Communication method and device

Abstract

The invention provides a communication method and device. The method comprises the following steps: when the state of a first slice in a network slice set allowed to be accessed of terminal equipmentat a certain position (namely a first position) in a registration area of the terminal equipment is updated from an available state to an unavailable state, the network side can update the registration area of the terminal device and notify the terminal device to update the registration area; that the terminal device can access the available slice at any position in the updated registration area can be ensured. Therefore, correct and effective communication between the terminal device and the network side is realized; the problem of communication failure with the network side due to the fact that the terminal device initiates a service request associated with the first slice at the first position because the terminal device does not update the registration area in time can be prevented.

Description

technical field [0001] The present application relates to the technical field of mobile communication, and in particular to a communication method and device. Background technique [0002] After the terminal device carries the requested network slice set and successfully registers to the network, the terminal device obtains the network slice set and registration area allowed to be accessed from the network side, then the terminal device can access any tracking area in the registration area to allow Any network slice in the access network slice set identifies the indicated network slice, and uses the service provided by the network slice. [0003] Operators can decide at any time whether to change the status of network slices deployed in a tracking area. Then, once the state of a network slice indicated by a certain network slice identifier in the network slice set allowed to be accessed by the terminal device changes, it may cause the network slices corresponding to some tr...

AI Technical Summary

Problems solved by technology

Then, once the state of a network slice indicated by a certain network slice identifier in the network slice set allowed to be accessed by the terminal device changes, it may cause the network slices corresponding to some tracking areas in the registration area of ​​the terminal device to no longer Available, if the core network does not notify the terminal device in time, the terminal device may request to access the network slice in the tracking area where a network slice is unavailable in the registration area, resulting in failure and affecting the service experience of the terminal device, so how does the core network judge Whether it is necessary to notify the terminal device, there is no corresponding mechanism to solve it

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