Patent ID: 8792343

Claim:
A wireless apparatus for a traffic filter service (TFS) in a wireless local area network, the wireless apparatus comprising: a transceiver configured to transmit and receive a radio signal; and a processor operably coupled to the transceiver and configured to: transmit a first TFS request message to an access point (AP), the first TFS request message including a TFS request element for defining information about requesting traffic filters; receive a first TFS response message from the AP in response to the first TFS request message, the first TFS response message including a TFS response element for defining information about a status of the requesting traffic filters; and receive a TFS notification frame from the AP when a frame received by the AP matches a matched traffic filter of the requesting traffic filters and a ‘Notify’ bit-field of the TFS request element is set to 1, wherein the TFS request element includes one or more TFS sub-element fields, a TFS ID field and a TFS action code field, the one or more TFS sub-element fields specifying the requesting traffic filters, the TFS ID field indicating a unique ID for the requesting traffic filters, the TFS action code field defining actions taken at the AP when the frame matches the matched traffic filter, wherein the TFS action code field includes a ‘Delete’ bit-field and the ‘Notify’ bit-field, the ‘Delete’ bit-field indicating whether the matched traffic filter is to be deleted when the frame matches the matched traffic filter, the ‘Notify’ bit-field indicating whether a TFS notification frame is to be sent when the frame matches the matched traffic filter, wherein the TFS response element includes one or more TFS status sub-element fields for defining information about the status of the requesting traffic filters, and wherein the TFS notification frame includes a TFS ID number field and a TFS ID list field, the TFS ID number field indicating a total number of TFS IDs in the TFS ID list field, the TFS ID list field indicating the matched traffic filter.