Patent ID: 7486737
Filing Date: 2009-02-03
Classification: H04L,H04W

Abstract:
1. A communication device comprising: a first receiver able to receive data frames of a first modulation type; a second receiver able to receive data frames of a second modulation type; an autodetection module able to automatically detect whether an incoming frame is of the first modulation type or the second modulation type; and a physical layer controller able to configure the communication device to operate in a mode of communication selected from a first communication mode, in which the first receiver is configured to receive the data frames of the first modulation type, a second communication mode, in which the second receiver is configured to receive the data frames of the second modulation type, and an autodetection mode, in which the autodetection module is to activate either the first receiver or the second receiver, wherein said controller is able to configure said communication device based on at least one criterion relating to a prior transmission received or transmitted by the communication device and said prior transmission comprises an outgoing Request To Send frame modulated in one of said first and second modulation types, and wherein the controller is able to configure said communication device to operate in either said first or second communication modes based on the modulation type of said Request To Send frame.