Patent ID: 8717956
Filing Date: 2014-05-06
Classification: H04W,Y02D

Abstract:
1. A method for adaptively performing power saving in a station of a wireless communication system, comprising: receiving first power-save capability information from an access point (AP), the first power-save capability information containing information on power-save schemes supported by a media access control (MAC) layer of the AP; transmitting second power-save capability information to the AP in response to the first power-save capability information, the second power-save capability information containing information on power-save schemes supported by a MAC layer of the station; transmitting power-save policy information, into which properties of traffics used in the station are reflected, to the AP; and performing a power-save function while interworking with the MAC layer of the station, according to the power-save policy information based on a predetermined power-save scheme, wherein the predetermined power-save scheme comprises a common power-save scheme among the power-save schemes supported by the MAC layer of the AP and the power-save schemes supported by the MAC layer of the station, wherein the first power-save capability information further contains any one or more of information on the power-save function is performed by reflecting the changed information period at which the first power-save capability information is noticed and information on an effective period of the first power-save capability information, and wherein the second power-save capability information further contains any one or more of information on the power-save function is performed by reflecting the changed information period at which the second power-save capability information is noticed and information on an effective period of the second power-save capability information.