US 12,407,459 B2
Method used for transmitting data, and terminal device
Wenhong Chen, Dongguan (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed on Dec. 8, 2021, as Appl. No. 17/545,863.
Application 17/545,863 is a continuation of application No. PCT/CN2019/097713, filed on Jul. 25, 2019.
Prior Publication US 2022/0103325 A1, Mar. 31, 2022
Int. Cl. H04J 13/16 (2011.01); H04L 5/00 (2006.01)
CPC H04L 5/0048 (2013.01) [H04J 13/16 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for transmitting data, comprising:
receiving, by a terminal device, downlink control information (DCI), wherein the DCI is used for scheduling physical downlink shared channel (PDSCH) transmission in multiple time domain resource units, and the DCI is further used for indicating K transmission configuration indicator (TCI) states, and K is a positive integer; and
determining, by the terminal device, from the K TCI states, a TCI state used for the PDSCH transmission in the multiple time domain resource units according to at least one of following information: the number of code division multiplexing (CDM) groups to which an adopted demodulation reference signal (DMRS) port belongs, a configuration of PDSCH repetition transmission scheme, a configuration scheme for the number of the multiple time domain resource units, and a physical resource configuration in one time domain resource unit of the multiple time domain resource units,
wherein K is a positive integer greater than 1, and determining, by the terminal device, from the K TCI states, the TCI state used for the PDSCH transmission in the multiple time domain resource units according to the number of CDM groups to which the adopted DMRS port belongs comprises:
for the adopted DMRS port belonging to a single CDM group, determining, by the terminal device, that PDSCH transmission in each of the multiple time domain resource units uses one of the K TCI states, at least a part of the multiple time domain resource units using different TCI states; and
for the adopted DMRS port belonging to more than one CDM groups, determining, by the terminal device, that one PDSCH transmission in each of the multiple time domain resource units uses multiple TCI states among the K TCI states;
wherein when it is determined that the one PDSCH transmission in each time domain resource unit uses multiple TCI states among the K TCI states, DMRS ports in different CDM groups use different TCI states among the multiple TCI states.