Patent ID: 8537795

Claim:
A wireless mobile station comprising: a receiver able to receive from a sending station via a forwarding station a data frame including a forwarding indication field having a predefined value indicating said data frame is forwarded, as is, by the forwarding station to said wireless mobile station, a first station address field including an address of said sending station, a second station address field including an address of said wireless mobile station, and a forwarding station address field including an address of said forwarding station; a processor to exchange a content of the first station address field with a content of the second address field; and a transmitter to send a block acknowledge (BA) frame to acknowledge receipt of said data frame to the sending station via the forwarding station, said BA frame including the forwarding indication field having said predefined value, the first station address field including the address of said wireless mobile station, the second station address field including the address of said sending station, and the forwarding station address field including the address of said forwarding station.