Patent ID: 8396023
Filing Date: 2013-03-12
Classification: H04B,H04W

Abstract:
1. A method of conducting radio frequency (RF) communications between transceivers of a communication network by transmitting on selected sub-channels contained within primary user channels of a prescribed RF communication band, said method comprising the steps of: (a) monitoring said prescribed RF communication band for the presence of communication activity on said sub-channels; (b) identifying sub-channels, which exhibit energy less than a prescribed value, as effectively clear sub-channels that are potentially available for use by said transceivers; (c) communicating said identified sub-channels to all said transceivers on said network; (d) selecting subsets of sub-channels comprising said identified sub-channels; (e) causing said transceivers to synchronously hop among and transmit in bursts on said selected subsets of identified sub-channels whereby said transceivers are configured to use the same subset of identified sub-channels simultaneously, and logically adjacent symbols are simultaneously transmitted on sub-channels that are spectrally separated by at least one other clear sub-channel.