US 12,143,320 B2
Client device and serving device for associating PTRS antenna ports to DMRS antenna ports
Wenquan Hu, Shenzhen (CN); Min Zhang, Shenzhen (CN); Bengt Lindoff, Lund (SE); Thorsten Schier, Lund (SE); Han Zhou, Shanghai (CN); and Xiaoyan Bi, Ottawa (CA)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Feb. 11, 2022, as Appl. No. 17/669,801.
Application 17/669,801 is a continuation of application No. PCT/EP2019/071843, filed on Aug. 14, 2019.
Prior Publication US 2022/0166570 A1, May 26, 2022
Int. Cl. H04L 5/00 (2006.01); H04J 13/00 (2011.01); H04W 72/20 (2023.01)
CPC H04L 5/0026 (2013.01) [H04J 13/0003 (2013.01); H04L 5/0048 (2013.01); H04L 5/0092 (2013.01); H04W 72/20 (2023.01)] 25 Claims
OG exemplary drawing
 
1. A client device for a wireless communication system, comprising:
a processor; and
a non-transitory computer readable medium storing a program for execution by the processor, the program including instructions to:
obtain configuration information related to a set of phase tracking reference signal (PTRS) antenna ports;
obtain control information indicating at least one of one or more codewords, a set of demodulation reference signal (DMRS) antenna ports assigned to the one or more codewords, or transmission configuration indication (TCI) information indicating one or more TCI states; and
determine an association between the set of PTRS antenna ports and the set of DMRS antenna ports based on the configuration information related to the set of PTRS antenna ports and the control information, wherein the association between the set of PTRS antenna ports and the set of DMRS antenna ports indicates that a DMRS antenna port of the set of DMRS antenna ports associated with a PTRS antenna port is used for transmission of a PTRS, wherein in response to only one PTRS port and one codeword being scheduled, the PTRS antenna port is associated with a lowest indexed DMRS antenna port of the set of DMRS antenna ports, wherein in response to only one PTRS port and two codewords being scheduled, and further in response to modulation and coding scheme (MCS) indices of the two codewords being different, the PTRS antenna port is associated with the lowest indexed DMRS antenna port among the set of DMRS antenna ports assigned for the codeword with a higher MCS index, and wherein in response to only one PTRS port and two codewords being scheduled, and further in response to the MCS indices of the two codewords being same, the PTRS antenna port is associated with the lowest indexed DMRS antenna port assigned for codeword 0.