Abstract:
There is provided a method for a method for reporting buffer status. The method may comprise: identifying a change of a radio bearer; and triggering a buffer status report (BSR), if the change of the radio bearer is identified.
Abstract:
A method and apparatus for transmitting a message in a wireless communication system is provided. A user equipment (UE) submits a message to a packet data convergence protocol (PDCP) layer and a radio link control (RLC) layer, detects a radio link failure or a handover failure, checks whether the RLC layer receives acknowledgement (ACK) to the message from the network, reestablishes the connection with the network, and retransmits the message upon the reestablishment if the RLC layer does not receive the ACK to the message.
Abstract:
A method and apparatus for transmitting an indication for device-to-device (D2D) mobility or D2D connection failure in a wireless communication system is provided. A first mobile device identifies a cell for mobility of the first mobile device or a second mobile device which has a connection with the first mobile device, and indicates the connection with the second mobile device to the cell. Also, the first mobile device detects failure of the connection with the second mobile device, and indicates the failure of the connection with the second mobile device to either the second mobile device or the cell.
Abstract:
Provided are a method by which a terminal processes an emergency call in a wireless communication system, and an apparatus for supporting the same. The method comprises: selecting a cell when a radio link failure (RLF) is generated; transmitting a RRC connection re-establishment request message to the selected cell; stopping an expired timer if a suitable cell or a cell using different radio access technology (RAT) is not selected within a certain time when the RLF is generated in the emergency call process of the terminal and the selected cell is an acceptable cell; and transmitting the RRC connection reestablishment request message.
Abstract:
A method and apparatus for transmitting uplink control signals in a wireless communication system is provided. A user equipment (UE) transmits a first uplink control signal for a first type cell to a first eNodeB (eNB) on a first physical uplink control channel (PUCCH) in the first type cell. The UE transmits a second uplink control signal for a second type cell to a second eNB on a second PUCCH in the second type cell. The UE transmits a third uplink control signal for a third type cell to the second eNB on the second PUCCH in the second type cell. The third type cell is a cell where a PUCCH is not configured, and the UE supports dual connectivity with the first eNB and the second eNB.
Abstract:
A method for reporting mobility information by a terminal in a wireless communication system is provided. The method comprises: determining whether or not mobility information is reported, wherein the mobility information indicates a mobility state of the terminal; and reporting the mobility information to a network if it is determined that the mobility information is reported.
Abstract:
A method and apparatus for handling a secondary cell (SCell) deactivation timer in a wireless communication system is provided. When a user equipment (UE) is receiving a specific channel or service on a SCell from a network, the UE may start or restart a SCell deactivation timer whenever the SCell deactivation timer expires. Alternatively, the UE may delay expiry of a SCell deactivation timer whenever the SCell deactivation timer expires.
Abstract:
The present invention is directed to a method and an apparatus used for in a wireless communication system. Specifically, the present invention is directed to a method of controlling uplink transmission and an apparatus therefore, in which the method comprises: receiving a signal including information related with an assignment of a TAG for SCell; and considering SCell as having no valid uplink timing if TAT of the TAG is not running.
Abstract:
A method and apparatus for estimating a speed of a user equipment (UE) in a wireless communication system is provided. The method includes counting a number of cell reselections based on whether a cell is reselected due to a user service or not, and estimating a speed of the UE based on the number of the cell reselections.
Abstract:
Provided are a method for declaring radio link failure (RLF), performed by a terminal in a wireless communication system, and a terminal using the method. The method is characterized by: determining whether an event for a measurement report is satisfied; starting a timer only for an initial measurement report, when the event has been satisfied; and declaring the radio link failure when the timer has expired.