Patent ID: 8514799
Filing Date: 2013-08-20
Classification: H04W

Abstract:
1. A method of operating channel request by a first station in a regulatory domain where an unlicensed device is permitted to operate with regard to a licensed device in a wireless local area network (WLAN), the method comprising: receiving, by the first station, from a second station, a list of available channels; selecting, by the first station, a first channel set from the available channels; transmitting, by the first station, to the second station, a first frame including a first operating class field and a first channel number field, wherein the first operating class field indicates a value of an operating class of a first channel included in the first channel set request and the first channel number field indicates a value of the first channel, and the first operating class field and the first channel number field together specify a channel frequency and a channel bandwidth that is requested for use by the first station; and receiving, by the first station, from the second station, a second frame including a second operating class field and a second channel number field, wherein the second operating class field indicates a value of an operating class of a second channel included in a second channel set and the second channel number field indicates a number value of the second channel, and the second operating class field and the second channel number field together specify a channel frequency and a channel bandwidth that the second station has granted permission for use by the first station, wherein the first channel set is operating channels preferred by the first station based on a White Space Map.