METHOD AND APPARATUS FOR DEVICE-TO-DEVICE TERMINAL FOR ACQUIRING SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM

摘要

An embodiment according to the present invention, with respect to a method for a terminal for acquiring device-to-device synchronization, comprises the steps of: receiving from two or more nodes, synchronization signals comprising hop count values; and selecting from among the synchronization signals a synchronization signal to be used for acquiring synchronization, wherein if the hop count values of the synchronization signals received from two or more nodes are different, then the synchronization signal with the lowest hop count value is selected as the synchronization signal to be used in acquiring synchronization, and if the hop count values are the same, then the synchronization signal to be used for acquiring synchronization is selected by utilizing information regarding the signal qualities of the current hop and the previous hop.

主权项

1. A method of obtaining D2D (device-to-device) synchronization by a user equipment in a wireless communication system, the method comprising:
receiving synchronization signals containing hop count values from two or more nodes; and selecting a synchronization signal to be used to obtain synchronization from the synchronization signals, wherein if the hop count values are different from each other, a synchronization signal with a lowest hop count value is selected as the synchronization signal to be used to obtain the synchronization, and wherein if the hop count values are identical to each other, the synchronization signal to be used to obtain the synchronization is selected by using information on a signal quality of a current hop and information on a signal quality of a previous hop before the current hop.