US 12,328,270 B2
Reference signal sending method, reference signal receiving method, network device, and terminal device
Lu Wu, Shenzhen (CN); and Yong Liu, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd, Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Aug. 21, 2023, as Appl. No. 18/453,066.
Application 18/453,066 is a continuation of application No. 17/721,138, filed on Apr. 14, 2022, granted, now 11,784,765.
Application 17/721,138 is a continuation of application No. 16/900,516, filed on Jun. 12, 2020, granted, now 11,329,782, issued on May 10, 2022.
Application 16/900,516 is a continuation of application No. 16/525,130, filed on Jul. 29, 2019, granted, now 10,700,834, issued on Jun. 30, 2020.
Application 16/525,130 is a continuation of application No. PCT/CN2018/084044, filed on Apr. 23, 2018.
Claims priority of application No. 201710295299.1 (CN), filed on Apr. 28, 2017.
Prior Publication US 2024/0056243 A1, Feb. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 4/00 (2018.01); H04J 11/00 (2006.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 76/27 (2018.01)
CPC H04L 5/0021 (2013.01) [H04J 11/0023 (2013.01); H04L 5/0048 (2013.01); H04L 5/0073 (2013.01); H04L 27/26 (2013.01); H04L 27/2613 (2013.01); H04W 76/27 (2018.02)] 24 Claims
OG exemplary drawing
 
1. A reference signal sending method, comprising:
determining, by a network device, a plurality of resource elements (REs) for carrying a first channel state information reference signal (CSI-RS) of one CSI-RS port,
wherein the plurality of REs is within a plurality of resources, and
wherein in each resource,
values of the first CSI-RS carried on at least two REs in one symbol are from one first pilot sequence,
the values of the first CSI-RS carried on the at least two REs in the symbol are associated with frequency positions of each of the at least two REs, and
the values of the first CSI-RS carried on the at least two REs in the symbol are multiplexed by a first multiplex code; and
sending, by the network device, the first CSI-RS to a terminal device by using the plurality of RES.