US 11,659,575 B2
Phase coherent demodulation reference signal techniques for cross-slot channel estimation
Hung Dinh Ly, San Diego, CA (US); and Gokul Sridharan, Sunnyvale, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jan. 29, 2021, as Appl. No. 17/163,277.
Prior Publication US 2022/0248405 A1, Aug. 4, 2022
Int. Cl. H04W 4/00 (2018.01); H04W 72/04 (2023.01); H04L 5/00 (2006.01); H04W 72/0446 (2023.01)
CPC H04W 72/0493 (2013.01) [H04L 5/0048 (2013.01); H04W 72/042 (2013.01); H04W 72/0446 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for wireless communication at a user equipment (UE), comprising:
receiving, from a base station, control signaling indicating a plurality of resources for transmitting a plurality of uplink shared channel transmissions and a plurality of demodulation reference signals having phase continuity across a plurality of transmission time intervals;
receiving, from the base station, a control message indicating a cancellation of a first resource of the plurality of resources;
determining one or more phase continuity conditions for the plurality of resources based at least in part on receiving the control message indicating the cancellation of the first resource; and
transmitting, in accordance with the one or more phase continuity conditions and in one or more remaining resources of the plurality of resources, at least a subset of the plurality of uplink shared channel transmissions, a first subset of the plurality of demodulation reference signals having a first phase continuity, and a second subset of the plurality of demodulation reference signals having a second phase continuity based at least in part on the first resource including one or more symbols allocated for uplink shared channel transmission.