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Cell splitting method, cell splitting device and base station device

A cell splitting and base station technology, applied in electrical components, wireless communication, network planning, etc., can solve problems such as restricting communication network performance, increasing operator networking investment costs, co-frequency interference, etc., to improve communication network performance, achieve Efficient multiplexing and the effect of increasing the capacity of the communication network

Active Publication Date: 2013-06-19
CHINA MOBILE COMM GRP CO LTD
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Problems solved by technology

[0004] However, the expansion method of adding base stations in the traditional sense will increase the investment cost of the operator's network; while using the traditional cell split method, due to the short spectrum reuse distance, it is more likely to generate co-channel interference, which restricts the performance of the communication network promotion

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  • Cell splitting method, cell splitting device and base station device
  • Cell splitting method, cell splitting device and base station device
  • Cell splitting method, cell splitting device and base station device

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Embodiment Construction

[0028] In a cellular system, a traditional sector uses a directional antenna to adjust the horizontal half-power beam width (HPBW, half-power beam width) of the beam to split a sector into 3 or 6 sub-sectors to This improves the efficiency of spectrum utilization. Such as figure 1 Shown is the HPBW schematic diagram of the beam. On the vertical plane, cell splitting in the vertical direction can also be realized by adjusting the vertical HPBW of the beam and the downtilt angle (DT, downtilt) of the antenna. When cell splitting is performed on the horizontal and vertical planes at the same time, generally the horizontal plane splits into three sub-sectors, and each vertical plane splits into two sub-sectors, such as figure 2 As shown, it is a schematic diagram of sector 3*2 vertical splitting. The antennas of each sub-sector in the sector will have different DTs and respective HPBWs. The selection of HPBW and HPBW is based on the size and geographical location of the area t...

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Abstract

The invention discloses a cell splitting method, a cell splitting device and a base station device. The cell splitting method, the cell splitting device and the base station device are used for improving cell covering scope, achieving efficient multiplexing of spectrum resources, improving communication network capacity and promoting communication network performance under the condition that no base station is increased. The cell splitting method comprises the steps that a base station obtains user equipment (UE) capacity information in an original fan zone, the original fan zone is split into at least two vertical sub sectors in the vertical direction based on the obtained UE capacity information, and a UE capacity difference value in any two vertical sub sectors does not exceed a preset threshold value; actual distances of each UE and vertical sub sectors are determined; a maximum covering value and a minimum covering value of the actual distances of each UE and vertical sub sectors in the vertical sub sectors are determined; and the base station respectively determines a downwards-slanting angle and a vertical half-power beam width of each vertical sub sector according to the maximum covering value and the minimum covering value of the actual distances of each UE and vertical sub sectors.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a cell splitting method, device and base station equipment. Background technique [0002] In today's wireless communication field, what is most lacking is spectrum resources. In order to effectively utilize limited spectrum resources, the concept of cellular is introduced in network construction, so that the same spectrum resources can be used in "cells" far apart. , to achieve spectrum reuse and improve network capacity. [0003] With the increase in the number of user equipment (UE, User Equipment) and communication traffic, network expansion is an inevitable trend. The existing expansion methods include adding base stations and cell splitting; cell splitting is when the traffic density begins to increase and the channels in each cell can no longer meet the demand, the initial cell can be split into smaller cells . Usually, the radius of the new split ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10H04W88/08
Inventor 叶贤洪杨春霞张忠培
Owner CHINA MOBILE COMM GRP CO LTD
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