Method for informing frequency range switching, method and device for switching frequency range, and system

Abstract

Embodiments of the invention disclose a method for informing frequency range switching, a method and a device for switching frequency range, and a system, and relates to the technical field of wireless communication. The methods, the device and the system are used to improve timeliness of authorized frequency ranges by a way that an unauthorized system moves out of an authorized system. In the method and the device, a control unit of the unauthorized system obtains time information of the authorized frequency range the authorized system uses, and according to the time information, an authorized frequency range' switching activation time when a communication device of the unauthorized system moves out of the authorized frequency range is determined. And a target frequency range to which the communication device moves. Then, the switching activation time and the information of the target frequency range are sent down to the communication device of the unauthorized system. The communication device moves self-frequency-range from the authorized frequency range of the authorized system to the target frequency range. The methods, the device, and the system can perfectly ensure that devices in the unauthorized system move out of the authorized frequency range of the authorized system in time.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a frequency band switching notification and a frequency band switching method, system and equipment. Background technique [0002] Radio communication spectrum is a precious natural resource. With the rapid development of wireless communication technology, the problem of poor spectrum resources is becoming more and more serious. In order to alleviate the shortage of spectrum resources, relevant departments and institutions have carried out monitoring and research on wireless communication spectrum , found that some frequency bands (such as TV frequency bands) are not used by users most of the time or are not used in most regions, some frequency bands are only occasionally occupied for a short time, and other frequency bands are used by multiple systems and multiple users at the same time competitive situation. As a result, some systems with a large service carrying ...

AI Technical Summary

Problems solved by technology

[0016] After the second user equipment perceives the emergence of authorized users, it will migrate the spectrum as a whole, which will interfere with the signals of authorized users throughout the process. Moreover, the signal transmission power of authorized systems such as TV signals is relatively strong, and the signals of the second system will also be greatly affected. Strong interference will affect the accurate reception of relocation signaling, which will also affect the subsequent frequency band relocation

And for the scenario where the licensed system frequency band is leased, it is impossible to exit the leased frequency band on time with this sensing method

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