US 12,335,945 B2
Communication method and apparatus
Zhe Liu, Shanghai (CN); Hao Tang, Ottawa (CA); and Jinlin Peng, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Feb. 15, 2022, as Appl. No. 17/672,037.
Application 17/672,037 is a continuation of application No. PCT/CN2020/109368, filed on Aug. 14, 2020.
Claims priority of application No. 201910760916.X (CN), filed on Aug. 16, 2019.
Prior Publication US 2022/0174710 A1, Jun. 2, 2022
Int. Cl. H04W 72/1273 (2023.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 72/0446 (2023.01)
CPC H04W 72/1273 (2013.01) [H04L 5/0051 (2013.01); H04L 27/26025 (2021.01); H04W 72/0446 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving first indication information from a network device, wherein the first indication information indicates a time domain position of a demodulation reference signal (DMRS) set on a physical downlink shared channel (PDSCH), and wherein the DMRS set comprises N DMRSs, and wherein N is a positive integer; and
receiving, on the PDSCH based on the first indication information, data sent by the network device;
wherein:
when N is 2, when the DMRS set comprises a first DMRS and a second DMRS, and when a length of the first DMRS and a length of the second DMRS in time domain each are one symbol, the first indication information indicates:
a PDSCH mapping type being a type B, L being 10, l0 being 0, and Δl1 being 7; or
when N is 3, when the DMRS set comprises a first DMRS, a second DMRS, and a third DMRS, and when a length of the first DMRS, a length of the second DMRS, and a length of the third DMRS in time domain each are one symbol, the first indication information indicates
a PDSCH mapping type being a type B, L being 9, l0 being 0, Δl1 being 4, and Δl2 being 7; or
a PDSCH mapping type being a type B, L being 10, l0 being 0, Δl1 being 4, and Δl2 being 7; and
wherein L indicates a total quantity of symbols of the PDSCH, wherein l0 indicates a position of a start symbol of the first DMRS on the PDSCH, wherein Δl1 indicates a quantity of symbols between a start symbol of the PDSCH and a start symbol of the second DMRS on the PDSCH, and wherein Δl2 indicates a quantity of symbols between the start symbol of the PDSCH and a start symbol of the third DMRS on the PDSCH.