A method to avoid ping-pong switching in LTE load balancing migration

A technology of ping-pong switching and load balancing, applied in electrical components, wireless communication, etc., can solve the problems of user service quality degradation, waste of wireless access system resources, etc., and achieve the effects of convenient acquisition, improved user perception, and fast adjustment speed

Active Publication Date: 2017-10-24
WUHAN POST & TELECOMM RES INST CO LTD
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AI Technical Summary

Problems solved by technology

[0014] The problem to be solved by the present invention is how to avoid the ping-pong handover caused by handing over the UE to an adjacent cell to balance the traffic during the MLB process, resulting in the degradation of user service quality and serious waste of resources in the wireless access system

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  • A method to avoid ping-pong switching in LTE load balancing migration

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Embodiment Construction

[0031] The implementation of the present invention provides a detection and processing mechanism of ping-pong switching to avoid the ping-pong switching caused by load balancing, thereby improving user experience and network performance. The following is combined with the specific implementation figure 1 The present invention is described in further detail.

[0032] see figure 1 , the flow process of the embodiment is as follows:

[0033] Step 1. The base station in the LTE network periodically detects the load level of each cell. Generally, the base station will traverse all the corresponding cells for detection. The current cell detected by the base station S is set as the cell s, and it is judged whether the cell s is overloaded. If the cell is overloaded, Go to step 2, otherwise end the process.

[0034] During specific implementation, it can be judged whether the cell is overloaded by judging whether the cell load value is greater than the threshold value. It is sugges...

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Abstract

A method for avoiding ping-pong switching in LTE load balancing migration comprises the steps that cells in an LTE network periodically detect the load level of a service cell s and judge whether the cell s is overloaded or not; if the cell s is overloaded, certain sets of UE is selected to issue measurement configuration, and the UE is configured to continuously report RSRP and RSRQ; if the cell s obtains the measured and reported load information of all adjacent cells, loads of all the adjacent cells are compared with an accepting threshold, and the adjacent cells with the loads lower than the accepting threshold are obtained to serve as candidate destination cells; the historical information of the UE reporting a measuring report is inquired, whether ping-pong switching occurs between the cell s and one of candidate cells or not is judged, whether it is suitable for initiating a switching request to a target cell or not is judged by comparing the adjacent cell signal intensity of the current switching and the adjacent cell signal intensity of the historical ping-pong switching, and thus ping-pong switching is avoided. The method for avoiding ping-pong switching in LTE load balancing migration can prevent a user from being migrated to an adjacent base station to cause ping-pong switching in the LTE load balancing process.

Description

technical field [0001] The invention belongs to the field of mobile communication, and in particular relates to a method for avoiding ping-pong switching when load balancing migrates a UE in an LTE network. Background technique [0002] In the protocol stack of the 3GPP LTE access network system, Mobility Load Balancing (MLB) distributes measurement configurations to some UEs, obtains measurement reports reported by UEs, and switches some users in overloaded cells to low-loaded neighboring cells in advance. , which is used to solve the unbalanced traffic among multiple cells and improve the utilization rate of wireless resources. [0003] Ping-pong handover means that a user equipment (UE) performs multiple handovers between cells in the system, and after each handover, the UE stays in the target system for a relatively short time. equipment are adversely affected. On the one hand, the user equipment performs unnecessary switching, resulting in a decrease in user service q...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00
Inventor 陈钢张娟
Owner WUHAN POST & TELECOMM RES INST CO LTD
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