US 12,445,262 B2
Configuration information indication method and apparatus
Chunxu Jiao, Shanghai (CN); Chao Li, Beijing (CN); Zhengzheng Xiang, Shanghai (CN); and Lei Lu, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Oct. 4, 2022, as Appl. No. 17/959,340.
Application 17/959,340 is a continuation of application No. PCT/CN2021/085926, filed on Apr. 8, 2021.
Claims priority of application No. 202010270650.3 (CN), filed on Apr. 8, 2020; and application No. 202010414679.4 (CN), filed on May 15, 2020.
Prior Publication US 2023/0042779 A1, Feb. 9, 2023
Int. Cl. H04L 5/14 (2006.01); H04L 27/26 (2006.01); H04W 56/00 (2009.01)
CPC H04L 5/1469 (2013.01) [H04L 27/26025 (2021.01); H04W 56/001 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A configuration information indication method, comprising:
receiving an uplink-downlink time division duplex (TDD) configuration from a network device, wherein the uplink-downlink TDD configuration includes first periodicity information that includes period time of a first TDD pattern and period time of a second TDD pattern; and
determining, based on the first periodicity information and a first subcarrier spacing (SCS), uplink (UL) transmission time corresponding to the first periodicity information, wherein the first SCS and the first periodicity information meet a first mapping relationship; the first mapping relationship is shown in the following table:
 
 
 
 
 First period Second period
 
 
 Number P(ms) P2 (ms) μrefSL
 
 
 
 
 0 0.5 0.5 3
 
 1 0.625 0.625 3
 
 2 1 1 3
 
 3 0.5 2 3
 
 4 1.25 1.25 3
 
 5 2 0.5 3
 
 6 1 3 2
 
 7 2 2 2
 
 8 3 1 2
 
 9 1 4 2
 
 10 2 3 2
 
 11 2.5 2.5 2
 
 12 3 2 2
 
 13 4 1 2
 
 14 5 5 1
 
 15 10 10 0
 
 
the first period P is the period time of the first TDD pattern in a unit of ms, the second period P2 is the period time of the second TDD pattern in the unit of ms, the number is an index of a period combination of the first period P and the second period P2, and the first SCS is 15 KHz×2μrefSL;
wherein: a UL slot quantity corresponding to the period time of the first TDD pattern is calculated according to a function relationship formula expressed as:
μ1=custom characterμslots·2μrefSL/2μrefcustom character+custom characterμsym·2μrefSL/2μref/14custom character,
wherein: μ1 represents the UL slot quantity corresponding to the period time of the first TDD pattern;
custom charactercustom character represents rounding down; μslots represents a reference UL slot quantity that corresponds to the period time of the first TDD pattern and that is included in the uplink-downlink TDD configuration;
μsym represents a reference UL symbol quantity that corresponds to the period time of the first TDD pattern and that is included in the uplink-downlink TDD configuration; and
2μrefSL/2μref is the ratio of the first SCS to a reference SCS included in the uplink-downlink TDD configuration; and
a UL slot quantity corresponding to the period time of the second TDD pattern is calculated according to a function relationship formula expressed as:
μ2=custom characterμslots,2·2μrefSL/2μrefcustom character+custom characterμsym,2·2μrefSL/2μref14custom character,
wherein: μ2 represents the UL slot quantity corresponding to the period time of the second TDD pattern;
custom charactercustom character represents rounding down, μslots2 represents a reference UL slot quantity that corresponds to a period information of the second TDD pattern and that is included in the uplink-downlink TDD configuration;
μsym2 represents a reference UL symbol quantity that corresponds to the period information of the second TDD pattern and that is included in the uplink-downlink TDD configuration;
and 2μrefSL/2μref is the ratio of the first SCS to a reference SCS included in the uplink-downlink TDD configuration.