Patent ID: 8174973

Claim:
A procedure for a traffic filter service (TFS) in a wireless local area network, the procedure comprising: transmitting a first TFS request message to an access point (AP), the first TFS request message including one or more TFS request elements for defining information about requesting traffic filters, wherein each of the one or more TFS request elements includes one or more TFS sub-elements fields for specifying a set of the requesting traffic filters, a TFS ID field for indicating a unique ID for the set of the requesting traffic filters specified in the TFS sub-elements field, and a TFS action code field for defining actions taken at the AP when a frame matches a traffic filter of the requesting traffic filters, and wherein the TFS action code field comprises a ‘Delete’ bit-field for indicating whether the traffic filter is to be deleted when the frame matches the traffic filter and a ‘Notify’ bit-field for indicating whether a TFS notification frame is to be sent when the frame matches the traffic filter; receiving, from the AP in response to the first TFS request message, a first TFS response message including one or more TFS response elements for defining information about the status of the requesting traffic filters, wherein each of the one or more TFS response elements includes one or more TFS status sub-elements for defining information about the status of the requesting traffic filters; and receiving the TFS notification frame from the AP when the frame received by the AP matches the traffic filter and the ‘Notify’ bit-field of the one or more TFS request elements is set to 1, 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, and the TFS ID list field indicating a list of matched traffic filter sets.