Method and apparatus for low-power scanning in WLAN system

摘要

The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for low-power scanning in a WLAN system. A method for a station (STA) scanning in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: transmitting a null data packet (NDP) probe request frame; and receiving from an access point (AP) a probe reply frame as a replay to the NDP probe request frame, wherein the NDP probe request frame can include a compressed service set ID (SSID).

主权项

1. A method for performing scanning by a station (STA) in a wireless communication system, the method comprising:
transmitting a null data packet (NDP) probe request frame on a first channel,
wherein the NDP probe request frame includes an STF (Short Training Field), LTF (Long Training Field) and SIG (Signal) field without a data field, and wherein the SIG field includes a compressed service set ID (SSID) field, andwherein the compressed SSID field is set to a 32-bit cyclic redundancy check (CRC) calculated value when the compressed SSID field is defined as a 32-bit field and set to 16 least significant bits (LSBs) of a 32-bit CRC calculated value of the SSID when the compressed SSID field is defined as a 16-bit field; and performing the scanning on the first channel, when a probe response frame in response to the NDP probe request frame is received from an access point (AP) on the first channel.