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Mobile assisted or initiated

Subclass of:

455 - Telecommunications

455403000 - RADIOTELEPHONE SYSTEM

455422100 - Zoned or cellular telephone system

455436000 - Handoff

Patent class list (only not empty are listed)

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Entries
DocumentTitleDate
20090011766MOBILE COMMUNICATION SYSTEM AND MOBILE STATION PERFORMING DIVERSITY HANDOVER - A mobile station for communicating with base stations simultaneously in diversity handover. The mobile station monitors radio condition quality corresponding to a plurality of branches, selects one or more addition branch candidates based on the monitored radio condition quality. The mobile station arranges the addition branch candidates in order of the monitored radio condition quality; notifies a center of information on said plurality of branches including said addition branch candidates, the addition branch candidates being notified in the arranged order. Alternatively, the mobile station obtains a relative value of each of the addition branch candidates indicative of order of precedence to be used for the diversity handover based on the monitored radio condition quality of said addition branch candidates; and notifies a center of information on said plurality of branches including said addition branch candidates and their relative values.01-08-2009
20120184277METHOD FOR SELECTING COMMUNICATIONS NETWORK UTILIZING QUALITY OF SERVICE MEASUREMENTS - The invention relates to a method for determining a level of QoS of at least two concurrent communications networks and for executing a vertical handover if a predetermined QoS level is not fulfilled in the serving communications network. The invention also relates to a mobile terminal utilizing the method. The invention relates to also a home agent residing in a serving network and a computer program product utilized in a mobile terminal for accomplishing the method steps.07-19-2012
20130045744METHOD FOR OPTIMIZING POWER CONSUMPTION IN WIRELESS DEVICES USING DATA RATE EFFICIENCY FACTOR - An electronic device has wireless communications circuitry that supports communications using multiple radio access technologies. The electronic device may gather information such as data rate values, power consumption values, and other data for a currently active radio access technology and an alternative radio access technology. The electronic device may automatically switch between the currently active radio access technology and the alternative radio access technology based on a value of a data rate efficiency metric. The data rate efficiency metric may represent how efficiently each radio access technology is capable of using power to convey a given amount of data per unit time. The data rate efficiency metric may be evaluated using measured power consumption data, measured data rate values, and operating parameters such as signal strength and transmitted power parameters.02-21-2013
20090191876WIRELESS HANDOFFS BETWEEN MULTIPLE NETWORKS - The disclosure is directed to a mobile communication device, and method for handing off a mobile communications device between two networks. A processor in the mobile device may be used to establish a network connection with a server in a first network while supporting a call in a second network. The mobile device may also include a transceiver that receives information from the server relating to the network connection. The processor may use the information, local measurements, or both to determine whether to handoff the call to the first network.07-30-2009
20110195717COMMUNICATION SYSTEM, SECONDARY BASE STATION, WIRELESS COMMUNICATION METHOD, COMMUNICATION PROGRAM, COMMUNICATION CIRCUIT, AND WIRELESS RELAY APPARATUS - A communication system in which a primary base station or a secondary base station communicates with a mobile terminal. The primary base station sends the mobile terminal and the secondary base station an announcement signal which includes identification information for identifying a cell of the primary base station. When receiving the announcement signal, the secondary base station sends the mobile terminal a pseudo announcement signal which includes the identification information and adjacent cell information which includes information for a cell of the secondary base station. When receiving the announcement signal and the pseudo announcement signal, the mobile terminal compares a reception power of the signal received from the primary base station with that of the signal received from the secondary base station, and performs communication with one of the base stations which has higher power.08-11-2011
20100093356Method and apparatus of performing cell reselection procedure in wireless communication system - A method and an apparatus of performing a cell reselection procedure in a wireless communication system are provided. The method includes starting a first reselection timer if a signal property value of a first neighbor cell with a higher priority than a serving cell is increased to above a threshold, starting a first delay timer if a second reselection timer that is a reselection timer of a second neighbor cell with a higher priority than the first neighbor cell is running at the expiry of the first reselection timer, reselecting the second neighbor cell as a suitable cell if the second reselection timer expires before the expiry of the first delay timer, and reselecting the first neighbor cell as the suitable cell if the first delay timer expires before the expiry of the second reselection timer.04-15-2010
20100113031TERMINAL, METHOD FOR HANDOVER THEREOF, AND SUPPORTING METHOD FOR HANDOVER OF BASE STATION - A method for handover according to the present invention includes: requesting information on femto cells that are accessible by the terminal from a macro base station that manages the macro cells; receiving the femto cell information from the macro base station; and scanning neighboring femto cells based on the femto cell information.05-06-2010
20100113029METHOD AND A DEVICE FOR DYNAMIC FREQUENCY USE IN A CELLULAR NETWORK - A method for a network (05-06-2010
20120244865MOBILE COMMUNICATION METHOD - In a mobile communication method according to the present invention includes the steps of: transmitting, from a handover source radio base station to a swithcing center, a handover request including an NCC, a PCI and a K09-27-2012
20130084872WIRELESS COMMUNICATION SYSTEM, BASE STATION, TERMINAL, AND WIRELESS COMMUNICATION METHOD - A wireless communication system includes: at least one base station that forms a plurality of cells of different frequencies such that the cells partially or completely overlap with each other; and a terminal that is capable of recognizing the cells of the different frequencies. The base station determines priority factors of the different frequencies of the cells, and transmits the priority factors to the terminal that has set a cell formed by the base station as a serving cell. The terminal receives the priority factors from the base station forming the serving cell, and selects a cell to be set as the serving cell next from among the cells based on the priority factors.04-04-2013
20130079012Apparatus, Computer Programs and Methods For Enabling Filtering of Neighbor Cells or Frequencies - A user equipment UE receives (03-28-2013
20130035101Handover in Case of a Radio Link Failure - The present invention relates to methods and arrangements in a UE and a RBSin a wireless communications system, enabling an efficient handover of the user equipment. The method comprises transmitting (02-07-2013
20130079015RADIO COMMUNICATION SYSTEM, RADIO BASE STATION, RADIO TERMINAL, AND COMMUNICATION CONTROL METHOD - Each of a plurality of radio terminals (UE 03-28-2013
20130079014Method, Apparatus and System for Key Derivation - A method, an apparatus and a system for key derivation are disclosed. The method includes the following steps: a target base station) receives multiple keys derived by a source base station, where the keys correspond to cells under control of the target base station; the target base station selects a key corresponding to the target cell after knowing a target cell that a user equipment (UE) wants to access. An apparatus for key derivation and a communications system are also provided.03-28-2013
20130079013Radio Base Station; Radio Network Controller and Methods Therein - Embodiments herein relate to a method in a radio base station (03-28-2013
20100105392METHODS AND SYSTEMS FOR MANUAL CELL SELECTION IN BOUNDARY AREA FOR WIRELESS DEVICES - Certain embodiments of the present disclosure provide techniques for selecting a new cell, from a plurality of cells in a boundary area between first and second coverage areas, for a wireless device. The first and second coverage areas may include, for example, include cells controlled by first and second operators or cells in different time zones. In either case, the techniques may facilitate giving preference to cells in a same coverage area as a current cell. The wireless device may then select a cell from the list of neighbor cells as the new cell.04-29-2010
20100105393System and Method for Handoff Between Base Stations - A system and method for handoff are provided. A mobile station performs a make-before-break handoff of a control channel between a serving and target base station and a break-before-make handoff of a traffic channel between the serving and target base stations. The traffic channel handoff is performed after the control channel handoff has completed.04-29-2010
20120165022Method and Apparatus for Generation Problem Indications in a Cellular Radio System - In a method and an apparatus for indicating problems data from, typically automatically, entered cell relations is compared to site location information and mobile measurements, if available. An indication of a possible problem is triggered if the comparison indicates that the cell added as neighbours are not suitable as defined by one or many threshold functions. In accordance with one embodiment method of problem indication generation in a cellular radio system is provided. An apparatus receives a neighbor cell relation entries and site location information. The received information is compared and a problem indication is generated if the comparison indicates that cells entered neighbour cells are not close to each other as defined by at least one threshold values.06-28-2012
20120165021EFFICIENT HANDOVER EXECUTION METHOD OF TERMINAL IN BROADBAND WIRELESS ACCESS SYSTEM INCLUDING MULTIPLE FEMTO BASE STATIONS - The present invention relates to methods for performing fast handover by a terminal in an environment in which multiple femto base stations exist. A method for performing handover by a terminal includes transmitting, to a serving femto base station, a message for requesting seamless handover within a group including multiple femto base stations, the serving femto base station belonging to the group; receiving, from the serving femto base station, first command message including power information and allocation information; broadcasting an uplink signal that is applied with transmission power indicated by the power information, through an uplink resource indicated by the allocation information; receiving second command messages including measurements of the uplink signal measured by the multiple femto base stations from the serving femto base stations; and performing network re-entry to a target base station among the femto base stations.06-28-2012
20130045747METHOD AND APPARATUS FOR NETWORK SCANNING BASED ON NEIGHBOR INFORMATION - A wireless device receives neighbor information broadcasted by a current serving network. The neighbor information includes frequency information of neighbors and overlay RAT (radio access technology). According to an embodiment of the disclosure, the wireless device avoids various frequency blocks when scanning for a RAT when it is known from the neighbor information that those frequency blocks are used for a different RAT. Those frequency blocks can either be skipped altogether or scanned only after other frequency blocks are scanned. Therefore, the amount of network scanning can be reduced.02-21-2013
20130045745Method for Reducing the Handover Frequency by a Communication Device in Femtocell Networks - A method for reducing the handover frequency by a communication device in femtocell networks includes the steps: measuring the radio signal strength by a communication device and storing the information of the serving base station into a cache memory; checking whether the stored information in the cache memory is classified as “femtocell” or not; if so, deleting the macrocell's information from the measurement report by the communication device and transmitting this to the serving base station; when the radio link failure occurred, checking whether the stored information in the cache memory is classified as “femtocell” or not; if so, initiating a timer; detecting an available femtocell before the timer expires; transmitting a call reestablishment request message to the available femtocell for rebuilding the link.02-21-2013
20130045746MOBILE COMMUNICATION SYSTEM, NETWORK APPARATUS, AND MOBILE COMMUNICATION METHOD - A specific network apparatus 02-21-2013
20130183982APPARATUS AND METHOD FOR NEIGHBOR RELATION REPORTING - A method, apparatus and computer program product are provided to facilitate neighbor relation reporting. A method may include, while camping on a first cell, receiving an indication of detection of a second cell, causing initiation of cell reselection to the second cell, receiving system information from the second cell responsive to the initiation of cell reselection, causing termination of cell reselection, and causing provision of neighbor relation information to a network entity via the first cell.07-18-2013
20130053042MOBILE STATION AND METHOD FOR MOBILE COMMUNICATION SYSTEM - A mobile station includes a cell search unit that performs a cell search for a first mobile communication system or a second mobile communication system; a storing unit that stores a predetermined correspondence relationship between the mobile communication systems and moving speeds of the mobile station, wherein the cell search is to be performed for the communication systems; and a moving speed detector that detects a current moving speed of the mobile station, wherein, when a reconnection is required prior to completing a handover from the first mobile communication system to the second mobile communication system, the cell search unit performs the cell search for the mobile communication system corresponding to the current moving speed in the correspondence relationship.02-28-2013
20130053041METHOD AND SYSTEM FOR TRANSFERRING USER EQUIPMENT IN MOBILE COMMUNICATION SYSTEM - A method and system for transferring user equipment (UE) in a mobile communication system are disclosed. According to the method, a source core (CN) network determines to transfer a UE that it serves and sends a transfer instruction carrying UE transfer restriction information to the UE; an access network receives a transfer request that is sent by the UE according to the restriction information carried in the transfer instruction; the access network selects a target CN entity that is different from the source CN entity for the UE; and the UE is transferred to the target CN entity. The method and system provided by the present invention are applicable to user transferring between CN entities in any communication network. The transferring is initiated by a network side entity, and a more preferable CN entity is selected for the UE to provide a better service.02-28-2013
20100130210METHOD AND APPARATUS FOR WIRELESS COMMUNICATION - Systems and methods for performing a handoff of an access terminal from a macro node to a femto node are disclosed. In one embodiment, a femto convergence server may select a target femto node based on, at least in part, signal strengths of the reverse links between femto nodes with a specific identifier and an access terminal, and the transmit pilot powers of the femto nodes.05-27-2010
20090093254RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD AND BASE STATION - A radio communication system includes: a serving cell (for example, cell A functional unit 04-09-2009
20130072195ACQUISITION OF INFORMATION FOR A RADIO ACCESS NETWORK - There is provided an information acquisition method to be executed by a mobile station, connected to a first radio access network of a first radio access technology, to perform acquisition of an information set related to a second radio access network of a second, different radio access technology for enabling mobility to the second radio access network. Basically, the method comprises receiving (S03-21-2013
20130072196METHOD FOR PERFORMING HANDOVER IN BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to an efficient handover (HO) procedure when a base station having a relatively narrow coverage and a macro base station are both present. A method for performing a handover by a mobile station (MS) according to one embodiment of the present invention comprises the steps of: determining the type of a target base station that satisfies the pre-set handover trigger conditions; starting the handover procedure for the target base station when the target base station is a first type base station according to the determined results, and starting a first timer when the target base station is a second type base station having narrower coverage than the first type base station according to the determined results; and determining whether communication with the target base station is possible after the first timer has been completed, if the first timer had been started.03-21-2013
20130059589ENHANCED MOBILITY FOR DEVICES USING MOVING RELAY - Enhanced mobility for devices using a moving relay, or in a moving relay environment, may be valuable in the Long Term Evolution (LTE) of the 3rd Generation Partnership Project (3GPP). In particular, enhanced mobility procedures for user equipment (UE) can be useful with respect to a moving relay and the radio access network (RAN) interface (IF) between the user equipment and the moving relay. Thus, certain embodiments can improve the mobility procedures between moving relays and macro layer (stationary nodes, for example, eNodeBs). A method according to certain embodiments can include determining, by a user equipment, a stable average of a signal characteristic of a signal from a mobile access point. The method can also include limiting handover of the user equipment based on the stable average.03-07-2013
20120225658SYSTEM FOR UPDATING A NEIGHBOUR CELL LIST (NCL) OF A WIRELESS ACCESS NODE OF A TELECOMMUNICATIONS ARCHITECTURE AND METHOD THEREFORE - The invention relates to a system and method for updating a neighbour cell list of a wireless access node. User terminals to be to be transferred from a first wireless access node of a first wireless access network to a second wireless access node of a second wireless access network are detected. From the first wireless access node, one or more of the detected user terminals are requested to report cell information of a plurality of wireless access nodes of at least one of the first wireless access network and the second wireless access network. The cell information is received from the one or more of the detected user terminals and at least one of the first neighbour cell list and the second neighbour cell list is updated using the received cell information.09-06-2012
20130065597SYSTEMS AND METHODS FOR INDEPENDENT SETTING OF CELL CHANGE NETWORK CONTROL MODE AND NOTIFICATION OF CELL CHANGE MODE FOR UNCONTROLLED CELLS - Systems and Methods for Independent Setting of Cell Change Network Control Mode and Notification of Cell Change Mode for Uncontrolled Cells are provided. In some cases, separate behaviour is specified for mobile stations in respect of uncontrolled cells. In some cases, behaviour is signalled by the signalling used for normal cells, but different meaning is attributed to the signalling. In some cases, at least one further criterion is combined with the signalling for controlled cells to determine the behaviour for controlled cells. In some cases, additional signalling is employed.03-14-2013
20090233607AUTOMATICALLY CONFIGURING A NEIGHBOR SET FOR A BASE STATION - An automated technique for configuring a neighbor set for a base station (09-17-2009
20090233606Method and system for delivering and constructing status information in communication system - Disclosed is a method for delivering buffer status information to a target base station, to which a mobile station has decided to hand over, by a serving base station in a communication system. The method includes the steps of constructing buffer status information containing a first parameter indicating the number of a smallest packet among packets within a predetermined section stored in a buffer, a second parameter indicating the number of a packet to be transmitted at a next point of time, a third parameter indicating the number of a first packet, the lifetime of which has not yet expired, and a fourth parameter indicating whether or not an instruction to initialize the buffer status information has been transmitted to the mobile station; and transmitting a message containing the constructed buffer status information to the target base station.09-17-2009
20120115487Quality Control for Inter-Cell Handover - A method and apparatus for deciding whether the handover has to be done or not, where the decision is taken by the mobile unit. The mobile unit can reject the command from the base station if the quality of the communication might not be maintained in the second network. This decision is taken measuring some quality parameters of the second network and comparing them with a predefined threshold.05-10-2012
20130165126METHOD, DEVICE AND SYSTEM FOR CELL HANDOVER IN TELECOMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION - A method, device and system for a cell handover in a telecommunication system supporting carrier aggregation. The method may include: a Base Station (BS) determines that whether carrier components corresponding to one or more cells to be accessed are in the same frequency band, wherein the one or more cells to be accessed belong to a target BS, and are selected by a terminal which needs to perform the cell handover and is served by the BS; if yes, the BS encapsulates configuration information of all the cells in the one or more cells to be accessed in a handover command for initiating cell handover; otherwise, the BS encapsulates configuration information of one or more cells in the one or more cells to be accessed in the handover command, and sends the handover command to the target BS.06-27-2013
20120238274WIRELESS COMMUNICATION APPARATUS AND CONTROL METHOD - A wireless communication apparatus including a wireless communication interface configured to receive radio waves, and a processor configured to measure radio-wave qualities of the radio waves from a plurality of base stations in a periodic measurement period, to divide one measurement period out of the periodic measurement period, and to measure radio-wave qualities of the corresponding measurement-target base stations, to determine a base station to be excluded from the measurement-target base stations in a next measurement period in the periodic measurement period on the basis of the radio-wave qualities, and to allocate the measurement time period that has been allocated to the base station to be excluded in a measurement period to a measurement-target base station in the next measurement period.09-20-2012
20130165124CELL DEPLOYMENT METHOD AND DEVICE FOR REPLACING PCELLS - A cell deployment method and device for replacing PCells, used for enabling PCell replacement in a carrier aggregation system. Said method comprises: a User Equipment (UE) obtains PCell and SCell deployment information via a PCell replacement command; UE obtains target PCell and target SCell deployment information by combining the obtained PCell and SCell deployment information with saved original PCell and SCell deployment information, and hands over from the original PCell and original SCell to the target PCell and target SCell. A device used to carry out the method is also disclosed.06-27-2013
20130165125CONTROL APPARATUS, CONTROL METHOD, AND MOBILE COMMUNICATION SYSTEM - In a control apparatus, to control operations with a first base station forming a first radio section and a second base station forming a second radio section which is overlaid with the first radio section and has relatively lower transmission power, a connection change determination unit determines whether to perform connection in response to a connection destination change request from a mobile terminal, a measurement unit measures communication conditions from the first or second base station about all mobile terminals existing in the first radio section, a change value determination unit determines a change value of transmission power of the second base station, a prediction unit predicts communication conditions after transmission power of the second base station is changed based on the change value, and a power change unit changes transmission power of the second base station based on the change value.06-27-2013
20110281587MEASUREMENT REPORTING OF NEIGHBOR CELLS - At a user equipment, individual ones of a set of measurements of neighbor cells are associated with individual code points which are relative to a threshold (11-17-2011
20090156215Inter-system hand-over of a mobile terminal operable with a first and a second radio access network - The present invention provides a method of initiation a mobile originating service-based inter-system handover, and devices enabling the method. A communication network comprises at least two radio access networks (RANs) of different types, i.e. a radio access network (RAN) of a first type and a radio access network (RAN) of a second type. A dual-mode mobile terminal designed to be operable with both the RAN of the first type and the RAN of the second type communicates with the communication system via the RAN of the first type. The initiation of the inter-system handover is included in a transmission, which comprises at least one bearer capability (BC) field. The bearer capability (BC) field is set to indicate that a requested service is only operable with the RAN of the second type. In particular, at least one bearer capability (BC) field is set to a parameter value, which serves as indication for the receiving network and its processing entities, respectively, which receiving network indicated to carry out the inter-system handover initiated by the mobile terminal.06-18-2009
20110300870METHOD AND DEVICE FOR TRANSMITTING IWS IN A WIRELESS COMMUNICATION SYSTEM - Provided are a method and a device for transmitting an IWS (Inter-Working signal) of a femto base station in a wireless communication system. The femto base station generates a sequence of a preamble including information about a frequency band on which the femto base station operates, maps the IWS including the sequence of the preamble to a plurality of subcarriers on a frequency domain, and transmits the IWS to a terminal through the subcarriers. The IWS can be mapped to the plurality of subcarriers positioned on one equal OFDM (Orthogonal Frequency Division Multiplexing) symbol on a time domain or a plurality of preset RUs (Resource Unit).12-08-2011
20110171962MOBILE COMMUNICATION SYSTEM, USER APPARATUS AND METHOD - A disclosed user apparatus is for use in a mobile communication system including a macrocell and a closed cell wherein unspecified users are allowed to access the macrocell and specified users are allowed to access the closed cell. The user apparatus includes a measurement unit configured to measure quality of a signal provided from a camped cell in an idle state at a predefined cycle, a cell search unit configured to measure quality of a signal provided from a neighbour cell at a predefined cell search cycle, and a cell reselection unit configured to reselect a cell depending on the cell search result. A frequency of the macrocell is at least partially identical to a frequency of the closed cell. If the user apparatus resides in the macrocell and a predefined reselection criterion is satisfied, the closed cell adjacent to the camped cell is reselected as a standby cell. The predefined reselection criterion corresponds to a state where the quality of the signal provided from the closed cell has been higher than or equal to the quality of the signal provided from the camped cell by a predefined threshold for more than a predefined reselection duration.07-14-2011
20100113032METHOD OF HANDOVER AND BASE STATION INFORMATION TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM - A method of handover in a wireless communication system is disclosed. A method of handover of a mobile station in a wireless communication system with femtocells comprises transmitting a control message including at least one among information of first femtocell base station detected through initial scanning and location information of the mobile station to a base station; receiving information of one or more second femtocell base stations to which the mobile station is accessible, wherein the second femtocell base stations are searched based on the control message from the base station; and performing a handover to one of the second femtocell base stations.05-06-2010
20110263260DETERMINING CELL RESELECTION PARAMETER FOR TRANSMISSION BY ACCESS POINT - A parameter for transmission by an access point is determined in a manner that facilitates access terminal mobility. For example, a cell reselection parameter and/or a handover parameter may be determined based on the quality of a signal from one access point (e.g., a macro cell) at another access point (e.g., a femto cell). In addition, a cell reselection parameter and/or a handover parameter may be determined based on the proximity of one access point (e.g., a femto cell) to another access point (e.g., a macro cell). Through the use of these techniques, a parameter may be determined in a manner that mitigates access terminal ping-ponging between access points and that mitigates outages that may otherwise occur as a result of an access terminal remaining on an access point too long.10-27-2011
20100113030RADIO COMMUNICATION BASE STATION DEVICE AND RADIO COMMUNICATION METHOD - Disclosed are a radio communication base station device and a radio communication method which can reduce the interruption time of a service being received by UE while suppressing a resource consumption amount in an SFN area when the UE performs a handover from the SFN area to a non-SNF area. An MBMS reception request identification unit (05-06-2010
20100113028Method for Predicting Channel Quality Indicator (CQI) Values - The object of the present invention is to perform an enhanced prediction technique. The object is achieved by a method in a base station comprised in a radio access network. The base station is adapted to communicate with at least one user equipment, the method comprises the steps of receiving a sequence of CQI values sampled at the times t=1, . . . , n, from one or more of the at least one user equipments; estimating for each of the received specific CQI value k, the conditional expectation of the CQI value at time t+d, given the specific CQI value k at time t; and obtaining a predicted CQI value for the specific CQI value k, which predicted CQI value is the estimated conditional expectation of the CQI values at a time t+d for the specific CQI value k. Publ.05-06-2010
20120034920HANDOVER CONTROL METHOD, MOBILE COMMUNICATION SYSTEM, AND MOBILE COMMUNICATION TERMINAL - Handover failure caused when notification information is updated after a movement source base station transmitted parameter information necessary for a handover is prevented.02-09-2012
20130217395MOBILE APPARATUS AND METHOD - One aspect of the present invention relates to a mobile apparatus, comprising: a first bandwidth measurement unit configured to measure radio conditions of a serving cell and a neighbor cell in a first bandwidth; a second bandwidth measurement unit configured to measure the radio conditions of the serving cell and the neighbor cell in a second bandwidth greater than the first bandwidth; a control unit configured to selectively activate the first bandwidth measurement unit and the second bandwidth measurement unit; and a cell transition unit configured to perform cell transition from the serving cell to the neighbor cell based on the radio conditions of the serving cell and the neighbor cell measured by the first bandwidth measurement unit and the second bandwidth measurement unit, wherein the control unit switches between the first bandwidth measurement unit and the second bandwidth measurement unit at a first switch frequency.08-22-2013
20120108243MOBILE COMMUNICATIONS SYSTEM AND CONTROL METHOD THEREOF - Disclosed is a mobile communications system including a plurality of base station apparatuses which are located at geographically dispersed locations and perform a wireless communication with a mobile device. The system further includes a maximum ratio combining unit which performs maximum ratio combining processing regarding a signal the base station apparatuses receive from the mobile device, and a selection combining unit which performs selection combining processing regarding the signal from the mobile device. A selection unit included in the system selects one or both of the maximum ratio combining unit and the selection combining unit according to at least one of an external factor and a change of a distribution state of the mobile device under communication.05-03-2012
20090264134RADIO ACCESS TERMINAL, BASE STATION CONTROLLER, AND HANDOFF CONTROL METHOD IN RADIO COMMUNICATION SYSTEM - In a radio communication system wherein radio frequencies for communicating with a radio terminal are different in radio base stations, a table in which positional information, information on the frequency used for transmission/reception to/from the terminal, and a decision condition in a handoff operation are stored as to each base station is prepared in a base station controller beforehand. When the positional information is received from the radio terminal, the base station controller selects the base station being a handoff candidate, on the basis of the positional information of the radio terminal, the positional information of each base station and the decision condition of the handoff operation with reference to the table, and it transmits a handoff request message which contains the information on the frequency of the base station being the handoff candidate, to the radio terminal through the base station communicating with the radio terminal.10-22-2009
20100248726Communication Method, Communication System And Base Station - A communication method in a communication system, wherein the communication system includes a mobile terminal, a communication server that distributes data to the mobile terminal, and plural base stations that are capable of relaying the data, and one of the base stations among the plural base stations is responsible for relaying the data. The communication method includes transmitting, to the communication server, restriction instruction information to restrict a data transmission rate, by a first base station that is responsible for relaying the data among the plural base stations, and hand-overing, by the first base station, causing a second base station different from the first base station to take over the responsibility of relaying.09-30-2010
20110028152HANDOVER METHOD AND CONTROL APPARATUS USING THE HANDOVER METHOD - A receiving unit receives a first list showing base station apparatuses picked up by a terminal apparatus. The first list is attendant to a request for position registration sent from the terminal apparatus to a first base station apparatus. A selector compares the received first list with a second list showing base station apparatuses subscribed to by the terminal apparatus, and selects an already-subscribed second base station apparatus picked up by the terminal apparatus. An instruction unit has the first base station apparatus instruct the terminal apparatus to perform a handover to the second base station apparatus selected by the selector.02-03-2011
20080268851CHANGES OF FORWARD-LINK AND REVERSE-LINK SERVING ACCESS POINTS - In a communication system in which a mobile station accessing the main network via a plurality of base stations, the mobile station can freely select any of the base stations as a forward link (FL) serving station. In addition, the mobile station can also freely select another or the same base station as a reverse link (RL) serving station. The mobile station has stored in its memory a plurality of routes corresponding to the plurality of base stations, with each route dedicatedly assigned to a particular base station. During handoff of one base station to another as either the FL or the RL serving station, exchanged data packets are processed in the respective routes of the base stations involved.10-30-2008
20080268849METHOD AND APPARATUS FOR HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for handover of a mobile station (10-30-2008
20090117903SYSTEM AND METHOD FOR ASSISTING A MOBILE TERMINAL IN RESELECTING OR TRANSFERRING CELLS BETWEEN DIFFERENT TECHNOLOGIES - The invention relates to a system and to a method for assisting a mobile terminal (05-07-2009
20090305704HANDOVER CONTROL APPARATUS, MOBILE COMMUNICATION SYSTEM, AND HANDOVER METHOD - A handover control apparatus includes a service determination unit determining a type of a service being communicated with by a mobile station and a handover processing unit performing handover in accordance with either a network initiative type handover procedure or a mobile station initiative type handover procedure based on the determination. If the service being communicated with by the mobile station belongs to a communication quality guaranteed type service, the handover is performed in accordance with the network initiative type handover procedure.12-10-2009
20110189996MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A mobile communication method includes: a step which establishes a second radio access link between a mobile station and a radio communication data combining device for “an area limit service” via a radio base station for “a public area service” when a first radio access link is established between the mobile station and the radio communication data combining device for “the area limit service” via the radio base station for “the area limit service”; and a step in which the radio communication data combining device for “the area limit service” combines the data for “the area limit service” transferred from the radio base station for “the area limit service” and the data for “the area limit service” transferred from the radio base station for “the public area service.”08-04-2011
20120142357HANDOVER CONTROL SYSTEM, TARGET CONTROL APPARATUS, SOURCE CONTROL APPARATUS, HANDOVER CONTROL METHOD, AND COMPUTER READABLE MEDIUM - A second control apparatus (06-07-2012
20110269471METHOD FOR OBTAINING THE TRANSMISSION ADDRESS OF THE TARGET BASE STATION AND METHOD FOR ESTABLISHING THE X2 INTERFACE CONNECTION - A method for obtaining transmission address information of a target base station (BS), comprising: configuring a target BS with corresponding relations between information of each transmission address of the target BS and related information of other BSs; a source BS transmitting its related information to the target BS through a MME; after receiving the related information of the source BS, the target BS filtering out transmission address information required for establishing an X2 interface connection with the source BS from all transmission addresses of the target BS, and transmitting the out-filtered transmission address information to the target BS through the MME. A method for establishing an X2 interface connection between BSs further comprises, besides the above steps, the source BS initiating a flow of establishing the X2 interface connection to the target BS using the transmission address information of the target BS after receiving it.11-03-2011
20090298504METHOD FOR ACQUIRING INFORMATION FOR MEDIA INDEPENDENT HANDOVER - This document is related to a method for acquiring information for media independent handover. More specifically the method comprises: submitting a media independent handover (MIH) query to a base station (BS) by sending a first request message, and receiving a response to the MIH query. Because the first request message is used for authorization, preferably the PKM message, the MS can acquire information for handover between heterogeneous networks before the MS finishes the network entry.12-03-2009
20100015984Method and Arrangements for an Event Triggered DRX Cycle - The invention relates to methods and arrangements for an event triggered DRX cycle adjustment. A user equipment located in a serving cell of a mobile communications network monitors downlink communication at predetermined time intervals when operating in discontinuous reception mode. The user equipment also performs communication parameter measurements regarding at least one of the serving cell and one or more neighbor cells. After the occurrence of a first event, the user equipment sends at least one of measurement data and a first event report to the network. The sending is triggered by the occurrence of the first event. The monitoring is caused to be performed at shortened time intervals after the occurrence of a second event, wherein the second event is defined to indicate a higher probability of receiving a handover command than the first event.01-21-2010
20090005047Media independent vertical handovers - In general, in one aspect, the disclosure describes a method including initiating a network handover between a current network point of attachment (POA) and a mobile mode (MN). Pre-authentication of target network POAs is performed after the MN identifies the target network POAs. One of the target network POAs is selected based at least in part on the pre-authenticating. An IP address is pre-provisioned for MN in the selected target network POA. Communications between the MN and the selected target network POA are established.01-01-2009
20090258650Apparatus and method for reduction of handover interruption time using estimated handover time negotiation in a broadband wireless communication system - An apparatus and method for reduction of a handover interruption time using an estimated handover time negotiation in a broadband wireless communication system are provided. A method for supporting a handover of a mobile station in a serving base station includes receiving a handover pre-notification response message including a residual estimated handover time from a target base station, determining a current residual estimated handover time using the residual estimated handover time, and exchanging the determined residual estimated handover time with the target base station.10-15-2009
20120071165METHOD AND DEVICE FOR IMPROVING NETWORK DISCOVERY AND SELECTION - The present invention provides a method for improving Network Discovery and Selection suitable for a UE which is moving into a new TA, which comprises: receiving, by a MMF, a TAU request including the new TA from the UE; allocating, by the MMF, a new TA List according to the new TA in the TAU request; sending, by the MMF, the new TA List to the UE; sending, by the MMF, a TA information to a Mobility Policy Function, MPF, for updating mobility policy of the UE if the new TA is a special TA covered by different networks.03-22-2012
20090088166METHODS AND APPARATUS FOR COMMUNICATING AN INTERFERENCE QUOTIENT TO IMPROVE PREEMPTIVE ROAMING - Methods and systems are provided for improved preemptive roaming. A network switching device includes an on-board locationing engine configured to determine the location of a mobile unit in an environment then compute a first interference quotient for the mobile unit and a first access port and a second interference quotient for the mobile unit and a second access port. The first and second interference quotients are based at least in part on the location of the mobile unit. The network switch communicates the first interference quotient and the second interference quotient to the mobile unit, which then associates with the AP having the most desirable interference quotient. The systems and methods are applicable, for example, to networks operating in accordance with 802.11, RFID, WiMax, WAN, Bluetooth, Zigbee, UWB, and the like.04-02-2009
20090203380SYSTEM AND METHOD FOR HANDOVER OF MOBILE STATION IN A WIRELESS MOBILE COMMUNICATION SYSTEM - A method for handover by a Mobile Station (MS) in a wireless mobile communication system is provided. The MS receives from a serving Base Station (BS) an identifier and an interference level value of a neighboring BS. The MS determines a hysteresis margin value used for determining handover from the serving BS to the neighboring BS taking into account the interference level value of the neighboring BS. The MS sends a handover request to the serving BS when a difference between strength of a signal received from the neighboring BS and strength of a signal received from the serving BS exceeds the determined hysteresis margin value.08-13-2009
20090117905Cell Selection Method, Mobile Station Device And Mobile Communication System In Hierarchical Cell Structure - In a radio mobile communication system adopting a hierarchical cell structure comprising a plurality of layers having respective cells of different sizes, the threshold value of the number of times of cell reselections and/or the threshold value of the time required to measure the number of times of cell reselections are set for each layer. A mobile station device compares the number of times of cell reselections in a specific time and/or the time required for the number of times of cell reselections to reach a specific value with the threshold values and selects a transfer target cell.05-07-2009
20090247168MOBILE STATION, BASE STATION, MOBILE COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A mobile station, a base station, a mobile communication system and a communication method enabling operations associated with simultaneous uplink reception in multiple stations to be simplified are provided. The base station includes a transmission timing determining unit determining a transmission timing based on scheduling conducted upon a data transmission request from a mobile station and notifying the mobile station of the transmission timing, and a receiving unit receiving data in accordance with the transmission timing.10-01-2009
20090275336MOBILE STATION CAPABLE OF SWITCHING CONNECTION DESTINATION RADIO BASE STATION AND METHOD OF SWITCHING CONNECTION DESTINATION - A quality memory unit remembers a quality table in which qualities of communication with radio base stations are arranged according to identification information of the radio base stations. A processing unit determines, based on the quality table in the quality memory unit, a selecting radio base station to select a switching radio base station to be a connection destination after switching. The processing unit sends the quality table to the selecting radio base station when switching the connection destination radio base stations. A mobile station communication unit receives identification information specifying the switching radio base station selected based on the quality table sent from the processing unit and sends a connection request to the switching radio base station specified by the identification information.11-05-2009
20090137251Calculation and broadcast of cell-load ratio and intelligent cell selection for IEEE802.16M - A method for data transmission, contemplates calculating a cell-load ratio by:05-28-2009
20090275335Determining a handoff metric - A method and apparatus of determining a hand-off metric is disclosed. One method includes a subscriber receiving identifications of a neighboring set of base stations from a serving base station. From the neighboring set, the subscriber determines an active set of base stations. The active set is determined by the subscriber measuring received signal power from each of the base stations of the neighboring set at first discrete points in time, averaging the received signal power for each of the base stations of the neighboring set, and selecting the active set based on the average received signal power of the base stations of the neighboring set. Determining the at least one hand-off metric further includes the subscriber measuring at second discrete points in time an excess received signal power for each base station of the active set, wherein the excess received signal power includes signal power received by the subscriber in excess of power received from the base station. The subscriber averages the excess received signal power. The subscriber calculates the hand-off metric by calculating a ratio of average receive signal power to average excess received signal power, for each base station of the active set.11-05-2009
20090047962Transfer-of uplink power control parameters during handovers - The present invention provides a method for performing handover of a mobile unit from a source base station to a target base station. The source base station determines that a mobile unit should be handed over to the target base station. The target base station transmits uplink power control parameters associated with the target base station to the source base station, which transmits them to the mobile unit.02-19-2009
20100184440MOBILE DEVICE NETWORK SELECTION - The described implementations relate to automatic network selection in relation to wireless mobile devices. One method can be applied to a mobile device that has both Wi-Fi and cellular capabilities. The method can attempt to identify Wi-Fi network availability for the mobile device. This method also evaluates whether to configure the mobile device to accomplish data communication over an identified Wi-Fi network or a cellular network.07-22-2010
20100227616Method And System For Detecting Data Congestion And Applying A Cell Reselection Offset - A method and apparatus for reducing data congestion in a cell having signal strength, the method having the steps of: assigning a congestion penalty at a mobile device to a cell; applying the congestion penalty to the signal strength to create a selection value; and performing cell reselection using the selection value.09-09-2010
20120196604PORTABLE TERMINAL - When it is appropriate to switch communication method, a portable terminal enables the notifying of a user of conditions. On the basis of visited network identification information acquired from a mobile communication system, the control section of the portable terminal displays a message on a display for alerting the user when there has been a switch in communication method from 3G to GSM. At this time, the change in visited country wherein the portable terminal is currently located is determined, and after displaying the message, the display of the message is suppressed until the visited country changes. That is, by only displaying the message when network switching occurs when changing the visited country and the visited network changes to a GSM network, alerts are prevented from being displayed more than necessary.08-02-2012
20100159934CONTROLLING HANDOVER - A method for controlling a handover and an apparatus are provided. The apparatus includes an interface to communicate with mobile units and a processing unit to determine a need for a mobile unit having more than one ongoing service connection to execute a handover and to send a handover command to the mobile unit through the interface, the handover command instructing the mobile unit to handover part of the ongoing service connections to a new network.06-24-2010
20100210270MOBILE COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, AND HANDOVER METHOD - A communication path between base stations connected via a network is switched so that data received by a mobile station that is during handover is not interrupted. A mobile station (08-19-2010
20100144354HOST APPARATUS, MOBILE STATION, SERVING BASE STATION, TARGET BASE STATION, AND COMMUNICATION METHOD THEREOF FOR USE IN A WIRELESS NETWORK - A host apparatus, a mobile station, a serving base station, a target base station, and a communication method thereof for use in a wireless network are provided. The wireless network comprises at least one mobile station, the host apparatus, a serving base station, and a target base station. The at least one mobile station and the host apparatus belongs to a same handover group, and receive a handover request signal from the serving base station. The host apparatus transmits a handover confirmation signal to the serving base station so that the at least one mobile station and the host device of the handover group handover to the target base station. Thereby, the at least one mobile station can be handed over to the target base station without need to transmit the handover confirmation signal, so as to save the bandwidth of the wireless network.06-10-2010
20090075661MOBILE COMMUNICATION SYSTEM, RADIO BASE STATION DEVICE, AND TRANSMISSION POWER CONTROL METHOD - A radio base station control device instructs the radio base station device of a handover destination to establish a radio link with a mobile station terminal and requests the radio base station device of a handover source to report transmission power information concerning the down radio link to the mobile station terminal. In response to the request from the radio base station control device, the radio base station device of the handover source reports the transmission power information concerning the down radio link to the radio base station control device. The radio base station control device transfers the transmission power information from the radio base station device of the handover source to radio base station device of the handover destination. The radio base station device of the handover destination controls the transmission power of down link to the mobile station terminal by using the transferred transmission power information until synchronization of the up radio link is established.03-19-2009
20090075660LIMIT REDIRECTIONS IN AN UNLICENSED MOBILE ACCESS NETWORK - The present invention provides a method and system to limit redirections by using a redirection counter contained within the mobile station (MS 03-19-2009
20090149184LOAD BALANCING BY TERMINAL TYING - Example embodiments of methods, computer program products, apparatus, and systems for controlling handover of a terminal device are disclosed. In an example system, a terminal device is configured to select a handover target and initiate handover on its own. In the example system, the terminal device is tied to at least one predetermined cell by performing network-sided control of available handover targets.06-11-2009
20080293419MOBILITY PROCEDURES AND DIFFERENTIATED CHARGING IN HOME NODE-Bs - A method and apparatus for implementing Idle and Connected Mode mobility to and from a Home evolved Node-B (HNB) in a wireless environment. Methods to implement differentiated charging when accessing HNBs, as well as the criteria used to make a cell reselection decision when an HNB is detected, criteria for making a handoff decision and methods to indicate charging and other policies/preferences and configurations to a wireless transmit/receive unit (WTRU).11-27-2008
20080268850METHOD AND APPARATUS FOR HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for handover in a wireless communication system. A connection can be established with a mobile station (10-30-2008
20090111471In-Call Handoff Between Cellular and Packet Switched Networks - A telecommunications device is operable to perform in-call handoff between a cellular network and a packet-switched network. The telecommunications device includes interfaces connecting the telecommunications device with a circuit-switched network and a packet-switched network. The telecommunications device is operable to receive a request from a multi-mode device to handoff an existing call over a cellular network to the packet-switched network. The existing call is between the multi-mode device and a remote party and was established without the telecommunications device. In response to receiving the request, the telecommunications device establishes a first call leg in the packet-switched network with the multi-mode device. The multi-mode device sends a transfer signal to a call server in the cellular network requesting the transfer of the on-going voice session from itself to the telecommunication device. A second call leg is setup between the telecommunication device and a remote party. The telecommunication device helps to bridge the first call and second call leg, and then the multi-mode device can continue the voice session in packet switched network.04-30-2009
20130130693USER EQUIPMENT SIGNALING TRAFFIC REDUCTION - A method in one example comprises receiving a measurement report for a handover at a source evolved Node B (eNodeB) of a Long Term Evolution (LTE) communication network. The measurement report is received from a user equipment (UE) served by the source eNodeB. A determination is made whether the UE is dormant. A determination is made whether a current load level for the handover is over a threshold. The measurement report is discarded if the current load level is over the threshold and the UE is dormant. The handover is triggered based on the measurement report if the current load level is not over the threshold or the UE is not dormant.05-23-2013
20130130694WIRELESS COMMUNICATION DEVICE CAPABLE OF EFFICIENT HANDOFFS - A wireless communication device is disclosed that is capable of performing efficient handoffs in order to maximize connection time with either a serving or target base station. The wireless communication device performs measurements of only intra-frequency base stations to avoid retuning its radio module. Based on this information, as well as stored information relating to nearby base stations, the serving base station is able to estimate a position of the wireless communication device and compare the estimated position to positions of the known base stations in order to make a handoff decision. In addition, by storing information during measurement or handoff preparation, the device is capable of skipping handoff steps, immediately return to the serving base station after handoff failure, and/or perform streamlined PLMN searching.05-23-2013
20090069015MOBILE COMMUNICATION SYSTEM, BASE STATION CONTROL APPARATUS, MOBILE TERMINAL AND METHOD FOR CONTROLLING HANDOVER - A mobile communication system that is possible to shorten time from a handover request to a handover completion and to perform a high-speed handover is described. The mobile communication system includes a plurality of base stations which is configured to make wireless communication with a mobile terminal through, and a base station control apparatus connected to the base stations. The base station control apparatus includes a handover control section determines a handover base station to be handed over by the mobile terminal from the base stations, and directs the mobile terminal to hand over to the handover base station.03-12-2009
20130143573METHOD AND SYSTEM OF COMMUNICATING MEASUREMENT INFORMATION ASSOCIATED WITH A USER EQUIPMENT IN A WIRELESS COMMUNICATION NETWORK ENVIRONMENT - A method and system of communicating measurement information associated with user equipment in a wireless communication network environment is provided. The method and system include a connection re-establishment request message is transmitted to a target base station associated with a target cell when a handover failure is detected. Then, a connection re-establishment response message is received from the target base station. Furthermore, a connection re-establishment complete message is transmitted to the target base station upon successful re-establishment of the wireless connection between the user equipment and the target base station, where the connection re-establishment complete message includes an indication of availability of measurement information associated with the handover failure with the user equipment. Additionally, a request to transmit the measurement information is received from the target base station. Moreover, the measurement information (e.g., radio conditions, RAT type, etc.) is transmitted to the target base station.06-06-2013
20090036134REVISION LEVEL NOTIFICATION METHOD AND SYSTEM FOR MOBILE STATION - A revision level notification method and system for a mobile station is provided for facilitating a handover between networks of different generations. The revision level notification method for an inter-generation handover includes detecting a handover trigger event for a handover from a first network to a second network, setting a protocol version in association with the first network, receiving a classmark enquiry message from the second network, and transmitting a classmark change message containing a revision level of a mobile station obtained with reference to the protocol version to the second network in response to the classmark enquiry message.02-05-2009
20110014916METHOD FOR HANDOVER WITH CONSIDERATION OF THE NEIGHBOR BASE STATIONS' CIRCUMSTANCES - A method for a handover with consideration of neighbor base stations' circumstances is disclosed. The method for a handover with consideration of neighbor base stations' circumstances by a mobile station in a wireless communication system includes transmitting a handover request (MOB_MSHO-REQ) message to a serving base station, receiving a handover response (MOB_BSHO-RSP) message including a base stations list made with consideration of the neighbor base station's circumstances from the serving base station, and selecting a base station among neighbor base stations except some base stations of the base stations list and transmitting a handover indicate (MOB_HO_IND) message including a information of the selected base station to the serving base station.01-20-2011
20110014915METHOD FOR MOBILE COMMUNICATION AND SYSTEM THEREOF - A method for mobile communication and a system thereof are provided. The system for mobile communication includes a main base station and a plurality of sub-communication devices. The sub-communication device is one of a sub-base station and a user equipment. The sub-base stations and the user equipments are located in the macrocell of the main base station. The method includes the following steps. First, locations of the sub-communication devices are obtained. Then, the sub-communication devices are grouped based on the locations of the sub-communication devices. And, an allocation of resource blocks is obtained according to the grouping results. The sub-communication devices receive the allocation of resource blocks for control signaling and data transmission. And, the usage of same resource blocks are enabled by the sub-base station allocated in the same resource blocks in response to receipt of the allocation.01-20-2011
20110086641Methods for Enhancing Performance of Open-Access and Closed-Access Femtocells - In a system including one or more femtocells within a service area of a macrocell, a method includes: (a) receiving from a base station of each femtocell information regarding available resources at the femtocell; (b) measuring an signal-interference-to-noise ratio (SINR) at a mobile station relative to the macrocell and each femtocell; and (c) selecting for the mobile station one of the femtocells for a hand-off, wherein the femtostation is selected based on the combined capacity of the macrocell and the femtocells after the hand-off. When a hand-off to a femtocell is not allowed, a method for determining whether or not a spectral resource of the macrocell is reused includes (a) receiving from a base station of the macrocell a first set of spectrum-sensing data, the first set of spectrum-sensing data comprising spectrum-sensing data of mobile station of the macrocell; (b) receiving from one or more mobile stations associated with the femtocells a second said of spectrum-sensing data; and (c) based on the first set of the spectrum-sensing data and the second set of spectrum-sensing data, determining whether or not to reuse in a femtocell a portion of a spectrum used by the macrocell. The determining step may be carried out at a base station of a femtocell, and the method further requires sensing a spectrum at the base station of the femtocell to obtain a third set of spectrum-sensing data, which is also used in determining whether or not to reuse the portion of the spectrum used by the macrocell.04-14-2011
20110212727METHOD FOR PROCESSING HANDOFF CONFIRM MESSAGES - The present invention provides a method for processing handoff confirm messages. The method includes the following steps: step S09-01-2011
20090312025MOBILE COMMUNICATION SYSTEM, MAINTENANCE TERMINAL, ADJACENT CELL INFORMATION OPTIMIZING METHOD, PROGRAM, AND RECORDING MEDIUM - A maintenance terminal comprises a detected cell information collection unit that collects detected cell information including identification information of a handover original cell and identification information of a cell as an expected movement destination from a radio network controller, a detection count record unit that records the number of detection times that the relationship between the identification information of the handover original cell and the identification information of the cell as the detected expected movement destination is determined as not included in the relationship between the identification information of the handover original cell and the identification information of the adjacent cells recorded in the radio network controller, based on the collection of the detected cell information, and an adjacent cell information additional-registration unit that additionally registers the relationship between the identification information of the handover original cell and the identification information of the adjacent cells corresponding to the number of detection times in the adjacent cell information, when the number of detection times exceeds a threshold value.12-17-2009
20120244867WIRELESS COMMUNICATION SYSTEM, MOBILE TERMINAL, AND CELL SEARCH - A mobile terminal includes: a macrocell search unit which searches for a macro base station, the mobile terminal itself communicating with a macro base station forming a macrocell or a femto base station which forms a femtocell; a cell ID detection unit which receives report information from the macro base station searched by the macrocell search unit and detects a cell ID of the macro base station; a cell ID information storage unit which stores the cell ID of the macro base station; a cell ID comparison unit which compares the cell ID stored in the cell ID information storage unit with the cell ID detected by the cell ID detection unit; a control unit controlling the macrocell search unit, the cell ID detection unit, the macrocell search unit, and the cell ID comparison unit; and a femtocell search unit which performs a cell search for the femto base station.09-27-2012
20120244866METHOD AND APPARATUS FOR IMPROVING RRC CONNECTION PROCEDURE - The present invention provides a method for improving a Radio Resource Control (RRC) Connection procedure in user equipment (UE) of a wireless communication system. The method includes steps of performing an RRC Connection procedure, and resetting or re-establishing a lower layer protocol entity for Signaling Radio Bearers (SRBs) when a cell reselection occurs.09-27-2012
20100069073SYSTEM AND METHOD FOR SYSTEM SWITCH AND HANDOVER BETWEEN WIRELESS COMMUNICATION SYSTEMS - A method of a base station for wireless communication includes providing a first zone and a second zone for wireless communication; operating the first zone using a first operation mode; and operating the second zone using a second operation mode. The method also includes communicating with a mobile station in the first zone using the first operation mode; determining whether the mobile station is capable of operating using both the first operation mode and the second operation mode; and performing, if the mobile station is determined to be capable of operating using both the first and second operating modes, a zone switch procedure to switch the mobile station from the first zone using the first operation mode to the second zone using the second operation mode.03-18-2010
20100062773Radio Communication Device and Radio Communication Method - When communication quality exceeds the first threshold, the radio communication terminal 03-11-2010
20100240374 METHOD FOR REDUCING THE RISK OF DROPPED CALLS IN A MOBILE COMMUNICATIONS NETWORK - A method for reducing the risk of dropped calls in a mobile communication network, wherein secondary connection information is sent to a mobile station during an event via a first communication link using a first radio access technology; it is detected when the mobile station makes a new connection on a second communication link specified in the secondary connection information; and packets for the mobile station from the first communication link are rerouted to the second communication link.09-23-2010
20110250893APPARATUS AND METHOD OF PERFORMING MEASUREMENTS LOGGING IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus of performing measurements logging in a mobile communications system is provided. A user equipment receives a first measurement request message from a first cell and receives a handover command message. Upon receiving the handover command message, the user equipment stops a transmission of a response to the first measurement request message.10-13-2011
20110250892METHODS AND APPARATUS FOR FACILITATING ROBUST FORWARD HANDOVER IN LONG TERM EVOLUTION (LTE) COMMUNICATION SYSTEMS - Method and apparatus for facilitating inter-cell connections, such as during a forward handover or radio link failure (RLF), are disclosed. A user terminal such as a UE may store identity information associated with a source cell, and use this information in accessing target or other cells subsequent to radio link failure so as to facilitate access to context information of the user terminal. A base station may be configured to improve handover performance by associating context information with a newly assigned terminal identity. Handover performance may be enhanced by facilitating connection processing in the event of inability to retrieve user terminal context from a source cell.10-13-2011
20110098047METHOD FOR EFFICIENTLY INCREASING HAND-OFF AND ACCESS RELIABILITY - A method, a network base station, and a user communication device for transmitting control data are disclosed. A processor 04-28-2011
20090221290System and method for transmitting and receiving a signal using multiple frequency bands in a wireless communication system - Disclosed is a system and a method of signal transmission/reception by a mobile station in a wireless communication system. The method includes: transmitting a first sub-band preparation indicator, which indicates that the mobile station has been prepared for transmission/reception of a signal through a first sub-band, to a base station through a primary band; transmitting a first sub-band failure indicator to the base station through the primary band upon detecting failure in transmitting the first sub-band preparation indicator; receiving sub-band information on a second sub-band, which is different from the first sub-band, from the BS through the primary band; and acquiring synchronization with the second sub-band, so as to enable transmission/reception of a signal through the second sub-band based on the sub-band information.09-03-2009
20090117904MOBILE STATION AND HANDOVER CONTROL METHOD - A mobile station according to the present invention includes: a radio quality measurement unit 05-07-2009
20080280615Method and apparatus ensuring application quality of service - A method and apparatus for ensuring application of quality of service requirements on an access network. The method includes comparing, in a mobile communication device, one or more application signaling requirements of a selected application with one or more link characteristics of a link between the mobile communication device and an access node of an access network. Based on the comparison, the method further includes selecting at least one of: signaling, in the mobile communications device, to a handover algorithm to indicate that a handover to another access node is desired if it is determined that the application signaling requirements cannot be met by the link; and determining, in the mobile communication device, one or more transmission characteristics for the selected application based on the one or more application signaling requirements and the one or more link characteristics, and transmitting a signal from the mobile communication device to the access node for the selected application using the determined one or more transmission characteristics if it is determined that the application signaling requirements can be met by the link.11-13-2008
20080274742METHOD FOR PERFORMING MOBILITY MEASUREMENTS AMONG DIFFERENT NETWORKS - A mobile station (11-06-2008
20110021198Systems And Methods For Selectively Pre-Registering Data Paths For Mobile Stations - The present invention relates to systems and methods for selectively pre-registering a data path for a mobile station. In an embodiment, a serving base station receives a mobile-originated handoff-request message from a mobile station, wherein the mobile-originated handoff-request message identifies one or more target base stations. The serving base station then responsively determines whether to instruct each respective target base station to pre-register a data path for the mobile station. The serving base station then sends a respective serving-to-target handoff-request message to each identified target base station, indicating whether the serving base station is instructing that target base station to pre-register a data path for the mobile station.01-27-2011
20100285806MOBILE STATION AND MOBILE COMMUNICATION METHOD - A mobile station (UE) including: a measurement information storage unit (11-11-2010
20110077010METHOD FOR PROCESSING RADIO LINK FAILURE REPORT AND METHOD FOR ADJUSTING MOBILE PARAMETER - A method and a system for processing a Radio Link Failure (RLF) report, where when a User Equipment (UE) encounters an RLF in a first cell controlled by a first evolved base station and selects a second cell controlled by a second evolved base station to re-establish an Radio Resource Connection (RRC), are provided. The method includes sending, by the second evolved base station, the RLF report to every corresponding evolved base station according to the PCI of the first cell having been received from the UE, where the PCI of the first cell, the PCI of a second cell, the CRNTI of the UE in the first cell, and UE authentication information are carried in the RLF report, and authenticating, by every evolved base station the UE according to the UE authentication information. Another method for processing an RLF report, and two methods for adjusting a mobile parameter, are also provided.03-31-2011
20100323702HANDOVER DECISION METHOD IN WIRELESS COMMUNICATION SYSTEMS AND APPARATUS THEREOF - Provided is a method for deciding when to perform a handover in a wireless communications system, which includes checking a handover information between a network and a mobile terminal; determining a portability of the mobile terminal based on the handover information; and determining to perform the when a service disconnection is anticipated or estimated based on portability of the mobile terminal.12-23-2010
20120034921Expedited Handoff - Systems and methodologies are described that facilitate handing off from a first sector to a second sector. An established link to the first sector may be employed to communicate with the second sector. A handoff request from a wireless terminal to the second sector and an associated handoff response from the second sector to the wireless terminal may both traverse the first sector.02-09-2012
20110256874HANDOFF METHOD BETWEEN DIFFERENT SYSTEMS AND WIRELESS TERMINAL - A method of performing a handoff between a plurality of wireless systems having different service areas and a wireless communication terminal are provided. A means for selecting one of the wireless systems to be connected according to the average moving speed of the wireless terminal is provided. When the average moving speed is changed across a certain threshold, the wireless terminal starts selecting one of the wireless systems as a handoff destination. Upon selection of the handoff destination, the current throughput is compared with the estimated throughput of the handoff destination. When an improvement in the throughput can be expected, the wireless terminal performs the handoff. The wireless terminal incorporates a plurality of control devices to select the handoff destination while communicating with the current wireless system.10-20-2011
20110081910Method and communications network for providing services in relation to a mobile device - The present invention relates to a method of developing a cellular communications network (04-07-2011
20120309399Method for Falling Back to 2G/3G Network, Relevant Device and Communication System - Embodiments of the present invention provides a method for falling back to a 2G/3G network, a relevant device and a system. The embodiments of the present invention includes: receiving, by a mobility management entity, a first message from an access network device, where the first message carries location area information of a target 2G/3G cell to which a user equipment UE prepares to connect; sending a second message for requesting to perform a location update on the UE to a mobile switching center MSC corresponding to a location area of the target 2G/3G cell; receiving a third message from the MSC, where the third message carries a temporary mobile station identity TMSI allocated to the UE by the MSC; and sending, to the UE, a fourth message carrying the TMSI, so that the UE, after being connected to the target 2G/3G cell, communicates with the MSC by using the TMSI.12-06-2012
20120309398BASE STATION APPARATUS, COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A base station apparatus including: a reception unit that receives cell information designating a plurality of cells for which reception quality at a mobile station apparatus connected to a serving cell covered by the base station apparatus exceeds a quality; a failure prediction unit that predicts the possibility of occurrence of radio link failure in any of the plurality of cells designated by the cell information; and an execution unit that executes, based on the prediction result of the failure prediction unit, a preparatory procedure with other base station apparatuses respectively covering the plurality of cells designated by the cell information for handover of the mobile station apparatus, when the possibility of occurrence of radio link failure exceeds a reference.12-06-2012
20120309397WIRELESS SYSTEM SELECTION BASED ON DATA CONNECTIVITY - The quality of a wireless data connection is used to identify a suitable radio access network on which a wireless multi-mode device camps.12-06-2012
20090176496METHOD AND SYSTEM FOR TRANSFERRING USER EQUIPMENT IN MOBILE COMMUNICATION SYSTEM - A method and system for transferring user equipment (UE) in a mobile communication system are disclosed. According to the method, a source core (CN) network determines to transfer a UE that it serves and sends a transfer instruction carrying UE transfer restriction information to the UE; an access network receives a transfer request that is sent by the UE according to the restriction information carried in the transfer instruction; the access network selects a target CN entity that is different from the source CN entity for the UE; and the UE is transferred to the target CN entity. The method and system provided by the present invention are applicable to user transferring between CN entities in any communication network. The transferring is initiated by a network side entity, and a more preferable CN entity is selected for the UE to provide a better service.07-09-2009
20090197605TERMINAL, RANDOM ACCESS SIGNAL TRANSMISSION METHOD, AND BASE STATION - A hand-over request reception unit receives a hand-over request from a hand-over source base station. When the hand-over request is received, a terminal count acquisition unit obtains the number of terminals each sending a random access signal. A transmission power offset value calculation unit calculates a transmission power offset value of a random access signal to be sent from a terminal performing a hand-over to the base station, in accordance with the number of terminals obtained by the terminal count acquisition unit. A transmission power offset value transmission unit sends the transmission power offset value through the hand-over source base station to the terminal.08-06-2009
20110263261CELL RESELECTION METHOD AND APPARATUS - A mobile radio communications device is used for use in a cellular network and arranged for reselection to a neighbouring cell as required, the device being a arranged to employ one of a plurality of measurement qualities as part of a cell-reselection procedure, wherein the measurement quantity employed is selected responsive to a characteristic of the neighbouring cell, such that the device can employ different measurement quantities for different neighbouring cells, and to a related method of operation, network device and signalling message structure.10-27-2011
20100029283USER EQUIPMENT AND METHOD USED IN MOBILE COMMUNICATION SYSTEM - User equipment used in a mobile communication system is disclosed that includes a specifying unit specifying a tracking area of a serving cell based on broadcast information, a determination unit determining whether the user equipment is entitled to communicate in the private network, and a transmission unit transmitting a signal requesting to update the tracking area to a base station of the serving cell, in which the determination unit determines whether the specified tracking area is for the private network by checking a common identification which is common to private networks, and the determination unit determines whether the user equipment is entitled to communicate in the private network by determining whether the private network to which the serving cell belongs is the same as or different from a private network in which the user equipment is entitled to communicate.02-04-2010
20110217982METHOD AND APPARATUS FOR CONGESTION CONTROL IN LOCATION UPDATING - A method, an apparatus and a system for congestion control in location updating are provided. The method includes: setting location updating congestion control information according to network circumstances (s09-08-2011
20080318578Cellular communication system, apparatus and method for handover - A method for handover of a wireless subscriber communication unit from a first base station to a second base station in a wireless network is described. The method comprises at the wireless subscriber communication unit receiving a handover command message from the first base station. At the first base station, the method comprises sending a scheduling request message to the second base station, in response to an acknowledgement message sent from the wireless subscriber communication unit. The method further comprises, at the second base station, scheduling, in response to the scheduling request message, at least one uplink scheduling resource (UL-SCH) for the wireless subscriber communication unit to transmit a handover (HO) confirmation message to the second base station; and receiving a handover confirmation message from the wireless subscriber communication unit on the at least one uplink scheduling resource (UL-SCH).12-25-2008
20110306346HANDOVER METHOD - A handover method according to one embodiment of the present invention comprises the steps of receiving the result of a cell measurement for a neighbor cell from a terminal, judging whether the neighbor cell is a near neighbor cell in accordance with the result of the cell measurement, calculating the ratio of the near neighbor cell to the total neighbor cells, and transmitting a command for a handover to a target cell to the terminal if the ratio exceeds the handover threshold value. The handover method of the present invention reduces interference between cells, and efficiently uses radio resources.12-15-2011
20090312024Seamless Handover Between Macro Base Stations and Publicly Accessible Femto Base Stations - The teachings of the present disclosure relate to seamless handover between macro base stations and publicly accessible femto base stations that includes determining the location of each of a plurality of femto base stations in the coverage area of a macro base station. A plurality of groups according to the locations of the particular femto base stations are created. The groups are a subset of the plurality of femto base stations. Finally, identification information for one or more of the groups of femto base stations is transmitted to a mobile station in the coverage area of the macro base station.12-17-2009
20120040679CELLULAR COMMUNICATION SYSTEM, APPARATUS AND METHOD FOR HANDOVER - A method for handover of a wireless subscriber communication unit from a first base station to a second base station in a wireless network is described. The method comprises at the wireless subscriber communication unit receiving a handover command message from the first base station. At the first base station, the method comprises sending a scheduling request message to the second base station, in response to an acknowledgement message sent from the wireless subscriber communication unit. The method further comprises, at the second base station, scheduling, in response to the scheduling request message, at least one uplink scheduling resource (UL-SCH) for the wireless subscriber communication unit to transmit a handover (HO) confirmation message to the second base station; and receiving a handover confirmation message from the wireless subscriber communication unit on the at least one uplink scheduling resource (UL-SCH).02-16-2012
20090215460Base Station Apparatus, User Equipment, Method Used In Mobile Communications System Performing Handover Between Bandwidths - A base station apparatus used in a mobile communication system performing communications using all or a part of a system bandwidth and includes a first receiving part to receive a request signal requesting handover between bandwidths from a user equipment, a first transmission part to transmit an instruction signal to one or more peripheral base stations of a handover transfer destination candidate according to the request signal, a second receiving part to receive a response signal responsive to the instruction signal from one or more peripheral base stations, a second transmission part to transmit an individual control signal, including at least frequency information of a channel measurement signal of the handover transfer destination candidate, to the user equipment according to the response signal. The channel measurement signal is transmitted from the one or more peripheral base stations in a frequency of the frequency information according to the instruction signal.08-27-2009
20120100859Method and Device for Switching Between Base Stations - A method and apparatus for handover between base stations are disclosed. The method includes: a first base station sending handover request messages to neighboring base stations (04-26-2012
20120115485Idle State Interference Mitigation in Wireless Communication Network - A method in a mobile station for ranking cells in order to perform reselection from a serving cell to a second cell is disclosed. The method includes detecting a second cell that the mobile station is not allowed to access, determining resources used for transmission of a signal of the second cell, and applying a reselection bias if the resources used for transmission of the signal of the second cell do not substantially overlap resources used for transmission of a signal of the serving cell.05-10-2012
20120115486METHODS FOR INTEGRATING CELL MEASUREMENT PROCEDURES OF A COMMUNICATION APPARATUS AND COMMUNICATION APPARATUSES UTILIZING THE SAME - A communication apparatus has at least one radio transceiver module, a first subscriber identity card and a second subscriber identity card, where the first subscriber identity card corresponds to a first public land mobile network (PLMN), and the second subscriber identity card corresponds to a second PLMN. The communication apparatus includes processor logic determining whether the first PLMN and the second PLMN are the same, and for suspending a measurement procedure and a cell reselection procedure of one of the first subscriber identity card and the second subscriber identity card to reduce battery power consumption. Processor logic further triggers an unsuspended measurement procedure to tune the radio transceiver module to a plurality of corresponding channel frequency/frequencies of the neighbor cells.05-10-2012
20120021747Reduction of Interruption Time in a Handover - A Mobile Station apparatus for controlling a handover between a Serving Base Station apparatus and a Target Base Station apparatus is described. The Mobile Station includes a Handover Message Receiving device, a Processing device, a Handover device and a timer Value and a Timer device. The Handover Message Receiving device is adapted to detect receiving of a Handover message and wherein the Processing device is adapted upon detecting of the Handover message to calculate a Connection Hold Time value. The Handover device is adapted to send a Handover Indication message to the Serving Base Station apparatus, to start the Timer device with the Connection Hold Time value and to handover the connection from the Serving Base Station apparatus to the Target Base Station apparatus upon expiring of the Timer device.01-26-2012
20120058770PROACTIVE HANDOVER POLICY - An exemplary system and method for determining handovers for a mobile device are disclosed. An exemplary system may generally include a handover server in communication with a communication network configured to support initiated communications from a mobile device. The handover server is configured to detect an initiated communication between the mobile device and a first communication link, determine a value for each of a plurality of factors associated with each of a plurality of available communication links, and assign a desired communication link to the mobile device from the plurality of available communication using a generally simultaneous assessment of the plurality of factors.03-08-2012
20120058771MEASUREMENT CONTROL METHOD, USER EQUIPMENT AND NETWORK-SIDE DEVICE - A measurement control method, a UE, and a network-side device are provided to solve the problem in the prior art that no measurement control solution can ensure the UE to perform a measurement and obtain a measurement result in time, as well as reduce the impact of the measurement on the performance of the UE. The method includes the following steps. The UE receives measurement indication information provided by the network side; and the UE performs a measurement after determining that the UE needs to perform the measurement according to the measurement indication information, which ensures that the UE may not perform the measurement frequently but pertinently, and reduces the impact of the measurement on the performance of the UE to the utmost extent.03-08-2012
20120058769COMMUNICATION METHOD, MANAGEMENT DEVICE, AND MOBILE DEVICE - In a communication system 03-08-2012
20120064898METHOD AND DEVICE FOR SUPPORTING MULTICAST BROADCAST SERVICE - Disclosed are a method and device for supporting Multicast Broadcast Service (MBS). The device for supporting MBS includes a ranging determiner, an MBS determiner, and a message generator. The ranging determiner determines an action state of a mobile station according to a ranging request of the mobile station. The MBS determiner determines whether the mobile station has an MBS flow. The message generator generates a ranging request message on the basis of the action state and MBS flow. When the mobile station has the MBS flow, the message generator adds an MBS indication bit, representing “the mobile station is an MBS mobile station”, into a ranging purpose indication TLV of the ranging request message.03-15-2012
20120157105DETECTING CELL SPOTS - A method of detecting a cell spot of a first base station (06-21-2012
20120208541MOBILITY PROCEDURES IN WIRELESS NETWORKS WITH DISTRIBUTED REMOTE RADIO HEADS - Wireless networks may include remote radio heads (RRHs) for extending the coverage of a macro cell. The macro cell may be connected to the RRHs, for example, by optical fiber, and there may be negligible latency between the macro cell and the RRHs. As a user equipment (UE) moves within the macro cell, or between other macro cells, mobility procedures followed by the UE may vary based on the release of the UE (e.g., Rel-8/9, Rel-10, or Rel-11 and beyond). The macro cell may handle all the scheduling within the cell, for itself and the RRHs.08-16-2012
20120157104PROCESS FOR DETECTING TRANSMITTED SYMBOLS BASED ON A TERNARY ALPHABET AND CORRESPONDING RECEIVER - A detection process of a communication channel based on a ternary alphabet is provided wherein the channel transmitting a signal transports the same transmitted symbol for N sequential slots within one Time Transmission Interval (TTI). The detection process comprises a mechanism that eliminates unwanted signal contributions and isolates noise contributions. The detection process estimates a noise variance and sums consecutive received signals of a same Transmission Time Interval (TTI) in order to isolate a transmitted signal portion. The detection further obtains a chi squared distribution, which is used to determine a threshold that is proportional to the estimated noise variance. The threshold is then used to detect the communication channel.06-21-2012
20120157103Method and Arrangement In A Radio Communications System for Supporting DTX - A method in a first base station for supporting DTX is provided. The first base station serves a first cell being in an active mode. The first base station communicates with a user equipment within the first cell. The first base station is comprised in a radio communications system further comprising the user equipment and a second base station serving a second cell being in a non observable mode. The first base station sends (06-21-2012
20130183980Method for Acquiring Information of Home Node B, Method for Balancing Load, and Apparatuses Therefor - The present invention discloses a method for acquiring information of a home NodeB, a method for balancing load, and implementation apparatuses thereof, which are used to solve the problem how to guide a UE to move to an appropriate home NodeB when a macro cell performs load balancing. In the present invention, information of a target NodeB is acquired actively through a macro NodeB, and according to an access type of the target NodeB, subscribers of the macro NodeB are timely balanced to the home NodeB which can provide services, thereby reducing a call drop rate resulted from blind handover. Since measurement information of the UE is fully considered, success rate of balancing handover is enhanced, and the object of performing effective load balancing in a home NodeB environment is achieved.07-18-2013
20110065439Method for Use of Azimuth and Bearing Data to Select a Serving Sector for a Mobile Station - A method for selecting a wireless coverage sector to serve a mobile station, such as in response to a handoff request that designates a sector-identifier that represents two or more possible sectors. A serving radio access network (RAN) may identify potential sectors in the region and may then select the sector whose azimuth is closest to the geographic bearing of the mobile station from the sector's base station. Further, in the event of a tie between two or more sectors or in other circumstances, the RAN may also take into consideration how close the mobile station is to various base stations, such as selecting the sector to whose base station the mobile station is closest. In a system that uses neighbor lists to govern handoff, the invention can help to facilitate handoff in a scenario where a mobile station requests handoff to a sector not listed in the mobile station's neighbor list.03-17-2011
20110105126Terminal initiated intrasatellite antenna handover method - A handover method provides intrasatellite transmitter handover detection and decision using an unbiased weighted Signal Noise Ratio (SNR) estimator based on forgetting factors for SNR monitoring, and a threshold delay is introduced to ensure the reliability of handover decision to prevent undesirable handovers during beam switching.05-05-2011
20120122458Method, Apparatus And Computer Program Product For Priority Based Cell Reselection In A Multi-RAT Environment - A method, apparatus and computer program product are therefore provided that may enable a network sending broadcast and/or dedicated priorities to a mobile terminal to also include priorities with respect to a RAT that does not support the priority algorithm. As such, for example, priority parameters for a legacy network that does not support the priority algorithm may be supplied to a mobile terminal to enable the mobile terminal to make cell reselection decisions without running two different cell reselection algorithms in parallel (e.g., a ranking based algorithm and a priority based algorithm). The provided method includes the steps of receiving an indication of a plurality candidate cells with respect to said cell reselection of a mobile terminal; assigning, toward each of said plurality of candidate cells, a priority, wherein at least one candidate cell of the plurality of candidate cells does not support priority based cell reselection; and providing said priorities to said mobile terminal.05-17-2012
20120122459METHOD, APPARATUS, AND SYSTEM FOR VOICE CALL FALLBACK TO CIRCUIT SWITCHED DOMAIN - A method for voice call fallback to a circuit switched (CS) domain disclosed in the present invention includes: receiving a Service Request message from a calling user equipment (UE), where the Service Request message includes called number information of a voice call in a CS domain, instructing an evolved NodeB (eNB) to initiate circuit switched fallback (CSFB) handover; receiving a Handover Request message from the eNB, where the Handover Request message includes information required for CS handover, selecting a mobile switching center (MSC) and sending a packet switched (PS) to CS Handover Request message to the MSC, where the PS to CS Handover Request message carries information required for the CS handover and a called number so that the MSC calls a called UE. The corresponding apparatuses and systems are also disclosed. The technical solution of the present invention can reduce the connection delay.05-17-2012
20120315910System Information Cache - For each of a plurality of received system information SI a cache entry is stored in a SI cache of a user equipment UE, each including at least some of the received SI, a timestamp of when the SI was first stored, and at least some of the cache entries also have relevance data relating the respective cache entry to one or more other cache entries. While the UE is in a state such as a CELL-FACH state (no dedicated physical channel allocated to the UE), a cache entry is selected for at least one neighbor cell, and that cache entry is related by its relevance data to the cache entry of the serving cell or determined from its timestamp to be in close proximity to the serving cell. The UE then identifies the selected neighbor cell in an uplink message as a suitable candidate for multipoint communications with the UE.12-13-2012
20120129533HANDOFF OF A MULTIMEDIA CALL SESSION USING BACKGROUND NETWORK SCANNING - A method and system supporting handoff of a multimedia call session using background network scanning is disclosed. A mobile multimedia handset may engage in the exchange of a multimedia information stream via a first wireless network, and may sniff a portion of radio frequency spectrum for a second wireless network. Information about available services and network quality of service for the second network may be received by querying the second wireless network or from advertising by the second wireless network. Hand-off between the two networks may be based upon the results of the comparison and one or more user-defined criteria, and the handoff may be synchronized according to predefined events in the stream of multimedia information.05-24-2012
20120129532METHOD AND SYSTEM FOR SUPPORTING HANDOVER BETWEEN MACRO BASE STATION AND VEHICULAR BASE STATION - Provided are a method and system for handing over a mobile terminal between a macro base station and a vehicular base station to secure a communication service of a movable mobile terminal in a wireless communication system supporting a vehicular base station such as a vehicular relay station. The mobile terminal may be handed over by selecting a network or a vehicular base station suitable to a mobility and type of communication.05-24-2012
20120214492Relocation of Mobility Anchor for Nomadic Subscribers - A method, a mobility node 08-23-2012
20120214493COMMUNICATION METHOD IN A MOBILE COMMUNICATION SYSTEM AND A SYSTEM THEREOF - The present disclosure relates to a communication method between a terminal and a network during an inter PLMN (public land mobile network) handover in a mobile communication network that shares an E-UTRAN (evolved universal terrestrial radio access network), and a mobile communication system thereof According to the present invention, the terminal performs E-UTRAN registration through a base station (eNB) and an MME (MME), updates a routing area, activates ISR (idle state signaling reduction), receives a handover command to the previous PLMN or another PLMN and transmits a location update request message to the MME while the handover is being executed. As such, a communication disconnect or any authentication or security failure during the inter PLMN handover of the terminal can be avoided.08-23-2012
20100062774HANDOVER METHOD AND RADIO BASE STATION - A handover method according to the present invention includes the steps of: forwarding, at a handover-source radio base station (eNB), user data (A) for a mobile station (UE) to a handover-target radio base station (eNB) when it is determined that a handover processing is to be performed, the user data (A) being stored in the handover-source radio base station (eNB); activating, at the handover-target radio base station, a predetermined timer when transmitting a path switch request to a path control apparatus, and storing second user data for the mobile station received from the path control apparatus until the predetermined timer expires; and forwarding, at the handover-target radio base station, the stored second user data to the mobile station after the predetermined timer expires.03-11-2010
20120178457APPARATUSES AND METHODS FOR HANDLING MOBILITY MANAGEMENT (MM) BACK-OFF TIMERS - A mobile communication device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a first service network and a second service network. The controller module transmits a first request message for a Mobility Management (MM) procedure to the first service network, and receives a first rejection message with an MM back-off timer corresponding to the first request message from the first service network via the wireless module. Also, the controller module starts the MM back-off timer for the first service network in response to the first rejection message, and transmits a second request message for the MM procedure to the second service network via the wireless module.07-12-2012
20100009683METHODS AND SYSTEMS FOR CELL RE-PLANNING TO OBSCURE NETWORK TOPOLOGIES - Methods and systems for obscuring network topologies are described. Cell re-planning techniques can be used to modify cell identities to obscure a relationship between nodes in a communication system and their geographical location. One or more algorithms can be used to operate on, e.g., cell plan lists, cell neighbor lists and/or cell identities.01-14-2010
20100285807HANDOVER MECHANISM FOR SENSOR NETWORKS - The present invention relates to methods and access devices for collecting data from a plurality of sensors (11-11-2010
20080305799HETEROGENEOUS NETWORK HANDOVER-SUPPORT MECHANISM - Methods and mechanisms enhance heterogeneous media independent handover (MIH) between different link layer technologies. Embodiments include using an MIH proxy entity, MIH capable network controller, and an MIH server. Enhancements are made to the query phase, preparation phase, execution phase and completion phase by including required information in MIH messages.12-11-2008
20120220301Interface Authorization Scheme - An authorization scheme controls whether an interface is established between communication nodes. Such a scheme may be used, for example, to determine whether to establish a direct interface (e.g., an X08-30-2012
20120220302MOBILE STATION, NETWORK, AND HANDOVER CONTROL METHOD - In a parameter storage device, an offset value corresponding to a moving state (moving speed) and a serving frequency are stored. A parameter identifier reads from the parameter storage device an offset value corresponding to a serving frequency and a moving state. A measuring unit measures a radio communication quality of an inter-frequency cell. A measurement controller adds the offset value to the radio communication quality, to generate control information. The control information is transmitted via a transmitter to a network.08-30-2012
20120315911COMMUNICATION SYSTEM, FEMTO CELL THEREOF, AND CLUSTERING AND HANDOVER METHOD OF THE SAME - A communication system, femto cell, and clustering and handover method of the same are provided. The method includes storing identity information and customer information for a plurality of femto base stations, generating, when location information of the corresponding femto base stations are received, at least one cluster including at least one of the femto base stations according to the customer information and location information, sharing the identity information of the corresponding femto base station in the cluster. The method is capable of supporting handover between femto base stations so as to secure reliable communication service connectivity for the terminal on the move.12-13-2012
20120315912APPARATUS AND METHOD FOR HANDOVER BETWEEN A HETEROGENEOUS COMMUNICATION SYSTEM AND A BROADBAND WIRELESS COMMUNICATION SYSTEM - An operating method, a base station, and terminal of a cell of a first communication system for a handover between the first communication system and a second communication system are provided. The method includes, when a terminal initiates a handover between the first communication system and the second communication system, transmitting, by the base station, a message, requesting to measure a signal level of a downlink, to the terminal, when a signal level measured by the terminal falls below a preset threshold, requesting, by the base station, a handover to the second communication system over a core network, receiving, by the base station, a message, including radio channel parameters the that is required when the terminal accesses to the second communication system, from the second communication system, and forwarding, by the base station, the message, including the radio channel parameters of the second communication system, to the terminal.12-13-2012
20120083277MOBILE COMMUNICATION METHOD, MOBILE EXCHANGE STATION, RADIO BASE STATION AND MOBILE STATION - A mobile communication method according to the present invention includes: transmitting, from a mobile station (04-05-2012
20120083276METHOD, TERMINAL, AND SYSTEM FOR CELL RESELECTION - A terminal and system are disclosed. The terminal includes an obtaining unit and a processing unit. The obtaining unit is configured to obtain a dedicated priority list and a valid time of the dedicated priority list from a Long Term Evolution (LTE) system. When the terminal camps on a cell of a non-LTE system, the processing unit is configured to perform cell reselection according to the dedicated priority list before the valid time expires, and perform cell reselection according to a public priority list after the valid time expires, where the public priority list is obtained from one of the LTE system and the non-LTE system. According to an embodiment of the invention, the terminal performs cell reselection by using the dedicated priority list obtained from the LTE system so as to free the non-LTE system from establishing the dedicated priority list.04-05-2012
20120258718Femtocell Base Station - There is provided a method of operating a femtocell base station comprising, following a hand-in or reselection of the femtocell base station by a mobile device, determining a reason for the hand-in or reselection by the mobile device and adjusting a maximum permitted transmission power of the femtocell base station according to the determined reason. A femtocell base station for use in a communication network is also provided that comprises a processor configured to perform the above method following hand-in or reselection of the femtocell base station.10-11-2012
20120264434Method and Corresponding Apparatus for Coordinating Executions of Intra-Radio Handover - The present invention proposes a method and corresponding apparatus for coordinating the executions of intra-radio handover, wherein the method comprising determining an intra-radio handover is to be executed on a communication device; and coordinating the execution of the intra-radio handover to determine whether to postpone the execution of the intra-radio handover, so that there is at least one active radio on the communication device.10-18-2012
20120190371METHOD AND SYSTEM FOR MANAGING CONTEXT OF MOBILE STATION - A method for managing the context of the mobile station (MS) is applied in an MS handover process of a wireless access network. The function entity identification information of acting on the MS is carried in the context of the MS, and the MS addresses based on the function entity identification information and handovers to the target base station. By adding the identifications of various logic entities acting on the MS to the context information of the MS, the correct addressing of these logic entities is ensured during the handover. The different local policies of the source and destination ends are considered during conveying the context of the MS, in which the destination end may update certain context of the MS according to its own local policy during conveying; and the hierarchy of the context conveying of the MS during the handover is also considered.07-26-2012
20120190370RADIO BASE STATION DEVICE, HANDOVER CONTROL SYSTEM, AND HANDOVER CONTROL METHOD - A radio cell station includes a call connection control section that controls a call connection of a radio personal station PS; and a position registration request section that requests, of a management device ME, a position registration. When a request for handover from a radio cell station CS07-26-2012
20120264435Apparatus and Method for Cell Reselection in a Radio Access Network - A method for cell reselection from a serving cell to another cell in a radio access network covering a geographical area divided into a plurality of cells, the method comprising: attempting to reselect to a first other cell with a higher rank value than the serving cell; setting up a channel on the first other cell and initiating a completion period; conditional on the completion period expiring before the first other cell is identified as being a suitable cell, receiving cell measurements for cells and creating a cell ranking list of the cells based on rank values of the cells; conditional on a second other cell having a higher rank value than the serving cell or first other cell, attempting to reselect to the second other cell.10-18-2012
20090017824Handover method and apparatus for multi-mode mobile station - An improved handover method and apparatus for an Unlicensed Mobile Access (UMA) technology-enabled multi-mode mobile station is provided. A handover method of the present invention includes determining a handover during an active call session with an unlicensed wireless access network; sending a handover request message to the unlicensed wireless access network; and re-establishing, if no replay is received from the unlicensed wireless access network in a predetermined time in response to the handover request message, a connection to a licensed wireless access network for the active call session.01-15-2009
20090017823TECHNIQUE FOR CONTROLLING HANDOVERS WITHIN A MULTI-RADIO WIRELESS COMMUNICATION SYSTEM - A technique is provided for use by a Multi-Radio Management Resource (MRRM) component of a multi-radio wireless communication system for controlling the handover of a mobile terminal between different radio access technologies (RAT). In one example, all suitable RATs having coverage areas currently covering the location of a mobile terminal are identified. The performance gain that might be achieved via a handover to one of the other RATs is then determined by the MRRM based on various performance gain factors. Handover costs that will be incurred as a result of the handover are also explicitly calculated. Then, a cost-adjusted gain is determined by the MRRM based on the performance gain and the handover costs. A handover is only triggered by the MRRM if the cost-adjusted gain exceeds a minimum threshold. The speed and trajectory of the mobile terminal may also be considered.01-15-2009
20110124340RADIO PROBLEM DETECTION ASSISTED RESCUE HANDOVER - Rescue handovers of user equipment, for example, may be accomplished by a method that includes detecting that a downlink radio link cannot be reliably received. The method can also include initiating sending a report that the downlink radio link cannot be reliably received when the detecting indicates that the downlink radio link cannot be reliably received. The method can further include initiating performing a handover upon obtaining handover instructions responsive to the report.05-26-2011
20120231797Method and Apparatus - A system includes first and second base stations; and a plurality of relay nodes, each of said relay nodes connected to the first base station, each of said relay nodes being connected to at least one other relay node, whereby at least one relay node is configured to at least one of receive and send information for another of said relays nodes; wherein when at least one of the plurality of relay nodes is handed over to a second base station the at least one relay node is configured to receive and/or send information via another of the relay nodes connected to the first base station.09-13-2012
20120231798MOBILE TERMINAL AND CELL RESELECTION METHOD OF MOBILE TERMINAL - The present invention provides a cell reselection method of a mobile terminal. The method comprises the following steps: setting a reselection parameter of a mobile terminal from a GSM cell to a WCDMA cell; judging whether to initiate a reselection toward the WCDMA cell based on the comparison between a signal measurement value of the WCDMA cell and the parameter. The present invention further provides a mobile terminal. The present invention solves the problem that the mobile terminal, which is in the WCDMA/GSM dual mode and resides in the GSM cell, cannot reside in the WCDMA cell while the WCDMA network can be used actually, improves the capability and success rate of the reselection toward the WCDMA network of the mobile terminal, and enables the user to have more opportunities to enjoy rich and colourful 3G services.09-13-2012
20100323703RRC SIGNALLING FOR FAST HS-DSCH SERVING CELL CHANGE - When a Universal Terrestrial Radio Access Network (UTRAN) receives an indication on Layer 3 (L3) (an L1/L2 indication is also possible) from the User Equipment (UE) that it is switching the High Speed-Data Shared Channel (HS-DSCH) reception to another cell in the active set (AS), the UTRAN sends a reconfiguration message to the UE via the target cell using a pre-configured configuration that UE has taken into use. The message can only include an indication that the pre-defined configuration can be used further by the UE or that a complete new configuration is to be used, e.g., using new HARQ info or even a hard handover (HHO) to another frequency. After receiving the configuration message, the UE responds with a normal reconfiguration complete message.12-23-2010
20080299978Extending RF coverage areas for cellular telephones using base stations with ultra-wide band signaling - An exemplary method provides cellular communications for handsets capable of communications using a conventional RF communication mode and a second ultra-wide band RF communication mode. An RF voice communication link is established between the handset and a base station using the conventional communication mode. A decrease in signal strength of the RF link is detected to be at a level at which a hand-off should be made. No other base stations utilizing the conventional communication mode have an acceptable signal strength level with the handset to support a hand-off from the base station. Another base station using the ultra-wide band second communication mode has an acceptable signal strength level with the handset to support a hand-off from the current base station. A hand-off of the voice communication link with the handset is made from the current base station to the other base station, where the handset changes from using the conventional RF communication mode to the ultra-wide band RF communication mode.12-04-2008
20120264433COMMUNICATION BETWEEN A USER EQUIPMENT AND A BASE STATION - Method, multi-mode base station and computer program product for controlling communication between a user equipment (UE) and the multi-mode base station, the multi-mode base station being arranged to operate as a plurality of cells, the plurality of cells comprising a first cell using a first radio access technology and a second cell using a second radio access technology. The UE is operating in the first cell. Operating conditions of the first and second cells are monitored, and based on the monitored operating conditions of the first and second cells, it is determined that making a handover of the UE to the second cell would provide a performance improvement. In response to determining that making a handover of the UE to the second cell would provide a performance improvement, a handover is made of the UE to the second cell, thereby providing the performance improvement.10-18-2012
20120322452HANDOVER CONTROL - A method of identifying femto base station handover targets for user equipment in a wireless telecommunications network, a femto gateway operable to execute that method and a computer program product. The method comprises the steps of: receiving an indication of user equipment entry into a geographical area served by a femto base station; storing user equipment entry information, generated from said received indication of user equipment entry; receiving an indicator from user equipment identifying a detected femto base station as a handover target; and correlating said indicator against said user equipment entry information to identify those femto base stations having entered user equipment as handover targets.12-20-2012
20100203892SYSTEM AND METHOD FOR INTERFERENCE BEACON TRANSMISSION - Various systems and methods for interference beacon transmission are disclosed. In one embodiment, an apparatus for initiating cell reselection in a wireless communication device, such as a HNB, comprises a processor configured to determine a first frequency at which one or more wireless communication devices communicate with a first cell and a transceiver configured to transmit an interference beacon at the first frequency configured to at least partially interfere with communications at the first frequency and initiate a cell reselection process by at least one of the wireless communication devices.08-12-2010
20120276907METHOD AND DEVICE FOR OBTAINING CANDIDATE INFORMATION - A method, computer readable medium and mobile device for operating using more than one Radio Access Technology (RAT) are provided. When the mobile device is operating in a serving cell of a first RAT, it obtains, through at least one of wireless access radios in the mobile device, a first set of candidate information from a message transmitted for the serving cell. It also obtains, through at least one of the wireless access radios, a second set of candidate information from a message transmitted for a neighbour cell of the serving cell. The mobile device considers the candidate information from the first set and the candidate information from the second set for reselection by the mobile device.11-01-2012
20120276906METHODS AND ARRANGEMENTS FOR CELL IDENTIFICATION IN A RADIO NETWORK - A method in a radio network node for identifying a candidate cell for handover of a user equipment is provided. The radio network node receives, from the user equipment, a first cell identifier associated with the candidate cell. The radio network node signals a cell identification request to at least one base station serving a cell using the first cell identifier. The cell identification request comprises a user equipment identifier associated with the user equipment (102), and requests any cell wherein the user equipment associated with the user equipment identifier can be detected. The radio network node receives a cell identification response comprising a second cell identifier associated with a detecting cell, 10 served by a detecting base station, wherein the user equipment associated with the user equipment identifier is detected. The radio network node then identifies the candidate cell based on the received second cell identifier.11-01-2012
20120276908SYNCHRONIZATION SYSTEM AND SYNCHRONIZING METHOD FOR PLURALITY OF BASE STATIONS AND MOBILE STATION IN A REVERSE LINK WIRELESS TRANSMISSION - There is provided a wireless communication system which can synchronize a mobile station with a destination base station in response to the mobile station determining to switch base stations. Each base station generates synchronization information to synchronize the mobile station with the base station from a reverse pilot signal received from the mobile station, generates reverse propagation quality information from the reverse pilot signal, and generates and transmits a control signal including the synchronization information and the reverse propagation quality information. A mobile station generates and transmits a reverse pilot signal, receives a signal including the control signal from each of the base stations.11-01-2012
20120276909Method and User Equipment for Cell Selection of Heterogeneous Network - Embodiments of the present invention provide a method and a user equipment for cell selection of a heterogeneous network. The UE selects, a cell with a highest signal measurement value in a carrier frequency synchronizes to the cell, and receives broadcast information of the cell. If the cell is a macro cell, the broadcast information carries an extended indicator bit and the extended indicator bit is used to identify whether a low-power cell exists in the coverage of the macro cell. If the extended indicator bit identifies that the low-power cell exists in the coverage of the macro cell, the low-power cell in the macro cell is searched for, and if a low-power cell in the macro cell satisfies an S rule, the UE selects the lower-power cell as a serving cell and camps.11-01-2012
20100234029MOBILE COMMUNICATION METHOD, MOBILE EXCHANGE STATION, RADIO BASE STATION AND MOBILE STATION - A mobile communication method according to the present invention includes: transmitting, from a mobile station (09-16-2010
20100234028METHOD AND APPARATUS FOR DISTINGUISHING CELLS WITH THE SAME PHYSICAL CELL IDENTIFIER09-16-2010
20120088509MOBILE TERMINAL AND MOBILE STATE REPORTING METHOD THEREOF - The present invention discloses a method for reporting a mobility state of a mobile terminal comprising: a User Equipment (UE) evaluating its own mobility state under a Radio Resource Control (RRC) connection state based on a first evaluation parameter sent by an evolved Node B (eNodeB), and obtaining an evaluated first determination result; and the UE reporting the first determination result to the eNodeB through a measurement report message in the RRC connection state. The present invention also discloses a mobile terminal configured to report determination result of its own mobility state to an eNodeB such that the eNodeB can adopt different pertinent processing strategies for UEs in different mobility states, thereby bringing convenience to practical application.04-12-2012
20120329461HANDOVER AND NEIGHBOR MANAGEMENT FOR MOBILE RELAY NODES - Some embodiments provide a mobile relay node, RN, (12-27-2012
20120329463MOBILE COMMUNICATION SYSTEM, CELL SELECTION METHOD, BASE STATION APPARATUS, AND MOBILE STATION APPARATUS - A mobile communication system includes plural base stations forming cells and a mobile station disposed in one of the cells and wirelessly communicating with one of the plural base stations. One of the plural base stations includes a cell group information broadcast unit broadcasting plural cell group information items which are information indicating a relationship between moving directions and cell groups, and the mobile station includes a cell group information selection unit selecting a cell group information item corresponding to an estimated moving direction of the mobile station out of the plural cell group information items broadcast by the one of the plural base stations, and a standby cell selection unit selecting, as a new standby cell, a cell having a receiving state satisfying a desired condition from among cells included in the selected cell group information item.12-27-2012
20120329462APPARATUS AND METHODS FOR FACILITATING CELL RESELECTION FOR HIGHER PRIORITY LAYERS - User Equipments (UEs) can be adapted to enter into a lower RRC state from a higher RRC state, and search for one or more layers of higher priority within a predetermined period of time upon entering into the lower RRC state. According to at least one aspect, this search for one or more layers of higher priority may be performed irrespective of RF quality of a current serving cell. According to at least another aspect, this search for one or more layers of higher priority may be conducted within the predetermined period of time if a wait period has elapsed since the UE camped on the current serving cell. If the wait period has not elapsed since camping on the current serving cell, the search for one or more layers of higher priority may be performed within the predetermined period of time following a duration of the wait period.12-27-2012
20120100858METHOD, COMMUNICATION APPARATUS AND COMMUNICATION SYSTEM FOR HANDOVER PROCESSING - Embodiments of the present invention disclose a method, a communication apparatus and a communication system for handover processing. The method for handover processing includes: when a terminal having a capability of supporting an optimized handover and a non-optimized handover needs to be handed over from a first network to a second network, determining whether the terminal is incapable of performing an optimized handover, if it is determined that the terminal is incapable of performing the optimized handover, performing a non-optimized handover. The embodiments of the present invention further provide a communication apparatus and a communication system accordingly. The technical solutions enable a handover between different networks to be implemented in more scenarios.04-26-2012
20130012210SUPPORT FOR MULTI-GROUP FREQUENCY DIVISION DUPLEX WIRELESS NETWORK - Various example embodiments are disclosed herein. According to an example embodiment, a method may include receiving, at a serving base station (BS) in a wireless network from a mobile station (MS), group preference information for the MS for each of one or more candidate BSs; obtaining, by the serving BS based on the group preference information, a group assignment for the MS from each of the one or more candidate BSs; and sending by the serving BS to the MS the group assignment from each of the candidate BSs.01-10-2013
20100130209Methods for facilitating user control of handoffs - To address the need to have new techniques that are able to improve handoff decision-making, the network may employ a method such as that depicted in diagram 05-27-2010
20120149376MOBILE STATION INITIATED LOAD BALANCING IN WIRELESS COMMUNICATION NETWORKS - Techniques for load balancing across different access networks based on procedures initiated by a wireless terminal or mobile station and examples of using load balancing within the same access network to hand off a mobile station from one base station to another based on procedures initiated by the mobile station.06-14-2012
20130017834Method and user equipment for reporting handover scenario judgment parameter and base station for handover scenario judgmentAANM Han; LifengAACI ShenzhenAACO CNAAGP Han; Lifeng Shenzhen CNAANM He; FengAACI ShenzhenAACO CNAAGP He; Feng Shenzhen CN - The disclosure provides a method and user equipment for reporting a handover scenario judgment parameter and a base station for a handover scenario judgment; the method includes: an uplink message transmitted by the User Equipment (UE) includes an Evolved Cell Global Identifier (ECGI) so that a network side performs a handover scenario judgment based on the ECGI, wherein the uplink message is a message that includes Radio Link Failure (RLF)-related measurement information, or the uplink message is a message that includes an indication of RLF-related measurement information. Therefore, the disclosure enables an accurate handover scenario judgment, thus avoiding the problem in the related art that the error rate of a handover scenario judgment is high.01-17-2013
20110151876USER EQUIPMENT, BASE STATION DEVICE, AND MOBILE COMMUNICATION METHOD - User equipment 06-23-2011
20080233962TECHNIQUES FOR ALWAYS ON ALWAYS CONNECTED OPERATION OF MOBILE PLATFORMS USING NETWORK INTERFACE CARDS - An embodiment of the present invention provides an apparatus, comprising a network interface (NIC) card operable in communication with a mobile platform to monitor network traffic and perform filtering to enable decreased system resource use in said mobile platform when in an Always On Always Connected (AOAC) state.09-25-2008
20080227458METHOD AND SYSTEM FOR MANAGING CONTEXT OF MOBILE STATION - A method for managing the context of the mobile station (MS) is applied in an MS handover process of a wireless access network. The function entity identification information of acting on the MS is carried in the context of the MS, and the MS addresses based on the function entity identification information and handovers to the target base station. By adding the identifications of various logic entities acting on the MS to the context information of the MS, the correct addressing of these logic entities is ensured during the handover. The different local policies of the source and destination ends are considered during conveying the context of the MS, in which the destination end may update certain context of the MS according to its own local policy during conveying; and the hierarchy of the context conveying of the MS during the handover is also considered.09-18-2008
20080227457METHOD AND SYSTEM FOR IMPLEMENTING TERMINAL HANDOVER - A method and system for implementing terminal handover, the method include: receiving, by a serving handover (HO) function unit, a handover instruction from a network element on network; and implementing, by the serving HO function unit, the handover for the terminal in accordance with the handover instruction, and handing over the terminal to a target base station (BS). With the disclosure, the terminal handover flow can be triggered by the network, and the problems of the inefficient terminal handover or the high network resource consumption and the handover delay in the prior art can be overcomed.09-18-2008
20130203421Circuit and method for implementing FFT/IFFT - The disclosed refers to a method for testing a cell reselection capability of a terminal. The method comprises: adjusting a terminal to camp on a current cell and to enter a high-speed or intermediate-speed mobile mode (08-08-2013
20080220784METHOD AND APPARATUS FOR ADJUSTING A RESELECTION TIMER AND CELL RANKING CRITERIA, AND REPORTING DEGRADED SIGNAL MEASUREMENT OF A SERVING CELL - Various methods for adjusting a reselection timer and cell ranking criteria are disclosed. The ranking criteria of a serving or neighbor cell, or a reselection timer in a wireless transmit/receive unit (WTRU), is adjusted based on how a serving cell signal measurement, (e.g., signal strength, signal quality), compares to a plurality of thresholds over a time interval. In another method, cell ranking criteria is adjusted based on a hysteresis value and a scaling factor when a maximum number of reselections is exceeded and a high mobility factor is detected. Furthermore, a method of reporting cell signal measurements is disclosed, whereby a time-to-trigger time (TTT) interval is started when the neighbor cell signal measurement rises above a reporting range threshold. If the serving cell signal measurement falls below a serving cell threshold, the TTT interval is adjusted and thereby a measurement report is transmitted during the TTT interval.09-11-2008
20130143572METHOD AND SYSTEM FOR HANDOVER OF TERMINAL - In a radio communication system of hierarchical cell structure in which macrocells provided by a macro base station and femto cells provided by a femto base station are overlapped on each other, a method and a system for handing over a terminal are provided. To be specific, if load of a serving base station increase or decreases more than a predetermined extent, a method and a system adaptively adjust the handover between macro base stations, between femto base station, or between femto base station and macro base station.06-06-2013
20130178216RADIO MEASUREMENT COLLECTION METHOD AND RADIO TERMINAL - A radio terminal in a connected state performs a measurement of a radio environment according to a measurement configuration set by a radio base station, and activates a timer correspond to a predetermined time. The radio terminal reports a measurement result when the measurement result becomes possible to be reported before the timer expires, and stores the measurement result together with a time stamp when the timer expired in a case where the measurement result does not become possible to be reported before the timer expires.07-11-2013
20130171993BASE STATION AND METHOD - A base station is disclosed. The base station includes: a reconnection setting information generation unit configured, in a case where handover is requested from a first base station, after a reconnection request signal is received from a mobile apparatus, to generate reconnection setting information to be used for specifying the mobile apparatus; a transmission unit configured to transmit a reconnection request signal to the first base station; a receiving unit configured to receive reconnection setting information to be used for specifying the mobile apparatus from a second base station that is a destination of handover of the mobile apparatus after the second base station receives a reconnection request signal from the mobile apparatus; a reconnection setting information holding unit configured to hold the reconnection setting information; and a connection processing unit configured to perform reconnection processing with the mobile apparatus by using the reconnection setting information held in the reconnection setting information holding unit in accordance with a reconnection request signal from the mobile apparatus after initial connection processing between the second base station and the mobile apparatus.07-04-2013
20130137437MOBILE UNIT HAVING INTERNET PROTOCOL FUNCTIONALITY - A mobile unit includes a handset and a removable storage module having a unique storage module identity, for storing information specific to a user, including an Internet Protocol (IP) address. Additional information regarding a Public Land Mobile Network (PLMN) and International Mobile Subscriber Identity (IMSI) which uniquely identifies the subscriber is also stored in the removable storage module. Upon successfully camping on a cell of a mobile network, the IP address is forwarded to an IP-based network capable of communicating with the mobile unit. In an alternate embodiment, the mobile unit has multi-network capabilities which allow it to communicate with an IP-based network and a cellular network at the same time. In another embodiment, existing cellular network services for the mobile unit having multi-network capabilities are routed through the IP-based network.05-30-2013
20130115956Location Based Radio Access System Selection - To improve use of available radio resources and to increase end user perception of delivered radio services according to the present invention there is provided a method of operating a radio access control station in a wireless communication environment supporting at least two radio access technologies (GSM, WCDMA, LTE, WLAN) for radio communication with a mobile station. Here, a preferred radio access system is determined on the basis of a radio coverage map (05-09-2013
20130115955Method for Obtaining Neighbor Cell Information, and Network - The present invention discloses a method for obtaining information of a neighbor cell. The method includes: a donor base station carrying cell attribute information into an X2 interface signaling sent to a relay node; wherein, the cell attribute information includes: indication information about whether each cell is administered by the relay node which is administered by the donor base station, or information about whether the other base station to which the cell belongs has an X2 interface with the donor base station; and after the relay node receives the cell attribute information, updating corresponding cell attribute. The present invention also discloses a mobile communication network. The present invention can make the base station or the relay node select the handover target cell and select the handover type for the user equipment reasonably.05-09-2013
20130115954METHOD AND APPARATUS FOR HANDOVER USING PREDICTED VEHICULAR LOCATIONS - A method, apparatus and computer program product are therefore provided according to an example embodiment to distribute and utilize location information received from one or more networks to determine handover timing and target cell selection for a mobile terminal. A method also includes determining a predicted future mobile terminal location based on the location information for the mobile terminal. A method also includes determining at least one network entity with a serving area that encompasses the predicted future mobile terminal location. A method also includes causing the at least one network entity to receive handover instructions by causing the predicted future mobile terminal location and information regarding the at least one network entity to be transmitted to a network management node.05-09-2013
20130095835Method for Determining a Base Station to Hand Over a Cellular Device To - Embodiments of this disclosure include methods in which a core network controller determines which femtocell base station to handover a cellular device to. Methods include comparing a cell parameter difference provided by a base station with a cell parameter difference provided by the cellular device. The cell parameter difference provided by the base station is the cell parameter difference between the base station and each neighboring base station. The cell parameter difference provided by the cellular device is the cell parameter difference between the base station through which the cellular device is currently associated with to the core network and each neighboring base station. The core network controller compares the cell parameter difference provided by the cellular device with the cell parameter difference provided by the base station. The core network hands the cellular device to the base station when the cell parameter difference provided by each are substantially equivalent.04-18-2013
20130115958METHOD, EQUIPMENT AND SYSTEM FOR HANDING OVER CELL IN COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION - A method, an equipment and a system for handing over a cell in a communication system supporting carrier aggregation. The method includes: when a terminal in the communication system moves to the edge of the currently serving cell, the terminal selects one or more neighbor cells from one or more neighbor cells as measurement objects according to the carrier aggregation manner of the one or more neighbor cells; the terminal measures the capabilities of the measurement objects, and obtains one or more measurement results; and the terminal sends a source base station which currently serving the terminal one or more measurement results as capability measurement reports of the one or more neighbor cells. Also provided are an equipment for handing over a cell in a communication system supporting carrier aggregation, a terminal including the said equipment and a communication system including the said terminal.05-09-2013
20130115957MOBILE COMMUNICATION METHOD, MOBILITY MANAGEMENT APPARATUS AND RADIO BASE STATION - To enable a UE (05-09-2013
20130203420MOBILE COMMUNICATION METHOD AND MOBILE STATION - A mobile communication method according to the present invention includes a step A of acquiring, by a mobile station UE in a standby state, radio quality in a cell designated by “MDT Configuration” in a period defined by a “Logged MDT measurement period”, and generating and storing “LogMDTreport”, a step B of, when a standby cell is changed, acquiring, by the mobile station UE, radio quality in the changed standby cell, and generating and storing “LogMDTCellReselect”, and a step C of transmitting, by the mobile station UE, the “LogMDTreport” and the “LogMDTCellReselect” to a radio base station eNB after the mobile station UE is changed to an active state.08-08-2013
20130150051Method and Apparatus for Device-to-Device Communication - A method of controlling device-to-device communications between user equipment, including using a network control element, which is common to a plurality of networks, including controlling any of the following functions: network access control functions, connection set-up, resource allocation, mode switching, handover, security and/or charging. Also a method of controlling handovers or connections in a device-to-device communications between a first and a second user equipment wherein the control is performed, at least in part, said first or second user equipments. Alternatively the user equipment may send reports a handover/connection is initiated/controlled based on said report.06-13-2013
20130150052RETRIEVAL OF USER EQUIPMENT CAPABILITIES BY APPLICATION SERVER - The present invention provides a method of establishing a call to or from a user equipment in a wireless communication system comprising a first wireless network and a second wireless network, the second wireless network having an association with the first wireless network, the wireless communication system having a serving node and an application server capable of communication with said serving node, and the method comprising: receiving a message from said serving node at the application server, said message having information regarding network capabilities of said user equipment; and determining at the application server whether to anchor said call in the first wireless network or the second wireless network dependent on said information regarding network capabilities of said user equipment.06-13-2013
20110237260RADIO COMMUNICATION SYSTEM, BASE STATION, RADIO COMMUNICATION METHOD AND PROGRAM - A base station of the present invention includes: a bandwidth information notifier that exchanges information on unoccupied bandwidth in the allocatable bandwidth to the terminal under control which, among terminals, belongs to a QoS class that needs bandwidth guarantee, with neighboring base stations; and a candidate selector that, when the base station is the originating base station of the terminal under control, predicts whether the terminal under control is determined as being unaccommodatable by each neighboring base station, based on the unoccupied bandwidth of the neighboring base station, and excludes the neighboring base station that was predicted to be determined as being unable to accommodate the terminal under control from the candidates of target base stations of the terminal under control.09-29-2011
20110237259Method and Arrangement for Supporting Multiple Settings of Mobility Triggers in a Telecommunications System - The present invention relates to a method and an arrangement (09-29-2011
20110237258METHOD AND ARRANGEMENT IN AN LTE FEMTO SYSTEM - The invention relates to a method in a target radio base station (09-29-2011
20110250891METHOD AND APPARATUS FOR DIRECTING TRAFFIC BETWEEN OVERLYING MACROCELLS AND MICROCELLS - The present invention provides embodiments of methods for directing traffic between cells of different sizes. One embodiment of the method includes determining, at a mobile unit, whether to hand off from a source cell to a target cell based on information indicating sizes of coverage areas of the source cell and the target cell.10-13-2011
20110275378MULTI-CELL COMMUNICATION METHOD AND SYSTEM OF A MOBILE TERMINAL, A MICRO BASE STATION, AND A MACRO BASE STATION - Communication methods of a macro base station which collects position information about a mobile micro base station and that is served by the macro base station, predicts a channel between the macro base station and the micro base station, and performs a handover between the macro base station and the micro base station based on a state of the predicted channel is provided.11-10-2011
20130137438COMMUNICATION SYSTEM - A relay communications system is described in which a base station receives a request from an MME that an overload procedure be started or stopped. The base station inserts the identity of the MME into the request and forwards the modified request to a relay node. The relay node then initiates or terminates the overload procedure in accordance with the request for mobile telephones which the MME that made the request serves, but not for mobile telephones which the MME does not serve.05-30-2013
20130137436SELECTIVELY PROVIDING SYSTEM INFORMATION IN A HETEROGENEOUS NETWORK ENVIRONMENT - Described embodiments provide an apparatus and method for selectively providing system information in a heterogeneous network environment including a first network overlaid on a second network. The apparatus may include a location determination unit, a mapping table, and a signal processor. The location determination unit may be configured to determine a first network base station in the first network. The mapping table may be configured to store information on at least one second network cell in a second network, which is spatially in a comparatively close distance to each first network base station in the first network. The signal processor may be configured to determine at least one second network cell spatially close to the determined first network base station based on the mapping table and to transmit system information of the at least one second network cell to the user equipment.05-30-2013
20120282932Apparatus and Method - An apparatus and a method are provided. The provided solution includes a communication control circuitry configured to detect on the basis of a predetermined criterion a need to suspend the operation of a mobile relay base station connected to the apparatus, control the mobile relay base station to suspend its operation, control the apparatus to connect to the user equipment performing a handover from the mobile relay base station to the apparatus prior the suspension of the mobile relay base station, detect on the basis of a predetermined criterion a need to resume the operation of the mobile relay base station, and control the mobile relay base station to resume its operation.11-08-2012
20120282931CONTROLLING MOBILITY IN CELLULAR NETWORKS - A cellular basestation can select its own mobility parameters in order to achieve desirable effects in terms of the overall network performance. When a cellular basestation forms part of a group of such basestations on a single local area network, it can receive information from the other basestations in the group, for example relating to the loading on the other basestations, and can use this information in order to set mobility parameters. Where the basestation receives loading information from other basestations in the group, it can set mobility parameters so that a user equipment device becomes less likely to select a more highly loaded cell, and more likely to select a less highly loaded cell.11-08-2012
20130157666MOBILE COMMUNICATION TERMINAL APPARATUS, METHOD FOR CONTROLLING MOBILE COMMUNICATION TERMINAL APPARATUS, AND COMMUNICATION SYSTEM - An ETWSP receiving unit receives a primary message by use of an LTE network. An ETWSS receiving unit receives a secondary message by use of the LTE network. A 3G processing unit communicates by use of a 3G network. A CSFB control unit receives an instruction to switch to communication using the 3G network if connecting to the LTE network, switches connections from the LTE network to the 3G network if not having received the primary message, and holds the switching of the connection from the LTE network to the 3G network if having received the primary message and not having received the secondary message.06-20-2013
20130183981METHODS AND APPARATUS FOR IMPROVING CELL REDIRECTION SEARCH TIME - Aspects of the present disclosure provides methods, corresponding apparatus and program products, for improving LTE to another network (e.g., Wideband Code Division Multiple Access, WCDMA) redirection search time. A user equipment (UE) may receive a redirection message indicating a frequency for a potential target cell and may attempt to acquire a target cell based on the frequency indicated in the redirection message. IF the UE's attempt to acquire a target cell based on the indicated frequency fails to find a suitable target cell, the UE may attempt to find a suitable target cell using a heuristic approach involving one or more frequencies different than the frequency indicated in the redirection message.07-18-2013
20130122910Self-Adjusting Mobile Platform Policy Enforcement Agent for Controlling Network Access, Mobility and Efficient Use of Local and Network Resources - Presented is a method for controlling network access for the mobile device. The method includes analyzing a first plurality of network parameters, collected by the mobile device, based on one or more local network policies. The method further includes receiving an update for the one or more local network policies from a policy server based on a second plurality of network parameters received by the policy server from a plurality of mobile devices. The method also includes rerouting data traffic for the mobile device from a first wireless network configuration to a second wireless network configuration based on the analyzing of the second plurality of network parameters and the update from the policy server, Rerouting data traffic for the mobile device may include maintaining a constant IP address utilizing a virtual network adapter within the mobile device to provide split tunneling over two or more network connections of the second wireless network configuration.05-16-2013
20130189992METHOD AND SYSTEM FOR VOICE CALL SETUP FROM A PCH OR FACH STATE - A method at a user equipment for establishing a circuit switched call, the user equipment being in a Cell Forward Access CHannel (CELL_FACH) state, a Cell Paging CHannel (CELL_PCH) state or a UTRAN Registration Area Paging CHannel (URA_PCH) state, the method receiving an indication that a circuit switched call is pending; sending to a network element a message to facilitate the user equipment to transition to a Cell Dedicated CHannel (CELL_DCH) state, the message being one of a cell update message having a traffic volume indicator information element indicating that pending uplink data exceeds a threshold or an RRCConnectionRequest message; and establishing the circuit switched call.07-25-2013
20130189993CELL RESELECTION METHOD AND USER EQUIPMENT - Embodiments of the present invention disclose a cell reselection method and a user equipment, and the method includes: receiving, by a user equipment UE, a system message sent by a base station, where the system message includes a domain identifier of a neighboring cell of a source cell accesses by the UE, where the domain identifier is a routing area RA or location area LA or tracking area TA of the neighboring cell, the source cell is controlled by the base station, and there is at least one neighboring cell; judging, whether the domain identifier of the neighboring cell belongs to an RA or LA or TA in a camping forbidden list in the UE; and keeping the UE camping on the source cell if the domain identifier of the neighboring cell belongs to the RA or LA or TA in the camping forbidden list in the UE.07-25-2013
20120021748Methods and Devices with an Adaptive Neighbouring Cell Relations Function - Embodiments herein relate to a method in a first communication device with an adaptive neighbouring cell relations function. The first communication device receives (01-26-2012
20130196668METHOD AND EQUIPMENT FOR CONTROLLING MOBILE STATION TO SWITCH BETWEEN DIFFERENT WIRELESS COMMUNICATION SYSTEMS - The present invention relates to a method and an equipment for controlling the mobile station to switch between different wireless communication systems and belongs to the technical field of data transmission in the wireless communication systems. In order to resolve the problem that there are no means in the prior art to effectively control the mobile station to switch between different wireless communication systems at specified position, the present invention uses different network identifications to distinguish different wireless communication systems, and a set of wireless transceiver modules is mounted on the mobile station to associate with wireless communication system, and a set of independent receiving modules is mounted to receive the switch command from the ground sending device, the ground sending device sends the switch command when the mobile station passes the switching point; after receiving this switch command, the mobile station modifies its network identification according to the network identification comprised in the switch command for the target switching wireless communication system, and cuts off the link with the current wireless communication system and establishes the link with the target switching wireless communication system. This solution could realize the controlled switching for the mobile station between multiple overlapping wireless communication systems, and reduce the rate of wrong switching.08-01-2013
20130203419Method, Apparatus and Computer Program for Cell Identification - A method of cell detection, for a user equipment, UE, of a first cell, wherein the first cell operates on a first frequency, from a second cell, wherein UE is served by the second cell, and the second cell operates on a second frequency different form the first frequency, is disclosed. The method comprises performing cell detection on the first frequency while the UE is associated with the second cell on the second frequency; detecting at least one cell identification, ID, candidate on the first frequency; determining whether verification of cell ID is to be done prior or after a predetermined event has occurred; and if it is determined that verification is to be done after the predetermined event, postponing the verification and performing the verification after the predetermined event has occurred. Methods of cell identification and handover are also disclosed. A communication apparatus and a computer program are also disclosed.08-08-2013
20120094674HANDOVER CONTROL METHOD, APPARATUS AND SYSTEM - A handover control method is disclosed, including: obtaining an access mode and a closed subscriber group (CSG) identifier (ID) of a target area; deciding whether to allow an UE to be handed over to the target area according to the access mode and/or whether the CSG ID of the target area is included in the allowed CSG list of the UE. The handover control method can ensure the handover of the UE to the target area that the UE is allowed to access, therefore ensuring service continuity of the UE. A handover control apparatus and a handover control system are also disclosed.04-19-2012
20130210441Measurement Termination of Higher-Prioritized Layers for Priority-Based Cell Reselection Algorithms in Cellular Communication Systems - A user equipment (UE) is operated in a cellular communication system in which radiofrequency resources are partitioned into layers, each layer being associated with one of a set of hierarchical priority levels. While camped on a serving cell whose signals are transmitted on a first layer associated with a first priority level, the UE repeatedly measures a characteristic of a second layer that is present within its surroundings and generates from these measurements a plurality of measured surroundings data, wherein the second layer is associated with a second priority level that is higher than the first priority level. The UE ceases measuring the characteristic of the second layer that is present within the UE's surroundings in response to detecting both that at least one of the measured surroundings data is less than a predetermined threshold level and that a trend of the measured surroundings data is negative.08-15-2013
20130210442COMMUNICATION SYSTEM, MOBILE DEVICE, AND NETWORK APPARATUS - The communication system according to the present invention includes: a mobile device 08-15-2013

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