Dynamic spectrum allocation method, center control unit, bs and spectrum allocation system

Abstract

Disclosed are a dynamic spectrum allocation method, a center control unit, a BS (Base Station) and a spectrum allocation system. The dynamic spectrum allocation method comprises the steps of: receiving a bandwidth request message sent by the BS, wherein the bandwidth request message comprises a RF (Radio Frequency) ability of the BS, bandwidth requests on UFBs (Unlicensed Frequency Bands) of the BS, and a gather of LFBs (Licensed Frequency Bands) of the BS; determining a spectrum allocation plan according to the RF ability of the BS, the bandwidth requests on the UFBs of the BS, the gather ofthe LFBs of the BS and a obtained gather of the UFBs which are idle at present; and sending a bandwidth request response message which comprises the spectrum allocation plan, wherein the spectrum allocation plan is used for indicating UFB information allocated for the BS for use, and needs for gathering the bandwidth request of at least one LFB in the gather of the LFBs of the BS to the USF whichis allocated for the BS for use. Embodiments of the present invention also comprise the center control unit, the BS and the spectrum allocation system, thus failure probability of the spectrum allocation plan can be effectively reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of wireless communication, and in particular to a dynamic spectrum allocation method, a central control unit, a base station, and a spectrum allocation system. Background technique [0002] Cognitive radio technology is a technology that allows wireless communication devices to use vacant spectrum for wireless communication without interfering with authorized users of the same frequency band. In today's increasingly scarce spectrum resources, cognitive radio technology is a way to improve spectrum utilization. The method has been widely concerned and researched, and the dynamic spectrum allocation technology, as one of the core technologies of cognitive radio, has also become a research hotspot. [0003] In the existing technology, dynamic spectrum allocation technology can be divided into central control and distributed from the perspective of network architecture. In the dynamic s...

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Problems solved by technology

[0010] However, the spectrum allocation scheme determined by the above method may not be within the scope of the radio frequency capability of the base station, resulting in the base station being unable to use unlicensed frequency bands in accordance with the instructions of the spectrum allocation scheme, resulting in invalidation of the spectrum allocation algorithm

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