Title:
QUANTIZED PRECODING IN MASSIVE MIMO SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/081848
Kind Code:
A1
Abstract:
Example embodiments of the present disclosure relate to a transmitter, method, apparatus and computer readable storage medium for quantized precoding in a massive multiple-input multiple-output (MIMO) system. In example embodiments, a transmitter determines a normalized factor for precoding of a plurality of signals intended for a plurality of receivers. The first device precodes the plurality of intended signals using the normalized factor by iteratively performing acts. The acts comprise determining, by using the normalized factor, a descending direction of a difference between the plurality of intended signals and corresponding signals received at the plurality of receivers, a descending rate of the difference being above a threshold rate in the descending direction, and determining a plurality of precoded signals based on the descending direction. Then, the first device quantizes the plurality of precoded signals for transmission by the transmitter to the plurality of receivers.
Inventors:
WANG LIJUN (CN)
MAO WEIQIANG (CN)
MAO WEIQIANG (CN)
Application Number:
PCT/CN2019/114495
Publication Date:
May 06, 2021
Filing Date:
October 30, 2019
Export Citation:
Assignee:
NOKIA SHANGHAI BELL CO LTD (CN)
NOKIA SOLUTIONS & NETWORKS OY (FI)
NOKIA SOLUTIONS & NETWORKS OY (FI)
International Classes:
H04B7/06; H04B7/0413
Domestic Patent References:
| WO2016120443A1 | 2016-08-04 |
Foreign References:
| US20150016314A1 | 2015-01-15 | |||
| EP3306828A1 | 2018-04-11 | |||
| CN107566021A | 2018-01-09 | |||
| CN108712196A | 2018-10-26 |
Other References:
LI YI ,WANG JUNXUAN: "Normalization Precoding Algorithm of Massive MU-MIMO System", VIDEO ENGINEERING, vol. 39, no. 19, 2 October 2015 (2015-10-02), pages 38 - 42, XP055924892, DOI: 10.16280/j.videoe.2015.19.010
See also references of EP 4052380A4
See also references of EP 4052380A4
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
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