METHOD AND SYSTEM FOR MULTI-ANTENNA PREAMBLES FOR WIRELESS NETWORKS PRESERVING BACKWARD COMPATIBILITY

摘要

A method for processing a wireless signal includes performing by one or more processors, selecting a plurality of training sequences from a preamble of the wireless signal. Each of the selected plurality of training sequences may include a plurality of energy tones. The selected plurality of training sequences from the preamble may be shifted, in time domain, to generate a plurality of subsequent preambles for transmission. Each of the generated plurality of subsequent preambles may include the plurality of energy tones. The preamble may include a legacy preamble and/or an 802.11(n) preamble. The shifting in the time domain may include circular shifting. The circular shifting may include forward circular shifting and/or backwards circular shifting.