Patent ID: 9253753
Filing Date: 2016-02-02
CPC Classification: G08G,H04L,H04W

Claim Text:
1. A device of manufacture for use in a vehicle-to-vehicle (V2V) communication system comprising: a V2V transceiver adapted to operate in a transmitting vehicle; wherein the V2V transceiver is adapted to accept as input a subject vehicle position and a subject vehicle heading; wherein the V2V transceiver is adapted to broadcast a V2V safety message comprising (i) the subject vehicle position; (ii) the subject vehicle heading; (iii) a subject vehicle speed; a basic time interval of a fixed, predetermined duration, wherein the basic time interval repeats continuously; wherein the basic time interval comprises an integer n time slots of predetermined duration, sequentially enumerated from 1 to n, and contiguous; wherein the V2V transceiver is adapted to receive messages from another V2V transceiver wherein the V2V transceiver and the other V2V transceiver use the same basic time interval, comprising the same n time slots, and wherein all basic time intervals are time synchronized; wherein the V2V transceiver selects a selected time slot from the n time slots; wherein the V2V transceiver continues to transmit in the selected time slot, until either (i) a message collision in the selected time slot occurs, or (ii) a re-evaluation time interval expires, thereupon selecting a new time slot.