US 12,149,469 B2
Method and device for indicating PT-RS port for non-codebook-based uplink PUSCH transmission, and base station
Su Huang, Shanghai (CN)
Assigned to SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD., Shanghai (CN)
Filed by SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD., Shanghai (CN)
Filed on Mar. 7, 2022, as Appl. No. 17/688,388.
Application 17/688,388 is a continuation of application No. 16/968,509, granted, now 11,303,411, previously published as PCT/CN2019/080925, filed on Apr. 2, 2019.
Claims priority of application No. 201810290173.X (CN), filed on Apr. 3, 2018.
Prior Publication US 2022/0190985 A1, Jun. 16, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04L 5/0048 (2013.01) [H04L 5/0053 (2013.01); H04L 5/0091 (2013.01); H04W 72/23 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A method for indicating PT-RS port for non-codebook-based uplink PUSCH transmission, comprising:
receiving DCI from a base station, wherein the DCI carries indication bits which have a same number with bits of a PTRS-DMRS association in the DCI and apply to indicate an association relationship between PT-RS ports and DMRS ports, wherein the number of the bits of the PTRS-DMRS association in the DCI is determined by the base station based on a number of SRS resources, a number of the PT-RS ports, and a maximum uplink rank supported by a UE.