METHOD AND APPARATUS FOR TRACKING CHANNEL TIMING MESSAGE AND SUPPORTING CHANNEL SCANNING IN DIGITAL MOBILE RADIO COMMUNICATION SYSTEM Russian patent published in 2015 - IPC H04W56/00 

FIELD: radio engineering, communication.

SUBSTANCE: non-leading radio station operating on a communication channel, determines (610) a propagation period during which channel timing is to be propagated from a leading radio station to non-leading radio stations operating on the communication channel; the non-leading radio station (620) implements a first scanning pattern during the propagation period to scan a CT designated channel for a control timing message with a timing signal sent from the leading radio station; the first scanning pattern involves scanning the CT designated channel during every other scan interval and scanning non-priority channels and priority channels during scan intervals not used on the CT designated channel.

EFFECT: enabling radio stations operating in direct mode to track channel timing and support channel scanning.

14 cl, 11 dwg