Aliasing removal for wireless channel captures

Abstract

Disclosed are techniques for aliasing removal for wireless channel captures. In an aspect, a wireless station (STA) may estimate a wireless channel to produce a first frequency domain (FD) channel estimate. The STA may anti-alias the first FD channel estimate to produce a second FD channel estimate, wherein anti-aliasing the first FD channel estimate to produce a second FD channel estimate comprises removing, from the first FD channel estimate, signal energy associated with signals having a delay spread larger than a maximum tolerable delay spread. The STA may tone-decimate the second FD channel estimate to produce a third FD channel estimate. The STA may store the third FD channel estimate as a channel capture. In some aspects, the STA may send the channel capture to another entity as channel capture feedback, may performing a sensing operation using the channel capture, or both.

Dependencies are inferred from the claim text.