Fairness resource scheduling method based on resource scheduling in broadband wireless access system

Abstract

The present invention relates to the resource dispatch of a broadband wireless access system based on an IEEE802.16, the present invention is characterized in that the reserved bandwidth required by mutual necessity is calculated according to the Qos parameter of the different business, the admission and control is performed to the newly achieved business according to the reserved bandwidth, and the bandwidth is distributed by the means of a secondary dispatching mode according to bandwidth required by each business and the bandwidth required by a system, the reserved bandwidth is distributed according to each business firstly, the secondary dispatch is performed to the insufficient part of the bandwidth required by the means of the weighted recycle transfer method according to the residual bandwidth after a primary dispatch is performed to the system, the secondary dispatch distributes the different priority factors among the different businesses according to the business priority, meanwhile, the distribution performed according to the actual scale of the bandwidth required by the business residue accounting for the bandwidth required by residue also shall be taken into account. The present invention has the advantage of the equity, the high efficiency, the simplicity and the flexibility on the basis of ensuring the Qos quality.

Description

technical field [0001] The invention designs a resource scheduling method in an IEEE 802.16 broadband wireless access (BWA) system, and belongs to the technical field of wireless communication. Background technique [0002] The IEEE 802.16 standard is the air interface specification of the wireless metropolitan area network, which has very important significance and broad application prospects in the future broadband wireless access. The 802.16 standard not only allows non-line-of-sight connections and supports large-capacity users, but also provides carrier-level QoS guarantees and fully supports the application of rich multimedia services such as voice, video, and data. [0003] An effective QoS guarantee system must allocate wireless resources reasonably, especially for the complex environment of wireless communication environment, the QoS system of the wireless access system faces many challenges. The 802.16 standard implements a series of mechanisms at the MAC layer. ...

AI Technical Summary

Problems solved by technology

[0008] Since the first-level scheduling uses the SPQ strategy, when high-priority services are heavily loaded, it is easy to cause high-priority services to occupy too many resources of low-priority services, so that low-priority services cannot obtain the necessary bandwidth. In the case of "starving to death", it cannot meet the service quality requirements of low-priority services, and loses fairness for low-priority services;

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