Single user and multi-user data unit formats in long-range wireless local area networks (WLANS)

摘要

A method includes generating a preamble of a first data unit according to a first format. Generating the preamble of the first data unit according to the first format includes generating a first preamble portion of the first data unit and generating a second preamble portion of the first data unit. The first preamble portion of the first data unit includes information indicating to a receiving device that the first data unit is a single-user data unit, and the second preamble portion of the first data unit follows the first preamble portion of the first data unit. The method also includes applying a beamforming steering matrix to the second preamble portion of the first data unit but not to the first preamble portion of the first data unit.