Handover management method based on mobile edge calculation

An edge computing and management method technology, applied in the field of wireless communication, can solve the problems of excessive handover interruption delay, inconsistent user experience, and handover failure, and achieve the effect of reducing the handover interruption delay

Active Publication Date: 2018-07-13
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] During the handover process from the source base station to the target base station based on X2, there are problems such as handover failure, excessive handover interruption delay, inconsistent user experience before and after handover, etc.

Method used

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  • Handover management method based on mobile edge calculation
  • Handover management method based on mobile edge calculation
  • Handover management method based on mobile edge calculation

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Embodiment Construction

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Such as figure 1 As shown, the network architecture of the MEC-based small cell base station handover management method, each cluster contains a collection of multiple small cell base stations, and a group of adjacent small cell clusters form a local network. The MEC server is deployed on the access network side and connects the base station and the core network element through the interface. The user equipment moves and switches in the overlapping area of ​​the small cell cluster, and moves from the coverage area of ​​one base station to the center of the coverage area of ​​another base station; the IP address of the user equipment The data packet is encapsulated in the core network (CN) specific protocol. The core network part mainly includes the mobility management entity (MME) responsible for the transmission of control plane sig...

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Abstract

The invention relates to a handover management method based on mobile edge calculation, and belongs to the technical field of wireless communication. The method comprises the following steps: inventing a network architecture for deploying a mobile edge server in a dense cellular network scene, and proposing a path-free handover procedure processing method based on MEC handover decision to reduce the quality of service of users while reducing path switching request and reducing the load of a large amount of signaling of the core network. An MEC controls an X2 interface to realize the data transmission of buffer data area of a source base station through a data link formed between the base stations in a handover completion phase, an optimal length of a data link list is determined by using aMarkov decision process (MDP) model optimization method under the condition of satisfying the user service quality requirements, and by adoption of the scheme, the signaling load and delay of the core network are effectively reduced, and meanwhile higher throughput is achieved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a handover management method based on mobile edge computing. Background technique [0002] In recent years, with the rapid development of mobile smart terminals, the demand for mobile communication data traffic has shown explosive growth. In order to meet the needs of users, 5G networks are developing towards densification, integration, and broadband. A dense network enhances spatial coverage through high-density deployment of small cell base stations, which can greatly increase network capacity. However, with the densification and layering of networks, mobility management is a key challenge affecting this new network architecture. [0003] Based on the X2 handover decision process, the target base station makes an admission decision based on the cell load and measurement reports. If the target cell load exceeds the threshold, the target base station will reject th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W24/10H04W36/00H04W36/18
CPCH04W24/02H04W24/10H04W36/0016H04W36/0088H04W36/18Y02D30/70
Inventor 唐伦赵旭马润琳刘云龙陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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