Abstract:
Disclosed is a method for supporting synchronization of a user equipment (UE) for D2D communication. The method includes: first scanning for checking a synchronization signal transmitted from a nearby UE; establishing the UE as a synchronization-transmitting UE, based on a result of the first scanning; transmitting a synchronization channel including timer value information indicating scanning time at which a scanning starts; and second scanning based on the timer value information.
Abstract:
Disclosed is a method for controlling interference for D2D communication. The method includes: identifying whether a position of a first user device belongs to a first area that satisfies a predetermined criterion; and if the position of the first user device is identified to belong to the first area, determining some resources constituting dedicated resources of the first area, among available resources of a signal for discovering a counterpart user device of D2D communication by the first user device, as resources of the signal.
Abstract:
A method for controlling a path between terminals in a wireless communication system includes measuring a channel quality of a direct path with the another terminal when receiving a request for measuring the channel quality of the direct path from a higher entity, transmitting a first message comprising a result of the measuring the channel quality to the higher entity, and, when receiving a second message to instruct to switch to the direct path from the higher entity, setting the direct path with the another terminal. another embodiments including a terminal and a network entity are also disclosed.
Abstract:
A method for operating a device in a wireless communication system supporting Device to Device (D2D) communication system includes receiving a reference signal from each of at least one transmitting device, estimating a frequency offset between the reference signals and a comparison reference signal corresponding to the reference signals, and adjusting a transmit frequency of a voltage controlled oscillator of the device using the estimated frequency offset estimation. An apparatus for compensating for a frequency offset of a device in a wireless communication system supporting Device to Device (D2D) communication system includes a frequency offset estimator configured to receive reference signals from each of at least one transmitting device, and estimating a frequency offset between the reference signals and a comparison reference signal corresponding to the reference signals, and a voltage controlled oscillator configured to adjust a transmit frequency using the estimated frequency offset.