A clustering-based mobility management method for ultra-dense small networks in 5G systems

A management method and ultra-intensive technology, applied in electrical components, wireless communication, etc., can solve the problems of increased mobile complexity of user equipment, achieve the effects of reducing call drop rate, improving handover success rate, and reducing call blocking rate

Active Publication Date: 2018-03-27
CERTUS NETWORK TECHNANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, with the development of mobile networks, the types of services are diversified, and the mobile complexity of user equipment is increasing. The original cell handover mechanism can no longer adapt well to the complex network environment.

Method used

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  • A clustering-based mobility management method for ultra-dense small networks in 5G systems
  • A clustering-based mobility management method for ultra-dense small networks in 5G systems
  • A clustering-based mobility management method for ultra-dense small networks in 5G systems

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Embodiment Construction

[0085] Examples of the present invention will be described in detail below.

[0086] The present invention provides a mobility management method based on clustered ultra-dense small networks in the 5G system, such as Figure 9 As shown, the mobile terminal periodically monitors the signal quality of cell base stations, including macro base stations and small base stations, to implement periodic monitoring and update location information. If the signal quality of cell base stations (including macro base stations or small base stations) meets the handover conditions, the mobile terminal will prepare for handover. If the signal quality of the cell base station does not meet the handover condition, the mobile terminal will continue to monitor the signal of the cell base station. Under the premise of ensuring the optimal network signal, the network resources of the cell are used to the maximum extent.

[0087] The working principle of the birth-death process model is that the arr...

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Abstract

The present invention provides a clustering-based ultra-dense small network mobility management method in a 5G system. In the present invention, ultra-dense cells are divided into several micro-cell clusters, and each micro-cell cluster has a common pilot frequency. Use the birth-death model to predict the channel conditions of the cell, and according to the quality of the received cell signal, comprehensively consider the service situation and mobile state of the user terminal to select a suitable base station as the handover target, and the blocking rate of the new call and handover of the device can be obtained. Formulate correct handover strategy, improve the success rate of handover, and reduce the call drop rate and call blocking rate of user terminals. When the device is in the idle state and the user terminal is at low speed, switch to the pilot base station of the micro cell; when the user terminal is at medium and high speed, switch to the macro base station; when the device is in the connected state, there is business service , if the user terminal is at low speed, handover to the small base station of the micro cell; when the user terminal is at medium and high speed, handover to the macro base station.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a mobility management method based on clustered ultra-dense small networks in a 5G system. Background technique [0002] In future mobile networks, traditional high-power macro base stations and a large number of low-power small base stations will be deployed. In theory, the overall network capability is related to the number of cells per unit area. In a densely deployed network, both useful signals and signal interference will be strengthened, and handoffs will be frequent in the mobility management of mobile operators. [0003] In future wireless networks, there are two ways to achieve high throughput, including a large number of MIMO antennas and ultra-dense network deployment. A large number of MIMO antennas are used on the base station. The performance of MIMO will be limited due to space constraints, and the system will be saturated. The TDD system i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/32
Inventor 朱晓荣张涛赵夙杨龙祥朱洪波
Owner CERTUS NETWORK TECHNANJING
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