US 11,658,857 B2
Phase tracking reference signal for sub-symbol phase tracking
Tianyang Bai, Somerville, NJ (US); Juergen Cezanne, Ocean Township, NJ (US); Sundar Subramanian, San Diego, CA (US); and Junyi Li, Chester, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 29, 2020, as Appl. No. 17/37,124.
Application 17/037,124 is a division of application No. 16/215,196, filed on Dec. 10, 2018, granted, now 10,841,143.
Claims priority of provisional application 62/897,833, filed on Dec. 12, 2017.
Prior Publication US 2021/0014098 A1, Jan. 14, 2021
Int. Cl. H04L 27/26 (2006.01); G06F 17/14 (2006.01); H04B 1/04 (2006.01); H04B 1/16 (2006.01); H04B 1/40 (2015.01)
CPC H04L 27/26134 (2021.01) [G06F 17/141 (2013.01); H04B 1/04 (2013.01); H04B 1/16 (2013.01); H04B 1/40 (2013.01); H04L 27/2636 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method for wireless communication, comprising:
determining a discrete Fourier transform (DFT) configuration for a plurality of symbols;
generating, based at least in part on the DFT configuration, a plurality of DFT-precoded symbols corresponding to the plurality of symbols;
mapping the plurality of DFT-precoded symbols to a corresponding plurality of subcarriers, the plurality of subcarriers including at least a subset of subcarriers that are adjacent in frequency;
mapping non-DFT precoded symbols to additional subcarriers, wherein at least one of the non-DFT precoded symbols is mapped to a subcarrier that is interposed in frequency between two subcarriers of the plurality of subcarriers; and
transmitting the plurality of DFT-precoded symbols via a wireless signal that includes the plurality of subcarriers and the additional subcarriers.