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Bandwidth resource allocation method and device for WiMAX system

A technology of bandwidth resource and allocation method, applied in the direction of network traffic/resource management, wireless communication, electrical components, etc., can solve problems such as delayed service, and achieve the effect of maximizing throughput and effective utilization of bandwidth resources

Active Publication Date: 2011-01-26
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

BE services also support prioritization of services based on QoS parameters. Low-priority service flows may lag behind high-priority services.

Method used

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  • Bandwidth resource allocation method and device for WiMAX system
  • Bandwidth resource allocation method and device for WiMAX system
  • Bandwidth resource allocation method and device for WiMAX system

Examples

Experimental program
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no. 1 example

[0041] The first embodiment of the present invention, such as figure 1 As shown, a bandwidth resource allocation method of a WiMAX system includes the following steps:

[0042]Step 101, obtaining channel conditions of all service connections, including one or more of the modulation and coding mode, modulation and coding rate and CINR (Carrier to Interference+Noise Ratio, Carrier to Interference+Noise Ratio) value of the terminal equipment, Save the obtained channel condition in the channel condition attribute of the service connection for scheduling use.

[0043] Step 102: Allocation of basic bandwidth resources according to the minimum reserved rate of the UGS service connection configuration, according to the storage order of all UGS service connections in the memory queue, first-in-first-out basic bandwidth resource allocation for all UGS service connections, until After the bandwidth resource allocation of all UGS service connections is completed, skip to step 103. If the...

no. 4 example

[0112] In the fourth embodiment of the present invention, a bandwidth resource allocation device for a WiMAX system is substantially the same as the device in the third embodiment, the difference is that in this embodiment, the basic bandwidth resource allocation module is used to configure the minimum Basic bandwidth resources are allocated to reserved rate business connections, specifically,

[0113]Calculate the available bandwidth of the WiMAX system;

[0114] Traverse all business connections, and accumulate the minimum reserved rate of all business connections to obtain the total minimum reserved rate of all services;

[0115] Determine whether the available bandwidth of the WiMAX system is greater than the bandwidth corresponding to the total minimum reserved rate of all service connections, if so, allocate bandwidth resources to it according to the minimum reserved rate configured for each service connection in the current frame; otherwise, use UGS service connection, ...

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PUM

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Abstract

The invention discloses a bandwidth resource allocation method and a device for a WIMAX system, and the method comprises the following steps: obtaining channel conditions of all business connections, allocating basic bandwidth resources to all the business connections configured with minimum reservation rate, and then optimizing the bandwidth resource allocation without differentiating business types for all the business connections according to the channel conditions. Compared with the prior art, the scheduling method uses the hierarchical scheduling way and comprises the steps of firstly carrying out first resource allocation for meeting the minimum reservation rate of all the connections, then selecting the business connections with good channel conditions for carrying out second resource allocation under the situation of having abundant bandwidth, thereby not only providing QoS guarantee of the minimum reservation rate, but also realizing the maximization of throughput of the system and the effective utilization of the bandwidth resources.

Description

technical field [0001] The present invention relates to the field of broadband wireless access technology, in particular to a bandwidth resource allocation method and device for a WiMAX (Worldwide Interoperability for Microwave Access) system. Background technique [0002] The development of broadband wireless access technology is very rapid, and its requirements for bandwidth resource allocation are getting higher and higher. Generally speaking, a BS (Base Station, base station) allocates bandwidth resources to an MS (Mobile Station, mobile station) according to a certain strategy. A packet scheduling method in a wireless environment generally needs to consider: variability of wireless links, fairness, QoS (Quality of Service, quality of service), data throughput, and channel utilization. [0003] There are five types of QoS services in the WiMAX system, namely: [0004] UGS (Unsolicited Grant Service, unsolicited grant service) is a real-time data transmission service. I...

Claims

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Application Information

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IPC IPC(8): H04W28/16H04W72/04
CPCH04W72/08H04W72/54
Inventor 彭卓高旭昇
Owner ZTE CORP