Abstract: An example method of ultra-wideband (UWB) sensing performed by a wireless communication device, the method comprising determining a first channel impulse response (CIR) estimation of a first frequency channel based on a radio access technology (RAT) session, wherein the RAT is different from UWB. The method also comprises determining a second CIR estimation of a second frequency channel based on a UWB session and determining a third CIR estimation of the first frequency channel based on determining a phase difference between the third CIR estimation and the first CIR estimation. The method further comprises determining a total CIR estimation for a combined frequency channel comprising the first frequency channel and the second frequency channel based on stitching the first CIR estimation, the second CIR estimation, and the third CIR estimation.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive a data packet that includes at least in part a preamble, an encoded block, and a payload. The apparatus may detect the preamble of the data packet at a last symbol of the preamble or prior to the last symbol of the preamble. The apparatus may compute a branch metric for each of a plurality of transitions between states. The apparatus may initialize a path metric for each of a plurality of non-synchronization states and synchronization states. In certain aspects, each of the synchronization states may be associated with the preamble. The apparatus may determine a survivor path for each of the non-synchronization states and synchronization states based at least in part on a respective path metric. The apparatus may determine a traceback timing.