US 12,408,161 B2
Information indication method and apparatus in a multi-beam transmission scenario
Di Zhang, Shenzhen (CN); and Kunpeng Liu, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on May 24, 2024, as Appl. No. 18/674,559.
Application 18/674,559 is a continuation of application No. 17/403,437, filed on Aug. 16, 2021, abandoned.
Application 17/403,437 is a continuation of application No. PCT/CN2020/075317, filed on Feb. 14, 2020.
Claims priority of application No. 201910118164.7 (CN), filed on Feb. 15, 2019; and application No. 201911072492.4 (CN), filed on Nov. 5, 2019.
Prior Publication US 2024/0314767 A1, Sep. 19, 2024
Int. Cl. H04W 72/04 (2023.01); H04B 7/08 (2006.01); H04L 1/1607 (2023.01); H04W 72/1263 (2023.01); H04W 80/02 (2009.01)
CPC H04W 72/1263 (2013.01) [H04B 7/088 (2013.01); H04L 1/1614 (2013.01); H04W 80/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An information indication method, comprising:
receiving, by a terminal device, first indication information, wherein the first indication information indicates A transmission configuration indicator (TCI) states, where A is a positive integer greater than or equal to two;
receiving, by the terminal device, second indication information, wherein the second indication information indicates a first codepoint, and the first codepoint is one of P codepoint(s), where P is a positive integer;
determining, by the terminal device, according to a preset rule and based on the first codepoint, at least one TCI state corresponding to the first codepoint, wherein the preset rule comprises a rule for mapping the A TCI states to the P codepoint(s), and at least one codepoint in the P codepoint(s) corresponds to at least two TCI states in the A TCI states; and
receiving, by the terminal device, downlink information based on the at least one TCI state corresponding to the first codepoint:
wherein the A TCI states comprise K1 first TCI states and K2 second TCI states, where K1 and K2 are positive integers, and K1+K2≤A;
wherein the preset rule comprises a first TCI state mapping rule and a second TCI state mapping rule, wherein the first TCI state mapping rule comprises a rule for mapping the K1 first TCI states to L1 codepoints in the P codepoint(s), and wherein the second TCI state mapping rule comprises a rule for mapping the K2 second TCI states to L2 codepoints in the P codepoint(s), where L1 and L2 are positive integers:
wherein K1 and L1 are greater than or equal to 2;
wherein the first TCI state mapping rule comprises: the K1 first TCI states arranged in a first order are sequentially mapped to K1 codepoints in the L1 codepoints arranged in a second order, where K1≤L1;
wherein the first order is indicated by the first indication information:
wherein the second order is an ascending order of codepoint values;
wherein K2 and L2 are greater than or equal to 2;
wherein the second TCI state mapping rule comprises: the K2 second TCI states arranged in a third order are sequentially mapped to K2 codepoints in the L2 codepoints arranged in a fourth order, where K2≤L2;
wherein the third order is indicated by the first indication information; and
wherein the fourth order is an ascending order of codepoint values.