US 11,910,376 B2
Data transmission method, and terminal and network device
Xin Su, Beijing (CN); Runhua Chen, Beijing (CN); Qiubin Gao, Beijing (CN); Qiuping Huang, Beijing (CN); and Deshan Miao, Beijing (CN)
Assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 17/268,051
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Jul. 31, 2019, PCT No. PCT/CN2019/098618
§ 371(c)(1), (2) Date Feb. 11, 2021,
PCT Pub. No. WO2020/034842, PCT Pub. Date Feb. 20, 2020.
Claims priority of application No. 201810942469.5 (CN), filed on Aug. 17, 2018.
Prior Publication US 2021/0321431 A1, Oct. 14, 2021
Int. Cl. H04W 72/12 (2023.01); H04W 72/1263 (2023.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04W 8/24 (2009.01)
CPC H04W 72/1263 (2013.01) [H04B 7/0486 (2013.01); H04B 7/0608 (2013.01); H04W 8/24 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A data transmission method, applied to a terminal provided with at least two antenna panels for uplink transmission, comprising:
acquiring a target uplink transmission manner corresponding to a transmission capability of the terminal;
transmitting a data layer of uplink data via at least one antenna panel of the terminal according to a correspondence between data layers of the uplink data and the antenna panels of the terminal in the target uplink transmission manner,
wherein the transmission capability of the terminal comprises:
a scheduling indication manner supported by the terminal,
wherein the scheduling indication manner supported by the terminal comprises at least one of following scheduling indication manners:
a first scheduling indication manner, referring to that target information is indicated for each antenna panel of the terminal;
a second scheduling indication manner, referring to that the target information and an amplitude and/or phase weighting factor between any two antenna panels of the terminal are indicated for each antenna panel of the terminal;
a third scheduling indication manner, referring to that the target information is indicated jointly for all antenna panels provided for the terminal;
wherein the target information comprises transmit precoding matrix index (TPMI) and/or transmit rank index (TRI),
wherein the acquiring the target uplink transmission manner corresponding to the transmission capability of the terminal comprises:
selecting, according to the transmission capability of the terminal, at least one uplink transmission manner among a plurality of preconfigured uplink transmission manners as the target uplink transmission manner, wherein correspondences between data layers of the uplink data and the antenna panels of the terminal in different uplink transmission manners are different from each other;
wherein prior to the selecting, according to the transmission capability of the terminal, at least one uplink transmission manner among a plurality of preconfigured uplink transmission manners as the target uplink transmission manner, the method further comprises:
selecting, according to the transmission capability of the terminal, one scheduling indication manner among the at least two scheduling indication manners supported by the terminal as a scheduling indication manner of the terminal; or,
reporting the transmission capability of the terminal to a network device, acquiring one scheduling indication manner selected by the network device among the at least two scheduling indication manners supported by the terminal according to the transmission capability of the terminal, and using the one scheduling indication manner as a scheduling indication manner of the terminal; or,
reporting the transmission capability of the terminal to a network device, acquiring at least one recommended scheduling indication manner selected by the network device among the at least two scheduling indication manners supported by the terminal according to the transmission capability of the terminal, selecting one scheduling indication manner among the at least one recommended scheduling indication manner, and using the one scheduling indication manner as a scheduling indication manner of the terminal; or,
identifying, according to the transmission capability of the terminal, at least one recommended scheduling indication manner among the at least two scheduling indication manners supported by the terminal, transmitting the at least one recommended scheduling indication manner to a network device, and using a scheduling indication manner selected by the network device among the at least one recommended scheduling indication manner as a scheduling indication manner of the terminal,
wherein the plurality of preconfigured uplink transmission manners comprises: a first uplink transmission manner, a second uplink transmission manner and a third uplink transmission manner;
wherein the first uplink transmission manner refers to that one antenna panel is selected among at least two antenna panels provided for the terminal, and all data layers of the uplink data are transmitted on the selected antenna panel;
the second uplink transmission manner refers to that all data layers of the uplink data are transmitted on each antenna panel of the terminal;
the third uplink transmission manner refers to that all data layers of the uplink data are divided into N groups, and each group of data layers is transmitted on one antenna panel, wherein there is a one-to-one correspondence between the groups and the antenna panels, N is a quantity of the antenna panels of the terminal, and N is a positive integer greater than 1,
wherein the selecting, according to the transmission capability of the terminal, at least one uplink transmission manner among a plurality of preconfigured uplink transmission manners as the target uplink transmission manner comprises:
determining that the target uplink transmission manner is the first uplink transmission manner, in a case that the quantity of antenna panels supported by the terminal that are capable of simultaneous uplink transmission is 1 or the quantity of uplink resource sets supported by the terminal that are available for beam management is 1;
determining that the target uplink transmission manner is the first uplink transmission manner or the third uplink transmission manner, in a case that the quantity of antenna panels supported by the terminal that are capable of simultaneous uplink transmission or the quantity of uplink resource sets supported by the terminal that are available for beam management is M, and the quantity of antenna panels supported by the terminal that are capable of coherent transmission is 1;
determining that the target uplink transmission manner is the first uplink transmission manner or the second uplink transmission manner, in a case that the quantity of antenna panels supported by the terminal that are capable of simultaneous uplink transmission or the quantity of uplink resource sets supported by the terminal that are available for beam management is M, and the quantity of antenna panels supported by the terminal that are capable of coherent transmission is M;
determining that the target uplink transmission manner is the first uplink transmission manner or the third uplink transmission manner, in a case that the quantity of antenna panels supported by the terminal that are capable of simultaneous uplink transmission or the quantity of uplink resource sets supported by the terminal that are available for beam management is M, and the scheduling indication manner supported by the terminal is the first scheduling indication manner;
determining that the target uplink transmission manner is the first uplink transmission manner or the second uplink transmission manner, in a case that the quantity of antenna panels supported by the terminal that are capable of simultaneous uplink transmission or the quantity of uplink resource sets supported by the terminal that are available for beam management is M, and the scheduling indication manner supported by the terminal is the second scheduling indication manner or the third scheduling indication manner;
wherein M is a positive integer greater than 1.