US 12,127,190 B2
Systems and methods for non-codebook based multi-TRP PUSCH
Siva Muruganathan, Stittsville (CA); and Shiwei Gao, Nepean (CA)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/552,850
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Apr. 4, 2022, PCT No. PCT/IB2022/053114
§ 371(c)(1), (2) Date Sep. 27, 2023,
PCT Pub. No. WO2022/208482, PCT Pub. Date Oct. 6, 2022.
Claims priority of provisional application 63/170,001, filed on Apr. 2, 2021.
Prior Publication US 2024/0098740 A1, Mar. 21, 2024
Int. Cl. H04L 5/00 (2006.01); H04L 1/08 (2006.01); H04W 72/1268 (2023.01); H04W 72/232 (2023.01)
CPC H04W 72/1268 (2013.01) [H04L 1/08 (2013.01); H04L 5/0051 (2013.01); H04W 72/232 (2023.01)] 28 Claims
OG exemplary drawing
 
1. A method performed by a wireless device for non-codebook based Physical Uplink Shared Channel, PUSCH, transmission, the method comprising:
receiving a configuration of a first or second Uplink, UL, Phase-Tracking Reference Signal, PT-RS, port index per Sounding Reference Signal, SRS, resource among a plurality of SRS resources configured in two SRS resource sets for a non-codebook based PUSCH;
receiving an indication of at least one of: a first set of SRS Resource Indicators, SRIs, indicating SRS resources from a first SRS resource set; and a second set of SRIs indicating SRS resources from a second SRS resource set;
determining at least one of:
a first number of UL PT-RS ports to be transmitted according to SRS resources indicated in the first set of SRIs; and
a second number of UL PT-RS ports to be transmitted according to SRS resources indicated in the second set of SRIs; and
transmitting the determined number of UL PT-RS ports along with a plurality of PUSCH repetitions.