Wireless apparatus for high-efficiency (HE) communication with additional subcarriers

摘要

Embodiments of an access point and method for high-efficiency WLAN (HEW) communication are generally described herein. In some embodiments, the access point may be configured to operate as a master station and may configure an HEW frame to include a legacy signal field (L-SIG), an HEW signal field (HEW SIG-A) following the L-SIG, and one or more HEW fields following the HEW SIG-A. The L-SIG may be configured for transmission using a legacy number of data subcarriers, a legacy number of pilot subcarriers and a number of additional reference subcarriers modulated with a known reference sequence. At least one symbol of the HEW SIG-A and the one or more HEW fields following the HEW SIG-A of the HEW frame may be configured for transmission using additional data subcarriers. The additional data subcarriers may correspond to the additional reference subcarriers of the L-SIG.

主权项

1. A wireless apparatus configured for operation as a high-efficiency (HE) station (HE-STA), the apparatus comprising:
memory; and processing circuitry configured to: decode a legacy signal field (L-SIG) of a HE data unit, the L-SIG comprising four reference subcarriers, the four reference subcarriers comprising two subcarriers at each edge a 20 MHz channel; and decode a HE-signal field (HE-SIG-A) of the HE data unit, the HE-SIG-A comprising a total number of data subcarriers including four data subcarriers corresponding in frequency to the four reference subcarriers of the L-SIG, the four data subcarriers comprising two subcarriers at each edge of the 20 MHz channel, wherein the four reference subcarriers of the L-SIG are in addition to a legacy number of data subcarriers included in the L-SIG.