Terminal Cross-Network Paging With Public-Non-Public Type Identification
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Solution Overview
Problem
Paging for user equipment (UE) in a scenario involving both public and non-public networks is inefficient, as UE not subscribed to the non-public network cannot access it, leading to challenges in network type identification and service initiation.
Innovation Solution
A method for UE to receive a paging message from a first network, determine the associated second network type, and perform necessary actions such as cell reselection or response messaging to support seamless communication across network types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UE camps on a non-public network to receive paging, then paging efficiency is improved, but UE not subscribed to the non-public network cannot access it, causing loss of information about the correct network type
Solution Approach 1:
The paging message is segmented into two parts: a first part received on the non-public network containing terminal identification information, and a second part received on the public network containing network type indication information. This segmentation allows efficient paging while preserving network type identification.
Solution Approach 2:
The public network acts as an intermediary to provide network type indication information to the terminal device. When the terminal camps on the non-public network, the public network receives and forwards the second part of the paging message, mediating the information flow to ensure correct network type identification.
2Measurement precision
If UE receives paging message containing network type information, then network type identification accuracy is improved, but message complexity and processing overhead increase
Solution Approach 1:
The paging message is divided into two separate parts received through different networks. The first part contains terminal identification and the second part contains network type indication. This segmentation reduces the complexity of each individual message while maintaining overall identification accuracy.
Solution Approach 2:
The terminal device uses its own identification information (first part of paging message) to trigger the reception and processing of the network type indication information (second part). The terminal's own data serves as the key to unlock the additional information it needs.
3Reliability
If UE switches between public and non-public networks for paging, then service continuity is improved, but switching time and energy consumption increase
Solution Approach 1:
The terminal device receives and processes the first part of the paging message (containing its identification) on the non-public network before needing to switch networks. This preliminary action allows the terminal to be prepared for the subsequent reception of network type information, reducing actual switching time.
Solution Approach 2:
The paging process maintains continuity by using the terminal's own identification information as a continuous thread across both networks. The terminal receives its identification on the non-public network and then uses that same identification context to receive the network type information on the public network, creating a continuous useful action rather than disconnected operations.
Data Source
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Figure 1.3
Figure 2.1
AI summary
This application provides a communication method and a corresponding apparatus and system. The method includes: receiving, in a first network, a paging message that is from a first network device and that is used to page a first terminal device, where the paging message includes first information, and a network type of the first network is a first network type; and determining, based on the first information, a second network associated with the paging message that is used to page the first terminal device, where a network type of the second network is a second network type. The first network type is a non-public network and the second network type is a public network, or the first network type is a public network and the second network type is a non-public network. Cross-network paging between networks of different network types can be supported.