Patent application number | Description | Published |
20120276897 | APPARATUS AND METHOD FOR REPORTING RADIO LINK FAILURE - The present invention relates to an apparatus and method for report a Radio Link Failure (RLF) and discloses the operations of UE or an eNB and the operating schemes of a network according to a cause of RLF. More specifically, the operating efficiency of a network is improved by reporting the reception power or interference power or both of other transceivers within a device, from among causes that generate RLF. This specification includes elements for configuring detecting RLF, configuring an RLF report on the RLF, and transmitting the RLF report. The RLF report includes information about whether there was an influence of In-device COexistence interference (ICO) to the RLF. | 11-01-2012 |
20120276936 | APPARATUS AND METHOD FOR REESTABLISHING RADIO LINK IN WIRELESS COMMUNICATION SYSTEM - The present invention discloses an apparatus and method for performing radio link reestablishment in a wireless communication system. Furthermore, the present invention discloses a radio link reestablishment request message, including a reestablishment cause indicator on which whether a Radio Link Failure (RLF) was generated by User Equipment (UE) is determined, a cause of the occurrence of the RLF is determined, and whether the cause of the radio link reestablishment is In-Device Coexistence interference (IDC) due to the UE. Accordingly, a network may know a cause of the occurrence of an RLF generated during a handover. In particular, the network may know whether the cause of the occurrence of the RLF is a handover failure or RLF due to IDC. Consequently, a radio link can be efficiently reestablished, and also network parameters can be controlled. | 11-01-2012 |
20120300752 | APPARATUS AND METHOD FOR PERFORMING UPLINK SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM - This specification relates to an apparatus and method for performing random access in a wireless communication system. This specification discloses a mobile station, including a reception unit for receiving TAG configuration information on which at least one serving cell configured in the mobile station is classified as a Timing Alignment Group (TAG) from a base station and a transmission unit for transmitting a random access preamble to the base station on one representative serving cell within the TAG. In accordance with this specification, a procedure of obtaining a TAV for a serving cell in order to secure and maintain uplink timing synchronization becomes clear, the time taken to obtain uplink synchronization for a serving cell may be reduced, and overhead due to excessive random access attempts may be reduced by obtaining a TAV for a plurality of serving cells through one random access procedure. | 11-29-2012 |
20120314652 | APPARATUS AND METHOD FOR PERFORMING RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method for performing a random access in a wireless communication system are provided. The method includes: transmitting a random access preamble on at least one serving cell to a base station; and receiving a random access response message including a plurality of timing advance information applied to each of the at least one serving cell and information on a serving cell to which the plurality of timing advance information is applied as a response to the random access preamble from the base station. The mobile station receives timing information for uplink synchronization through a plurality of serving cells, thereby making it possible to perform the uplink synchronization with the base station. In addition, it is possible to more efficiently configure the random access response message transmitted to the mobile station by the base station in order to perform the uplink synchronization. | 12-13-2012 |
20130064131 | APPARATUS AND METHOD FOR TRANSMITTING POWER INFORMATION IN MULTIPLE COMPONENT CARRIER SYSTEM - An apparatus and a method for transmitting power information by a mobile station in a multiple component carrier system includes: obtaining power headroom that is a difference between maximum transmit power of a mobile station for each component carrier and power estimated for actual uplink transmission; configuring an identification field that identifies a component carrier that the power headroom is for; configuring power headroom fields that indicates a level of power headroom; and generating a medium access control protocol data unit (MAC PDU) including the identification field and the power headroom field and transmitting the generated MAC PDU to a base station. | 03-14-2013 |
20130070611 | APPARATUS AND METHOD FOR REPORTING POWER HEADROOM IN MULTIPLE COMPONENT CARRIER SYSTEM - A method and an apparatus for reporting power headroom by a mobile station in a multiple component carrier system is disclosed. The method includes calculating power headroom values for at least one component carrier configured in the mobile station, receiving information regarding a recommended component carrier selected by a base station among the at least one component carrier configured in the mobile station, selecting at least one report component carrier used to report the calculated power headroom values based on the information regarding the recommended component carrier, and transmitting the calculated power headroom values to the base station through the at least one report component carrier. | 03-21-2013 |
20130070716 | APPARATUS AND METHOD FOR TRANSMITTING POWER HEADROOM IN MULTIPLE COMPONENT CARRIER SYSTEM - An apparatus and method provide a mobile station transmits power headroom information in a multiple component carrier system. The apparatus and method include receiving a mode decision parameter for deciding a mode of a Power Headroom Report (PHR) for UpLink Component Carriers (UL CCs), configured in a mobile station, from a base station, deciding the mode of the PHR based on the mode decision parameter, and transmitting the power headroom information to the base station based on the decided mode of the PHR. Accordingly, there are advantages in that limited radio resources can be efficiently used because a mobile station's overhead according to a PHR can be reduced and a base station can efficiently perform uplink scheduling and link adaptation. | 03-21-2013 |
20130089062 | APPARATUS AND METHOD FOR TRANSMITTING INFORMATION ON POWER HEADROOM IN MULTIPLE COMPONENT CARRIER SYSTEM - There are provided an apparatus and method for transmitting information about power headroom in a multi-component carrier system. There is disclosed a method of configuring a plurality of component carriers combined from a candidate component carrier group, based on component carrier configuration information, triggering a power headroom report on the plurality of combined component carriers, calculating power headroom for the plurality of combined component carriers and transmitting combination power headroom information, including a value of the calculated power headroom, to a eNodeB. The power headroom report is triggered, when the power headroom on the plurality of combined component carriers is greater than or equal to a predefined threshold. | 04-11-2013 |
20130090146 | APPARATUS AND METHOD FOR TRANSMITTING INFORMATION REGARDING POWER COORDINATION IN MULTI-COMPONENT CARRIER SYSTEM - A method and apparatus for transmitting information regarding power coordination (PC) by a mobile station (MS) in a multi-component carrier system are provided. The method includes: setting information regarding power coordination (PC) indicating an amount or a range of power which is used to adjust uplink maximum transmission power of the MS, and transmitting the information regarding PC to a base station (BS). The information regarding PC is varied according to the number of component carriers configured in the MS. A scheduling error in the BS due to ambiguity of PC can be reduced and scheduling can be performed adaptively to maximum transmission power of a provided mobile station (MS) or a component carrier. | 04-11-2013 |
20130094382 | APPARATUS AND METHOD FOR CONTROLLING IN-DEIVCE COEXISTENCE INTEFERENCE IN WIRELESS COMMUNICATION SYSTEM - Method and apparatus for controlling in-device coexistence (IDC) interference in a wireless communication system are described in the present invention. The present invention includes transmitting UE capability information whether the UE has a capability to measure IDC, to a base station (BS); receiving measurement configuration information whether the UE is allowed to send IDC indication, from the BS; and transmitting the IDC indication and at least one of measurements which are a measurement in consideration of IDC and a measurement without consideration of IDC to the BS. It is possible to control reducing occurrence of in-device coexistence interference. | 04-18-2013 |
20130100925 | APPARATUS AND METHOD FOR TRANSMITTING INFORMATION ON POWER HEADROOM IN MULTIPLE COMPONENT CARRIER SYSTEM - There are provided an apparatus and method for transmitting power headroom information in a multiple component carrier system. This specification discloses a configuration in which a user equipment (UE) receives a Combination Power Headroom Report (CPHR) request message, including a combination indication field indicative of a combination including a plurality of component carriers, from a eNodeB (eNB), calculates a Combination Power Headroom (CPH) calculated in the UE-specific way for the plurality of component carriers, and sends the CPH to the eNB. Accordingly, the complexity of a power headroom report by an UE can be reduced and radio resources used in the power headroom report can be reduced, with the result that uplink transmission performance can be reduced. Furthermore, a scheduler can per form reliable dynamic uplink scheduling in a system to which a carrier aggregation is applied. | 04-25-2013 |
20130100938 | APPARATUS FOR PERFORMING UPLINK SYNCHRONIZATION IN MULTIPLE COMPONENT CARRIER SYSTEM AND METHOD THEREFOR - There are provided an apparatus for performing uplink synchronization in a multiple component carrier system and a method thereof. The method includes determining whether a timing advance value for adjusting uplink timing of a secondary serving cell is valid, entering a transmission holding mode in which the secondary serving cell holds uplink transmission, and determining a releasing condition of releasing the transmission holding mode is satisfied. The timing advance value is secured and the validity of the timing advance value is determined so that it is possible to prevent uplink interference from being generated due to a difference in timing advance values and to prevent capability from deteriorating due to the uplink interference. | 04-25-2013 |
20130114576 | APPARATUS AND METHOD FOR PERFORMING UPLINK SYNCHRONIZATION IN MULTIPLE COMPONENT CARRIER SYSTEM - The present invention relates to an apparatus and method for performing uplink synchronization n a multiple component carrier system. A method of User Equipment (UE) performing uplink synchronization in a multiple component carrier system includes receiving secondary serving configuration information on a cell used to configure one or more secondary serving cells in the UE from a Base Station (BS), receiving a Medium Access Control (MAC) message, including an activation indicator indicative of the activation or deactivation of the secondary serving cells configured in the UE and configuration information on a Timing Advance Group (TAG) that is a set of secondary serving cells having the same uplink time alignment value, from the BS, and setting the state of the secondary serving cells, configured in the UE, as activation or deactivation according to the activation indicator. | 05-09-2013 |
20130142098 | APPARATUS AND METHOD FOR TRANSMITTING INFORMATION REGARDING POWER COORDINATION IN MULTI-COMPONENT CARRIER SYSTEM - A method and apparatus for transmitting information regarding power coordination by a mobile station (MS) in a multi-component carrier system are provided. The method includes: generating information regarding power coordination (PC) indicating an amount or a range by which uplink maximum transmission power of the MS is to be adjusted; and transmitting the information regarding PC to a base station (BS). Accordingly, a scheduling error in the BS due to ambiguity of power coordination can be reduced and scheduling can be performed adaptively to maximum transmission power of a provided mobile station (MS) or a component carrier. | 06-06-2013 |
20130148619 | APPARATUS AND METHOD FOR TRANSMITTING INFORMATION ON POWER HEADROOM IN MULTIPLE COMPONENT CARRIER SYSTEM - There are provided an apparatus and method for transmitting power headroom information in a multiple component carrier system. The method includes finding Combination Power Headroom (CPH), that is a power headroom, calculated in an User Equipment (UE)-specific way with consideration taken of uplink transmission through a plurality of component carriers configured in the UE, generating CPH information used to inform an evolved NodeB (eNodeB:eNB) of the CPH, and sending the CPH information to the eNB. According to the present invention, power headroom for a combination component carrier is provided to an eNB in a wireless communication system in which a carrier aggregation is used. Accordingly, reliable dynamic carrier aggregation scheduling can be induced, and thus uplink transmission performance can be improved. | 06-13-2013 |
20130165049 | APPARATUS AND METHOD FOR CONTROLLING IN-DEVICE COEXISTENCE INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - There are provided a method and apparatus in which a User Equipment (UE) controls In-Device Coexistence (IDC) interference in a wireless communication system. Exemplary embodiments of the present invention provides a method including transmitting, to a base station (BS), UE capability information of whether the UE has a capability to control IDC, receiving, from the BS, IDC indication configuration information of whether the IDC is on-going, and transmitting, to the BS, a measurement result in consideration of IDC or a measurement result without consideration of IDC and IDC indication based on the IDC indication configuration information. According to exemplary embodiments of the present invention, UE can send information related to IDC interference to an evolved NodeB (eNB). | 06-27-2013 |
20130182649 | APPARATUS AND METHOD FOR ACTIVATING A COMPONENT CARRIER IN A MULTIPLE COMPONENT CARRIER SYSTEM - An apparatus and method for activating a component carrier in a multiple component carrier system including the steps of: receiving component carrier setting information about a first uplink component carrier, which is connected with a first downlink component carrier corresponding to a secondary serving cell of a UE, from a base station; setting the first uplink component carrier on the basis of the component carrier setting information; and activating the initial state of the set first uplink component carrier according to the activation state of the first downlink component carrier. Accordingly, the ambiguity of the initial state of an uplink component carrier additionally set between the UE and the base station can be removed. | 07-18-2013 |
20130195013 | APPARATUS AND METHOD FOR CONTROLLING IN-DEVICE COEXISTENCE INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - Method and apparatus of user equipment controlling In-Device Coexistence (IDC) interference in a wireless communication system are described in accordance with the present invention. The present invention comprises receiving an IDC indication request from an eNodeB (eNB) when a point of time at which an IDC indication for sending IDC-related information is triggered is different from a point of time at which load balancing is applied, sending the requested IDC indication to the eNB and receiving an In-device Coexistence interference cOordination (ICO) operation order determined based on the IDC indication from the eNB. | 08-01-2013 |
20130215866 | APPARATUS AND METHOD FOR TRANSMITTING POWER INFORMATION ABOUT COMPONENT CARRIER IN MULTIPLE COMPONENT CARRIER SYSTEM - The present invention provides an apparatus and method of a mobile station transmitting power information in a multiple component carrier system. This specification discloses configuring a Type Indicator Field (TIF) to indicate whether a first type of a maximum transmission power and a second type of a maximum transmission power which are outputted for primary component carriers of a Primary Serving Cell (PSC) are identical with each other, configuring at least one power field on the basis of the TIF, and transmitting a Medium Access Control (MAC) message, including the TIF and the at least one power field, to a base station. According to the present invention, in a wireless system in which a component aggregation is used, a maximum transmission power report regarding a PSC within an MAC control element is not redundantly performed using a TIF. | 08-22-2013 |
20130242833 | APPARATUS AND METHOD FOR CONTROLLING IN-DEVICE COEXISTENCE INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for controlling in-device coexistence interference (IDC) in a wireless communication system are provided. The present invention comprises transmitting IDC indication information including an unusable frequency band that is a frequency band in which performing communication is difficult because of IDC interference to a evolved NodeB (eNB), receiving Radio Resource Control (RRC) connection reconfiguration including IDC Discontinous Reception (DRX) configuration reconfiguring DRX relating the unusable frequency band based on the IDC indication information from the eNB and performing autonomously denial of Industrial Scientific Medical (ISM) transmission in the unusable frequency band by reconfiguring DRX based on the IDC DRX configuration. | 09-19-2013 |
20130250911 | APPARATUS AND METHOD FOR UPLINK SYNCHRONIZING IN MULTIPLE COMPONENT CARRIER SYSTEM - A user equipment (UE) of re-organizing a timing advance group (TAG) is provided. The UE comprises: a receiving unit for receiving, from a serving base station, secondary serving cell (SCell) configuration information which includes a first field and a second field, the first field including an ScellIndex of an SCell to indicate a removal of the SCell, the second field including at least one of the ScellIndex to indicate an addition of the SCell and a TAG ID indicating a TAG of the SCell, and a radio resource control (RRC) processing unit for performing the addition of the SCell after performing the removal of the SCell from one or more SCells configured in the UE, and for reorganizing the TAG by including the SCell in the TAG. | 09-26-2013 |
20130259003 | APPARATUS AND METHOD FOR PERFORMING WIRELESS CONNECTION RE-ESTABLISHMENT IN A MULTIPLE COMPONENT CARRIER SYSTEM - Provided are an apparatus and a method for performing radio connection re-establishment in a multiple component carrier system. The present description discloses a terminal including: a cell selection unit which selects a cell for said radio connection re-establishment upon occurrence of failure of wireless connection; a sub-serving cell setting information constructing unit which constructs sub-serving cell setting information for specifying at least one sub-serving cell set for the terminal; a message transmitting unit which transmits a radio connection re-establishment request message for requesting procedures for the radio connection re-establishment and a radio connection re-establishment completion message indicating the completion of the procedures for the radio connection re-establishment, to a base station through the selected cell; and a message receiving unit which receives a radio connection re-establishment message as a response to said radio connection re-establishment request message. | 10-03-2013 |
20130279423 | APPARATUS AND METHOD FOR CONTROLLING COEXISTENCE INTERFERENCE WITHIN DEVICE IN WIRELESS COMMUNICATION SYSTEM - The present specification discloses the following steps: detecting a transmission from a first frequency band in a first network system causing interference on a reception in a second frequency band in a second network system; transmitting to a base station support information for supporting control of the interference that is detected; and receiving from the base station reply information for accepting or denying control of the interference that is detected, as a reply to the support information. The coexistence interference within the device can be detected, the resolving process thereof can be simplified and achievable, and reverse compatibility with other existing processes can be maintained. | 10-24-2013 |
20130279480 | METHOD FOR CONFIGURING AND TRANSMITTING AN HARQ ACK/NACK SIGNAL, AND DEVICE USING SAME - The present invention relates to a method for configuring and transmitting an HARQ ACK/NACK signal by bundling said signal about a component carrier wave of a downlink subframe linked with an uplink subframe transmitting an HARQ ACK/NACK signal on PUCCH format 3. More particularly, the method comprises the steps of: determining a mode for bundling an HARQ ACK/NACK signal; and configuring the bundled HARQ ACK/NACK signal according to the determined bundling mode, wherein in the step of determining the bundling mode, all the component carriers of the downlink subframe transmitting the HARQ ACK/NACK signal to an uplink subframe are bundled when the downlink channel is in a worse state than the predetermined reference state, and some of the component carriers of the downlink subframe transmitting the HARQ ACK/NACK signal to an uplink subframe are bundled when the downlink channel is not in a worse state. | 10-24-2013 |
20130287009 | APPARATUS AND METHOD FOR CONTROLLING COEXISTENCE INTERFERENCE WITHIN DEVICE IN WIRELESS COMMUNICATION SYSTEM - The present invention provides an apparatus and a method for controlling coexistence interference within a device in a wireless communication system. The method discloses the following steps: performing triggering, in which a transmission, which is generated in a terminal, in a first frequency band of a first network system requests controlling of interference on a reception, which is generated in the terminal, in a second frequency band of a second network system performed; transmitting to a eNB support information including information on a time section that can or cannot be used by the first network system or the second network system, due to the interference; and receiving from the base station reply information for accepting or denying interference control as a reply to the support information. | 10-31-2013 |
20130294351 | APPARATUS AND METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present description relates to a method and apparatus for transmitting channel state information in a wireless communication system. The method comprises the following steps: receiving, from a base station, information indicating a linkage between a cell set including a serving cell and a subset including a subframe; configuring channel state information for the subframe on the serving cell; receiving, from the base station, channel-state-information-request information indicating the cell set; and transmitting the channel state information to the base station. According to the present invention, channel state information, which varies as time elapses, may be accurately measured, and channel state information of the point in time desired by the base station may be provided. | 11-07-2013 |
20130303152 | METHOD AND APPARATUS FOR REQUESTING INTER-CELL INTERFERENCE COORDINATION AND METHOD AND APPARATUS FOR PROCESSING INTER-CELL INTERFERENCE COORDINATION REQUEST - The present invention relates to a method and apparatus in which UE of an RRC_IDLE state which is near a femto cell (i.e., a Closed Subscriber Group (CSG) cell), but is not a CSG member requests a Base Station (BS) of a femto cell to apply Inter-Cell Interference Coordination (ICIC). In the present invention, the UE of an RRC_IDLE state selects a femto cell having a CSG ID not included in an allowed CSG list, transmits a Tracking Area Update (TAU) request message to a Mobility Management Entity (MME) managing the BS through the BS. Here, the TAU request message is a transfer request message requesting that a request to apply the ICIC be transferred to the BS of the CSG femto cell. | 11-14-2013 |
20130315194 | DEVICE AND METHOD FOR ADJUSTING COEXISTENCE INFERENCE IN A DEVICE IN A WIRELESS COMMUNICATION SYSTEM - A device and method for adjusting coexistence inference in a device in a wireless communication system includes: detecting interference caused by transmission in a first frequency band of a first network system with respect to reception in a second frequency band of a second network system; transmitting support information that supports the adjustment of the detected interference to a base station when a prohibit timer that prevents delivery of interference information for a predetermined period is expired; and receiving from the base station reply information on accepting or rejecting the adjustment of the detected interference in response to the support information. The procedures for processing coexistence interference in a device become simplified, are easily implemented, and maintain backward compatibility to other typical procedures. Moreover, since information on coexistence interference in a device is clearly defined, the uncertainty of interference adjustment procedures may be resolved. | 11-28-2013 |
20130324140 | APPARATUS AND METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to an apparatus and method for transmitting channel state information in a wireless communication system. This specification discloses a UE including: a reception unit for receiving coordination mode activation information indicating an ICIC mode to restrict a measurement of a channel state, and receiving CSI request information requesting aperiodic transmission of the CSI, a UE configuration control unit for switching a state of the UE to the ICIC mode based on the coordination mode activation information and for configuring one or more serving cells in the UE, a measurement unit for measuring a channel state for a subset in an activated serving cell from among the configured one or more serving cells based on the CSI request information, an information generation unit for generating CSI regarding the measured channel state, and a transmission unit for transmitting the generated CSI to the BS. | 12-05-2013 |
20130324141 | METHOD AND APPARATUS FOR RRC CONNECTION ESTABLISHMENT IN MTC - The present invention relates to a method and an apparatus for RRC connection establishment in an MTC (Machine Type Communication) system. A method for RRC connection establishment of a BS according to the present invention comprises a step of determining a load status of a core network and a step of transmitting wait time information to an MTC UE by using an RRC connection reject message or RRC connection release message if the core network is found to be overloaded. At this time, the wait time information is recognized and used by a UE allowing a delay in establishing RRC connection; but the information is not recognized by a UE not allowing a delay in establishing RRC connection. | 12-05-2013 |
20130324172 | APPARATUS AND METHOD FOR PERFORMING MEASUREMENT REPORT CONSIDERING IN-DEVICE COEXISTENCE INTERFERENCE - The present invention relates to an apparatus and a method for performing measurement reporting considering in-device coexistence interference. The present invention provide a user equipment transmitting a measurement report in a wireless communication system, comprising an interference detection unit, an assistant information generation unit, a measurement controller and a transmitter According to the present invention, a measurement procedure can be clearly defined in an interference delicate band where in-device coexistence interference occurs and scheduling restrictions on an eNodeB due to measurement reporting about an interference delicate band can be reduced. | 12-05-2013 |
20130336281 | APPARATUS AND METHOD FOR COORDINATING IN-DEVICE COEXISTENCE INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - This specification provides an apparatus and method for coordinating IDC interference in a wireless communication system. The method includes performing triggering for requesting an eNB to coordinate interference generated in reception in a second frequency band of a second network system within UE due to transmission in a first frequency band of a first network system within the UE, sending HAI, comprising first assistance information that supports the eNB in coordinating the interference in a frequency domain based on an FDM scheme and second assistance information that supports the eNB in coordinating the interference in a time domain based on a TDM scheme, to the eNB, and receiving response information indicative of an acceptance or rejection of the coordination of the interference from the eNB as a response to the HAI. | 12-19-2013 |
20140004850 | APPARATUS AND METHOD FOR CONTROLLING PAGING IN HETEROGENEOUS WIRELESS NETWORK SYSTEM | 01-02-2014 |
20140016598 | DEVICE AND METHOD FOR TRANSMITTING CONTROL INFORMATION FOR INTER-HETEROGENEOUS CELL INTERFERENCE ADJUSTMENT IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a device and method for transmitting control information for inter-heterogeneous cell interference adjustment in a wireless communication system. The present invention relates to a base station including: a signal receiving unit for receiving an ABS pattern; a system information generating unit for generating separation information that notifies the separated distance from a first sub frame transmitting PDCCH on the basis of the ABS pattern to a second sub frame transmitting PDSCH scheduled by the PDCCH; a downlink control information generating unit for generating downlink control information including a scheduling offset which indicates the separated distance; and a signal transmitting unit for transmitting the downlink control information from the first sub frame and transmitting a paging message or system information from the second sub frame. | 01-16-2014 |
20140018124 | APPARATUS AND METHOD FOR PERFORMING POWER HEADROOM REPORT - The present invention provides an apparatus and method for performing a Power Headroom Report (PHR) in a wireless communication system. A mobile station includes a trigger prohibition unit for measuring a primary prohibition timer and a secondary prohibition timer used to prohibit the trigger of the PHR and for generating or prohibiting at least one of the trigger of a first PHR based on the amount of a change in Path Loss and the trigger of a second PHR based on the amount of a change in Power Backoff based on the state of the primary prohibition timer or the secondary prohibition timer and an uplink transmission unit for transmitting a Medium Access Control message, including the PHR, to a base station based on the trigger of the first PHR or the trigger of the second PHR. | 01-16-2014 |
20140029459 | APPARATUS AND METHOD FOR DISCONTINUOUS RECEPTION IN MULTIPLE COMPONENT CARRIER SYSTEM - An apparatus and method for discontinuous reception in multiple component carrier system are provided. A method for a discontinuous reception (DRX) operation by a half-duplex UE in multiple component carrier system includes identifying whether a current subframe is a physical downlink control channel (PDCCH) subframe; perform PDCCH monitoring on the identified PDCCH subframe during an active time of a DRX cycle; and counting a DRX-related timer included in the active time in the identified PDCCH subframe. | 01-30-2014 |
20140029580 | HANDOVER DEVICE AND METHOD FOR SERVICE CONTINUITY IN MBMS - Disclosed are a handover device and method for service continuity in an MBMS. Disclosed is a terminal comprising: a transmission unit for transmitting to the terminal and a linked source base station, an MBMS service indicator including information indicating whether an MBMS service is being received, and information on the type of the MBMS service; and a reception unit for receiving from the source base station, an MBMS service response indicator for indicating that the MBMS service is transmitted from a target base station forming a new link with the terminal through a handover, and receiving the MBMS service from the target base station. The present invention enables continuous reception of the MBMS service when cell is changed due to movement while the terminal is receiving the MBMS service. | 01-30-2014 |
20140050134 | APPARATUS AND METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - Disclosed is a method and a apparatus for transmitting control information in a wireless communication system. The present invention includes detecting In Device Coexistence (IDC) interference, and transmitting an IDC indication message to an eNB if there is at least one frequency influenced by the IDC interference, wherein the IDC indication message is configured to include a frequency list containing frequencies influenced by the IDC interference, and the frequency list is configured to include an IDC interference direction indicating a direction of an influence of the detected IDC interference. | 02-20-2014 |
20140086213 | APPARATUS AND METHOD FOR PERFORMING UPLINK SYNCHRONIZATION IN MULTIPLE COMPONENT CARRIER SYSTEM - An apparatus and method for performing uplink synchronization in a multiple component carrier system are provided. The method includes: receiving a handover command message from a first base station, the handover command message including a timing alignment value for adjusting uplink timing of a secondary serving cell of a second base station; performing handover from the first base station to the second base station based on the handover command message; adjusting the uplink timing of the secondary serving cell of the second base station based on the timing alignment value; and performing a random access through the secondary serving cell of the second base station based on the adjusted uplink timing. According to the present invention, deactivated secondary serving cells of a target base station are rapidly activated, and increase efficiency of uplink data transmission after the handover. | 03-27-2014 |
20140086224 | APPARATUS AND METHOD FOR RECEIVING A CONTROL CHANNEL IN A MULTI-COMPONENT CARRIER SYSTEM - The present description relates to an apparatus and method for receiving a control channel in a multi-component carrier system. The method for performing random access disclosed in the present description comprises the steps of: transmitting a random access preamble to a base station from an activated sub-serving cell; monitoring physical downlink control channel candidates during a response window one the basis of a certain aggregation in a temporary search space in a control region of the activated sub-serving cell, wherein the control region consists of a group of control channel elements; and adjusting an uplink time of the activated sub-serving cell according to a time advance command indicated by a random access response when the random access response, including a random access identifier corresponding to the random access preamble, is received in the response window. | 03-27-2014 |
20140092855 | APPARATUS AND METHOD FOR PERFORMING RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM - Disclosed are a method and an apparatus for performing a random access by a user equipment in. The method includes transmitting a random access preamble to an evolved-NodeB (eNB) on at least one serving cell; and receiving a random access response message as a response to the random access preamble from the eNB, wherein the random access response message is transmitted through a physical downlink shared channel (PDSCH) ordered by a physical downlink control channel (PDCCH) scrambled by the at least one random access radio network temporary identifier (RA-RNTI) for the at least one serving cell, respectively. The UE can receive timing information for uplink synchronization through a plurality of serving cells to perform the uplink synchronization with the eNB and more effectively configure the random access response message transmitted from the eNB to the UE for uplink synchronization. | 04-03-2014 |
20140112236 | APPARATUS AND METHOD FOR TRANSMITTING CONTROL INFORMATION FOR CONTINUOUS MBMS SERVICE - The present specification discloses an apparatus and a method for transmitting control information for a continuous MBMS service. The present specification discloses a terminal comprising: a terminal processor for generating a measurement report related to source and target cells, reconfiguring RRC connections on the basis of an RRC connection reconfiguration message, and generating an RRC reconfiguration completion message comprising a flag indicating whether or not the MBMS service has been received and/or active MBMS service information indicating the type of MBMS service; a terminal transmission part for transmitting the measurement report to the source base station and the RRC connection reconfiguration completion message to the target base station; and a terminal reception part for receiving the RRC connection reconfiguration message from the source base station. | 04-24-2014 |
20140112308 | APPARATUS AND METHOD FOR PERFORMING UPLINK SYNCHRONIZATION IN MULTI-COMPONENT CARRIER SYSTEM - The present invention relates to an apparatus and method for performing uplink synchronization in a multi-component carrier system. A method for performing uplink synchronization according to the present invention comprises the steps of: receiving, from a base station, a message that indicates a time alignment value for adjusting an uplink time of a sub-serving cell; adjusting the uplink time on the basis of the time alignment value; and driving a validity timer, which indicates the period of validity of the time alignment value when the sub-serving cell is deactivated. According to the present invention, with respect to a sub-serving cell, which performs a random access procedure to ensure and maintain a time alignment value, the validity of the time alignment value and whether or not uplink synchronization in the sub-serving cell is made can be quickly ascertained, and efficiency of uplink data transmission can increase. | 04-24-2014 |
20140161020 | DEVICE AND METHOD FOR SUPPORTING CONTINUITY OF MBMS - The present invention relates to a device and method for transmitting control information about an MBMS service. The present specification discloses a method for receiving control information about an MBMS service performed by a terminal, the method comprising the steps of: receiving, from a serving cell, MBMS current state information of a target cell adjacent to the serving cell via a first broadcast channel; monitoring a frequency of the target cell on the basis of an MBMS frequency list contained in the MBMS current state information of the target cell; performing cell reselection for selecting the target cell; and receiving the MBMS service from the target cell. According to the present invention, the terminal can pre-recognize, in the serving cell, information on a frequency at which an MBMS is provided in the adjacent cell and a type of the MBMS service. | 06-12-2014 |
20140162642 | APPARATUS AND METHOD OF TRANSMITTING USER EQUIPMENT CAPABILITY INFORMATION IN MULTIPLE COMPONENT CARRIER SYSTEM - A method of transmitting user equipment (UE) capability information in a multiple component carrier system by the UE is provided. The method includes receiving, from a base station (BS), a UE capability request message, and transmitting, to the BS, a UE capability response message including a supportedbandcombination field indicating one or more band combinations supported by the UE. | 06-12-2014 |
20140192771 | APPARATUS AND METHOD FOR PERFORMING HANDOVER IN MULTIPLE COMPONENT CARRIER SYSTEM - An apparatus and method for performing handover in a multiple component carrier system. In an aspect, a method of a target Base Station (BS) performing handover in a multiple component carrier system includes receiving service state information, including information about at least one candidate cell, from a source BS through a handover request message, calculating a final determination value for determining a final cell for a User Equipment (UE) which is a subject of the handover based on the service state information, selecting the final cell by comparing the final determination value and the information about the candidate cell, and sending a handover request Acknowledgement (ACK) message, including information about the selected final cell, to the source BS. | 07-10-2014 |
20140301235 | APPARATUS AND METHOD FOR CONTROLLING IN-DEVICE COEXISTENCE INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - Method and apparatus of controlling In-Device Coexistence interference in a wireless communication system are described. The present invention comprises receiving measurement configuration information, comprising an IDC triggering threshold, from a base station; performing measurement considering IDC influence in a serving cell and measurement not considering IDC influence in a neighbor cell based on the measurement configuration information; triggering the IDC event if a difference between a result of the measurement considering IDC influence and a result of the measurement not considering IDC influence is greater than the IDC triggering threshold; and transmitting measurement report information, comprising IDC indication, to the base station. | 10-09-2014 |
20140348039 | METHOD AND DEVICE FOR TRANSRECEIVING CELL-SELECTIVE SIGNALS IN MULTICOMPONENT CARRIER SYSTEM - The present invention relates to a method and device for transreceiving cell-selective signals in a multi-component carrier system. The present invention provides a method for transreceiving cell-selective signals, and the method comprises the steps of: configuring, in a terminal, a sub serving cell belonging to a first band; setting one of the sub serving cell and a main serving cell as a mute serving cell and the other as a valid serving cell, in an inconsistent subframe in which a first TDD uplink/downlink configuration of the sub serving cell is different from a second TDD uplink/downlink configuration of the main serving cell belonging to a second band that is different from the first band; and transreceiving a scheduled signal to and from the set valid serving cell. | 11-27-2014 |
20150085843 | APPARATUS AND METHOD FOR CONTROLLING IN-DEVICE COEXISTENCE INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - Method and apparatus for controlling in-device coexistence (IDC) interference in a wireless communication system are described in the present invention. The present invention includes transmitting UE capability information whether the UE has a capability to measure IDC, to a base station (BS); receiving measurement configuration information whether the UE is allowed to send IDC indication, from the BS; and transmitting the IDC indication and at least one of measurements which are a measurement in consideration of IDC and a measurement without consideration of IDC to the BS. It is possible to control reducing occurrence of in-device coexistence interference. | 03-26-2015 |