Patent ID: 8144642

Claim:
Method for controlling synchronization in a communication system (KS) covering at least one cell (FZ 1 , FZ 2 , FZ 3 ) for wireless communication with cell-limited and/or cross-cell wireless direct communications (DV 1 , DV 2 ) between mobile components (H-MT 1 , H-MT 2 , H-MT 3 , H-MT 4 ) synchronized with a base station (BS) characterized in that during direction communications between the mobile components (H-MT 1 , H-MT 2 , H-MT 3 , H-MT 4 ), a first mobile component (H-MT 1 , H-MT 3 ), which at least temporarily assumes a “radio fixed part” function of the base station (BS), provides a “continuous broadcast downlink service” and, by virtue of special information included in the transmission, identifies itself as a hybrid mobile component, so that mobile components (MT 1 -MT 3 , MT 7 ) trying directly or indirectly through a repeater (RP 1 ) to synchronize with the base station (BS) can tell that the service provided by the hybrid mobile component (H-MT 1 , H-MT 3 ) either is not continuously available or is only a partial service.