Patent application number | Description | Published |
20080198795 | METHOD AND APPARATUS FOR PROCESSING UPLINK DATA BY DRX-MODE TERMINAL IN MOBILE TELECOMMUNICATION SYSTEM - Disclosed is a method and apparatus for transmitting uplink data by a terminal performing a DRX operation in a mobile telecommunication system. According to the method and apparatus, when a UE transmits the uplink data, the UE variably controls given active and sleep periods in consideration of whether or not retransmission for the uplink data is performed, thereby more flexibly operating in the DRX mode. | 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 |
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 |
20080219204 | APPARATUS AND METHOD FOR REQUESTING PACKET RETRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM - A method for requesting packet retransmission in a wireless communication system is provided. The method includes checking, by a receiving-side Automatic Retransmission reQuest (ARQ) layer, sequence numbers of received packets to determine whether there is any missing packet, and starting a first timer in association with the missing packet; stopping the first timer upon receiving an Hybrid ARQ (HARQ) reception failure indicator corresponding to the missing packet, provided from a receiving-side HARQ layer; and stopping generation of a status report message corresponding to the missing packet, and waiting for an ARQ packet corresponding to the missing packet, retransmitted from a transmitting-side ARQ layer. | 09-11-2008 |
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 |
20080274749 | APPARATUS AND METHOD FOR ALLOCATING RESOURCES IN A MOBILE COMMUNICATION SYSTEM - A resource allocation method and apparatus for downlink transmission of a base station in a mobile communication system. The base station compares the number Ntx of data transmissions with the number Nper of available persistent resource allocations, and allocates resources by at least one of a persistent resource allocation scheme and a dynamic resource allocation scheme according to the comparison result. | 11-06-2008 |
20080285529 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING PILOT SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting a pilot signal in a wireless communication system. A reference cell scrambling code or one of a plurality of additional cell scrambling codes is selected for each combination of one of a plurality of first scrambling codes (PSCs) applied to a first synchronization channel (P-SCH) and one of a plurality of second scrambling codes (SSCs) applied to a second synchronization channel (S-SCH). It is determined whether to transmit the pilot signal using the reference cell scrambling code or one of the plurality of additional cell scrambling codes. The reference cell scrambling code or the additional cell scrambling code is generated according to the determination. The pilot signal is transmitted using the generated reference cell scrambling code or the additional cell scrambling code. | 11-20-2008 |
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 |
20090010173 | APPARATUS AND METHOD FOR DISCONTINUOUS RECEPTION IN MOBILE TELECOMMUNICATION SYSTEM - A communication apparatus and method for performing discontinuous reception in a mobile communication system is provided. The communication apparatus continues to turn on a receiver during a reception-on (Rx-on) period associated with persistent resource allocation to receives a packet, and receives a retransmission packet transmitted through the persistent resources at the Rx-on period spaced from the Rx-on period by a processing time of the retransmission packet given taking into account feedback information determined according to a reception error of the packet. | 01-08-2009 |
20090040976 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING PACKETS IN A MOBILE COMMUNICATION SYSTEM SUPPORTING HYBRID AUTOMATIC REPEAT REQUEST - An apparatus and method for transmitting and receiving packet data in a mobile communication system supporting Hybrid Automatic Repeat reQuest (HARQ), e.g., a method and apparatus for performing HARQ retransmission on a packet received through persistent resources where no HARQ process identifier is transmitted. HARQ soft combining is performed by providing a mapping relation between a packet received through persistent resources and a retransmitted HARQ packet. In addition, when there are several HARQ packets received through persistent resources at an arbitrary timing, which packet an arbitrary retransmission packet should be combined is determined, thereby enabling the corresponding processor to perform correct soft combining. This improves HARQ performance of persistent resources without increasing complexity of the reception apparatus. | 02-12-2009 |
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 |
20090059853 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PACKETS IN A MOBILE COMMUNICATION SYSTEM - A method for transmitting a packet over a radio channel in a mobile communication system. The method includes receiving first packets from an upper layer; checking a number of and a size of the first packets to be bundled in a second packet; generating the second packet using the first packets and a header including an indicator that indicates if the number of and a size of the first packets to be bundled in the second packet satisfy a predetermined condition; and transmitting the generated second packet via a lower layer. | 03-05-2009 |
20090092138 | APPARATUS AND METHOD FOR GENERATING AND PARSING MAC PDU IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for generating and parsing a MAC PDU in a mobile communication system are provided in which LCIDs of MAC SDUs to be multiplexed are checked, the length of an LF is determined for each of the MAC SDUs, referring to LF lengths predetermined for the LCIDs, a MAC header including the LCIDs and LFs of the determined lengths for the MAC SDUs is generated, and a MAC PDU is generated by attaching the MAC header to payload including the MAC SDUs. During the MAC header generation, if a padding size required for the MAC PDU generation calculated taking into account the absence of a last LF in the MAC header is larger than the length of the last LF, the last LF is included in the MAC header, the required padding size is recalculated, taking into account the inclusion of the last LF, and a padding is added according to the re-calculated padding size. | 04-09-2009 |
20090092202 | METHOD AND APPARATUS FOR ADJUSTING UPLINK DATA RATE IN A MOBILE COMMUNICATION SYSTEM - A method and UE apparatus are provided for adjusting an uplink data rate by a User Equipment (UE) in a mobile communication system. The method includes determining if a current state of a buffer is an empty state or a non-empty state; when the current buffer state is the non-empty state, comparing a ratio of a total of transmission data currently stored in the buffer to a total of Transport Formats (TFs) allocated during a predetermined number n of subframes with a predetermined threshold; setting indication information indicating satisfaction/non-satisfaction (‘happy bit(s)’) of an uplink data rate according to the comparison result; and transmitting the set indication information to a Node B. The UE apparatus comprises a multiplexing/demultiplexing device, a HARQ processor, a controller to set information indicating satisfaction/non-satisfaction in accordance with pre-set rules, an exemplary set of which is also provided. | 04-09-2009 |
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 |
20090180447 | WIRELESS COMMUNICATION SYSTEM FOR MONITORING WIRELESS LINKS DURING TRANSMISSION GAPS - Provided is a communication system in which a wireless access network communicates with a mobile station via a wireless link. One of the mobile station and the wireless access network proposes a plurality of candidate transmission gap configurations to the other of the mobile station and the wireless access network, and the other selects one of the candidate transmission gap configurations. | 07-16-2009 |
20100027460 | SIGNAL TRANSMISSION METHOD AND APPARATUS FOR USER EQUIPMENT IN MOBILE COMMUNICATION SYSTEM - A signal transmission method and apparatus of a user equipment for a mobile communication system is provided for improving data transmission reliability and efficiency by transmitting data based on precise discrimination of the uplink transmission resource assignment messages indicative of initial transmission and retransmission. A signal transmission method of a user equipment for a mobile communication system receives an uplink transmission resource assignment message from a base station determines whether a Hybrid Automatic Repeat reQuest (HARQ) buffer is empty, and when the HARQ buffer is empty, transmits to the base station a Media Access Control Protocol Data Unit (MAC PDU) generated with reference to information contained in the uplink transmission resource assignment message. | 02-04-2010 |
20100042886 | RETRANSMISSION RESOURCE ALLOCATION METHOD FOR WIRELESS COMMUNICATION SYSTEM - A retransmission resource allocation method and apparatus for a wireless communication system for allocating a retransmission resource using a semi-persistent resource allocation message indicating a retransmission resource allocation is provided. The method includes receiving, at a mobile terminal, a semi-persistent resource allocation message; determining whether the semi-persistent resource allocation message indicates a retransmission resource allocation or a semi-persistent resource allocation, based on usage information included in the semi-persistent resource allocation message; and executing, when the semi-persistent resource allocation message indicates the retransmission resource allocation, a retransmission operation based on resource assignment information included in the semi-persistent resource allocation message. | 02-18-2010 |
20100070815 | VIRTUAL EXTENSION OF CRC LENGTH - An apparatus and method for generating a Scheduling Assignment (SA), which reduces a probability of an incorrect action by a User Equipment (UE) in response to a reception of the SA, in a communication system wherein a base station transmits the SA being a first type or a second type and including at least one Information Element (IE). The method includes setting at least one bit in the at least one IE with an arbitrary value, if the SA is of the first type; setting the at least one bit in the at least one IE with a predetermined value, if the SA is of the second type; and setting any remaining bits in the at least one IE with arbitrary values. | 03-18-2010 |
20100110971 | METHOD AND APPARATUS FOR PROCESSING CONTROL MESSAGE WHICH REQUESTS RETRANSMITTING DATA - A method and an apparatus for processing a control message for a request of retransmission are provided. The method includes generating a First Missing Serial number (FMS) describing a serial number of a data unit having a lowest serial number among data units which are not received, determining whether a data unit having a serial number greater than the serial number described in the FMS exists due to an out of sequence among data units which are previously received, generating a bitmap indicating a reception of a plurality of data units having a serial number greater than the FMS, if a data unit which is out of sequence exists, and connecting and transmitting the FMS and the bitmap. | 05-06-2010 |
20100111039 | Method and apparatus for controlling discontinuous reception in mobile communication system - A method and apparatus is configured to control a discontinuous reception (DRX) in a mobile communication system. The method includes: interrupting the DRX operation when a radio resource control (RRC) connection reestablishment procedure is initiated; transmitting an RRC connection reestablishment request message from the user equipment to an evolved node B (ENB); receiving an RRC connection reestablishment message from the ENB to the user equipment; and resuming, if the received RRC connection reestablishment message contains new DRX setting information, the interrupted DRX operation according to the new DRX setting information. The DRX operation can be interrupted or resumed at a proper time point when an RRC connection is reestablished or reconfigured or a handover is performed, thereby reducing power consumption in the user equipment. | 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 |
20100118815 | DISCONTINUOUS RECEPTION CONTROL METHOD OF USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM - A Discontinuous Reception (DRX) control method and apparatus are provided for determining a start time of the duration period of DRX operation in a wireless communication system using a short DRX cycle and a long DRX cycle. A DRX control method of a user equipment of the present invention includes determining one of a long DRX mode and a short DRX mode, configuring, when the short DRX mode is selected, the short DRX mode with a start time determined based on short DRX parameters, and configuring, when the long DRX mode is selected, the long DRX mode with a start time determined based on long DRX parameters. | 05-13-2010 |
20100169733 | TRANSMISSION CONTROL METHOD FOR HARQ IN MOBILE COMMUNICATION SYSTEM - A transmission control method for HARQ is provided for improving HARQ performance in a mobile communication system. The transmission control method for Hybrid Automatic Repeat reQuest (HARQ) in a mobile communication system according to the present invention includes receiving an downlink resource assignment message; determining whether configured downlink assignment has been indicated to an HARQ entity since a previously received downlink assignment for a User Equipment's (UE's) Cell-Radio Network Temporary Identifier (C-RNTI) for the same HARQ process; maintaining, if the configured downlink assignment has not been indicated to the HARQ entity, the HARQ process; and processing, if the configured downlink assignment has been indicated to the HARQ entity, the downlink resource assignment message as a resource assignment message for initial transmission. | 07-01-2010 |
20100182973 | METHOD AND APPARATUS FOR TRANSMISSION IN BUNDLING MODE IN WIRELESS COMMUNICATION NETWORK - A method and apparatus for a transmission in a bundling mode are provided to prevent a conflict between a bundling transmission resource and other transmission resource in a wireless communication network. A bundling transmission method includes determining whether there is a transmission conflicting with a bundling transmission induced by an uplink grant regarding uplink transmission resources. If it is determined that there is a conflicting transmission, the method disregards at least one of the bundling transmission and the conflicting transmission. A bundling transmission apparatus includes a retransmission unit and a transmission control unit, which are configured to execute the bundling transmission method. | 07-22-2010 |
20100220717 | Method and apparatus for controlling rate of voice service in a mobile communication system supporting voice service via packet network - A method for controlling a rate of a voice service in a mobile communication system supporting the voice service via a packet network. The method includes the steps of receiving a control message at a terminal from a radio network controller (RNC); if the control message indicates control of a downlink rate, determining a downlink rate according to the control message; setting a Change Mode Request (CMR) field of an uplink Voice over Internet Protocol (VoIP) packet according to the downlink rate, and transmitting the uplink VoIP packet from the terminal to the RNC; if the received control message indicates control of an uplink rate, determining an uplink rate according to the control message; and generating an uplink VoIP packet including uplink voice data generated according to the determined uplink rate and frame type (FT) information indicating the determined uplink rate, and transmitting the uplink VoIP packet from the terminal to the RNC. | 09-02-2010 |
20100238830 | METHOD AND APPARATUS FOR TRANSMITTING A POWER HEADROOM REPORT OF A UE IN A WIRELESS COMMUNICATION SYSTEM - A method and an apparatus are provided for transmitting a Power Headroom Report (PHR) to base station by a User Equipment (UE), wherein the UE determines whether a received an uplink resource is a first uplink resource allocated for a new transmission after a Medium Access Control (MAC) reset, and starts a timer for reporting the PHR, if the allocated uplink resource is the first uplink resource allocated for the new transmission after the MAC reset. | 09-23-2010 |
20100246491 | OPERATING METHOD AND APPARATUS ACCORDING TO DATA DUPLICATE RETRANSMISSION IN MOBILE COMMUNICATION SYSTEM - An operating method and an apparatus according to data duplicate retransmission in a mobile communication system are provided. A method of a User Equipment (UE) according to data duplicate retransmission in a mobile communication system includes storing a Media Access Control Protocol Data Unit (MAC PDU) received from an Evolved Node B (ENB) in a soft buffer, decoding the MAC PDU, determining whether the decoding is a first successful decoding of data of the corresponding soft buffer, and determining whether to forward the decoded MAC PDU to an upper layer according to the determination result. | 09-30-2010 |
20100246497 | SELECTIVE COMBINING METHOD AND APPARATUS IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for performing duplicate avoidance of broadcast data packets in a (UE). The includes receiving a broadcast data packet from a plurality of cells; storing, if a sequence number of the received broadcast data packet does not fall within a reception window, the broadcast data packet in a buffer and updating the reception window based on the sequence number; determining, if the sequence number of the received broadcast data packet falls within the reception window, whether a broadcast data packet having the sequence number has previously been stored in the buffer; discarding the broadcast data packet, if the broadcast data packet has previously been stored in the buffer; and storing the broadcast data packet in the buffer, if the broadcast data packet has not previously been stored in the buffer. | 09-30-2010 |
20100303095 | APPARATUS AND METHOD FOR GENERATING AND PARSING MAC PDU IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for generating and parsing a MAC PDU in a mobile communication system are provided in which LCIDs of MAC SDUs to be multiplexed are checked, the length of an LF is determined for each of the MAC SDUs, referring to LF lengths predetermined for the LCIDs, a MAC header including the LCIDs and LFs of the determined lengths for the MAC SDUs is generated, and a MAC PDU is generated by attaching the MAC header to payload including the MAC SDUs. During the MAC header generation, if a padding size required for the MAC PDU generation calculated taking into account the absence of a last LF in the MAC header is larger than the length of the last LF, the last LF is included in the MAC header, the required padding size is recalculated, taking into account the inclusion of the last LF, and a padding is added according to the re-calculated padding size. | 12-02-2010 |
20100323744 | METHOD AND APPARATUS FOR CONTROLLING UPLINK TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM - A method and system are provided for controlling uplink transmission power in a wireless communication system. At least one of a plurality of downlink carriers and a plurality of uplink carriers are aggregated, and the plurality of downlink carriers and the plurality of uplink carriers are mapped between a User Equipment (UE) and a network in the wireless communication system. A message relating to uplink carrier transmission power is received at the UE from the network via a downlink carrier. Uplink transmission power of one or more uplink carriers is controlled in accordance with the message and aggregation and mapping of at least one of the downlink carrier and the one or more uplink carriers. | 12-23-2010 |
20110019568 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN MOBILE COMMUNICATION SYSTEM - A method and apparatus for transmitting/receiving data in a mobile communication system is provided. The method includes, when a status report is not received after a predetermined time elapses since a polling Packet Data Unit (PDU) is initially transmitted, generating a Radio Link Control (RLC) PDU indicating retransmission of the initially transmitted polling PDU, and transmitting the RLC PDU indicating the retransmission of the initially transmitted polling PDU. | 01-27-2011 |
20110045819 | METHOD AND APPARATUS FOR MEASURING RADIO RESOURCE USE PER TRAFFIC CLASS IN A WIRELESS COMMUNICATION SYSATEM - A method and apparatus for measuring a use of radio resources in a wireless communication system are provided. The method includes allocating radio resources to a plurality of transport blocks, and, if at least one transport block among the plurality of transport blocks overlaps at least one other transport block in terms of the radio resources, a use of the radio resources is measured by calculating a sum of a value determined by dividing the number of radio resources allocated to each of the plurality of transport blocks by the number of radio resources which are used by the at least one other transport block in a duplicate manner. | 02-24-2011 |
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 |
20110051664 | APPARATUS AND METHOD FOR RECEIVING PACKET DATA IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method for simultaneously receiving a plurality of Packet Data Units (PDUs) are provided. In a method of receiving a plurality of PDUs, the plurality of PDUs, each PDU having an associated Sequence Number (SN), are received, one of the plurality of PDUs is input into a reception buffer, a first variable is updated based on the SN of the PDU input into the reception buffer, wherein the first variable indicates the highest SN of PDUs input into the reception buffer, a determination is made if a timer is running, if the timer is not running, a determination is made if all of the received PDUs are input into the reception buffer, and, if any of the received PDUs is not input into the reception buffer, a next PDU to be input into the reception buffer is awaited. | 03-03-2011 |
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 |
20110164583 | METHOD AND APPARATUS FOR DISCONTINUOUS RECEPTION IN MOBILE TERMINAL - A method and apparatus for discontinuous reception (DRX) in a mobile terminal are disclosed. The discontinuous reception method includes: receiving DRX information for DRX operation based on DRX cycles having an on-duration and an off-duration; determining, when semi-persistent resources are allocated, an offset of the DRX cycles so that the time of semi-persistent resource allocation belongs to the on-duration of one DRX cycle; checking whether a packet is successfully received through the allocated semi-persistent resources; and performing, when a packet is successfully received, DRX operation according to the received DRX information and determined offset. The discontinuous reception apparatus performs discontinuous reception using the method. | 07-07-2011 |
20110171985 | APPARATUS AND METHOD FOR ENABLING LOW LATENCY TRANSMISSIONS IN THE UPLINK OF A COMMUNICATION SYSTEM - Methods and apparatus are provided for a User Equipment (UE) to transmit signals in response to the reception of a Downlink Control Information (DCI) format transmitted from a base station of a communication system. The DCI format may provide only the frequency resources for the transmission of signals by the UE, while other parameters associated with the transmission of signals by the UE may be either predetermined or known to the UE through other signaling from the base station. The frequency resources used for the transmission of signals by the UE may be a sub-set of the frequency resources indicated by the DCI format and the determination of this sub-set by the UE may be either deterministic or pseudo-random. | 07-14-2011 |
20110199910 | METHOD AND APPARATUS FOR CONTROLLING DISCONTINUOUS RECEPTION IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for controlling Discontinuous Reception (DRX) by a User Equipment (UE) in a wireless communication system is provided. The UE receives a DRX configuration parameter from an evolved Node B (eNB), and determines whether to start an on-duration timer based on the DRX configuration parameter, after a change in DRX cycle is completed in a subframe, thereby preventing system performance degradation caused by transmission mismatch between the eNB and the UE. | 08-18-2011 |
20110243008 | COMPONENT CARRIER ACTIVATION METHOD AND APPARATUS IN A CELLULAR COMMUNICATION SYSTEM - A method and apparatus for activating a deactivated Component Carrier in a cellular communication system supporting carrier aggregation. The method includes receiving, from a Base Station (BS), UpLink (UL) scheduling information for a UL CC in a deactivated state; determining whether a DownLink (DL) CC associated with the UL CC is activated; and activating the DL CC, when the DL CC is not activated. | 10-06-2011 |
20110294508 | APPARATUS AND METHOD FOR SUPPORTING MOBILITY IN A HETEROGENEOUS WIRELESS COMMUNICATION SYSTEM - An apparatus and method in a heterogeneous wireless communication system reconnect a Mobile Station (MS) to a previously connected cell upon occurrence of a Radio Link Failure (RLF) in a current cell when a portion of a coverage of the second cell is included in a coverage of the first cell. A Mobile Station (MS) stores system information of a first Base Station (BS) of a first cell when performing handover from the first cell to a second cell. When changed system information of the first BS is received from a second BS of the second cell, the MS updates the stored system information using the changed system information. When detecting that a connection with the second cell is lost prior to a handover from the second cell, the MS performs reconnection to the first BS using the stored system information. | 12-01-2011 |
20110310781 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING UPLINK DATA IN MOBILE COMMUNICATION SYSTEM - A method for transmitting uplink data using multiple carriers by a User Equipment (UE) in a mobile communication system is provided. The method includes determining a first maximum transmission power indicating a maximum transmission power for each carrier and a second maximum transmission power indicating a maximum transmission power for all carriers based on information for setting transmission power, received from an evolved Node B (eNB), determining a minimum value from among a required transmission power and the first maximum transmission power as an uplink transmission power, for each carrier, scaling the determined uplink transmission powers so that a sum of the uplink transmission powers is less than or equal to the second maximum transmission power, and transmitting the uplink data based on the scaled uplink transmission powers. | 12-22-2011 |
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 |
20120033597 | METHOD AND APPARATUS FOR PROCESSING UPLINK DATA BY DRX-MODE TERMINAL IN MOBILE TELECOMMUNICATION SYSTEM - Disclosed is a method and apparatus for transmitting uplink data by a terminal performing a DRX operation in a mobile telecommunication system. According to the method and apparatus, when a UE transmits the uplink data, the UE variably controls given active and sleep periods in consideration of whether or not retransmission for the uplink data is performed, thereby more flexibly operating in the DRX mode. | 02-09-2012 |
20120039264 | METHOD FOR ALLOCATING RESOURCES IN WIRELESS COMMUNICATION SYSTEM AND SYSTEM THEREOF - This invention relates to a method for allocating resources in a wireless communication system and a system thereof. The disclosed method comprises steps for: allowing a user's terminal to receive information about the wireless transmission resources among semi-permanent transmission resources; performing CRC-calculation by receiving a message about the allocation of the semi-permanent transmission resources based on the received information; verifying the validity of the message by comparing the information about the wireless resources indicated in the received message with the received information about the wireless transmission resources; and receiving data as the transmission resources indicated in the message if there is no error in the verification. | 02-16-2012 |
20120044905 | METHOD AND APPARATUS FOR PROCESSING REVERSE TRANSMISSION RESOURCES IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for processing reverse transmission resources of a user terminal in a mobile communication system. When receiving a plurality of grants, the method and apparatus sum resources allocated by the grants, distribute the summed resources to logical channels, map the resources distributed by the logical channels and the logical channels to MAC PDUs according to the data sizes of the MAC PDUs, and allocate the resources distributed by the mapped logical channels. | 02-23-2012 |
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 |
20120188971 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING PACKETS IN A MOBILE COMMUNICATION SYSTEM SUPPORTING HYBRID AUTOMATIC REPEAT REQUEST - An apparatus and method for transmitting and receiving packet data in a mobile communication system supporting Hybrid Automatic Repeat reQuest (HARQ), e.g., a method and apparatus for performing HARQ retransmission on a packet received through persistent resources where no HARQ process identifier is transmitted. HARQ soft combining is performed by providing a mapping relation between a packet received through persistent resources and a retransmitted HARQ packet. In addition, when there are several HARQ packets received through persistent resources at an arbitrary timing, which packet an arbitrary retransmission packet should be combined is determined, thereby enabling the corresponding processor to perform correct soft combining This improves HARQ performance of persistent resources without increasing complexity of the reception apparatus. | 07-26-2012 |
20120195240 | Method and apparatus for discontinuously receiving packet in a mobile communication system - A method for receiving a packet by a terminal in a mobile communication system including a base station providing a packet, and a terminal that discontinuously receives a packet from the base station in Discontinuous Reception (DRX) cycles each having an active period and a sleep period. The packet reception method includes receiving, from the base station, configuration information for a DRX service, including a DRX cycle length; setting, as a starting point of the DRX cycle, a point at which a first packet is received from the base station; receiving a packet from the base station for an active period at the beginning of the starting point; and transitioning to a sleep period and waiting for a next active period. | 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 |
20120218963 | METHOD AND DEVICE FOR PROCESSING HARQ FEEDBACK IN A MOBILE COMMUNICATION SYSTEM - A device and method for handling HARQ feedback in a mobile communication system are disclosed. The HARQ feedback handling method includes: analyzing a control message from a base station to recognize presence of HARQ feedback relationships between downlink carriers and uplink carriers; | 08-30-2012 |
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 |
20120275381 | METHOD AND APPARATUS FOR PERFORMING CONTENTION-BASED ACCESS IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and apparatus in which a terminal performs contention-based access in a mobile communication system, wherein the method comprises: a sensing step of sensing whether or not contention-based access is allowed for at least one logical channel; a receiving step of receiving a contention-based reverse grant from a base station; and a transmitting step of transmitting data to the base station through the logical channel for which the contention-based access is allowed. According to the present invention, contention-based access can be efficiently performed, and the reliability of transmission can be ensured. | 11-01-2012 |
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 |
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 |
20120320760 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA USING CONTENTION-BASED ACCESS IN MOBILE COMMUNICATION SYSTEM - A method and apparatus is provided for transmitting and receiving data using a Contention-Based (CB) access to prevent successive collisions due to an HARQ operation and improve the probability of successful reception in a mobile communication system. In a method for transmitting data using a CB access, it is determined whether it is possible to transmit data provided from an upper layer to a Node B using a CB access method. If it is possible to transmit the data using the CB access method, a CB grant is acquired from the Node B. Upon acquiring the CB grant, a transmit power is determined by selecting a smaller value among a value obtained by adding a predetermined first margin value to an uplink power Required_uplink_power required to transmit the data, and a maximum transmit power of a UE. | 12-20-2012 |
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 |
20130010712 | APPARATUS AND METHOD FOR PERFORMING CONTENTION BASED ACCESS IN MOBILE COMMUNICATION SYSTEM - Disclosed is a method of performing a contention based access in a UE of a mobile communication system. The method includes: triggering a BSR to an ENB if data to be transmitted to the ENB occurs; and triggering the contention based access if the BSR has been triggered. The method can minimize collision between signals transmitted in the uplink by multiple UEs through contention based transmission resources in a mobile communication system. | 01-10-2013 |
20130028223 | METHOD AND APPARATUS FOR PROCESSING SCHEDULING INFORMATION IN MOBILE COMMUNICATION SYSTEM - A method and an apparatus for processing scheduling information in a terminal into which a plurality of forward carriers and reverse carriers are aggregated are provided. The method includes receiving a control message from a base station, the control message including information on a reverse carrier added by the carrier aggregation, and determining a new buffer state table to be used for reporting the state of buffers to the base station, based on the information included in the control message. | 01-31-2013 |
20130058233 | METHOD AND APPARATUS FOR ACTIVATING CARRIERS IN MOBILE COMMUNICATION SYSTEM - A method for activating a carrier by a User Equipment (UE) in a mobile communication system supporting carrier aggregation is provided. The UE receives a Down-Link (DL) assignment from an Evolved Node B (ENB), and determines whether to activate a carrier based on the DL assignment. By doing so, the UE may perform carrier activation rapidly and efficiently. | 03-07-2013 |
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 |
20130095796 | METHOD AND SYSTEM FOR DELIVERING SMS (SHORT MESSAGE SERVICE) MESSAGES IN A MOBILE COMMUNICATION SYSTEM - A method and system for delivering data are provided. The method includes sending, by a User Equipment (UE), to an evolved Node-B (eNB) a service request message for requesting data when setting up Radio Resource Control (RRC) connection using a RRC connection complete message, sending, by the eNB, the received service request message to a Mobile Management Entity (MME) using an initial UE message, sending, by the MME, an ‘initial context setup for signaling’ message that does not include information about data bearers, to the eNB, upon receiving the initial context setup message, setting up, by the eNB, Access Stratum (AS) security with the originating UE and performing, by the originating UE, Non Access Stratum (NAS) security with the MME, and upon completion of the NAS security process with the MME, transmitting, by the originating UE, the data to the MME using an uplink NAS transport message. | 04-18-2013 |
20140112255 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING STATUS REPORT COMPRISING RECEIVED STATUS OF PACKET DATA IN A MOBILE COMMUNICATION SYSTEM - A method for transmitting packet data units Packet Data Units (PDUs) at a PDU transmitter in a communication system is provided. The method includes transmitting a first PDU comprising a PDU header and a data portion, receiving Negative Acknowledgement NACK information for the first PDU, segmenting the first PDU to form one or more PDU segments if a size of a second PDU for retransmission is smaller than a size of the first PDU, wherein each of the one or more PDU segment comprises a PDU segment header and a data portion, and transmitting the one or more PDU segment to a PDU receiver. | 04-24-2014 |
20140157075 | METHOD FOR ALLOCATING RESOURCES IN WIRELESS COMMUNICATION SYSTEM AND SYSTEM THEREOF - This invention relates to a method for allocating resources in a wireless communication system and a system thereof The disclosed method comprises steps for: allowing a user's terminal to receive information about the wireless transmission resources among semi-permanent transmission resources; performing CRC-calculation by receiving a message about the allocation of the semi-permanent transmission resources based on the received information; verifying the validity of the message by comparing the information about the wireless resources indicated in the received message with the received information about the wireless transmission resources; and receiving data as the transmission resources indicated in the message if there is no error in the verification. | 06-05-2014 |
20140192775 | METHODS AND APPARATUS FOR INTER-ENB CARRIER AGGREGATION - A method and apparatus for connecting to a secondary enhanced NodeB. A transceiver configured to receive a Radio Resource Control (RRC) message from a Master enhanced NodeB (MeNB). The RRC message comprises a dedicated random access resources configuration for the UE to perform random access to a cell associated with a Secondary enhanced NodeB (SeNB) for a purpose of an addition of the SeNB, and an identification of the cell to which the random access is to be performed. Responsive to receiving the RRC message, command the Media Access Control (MAC) to trigger the random access for the addition of the SeNB to the cell with the identification indicated in the RRC message with the random access resources indicated in the RRC message. The MeNB is an eNB which the UE connects to initially and which acts as mobility anchor. | 07-10-2014 |
20140220996 | METHOD AND APPARATUS FOR TRANSMISSION IN BUNDLING MODE IN WIRELESS COMMUNICATION NETWORK - A method and apparatus for a transmission in a bundling mode are provided to prevent a conflict between a bundling transmission resource and other transmission resource in a wireless communication network. A bundling transmission method includes determining whether there is a transmission conflicting with a bundling transmission induced by an uplink grant regarding uplink transmission resources. If it is determined that there is a conflicting transmission, the method disregards at least one of the bundling transmission and the conflicting transmission. A bundling transmission apparatus includes a retransmission unit and a transmission control unit, which are configured to execute the bundling transmission method. | 08-07-2014 |
20140233471 | METHOD AND APPARATUS FOR INITIATING COMMUNICATIONS ON A SHARED CHANNEL IN A MOBILE COMMUNICATIONS SYSTEM - A method and apparatus for initiating communications on a shared channel in a mobile communication system are provided. A user equipment transmits an uplink signal for requesting communications on the shared channel to a Node B, and waits for a delay duration without monitoring a downlink after transmitting the uplink signal. When the delay duration has elapsed, the user equipment monitors the downlink during a valid period and determines whether a downlink signal responding to the uplink signal is received in a transmission time interval within the valid period. When the downlink signal is received in the valid period, the user equipment transmits and receives data on the shared channel. | 08-21-2014 |
20140301264 | METHOD AND APPARATUS FOR CONTROLLING DISCONTINUOUS RECEPTION IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for controlling Discontinuous Reception (DRX) by a User Equipment (UE) in a wireless communication system is provided. The UE receives a DRX configuration parameter from an evolved Node B (eNB), and determines whether to start an on-duration timer based on the DRX configuration parameter, after a change in DRX cycle is completed in a subframe, thereby preventing system performance degradation caused by transmission mismatch between the eNB and the UE. | 10-09-2014 |
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 |
20150078192 | METHOD AND APPARATUS FOR ACTIVATING CARRIERS IN MOBILE COMMUNICATION SYSTEM - A method and apparatus of a terminal and a base station in a mobile communication system are provided. The method includes receiving measurement information including a measurement interval from a base station, determining a measurement period based on a discontinuous reception (DRX) cycle if a carrier is activated, determining the measurement period based on the received measurement interval if the carrier is deactivated, and generating a filtered measurement result for the carrier based on the measurement period. | 03-19-2015 |
20150078286 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA USING PLURALITY OF CARRIERS IN MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for transmitting and receiving data using a plurality of carriers in a mobile communication system. The communication method by a terminal according to one embodiment of the present invention includes the steps of: receiving a secondary cell (SCell) adding command including setting information on an SCell to be added from a primary serving cell (PCell); transmitting a preamble to the SCell to be added; receiving a random access response message (RAR) for the SCell to be added; and, if the SCell adding command includes an indicator indicating that a first base station to which the SCell to be added belongs and a base station to which the PCell belongs are different from each other, applying parameters included in the RAR to the SCell that transmits the RAR. According to the embodiment of the present invention, by aggregating carriers between different base stations, a terminal can have increased chances of transmitting and receiving data at high speed through the carrier aggregation. | 03-19-2015 |
20150079911 | METHOD AND APPARATUS FOR ACTIVATING CARRIERS IN MOBILE COMMUNICATION SYSTEM - A method for measuring a signal of a deactivated cell by a terminal in a mobile communication system supporting carrier aggregation is provided. The method includes receiving measurement information including a measurement interval for the deactivated cell, from a base station, acquiring a measurement period using the measurement interval, measuring the signal of the deactivated cell, and generating a filtered measurement result based on the measurement period. | 03-19-2015 |