METHOD OF FRAME TRANSMISSION FOR TALK-AROUND DIRECT COMMUNICATION TERMINAL

摘要

The present invention can generate a communications link between direct communications terminals without a base station and synchronize reference time in the base station or a GSP signal by using a method of transmitting a frame of the direct communications terminal which comprises periodically repeating and transmitting a search frame, a link ID frame, a ranging frame, a data frame, a main synchronization channel, and an auxiliary synchronization channel.