Title:
METHOD AND DEVICE FOR DETERMINING MAPPING RELATIONSHIP BETWEEN TCI STATE AND DMRS, AND METHOD AND DEVICE FOR CONFIGURING MAPPING RELATIONSHIP BETWEEN TCI STATE AND DMRS
Document Type and Number:
WIPO Patent Application WO/2021/057505
Kind Code:
A1
Abstract:
Embodiments of the present application provide a method and device for determining a mapping relationship between a TCI state and a DMRS, and a method and device for configuring a mapping relationship between a TCI state and a DMRS. The method for determining a mapping relationship between a TCI state and a DMRS comprises: receiving downlink control information or high-level parameter configuration information; and determining correspondences between N TCI states and M DMRS CDM groups or Y DMRS ports, wherein N, M, and Y are all integers greater than or equal to 1. By determining correspondences between TCI states and DMRS CDM groups or DMRS ports, the embodiments of the present application solve the problem of correspondences between multiple TCI states indicated by DCI received by a terminal and PDSCHs sent by multiple TRPs.
Inventors:
LI YAN (CN)
JIN JING (CN)
WANG FEI (CN)
ZHENG YI (CN)
WANG HANNING (CN)
WANG QIXING (CN)
JIN JING (CN)
WANG FEI (CN)
ZHENG YI (CN)
WANG HANNING (CN)
WANG QIXING (CN)
Application Number:
PCT/CN2020/114702
Publication Date:
April 01, 2021
Filing Date:
September 11, 2020
Export Citation:
Assignee:
CHINA MOBILE COMM CO LTD RES INST (CN)
CHINA MOBILE COMMUNICATIONS GROUP CO LTD (CN)
CHINA MOBILE COMMUNICATIONS GROUP CO LTD (CN)
International Classes:
H04L5/00
Domestic Patent References:
| WO2019135650A1 | 2019-07-11 |
Foreign References:
| CN110034853A | 2019-07-19 | |||
| US20190296876A1 | 2019-09-26 |
Other References:
LG ELECTRONICS: "Enhancements on Multi-TRP/Panel Transmission", 3GPP TSG RAN WG1 MEETING #97 R1-1906730, 17 May 2019 (2019-05-17), XP051708766
LG ELECTRONICS: "Discussion on DMRS Port Indication for NCJT", 3GPP TSG RAN WG1 #96BIS R1-1904214, 12 April 2019 (2019-04-12), XP051691352
LG ELECTRONICS: "Discussion on DMRS Port Indication for NCJT", 3GPP TSG RAN WG1 #97 R1-1906738, 17 May 2019 (2019-05-17), XP051708774
LG ELECTRONICS: "Discussion on DMRS Port Indication for NCJT", 3GPP TSG RAN WG1 #96BIS R1-1904214, 12 April 2019 (2019-04-12), XP051691352
LG ELECTRONICS: "Discussion on DMRS Port Indication for NCJT", 3GPP TSG RAN WG1 #97 R1-1906738, 17 May 2019 (2019-05-17), XP051708774
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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