Backward compatible L-LTF design for implementation friendly preamble

摘要

A backward compatible L-LTF design that can provide control information in addition to channel estimation information in conjunction with Wi-Fi communication techniques. A wireless transmission may be received by a wireless device. The wireless transmission may include a physical layer (PHY) preamble and PHY data. The PHY preamble may include a field that has a training sequence configured for channel estimation and control information. The control information may be determined by the wireless device, and the wireless device may configure reception parameters for the wireless transmission based on the control information.

主权项

1. A method, comprising:
by a wireless device:
receiving a wireless transmission, wherein the wireless transmission comprises a physical layer (PHY) preamble and PHY data, wherein the PHY preamble comprises a legacy long training field (L-LTF), wherein the L-LTF comprises channel estimation information and control information for the wireless transmission, wherein the control information is encoded in the channel estimation information in a manner to allow for backwards compatibility with devices unable to decode the control information;performing channel estimation using the channel estimation information from the L-LTF;determining the control information from the L-LTF field, wherein said determining the control information from the L-LTF field comprises decoding the control information from the channel estimation information; andconfiguring reception parameters for the wireless transmission based on the control information.