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Interference coordination method in 5G communication room subsystem based on Xn interface

A communication room and sub-system technology, applied in the field of communication, can solve the problems of network performance degradation, poor user service experience, unsatisfactory interference coordination effect, etc., to achieve the effect of interference coordination and good resource allocation

Active Publication Date: 2022-07-22
深圳市佳贤通信科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of unsatisfactory interference coordination effect, degraded network performance, poor user service experience, and low resource utilization due to fixed edge resources and central resources, the present invention provides an Xn interface-based 5G communication indoor sub-system coordination interference method

Method used

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  • Interference coordination method in 5G communication room subsystem based on Xn interface
  • Interference coordination method in 5G communication room subsystem based on Xn interface
  • Interference coordination method in 5G communication room subsystem based on Xn interface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like figure 1 As shown, a 5G communication room sub-system coordination interference method based on Xn interface, the specific process is as follows:

[0046] Number the baseband unit BBU, the numbers of the baseband unit BBU are BBU1, BBU2, ..., set the number of cells included in each baseband unit, number each cell, and each cell is numbered Cell1, Cell2, ..., there are two cases for the number of cells contained in each baseband unit BBU, namely, each baseband unit BBU contains two cell specifications and each baseband unit BBU contains four cell specifications, and the edge resources of each cell are set. Initial starting position and distribution direction.

[0047] A communication connection is established between the baseband units BBU through the Xn interface, and data parameter information and measurement report information MR are sent through the Xn interface. The data parameter information includes high interference indication HII, overload indication OI, ...

Embodiment 2

[0068]Dual baseband unit BBU, a single baseband unit BBU is a two-cell specification, the maximum interference adjacent cell is less than or equal to two cells with a bandwidth of 100MHz, a total of 273RB, and the numbers from low frequency to high frequency are 0~272. The baseband unit BBU1 exchanges information through the Xn interface to obtain the baseband The number of cells in the unit BBU2, and obtain the edge starting position and allocation direction of each cell in the baseband unit BBU1, determine the number of possible neighboring cells, and adjust the edge resource selection of each cell within its own coverage.

[0069] like figure 2 shown:

[0070] Case 1: Cells in baseband unit BBU1: Cell1 and Cell2, cells in baseband unit BBU2: Cell3 and Cell4, baseband unit BBU1 Cell1 PCI167 has only one neighbor Cell3 PCI100; Cell1 uses edge cell resource allocation (1), the starting position of edge resources It is RB272, and the allocation direction is from RB272 to RB0;...

Embodiment 3

[0073] Dual baseband unit BBUs, single baseband unit BBUs are all 4 cells, the maximum interference adjacent cell is less than or equal to 4 cells with a bandwidth of 100MHz, a total of 273RB, and the numbers from low frequency to high frequency are 0~272. BBU1 exchanges information through the Xn interface to obtain cells in BBU2 and obtain the edge starting position and allocation direction of each cell in BBU1, determine the number of possible neighbor cells, and adjust the edge resource selection of each cell within its own coverage.

[0074] Assume that the number of interfering cells is 4: the cells in the baseband unit BBU1: Cell1, Cell2, Cell3, and Cell4, and the cells in the baseband unit BBU2: Cell5, Cell6, Cell7, and Cell8.

[0075] Adjacent cell interference of baseband unit BBU1 Cell1: Cell5, Cell6, Cell7 and Cell8; Adjacent cell interference of baseband unit BBU1Cell2: Cell6, Cell7 and Cell8; Adjacent cell interference of baseband unit BBU1 Cell3: Cell7 and Cell8;...

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Abstract

The invention discloses a method for coordinating interference in a 5G communication indoor subsystem based on an Xn interface, which belongs to the technical field of communication, and comprises the following steps: enabling a plurality of base band units (BBUs) to interact through the Xn interface, and increasing the message content of the Xn interface: the number of cells contained in the BBUs, and the initial position and distribution direction of edge resources of each cell, after each cell obtains the edge resource information of the interference cell between the base band units (BBU) in the system, the edge resource selection of the cell is adjusted, the purpose of interference coordination is achieved, for the condition that the load of multiple users is large, compared with the prior art, resource allocation can be better achieved by dynamically adjusting the direction of the center resource or the edge resource, and the resource allocation efficiency is improved. And for the no-load condition with few users, the purpose of interference coordination can be achieved, and the utilization rate of center and edge resources can be improved.

Description

technical field [0001] The invention belongs to the field of communication technologies, and in particular relates to a method for coordinating interference in a 5G communication room sub-system based on an Xn interface. Background technique [0002] Indoor distribution refers to a signal coverage method that introduces base station signals indoors to solve indoor blind area coverage. The indoor distribution system is mainly composed of a signal source and a distribution system. At present, indoor coverage is mainly divided into two categories: indoor shallow coverage scheme and indoor deep coverage scheme. The multi-network optical fiber distribution system has the characteristics of comprehensive monitoring of all nodes from the source access to the end of the distribution system, etc. It is widely used in high-end residential areas, High-end office buildings, airports, gymnasiums and large hotels and other places. The baseband unit supports 2-cell and 4-cell specificatio...

Claims

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Application Information

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IPC IPC(8): H04W24/10H04W72/08H04J11/00
CPCH04W24/10H04J11/005H04W72/541
Inventor 薛巧凤曹毅清黄庆康杨鹤延
Owner 深圳市佳贤通信科技股份有限公司
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