Patent application number | Description | Published |
20080311900 | CELL SELECTION - To determine a cell for usage in wireless communication, a signal-to-noise ratio or a signal-to-power ratio can be used in selecting an appropriate cell. However, cell selection can also configure to take both signal-to-noise ratio and signal-to-power ratio into account. Multiple available cells can be analyzed and a highest ranking cell can be selected through balancing the aforementioned ratios. In addition, to minimize transferring between cells, a limitation can be placed such that a cell is not left unless there is better of both the aforementioned ratios at another cell. | 12-18-2008 |
20090137249 | FAVORING ACCESS POINTS IN WIRELESS COMMUNICATIONS - Systems and methodologies are described that facilitate applying offsets and/or selectable hysteresis values to favor access points in cell reselection. In measuring and ranking surrounding access points in reselection, offsets can be applied to favorable access points to facilitate cell reselection thereto. The offset can positively affect measurements, and thus ranking as well, in some cases. Negative offsets can also be applied to lower measurements (and thus ranking) of some access points. Moreover, hysteresis values can be applied in measuring current cells to prevent frequent reselection. The hysteresis values can be selected based on a type of the current cell or related access point to expand the coverage area where desired. Thus, where the current access point is favorable, a larger hysteresis can be added to measurements related to the current access point. | 05-28-2009 |
20090238114 | CELL SELECTION AND RESELECTION IN DEPLOYMENTS WITH HOME NODEBS - Systems and methodologies are described that facilitate cell search, selection, and reselection within a wireless communication network that includes a home node base station (home nodeB). A user equipment (UE) can detect a home nodeB and communicate such identification to a macro network that includes at least one node base station (nodeB). The detected home nodeB and nodeB can be hierarchically structured in order to prioritize connectivity with the home nodeB over the nodeB. Such prioritization can be implemented by broadcasting home nodeB parameters and macro nodeB parameters having identification information therewith. | 09-24-2009 |
20090264130 | METHOD AND APPARTUS FOR MANAGEMENT OF AUTOMATIC NEIGHBOR RELATION FUNCTION IN WIRELESS NETWORKS - Systems and methodologies are described that facilitate management of automatic neighbor relation functions in wireless networks. The system can include components and/or devices that ascertain whether or not to add or remove a neighbor relation based on information associated with an operations and management system, wherein the operations and management system dispatches add or remove requests to a base station that establishes, updates, and/or maintains a neighbor relations table and/or set of neighbor relations that includes neighbor relations between cells. | 10-22-2009 |
20090305699 | REGISTRATION AND ACCESS CONTROL IN FEMTO CELL DEPLOYMENTS - Systems and methodologies are described that facilitate distributing and/or utilizing a Closed Subscriber Group (CSG) Identifier (ID) that identifies a CSG corresponding to a base station and a CSG indication that distinguishes between the base station permitting access to members of the CSG and permitting access to members and non-members of the CSG. For instance, the CSG ID can uniquely identify the CSG corresponding to the base station. A mobile device can receive the CSG ID and the CSG indication from the base station. Further, the received CSG ID can be compared to CSG IDs included in an allowed CSG list to recognize whether the mobile device is a member or a non-member of the CSG. Moreover, a preference for selecting the base station as compared to a disparate base station can be generated as a function of the received CSG ID and CSG indication. | 12-10-2009 |
20100003978 | Apparatus and Method For Improving Mobile Terminated Cell Setup Performance During Inter-Frequency Cell Reselection - An apparatus and method comprising determining if the timing of a registration system information (RSI) or a paging occasion occurs first; if the paging occasion occurs first, checking for a page and answering the page on the target cell after collecting system information (SI) if the page exists; or if the timing of the RSI occurs first: reading RSI and obtaining a registration area indicator of the target cell; determining if the registration area indicators of a source cell and of the target cell are the same; if not, determining whether checking the page in the source cell would overlap with receiving SI from the target cell; if overlap, or if same, collect SI and monitor a paging channel in the target cell; or if no overlap, checking for the page in the source cell, and if no page, collect SI and monitor the paging channel in the target cell. | 01-07-2010 |
20100029274 | SYSTEM AND METHOD FOR CELL SEARCH AND SELECTION IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate improved cell search and selection in a wireless communication system. For example, a terminal as described herein can utilize one or more Closed Subscriber Group (CSG)-specific offset and/or hysteresis parameters as described herein to increase the amount of time on which the terminal is allowed to camp on a desirable cell. Additionally, specialized reselection timing can be employed as described herein to increase a delay associated with selecting a Home Node B (HNB) or Home Evolved Node B (HeNB) cell, thereby reducing power consumption associated with rapid cell reselection operations in a densely populated network environment. Further, a two-step reselection process can be performed as described herein in the context of selecting a frequency for cell reselection, thereby mitigating the effects of rapid reselection between cells and/or frequencies due to CSG cell prioritization. | 02-04-2010 |
20100120426 | OPTIMIZED SIGNALING OF PRIMARY SCRAMBLING CODES AND FREQUENCY LISTS IN WIRELESS COMMUNICATIONS - Systems and methodologies are described that facilitate communicating PSC split information regarding neighboring cells. The PSC split information can be transmitted in one or more overhead messages selected based on network deployment. Where macro cells and femto cells provide PSC split information, which can be a PSC range for related cells, PSC list, etc., the information can be transmitted in a low priority overhead message since it can be obtained at a source cell. Where only femto cells or closed subscriber group (CSG) cells provide PSC split information, the information can be transmitted in a higher priority more frequently transmitted message. In this regard, the information is available at target cells since not all devices can access CSG cells. Thus, by providing the PSC split information in a more frequently transmitted message, devices can retrieve the PSC split information early on in communications to lower power consumption. | 05-13-2010 |
20100123575 | SYSTEM AND METHOD FOR FACILITATING CAPACITY MONITORING AND RECOMMENDING ACTION FOR WIRELESS NETWORKS - A method and apparatus for facilitating capacity monitoring and recommending action for a wireless network is provided. The method may comprise: obtaining data associated with one or more capacity attributes and one or more key performance indicators (KPIs) associated with a network, calculating network level values for the one or more KPIs from the obtained data, generating performance data graphs by plotting a first of the one or more KPIs against a second of the one or more KPIs, analyzing the one or more performance data graphs to determine at least one alarm threshold, and monitoring the one or more capacity attributes to determine if any of the at least one alarm thresholds has been triggered. | 05-20-2010 |
20100197304 | APPARATUS AND METHOD FOR ACCESS STRATUM MANAGEMENT OF WIRELESS DEVICES - An apparatus and method for access stratum management comprising reading system information from at least one broadcast channel from a current serving cell; and determining if an available cell is suitable for a user equipment (UE) based on information included in the broadcasted system information, wherein the determining step comprises at least one of the following: comparing system release information of the user equipment (UE) from the broadcasted system information; determining if the available cell supports a specific feature which makes the available cell suitable for optimum performance of the UE; or determining if the available cell and a frequency combination are suitable for a UE type. | 08-05-2010 |
20110111765 | SYSTEM AND METHODS FOR TRAFFIC VOLUME REPORTING DURING RADIO ACCESS NETWORK CONNECTION SETUP - Disclosed are systems, methods and computer program products for traffic volume reporting during radio access network (RAN) connection setup. In one aspect, the RAN broadcasts an indicator that it accepts traffic volume measurements (TVM) from access terminals (ATs) and an associated TVM threshold. An AT measures its traffic volume before requesting a connection with the RAN. If the traffic volume is above the threshold, AT transmits to the RAN a connection request containing a TVM indicator that the measured traffic volume from the AT is above the threshold. If the traffic volume is below the threshold, AT transmits to the RAN a connection request containing a TVM indicator that the traffic volume is below the threshold. | 05-12-2011 |
20110182271 | METHOD AND APPARATUS FOR FACILITATING EFFICIENT HANDOVER - A method and apparatus facilitating efficient handover by a wireless communications device is provided. The method may comprise obtaining at least two handover metrics for a target cell and for a serving cell, wherein the at least two handover metrics are determined by a request received from the serving cell, determining if all the obtained handover metrics for the target cell are greater than or equal to corresponding threshold values, wherein the corresponding threshold values for the at least two handover metrics are determined by the request received from the serving cell, determining if at least one of the obtained handover metrics for the serving cell is less than the corresponding threshold value, and generating a measurement report indicating the target cell as a handover candidate cell. | 07-28-2011 |
20110319032 | APPARATUS AND METHOD TO CONTROL IDLE-MODE RADIO MEASUREMENTS - An apparatus and method for controlling idle mode radio measurements comprising: determining if a radio measurement is less than a radio threshold; determining a time duration in which the radio measurement is less than the radio threshold; determining if the time duration is greater than a time measurement threshold; and obtaining at least one other radio measurement from at least one base station which is not a serving cell. | 12-29-2011 |
20120264416 | SELECTIVE STATE TRANSITIONS OF A USER EQUIPMENT WITHIN A WIRELESS COMMUNICATIONS SYSTEM - In an embodiment, a user equipment (UE) determines that a client application has entered a period of transmission inactivity whereby the UE will not be required to transmit data on behalf of the client application. The UE selectively transmits a transmission inactivity notification to an access network (AN) to notify the AN of the transmission inactivity period. The AN receives the transmission inactivity notification and determines to transition the UE from a first state to a second state based at least in part on the received transmission inactivity notification, the second state associated with lower-power consumption of the UE than the first state. The AN sends instructions to the UE to facilitate the transition of the UE from the first state to the second state. In another embodiment, the AN can send instructions to the UE to prohibit the UE from sending transmission inactivity notifications. | 10-18-2012 |
20120329462 | APPARATUS 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 |
20130044702 | Apparatuses and Methods For Controlling Access to a Radio Access Network - The present disclosure presents apparatuses and methods of accessing a communication network including obtaining extended access barring (EAB) data at a user equipment (UE), wherein the EAB data comprises an EAB uniform delay parameter, computing a uniform distribution parameter, determining an access bar period, wherein the access bar period is based on at least the EAB uniform delay parameter and the uniform distribution parameter, and initiating an access procedure to access the communication network after waiting at least the access bar period. Additionally, apparatuses and methods associated with a network apparatus controlling access to the communication network are also disclosed. | 02-21-2013 |
20130128863 | Deferred Measurement Control Reading of System Information Block (SIB) Messages - A method of wireless communication defers measurement control reading of a SIB. The method includes determining whether a user equipment (UE) has been redirected to a first radio access technology (RAT) from a second RAT. The method also includes selectively reading a system information block (SIB) based on whether the UE was redirected to the first RAT from a second RAT. | 05-23-2013 |
20130194919 | APPARATUS AND METHOD FOR USER EQUIPMENT ASSISTED CONGESTION CONTROL - A method, an apparatus, and a computer program product for wireless communication are provided in connection with improving QoE in RAN congestion. In one example, a communications device is equipped to indicate a quality control indicator (QCI) for each of a plurality of applications that communicate with a RAN over a bearer, receive information regarding modification of the bearer or additional bearers based on the QCIs, and modify the bearer or additional bearers according to the information to achieve a desired QoE for at least one of the plurality of applications. In another example, a RAN is equipped to receive a QCI for each of a plurality of applications related to a bearer from a UE, and modify the bearer or adding additional bearers for communicating with the UE based on the QCI for each of the plurality of applications to improve QoE at the UE. | 08-01-2013 |
20130244655 | METHODS AND DEVICES FOR FACILITATING FAST CELL RESELECTION AT CALL RELEASE - Access terminals are adapted to receive cell selection instructions directing the access terminal to connect to a target cell from a serving cell upon a channel release. The access terminal may determine whether one or more signal parameters of the target cell are above respective threshold values. If the one or more signal parameters are above the respective threshold values, the access terminal connects to the target cell. If one or more signal parameters are not above the respective threshold values, the access terminal continues with the serving cell. Wireless network devices send a channel release message at the end of an active call. The channel release message can include a cell selection instruction directing the access terminal to connect to a target cell upon channel release. Other aspects, embodiments, and features are also claimed and described. | 09-19-2013 |
20130303224 | METHODS AND APPARATUSES FOR PROVIDING INTER-RADIO-NETWORK-CONTROLLER MULTIFLOW CAPABILITY - The present disclosure presents example methods and apparatuses for improved cell searching in a wireless communications environment. For example, the disclosure presents example methods of wireless communication in a multiflow environment, which may include establishing a first flow between a serving radio network controller (S-RNC) and a first network entity, wherein the S-RNC controls the first network entity. Such example methods may also include establishing a second flow between the S-RNC and a second network entity. Furthermore, such example methods may include transmitting data to a user equipment (UE) via both the first flow and the second flow. | 11-14-2013 |
20140038622 | METHODS AND APPARATUS FOR EFFICIENT COMMUNICATION OF SMALL DATA AMOUNTS WHILE IN IDLE MODE - A method, an apparatus, and a computer program product for wireless communication are provided in connection with enabling communication of small data amounts while maintaining a RRC idle mode of operation for a UE. In an example, a UE is equipped to obtain a temporary radio bearer for communication of data, that meets one or more criteria for small data transmission, over a user plane in a UMTS or LTE based network, and transmit the data, over the user plane, using the temporary radio bearer while maintaining the UE in an RRC idle mode. A UTRAN entity may receive, over the temporary radio bearer assignment, the data from a UE in an idle mode, and send the data to a SGSN using a common small data connection. The SGSN may then send the data to a PGW. | 02-06-2014 |
20140045495 | SYSTEM AND METHOD FOR CELL SEARCH AND SELECTION IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate improved cell search and selection in a wireless communication system. For example, a terminal as described herein can utilize one or more Closed Subscriber Group (CSG)-specific offset and/or hysteresis parameters as described herein to increase the amount of time on which the terminal is allowed to camp on a desirable cell. Additionally, specialized reselection timing can be employed as described herein to increase a delay associated with selecting a Home Node B (HNB) or Home Evolved Node B (HeNB) cell, thereby reducing power consumption associated with rapid cell reselection operations in a densely populated network environment. Further, a two-step reselection process can be performed as described herein in the context of selecting a frequency for cell reselection, thereby mitigating the effects of rapid reselection between cells and/or frequencies due to CSG cell prioritization. | 02-13-2014 |
20140094173 | REGISTRATION AND ACCESS CONTROL IN FEMTO CELL DEPLOYMENTS - Systems and methodologies are described that facilitate distributing and/or utilizing a Closed Subscriber Group (CSG) Identifier (ID) that identifies a CSG corresponding to a base station and a CSG indication that distinguishes between the base station permitting access to members of the CSG and permitting access to members and non-members of the CSG. For instance, the CSG ID can uniquely identify the CSG corresponding to the base station. A mobile device can receive the CSG ID and the CSG indication from the base station. Further, the received CSG ID can be compared to CSG IDs included in an allowed CSG list to recognize whether the mobile device is a member or a non-member of the CSG. Moreover, a preference for selecting the base station as compared to a disparate base station can be generated as a function of the received CSG ID and CSG indication. | 04-03-2014 |
20140098756 | APPARATUS AND METHODS FOR IMPROVED USER EQUIPMENT (UE) CAPABILITY SIGNALING - A method of random access in wireless communications that includes transmitting a radio resource control (RRC) connection request message, receiving an RRC connection setup message, and transmitting a modified RRC connection setup complete message that does not include at least a portion of a user equipment (UE) capability. | 04-10-2014 |
20140133294 | Methods and Systems for Broadcasting Load Information to Enable a User Equipment (UE) to Select Different Network Access - Methods and apparatus for offloading traffic from a first RAT network (e.g., WWAN) to a second RAT network (e.g., WLAN) are described. In some cases, the first RAT network may broadcast an indication of a level of preference for offloading traffic for one or more application types to the first or second RAT network. A UE may determine which RAT network to use for transmitting data based on this indication and current system conditions (e.g., relative loading of the first and second RAT networks). | 05-15-2014 |
20140133304 | APPARATUS AND METHODS OF CONTROLLING CALL ESTABLISHMENT - Apparatus and methods of controlling call establishment are described. A user equipment (UE) may determine to establish a call. In an aspect, the UE may detect a Wireless Local Area Network (WLAN) access node and receive, from a Wireless Wide Area Network (WWAN) access node, WWAN load-related information. Based on UE call establishment rules and the WWAN load-related information, the UE may determine whether to establish the call on the WWAN access node or the WLAN access node. In another aspect, the UE may determine WLAN access node characteristics associated with a received signal from a WLAN access node. The UE may forward a call establishment request, including the WLAN access node characteristics to a WWAN access node. The UE may receive a redirection command to redirect the call establishment request to the WLAN access node. | 05-15-2014 |
20140334318 | METHOD AND APPARATUS FOR ESTIMATING AN ACHIEVABLE LINK THROUGHPUT BASED ON ASSISTANCE INFORMATION - Methods and apparatuses are provided for determining available uplink bandwidth as an achievable throughput for a link. An available link capacity of a link with a cell for a user equipment is estimated based on a communication quality measured in the cell. An available fraction of cell resources for the user equipment over the link is also estimated based at least in part on received assistance information. An available bandwidth of the cell is then estimated as an achievable throughput for the user equipment over the link as a function of the estimated available link capacity and the estimated available fraction of cell resources. Moreover, a network procedure can be performed based at least in part on comparing the achievable throughput to one or more thresholds. | 11-13-2014 |
20150045077 | METHOD AND APPARATUS FOR HANDLING PRIMARY SCRAMBLING CODES - The present disclosure presents a method and apparatus for handling primary scrambling codes (PSC) in a wireless network. For example, the disclosure presents a method for detecting, by a user equipment (UE) of a plurality of UEs, a PSC in search windows with different timing offsets, wherein the different timing offsets correspond to a plurality of small cells sharing the PSC in a coverage area of a macro cell, and transmitting, by the UE, a plurality of measurement reports corresponding to the different timing offsets. As such, primary scrambling codes (PSC) are handled in a wireless network. | 02-12-2015 |
20150056993 | CONNECTED MODE MOBILITY BETWEEN RADIO ACCESS NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided in which a user equipment performs an inter-radio access technology (RAT) mobility procedure from a first network to a second network while idle mode signaling reduction (ISR) is active, locally deactivates ISR in connection with completion of the inter-RAT mobility procedure, and initiates a location management procedure in the second network. Depending on the respective type of the first and second network, and the connection state of the UE with respect to the first network, the mobility procedure may be performed in response to a mobility command received from the first network, or in response to a mobility condition of the first network as detected by the UE. | 02-26-2015 |