US 12,143,324 B2
Demodulation reference signal (DMRS) enhancements and bundling on physical channels
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 Dec. 16, 2021, as Appl. No. 17/553,597.
Claims priority of provisional application 63/144,352, filed on Feb. 1, 2021.
Prior Publication US 2022/0247528 A1, Aug. 4, 2022
Int. Cl. H04L 5/00 (2006.01); H04L 1/08 (2006.01)
CPC H04L 5/0048 (2013.01) [H04L 1/08 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An apparatus for wireless communications at a user equipment (UE), comprising:
a transceiver;
one or more processors;
one or more memories coupled with the one or more processors; and
instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to:
receive, from a base station via the transceiver, a control message configuring the UE to transmit a plurality of repetitions of an uplink channel over a plurality of bundle intervals;
transmit, to the base station during a first transmission time interval of a first bundle interval of the plurality of bundle intervals, a first repetition of the uplink channel in accordance with a first demodulation reference signal density configuration; and
transmit, to the base station during a second transmission time interval of the first bundle interval, a second repetition of the uplink channel in accordance with a second demodulation reference signal density configuration, wherein the second demodulation reference signal density configuration indicates that a repetition of the uplink channel is to be transmitted without any demodulation reference signals or with a reduced quantity of demodulation reference signals as compared to the first demodulation reference signal density configuration.