US 11,871,425 B2
Communication method, apparatus, and system
Xu Zhang, Beijing (CN); and Jianguo Wang, Shanghai (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jun. 21, 2021, as Appl. No. 17/352,916.
Application 17/352,916 is a continuation of application No. 16/992,981, filed on Aug. 13, 2020, granted, now 11,057,878.
Application 16/992,981 is a continuation of application No. PCT/CN2019/073353, filed on Jan. 28, 2019.
Claims priority of application No. 201810150873.9 (CN), filed on Feb. 13, 2018.
Prior Publication US 2021/0314928 A1, Oct. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/04 (2023.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01); H04W 48/12 (2009.01); H04L 1/00 (2006.01)
CPC H04W 72/23 (2023.01) [H04L 1/0061 (2013.01); H04L 5/0048 (2013.01); H04W 48/12 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method, comprising:
sending, by a network device, a physical downlink control channel (PDCCH) carrying downlink control information (DCI), wherein the DCI comprises indication information, and the indication information indicates that a type of system information is either system information type1 (SIB1) or a system information (SI) message other than SIB1; and
sending, by the network device, the system information and a demodulation reference signal (DMRS) of the system information, wherein a frequency domain reference point of the DMRS is one of at least two frequency domain reference points that are used to determine DMRSs for the SIB1 and the SI message, and the frequency domain reference point used to determine the DMRS of the SIB1 and the frequency domain reference point used to determine the DMRS of the SI message are different.