Abstract: A method and apparatus for aperiodic CQI/PMI/RI reports in a wireless communication system is disclosed. The wireless communication system supports carrier aggregation that enables a user equipment of the wireless communication system to perform transmission and/or reception using multiple component carriers. The method includes reporting CQI/PMI/RI for multiple component carriers. When the user equipment needs to report CQI/PMI/RI for a deactivated component carriers, a special value may be used to signal the condition. Alternatively, the user equipment indicates with the reported CQI/PMI/RI which component carriers are measured.

Abstract: A method for configuring aperiodic sounding reference symbols is disclosed. The method avoids transmission of unused configuration parameters. In particular, parameters for use with DCI format 4 are not configured for user equipment that does not support the format. Accordingly, the method may include: configuring UL transmission mode equal to 1; configuring aperiodic SRS for DCI format 0/1a; and not configuring aperiodic SRS parameter sets for DCI format 4. The method may also include: configuring UL transmission mode equal to 2; configuring aperiodic SRS for DCI format 0/1a; and not configuring aperiodic SRS parameter sets for DCI format 4.

Abstract: A method and apparatus are disclosed for TTI bundling for small cell enhancements in a wireless communication system. The method includes a UE (User Equipment) that is served by a first cell controlled by a first eNB (evolved Node B). The method also includes the UE receives a first RRC (Radio Resource Control) message for configuring a TTI bundling. The method further includes the UE receives a second RRC message for adding a second cell controlled by a second eNB to the UE, wherein the second cell is configured with a PUSCH (Physical Uplink Shared Channel). In addition, the method includes the UE applies the TTI bundling for uplink transmissions on the first cell and does not apply the TTI bundling for uplink transmissions on the second cell.

Abstract: A method and apparatus for improving wait time in a wireless communication system are disclosed. The method includes receiving a message indicating an eWaitTime at a user equipment (UE), entering a wait time period corresponding to the eWaitTime, and does not initiate a connection request with a specific cause during the wait time period, and considering the wait time period finished upon receiving a paging message that pages the UE.

Abstract: A method and apparatus for log reporting in a wireless communication system includes receiving a request message by a user equipment (UE), the request message requesting log reporting, wherein at least one logged measurement entry is stored in the UE and the at least one logged measurement entry corresponds to a current Registered Public Land Mobile Network (RPLMN); including all or parts of the at least one logged measurement entry in a response message; including an indication in the response message if less than all of the at least one logged measurement entry is included in the response message; and not including the indication in the response message if all of the at least one logged measurement entry is included in the response message.

Abstract: A method and apparatus are disclosed for improving small cell measurement in a wireless communication system. The method includes configuring a plurality of offset values for Radio Resource Management (RRM) measurement on a small cell. The method also includes selecting some of the plurality of offset values to determine a triggering of the measurement report of the small cell.

Abstract: A method for a Component Carrier (CC) deactivation timer in a wireless communication system includes receiving a first Medium Access Control (MAC) Control Element (CE) for CC Management to activate a first Secondary CC (SCC) that has been already activated by using a second MAC CE for CC Management. The method then includes restarting a deactivation timer for the first SCC based upon the first MAC CE for CC Management.

Abstract: A method and apparatus are disclosed for triggering a buffer status in dual connectivity, wherein a UE is served by a first eNB. The method includes the UE receives a first RRC (Radio Resource Control) message for adding a second cell controlled by a second eNB to the UE. The method also includes the UE triggers a Regular BSR for transmission to the second eNB when the second cell is added.

Abstract: A method and apparatus are disclosed for removing a serving cell in a wireless communication system. The method includes a UE is served by a first cell controlled by a first eNB. The method also includes the UE is configured with a second cell controlled by a second eNB. The method further includes the UE is configured with a radio bearer, wherein there is a PDCP entity corresponding to the RB and there are two RLC entities corresponding to the RB, one RLC entity for data transfer via the first cell and the other RLC entity for data transfer via the second cell. In addition, the method includes the UE delivers out-of-sequence RLC SDUs reassembled by the RLC entity corresponding to the first cell to the PDCP entity in response to reception of an instruction to remove the second cell. In one embodiment, the method also includes the UE transmits a PDCP status report to the first eNB to indicate which PDCP packets of the RB need to be retransmitted if the PDCP status report is configured as required to the RB.

Abstract: Methods and apparatuses are disclosed for scheduling request operation in a small cell in a wireless communication system. The method includes having a user equipment (UE) configured with a first serving cell and a second serving cell. The method further includes configuring the (UE) with a first scheduling request (SR) resource on a first physical uplink control channel and a second SR resource on a second physical uplink control channel. The method includes selecting, by the UE, the first SR resource to start a SR procedure in response to a trigger by a buffer status report (BSR), wherein an availability of the first SR resource is nearer to a timing of a triggering of the BSR than the availability of the second SR resource. Also, the method includes sending, by the UE, scheduling requests with the first SR resource on the first physical uplink control channel.

Abstract: A method and apparatus are disclosed for adding serving cells in a wireless communication system. The method includes a UE (User Equipment) is served by a first cell controlled by a first eNB (evolved Node B), wherein multiple radio bearers (RBs) for the UE are allocated to the first eNB and there is a MAC (Medium Access Control) entity in the UE for supporting the first cell. The method also includes the UE receives a RRC (Radio Resource Control) message for adding a second cell controlled by a second eNB to the UE, wherein a RB among the multiple RBs is relocated to the second eNB according to information included in the RRC message. The method further includes the UE re-establishes a RLC (Radio Link Control) entity corresponding to the RB and does not reset the MAC entity in response to the relocation of the RB.

Abstract: Methods an apparatuses are disclosed for small cell enhancement in a wireless communication system. The method includes having a user equipment (UE) connected to a Macro evolved Node B (eNB. The method further includes configuring the UE to establish a very first Small Cell through a Radio Resource Control (RRC) message, wherein the very first Small Cell belongs to a Small Cell eNB different from the Macro eNB.

Abstract: A method and apparatus are disclosed for monitoring a radio link on a small cell in a wireless communication system. The method includes the UE receives a RRC message for configuring a second cell to the UE. The method also includes the UE transmits a complete message in response to the RRC message for configuring the second cell. The method further includes the UE monitors a radio link with the second cell and reports a radio link failure to the first eNB when the radio link failure is detected on the second cell, if the second cell is controlled by a second eNB. In one embodiment, the method includes (i) the UE stops uplink transmission(s) to the second cell after detection of the radio link failure, and/or (ii) the UE deactivates the second cell after detection of the radio link failure.

Abstract: A method for handling semi-persistent transmission resources in a network terminal of a wireless communication system is disclosed. The wireless communication system supports carrier aggregation and semi-persistent scheduling (SPS). Carrier aggregation enables a user equipment (UE) of the wireless communication system to perform transmission and/or reception using multiple carriers. The method includes steps of establishing an RRC connection via a cell containing an uplink carrier and a downlink carrier, configuring at least one downlink carrier to the UE via a first RRC message, and transmitting a physical downlink control channel (PDCCH) signaling addressed to an SPS cell radio network temporary identifier of the UE, to configure or reconfigure a semi-persistent transmission resource to the UE or to trigger an SPS retransmission.

Abstract: A method and apparatus are disclosed to prevent RAN (Radio Access Network) overload for legacy networks in a wireless communication system. In one embodiment, the method comprise initiating a RRC (Radio Resource Control) connection establishment procedure to access a cell. The method further comprises performing an access barring check. The method also comprises extending a barring time autonomously.

Abstract: A method and apparatus are disclosed to provide assistance information for reconfiguration in a wireless communication system. In one embodiment, the method comprises providing, from a UE (user equipment), information to an eNB (evolved Node B) to indicate whether there is buffered data or no buffered data for a radio bearer, a logical channel, or a service.

Abstract: A method and apparatus for implementing small cell enhancements in a wireless communication system are disclosed. The method includes a first eNB (evolved Node B) controlling a first cell, wherein the first cell is serving a UE (User Equipment). The method further includes the first eNB configuring a second cell to serve the UE, wherein the second cell is controlled by a second eNB. The method also includes the first eNB allocating a measurement gap configuration to the UE. In addition, the method includes the first eNB sending the measurement gap configuration to the second eNB.

Abstract: A method and apparatus for a base station to trigger a random access procedure for carrier aggregation in a wireless communication system are disclosed. The method includes sending a dedicated radio resource control signal to configure a user equipment with a plurality of secondary component carriers (SCCs) that include uplink SCCs and/or downlink SCCs for carrier aggregation. The method further includes sending an activation signal to the user equipment to activate a configured downlink SCC. The method also includes transmitting a physical downlink control channel order only on the downlink primary CC to trigger a random access procedure.

Abstract: A method and apparatus are disclosed for performing DRX (Discontinuous) operation. In one embodiment, the method comprises (i) configuring a plurality of cells for carrier aggregation, (ii) configuring the plurality of cells with a plurality of TDD (Time Division Duplex) UL-DL (Uplink-Downlink) configurations, (iii) configuring the plurality of cells for DRX operation, (iv) configuring a set of DRX timers for the plurality of cells, and (v) running the set of DRX timers for the plurality of cells.

Abstract: Methods and apparatuses are disclosed for small cell enhancement in a wireless communication system. The method includes having a user equipment (UE) configured with at least a first serving cell and a second serving cell. The method also includes the UE reporting a power information report to the first serving cell, in which the power information report includes power information of a first set of serving cells and a second set of serving cells.