Dynamic resource allocation method and device in heterogeneous wireless network

Abstract

The invention discloses a dynamic resource allocation method and device under a heterogeneous wireless network. The dynamic resource allocation method comprises the steps of: periodically obtaining network state information of each access network in the heterogeneous wireless network; receiving a data request sent by each access network in the heterogeneous wireless network; determining a wireless network adapter factor between each data packet to be allocated and each access network according to the obtained network state information; and aiming at a plurality of data packets to be allocated in a service datum, determining an access network to which a (k-1)th datum is allocated according to an access network to which a kth datum is allocated when the value of an effect function of all former k+1 data is maximum, wherein k is a natural number. According to the invention, the performance difference of different wireless network systems and the dynamic load conditions are comprehensively considered, and the dynamic joint scheduling of wireless resources among the access networks is realized, thus the scheduling precision can be improved and the utilization rate of the wireless resources is increased.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a dynamic resource allocation method for wireless communication, in particular to a dynamic resource allocation method applicable to a heterogeneous wireless network where multiple wireless access systems coexist. Background technique [0002] The goal of traditional wireless resource management is to provide service quality assurance for wireless user terminals in the network under the condition of limited bandwidth. Under this condition, the available resources of the wireless transmission part and the network can be flexibly allocated and dynamically adjusted to maximize the utilization of the wireless spectrum, prevent network congestion and keep the signaling load as small as possible. Radio resource management in the traditional sense includes access admission control, handover, load balancing, packet scheduling, power control, channel allocation, and so on. Joint radio...

AI Technical Summary

Problems solved by technology

[0004] However, most of the radio resource allocation algorithms used in the joint radio resource management supporting heterogeneous networks are semi-static algorithms, and there is a problem of low scheduling accuracy.

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