Automobile communications method and system

Details Automobile communications method and system Automobile communications method and system

B - Operations, Transporting

60

R

B60R 11/02 (2006.01) B60R 16/02 (2006.01) H04Q 7/20 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2276800

An automobile communication system which can ensure fast hand-over without putting unnecessary burden on mobile stations and can adequately handle changes in road condition is disclosed. For each of the radio zones formed by roadside transceivers arranged along a road, a plurality of transmission and reception frequencies f t1/f r1 and f t2/f r2 are provided. The in-use transmission/reception frequencies in adjoining radio zones are switched at predetermined timing such that they are not permitted to be overlapped. By switching a time slot allocated to the vehicle-mounted transceiver, the vehicle-mounted transceiver can continuously communicate with the roadside transceivers at the same communication frequency over the radio zones.

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