Patent ID: 7099625
Filing Date: 2006-08-29
Classification: H04W

Abstract:
1. An automobile communications method for an on-board mobile station across a plurality of radio zones which are consecutively arranged along a road, comprising: providing each of the radio zones with a plurality of M communication frequencies; providing N plurality of time slots in one period in each of said radio zones; switching between said M communication frequencies within each of the radio zones using a time division scheme such that a different one of said N time slots is allocated for adjacent radio zones for each of said plurality of M communication frequencies by sequentially switching from one to another at a time of every N/M time slot; and switching a time slot allocated to the on-board mobile station to continuously communicate with the on-board mobile station across the plurality of radio zones, wherein communication between the plurality of radio zones and the on-board mobile station is made using a single one of said M communication frequencies within at least a single radio zone.