Heterogeneous-network switching method based on load balancing and QoS

A heterogeneous network, load balancing technology, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., can solve the problem of not comprehensively considering the overall situation of terminals and network access points.

Inactive Publication Date: 2014-03-19
上海交通大学无锡研究院
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, seamless switching between Wi-Fi and 3G networks has become an urgent need for wireless network users. However, most of the current research only considers one aspect, the terminal or system level, without comprehensive consideration of terminals and network access points. the overall situation

Method used

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  • Heterogeneous-network switching method based on load balancing and QoS
  • Heterogeneous-network switching method based on load balancing and QoS
  • Heterogeneous-network switching method based on load balancing and QoS

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing, further specifically illustrate the switching algorithm of the present invention:

[0042] (1) Acquisition of scoring parameters

[0043] Determine the average number of users U of the entire system based on the number of users of the surrounding network access points a

[0044] U a = Σ i = 1 n W u ( i ) n

[0045] Where n is the number of network access points that the current user can scan, W u (i) is the number of users in each network access point.

[0046] Calculate the state W of the network access point st

[0047] W st = ...

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Abstract

The invention proposes a heterogeneous-network switching method based on load balancing and QoS. The method targets at a problem of seamless switching under WiFi and UMTS heterogeneous networks and takes user service models into overall consideration and through performing normalization processing on QoS indexes of network access points, score is adjusted according to the load condition of the network access points so as to give a comprehensive score. An appropriate switching time is given according to score and service conditions, and a comparatively long evaluation time is given if services are under operation so as to prevent frequent switching which results in service interruption. The heterogeneous-network switching method based on the load balancing and QoS is capable of improving the throughput of a terminal, reducing the network time delay of the terminal and at the same time ensuring high throughput and stability at a system level so that the method has a great application prospect.

Description

technical field [0001] The invention relates to a method for switching heterogeneous networks of intelligent terminals in the field of communication technology, in particular to a method for switching heterogeneous networks based on load balancing and QoS. Background technique [0002] With the rapid development of smart terminals, including mobile phones, tablets, PDAs and other devices, people's demand for networks in daily life and work has rapidly expanded. These requirements are mainly reflected in obtaining the required information quickly, stably, and flexibly while ensuring the mobility of accessing the Internet. [0003] The third-generation mobile communication technology (3rd-generation, 3G) refers to the cellular mobile communication technology that supports high-speed data transmission. 3G services can transmit voice and data information at the same time, and the rate is generally above several hundred kbps. Currently there are four standards for 3G: CDMA2000,...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W36/08
Inventor 徐仕谦姚国勤黄正勇俞晖奚望杨震
Owner 上海交通大学无锡研究院
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