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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, the terminal is immediately notified to switch, which is likely to cause ping-pong switching and Handover fails, which will not only waste system wireless resources, but also affect user QoS

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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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no. 1 example

[0060] Refer below image 3 A method for adaptively optimizing handover control based on a heterogeneous converged wireless network according to this embodiment will be described in detail.

[0061] In the network scenario where multiple heterogeneous wireless networks are converged, when the current service network is about to be unavailable, the present invention selects the optimized switching mode of the optimal converged wireless access network by monitoring and comparing the availability of all current alternative networks. Among them, based on the monitoring results of the received signal quality of the current service network, the adaptive optimal handover control method of the heterogeneous fusion wireless network based on sensitivity control is used to select and judge the optimal network in the current candidate network set as the target network. Optimize switching method.

[0062] The following describes in detail the adaptive optimization handover control method ...

no. 2 example

[0084] refer to Figure 4 This embodiment will be described.

[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, multiple possible scenarios where the user terminal is located can be divided according to actual needs and optimization control requirements. When determining the sensitivity, processing is first performed according to the network state information of the user terminal, and according to the processed network status information The state information value predicts the current scene category of the user terminal, and then determines the sensitivity parameter value according to the scene category of the user terminal.

[0088] Judging whether the current scene where the UE is in meets the judgment condition of the complex handover scene, if it meets the judgment condition o...

no. 3 example

[0098] The sensitivity control mechanism of this embodiment is based on the multiple attribute decision-making strategy (MADM), and the purpose of sensitivity control is achieved by introducing sensitivity parameters in the normalization process of MADM and introducing threshold judgments in network selection. .

[0099] Specifically, based on the network selection mechanism of MADM, the present invention can embed forward control and backward control respectively in the attribute normalization process and the sorted decision by introducing sensitivity parameters and decision thresholds, wherein the forward The control method is used to control (improve) the score recognition degree of network sorting, and the backward control method controls the sensitivity of network selection by judging the score change degree, and finally achieves the goal of optimizing switching control and reducing ping-pong switching in complex switching scenarios .

[0100] MADM Algorithm Based on Sen...

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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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