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Load balancing and throughput 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 the problems of not considering cell throughput, optimization, and inability to fully utilize system wireless resources.

Inactive Publication Date: 2010-07-21
SOUTHEAST UNIV +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the existing handover load balancing algorithm does not consider the optimization of cell throughput when performing load balancing, so that it cannot fully utilize the wireless resources of the system

Method used

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  • Load balancing and throughput optimization method in mobile communication system
  • Load balancing and throughput optimization method in mobile communication system
  • Load balancing and throughput optimization method in mobile communication system

Examples

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Embodiment Construction

[0058] The invention proposes a method based on load balancing and throughput optimization.

[0059] Taking the LTE system as an example to give an embodiment:

[0060] First define the following variables:

[0061] Define load balancing directives:

[0062] ξ ( t ) = Σ i = 1 N ( ρ i ( t ) - ρ ‾ ( t ) ) 2 - - - [ 1 ]

[0063] where N is the number of cells in the system, ρ i (t) is the load of cell i in time slot t, defined as the number of radio resources occupied by the cell b i and t...

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Abstract

The invention relates to a load balancing and throughput optimization method in a mobile communication system, comprising the following steps of: step one, exchanging the respective load information between base stations and adjacent base stations, sequencing cell load information, obtaining a cell with maximum load and marking the cell as the cell i; step two, if the load of the cell i is more than the given threshold value sigma set by an operation merchant according to the self requirements, switching into step three, otherwise, switching into step five; step three, in the cell i, defining the gain of utility function brought by the user k switched from the cell i to a cell j for all the users and adjacent cells based on the following formula; step four, if the load of the cell i is still more than the given threshold value sigma, switching into the step three, otherwise, ending the process. The method simultaneously considers load balancing and system throughput optimization, thus not only reducing the switching times and rapidly realizing load balance for further reducing the signalling expense of the system, but also optimizing the system throughput.

Description

technical field [0001] The invention relates to a method for load balancing and throughput optimization applied to a wireless communication system, and belongs to the technical field of networks in mobile communication. Background technique [0002] In a cellular mobile communication system, the load among cells is often unbalanced. Some cells may have a relatively high load, while others may have a relatively low load. As a result, wireless resources in high-load cells are tight and cannot meet the quality of service of users. requirements, while in low-load cells, radio resources are wasted. In order to improve the utilization rate of wireless resources, a handover load balancing algorithm is proposed, that is, by switching users in a high-load cell to a low-load cell, the approximate load balance of the cell is achieved. However, the existing handover load balancing algorithm does not consider the optimization of the cell throughput when performing load balancing, so tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/08H04W36/00
Inventor 尤肖虎王浩潘志文刘楠吴平丁良辉
Owner SOUTHEAST UNIV
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