Abstract: The present invention provides a method for performing Buffer Status Reporting (BSR) in a user equipment (UE) of a wireless communication system. The method includes steps of triggering a BSR procedure when a predefined condition is satisfied, and using a short-format BSR control element to perform BSR when no buffered data exists in every logic channel group of the UE.

Abstract: A method of handling a hybrid automatic repeat request (HARQ) process for semi-persistent scheduling (SPS) in a user equipment (UE) of a wireless communication system is disclosed. The method includes steps of configuring an SPS functionality which utilizes at least one HARQ process; receiving a first new data indicator (NDI) addressed to an SPS cell radio network temporary identifier (SPS C-RNTI) of the UE for a first HARQ process of the at least one HARQ process; and considering the next transmission to be received by the first HARQ Process as a first transmission of the first HARQ Process when receiving a second NDI addressed to a C-RNTI of the UE for the first HARQ process.

Abstract: A method for handling a random access procedure in a user equipment, called UE hereinafter, of a wireless communications system includes outputting a message 3 as a scheduled transmission not including a specific field indicating whether the UE has a cell Radio Network Temporary Identifier, called C-RNTI hereinafter, or not during the random access procedure.

Abstract: A method for setting a header, having a header extension type field, of a protocol data unit in a radio link control layer of a wireless communications system includes configuring a “use of the special value of the header extension type field” mode, and setting the header extension type field to indicate that a last octet of the protocol data unit is a last octet of a service data unit when the last octet of the protocol data unit is the last octet of the service data unit and there is no concatenation of service data units inside the protocol data unit.

Abstract: A method of improving discontinuous reception (DRX) functionality for a user equipment (UE) of a wireless communication system is disclosed, so as to allow continuous reception of following transmissions during a retransmission period. The method includes steps of monitoring a Physical Downlink Control Channel (PDCCH) when an On Duration Timer, a DRX Inactivity Timer or a DRX Retransmission Timer is running; and starting or restating the DRX Inactivity Timer when the PDCCH indicates the UE a new transmission.

Abstract: A method of polling in a wireless communications system includes prohibiting polling within a first predetermined period and triggering a poll function while polling is prohibited. After the first predetermined period has expired the method determines that there are no protocol data units (PDUs) scheduled for transmission or re-transmission and that there is at least a transmitted PDU that is not acknowledged yet, and selects a PDU to schedule for re-transmission to fulfill the poll function.

Abstract: A method of managing a queuing operation corresponding to a cell update procedure for a user equipment of a wireless communications system includes initiating the cell update procedure, entering a waiting state of the queuing operation according to a received response message corresponding to the cell update procedure, and re-initiating the cell update procedure during a waiting state of the queuing operation when an event triggering the cell update procedure occurs.

Abstract: A method for a user equipment (UE) of a wireless communication system performing carrier management is disclosed. The wireless communication system supports Carrier Aggregation (CA), which enables the UE to perform transmission through multiple carriers. The method includes steps of configuring a plurality of carriers, and activating or deactivating a carrier group of the plurality of carriers according to Medium Access Control (MAC) signaling.

Abstract: A method for performing Power Headroom Reporting (PHR) in a user equipment (UE) of a wireless communication system is disclosed. The wireless communication system supports Carrier Aggregation (CA), which enables the UE to perform transmission through multiple carriers. The method includes steps of configuring a plurality of uplink carriers, and generating at least one PHR values, each corresponding to one of the plurality of uplink carriers.

Abstract: When a polling procedure is triggered, the value of the poll sequence number field within a status protocol data unit is always set to be a sequence number of a next protocol data unit to be transmitted for the first time minus 1, regardless of the configured transmission window size so as to avoid unnecessary transmission delay.

Abstract: A method for configuring signaling radio bearer in a wireless communications system includes not ciphering a non-concatenated message on a radio resource control layer or its lower layer and transmitting a concatenated message and the non-concatenated message on different signaling radio bearers, wherein a non-concatenated message consists of a Non-Access Stratum message only and a concatenated message consists of both Non-Access Stratum message and Access Stratum message.

Abstract: The present invention provides a method for improving a Radio Resource Control (RRC) Connection procedure in user equipment (UE) of a wireless communication system. The method includes steps of performing an RRC Connection procedure, and resetting or re-establishing a lower layer protocol entity for Signaling Radio Bearers (SRBs) when a cell reselection occurs.

Abstract: A method for setting a header of a protocol data unit in a radio link control layer of a wireless communications system, wherein a length indicator consisting of multiple bits is used to indicate an ending position of a first service data unit carried by a first PDU, includes under a predefined condition, not inserting a length indicator for a second SDU carried by a second PDU in the header of the second PDU.

Abstract: The present invention provides a method for handling a handover procedure for a Radio Resource Control (RRC) layer in a user equipment (UE) of a wireless communication system. The method includes steps of indicating occurrence of a handover procedure to a Packet Data Convergence Protocol (PDCP) layer of the UE when receiving an RRC Connection Reconfiguration message for triggering the handover procedure, applying a new security configuration to the PDCP layer if the RRC Connection Reconfiguration message includes an information element (IE) for providing the security configuration, and requesting a Medium Access Control (MAC) layer of the UE to initiate a random access procedure for the handover procedure.

Abstract: A method for enhancing receiving efficiency of a multimedia broadcast multicast service, know as MBMS, in a wireless communications system includes setting an indicator for indicating whether an MBMS service is transmitted on an MBSFN, an abbreviation of MBMS over a Single Frequency Network, carrier or not, and sending the indicator to a user equipment of the wireless communications system.

Abstract: The present invention provides a method of handling data decryption for a Packet Data Convergence Protocol layer of a user equipment upon handover in a wireless communication system for increasing the validness of deciphering packages in the wireless communication system, which includes using a security variables corresponding to a source base station for deciphering the packets received from the source base station when the user equipment performs a handover procedure.

Abstract: In order to prevent a preferred frequency providing Multimedia Broadcast Multicast Service, called MBMS hereinafter, services, from getting congestion, the present invention provides a method of selecting an operating frequency for a user equipment, called UE hereinafter, in a wireless communications system. The method includes switching the operating frequency from a first frequency to a second frequency when the UE activates to receive a MBMS service of a service group; and switching the operating frequency from the second frequency to the first frequency when the UE determines not to receive any MBMS services provided on the second frequency.

Abstract: In order to reduce power and computing resource consumption in a user equipment of a wireless communications system, a method for enhancing a resource utility rate for the user equipment is provided. The method includes stopping receiving data and control signals through a first common channel and a second common channel and clearing configuration corresponding to the first and second common channels when the user equipment receives a connection setup message configuring the user equipment to enter a CELL_DCH state.

Abstract: A method for improving ACK/NACK bundling in a user equipment (UE) of a wireless communication system is disclosed. The method includes steps of receiving an uplink grant allocated to an uplink sub-frame, the sub-frame being utilized for transmitting an HARQ feedback corresponding to a plurality of downlink sub-frame, a TDD UL/DL configuration of the UE being set to 0; and determining whether the UE misses any downlink assignment is missing according to a downlink assignment index (DAI) carried in a latest received Physical Downlink Control Channel (PDCCH) for downlink assignment.

Abstract: In order to improve continuous packet connectivity (CPC), the present invention provides a method of improving CPC for a UE working in a HS-SCCH less operation in a wireless communications system. The method includes treating a received data as a specific data to be decoded when the received data is the data of the third transmission for a base station and the data in a soft buffer pointed by the third transmission is not the second transmission for the base station in the wireless communications system.