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Multi-cell distribution-type M2M load balancing method in LTE-A

1. LTE-A, load balancing technology, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., can solve the problems of signaling congestion, large signaling overhead, etc., to avoid overhead and delay, improve The effect of cell access throughput and user access delay performance

Active Publication Date: 2013-12-18
天元瑞信通信技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing M2M load balancing methods are often implemented on the network side, requiring information interaction between a large number of M2M terminals and network-side devices, which brings a lot of signaling overhead and is prone to signaling congestion

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  • Multi-cell distribution-type M2M load balancing method in LTE-A
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  • Multi-cell distribution-type M2M load balancing method in LTE-A

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Embodiment Construction

[0020] refer to figure 1 , the application scenario of the present invention is an LTE-A system multi-cell scenario, and the M2M terminals are evenly distributed in the measurement area.

[0021] refer to figure 2 , the concrete steps of the present invention are as follows:

[0022] Step 1: The M2M terminal receives the system broadcast message SI sent by the base station, and obtains the system bandwidth B of the base station u,i , and measure the cell signal quality Γ u,i , u=1,...,K, i=1,...,M, where M is the number of cells in the measurement area, and K is the number of M2M terminals;

[0023] Step 2: M2M terminal according to the system bandwidth B u,i and cell signal quality Γ u,i , calculate the data rate R that can be obtained by accessing each cell u,i =B u,i log 2 (1+Γ u,i );

[0024] Step 3: The M2M terminal uses the achievable data rate R of each cell to access u,i , calculate the probability of each cell The value range of the access probability is...

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Abstract

The invention relates to a multi-cell distribution-type M2M load balancing method in LTE-A. A distribution-type parallel optimization concept is adopted, namely a base station transmits system broadcast information, after an M2M terminal receives the information such as signal quality and a system band width, a revenue function is constructed, the work that service cells are obtained according to the principle of revenue maximization and the like are independently completed by the M2M terminal, and large feedback quantities from the terminal to the base station and expenditure and time delay caused by feedback are avoided. In the construction process of the revenue function, according to the principle that revenue gained due to the fact that the M2M terminal has access to the cells is inversely proportional to load of the cells, the data rate at which the terminal has access to the cells are taken as the efficiency of the terminal, the load of the cells is taken into consideration and the revenue gained after the equipment has access to the cells can be achieved, the maximized access revenue corresponds to the optimal access cell of equipment, load balancing among the cells can be achieved, and cell accessing handling capacity and user access time delay performance can be improved.

Description

technical field [0001] The invention belongs to the field of mobile communication, and in particular relates to a multi-cell distributed M2M load balancing method for machine-to-machine communication in an advanced long-term evolution LTE-A scenario, in particular to a multi-cell distributed M2M load balancing method in LTE-A. Background technique [0002] Machine-to-machine communication (M2M) refers to a machine-to-machine communication method that does not require human intervention. M2M has trillion-level communication equipment. The simultaneous access of a large number of terminals can easily cause the wireless access network of the mobile communication network to be overloaded and the signaling network to be congested, which will lead to increased access delay, packet loss, and even service interruption of M2M users. . Therefore, 3GPP has proposed many schemes such as the access-type barring ACB mechanism to solve the problem of congestion overload in a single cell. ...

Claims

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Application Information

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IPC IPC(8): H04W28/08
Inventor 李晓辉张妙李丹黑永强付卫红刘乃安
Owner 天元瑞信通信技术股份有限公司
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