PILOT FREQUENCY DISTRIBUTION METHOD IN LARGE-SCALE ANTANNA SYSTEM

WIPO Patent Application WO/2019/237793

A1

The present invention discloses a pilot frequency distribution method in a large-scale antenna system. A pilot frequency set is divided into three sub-sets, every two of which are intersected with each other, and then users of each cell are divided into cell center users and cell edge users. The cell center users use the intersection of three pilot frequency sub-sets. The cell edge users of each cell use the difference, the intersection and the union of the three pilot frequency sub-sets according to certain rules. During the design of a pilot frequency resource allocation scheme for implementing the large-scale antenna system, the three cells, every two of which are adjacent to each other, in the system can be taken as a cell cluster. The method of the present invention can be used to design a pilot frequency usage scheme of any one cell cluster, apply the same design scheme to the other cell clusters in the system, and then make adjustments according to the distribution of users and services of each cell cluster. The method can effectively reduce the impact of pilot frequency pollution on system capacity and bit error rate.

XU FANGMIN (CN)
YAN JUNRONG (CN)
CHU RULONG (CN)
OU XINGBAO (CN)

PCT/CN2019/080325

December 19, 2019

March 29, 2019

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SUNWAVE COMM CO LTD (CN)

H04L5/00

CN108880773A	2018-11-23
CN106452714A	2017-02-22
US20170295001A1	2017-10-12
CN105049166A	2015-11-11

HANGZHOU JIUZHOU PATENT LTD. (CN)

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