Method for accessing terminal to public and private networks and communication device

Abstract

The invention discloses a method for accessing a terminal to a public and private network and a communication device. When the terminal registers in a first network, a policy management network element of the first network configures a routing policy of the terminal about a PDU session of a second network to the terminal, and the terminal can select the first network to establish the PDU session of the second network according to the routing policy; and therefore, the terminal can select the first network to establish the PDU session of the second network through the permission of the first network. When the terminal supports double radio frequencies, the terminal receives a network selection strategy of a mobility management network element of the first network, and performs terminal registration in the second network according to the network selection strategy. Therefore, when the terminal has the double-radio-frequency capability, the terminal is allowed to register twice, the double-radio-frequency capability of the terminal is fully activated, and the terminal can access the first network and the second network at the same time and respectively access services of the two networks.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to methods and communication devices for terminals to access public networks (referred to as "public networks") and non-public networks (non-public networks, NPN) (referred to as "private networks"). Background technique [0002] NPN is a non-public fifth generation (5 th generation, 5G) mobile communication network, which can rely on the support of the public land mobile network (PLMN), that is, public network integrated non-public network (public network integrated non-public network, PNI-NPN), also The network function can be implemented independently of the PLMN, that is, a non-public network (standalone non-public network, SNPN) can be deployed independently. [0003] The PNI-NPN provides NPN services through the PLMN network, for example, by assigning one or more network slice (network slice) entities to the NPN to implement non-public network function...

AI Technical Summary

Problems solved by technology

[0008] However, for devices using PLMN subscriptions to access private networks, whether it is allowed to use private network base station resources for public network services, there is currently no relevant implementation plan

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