US 11,943,726 B2
Demodulation reference signal transmission method and apparatus
Jin Liu, Shenzhen (CN); Pu Yuan, Shenzhen (CN); Jun Luo, Kista (SE); Zhengzheng Xiang, Shanghai (CN); and Lu Rong, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on May 10, 2021, as Appl. No. 17/316,335.
Application 17/316,335 is a continuation of application No. 16/141,099, filed on Sep. 25, 2018, granted, now 11,006,377.
Application 16/141,099 is a continuation of application No. PCT/CN2018/085707, filed on May 4, 2018.
Claims priority of application No. 201710313724.5 (CN), filed on May 5, 2017.
Prior Publication US 2021/0266850 A1, Aug. 26, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 56/00 (2009.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 72/30 (2023.01); H04W 72/04 (2023.01)
CPC H04W 56/001 (2013.01) [H04L 5/00 (2013.01); H04L 5/0007 (2013.01); H04L 5/0048 (2013.01); H04L 27/26 (2013.01); H04W 72/30 (2023.01); H04W 72/04 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method comprising:
mapping a demodulation reference signal (DMRS) to a plurality of resource elements (REs) comprised in a time-frequency resource, wherein the time-frequency resource includes symbols where a physical broadcast channel (PBCH) or a secondary synchronization signal (SSS) is mapped, and a frequency resource of REs on a symbol where the SSS and the DMRS are mapped comprises a first frequency area where subcarriers of the DMRS are located and a second frequency area where subcarriers of the SSS are located, the first frequency area being different from the second frequency area, and wherein the PBCH, the SSS and a primary synchronization signal (PSS) are comprised in a synchronization signal block.