US 11,777,764 B2
Sounding reference signal waveform design for wireless communications
Jing Sun, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Kapil Bhattad, Bangalore (IN); and Tanumay Datta, Bangalore (IN)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Mar. 24, 2020, as Appl. No. 16/828,368.
Claims priority of application No. 201941012233 (IN), filed on Mar. 28, 2019.
Prior Publication US 2020/0313932 A1, Oct. 1, 2020
Int. Cl. H04L 12/28 (2006.01); H04L 25/02 (2006.01); H04L 5/00 (2006.01); H04W 74/08 (2009.01); H04L 27/26 (2006.01); H04J 1/16 (2006.01)
CPC H04L 25/0226 (2013.01) [H04L 5/0007 (2013.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 27/2605 (2013.01); H04L 27/2613 (2013.01); H04W 74/0808 (2013.01); H04L 27/26132 (2021.01)] 28 Claims
OG exemplary drawing
 
1. A method for wireless communication at a user equipment (UE), comprising:
identifying a sounding reference signal configuration for transmission of a sounding reference signal to a base station, the sounding reference signal configuration providing sounding reference signal resources within at least a first orthogonal frequency division multiplexing symbol, a second orthogonal frequency division multiplexing symbol, a third orthogonal frequency division multiplexing symbol, and a fourth orthogonal frequency division multiplexing symbol;
mapping, based at least in part on the sounding reference signal configuration, a first portion of the sounding reference signal to occupy a first subset of frequency resources of the first orthogonal frequency division multiplexing symbol, a second portion of the sounding reference signal to occupy a second subset of frequency resources of the second orthogonal frequency division multiplexing symbol, a third portion of the sounding reference signal to occupy a third subset of frequency resources of the third orthogonal frequency division multiplexing symbol, and a fourth portion of the sounding reference signal to occupy a fourth subset of frequency resources of the fourth orthogonal frequency division multiplexing symbol, wherein the first subset of frequency resources, the second subset of frequency resources, the third subset of frequency resources, and the fourth subset of frequency resources are non-uniformly staggered in frequency relative to each other, wherein the first subset of frequency resources is offset by zero resource elements relative to a reference point, the second subset of frequency resources is offset by four resource elements relative to the reference point, the third subset of frequency resources is offset by two resource elements relative to the reference point, and the fourth subset of frequency resources is offset by six resource elements relative to the reference point; and
transmitting the sounding reference signal to the base station based at least in part on the mapping.