Method and device for controlling adaptive optimization switching for heterogeneous converged wireless network

A wireless network and control method technology, applied in wireless communication, electrical components and other directions, can solve the problems of ping-pong handover and handover failure, affecting user QoS, waste of system wireless resources, etc., to optimize handover control, reduce frequent vertical handover problems, The effect of improving resource utilization

Inactive Publication Date: 2012-04-25
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] from figure 1 It can be seen that when the heterogeneous network environment changes suddenly or slowly, if the optimal network result given by the network selection algorithm changes,

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  • Method and device for controlling adaptive optimization switching for heterogeneous converged wireless network
  • Method and device for controlling adaptive optimization switching for heterogeneous converged wireless network
  • Method and device for controlling adaptive optimization switching for heterogeneous converged wireless network

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Example

[0059] First embodiment

[0060] Reference below image 3 Here is a detailed description of an adaptive and optimized handover control method based on a heterogeneous converged wireless network according to this embodiment.

[0061] The present invention selects the optimal switching mode of the optimal heterogeneous converged radio access network by monitoring and comparing the availability of all current candidate networks under the network scenario of multiple heterogeneous wireless network convergence when the current service network is about to be unavailable. Among them, based on the received signal quality monitoring results of the current service network, the adaptive optimization handover control method of heterogeneous converged wireless networks based on sensitivity control is adopted to select and decide the optimal network in the current set of candidate networks as the target network. Optimize the switching method.

[0062] The following describes in detail the adapti...

Example

[0083] Second embodiment

[0084] reference Figure 4 To illustrate this embodiment.

[0085] Step 10: Periodically monitor the network status information of the user terminal (UE).

[0086] Step 20: Judging (determining) the current scene of the UE according to the current network state information of the UE.

[0087] Preferably, the scenarios where multiple possible user terminals are located can be divided according to actual needs and optimization control requirements. When determining the sensitivity, first perform processing according to the network state information of the user terminal, and then process according to the processed network The state information value predicts the scene category where the user terminal is currently located, and then determines the sensitivity parameter value according to the scene category where the user terminal is located.

[0088] It is judged whether the current scene of the UE meets the judgment conditions of the complex handover scene. If t...

Example

[0097] The third embodiment

[0098] The sensitivity control mechanism of this embodiment is based on the multi-attribute decision strategy (MADM), which achieves the purpose of sensitivity control by introducing the sensitivity parameter in the normalization process of MADM and the threshold decision during network selection. .

[0099] Specifically, the present invention can be based on the MADM network selection working mechanism, by introducing sensitivity parameters and decision thresholds, the forward control and backward control are embedded in the attribute normalization processing and the decision after sorting, respectively. The control method is used to control (improve) the recognition degree of network sorting. The backward control method controls the sensitivity of network selection by determining the degree of change in the score, and finally achieves the purpose of optimizing handover control and reducing ping-pong handover in complex handover scenarios .

[0100] ...

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Abstract

The invention discloses a method and device for controlling adaptive optimization switching for a heterogeneous converged wireless network. The method comprises the following steps: selecting a sensitivity control mode; periodically monitoring network state information of a user terminal and processing the network state information of the user terminal; confirming the current scene of the user terminal according to the processed network state information of the user terminal; confirming a sensitivity parameter value of the user terminal according to the current scene of the user terminal; performing a normalizing operation on all alternative network attributes of the user terminal according to the confirmed sensitivity parameter value; confirming a score of each alternative network by adopting a multi-attribute decision strategy according to a result of the normalizing operation; sorting on the basis of the scores; and confirming a target network, to which a mobile terminal is switched, according to a sorting result and a judging system. According to the method, the ping-pong vertical switching caused in a moving process of the user terminal during is reduced and the user experience for service quality is promoted.

Description

technical field [0001] The invention relates to a vertical handover control technology of a heterogeneous fusion wireless network in mobile communication, in particular to an adaptive optimization handover control method and device suitable for a heterogeneous fusion wireless network. Background technique [0002] In recent years, various heterogeneous wireless network access technologies have developed rapidly, providing users with access services with different needs. However, in order to achieve any form of communication between users at any time, anywhere, with anyone and related objects, in order to provide users with good business continuity and QoS (Quality of Service), it is necessary to implement various Coordinated communication for wireless access networks. [0003] In order to realize the coordinated communication of various heterogeneous wireless access networks, the key technology of network control based on heterogeneous fusion is indispensable, and in the ke...

Claims

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Application Information

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IPC IPC(8): H04W36/14H04W36/18H04W36/24
Inventor 靳浩尤媛李勇纪晓东王文博
Owner BEIJING UNIV OF POSTS & TELECOMM
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