Patent ID: 8675557
Filing Date: 2014-03-18
Classification: H04W

Abstract:
1. A method for communication between nodes in a wireless network, comprising the steps of: providing multiple wireless channels with different frequency bands in a wireless ad hoc or mesh network; and operating said nodes in said wireless network to operate on said different ones of said multiple wireless channels, said operating step including i) assigning each said node a home channel where each said node usually resides, and ii) when a node that leaves said node's home channel and switches to another of said multiple channels as a temporary operating channel, providing information about said temporary operating channel on said node's home channel, wherein a sending node broadcasts a channel redirection message on said sending node's home channel in case said sending node has pending packets for a receiving node that has another home channel, wherein said node successively broadcasts said channel redirection message on rendezvous channels, wherein said sending node, in case said sending node knows said receiving node's home channel, switches to that channel and broadcasts a synchronization request on that channel, wherein said receiving node, in case said receiving node is on said receiving node's home channel, responds to said sending node with a synchronization response, wherein in case said receiving node is not on said receiving node's home channel, other nodes on said receiving node's home channel respond to said sending node with a channel redirection message, wherein said sending node, in case of receiving no response and/or in case of not knowing said receiving node's home channel, searches for said receiving node successively through the list of the rendezvous channels, and wherein said sending node, in case said sending node does not find said receiving node on any of said rendezvous channels, proceeds to search for the receiver on the remaining data channels.