Patent ID: 8155658
Filing Date: 2012-04-10
Classification: H04W

Abstract:
1. A method for altering a channel bandwidth in a wireless system, the method comprising: sending a report request message to a wireless device, wherein the report request message comprises a request for an indicator of an ability of the wireless device to change the channel bandwidth from a first channel bandwidth to a second channel bandwidth; receiving a report response message from the wireless device at an access node, wherein the report response message comprises a channel condition for the wireless device; changing the channel bandwidth from the first channel bandwidth to the second channel bandwidth based upon the channel condition; monitoring the channel condition to determine if the channel condition deteriorates; and altering the channel bandwidth to decrease a number of subchannels if the channel condition deteriorates, wherein the channel condition is determined to have deteriorated when there is a deterioration in at least one of a carrier interference to noise ratio and a received signal strength indication, and wherein altering the channel bandwidth to decrease the number of subchannels if the channel condition deteriorates comprises sending a bandwidth alteration message to the wireless device to direct the wireless device to utilize the decreased number of subchannels.