Abstract:
Provided are a device-to-device (D2D) operation method performed by a terminal in a wireless communication system and a terminal using the method. The method comprises: receiving a terminal auxiliary information configuration for configuring the transmission of terminal auxiliary information from a base station; and transmitting the terminal auxiliary information on the basis of the terminal auxiliary information configuration, wherein the terminal auxiliary information includes information needed for allocating a D2D resource to the terminal by the base station.
Abstract:
A method and apparatus for configuring measurements in a wireless communication system is provided. A user equipment (UE) receives a reference signal (RS) indicator from a network, and evaluates whether a measurement report triggering event is satisfied by only using a measurement result based on a RS indicated by the RS indicator. The RS indicator may indicate which RS is used for reporting the measurement result. The RS indicator may indicate a cell-specific reference signal (CRS) or a discovery reference signal (DRS).
Abstract:
A method and apparatus for transmitting device-to-device (D2D) related control information in a wireless communication system is provided. A user equipment (UE) receives a transmission period of the D2D related control information from a D2D synchronization reference UE, transmits a scheduling assignment for transmission of the D2D related control information, and transmits the D2D related control information periodically based on the received transmission period.
Abstract:
Provided is a cell searching method performed by a terminal in a wireless communication system, and a terminal using same. In the method, determined is whether or not a downlink frequency exists, the downlink frequency being associated with a frequency having preconfigured resources for a D2D operation, and, if the downlink frequency exists, a search is performed for a cell in the downlink frequency.
Abstract:
The present specification proposes a method for receiving system information by a user equipment (UE) configured with an extended discontinuous reception (eDRX) in a wireless communication system. Specifically, the method includes the step of receiving a paging message including an indicator indicating system information modification in a modification period within an active time of the eDRX; determining whether to receive the system information by comparing the active time with the modification period; and receiving the system information in a next modification period when it is determined to receive the system information.
Abstract:
A method and apparatus for indicating a device-to-device (D2D) resource pool in a wireless communication system is provided. A user equipment (UE) selects one of a first D2D resource pool or a second D2D resource pool. The first D2D resource pool may be a preconfigured D2D resource pool, and the second D2D resource pool may be a D2D resource pool received from a cell. The UE transmits an indication of the selected D2D resource pool while performing a D2D operation based on the selected D2D resource pool.
Abstract:
A method and apparatus for transmitting information for device-to-device (D2D) operation in a wireless communication system is provided. A user equipment (UE) establishes a radio resource control (RRC) connection with a network. If the UE has interest to perform D2D operation, the UE transmits D2D information to the network. The D2D information may indicate various pieces of information.
Abstract:
Provided are a cell reselection method performed by a terminal in a wireless communication system and a terminal using the method. The method comprises receiving configuration information indicating a plurality of frequencies and an implicit highest priority application indicator, wherein, when the indicator allows application of the implicit highest priority, a frequency which should be camped on for a device-to-device (D2D) operation from among the plurality of frequencies is regarded as having the highest priority.
Abstract:
A method and apparatus for indicating change of a coverage enhancement (CE) mode in a wireless communication system is provided. A CE mode for coverage enhancement may be defined. A user equipment (UE) determines whether the CE mode changes. If it is determined that the CE mode changes, the UE detaches with a network, and re-attaches with the network based on the changed CE mode.
Abstract:
A method and apparatus for determining priorities of buffer status reports (BSRs) in a wireless communication system is provided. A user equipment (UE) generates a BSR for uplink transmission to a network and a proximity-based services (ProSe) BSR for device-to-device (D2D) transmission between UEs, and prioritizes the BSR for uplink transmission over the ProSe BSR.