US 11,750,326 B2
Data receiving method, data sending method, and communications apparatus
Ye Wu, Shanghai (CN); and Xiaoyan Bi, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jan. 13, 2021, as Appl. No. 17/147,837.
Application 17/147,837 is a continuation of application No. PCT/CN2019/097928, filed on Jul. 26, 2019.
Claims priority of application No. 201810844997.7 (CN), filed on Jul. 27, 2018.
Prior Publication US 2021/0135789 A1, May 6, 2021
Int. Cl. H04L 1/06 (2006.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01); H04W 72/23 (2023.01)
CPC H04L 1/0668 (2013.01) [H04L 5/0048 (2013.01); H04L 27/2613 (2013.01); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A communications apparatus, comprising:
a transceiver to
receive a demodulation reference signal (DMRS) mapped to a first DMRS port and a second DMRS port, wherein the DMRS occupies at least one first resource element (RE) pair, and in DMRS modulation symbols carried by each first RE pair, a modulation symbol mapped to the second DMRS port is obtained by performing Alamouti coding on a modulation symbol mapped to the first DMRS port, and
receive data mapped to a first data port and a second data port, wherein the data occupies at least one second RE pair, and in data modulation symbols carried by each second RE pair, a modulation symbol mapped to the second data port is obtained by performing Alamouti coding on a modulation symbol mapped to the first data port, wherein a plurality of REs in the first RE pair and the second RE pair occupy different subcarriers or occupy different symbols; and
a processor to demodulate the data based on the DMRS to obtain an estimate of the data.