Patent ID: 8654711
Filing Date: 2014-02-18
Classification: H04W

Abstract:
1. A method for determining an operation channel in a multi-hop network with a set of nodes, and one of the nodes is a network management node, comprising the steps of: selecting, in the network management node, the operation channel; broadcasting, by the network management node, a channel information packet including the operation channel in the set of channels; receiving the channel information packet in each other nodes, either directly from the network management node or from an intermediate node that received and rebroadcasted the channel information packet; and setting the operation channel in each node according to the channel information packet until the network is formed, wherein a number of nodes is M and a number of channels is N, and a time to broadcast the channel information packet on all channels is where T i SW is time needed to switch channel to an i th channel, T i BK is a random back-off time on the i th channel, and T i BCN is a transmission time on the i th channel for the channel information packet.