US 12,323,361 B2
Quasi-co-location information obtaining method, communication node and storage medium
Shujuan Zhang, Guangdong (CN); Zhaohua Lu, Guangdong (CN); Jianwei Wang, Guangdong (CN); Bo Gao, Guangdong (CN); and Huahua Xiao, Guangdong (CN)
Assigned to ZTE Corporation, Shenzhen (CN)
Appl. No. 17/759,033
Filed by ZTE Corporation, Guangdong (CN)
PCT Filed Jan. 18, 2021, PCT No. PCT/CN2021/072477
§ 371(c)(1), (2) Date Jul. 18, 2022,
PCT Pub. No. WO2021/143901, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 202010054515.5 (CN), filed on Jan. 17, 2020.
Prior Publication US 2023/0052764 A1, Feb. 16, 2023
Int. Cl. H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04L 5/0053 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0094 (2013.01); H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A method of obtaining quasi-co-location information, comprising:
acquiring, based on y quasi-co-location reference signal sets, x quasi-co-location reference signal sets of a first element, the first element comprising a physical downlink shared channel (PDSCH) or aperiodic channel state information reference signal (AP-CSI-RS);
wherein the y quasi-co-location reference signal sets comprise one of:
y quasi-co-location reference signal sets corresponding to a predetermined codepoint in a transmission configuration indicator (TCI) state mapping table, wherein the predetermined codepoint comprises the lowest codepoint among codepoints which corresponds to the maximum number of quasi-co-location reference signal sets in the TCI state mapping table; or
y quasi-co-location reference signal sets corresponding to a second element;
wherein a time interval between a downlink control channel that schedules the first element and the first element is less than a predetermined threshold; a time domain intersection between the second element and the first element is non-empty; the second element comprises at least one of an element having a scheduling interval greater than the predetermined threshold, a periodic element, a semi-persistent element and a control resource set (CORESET); the second element comprises at least one of channel and signal; and x is a positive integer greater than or equal to 1, and y is a positive integer greater than 1; and
wherein a quasi-co-location reference set comprises one or more quasi-co-location reference signals configured in a TCI state.