US 12,261,696 B2
Transmission mode indication method and device, base station, terminal
Xueyuan Gao, Beijing (CN); Xin Su, Beijing (CN); and Qiubin Gao, Beijing (CN)
Assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 17/641,428
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Jun. 28, 2020, PCT No. PCT/CN2020/098427
§ 371(c)(1), (2) Date Mar. 8, 2022,
PCT Pub. No. WO2021/063044, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 201910943913.X (CN), filed on Sep. 30, 2019.
Prior Publication US 2022/0337344 A1, Oct. 20, 2022
Int. Cl. H04W 4/00 (2018.01); H04L 1/08 (2006.01); H04L 5/00 (2006.01)
CPC H04L 1/08 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0053 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for indicating a transmission mode, comprising:
transmitting signaling to a user equipment (UE), wherein the signaling is configured for the UE to determine a transmission mode between the UE and a base station based on the signaling,
wherein the signaling carries indication information of a transmission configuration indicator (TCI) state, indication information of a redundancy version (RV), indication information of a demodulation reference signal (DMRS) port, and indication information indicating whether the number of retransmission is carried;
wherein the signaling further carries indication information of the transmission mode;
in case that the TCI state is a first preset value, the signaling further carries indication information indicating whether a physical downlink shared channel (PDSCH) transmitted by the UE adopts time division multiplexing (TDM) transmission mode; or, in case that the TCI state is a second preset value, the signaling carries indication information of spatial division multiplexing (SDM), or frequency division multiplexing (FDM), or intra-slot time division multiplexing TDM3, or inter-slot time division multiplexing TDM4 transmission mode used by a PDSCH configured by a higher layer signaling.