Title:
COOPERATIVE PILOT INTERFERENCE SUPPRESSION METHOD, SYSTEM AND DEVICE FOR MASSIVE MIMO, AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/052481
Kind Code:
A1
Abstract:
The present application relates to a cooperative pilot interference suppression method, system and device for a massive MIMO, and a readable storage medium. A pilot frequency set is divided into two orthogonal subsets, and then, users of each cell are divided into two categories: the users in a pilot full multiplexing area and the users in a multi-cell cooperative pilot allocation area. The users in the pilot full multiplexing area multiplex pilots according to a certain priority. The users in the multi-cell cooperative pilot allocation area give priority to allocating the orthogonal pilots according to the minimized ratio of large-scale fading of a useful signal to large-scale fading of an interference signal. In the manner, the impact of pilot pollution on system capacity and bit error rate can be effectively reduced.
Inventors:
XU FANGMIN (CN)
YAN JUNRONG (CN)
LU YULONG (CN)
YAN JUNRONG (CN)
LU YULONG (CN)
Application Number:
PCT/CN2020/116286
Publication Date:
March 25, 2021
Filing Date:
September 18, 2020
Export Citation:
Assignee:
SUNWAVE COMM CO LTD (CN)
International Classes:
H04B7/024; H04B7/0413; H04L5/00
Foreign References:
| CN110808763A | 2020-02-18 | |||
| CN105634571A | 2016-06-01 | |||
| CN107547184A | 2018-01-05 | |||
| CN108880773A | 2018-11-23 | |||
| CN105991271A | 2016-10-05 | |||
| CN106452714A | 2017-02-22 | |||
| US20180351712A1 | 2018-12-06 |
Other References:
HUAWEI: "Add potential solution for CCO", 3GPP DRAFT; S5-194507 PCR 28.861 ADD OVERVIEW OF POTENTIAL SOLUTION FOR CCO, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG5, no. Sapporo, Japan; 20190625 - 20190628, 28 June 2019 (2019-06-28), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051750092
Attorney, Agent or Firm:
HANGZHOU HUAJIN LIANZHE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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