The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Oct. 27, 2020
Zte Corporation, Guangdong, CN;
Shujuan Zhang, Guangdong, CN;
Yijian Chen, Guangdong, CN;
Yu Ngok Li, Guangdong, CN;
Wenhao Liu, Guangdong, CN;
ZTE Corporation, Shenzhen, CN;
Abstract
A method and device for notifying and determining De Modulation Reference Signal (DMRS) ports or a mapping relationship is provided. The method includes: a sending end sends indication information to a receiving end in a Transmission Mode (TM), and the sending end indicates allocation information about DMRS ports or a mapping relationship according to the indication information, and the indication information includes at least one of the following: Radio Resource Control (RRC) signaling, physical layer New Data Indication (NDI) bit, and DMRS pilot scrambler configuration information n. A problem of influence on a performance of a Multi-User Multiple-Input Multiple-Output (MU-MIMO) system caused by lower channel estimation performance due to limited orthogonal DMRS ports for MU-MIMO transmission and high Multi-User Interference (MUI) after increment of a total number of MU-MIMO transmission layers is solved, thereby increasing orthogonal DMRS ports for MU-MIMO transmission on a basis of improving base station configuration flexibility during MU-MIMO transmission, effectively inhibiting MUI during channel estimation, and improving channel estimation performance.