Patent ID: 8477813
Filing Date: 2013-07-02
Classification: H04L,H04W

Abstract:
1. In a wireless communication system wherein communication devices exchange information utilizing data units that conform to a first format, a method for transmitting a beamforming training (BFT) data unit that conforms to a second format, wherein a length of the BFT data unit is shorter than lengths supported by the first format, wherein the BFT data unit is for transmitting beamforming training information, the method comprising: generating a first portion of the BFT data unit to indicate to a receiving device that the BFT data unit conforms to the second format, wherein the first portion of the BFT data unit includes a preamble and at least a beginning portion of a physical layer (PHY) header, wherein the PHY header conforms to the first format; generating a second portion of the BFT data unit according to the second format, wherein the second portion of the BFT data unit includes a payload that does not conform to the first format, and wherein the payload includes BFT information elements; generating the BFT data unit to include the first portion and the second portion; and causing the BFT data unit to be transmitted to the receiving device.