Patent application number | Description | Published |
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 |
20090040969 | Method and Apparatus for Non-Scheduled Transmission for Packet Service in a Mobile Communication System - A method and apparatus for non-scheduled transmission for a packet service in a mobile communication system are provided. A plurality of allowed maximum packet sizes are defined for the non-scheduled transmission and a UE selects one of the maximum packet sizes under circumstances and sends packets according to the selected maximum packet size in a non-scheduled transmission mode. | 02-12-2009 |
20090154408 | METHOD AND APPARATUS FOR TRANSMITTING SIP DATA OF IDLE MODE UE IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus are provided for transmitting a Session Initiation Protocol (SIP) message by a User Equipment (UE) in an idle mode in an Internet Protocol Multimedia Subsystem (IMS) system. The UE transmits one combined message of an AS control message and a NAS control message including information indicating transmission of an SIP message, thereby having an effect on an upper node to reduce a delay due to message processing. | 06-18-2009 |
20090219843 | MOBILE COMMUNICATION METHOD AND SYSTEM FOR SIGNALLING INFORMATION RELATING TO NETWORK'S CAPABILITIES - A mobile communications method and system for signalling information between a mobile terminal and a network element of a mobile communications network. The mobile terminal transmits information relating to the desirability and/or possibility to support Voice Call Continuity (VCC), to the network element during a communication, and the network element receives the information from the mobile terminal to use the information as a basis for deciding whether or not to anchor a call of the mobile terminal. | 09-03-2009 |
20100074216 | METHOD OF MANAGING RADIO RESOURCES AND NODE B APPARATUS IMPLEMENTING THE SAME - A method of managing radio resources and a Node B implementing the same are provided. If the total radio resources used in a cell exceed target radio resources signaled by an RNC, uplink rates are equally allocated to primary UEs and non-primary UEs by controlling the signal strengths of the primary and non-primary UEs. | 03-25-2010 |
20100254321 | METHOD AND APPRATUS FOR BUFFER STATUS REPORT IN MOBILE COMMUNICATION SYSTEM - Disclosed is a method and an apparatus for periodically reporting the buffer status in a mobile communication system. If there is a possibility that a transmission resource will be allocated to the UE, it stands by for a predetermined period of time until a transmission resource is allocated instead of directly transmitting a buffer status report so that, if possible, the buffer status report message is piggy-backed onto uplink data and transmitted. | 10-07-2010 |
20110171988 | METHOD AND APPARATUS FOR TRANSMITTING INFORMATION ABOUT AVAILABLE POWER OF TERMINAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting power headroom information by a terminal in a mobile communication system, in which power headroom information is generated and transmitted if a change in power headroom is greater than or equal to a predetermined threshold and a total amount of data stored in a buffer of the terminal is greater than or equal to a predetermined threshold. | 07-14-2011 |
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 |
20120231794 | METHOD FOR MEASURING HOME CELL IN MOBILE COMMUNICATION SYSTEM - Disclosed is method for measuring a home cell in a mobile telecommunications system, comprising acquiring, at a network, position data indicative of the position of a first user equipment, determining whether the first user equipment is close to the home cell by using the acquired position data, sending a cell measurement control message from the network to the first user equipment via a base station specifying measurements of said home cell, performing a fine position measurement at the first user equipment, determining at the first user equipment whether the first user equipment is close to the home cell, based on said fine position measurement; and taking measurements of said home cell at the first user equipment when the first user equipment is close to the home cell. | 09-13-2012 |
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 |
20120314637 | APPARATUS AND METHOD FOR DISCONTINUOUS DATA RECEPTION IN WIRELESS COMMUNICATION SYSTEM - Disclosed in a method of discontinuous data reception in a mobile communication system. The method includes: receiving downlink data and decoding the received downlink data by the UE; when the decoding is not successful, starting a timer for receiving retransmitted data; when the downlink data has been received by a configured downlink assignment, operating a downlink carrier, through which the downlink data has been received, in an active time; and when the downlink data has been received by a dynamic transmission resource and the downlink carrier, through which the downlink data has been received, is different from a downlink carrier, through which a scheduling command for the downlink data has been received, operating the downlink carrier, through which the scheduling command for the downlink data has been received, and the downlink carrier, through which the downlink data has been received, in an active time. | 12-13-2012 |
20130100939 | METHOD AND APPARATUS FOR LAYER 2 ARQ FOR PACKETS - A method and a transmitter are provided for performing packet ARQ in a communication system. A first RLC PDU is generated. The first RLC PDU includes polling information having a predetermined bit, when there is no subsequent RLC PDU transmission after transmission of the first RLC PDU. A timer is started or restarted when the first RLC PDU is transmitted to a receiver. The polling information having a predetermined bit is transmitted when the timer expires. | 04-25-2013 |
20130170453 | 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. | 07-04-2013 |
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 |
20130235780 | METHOD AND APPARATUS FOR OPTIMIZING POWER CONSUMPTION OF A TERMINAL IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and to an apparatus for optimizing the power consumption of a terminal in a mobile communication system. The method for optimizing power consumption of a terminal in a mobile communication system comprises: a determination step of determining whether there is a need for changing a configuration for a discontinuous reception operation of the terminal; and a transmission step of transmitting, to a base station, a request message for a change in the discontinuous reception operation, if it is determined that the change is needed. | 09-12-2013 |
20130250899 | METHOD AND APPARATUS FOR ALLOCATING RADIO RESOURCE USING RANDOM ACCESS PROCEDURE IN A MOBILE COMMUNICATION SYSTEM - A method for transmitting a random access preamble using a random access procedure in a mobile communication system. The random access preamble transmission method includes selecting, upon triggering of the random access procedure, one of random access preamble sets predefined between a User Equipment (UE) and an Evolved Node B (ENB) according to whether a radio channel condition is greater than a radio channel condition threshold and a size of a message that the UE will transmit after transmission of the random access preamble is greater than a minimum message size, randomly selecting a random access preamble from the selected random access preamble set, and transmitting the selected random access preamble to the ENB over a random access channel. | 09-26-2013 |
20130265924 | METHOD AND APPARATUS FOR DISCONTINUOUS RECEPTION OF CONNECTED TERMINAL IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for controlling an active time period during a Discontinuous Reception (DRX) operation in a User Equipment (UE) in a mobile communication system. The method includes awaking, by the UE, at a start position of the active time period; receiving a control signal indicating that the active time period should be terminated; terminating the active time period in response to the control signal; and entering a sleep state. | 10-10-2013 |
20130286883 | METHOD AND APPARATUS FOR EFFICIENTLY CONTROLLING INTER-CELL INTERFERENCE POWER IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for efficiently controlling inter-cell interference power in a wireless communication system. According to the present invention, a measurement method to be performed by a terminal in a wireless communication system comprises the following steps: receiving, from a base station, an RRC connection reestablishment message containing pattern information for measuring a serving cell or an adjacent cell; measuring, for an object to be measured indicated by said RRC reestablishment message, the serving cell or adjacent cell using the pattern information; and reporting the result of the measurement to the base station. | 10-31-2013 |
20130308574 | METHOD OF TRANSMITTING SCHEDULING REQUEST IN MOBILE COMMUNICATION SYSTEM AND TERMINAL APPARATUS FOR THE SAME - A method and apparatus are provided for transmitting an uplink scheduling request in a mobile communication system. Scheduling request transmission cycles are set according to priorities between a terminal and a radio resource controlling node. The terminal transmits the scheduling request to the radio resource controlling node according to a scheduling request transmission cycle corresponding to a highest priority among priorities corresponding to uplink data or uplink control signals, if the uplink data or the uplink control signals are generated from an upper layer. The terminal receives scheduling information from the radio resource controlling node, and determines whether resource allocation information is included in the scheduling information. The terminal cyclically transmits the scheduling request to the radio resource controlling node in the scheduling request transmission cycle, if the resource allocation information is not included in the scheduling information. | 11-21-2013 |
20130322387 | 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. | 12-05-2013 |
20130343330 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING PACKETS IN A MOBILE COMMUNICATION SYSTEM SUPPORTING HYBRID AUTOMATIC REPEAT REQUEST - An apparatus and method are provided for operating Hybrid Automatic Repeat reQuest (HARQ) in a mobile communication system. The method includes receiving a number of HARQ processes of a persistent resource allocation and persistent resource allocation interval information; receiving data according to the persistent resource allocation interval information; calculating a HARQ process IDentifier (ID) using the number of HARQ processes of the persistent resource allocation, the persistent resource allocation interval information, and time information; and associating a HARQ process with the calculated HARQ process ID. | 12-26-2013 |
20140023030 | METHOD AND DEVICE FOR TRANSMITTING RANDOM ACCESS AND OTHER UPLINK CHANNELS OF OTHER CELL IN MOBILE COMMUNICATION CELL IN MOBILE COMMUNICATION - The present invention relates to a transmission of a random access in a specific cell from a plurality of serving cells in a mobile communication system using a carrier aggregation technology, and a method for efficiently transmitting uplink channels other than the random access in another cell. In particular, the method for a terminal to transmit an uplink channel to a base station comprises the steps of: confirming whether an uplink channel for a second carrier having an uplink timing different from a first carrier is included in a subframe transmitting a Random Access Preamble for the first carrier; if included, confirming whether the sum of the electric power required for the transmission of the random access preamble and the electric power required for the transmission of the uplink channel exceeds the maximum transmission electric power of the terminal; and, if exceeding, transmitting the random access preamble preferentially before the uplink channel. In addition, the terminal for transmitting an uplink channel to a base station comprises: a transmitter/receiver for transmitting/receiving a signal to/from the base station; and a control unit for confirming whether the uplink channel for a second carrier having an uplink timing different from a first carrier is included in a subframe for transmitting a random access preamble for the first carrier, and if included, confirming whether the sum of the electric power required for transmitting the Random Access Preamble and the electric power required for transmitting the uplink channel exceeds the maximum transmission electric power of the terminal, and if exceeding, controlling the transmission so that the random access preamble is preferentially transmitted before the uplink channel. | 01-23-2014 |
20140023055 | METHOD AND DEVICE FOR CARRIER ACTIVATION IN CARRIER AGGREGATION SYSTEM - The present invention relates to a method and a device for cell activation in a carrier aggregation system, and the method for activating a cell of a terminal according to one embodiment of the present invention comprises: a step for receiving an activation message of a first cell; a step for activating the first cell when the message of the first cell is received; an information obtaining step for obtaining uplink activation information of the first cell; and a transmission determination step for determining whether to execute an uplink transmission according to the uplink activation information. According to an embodiment of the present invention, efficient carrier management plan can be provided. | 01-23-2014 |
20140029563 | METHOD AND APPARATUS FOR USER EQUIPMENT IN BATTERY SAVING MODE TRANSMITTING REVERSE DIRECTION CONTROL SIGNAL IN MOBILE COMMUNICATION SYSTEM - The present disclosure relates to a method and apparatus for a user equipment to transmit control signals to a base station in a wireless communication system supporting discontinuous reception (DRX). In particular, the method for a user equipment to transmit control signals to a base station includes: receiving a downlink control channel indicating new uplink or downlink transmission in a first period preset with reference to the last subframe of an active time; and selectively skipping transmission of a control signal in a preset second period starting from a subframe at which the downlink control channel is received. In addition, a user equipment transmitting control signals to a base station includes: a transceiver unit to send and receive signals to and from the base station; and a control unit determining, when a downlink control channel indicating new uplink or downlink transmission is received by the transceiver unit in a first period preset with reference to the last subframe of an active time, whether to selectively transmit a control signal in a preset second period starting from a subframe at which the downlink control channel is received. | 01-30-2014 |
20140036685 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for transmitting/receiving data, and a method for a user equipment transmitting data, according to one embodiment of the present invention, comprises: a step of determining conditions for determining whether a condition for transmitting short data is satisfied, when data to be transmitted is generated; and a step of including the data to be transmitted in a radio resource control (RRC) connection setup completion message and transmitting same, when the condition for transmitting the short data is satisfied. According to one embodiment of the present invention, the problem of network overload can be prevented by reducing signaling overhead when processing small packets, which are generated intermittently, in the mobile communication system, and an apparatus and a method for enhancing battery performance in the user equipment can be effectively provided. | 02-06-2014 |
20140036847 | 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 are provided. A method performed by the UE includes determining, when a signal indicative of a resolution of contention in a RACH procedure is received from a network before a contention resolution timer expires, that the RACH procedure has been successfully completed; receiving, from the network, after the successful completion of the RACH procedure, a UE information transmit request; and transmitting, to the network, in response to receipt of the UE information transmit request, a message including contention information of the completed RACH procedure. | 02-06-2014 |
20140071947 | METHOD AND APPARATUS FOR PERFORMING HANDOVER USING PACKET DATA CONVERGENCE PROTOCOL (PDCP) REORDERING IN MOBILE COMMUNICATION SYSTEM - Improving communication efficiency in handover re-establishing an ARQ entity in a mobile communication system is disclosed. The method includes transmitting first Packet Data Convergence Protocol (PDCP) Packet Data Units (PDUs) correctly received from the source cell, together with a special indication requiring reordering of the first PDCP PDUs, from a Radio Link Control (RLC) receiving buffer to a PDCP receiving entity when a handover command message from a source cell to a target cell is received; buffering the first PDCP PDUs in a PDCP PDU reordering buffer by the PDCP receiving entity in response to the special indication; and when a second PDCP PDU is received from the target cell through a new RLC receiving entity for the target cell, outputting third PDCP PDUs up to a PDCP PDU before a first missing PDCP PDU having a sequence number higher than that of the second PDCP PDU from the PDCP reordering buffer. In the method, a PDCP entity performs reordering, thereby improving efficiency of communication. | 03-13-2014 |
20140092812 | METHOD AND APPARATUS FOR APPLYING A TIME ALIGNMENT TIMER IN A WIRELESS COMMUNICATION SYSTEM USING A CARRIER AGGREGATION TECHNIQUE - Operation of a terminal for determining which time alignment timer is applied to a certain condition when specific timers operate for each carrier-wave group in the event a wireless communication system using carrier aggregation techniques. A terminal performs communication without malfunctions using a timer suitable for a certain condition. The terminal operates the timer by receiving, from a base station, a message including a timing advance command and an index on a timing advance group (TAG), operating the timer for the TAG, the index has a value of 00 when the TAG includes a first cell. A terminal operates a timer by operating a first timer for a TAG including a first cell, operating a second timer upon receipt of a timing advance command for a second TAG that does not include the first cell, and, if the first timer has expired, deeming the second timer to also be expired. | 04-03-2014 |
20140099940 | METHOD AND APPARATUS FOR EFFICIENTLY CONTROLLING AN MDT IN A PLURALITY OF PLMNS - The present invention relates to a method and apparatus for efficiently controlling a minimization of drive test (MDT) in a plurality of public land mobile networks (PLMNs). The method for controlling an MDT of a terminal according to one embodiment of the present invention comprises the steps of: performing a tracking-area update; receiving a logged measurement configuration message; determining whether or not the received logged measurement configuration message comprises an MDT PLMN list; and a applying, if the MDT PLMN is comprised, the MDT PLMN list to the MDT. The method and apparatus according to the present invention may efficiently control an MDT in a plurality of PLMNs. | 04-10-2014 |
20140161111 | METHOD AND APPARATUS FOR TRANSMITTING DATA USING A MULTI-CARRIER IN A MOBILE COMMUNICATION SYSTEM - Transmitting data using a multi-carrier in a mobile communication system by transmitting data in user equipment of a wireless communication system using a carrier aggregation technique including setting secondary cells included in an S-TAG (Secondary-Timing Advance Group) configured of only secondary cells (SCells), deactivating a downlink timing reference cell in the S-TAG, determining whether other activated secondary cells exist besides the deactivated downlink timing reference cell in the S-TAG, and when the other activated secondary cells exist in the S-TAG, setting one of the other activated secondary cells as a new downlink timing reference cell. Accordingly, the uplink transmission speed can be increased in the user equipment and user QoS can be improved by transmitting data using one or more uplink carriers in the terminal. | 06-12-2014 |
20140185484 | WIRELESS COMMUNICATION SYSTEM FOR MONITORING WIRELESS LINKS DURING TRANSMISSION GAPS - A method and apparatus are provided for measuring a link quality by a User Equipment (UE) in a communication system. The method includes receiving, from a wireless access network, a control message including an s-Measure including a serving cell quality threshold and gap configuration information used for setting up and releasing measurement gaps; setting up a measurement gap configuration indicated by the gap configuration information; if a link quality related to a serving cell is lower than the serving cell quality threshold, measuring a link quality related to at least one neighboring cell during a period according to the measurement gap configuration; and transmitting, to the wireless access network, a measurement report including a result of the measuring. | 07-03-2014 |
20140192736 | METHOD AND APPARATUS FOR CONFIGURING CONFIGURATION INFORMATION AT USER EQUIPMENT IN A MOBILE COMMUNICATION SYSTEM - A method for configuring configuration information with a user equipment in a mobile communication system is provided. The method includes determining, upon receipt of a Physical Uplink Control Channel/Sounding Reference Signal (PUCCH/SRS) release request from a lower layer, whether configuration information required for a transmission mode supporting Coordinated Multi-Point (CoMP) has been configured, and if the configuration information has been configured, reconfiguring a setting state of the configuration information. | 07-10-2014 |
20140241246 | MOBILE COMMUNICATIONS METHOD AND SYSTEM FOR SIGNALLING INFORMATION RELATING TO NETWORK'S CAPABILITIES - Methods and apparatuses are provided for transmitting information from a serving network element to a mobile terminal in a mobile communications network. The serving network element transmits indication indicating whether a voice over internet protocol (VoIP) via packet switched (PS) session is supported, to the mobile terminal, via an eNode B, during one of a tracking area updating (TAU) procedure and an attach procedure. A Voice Call Continuity (VCC) capability of the mobile terminal is received from the mobile terminal. It is determined whether or not to anchor a call based on the received VCC capability of the mobile terminal. The indication is determined based on a capability of the serving network element. | 08-28-2014 |
20140241324 | METHOD AND APPARATUS FOR RESELECTING A CELL IN HETEROGENEOUS NETWORKS IN A WIRELESS COMMUNICATION SYSTEM - The present disclosure provides a method for cell reselection in a wireless communication system in which various radio access technologies (RATs) coexist with each other. In a wireless communication system in which heterogeneous networks coexist with each other, the method of cell reselection between heterogeneous networks for a user equipment may include: receiving a system information block (SIB) containing cell reselection parameters from a corresponding base station; checking whether cell reselection parameters based on a cell selection quality value (Squal) are configured in the received SIB; and performing, when cell reselection parameter based on Squal are not configured, cell reselection based on a cell selection receive level value (Srxlev). The present disclosure may prevent the user equipment from performing unnecessary cell reselection. | 08-28-2014 |
20140248885 | MOBILITY STATE ENHANCEMENTS - In a cellular communications network, a measurement report is requested to enable handover conditions to be established. In one approach, a measurement report is based on satisfaction of an event. Signalling for this measurement report includes one or more parameters on the basis of which the event is defined, including a trigger time defining a time period over which the event should be satisfied for the report to be triggered. In one approach, speed dependent scaling is applied to a parameter other than the trigger time, in the defined event. In another approach, a handover scenario, concerning the nature of the cell in which the user equipment is operational, and optionally that of a neighbouring cell, governs the definition of a trigger event. | 09-04-2014 |
20140248889 | MANAGEMENT OF SPECTRUM EMISSION REQUIREMENTS - A user equipment ( | 09-04-2014 |
20140286240 | METHOD AND APPARATUS FOR TRANSMITTING DATA USING A MULTI-CARRIER IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for transmitting data using a multi-carrier in a mobile communication system. The method of transmitting data in user equipment of a wireless communication system using a carrier aggregation technique according to an embodiment of the present invention includes setting secondary cells included in an S-TAG (Secondary-Timing Advance Group) configured of only secondary cells (SCells), deactivating a downlink timing reference cell in the S-TAG; determining whether other activated secondary cells exist besides the deactivated downlink timing reference cell in the S-TAG, and when the other activated secondary cells exist in the S-TAG, setting one of the other activated secondary cells as a new downlink timing reference cell. According to the present invention, uplink transmission speed can be increased in the user equipment and user QoS can be improved by transmitting data using one or more uplink carriers in the terminal. | 09-25-2014 |
20140307672 | APPARATUS AND METHOD FOR ENABLING LOW LATENCY TRANSMISSIONS IN THE UPLINK OF A COMMUNICATION SYSTEM - A method is provided for transmitting signals in an uplink channel by a UE in a communication system. Downlink control information including information indicating second frequency resources is received from a base station. The UE determines first frequency resources for transmission of the signals in the uplink channel from the information indicating the second frequency resources. The UE transmits the signals in the uplink channel using the first frequency resources. | 10-16-2014 |
20140315537 | PROCESSING STATE INFORMATION - A method of operating a user equipment in a communications system including at least one cell that is controlled by a radio access node. The method includes maintaining current state information relating to the user equipment, the state information including at least one state information part associated with features for which state information reporting is configured in at least one cell, at least one state information part being associable with a plurality of different values, receiving an indication from the radio access node regarding state information held by the radio access node relating to the user equipment, determining whether to report current state information relating to the radio access node on the basis of the received indication, and reporting a current value associated with at least a given state information part to the radio access node. | 10-23-2014 |
20140328289 | METHOD AND APPARATUS FOR PROCESSING UPLINK DATA BY DRX-MODE TERMINAL IN MOBILE TELECOMMUNICATION SYSTEM - Disclosed is a method and apparatus for transmitting data by a terminal in a mobile telecommunication system, the method including transmitting a scheduling request for requesting resources for transmitting the data, monitoring a control channel to receive resource allocation information, continuously monitoring the control channel during a first period if the resources are allocated, transmitting the data based on the allocated resources, and monitoring the control channel to receive feedback information corresponding to the data during a second period following the transmission of the data. | 11-06-2014 |
20140329557 | METHOD AND APPARATUS FOR REPORTING DUAL MODE CAPABILITIES IN A LONG TERM EVOLUTION NETWORK - An apparatus for communicating with a Long-Term Evolution LTE network comprises a wireless communications module FDD operable in a Frequency Division Duplexing FDD mode and a Time Division Duplexing TDD mode, the apparatus having different capabilities in the FDD and TDD modes. The apparatus sends capability information related to capabilities and/or feature groups supported by the apparatus to the network, the capability information including a legacy part and an extension part such that a legacy LTE node can comprehend the capability information from the legacy part and not from the extension part. The extension part is included in an existing User Equipment Evolved Universal Terrestrial Radio Access UE-EUTRA-Capability Information Element, or is separate to the UE-EUTRA-Capability Information Element. A Radio Access Network RAN node for use in the LTE network is also disclosed, the node being arranged to identify different capabilities and/or feature groups supported by the apparatus in the FDD and TDD modes based on the capability information. Methods for use in the apparatus and node are also provided. | 11-06-2014 |
20140335866 | PROCESSING STATE INFORMATION - A method of operating a user equipment in a communications system comprising at least one cell that is controlled by a radio access node, the method comprising: maintaining current state information relating to the user equipment; determining whether to report current state information relating to the user equipment to the radio access node on the basis of the received indication; and reporting a current value associated with at least a given state information part to the radio access node in response to determining that current state information relating to the user equipment should be transmitted on the basis of the received indication. | 11-13-2014 |
20140376436 | METHOD AND APPARATUS FOR PERFORMING DISCONTINUOUS RECEPTION OPERATION BY CONNECTED MODE USER EQUIPMENT IN A MOBILE COMMUNICATION SYSTEM - Methods and apparatuses are provided for establishing time alignment by a terminal in a mobile communication system. First information for discontinuous reception (DRX) operation is received from a base station. A downlink control channel is monitored based on the first information. Second information for identifying a dedicated preamble on the downlink control channel is received from the base station. The dedicated preamble is transmitted to the base station based on the second information. A response message to the transmitted dedicated preamble is received from the base station on a downlink shared channel. The response message includes timing adjustment information and third information for a channel quality indicator (CQI) report. Time alignment is established based on the timing adjustment information included in the response message. The CQI report is transmitted to the base station based on the third information. | 12-25-2014 |
20150043494 | APPARATUS AND METHOD FOR DISCONTINUOUS DATA RECEPTION IN WIRELESS COMMUNICATION SYSTEM - Disclosed in a method of discontinuous data reception in a mobile communication system. The method includes: receiving downlink data and decoding the received downlink data by the UE; when the decoding is not successful, starting a timer for receiving retransmitted data; when the downlink data has been received by a configured downlink assignment, operating a downlink carrier, through which the downlink data has been received, in an active time; and when the downlink data has been received by a dynamic transmission resource and the downlink carrier, through which the downlink data has been received, is different from a downlink carrier, through which a scheduling command for the downlink data has been received, operating the downlink carrier, through which the scheduling command for the downlink data has been received, and the downlink carrier, through which the downlink data has been received, in an active time. | 02-12-2015 |