US 11,990,961 B2
Method for determining antenna port and communication device
Xin Su, Beijing (CN); Qiubin Gao, Beijing (CN); and Xueyuan Gao, Beijing (CN)
Assigned to Datang Mobile Communications Equipment Co., Ltd., Beijing (CN)
Appl. No. 17/620,923
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Jun. 17, 2020, PCT No. PCT/CN2020/096508
§ 371(c)(1), (2) Date Dec. 20, 2021,
PCT Pub. No. WO2021/004242, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 201910606396.7 (CN), filed on Jul. 5, 2019.
Prior Publication US 2022/0352939 A1, Nov. 3, 2022
Int. Cl. H04B 7/0413 (2017.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04B 7/0617 (2013.01) [H04B 7/0413 (2013.01); H04B 7/063 (2013.01); H04L 5/0048 (2013.01); H04L 5/0094 (2013.01); H04W 72/23 (2023.01)] 15 Claims
OG exemplary drawing
 
1. A method for determining an antenna port, performed by a communication device, comprising:
transmitting control information, the control information comprising a first information field and a second information field, wherein the first information field is used to indicate antenna port information of a plurality of antenna port sets, and the second information field is used to indicate Demodulation Reference Signal (DMRS) antenna ports, and the DMRS antenna ports comprise the antenna ports of each antenna port set in the plurality of antenna port sets;
determining an antenna port set corresponding to each Transmission Configuration Indication (TCI) state in a plurality of TCI states, and determining antenna ports of each antenna port set in the plurality of antenna port sets in accordance with the first information field, wherein there is a correspondence between the TCI states and the antenna port sets; and
transceiving, by the communication device, data over the determined antenna ports of each antenna port set in the plurality of antenna port sets,
wherein the first information field comprises a first value, and the second information field comprises a second value;
the determining the antenna ports in the plurality of antenna port sets in accordance with the first information field comprises determining a first DMRS antenna port indicated by the second value in a second configuration, and determining the antenna ports in the plurality of antenna port sets indicated by the first value in a first configuration in the case that a DMRS antenna port is the first DMRS antenna port;
the second configuration is configured to configure a plurality of values, and a DMRS antenna port corresponding to each value; and
the first configuration is configured to configure at least one value, and antenna ports in the plurality of antenna port sets corresponding to each value in the case of at least one DMRS antenna port; or
the first configuration is configured to configure at least one value, antenna ports in the plurality of antenna port sets corresponding to each value in the case of at least one DMRS antenna port, and a correspondence between the TCI states and the antenna port sets corresponding to each value in the case of at least one DMRS antenna port; or
the first configuration is configured to configure at least one value, and the quantity of antenna ports in the plurality of antenna port sets corresponding to each value in the case of at least one DMRS antenna port; or
the first configuration is configured to configure at least one value, the quantity of ports in each antenna port set corresponding to each value in the case of at least one DMRS antenna port, and a correspondence between the TCI states and the antenna port sets corresponding to each value in the case of at least one DMRS antenna port.