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Combined loading balancing switching self-optimization method in mobile communication system

A mobile communication system and load balancing technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as handover failure and no direct relationship between handover parameter configuration, and achieve the effect of low handover failure rate

Active Publication Date: 2015-06-03
白盒子(上海)微电子科技有限公司
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Problems solved by technology

Admission control in the handover process is also an important reason for handover failure, especially when the load of the target eNB is high, but it has no direct relationship with the configuration of handover parameters
Current handover optimization methods mainly focus on considering the failure of air interface transmission, and the impact of admission control is often ignored

Method used

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  • Combined loading balancing switching self-optimization method in mobile communication system
  • Combined loading balancing switching self-optimization method in mobile communication system
  • Combined loading balancing switching self-optimization method in mobile communication system

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Embodiment Construction

[0042] The present invention will be further described below in combination with specific embodiments.

[0043] The handover parameter self-optimization method of the present invention is composed of nested inner and outer two-layer loops, wherein the outer loop is triggered when the handover performance does not meet the requirements. parameter to make the switching performance meet the requirements again. After the optimization is completed, the switching performance of the system will rarely fail to meet the requirements, or it will take a long period (T1) before it needs to be adjusted again, so it will not be discussed here; if and only if the switching performance meets the requirements in the inner loop, in the next T1 cycle It is a process of fine-tuning the handover parameters in response to changes in the cell load. Compared with the period in which the switching performance of the system changes, the period in which the cell load changes is much shorter, so the opt...

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Abstract

The invention discloses a combined loading balancing switching self-optimization method in a mobile communication system. The combined loading balancing switching self-optimization method in the mobile communication system comprises the following steps: according to the switching starting process of LTE (long term evolution), the ordered set theta of eNB calculation of LTE is obtained; in the optimization period T1, the switching failure rate and the ping-pong switching rate of each eNB to a notch are recorded, and the self-optimization algorithm of external circulation is executed, thus the switching performance meets the requirement; when the switching performance of the system meets the requirement, in the optimization period T2, the admitted rejection rate is recorded by each eNB, the total switching failure rate is recorded, and the switching parameter combination in the ordered set theta is regulated; and each eNB determines whether the total switching failure rate is minimum, and the switching parameter combination of the next optimization period T2 is determined. According to the invention, the switching performance of the system is ensured; the switching parameters can be regulated through self optimization according to the variation of target cell loading, thus the total switching failure rate becomes minimal, and meanwhile, the function of loading balancing can be finished partially.

Description

technical field [0001] The invention relates to a handover self-optimization method for joint load balancing applied to a mobile communication system, and belongs to the technical field of networks in mobile communication. Background technique [0002] In a mobile communication system, handover is a key technology to ensure seamless service connection and user experience, and the performance of handover largely depends on the setting of handover parameters. [0003] In the handover process of the LTE system, uploading measurement reports, issuing handover commands, random access of the target eNB, and uploading handover confirmation commands are all transmitted on the air interface. The failure of air interface transmission is the main reason for handover failure and is affected by The immediate effect of switching parameter configurations. Admission control in the handover process is also an important reason for handover failure, especially when the load of the target eNB ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02H04W28/08H04W36/00
Inventor 潘志文陈啸刘楠尤肖虎
Owner 白盒子(上海)微电子科技有限公司
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