US 12,408,207 B2
Demodulation reference signal configuration for uplink messages
Pinar Sen, San Diego, CA (US); Yongjun Kwak, San Diego, CA (US); Wei Yang, San Diego, CA (US); and Hwan Joon Kwon, San Diego, CA (US)
Assigned to Qualcomm Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 20, 2022, as Appl. No. 17/844,554.
Prior Publication US 2023/0413339 A1, Dec. 21, 2023
Int. Cl. H04W 74/0833 (2024.01); H04L 5/00 (2006.01); H04W 72/0453 (2023.01); H04W 74/00 (2009.01); H04W 74/08 (2009.01)
CPC H04W 74/0841 (2013.01) [H04L 5/0051 (2013.01); H04W 72/0453 (2013.01); H04W 74/004 (2013.01); H04W 74/0866 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A method for wireless communications at a user equipment (UE), comprising:
receiving control signaling indicating a demodulation reference signal configuration for an uplink message, wherein the demodulation reference signal configuration indicates a low-density parity-check code and a Reed-Muller code for the UE to use for encoding the uplink message or the demodulation reference signal configuration indicates a physical random access channel comb pattern for the UE to apply to a first portion of the uplink message, and wherein the control signaling further indicates that the UE is to refrain from including demodulation reference signals in at least the first portion of the uplink message based at least in part on the demodulation reference signal configuration, wherein refraining from including the demodulation reference signals in at least the first portion of the uplink message is associated with a channel estimation for a second portion of the uplink message;
encoding the uplink message without the demodulation reference signals in at least the first portion of the uplink message in accordance with the demodulation reference signal configuration; and
transmitting the uplink message based at least in part on encoding the uplink message.