System and method communicating using an in-vehicle system

H - Electricity – 04 – L

Patent

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Details

H04L 27/00 (2006.01) H04L 1/00 (2006.01) H04M 3/51 (2006.01)

Patent

CA 2733889

A system and method to be used with first and second devices (12, 36) where the first and second devices are capable of communicating using a subset of different modulation schemes wherein the subset includes at least first and second different modulation schemes, the method for optimizing transmission of data from the first device to the second device, the method comprising the acts of at the fist device (12), when data is to be transmitted from the first device (12) to the second device (36), receiving (232) at least a portion of a trigger signal from the second device wherein the transmitted trigger signal includes data transmitted using a sequence of at least two of the modulation schemes form the subset, the portion of the trigger signal received being a received trigger signal, analyzing (236) the received trigger signal to identify (238) one of the modulation schemes from the subset as a function of the received trigger signal as an initial modulation scheme to be used to transmit data to the second device (36) and transmitting the data from the first device (12) to the second device (36) using the initial modulation scheme.

L'invention porte sur un système et sur un procédé devant être utilisés avec des premier et second dispositifs (12, 36), les premier et second dispositifs étant capables de communiquer en utilisant un sous-ensemble de différents schémas de modulation, le sous-ensemble comprenant au moins des premier et second schémas de modulation différents, le procédé servant à optimiser une transmission de données du premier dispositif au second dispositif, le procédé comprenant les opérations consistant, au niveau du premier dispositif (12), lorsque des données doivent être transmises du premier dispositif (12) au second dispositif (36), à recevoir (232) au moins une partie d'un signal déclencheur provenant du second dispositif, le signal déclencheur transmis comprenant des données transmises à l'aide d'une séquence d'au moins deux des schémas de modulation du sous-ensemble, la partie du signal déclencheur reçue étant un signal déclencheur reçu, analyser (236) le signal déclencheur reçu pour identifier (238) l'un des schémas de modulation du sous-ensemble en fonction du signal déclencheur reçu en tant que schéma de modulation initial devant être utilisé pour transmettre des données au second dispositif (36), et transmettre les données du premier dispositif (12) au second dispositif (36) à l'aide du schéma de modulation initial.

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