Title:
PRECODING METHOD AND DEVICE/STORAGE MEDIUM/APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/108435
Kind Code:
A1
Abstract:
The present disclosure relates to the technical field of communications, and provides a precoding method and device/storage medium/apparatus. The method comprises: transmitting a reference signal for channel estimation to a receiving end; receiving precoding information sent by the receiving end, the precoding information comprising at least one of at least one modality combination index, a precoding matrix indicator (PMI), and the number of modalities, and the number of modalities being used for indicating the maximum number of orbital angular momentum (OAM) modalities that can be transmitted under the current channel condition; determining transmission modality information on the basis of the precoding information and transmitting a precoding weight vector; and indicating the transmission modality information to the receiving end. The method provided by the present disclosure can effectively solve the problems of received signal energy loss and inter-modal interference in a non-aligned scenario of transmitting and receiving ends, and has high quantization accuracy and relatively small pilot frequency overhead and feedback overhead.
Inventors:
CHI LIANGANG (CN)
DUAN GAOMING (CN)
DUAN GAOMING (CN)
Application Number:
PCT/CN2021/138019
Publication Date:
June 22, 2023
Filing Date:
December 14, 2021
Export Citation:
Assignee:
BEIJING XIAOMI MOBILE SOFTWARE CO LTD (CN)
International Classes:
H04B7/0456
Foreign References:
| CN112803975A | 2021-05-14 | |||
| CN113131979A | 2021-07-16 | |||
| US11177990B1 | 2021-11-16 | |||
| US20200296599A1 | 2020-09-17 |
Attorney, Agent or Firm:
FASHENG INTELLECTUAL PROPERTY COMPANY, LTD. (CN)
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