A method, device and system for equipment deregistration

Abstract

Embodiments of the present invention provide a device deregistration method, device and system, which relate to the communication field and can deregister the registration information of a UE or an AP in a database. The method includes: the AP receives a deregistration request message sent by the UE, the deregistration request message includes: the identity of the UE, a reason for deregistration, and a spectrum resource for deregistration, where the spectrum resource for deregistration is the UE Part or all of the spectrum resources authorized to be used when registering in the database; sending the deregistration request message to the database; receiving a deregistration response message sent by the database, and sending the deregistration response message to the UE; the deregistration response message includes: the identifier of the UE and the result of deregistration. It can be used to timely cancel the corresponding registration information of the UE in the database when the UE no longer uses the spectrum resources provided by the database or the UE leaves the network.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular to a method, device and system for deregistering equipment in a spectrum database. Background technique [0002] Cognitive Radio (CR, Cognitive Radio) is the most promising technology to solve the current shortage of spectrum resources. The current spectrum use policy is fixed allocation, that is, the government allocates fixed resources for specific users of specific services, such as TV, broadcasting, radar, navigation, etc., all use fixed frequency points, some of which are not used all the time or everywhere. All are in use, so there are certain time periods and certain geographic locations, and some frequency points are not fully used. Studies have shown that a large amount of the fixedly allocated frequency spectrum is not fully used, which has caused a great waste of spectrum resources. By sensing the wireless spectrum environment, cognitive radio can discover these uno...

AI Technical Summary

Problems solved by technology

For example, for the TV spectrum, the database stores all the usage information of the TV spectrum, including the location of the TV tower, the frequency band used, the coverage area, etc., and the cognitive device can obtain the spectrum situation of the current location by querying the database, so as to use digital TV unused spectrum

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