Patent ID: 6965639
Filing Date: 2005-11-15
Classification: H04L,Y02D

Abstract:
1. A communication apparatus that selects between a plurality of transmission methods and performs communication, the communication apparatus comprising: a transmission method determiner that selects one of the plurality of transmission methods upon a transmission of a signal; a control signal divider that divides information of the plurality of transmission methods into low speed control signals and high speed control signals, associates the low speed control signals and the high speed control signals with the plurality of transmission methods, and determines which combination of a low speed control signal and a high speed control signal corresponds to the transmission method selected in the transmission method determiner; and a transmitter that, when the low speed control signal in the combination determined in the control signal divider differs from a low speed control signal that was transmitted in a previous transmission, transmits the low speed control signal in the combination determined in the control signal divider.