Title:
MULTI-USER UPLINK AND DOWNLINK BEAM ALIGNMENT METHOD FOR ASYMMETRIC MILLIMETER-WAVE MASSIVE MIMO
Document Type and Number:
WIPO Patent Application WO/2023/040231
Kind Code:
A1
Abstract:
Provided in the present application are a multi-user uplink and downlink beam alignment method and apparatus for asymmetric millimeter-wave massive MIMO, and a medium. The method comprises: constructing fully digital multi-directional beams for performing detection in a plurality of directions; performing multiple rounds of downlink beam training from a base station end to a user end; controlling the use end to perform a beam decision according to received signals, so as to determine a target downlink transmission-receiving beam pair that has the maximum received power; performing data processing on received signals, so as to generate training data for predicting an uplink transmission narrow beam, and training a preset neural network; performing online real-time signal detection on the basis of trained network parameters and the received signals, and predicting a target uplink transmission narrow beam; and according to the number, which is fed back, of a target downlink transmission narrow beam, broadening the target downlink transmission narrow beam to a target uplink receiving beam of the base station end. By means of the method, the quick alignment of multi-user uplink and downlink beams is realized with less training overheads and a higher reliability, thereby simplifying a training process.
Inventors:
LIU YONGCHENG (CN)
LI MIN (CN)
ZHAO MINJIAN (CN)
LI LIYAN (CN)
ZHANG JIAYU (CN)
LI MIN (CN)
ZHAO MINJIAN (CN)
LI LIYAN (CN)
ZHANG JIAYU (CN)
Application Number:
PCT/CN2022/082606
Publication Date:
March 23, 2023
Filing Date:
March 23, 2022
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
H04B7/0456; H04B7/06
Foreign References:
| CN113890580A | 2022-01-04 | |||
| CN106911371A | 2017-06-30 | |||
| CN113348631A | 2021-09-03 | |||
| CN111245493A | 2020-06-05 | |||
| CN111917446A | 2020-11-10 | |||
| US20190312623A1 | 2019-10-10 |
Other References:
MA WENYAN, QI CHENHAO: "Deep learning based beam selection for uplink millimeter wave communications", JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY (NATURAL SCIENCE EDITION), CN, vol. 42, no. 12, 28 December 2019 (2019-12-28), CN , pages 1644 - 1648, XP093048325, ISSN: 1003-5060, DOI: 10.3969/j.issn.1003-5060.2019.12.011
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
Download PDF: