Patent ID: 8521201
Filing Date: 2013-08-27
Classification: H04W

Abstract:
1. A channel assignment optimization method in a communication system, wherein the communication system comprises an initialization base station, and the multi-stage neighboring base stations of the initialization base station, at a current-stage neighboring base station among the multi-stage neighboring base stations, the method comprises steps of: receiving a channel assignment optimization testing message from an upper-stage neighboring base station; determining whether there is a channel all lower-stage neighboring base stations working on the channel have a respective backup idle channel; if there is a channel all lower-stage neighboring base stations working on the channel have a respective backup idle channel, sending a channel assignment optimization response message having “feasible” indication to the upper-stage neighboring base station; and when a channel switching request message is received from the upper-stage neighboring base station, requesting all lower-stage neighboring base stations that work on the channel to switch to their respective backup idle channel; after a channel switching response message having “success” indication is received from each of all lower-stage neighboring base stations, sending a channel switching response message having “success” indication to the upper-stage neighboring base station, and making the current-stage neighboring base station work on the channel.