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DMRS pilot scrambling code configuration information distribution method, device, equipment and storage medium

A technology for configuring information and an allocation method, applied in the field of communication, can solve problems affecting terminal demodulation performance, DMRS interference, etc., and achieve the effect of reducing interference and improving demodulation performance

Active Publication Date: 2022-05-31
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, under the FDD system, the M-MIMO technical strategy has a problem for TM9 users: in the case of space division multiplexing, if N SCID If the allocation is improper, there may be interference in the DMRS of adjacent beams, which will affect the demodulation performance of the terminal

Method used

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  • DMRS pilot scrambling code configuration information distribution method, device, equipment and storage medium
  • DMRS pilot scrambling code configuration information distribution method, device, equipment and storage medium
  • DMRS pilot scrambling code configuration information distribution method, device, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In step S101, a null packet of the same time-frequency resource of the space division multiplexing is obtained.

[0033] According to the activated beam of the terminal, determine the empty grouping of the same time-frequency resource by space division multiplexing.

[0038] Step S102, sorting the terminals according to the directions of arrival of the terminals in the null group.

[0040] Judging whether the angular range of the directions of arrival of each terminal is stored;

[0048] In this embodiment, the number of codewords of the terminal is sent by the terminal to the apparatus / equipment. the package

[0058]

Embodiment 2

[0065] Wherein, the direction of arrival angle ranges of the four terminals A, B, C, D are respectively [-10, 10], [-40, 10], [5, 20],

Embodiment 3

[0075] Wherein, the direction of arrival angle ranges of the two terminals A and B are respectively [10, 20], [‑40, 0]. Then in descending order

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Abstract

The embodiment of the invention discloses a DMRS pilot scrambling code configuration information distribution method, device, equipment and storage medium, and relates to the technical field of communication. The method includes: obtaining an empty packet with the same time-frequency resource for space division multiplexing; sorting the terminals according to the direction of arrival of each terminal in the empty packet; obtaining the number of codewords of the terminals, and according to the obtained Determine the DMRS pilot scrambling code configuration information and antenna port number of each terminal according to the codeword quantity and the ordering of each terminal; determine according to the DMRS pilot scrambling code configuration information, antenna port number and codeword data of each terminal Related field values ​​of the downlink control information of each terminal, and delivering the related field values ​​to each terminal. The embodiment of the present invention can make the terminal DMRSs of adjacent beams in the empty grouping orthogonal, reduce the interference between the terminals, and improve the demodulation performance of the terminals.

Description

DMRS pilot scrambling code configuration information allocation method, apparatus, device and storage medium technical field The present invention relates to the field of communication technologies, and in particular, to a demodulation reference signal (Demodulation Reference Signal). Reference Signal, DMRS) DMRS pilot scrambling code configuration information N SCID Distribution method, apparatus, device and storage medium. Background technique [0002] With the continuous development of the fourth generation mobile communication system, the large-scale multiple-input multiple-output antenna technology (Massive Multiple-Input Multiple-Output, M-MIMO) will become an important technology to improve network capacity. [0003] Under the frequency division duplexing (Frequency Division Duplexing, FDD) system, the wave-of-arrival of the uplink and downlink channels Direction Of Arrival (DOA) is reciprocal, and M-MIMO technology divides cells into multiple DOA ranges. Pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0048
Inventor 田晶晶粟中权戚丽丽
Owner ZTE CORP