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Switching control method, wireless network controller and access node

An access node and wireless network technology, applied in wireless communication, electrical components, etc., can solve the problems of increasing handover, increasing the burden of low-power node RRH, occupying wireless resources, etc., reducing the number of handovers, reducing wireless signaling overhead, The effect of high-efficiency switching control

Active Publication Date: 2014-03-26
BEIJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

It can be seen that in a multi-layer network environment, high-speed user equipment not only increases a lot of unnecessary handovers, but also occupies more wireless resources in the edge area, increasing the burden on the low-power node RRH

Method used

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  • Switching control method, wireless network controller and access node
  • Switching control method, wireless network controller and access node
  • Switching control method, wireless network controller and access node

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Embodiment Construction

[0033] The main idea of ​​this application is to determine whether to trigger a handover (A3 event) by distinguishing the moving speed of the user equipment and effectively evaluating the gain generated by the handover. More specifically, as Figure 5 As shown, on the basis of the original A3 event trigger condition (Equation 1 or Equation 2), a handover judgment based on the mobile speed of the user equipment is added, and then the handover process between multi-layer networks is performed on this basis. In this way, effective handover control for user equipments with different rates / behaviors is achieved.

[0034] The solution of this application is especially suitable for a complex multi-layer wireless network environment, and can adapt to the mobile behavior of the UE. For example, the communication process of the user equipment on the bus is a high-speed user equipment behavior. update the user equipment to a low-speed user equipment.

[0035] In order to make the purpo...

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Abstract

The invention provides a switching control method, a wireless network controller and an access node. The switching control method comprises the steps of detecting whether quality of a signal, on the access node adjacent to the current access node, of user equipment is higher than that of a signal, on the current access node, of the user equipment, and judging whether the user equipment is switched from the current access node to the adjacent access node on the basis of the movement speed of the user equipment when the situation that the quality of the signal, on the adjacent access node, of the user equipment is higher than that of the signal, on the current access node, of the user equipment is detected. Therefore, efficient switching control can be achieved, the frequency of unnecessary switching is reduced, the wireless signaling overheads are reduced, system resources are reasonably distributed, and the advantages of a multi-layer network system is made full use of.

Description

technical field [0001] The present application relates to the field of wireless communication, in particular to a handover control method between multi-layer wireless networks, a wireless network controller and an access node. Background technique [0002] With the vigorous development of mobile communications, the traditional macro cellular network can no longer meet the growing demands of users for diversified business types. At present, in some places where users are relatively dense and the coverage performance of macro base stations is insufficient, some low-power nodes RRH (Remote Radio Head) will be deployed at specific locations in the cell to ensure user communication experience and improve system capacity. Therefore, the network environment becomes more and more complicated. At the same time, mobility management in this complex network environment is becoming more and more important and challenging. [0003] Mobility management is faced with complex user behavior...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W36/30H04W36/32
Inventor 龙航李琳王文博
Owner BEIJING UNIV OF POSTS & TELECOMM
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