Core Network Address Bridging for Roaming Signaling Access
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Solution Overview
Problem
When a terminal device moves from its home area to a roaming area, the network operator in the home area cannot learn of the terminal device's communication data, affecting its interests.
Innovation Solution
A communication method and apparatus that establishes a connection between a roaming area and a home area by using a network element selection function device to obtain and transmit the address of a core network element in the home area, allowing the home area network operator to access the terminal device's communication data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal device establishes a signaling transmission channel with a network in the roaming area, then the terminal device can communicate in the roaming area, but the network operator in the home area cannot learn of signaling transmission of the terminal device, affecting interests of the network operator in the home area
Solution Approach 1:
The patent introduces a network element selection function device as an intermediary between the home area network and roaming area network. This device obtains the address of core network elements in the home area and transmits this information to the roaming area network, enabling the home area network operator to access communication data while allowing the terminal device to roam freely. The intermediary resolves the contradiction by creating a communication bridge that preserves both roaming capability and data accessibility.
2Ease of operation
If the terminal device moves from home area to roaming area, then the terminal device can access local network services, but the connection between home area network and roaming area network is not established, preventing data access
Solution Approach 1:
The patent implements preliminary action by having the network element selection function device obtain and prepare the address information of core network elements in the home area before the terminal device actually needs to communicate. This advance preparation ensures that when the terminal device moves to the roaming area, the connection path is already established and ready, maintaining both mobility and data transmission reliability without interruption.
Data Source
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AI summary
This application provides a communication method and a communication apparatus, and relates to the communication field. The communication method is applied to a network element selection function device, and includes: obtaining an address of a first core network element in a first area, where the network element selection function device is located in a second area; and sending first information, where the first information is used by a second core network element in the second area to obtain the address of the first core network element in the first area, and the second core network element is configured to transmit signaling of a terminal device based on the address of the first core network element. The first area is a roaming area of the terminal device, and the second area is a home area of the terminal device; or the first area is a home area of the terminal device, and the second area is a roaming area of the terminal device. In this way, a connection between a core network element in the roaming area and a core network element in the home area can be established, allowing a network operator in the home area to obtain communication data of the terminal device, thereby helping improve interests of the network operator.