Vehicular repeater system and method therefor

Details Vehicular repeater system and method therefor Vehicular repeater system and method therefor

1996-10-02

1999-06-22

Vo, Nguyen

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455 8, 455527, H04B 715

Patent

active

059152087

ABSTRACT:
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).

REFERENCES:
patent: 4056779 (1977-11-01), Toler
patent: 4056780 (1977-11-01), Faulkner
patent: 4539706 (1985-09-01), Mears et al.
patent: 5056152 (1991-10-01), Truby et al.
patent: 5109526 (1992-04-01), Reed
patent: 5239666 (1993-08-01), Truby
patent: 5448766 (1995-09-01), Sanning et al.
Beaman, W. "Vehicular Mounted Repeater in Emergency Medical Services (EMS) Communications"; IEEE Transactions on Vehicular Technology vol. VT-28, No. 4, Nov. 1979.
Motorola Systems 9000 Vehicular Repeater System Instruction Manual 68PO7993D61-0, pp. iii-16, 1993.

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