Patent ID: 6807146
Filing Date: 2004-10-19
Classification: H04L

Abstract:
A communication system comprising:a first node for receiving a first signal; a plurality of second nodes for receiving a second signal; and a coordinator node for alternately transmitting in a first mode and in a second mode, wherein: the first mode generates the first signal having a first plurality of non-overlapping sub-channels conveying information, the first plurality of non-overlapping sub-channels collectively corresponding to the first node to receive the first signal, the second mode generates the second signal representative of a second plurality of non-overlapping sub-channels conveying information, and a plurality of groups of one or more sub-channels of the second plurality of non-overlapping sub-channels, each group corresponding to one of the plurality of second nodes to receive the second signal, and the plurality of second nodes simultaneously receives and processes the second signal, wherein processing the second signal generates, for each information-conveying group of one or more sub-channels corresponding to the one of the plurality of second nodes, a data stream representative of the information conveyed thereby.