Method, system and device for cell reselection

Abstract

The embodiment of the present invention relates to the field of wireless communication technology, and in particular to a cell reselection method, system, and device, which are used to solve the problem that when the cell reselection process in the prior art is applied to the CR system, the spectrum switching of the CR system is obviously increased. The cell reselection delay of the user equipment increases the power overhead of cell reselection. The method in the embodiment of the present invention includes: after the spectrum switch needs to be performed, the network side device determines the target frequency point information for cell reselection when spectrum switching is performed; and notifies the user equipment of the determined target frequency point information, so that the user The device performs cell reselection according to the target frequency point information. Since the network side equipment notifies the user equipment of the target frequency point information of cell reselection during spectrum switching, so that the user equipment performs cell reselection according to the target frequency point information, thereby reducing the number of cells of idle state terminals during spectrum switching. Reselection delay and power overhead of cell reselection.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a cell reselection 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 , it is found that some frequency bands (such as TV frequency bands) are not used most of the time or in most regions, while some frequency bands have multi-system and multi-user competition at the same time, that is, the use of spectrum resources exists unbalanced phenomenon. It is against this background that the concept of CR (Cognitive Radio, Cognitive Radio) was born. Its basic idea is: on the premise of not ...

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a method, system and equipment for cell reselection, which are used to solve the problem that when the cell reselection process in the prior art is applied to the CR system, the user equipment cell reselection delay during spectrum switching of the CR system is obviously increased, Increased power overhead for cell reselection

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