Patent application number | Description | Published |
20080200171 | WIRELESS COMMUNICATION SYSTEM TRANSMITTING NEIGHBORING CELL INFORMATION - A wireless communication system in which neighbouring cell information is transmitted by the network to a mobile station is disclosed, wherein the neighbouring cell information includes sets of parameters, each set of parameters being applicable to several neighbouring cells. The neighbouring cell information may also include applicability information which specifies the rules the mobile station is to apply to determine which parameter set is applicable for a particular neighbouring cell. | 08-21-2008 |
20080205331 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SYSTEM INFORMATION IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving system information in a mobile communication system are provided, in which a System Frame Number (SFN) is transmitted as system information, and other system information, which excludes the SFN, is transmitted using resources different from resources used to transmit the SFN on a broadcast channel. | 08-28-2008 |
20080212522 | METHOD AND APPARATUS FOR RECEIVING SYSTEM INFORMATION FROM BASE STATION IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for receiving system information from a Base Station (BS) in a Mobile Station (MS) in a mobile communication system are provided, in which it is determined whether there is buffered system information in a buffer, if current system information has an error, it is determined whether a combining condition is satisfied, in the presence of the buffered system information, the combining condition being defined by at least one of a Master Information Block (MIB) value tag, a System Information Block (SIB) value tag, and modification time information that are associated with the current system information, and the current system information is combined with the buffered system information, if the combining condition is satisfied. | 09-04-2008 |
20080214193 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING INFORMATION USING RANDOM ACCESS PROCEDURE IN MOBILE COMMUNICATION SYSTEM - Disclosed is a method and an apparatus for transmitting and receiving additional information through a random access procedure by mapping at least one additional information element to random access codes to be used in a random access procedure between a UE and an ENB in a mobile communication system. According to the method, a random access code selected based on additional information to be transmitted and a triggering cause of the random access procedure is transmitted from the UE to the ENB. Each random access code is differently mapped to at least one additional information element according to a class of a cause for which a corresponding random access procedure is triggered, and the additional information elements are mapped to different ranges of random access codes according to the classes of the cause. | 09-04-2008 |
20080227447 | APPARATUS AND METHOD FOR PERFORMING CELL SELECTION TO HOME CELL OR PRIVATE NETWORK IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for performing cell selection to a Home cell or a Private network in a mobile communication system are provided, in which a User Equipment (UE) determines a candidate cell by measuring a serving cell and neighbor cells, receives an indicator indicating a Home cell or a Private network in system information from the candidate cell, determines whether the candidate cell is included in a Home cell or Private network list set in the UE, and selects the candidate cell if the candidate cell is included in the Home cell or Private network list. | 09-18-2008 |
20080232323 | METHOD AND APPARATUS FOR HANDOVER IN A WIRELESS COMMUNICATION SYSTEM, AND SYSTEM THEREOF - A method and apparatus for handover in a wireless communication system and a system thereof, in which a Base Station (BS) allocates Scheduling Request/Channel Quality Information (SR/CQI) transmission resources to a Mobile Station (MS), an SR/CQI being periodically transmitted from the MS to a target cell, determines whether control information has been received from the MS using the allocated SR/CQI transmission resources, and allocates radio resources to the MS, for transmission of a handover confirm message from the MS, upon receipt of the control information from the MS. | 09-25-2008 |
20080232333 | METHOD AND SYSTEM FOR SCHEDULING IN MOBILE COMMUNICATION SYSTEM - A method and an apparatus for scheduling in a mobile communication system. According to the method, for data/message pre-promised between a UE and a network node, the UE transmits a scheduling request at a predetermined timing. When the network node receives the scheduling request at the predetermined timing, the network node directly allocates a resource for transmission of the promised data/message by itself, so that the UE can instantly transmit the data/message. As a result, transmission delay can be reduced. | 09-25-2008 |
20080248840 | DISCONTINUOUS RECEPTION METHOD AND APPARATUS OF USER EQUIPMENT IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for DRX of a UE in a mobile communication system are provided, in which the UE receives setting information from a network, the setting information including a first DRX cycle length and a second DRX cycle length for a predetermined data service. Upon generation of uplink data, the UE transitions to a downloading phase in which active periods are set according to the first DRX cycle length. | 10-09-2008 |
20080273492 | METHOD AND USER EQUIPMENT APPARATUS FOR RADIO RESOURCE MANAGEMENT IN A MOBILE COMMUNICATION SYSTEM - A method and a UE apparatus for radio resource management in a mobile communication system. When a discontinuous reception period or an inactivity period of a UE exceeds a threshold, an ENB releases resources for uplink control information transmission allocated to the UE, and the UE recognizes the release of the resources and stops transmitting the uplink control information through the resources. This reduces the explicit reconfiguration procedure through an RRC message, which is otherwise necessary whenever the UE enters a new discontinuous reception mode. | 11-06-2008 |
20080304447 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PACKET DATA BETWEEN A NODE B AND A UE USING HARQ IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving packet data between a UE and an Enhanced Node B (ENB) using a Hybrid Auto Repeat Request (HARQ) scheme in a mobile communication system. The method includes the steps of receiving configuration information from an ENB, the configuration information including a first Maximum Retransmission Limit (MRL) value to be applied to data that is transmitted over a persistent resource, and when data to be transmitted by the UE is quasi-real time data, transmitting a first data packet to the ENB by using the persistent resource and applying the first MRL value the first data packet, which is configured from the quasi-real time data. | 12-11-2008 |
20090052388 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS PROCEDURE IN A MOBILE COMMUNICATION SYSTEM - A method for performing a random access procedure by a User Equipment (UE) in a mobile communication system includes transmitting a preamble for identifying the UE, through a first message; receiving a second message from an Evolved Node B (ENB) in response to the first message, the second message including uplink (UL) transmission resource information for transmitting at least one of a transparent Radio Resource Control (RRC) message which is an RRC message that a UE having no RRC control connection transmits for the first time, and Buffer Status Report (BSR) information indicating an amount of UL data; setting a format indicator indicating if the transparent RRC message or the BSR information is included in a third message; and generating the third message according to the set format indicator, and transmitting the generated third message according to the UL transmission resource information. | 02-26-2009 |
20090129326 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION FOR UPLINK DATA IN A MOBILE COMMUNICATION SYSTEM AND SYSTEM THEREOF - A method for transmitting control information for uplink data in a mobile communication system is provided. The method includes defining a plurality of transmission data having different priorities, and determining whether there is a need for transmission of particular transmission data, for which a minimum data rate should be guaranteed, among the plurality of transmission data, and when there is a need for transmission of the particular transmission data, transmitting control information indicating a highest priority among priorities of the plurality of transmission data, along with the particular transmission data. | 05-21-2009 |
20090275326 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SYSTEM INFORMATION IN BROADBAND WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for transmitting and receiving System Information (SI) of a femto base station in a wireless communication system are provided. In the method, an SI transmission point is determined using unique identification information of a femto base station itself and unique identification information of a macro base station with which the femto base station is associated. Each of user equipment and the macro base station generate a measurement gap pattern representing an SI reception point using the unique identification information of the femto base station and the unique identification information of the macro base station. SI is received from the femto base station according to the generated measurement gap pattern. | 11-05-2009 |
20090316595 | METHOD AND APPARATUS FOR IDENTIFYING BASE STATION IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for identifying a base station in a wireless communication system are provided. The method includes storing a Neighbor Cell List (NCL) received from a serving base station, obtaining a Physical Cell IDentifier (PCID) from a signal received from a neighbor base station, and identifying whether the neighbor base station is a macro base station or a femto base station by determining whether the obtained PCID exists in the stored NCL. | 12-24-2009 |
20100041393 | PAGING METHOD AND APPARATUS THEREOF IN BROADBAND WIRELESS COMMUNICATION SYSTEM - Provided are a paging method and an apparatus thereof for User Equipment (UE) in a broadband wireless communication system. In the method, a paging message is received from a macro base station. Whether there exists an accessible femto base station inside a service area of the macro base station is determined. When there does not exist the accessible femto base station inside the service area of the macro base station, the UE responds to the paging message of the macro base station. When there exists the accessible femto base station inside the service area of the macro base station, the UE waits for a paging message to be received from the femto base station. | 02-18-2010 |
20100069069 | Apparatus and method for automatically searching for low-power base station supporting access of registered user in mobile communication system - An apparatus and method for automatically searching for a low-power Base Station (BS) supporting access of a registered user in a mobile communication system includes a method of performing automatic search on a Closed Subscriber Group (CSG) cell by a User Equipment (UE). The method includes determining by the UE whether automatic search needs to be performed on the CSG cell. The method also includes, if it is determined that automatic search does not need to be performed on the CSG cell, turning off by the UE a CSG cell automatic search function of the UE by emptying a first white list including CSG Identifiers of accessible CSG cells. | 03-18-2010 |
20100112956 | Radio link failure detection method and apparatus for wireless communication system - A radio link failure detection method of a user equipment transitioning between a Discontinuous Reception (DRX) mode and non-DRX mode cyclically in a wireless communication system includes transitioning between a Discontinuous Reception (DRX) mode and a non-DRX mode in a wireless communication system. The method also includes adjusting, when a mode transition occurs, a size of a monitoring window for a transitioned operation mode; reporting a radio channel condition acquired by monitoring and averaging the channel condition within the monitoring window; and repeating adjustment of the monitoring window size and report of the radio channel condition while moving the monitoring window as time progress. | 05-06-2010 |
20100113009 | Measurement report method and apparatus in wireless communication system - A measurement report method and apparatus of a user equipment is capable of improving system performance in a wireless communication system in which macro and Closed Subscriber Group (CSG) cells are co-located. An inter-frequency measurement report method of a user equipment in a wireless communication system including macro and Closed Subscriber Group (CSG) cells according to the present invention includes performing measurements for all cells identified by unique Physical Cell Identifiers (PCIs); determining whether at least one cell of which measurement fulfills inter-frequency measurement report events; checking, if at least one cell of which measurement fulfills inter-frequency measurement report events, a type of a best cell among the at least one cell in measurement; and transmitting, if the best cell is a macro cell or an accessible CSG cell, the inter-frequency measurement report to a serving base station. | 05-06-2010 |
20100113019 | UE mobility state detection apparatus and method for wireless communication system - A method for transmitting information required for user equipment mobility state detection is provided. The method includes broadcasting, at a base station, system information including frequency information and cell identifiers (IDs) of cells co-located with a current cell geographically; and transmitting, when an handover is detected, a handover command message including a handover factor indicator indicating whether the handover was triggered by movement of the user equipment, wherein the user equipment detects the mobility state based on the information provided by the system information and the handover command message. The apparatus and method of the present invention allows the UE to add the cell reselection/handover triggered by movement of the UE to the number of cell reselections/handovers and subtract the cell reselection/handover triggered by a non-mobility factor from the number of cell reselections/handovers used for determining the UE mobility state thereby improving accuracy of the UE mobility state detection. | 05-06-2010 |
20100115275 | SECURITY SYSTEM AND METHOD FOR WIRELESS COMMUNICATION SYSTEM - A security system processing method of a User Equipment (UE) and a security system for a wireless communication system are provided. The security processing method of the UE includes transmitting a Layer 3 message including a UE security capability to a Mobility Management Entity (MME) and the eNB, receiving a Access Stratum Security Mode Command (AS SMC) including a AS security algorithm selected by the eNB, as a result of verification of the UE security capability and information received from the MME, and a AS Message Authentication Code (MAC), transmitting a AS security mode complete message including the AS SMC to the eNB after verification of integrity of the AS SMC using the AS MAC, and transmitting, when receiving a Non Access Stratum (NAS) SMC including the UE security capability, a NAS security mode complete message to the MME after verification of integrity of the NAS SMC. | 05-06-2010 |
20100234027 | METHOD AND SYSTEM FOR IMPROVING CALL DROP CAUSED BY RADIO LINK FAILURE IN MOBILE COMMUNICATION SYSTEM - A method and system for improving a call drop caused by a Radio Link Failure (RLF) before handover triggering in a mobile communication system are provided. The method of improving the call drop caused by the RLF in the mobile communication system includes detecting an RLF occurring before handover triggering (RLF_before_HO), generating one of an RLF_before_HO-dependent statistics and an RLF_before_HO-dependent log file, transmitting the one of the RLF_before_HO-dependent statistics and the RLF_before_HO-dependent log file to a serving Base Station (BS), and updating a Neighbor Relation Table (NRT) and optimizing a handover parameter using the one of the RLF_before_HO-dependent statistics and the RLF_before_HO-dependent log file. | 09-16-2010 |
20100238831 | RACH-RELATED SYSTEM RESOURCE OPTIMIZATION METHOD AND APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A RACH-related system resource optimization method and apparatus is provided for a wireless communication system. Specifically, a method is provided in a user equipment for optimizing a system resource related to a random access channel in a wireless communication system. A downlink channel condition and a transmission capability for performing random access to a base station based on a stored message size parameter are measured. The measured downlink channel condition and the measured transmission capability are reported. When a new message size parameter determined based on the reported downlink channel condition and the reported transmission capability is received, the stored message size parameter is updated with the new message parameter. | 09-23-2010 |
20100272050 | METHOD AND APPARATUS FOR MANAGING USER EQUIPMENT HISTORY INFORMATION IN WIRELESS COMMUNICATION NETWORK - A method and an apparatus for managing User Equipment (UE) history information are provided. The method for managing user equipment history information in a wireless communication network includes determining if a recording event occurs when the user equipment enters into an idle mode; recording information about the recording event in idle mode user equipment history information when the recording event occurs; and transmitting the recorded idle mode user equipment history information to a base station when the user equipment accesses the base station. | 10-28-2010 |
20100278064 | RACH-SPECIFIC INFORMATION TRANSMISSION METHODS AND APPARATUSES FOR WIRELESS COMMUNICATION SYSTEM - An RACH information transmission method and apparatus is provided for a wireless communication system. A preamble selected from a specific preamble group is transmitted. A random access response message having a Transmission Time Interval (TTI) bundling indicator is awaited in response to the preamble. A combined message generated by applying a TTI bundling based on the TTI bundling indicator with a number of TTIs is transmitted, when the random access response message is received. | 11-04-2010 |
20100278131 | APPARATUS AND METHOD FOR MANAGING A RANDOM ACCESS CHANNEL IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for managing a Random Access CHannel (RACH) in a mobile communication system, in which a User Equipment (UE) receives a UE information transmit request for a RACH procedure from a network, and transmits, to the network, a message including information indicating a contention detected in the RACH procedure. | 11-04-2010 |
20110045837 | METHOD AND APPARATUS FOR IDENTIFYING DOWNLINK MESSAGE RESPONSIVE TO RANDOM ACCESS PREAMBLES TRANSMITTED IN DIFFERENT UPLINK CHANNELS IN MOBILE COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION - An apparatus and method for determining an uplink channel used for a random access procedure are provided. An exemplary method by a User Equipment (UE) includes transmitting a preamble to a Base Station (BS) on at least one channel of a plurality of channels, receiving a response from the BS, and distinguishing the response based on an identifier unique to a channel resource to identify the channel in which the preamble is transmitted. | 02-24-2011 |
20110092217 | POWER HEADROOM REPORTING METHOD AND DEVICE FOR WIRELESS COMMUNICATION SYSTEM - Methods and apparatus are provided for reporting a Power Headroom (PH) of a User Equipment (UE) in a wireless communication system having a plurality of aggregated uplink carriers. The PH is calculated for a Power Headroom Report (PHR)-triggered uplink carrier. A PHR having the PH and an identifier of the PHR-triggered uplink carrier is generated, and the PHR is transmitted to a network. Also, a PHR having the PH is generated, and the PHR is transmitted to a network over one of a plurality of PHR-transmitting uplink carriers configured to correspond to the PHR-triggered uplink carrier. | 04-21-2011 |
20110128919 | DEVICE AND METHOD FOR SELECTING TRANSCEIVER IN MOBILE COMMUNICATION SYSTEM - A device and method for selecting one of a plurality of transceivers in a mobile terminal are provided. The method includes receiving information about the plurality of transceivers, receiving information about at least one transceiver being used, and transmitting a transceiver switching message. By selectively choosing the transceivers in the mobile terminal, radio resources of a mobile communication system can be more optimally used. | 06-02-2011 |
20110263262 | APPARATUS AND METHOD FOR PROVIDING HANDOVER SUPPORT INFORAMTION IN MOBILE COMMUNICATION SYSTEM - An apparatus and method for providing handover support information in a mobile communication system are provided. A method for an Base Station (BS) to provide information necessary for measurement report trigger performance to a Mobile Station (MS) after the MS determines neighboring BSs in a mobile communication system includes, in a case where the MS is an active mode MS, providing a Time To Trigger (TTT) independently by a specific neighboring BS to the active mode MS and, in a case where the MS is an idle mode MS, providing a reselection time period (Treselection) independently by the specific neighboring BS to the idle mode MS. | 10-27-2011 |
20110310833 | BLIND SCHEDULING APPARATUS AND METHOD IN A MOBILE COMMUNICATION SYSTEM - A system and a method minimize power consumption, signalling overhead, and processing load in blind scheduling in a mobile communication system. A User Equipment (UE) detects a type of an uplink (UL) grant while it is periodically allocated the UL grant. If there is no data to transmit using the UL grant, the UE determines whether to transmit a padding Medium Access Control (MAC) Protocol Data Unit (PDU) to an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (eNB) using the UL grant according to the type of the UL grant. | 12-22-2011 |
20120028639 | APPARATUS AND METHOD FOR PERFORMING CELL SELECTION TO HOME CELL OR PRIVATE NETWORK IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for performing cell selection to a Home cell or a Private network in a mobile communication system are provided, in which a User Equipment (UE) determines a candidate cell by measuring a serving cell and neighbor cells, receives an indicator indicating a Home cell or a Private network in system information from the candidate cell, determines whether the candidate cell is included in a Home cell or Private network list set in the UE, and selects the candidate cell if the candidate cell is included in the Home cell or Private network list. | 02-02-2012 |
20120082116 | APPARATUS AND METHOD FOR FEEDING BACK CHANNEL QUALITY INFORMATION AND SCHEDULING APPARATUS AND METHOD USING THE SAME IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). In the OFDMA wireless communication system, forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced, and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station, sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted. | 04-05-2012 |
20120083290 | SYSTEM AND METHOD FOR MEASURING A SIGNAL OF A COMMUNICATION SYSTEM - The present invention relates to a method which involves resetting a signal-measuring cycle for an object system to a specific initial value when a terminal which communicates with one system has changed the location thereof by a value more than a specific reference value, and determines whether or not the intensity of the signal or phase information measured in a source system which is in communication with the terminal has changed by a value higher than a specific value, by means of determining whether or not the terminal has changed the location thereof, under the condition mobile communication system using different wireless connection techniques coexist. | 04-05-2012 |
20120093000 | METHOD AND USER EQUIPMENT APPARATUS FOR RADIO RESOURCE MANAGEMENT IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus are provided for transmitting uplink control information. A UE identifies a resource allocated for transmission of the uplink control information. The UE monitors a downlink transmission channel during an active time when a DRX is configured. The UE starts or restarts a timer when a downlink transmission occurs during the active time. The UE transmits the uplink control information via the identified resource when the timer is running. | 04-19-2012 |
20120113818 | POWER HEADROOM REPORT METHOD AND APPARATUS FOR MOBILE COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION - A Power Headroom Report (PHR) method and apparatus for a mobile communication system supporting carrier aggregation are provided. The method for transmitting PHR of a terminal in a mobile communication system includes configuring, when a PHR is triggered for at least one activated serving cell, an extended PHR for the at least one activated serving cell, the PHR being triggered when a change of a downlink path loss in the at least one activated serving cell is greater than a predetermined threshold value, and transmitting the extended PHR. | 05-10-2012 |
20120113848 | METHOD AND APPARATUS FOR CALCULATING POWER HEADROOM IN CARRIER AGGREGATION MOBILE COMMUNICATION SYSTEM - A power headroom calculation method and apparatus of a User Equipment (UE) are provided for a primary cell Power Headroom (PH) calculation in a Long Term Evolution-Advanced (LTE-A) mobile communication system. The method includes determining whether an activated serving cell includes uplink data and/or uplink control signal to be transmitted, and determining PH of the activated serving cell according to whether the activated serving cell has the uplink data and/or uplink control signal. | 05-10-2012 |
20120157090 | METHOD AND DEVICE FOR SENDING AND RECEIVING A BROADCAST CONTROL CHANNEL IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and device for automatically optimizing the send parameters in a mobile communication system wherein, in order to optimize the BCCH reception performance, a terminal stores information relating to BCCH reception failure reasons or the number of instances of packet combination for BCCH reception, and this information is reported to a base station. | 06-21-2012 |
20120196599 | AREA-BASED ACCESS CONTROL METHOD FOR TERMINALS WHICH CARRY OUT M2M COMMUNICATIONS IN A WIRELESS COMMUNICATION SYSTEM - A regional access control method is provided in a Mobility Management Entity (MME) for network access for a User Equipment (UE) that performs Machine-to-Machine (M2M) communication. An access request message and location information of the UE are received from a base station. The access request message is transmitted to the MME in response to reception of the access request message at the base station from the UE. A location of the UE that is determined based on the location information of the UE, is registered in a Home Subscriber Server (HSS). An allowed list of the UE is obtained from the HSS. It is determined whether the location information of the UE is registered in the allowed list. | 08-02-2012 |
20120196645 | METHOD, APPARATUS, AND SYSTEM FOR REPORTING POWER HEADROOM IN A MOBILE COMMUNICATION SYSTEM - A method, apparatus, and system for efficiently reporting Power Headroom (PH) for optimizing uplink coverage are provided. A method in which user equipment reports power headroom in a mobile communication system includes receiving Power Headroom Report (PHR) configuration information including a PH threshold value from a first base station, determining whether to perform a PHR trigger by comparing the PH value, which indicates the available transmission power of the user equipment, with the PH threshold value, and, when the PH value is less than the PH threshold value, transmitting, to the first base station, PHR-related report information including information corresponding to an influence caused by the scheduling of the first base station. | 08-02-2012 |
20120213157 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SYSTEM INFORMATION IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus are provided for transmitting and receiving System Information (SI) in a mobile communication system. The method for receiving the SI by a User Equipment (UE) includes receiving, by the UE, at a fixedly scheduled sub-frame of a predetermined radio frame within a Primary Broadcast CHannel (P-BCH) transmission period, the SI including first partial bits of a System Frame Number (SFN), the first partial bits indicating a repeated value; and acquiring, by the UE, second partial bits of the SFN in the predetermined radio frame by decoding the P-BCH, the second partial bits indicating a different value. | 08-23-2012 |
20120214493 | COMMUNICATION 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 |
20120224470 | METHOD AND APPARATUS FOR SETTING RADIO LINK OF TERMINAL IN WHICH MULTIPLE CARRIERS ARE INTEGRATED IN MOBILE COMMUNICATION SYSTEM - The present invention relates to an apparatus and a method, wherein a terminal in which multiple carriers are integrated and sets a radio link by detecting and recovering radio link failure in a mobile communication system. The method comprises the steps of: setting a radio link in one serving cell in multiple carriers; checking a radio state of a primary carrier if failure of the radio link is detected; searching other cells adjacent to the serving cell by driving a timer, if the radio state is not matched with a preset radio condition; stopping the driving of the timer if the radio state is recovered while the timer is driven; and inactivating one of the multiple carriers. | 09-06-2012 |
20120257576 | METHOD AND APPARATUS FOR DETECTING CONTENTION DURING RANDOM ACCESS PROCEDURE IN A MOBILE COMMUNICATION SYSTEM - A method is provided for performing a random access procedure in a mobile communication system. The method includes receiving a random access response message from a Base Station (BS); transmitting a message including a Cell-Radio Network Temporary Identifier (C-RNTI) to the BS, if the C-RNTI exists; and determining that a contention for the random access procedure is resolved successfully, when User Equipment (UE)-specific control information addressable by the C-RNTI is received from the BS. | 10-11-2012 |
20120275418 | METHOD OF TRANSMITTING SCHEDULING REQUEST IN MOBILE COMMUNICATION SYSTEM AND TERMINAL APPARATUS FOR THE SAME - A method is provided for transmitting an uplink scheduling request in a mobile communication system. A terminal compares a lowest priority for permitting transmission of the scheduling request notified from a radio resource controlling node with a highest priority among service priorities corresponding to generated data or control signals, if data or control signals to be transmitted in the uplink are generated from an upper layer. The terminal transmits the scheduling request to the radio resource controlling node to thereby request the radio resource controlling node to allocate radio resources for transmitting the data or control signals, when the highest priority is greater than or equal to the lowest priority. | 11-01-2012 |
20120281633 | POWER HEADROOM REPORTING METHOD AND DEVICE FOR WIRELESS COMMUNICATION SYSTEM - Methods and apparatus are provided for reporting a Power Headroom (PH) of a User Equipment (UE) in a wireless communication system having a plurality of aggregated uplink carriers. A message to activate an uplink carrier is received. A predetermined time is awaited in order to trigger a Power Headroom Report (PHR). The PHR is triggered after the predetermined time has elapsed. | 11-08-2012 |
20120294287 | METHOD AND APPARATUS FOR SUPPORTING HANDOVER OF USER EQUIPMENT IN MOBILE COMMUNICATION SYSTEM - Defined is a handover procedure of a User Equipment (UE) for which multiple UpLink (UL) carriers requiring different UL Timing Advances (TAs) are aggregated in a mobile communication system. The handover procedure includes admitting execution of handover to a target cell of the UE at the request of a source cell, setting radio resource information to be used by the UE in the target cell and transmitting the set radio resource information to the source cell, determining whether a random access procedure, which is executed, among the multiple UL carriers, with a reference UL carrier or with an UL carrier to which the same UL TA as that of the reference UL carrier is applied, has been completed, and determining that a handover procedure of the UE has been successfully completed if the random access procedure has been completed, and determining that the handover procedure of the UE has failed if the random access procedure fails. | 11-22-2012 |
20120295616 | APPARATUS AND METHOD FOR PERFORMING CELL SELECTION TO HOME CELL OR PRIVATE NETWORK IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for performing cell selection to a Home cell or a Private network in a mobile communication system are provided, in which a User Equipment (UE) determines a candidate cell by measuring a serving cell and neighbor cells, receives an indicator indicating a Home cell or a Private network in system information from the candidate cell, determines whether the candidate cell is included in a Home cell or Private network list set in the UE, and selects the candidate cell if the candidate cell is included in the Home cell or Private network list. | 11-22-2012 |
20120300685 | METHOD AND APPARATUS FOR SUPPORTING DISCONTINUOUS RECEPTION OPERATION IN MOBILE COMMUNICATION SYSTEM - A method and an apparatus for supporting a discontinuous reception (DRX) operation in a Node B in a mobile communication system are provided. The method includes defining a second System Frame Number (SFN) where one cycle of a first SFN corresponds to one bit, transmitting information on the second SFN to a User Equipment (UE), determining a second SFN which is used to transmit a paging signal to the UE, determining a first SFN which is used to transmit the paging signal in the determined second SFN, and transmitting the paging signal to the UE at the determined first SFN. | 11-29-2012 |
20120307669 | METHOD AND APPARATUS FOR TRANSMITTING CHANNEL MEASUREMENT INFORMATION IN MOBILE COMMUNICATION SYSTEM - A method and apparatus for transmitting channel measurement information in a mobile communication system are disclosed. The method and apparatus enable a user equipment to log channel measurement information and transmit the same to a base station so as to enhance radio network performance and reduce processing complexity of the user equipment by removing unnecessary operations of the user equipment and preventing waste of radio network capacity during transmission of channel measurement information. | 12-06-2012 |
20120320842 | APPARATUS AND METHOD FOR ACCESSING RANDOM ACCESS CHANNEL IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method for accessing a Random Access Channel (RACH) at a low-power terminal in a wireless communication system are provided, in which resource allocation information is acquired according to used resource identification information included in system information broadcast from a Base Station (BS), and a random access preamble is transmitted to the BS according to the acquired resource allocation information. | 12-20-2012 |
20120322440 | MEASUREMENT APPARATUS AND METHOD FOR THE COMMUNICATION OF AN IDLE MODE DEVICE HAVING LOW MOBILITY IN A MOBILE COMMUNICATION SYSTEM - The present invention defines an efficient measurement method for idle mode M2M/MTC device with low/no mobility in a mobile communication system. An example of the mobile communication system to which the present invention is application is 3GPP UMTS mobile communication system and 3GPP LTE/LTE-A mobile communication system as the next generation mobile communication system under discussion in 3GPP. | 12-20-2012 |
20130003629 | PAGING METHOD AND APPARATUS FOR COMMUNICATION OF M2M/MTC DEVICE OPERATING IN HIGH POWER SAVING RECEPTION MODE IN A MOBILE COMMUNICATION SYSTEM, AND SYSTEM THEREOF - method is provided for communicating with a User Equipment (UE) supporting a High Power Saving Reception Mode (HPSRM) mode by an evolved Node B (eNB) in a wireless communication system. The method includes receiving Discontinuous Reception (DRX) cycle information from a network entity performing mobility management for the UE by the eNB communicating with the UE over a wireless link; and broadcasting system information including the DRX cycle information. The DRX cycle information is set longer than DRX cycle information of a UE non-supporting the HPSRM mode. By doing so, an efficient paging method for an UE operating in the HPSRM mode may be provided. | 01-03-2013 |
20130016690 | MOBILE COMMUNICATION SYSTEM, AND CARRIER MEASUREMENT METHOD IN THE MOBILE COMMUNICATION SYSTEMAANM Jeong; Kyeong InAACI Hwaseong-siAACO KRAAGP Jeong; Kyeong In Hwaseong-si KRAANM Van Lieshout; Gert JanAACI ApeldoornAACO NLAAGP Van Lieshout; Gert Jan Apeldoorn NL - The present invention defines a method for a terminal capable of aggregating multiple carriers to perform measurement to the carriers efficiently in a mobile communication system. The present invention is directed to the 3GPP LTE (Long Term Evolution or 3GPP LTE-A (LTE-Advanced) system that is currently discussed in the 3GPP (3 | 01-17-2013 |
20130064191 | WIRELESS COMMUNICATION SYSTEM AND RANDOM ACCESS METHOD THEREOF - A random access method of a User Equipment (UE) in a wireless communication system supporting carrier aggregation which allows transmitting data on multiple carriers is provided. A random access method for a wireless communication system supporting carrier aggregation according to the present invention includes receiving, at a terminal, Random Access Channel (RACH) selection information necessary for random access, the RACH selection information being transmitted by a base station; selecting, when the random access is triggered, an uplink carrier on which the random access is attempted based on the RACH selection information; and attempting the random access on the selected uplink carrier. | 03-14-2013 |
20130208689 | METHOD AND DEVICE FOR ACTIVATING SECONDARY CARRIER IN WIRELESS COMMUNICATION SYSTEM FOR USING CARRIER AGGREGATION TECHNIQUE - The present invention proposes a method for activating secondary carriers in addition to the primary carrier in a wireless communication system supporting carrier aggregation technology. Through the present invention, the UE sorts the operations for activating an SCell into two groups that are executed at different timings, thereby facilitating communication without malfunctioning. | 08-15-2013 |
20130210433 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SYSTEM INFORMATION IN BROADBAND WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for transmitting and receiving System Information (SI) of a femto base station in a wireless communication system are provided. In the method, an SI transmission point is determined using unique identification information of a femto base station itself and unique identification information of a macro base station with which the femto base station is associated. Each of user equipment and the macro base station generate a measurement gap pattern representing an SI reception point using the unique identification information of the femto base station and the unique identification information of the macro base station. SI is received from the femto base station according to the generated measurement gap pattern. | 08-15-2013 |
20130215787 | METHOD AND APPARATUS FOR A TERMINAL TO SELECT A CELL IN A HETEROGENEOUS NETWORK - The present invention relates to a cell selection method of a terminal in a heterogeneous network, and cell selection method of a terminal in a heterogeneous network according to the present invention includes receiving a measurement restriction pattern from a base station; and selecting a cell based on the measurement restriction pattern. According to an embodiment of the present invention, it is possible to select a cell accurately and efficiently. | 08-22-2013 |
20130223323 | METHOD AND DEVICE FOR RECEIVING A SUBFRAME IN DIFFERENT FORMS IN A WIRELESS COMMUNICATION SYSTEM - The present invention proposes a method for preventing, when two types of subframes (first subframe and second subframe) exist in a wireless communication system, a high version terminal from performing unnecessary operation for the second subframe. Through the present invention, the high version terminal skips unnecessary operation, resulting in reduction of unnecessary power consumption. | 08-29-2013 |
20140086171 | APPARATUS AND METHOD FOR FEEDING BACK CHANNEL QUALITY INFORMATION AND SCHEDULING APPARATUS AND METHOD USING THE SAME IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). In the OFDMA wireless communication system, forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced, and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station, sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted. | 03-27-2014 |
20140086172 | APPARATUS AND METHOD FOR FEEDING BACK CHANNEL QUALITY INFORMATION AND SCHEDULING APPARATUS AND METHOD USING THE SAME IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). In the OFDMA wireless communication system, forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced, and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station, sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted. | 03-27-2014 |
20140099959 | APPARATUS AND METHOD FOR PROVIDING HANDOVER SUPPORT INFORMATION IN MOBILE COMMUNICATION SYSTEM - An apparatus and method for providing handover support information in a mobile communication system are provided. A method for an Base Station (BS) to provide information necessary for measurement report trigger performance to a Mobile Station(MS) after the MS determines neighboring BSs in a mobile communication system includes, in a case where the MS is an active mode MS, providing a Time To Trigger (TTT) independently by a specific neighboring BS to the active mode MS and, in a case where the MS is an idle mode MS, providing a reselection time period (Treselection) independently by the specific neighboring BS to the idle mode MS. | 04-10-2014 |
20140328162 | METHOD AND APPARATUS FOR SETTING RADIO LINK OF TERMINAL IN WHICH MULTIPLE CARRIERS ARE INTEGRATED IN MOBILE COMMUNICATION SYSTEM - A method and apparatus for configuring a radio link of a terminal communicating via aggregated carriers including a primary cell and a secondary cell are provided. The method includes detecting a Radio Link Failure (RLF) for the secondary cell, deactivating the secondary cell, and reporting at least one of a measurement result of the secondary cell and a measurement result of neighboring cell of the secondary cell to a base station. The apparatus includes a transceiver for communicating with a base station, and a controller configured to detect a RLF for the secondary cell, to deactivate the secondary cell, and to report at least one of a measurement result of the secondary cell and a measurement result of neighboring cell of the secondary cell to the base station. | 11-06-2014 |