Spectrum sharing method and management terminal of cognitive radio system

Abstract

The invention provides a frequency spectrum sharing method of a cognitive radio system and a management terminal. The frequency spectrum sharing method has the advantages that before a frequency spectrum resource application is sent to a cognitive database, analyzing the frequency spectrum sharing request of each cognitive node in the managed cognitive radio system, acquiring the related information of the cognitive node adjacent to the cognitive radio system by visiting the cognitive database, and performing interference analysis to determine the first available frequency spectrum of each cognitive node in the cognitive radio system; determining the applicable frequency spectrum of each cognitive node in the managed cognitive radio system according to the distributed frequency spectrum of the managed cognitive radio system, the first available frequency spectrum of each cognitive node in the managed cognitive radio system and the corresponding frequency spectrum resource sharing request of each cognitive node. The frequency spectrum sharing method has the advantages that the needs of each cognitive node are satisfied, the availability of frequency spectrum resource distribution is increased greatly, and the distribution efficiency of frequency spectrum sharing is increased.

Description

technical field [0001] The invention belongs to the technical field of cognitive radio and spectrum sharing, and more specifically relates to a spectrum sharing method and a management terminal of a cognitive radio system. Background technique [0002] The 230MHz frequency band includes 223.025~235.000, a total of 12MHz bandwidth. At present, 25kHz is used as a frequency point for allocation, a total of 480 frequency points, of which nearly 100 frequency points have been allocated by the State Radio Administration to a total of 8 energy, military, meteorological, earthquake, water conservancy, mine, light industry and construction Ministries and commissions, and the remaining 380 frequency points are allocated by the local radio administration according to industry needs. The 230MHz frequency band mainly uses the narrowband data transmission radio system to collect and transmit industrial wireless data. With the in-depth development of industry informatization, the demand ...

AI Technical Summary

Problems solved by technology

[0006] Due to the differences in the cognitive capabilities of the cognitive radio system, interference with adjacent cognitive nodes or adjacent frequency bands with other cognitive radio systems, some or all of the spectrum resources that may be allocated may be unavailable in the above method

In particular, in the scenario where the cognitive radio system contains multiple sites, the existing technology usually applies for the spectrum in units of the cognitive radio system. Due to the differences in the spectrum available for different cognitive nodes, the application for the cognitive radio system is made in units of The obtained spectrum resources are not available for some cognitive nodes

At this time, the cognitive radio system needs to conduct multiple negotiations with the cognitive database to apply for a suitable shared spectrum resource, which increases the spectrum application delay and reduces the spectrum utilization efficiency.

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