Patent ID: 8176378

Claim:
A system for communicating information in a wireless communication system, the system comprising: one or more circuits of a first device that enable selection of a sequence of protocol data units that are used as sounding frames for antenna selection in a multiple input, multiple output (MIMO) system, in which a sequence of sounding frames are to be transmitted from the first device during an antenna selection procedure; one or more circuits of a second device that is operable to receive the sounding frames from the first device for use in antenna selection during the antenna selection procedure, the one or more circuits of the second device identifying when a failure of a reception of one of the sounding frames occurs or when a prolonged delay occurs between two sequential sounding frames, and transmitting back to the first device, a failure indication that includes a value corresponding to a frame number where the failure of reception or prolonged delay occurs in the sequence of sounding frames; and wherein the one or more circuits of the first device, upon receiving the failure indication from the second device, retransmits sounding frames commencing from the frame number identified by the value for the sequence of sounding frames.