US 12,309,791 B2
Method and device for transmitting uplink signal
Wenhong Chen, Dongguan (CN); and Zhihua Shi, Dongguan (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed on Jan. 14, 2021, as Appl. No. 17/149,645.
Application 17/149,645 is a continuation of application No. PCT/CN2018/103366, filed on Aug. 30, 2018.
Prior Publication US 2021/0136739 A1, May 6, 2021
Int. Cl. H04W 72/23 (2023.01); H04L 5/00 (2006.01); H04W 56/00 (2009.01)
CPC H04W 72/23 (2023.01) [H04L 5/0048 (2013.01); H04L 5/0055 (2013.01); H04W 56/001 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for transmitting an uplink signal, comprising:
sending, by a terminal device to a network device, capability information of the terminal device, wherein the capability information of the terminal device indicates whether a beam correspondence between a beam used for receiving a downlink signal and a beam used for transmitting an uplink signal corresponding to the downlink signal is supported by the terminal device, and the capability information is used for the network device to determine whether to configure spatial relationship information of the uplink signal for the terminal device, when the capability information indicates that the beam correspondence is supported by the terminal device, no spatial relationship information of the uplink signal is configured by the network device, and when the capability information indicates that the beam correspondence is not supported by the terminal device, the spatial relationship information of the uplink signal is configured by the network device;
receiving, by the terminal device, the downlink signal transmitted by the network device;
when the beam correspondence is not supported by the terminal device, receiving, by the terminal device, the spatial relationship information of the uplink signal configured by the network device, and transmitting, by the terminal device, the uplink signal to the network device according to the spatial relationship information configured by the network device; and
when the beam correspondence is supported by the terminal device, determining, by the terminal device, at least one Transmission Configuration Indicator (TCI) state of the downlink signal according to MAC signaling for activating the downlink signal, determining, by the terminal device, the spatial relationship information of the uplink signal corresponding to the downlink signal according to the at least one TCI state of the downlink signal, and transmitting, by the terminal device, the uplink signal to the network device according to the determined spatial relationship information, wherein the TCI state is used by the terminal device to determine a spatial reception parameter of the downlink signal;
wherein the downlink signal is a Physical Downlink Shared Channel (PDSCH), and the uplink signal corresponding to the downlink signal is of a Physical Uplink Control Channel (PUCCH), and the PUCCH is used to carry acknowledgment/negative-acknowledgment (ACK/NACK) information of the PDSCH,
wherein the at least one TCI state comprises a Synchronization Signal Block (SSB) index, and the SSB index is used by the terminal device to determine the spatial reception parameter of the downlink signal, and
wherein in a case where the terminal device receives a first PDSCH at a first time and a second PDSCH at a second time later than the first time, the terminal transmits the ACK/NACK feedback information of the first PDSCH and the second PDSCH in one PUCCH, and determines the spatial relationship information of the one PUCCH according to the at least one TCI state of the second PDSCH.