Load balancing method for LET (Long Term Evolution) network

A load balancing and network technology, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., can solve the problems such as the difficulty of guaranteeing the quality of algorithms and parameters, the high load of the switching destination, and the increase of network signaling overhead. , to achieve the effect of simple judgment method, effective load balancing, and simple and feasible method

Active Publication Date: 2012-12-19
WUHAN POST & TELECOMM RES INST CO LTD
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Problems solved by technology

The general wireless access control method uses complex algorithms and system parameters to make the terminal perform reasonable cell selection and reselection to balance the load of the network. The quality of the algorithm and parameters is not easy to be guaranteed; load balancing through handover control requires Know the load information of the source end and the destination end of the handover, otherwise it is easy to cause the handover failure or the load of the destination end of the handover is too high, so it is necessary to exchange load information between different cells, but it increases the signaling overhead of the network

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  • Load balancing method for LET (Long Term Evolution) network
  • Load balancing method for LET (Long Term Evolution) network

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[0024] The technical solution for load balancing the LTE network designed by the present invention is to carry the load information of the cell in the MIB (Master Information Block, master information block) of the cell broadcast message of the serving network node eNB in ​​the LTE network, and pass the PBCH (Physical broadcast channel, physical broadcast channel) broadcast. In this way, after receiving the load information broadcast by the cell, the LTE terminal can comprehensively judge whether to access and camp on the cell according to the signal strength and load status of the cell.

[0025] The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0026] The basic process of using the cell broadcast message to perform load balancing in the embodiment is as follows:

[0027] The LTE base station judges the load status of the cell, adds the corresponding load status information to the MIB, and bro...

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Abstract

The invention provides a load balancing method for an LET (Long Term Evolution) network, comprising the following steps: utilizing spare bytes in MIB (Master Information Block) information of a broadcast channel of a network node eNB (Evolved Node Base) to carry load status information of cells; and after the receipt of the load status information from the network node by a terminal where the system information is updated, the cell load is high and the cells are selected or reselected, selecting the cell with low load and relatively strong cell signal to access. With the adoption of the load balancing method for the LET network, each cell in the LET network can be enabled to be located at a relatively balanced state; and therefore, the system capacity of the LTE network is improved; the cells are prevented from being congested; the network resource utilization rate is improved; the transmission time delay is decreased; and the user experience is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for load balancing in an LTE (Long term evolution, long term evolution) network. Background technique [0002] As the next-generation wireless communication technology standard, LTE technology has greatly improved the network speed compared with previous communication technologies. The load balancing technology can improve the LTE network capacity, avoid cell congestion, improve network resource utilization and reduce transmission delay. play an important role. [0003] At present, load balancing is mainly carried out through two aspects of wireless access control and handover control. The general wireless access control method uses complex algorithms and system parameters to make the terminal perform reasonable cell selection and reselection to balance the load of the network. The quality of the algorithm and parameters is not easy to be guaranteed...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/08H04W36/22
Inventor 罗先礼邵鹄余刚余庆祥陈建忠颜志凌
Owner WUHAN POST & TELECOMM RES INST CO LTD
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