| 摘要 |
In a communication environment (140) having multiple vehicular repeater systems (110, 120) operating according to a priority scheme designating primary responsibility for retransmitting signals, a vehicular repeater system (120) supports automatic transitioning from a non-priority mode to a priority mode (410, 420). The vehicular repeater system (120), when operating in a non-priority mode, detects that a communication signal was submitted for retransmission by a priority vehicular repeater system (440), and monitors for a particular time period to detect an acknowledgment signal (450). When no acknowledgment signal is detected within the particular period, the priority scheme is modified, preferably such that the non-priority vehicular repeater assumes priority repeater status (460). In another aspect of the invention, the non-priority vehicular repeater system detects when the priority vehicular repeater system is unavailable, non-functional, or operating in a reduced functionality mode, and as a result assumes priority status (610, 620, 630).
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