METHOD AND DEVICE FOR UPDATING SYSTEM INFORMATION IN WIRELESS LAN SYSTEM

摘要

The present invention relates to a method and a device for updating system information in a wireless LAN system. A method for updating system information in a station (STA) of a wireless communication system may comprise transmitting, by the STA which stores system information and a configuration change count value of a previously linked preferred access point (AP), a probe request frame for active scanning to the preferred AP; and receiving a probe response frame from the preferred AP. Preferably, the probe request frame includes a configuration change count field previously acquired from the preferred AP, and if a value of the configuration change count field included in the probe request frame is different from a present configuration change count value of the preferred AP, the probe response frame may include one or more elements of system information which should be updated by the STA.

主权项

1. A method for updating system information in a station (STA) of a wireless communication system, comprising:
transmitting, via the STA, a probe request frame, including a configuration change count field, to a preferred access point (AP); and receiving, via the STA, a probe response frame from the preferred AP, wherein if a value of the configuration change count field included in the probe request frame is different from a current count value of the preferred AP, the probe response frame includes one or more elements of system information need to be updated to the STA.