Title:
PRECODER DESIGN FOR MIMO TRANSMISSION USING ORBITAL ANGULAR MOMENTUM MODES
Document Type and Number:
WIPO Patent Application WO/2024/074027
Kind Code:
A1
Abstract:
Methods and apparatuses for OAM precoder are disclosed. In one embodiment, an OAM transmitter comprises TX antennas; and a processor, wherein, the processor is configured to: transmit, via the TX antennas, at least two OAM modes including OAM mode (l, p) and OAM mode (-l, p), where l is a positive integer and p is a non-negative integer, each OAM mode transmits one layer of signal in each utilized polarization; and apply a precoding matrix to the transmission of at least (l, p) and (-l, p) to mitigate the cross interference between (l, p) and (-l, p).
Inventors:
ZHU CHENXI (US)
LIU BINGCHAO (CN)
ZHANG YI (CN)
LIU BINGCHAO (CN)
ZHANG YI (CN)
Application Number:
PCT/CN2023/088397
Publication Date:
April 11, 2024
Filing Date:
April 14, 2023
Export Citation:
Assignee:
LENOVO BEIJING LTD (CN)
International Classes:
H04B7/0456
Domestic Patent References:
| WO2021133412A1 | 2021-07-01 | |||
| WO2022205411A1 | 2022-10-06 |
Foreign References:
| US20210021053A1 | 2021-01-21 | |||
| CN113131979A | 2021-07-16 | |||
| US20190334609A1 | 2019-10-31 |
Other References:
JIAN MENGNAN; CHEN YIJIAN; YU GUANGHUI: "Non-Coaxial OAM: Precoding Design, Misaligned Parameter Estimation and Capacity Compensation", IEEE ACCESS, IEEE, USA, vol. 9, 1 March 2021 (2021-03-01), USA , pages 37726 - 37738, XP011841393, DOI: 10.1109/ACCESS.2021.3062946
Attorney, Agent or Firm:
CHINA SINDA INTELLECTUAL PROPERTY LTD. (CN)
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