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Load balancing method for guaranteeing quality of service of real-time services

A business service and load balancing technology, applied in network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as link connection failure, high signaling overhead, and inability to guarantee user service quality, so as to reduce impact, The effect of reducing the number of switching times

Inactive Publication Date: 2012-03-14
UNIV OF SCI & TECH OF CHINA
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This switch based on load balancing will bring three problems to the service experience: one is that the service experience of guaranteed bit rate (GBR) users decreases due to the increase of delay caused by the switch; the other is that the switch of a large number of users triggered by load balancing will bring thirdly, because the lowering of the handover threshold will cause the user to handover to the neighboring cell with poor quality, causing link connection failure
[0005] "International Institute of Electronics and Electrical Engineers Mobile Computing" (IEEE Transactions on Mobile Computing, Vol.7, No.12, Dec.2008, pp.1504-1518.) summarizes the load balancing methods that have been used from a mathematical point of view, and The corresponding closed-form expression is given, but it does not consider the difference in the impact of load balancing on different services, and the user's quality of service (QoS) cannot be guaranteed during the load balancing process

Method used

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  • Load balancing method for guaranteeing quality of service of real-time services
  • Load balancing method for guaranteeing quality of service of real-time services
  • Load balancing method for guaranteeing quality of service of real-time services

Examples

Experimental program
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Embodiment 1

[0025] This embodiment adopts the Long Term Evolution (LTE-A) system, and the specific simulation parameters are as shown in Table 1 below:

[0026] Table 1 LTE-A system simulation parameter table

[0027]

[0028]

[0029] During the simulation process, the delay-sensitive VoIP (VoIP) service and the rate-sensitive data service (FTP) are evaluated. The parameters generated by the service model are listed in Table 2 below:

[0030] Table 2 Parameter table of generation model of VoIP service and data service

[0031] Representative business VoIP service data business service quality level Conversation background class conversational meaning call document dowload session interval (seconds) Exponential distribution (1) Exponential distribution (1) Implications of group calling activation period document Number of group calls Geometric distribution (24) Constant distribution (1) Group call interval (seconds) G...

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Abstract

The invention discloses a load balancing method for guaranteeing quality of service of real-time services, which is characterized in that: a serving base station executes insinueert of service delay parameters and defines value ranges of the service delay parameters according to service grade instructions of user bearer services, so that different users have different switch triggering judgments in the process of load balancing. The load balancing method for guaranteeing the quality of service of the real-time services switches non-guaranteed bit rate service users as possible according to service characteristics, avoids the switching of guaranteed bit rate service users, can improve the proportion of users satisfying the real-time services in a system, and simultaneously reduces the switching times caused by the movement of the load balancing.

Description

technical field [0001] The invention belongs to the technical field of long-term evolution (LTE-A) system network optimization, in particular to a mobile load balancing method in a self-optimizing network. Background technique [0002] In Long Term Evolution (LTE-A) Technical Report 36.902 (TR36.902) of the Third Generation Partnership Project (3GPP), Mobile Load Balancing (MLB) has been defined as one of the important functions in self-optimizing networks. The purpose of load balancing is to transfer part of the load in the heavy-loaded cell to the light-loaded neighboring cell through the handover operation when the cell load exceeds the threshold value, so as to realize load balancing between cells and optimize network performance. [0003] Load balancing reduces the handover threshold of users in a heavily loaded cell, and switches some of its users to lightly loaded neighboring cells. This switch based on load balancing will bring three problems to the service experien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/08H04W28/08H04W36/22
Inventor 祁华礼邱玲
Owner UNIV OF SCI & TECH OF CHINA
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