W1MAX network switching method based on system capacity

A technology of network switching and system capacity, which is applied in the field of WiMAX network switching based on system capacity, can solve problems such as failure to mention, cell network congestion, etc., and achieve the effects of improving throughput, improving switching performance, and reducing packet loss rate

Inactive Publication Date: 2009-12-16
SHANGHAI JIAO TONG UNIV
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  • Description
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Problems solved by technology

Its shortcoming is that it does not mention when to start cell switching
However, the traditional cell handover scheme has the following deficiencies: handover is based only on signal strength, which may not be sufficient in WiMAX networks...

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  • W1MAX network switching method based on system capacity
  • W1MAX network switching method based on system capacity
  • W1MAX network switching method based on system capacity

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Embodiment Construction

[0044] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0045] This embodiment is realized through the following steps:

[0046] Step 1: Calculate the current maximum effective capacity of the base station: first, calculate the current idle capacity through the current actual traffic, and then obtain the current maximum effective idle capacity according to the statistical data. When the current effective idle capacity of the base station is lower than the data flow required by the mobile terminal user, and there is In the case of at least one neighbor idle cell, a handover is triggered and the second step is performed.

[0047] The current maximum effective capacity re...

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Abstract

The invention relates to a W1MAX network switching method based on system capacity, belonging to the technical field of wireless network. The W1MAX network switching method comprises the following steps: currently maximum effective capacity of a base station is calculated; the base station informs a mobile terminal currently idle capacity of all neighbors by broadcast messages of the neighbors; the neighbor broadcast messages are used as carriers to update effective idle capacity of the current base station and the adjacent base stations dynamically to the mobile terminal; when the capacity of the current base station and the adjacent base stations meets the conditions of switching and triggering, the mobile terminal starts switching and scanning of the cell; the mobile terminal selects a target cell and carries out cell switching according to the cell decision strategy. Compared with the prior art, the W1MAX network switching method can improve the switching performance of the mobile terminal in the W1MAX network, thus improving the throughput of the whole network and reducing packet loss.

Description

technical field [0001] The invention relates to a method in the field of wireless network technology, in particular to a system capacity-based WiMAX network switching method. Background technique [0002] For the research on the cell handover scheme in the WiMAX network, predecessors have done a lot of work. Part of the work is to apply the cell handover scheme of other wireless networks (such as GSM) to the WiMAX network; another part of the work is called the queuing theory + resource reservation scheme, that is, the base station reserves a part of bandwidth resources for the cell handover of the terminal, which can Ensure a low handover rejection rate during cell handover, and at the same time appropriately expand the "handover area" of the WiMAX network to increase the queuing time of mobile terminals, thereby reducing the disconnection rate of handover. [0003] Through literature retrieval of the prior art, it is found that P.Boone et al. published in 2008 "Internatio...

Claims

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Application Information

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IPC IPC(8): H04W36/24H04W48/16H04W68/00
Inventor 王新兵王佳京徐友云
Owner SHANGHAI JIAO TONG UNIV
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