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A method for 4G and 5G interoperability

An interoperable and 5G technology, applied in wireless communication, electrical components, etc., can solve problems such as inability to switch smoothly

Active Publication Date: 2021-12-24
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method for interoperating 4G and 5G to solve the problem that the existing 4G and 5G interoperability cannot be smoothly switched when the link fails

Method used

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  • A method for 4G and 5G interoperability
  • A method for 4G and 5G interoperability

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Experimental program
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Embodiment 1

[0027] A method for 4G and 5G interoperability, applied to terminals supporting 4G or 5G access technologies, such as figure 1 shown, including the following steps:

[0028] S1. When the user registers on the 4G / 5G network through the terminal, the interoperability interaction between the terminal and the network is performed, specifically:

[0029] When the user registers on the 4G / 5G network through the terminal, it sends a registration request, in which the registration request carries the 4G / 5G interoperability mode supported by the terminal; the 4G / 5G network returns a registration acceptance message, in which the registration acceptance message carries the network information. Supported 4G / 5G interoperability methods. The 4G / 5G interoperability methods supported by the terminal and the network include: only support interoperability based on N26 interface; only support interoperability without N26 interface; support both interoperability based on N26 interface and intero...

Embodiment 2

[0035] In Embodiment 2, the method of the present invention is illustrated by taking the change of 4G / 5G interoperability mode of 5G users as an example, as follows figure 2 The architecture of the 4G / 5G interoperable system is shown as follows:

[0036] (1) 5GAMF (Access and Mobility Management Function) supports both interoperability based on N26 interface and without N26 interface. N26 interface is the link between AMF and MME (Mobility Management Entity);

[0037] (2) 5G UE (User Equipment) initiates a registration request and successfully accesses the 5G network. In the registration request message sent by the UE, the 4G / 5G interoperability mode supported by the terminal itself is carried (in this embodiment, two interoperability modes based on N26 and no N26 are supported at the same time); In the registration acceptance message, the 4G / 5G interoperability mode supported by the network is carried (in this embodiment, two interoperability modes based on N26 and no N26 ...

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Abstract

The invention discloses a method for interoperability between 4G and 5G, which is applied to a terminal supporting 4G or 5G access technology. When a user registers on a 4G / 5G network through the terminal, the interoperability interaction between the terminal and the network is performed; according to the network The interoperability with the terminal determines the interoperability mode currently used by the user; the network interoperability update is issued, and step S2 is re-executed to update the interoperability mode currently used by the user. The present invention proposes a solution that can support two interoperability modes at the same time, and the network side can notify the terminal when the N26 interface fails, and automatically apply the interoperability mode without the N26 interface. The method of the present invention realizes smooth switching between 4G and 5G, and improves user experience.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for interoperating between 4G and 5G. Background technique [0002] Because the wireless frequency used by the 5G system is relatively high, the coverage of its base station will be greatly reduced compared with 4G. Therefore, the 5G system must be limited to hotspot coverage in the initial stage due to the investment. In order to keep the data service online, it is inevitable that the 5G system needs to communicate with The 4G system performs data service interoperability (that is, switching). [0003] Currently, in the 3GPP standard, there are two 4G / 5G interoperability methods based on the N26 interface (interface between MME and AMF) and interoperability without N26. Among them, the interoperability method based on the N26 interface needs to add an N26 interface between the 4G MME (Mobility Management Entity, Mobility Management Entity) and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/30H04W60/00
CPCH04W36/0055H04W36/305H04W60/00
Inventor 曾颖
Owner GUANGDONG UNIV OF TECH