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Dedicated network selection method, terminal, access network node and core network node

A core network node and access network node technology, applied in the field of communication, can solve the problems of network signaling load, unfavorable private network isolation, low network selection efficiency, etc., and achieve the effect of avoiding signaling transmission and improving isolation.

Active Publication Date: 2017-03-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] The technical problem to be solved by the present invention is to provide a dedicated network selection method, a terminal, an access network node and a core network node to solve the problem of low network selection efficiency in the existing dedicated network selection method, which easily causes network signaling load , which is not conducive to the problem of private network isolation

Method used

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  • Dedicated network selection method, terminal, access network node and core network node
  • Dedicated network selection method, terminal, access network node and core network node
  • Dedicated network selection method, terminal, access network node and core network node

Examples

Experimental program
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Effect test

Embodiment 1

[0100] Such as figure 2 As shown, the dedicated network selection method in Embodiment 1 of the present invention includes:

[0101] Step 21, obtaining the dedicated core network identification information of the terminal;

[0102] Step 22, during the process of establishing the air interface connection, send an air interface message containing the identification information of the dedicated core network to the access network node, so that the access network node establishes the connection between the terminal and the terminal according to the identification information of the dedicated core network. Connections between private core networks.

[0103] It should be noted that the private core network corresponding to the private core network identification information is a private core network that provides network services for the terminal, and the private core network identification information is usually stored in the terminal.

[0104] The air interface connection mainly...

Embodiment 2

[0111] Such as Figure 4 As shown, the dedicated network selection method in Embodiment 2 of the present invention includes:

[0112] Step 31, sending a non-access stratum NAS request message to a core network node;

[0113] Step 32, receiving a NAS acceptance message fed back by a core network node, wherein the NAS acceptance message includes identification information of a dedicated core network that provides network services for the terminal;

[0114] Step 33, storing the dedicated core network identification information;

[0115] Step 21, obtaining the dedicated core network identification information of the terminal;

[0116] Step 22, during the establishment of the air interface connection, send an air interface message containing the identification information of the dedicated core network to the access network node, so that the access network node establishes the connection between the terminal and the dedicated core network according to the identification informatio...

Embodiment 3

[0134] The dedicated network selection method in Embodiment 3 of the present invention includes:

[0135] Step 31, sending a non-access stratum NAS request message to a core network node;

[0136] Step 32, receiving a NAS acceptance message fed back by a core network node, wherein the NAS acceptance message includes identification information of a dedicated core network that provides network services for the terminal; wherein, the NAS acceptance message also includes dedicated network indication information;

[0137] Step 331, judging whether the dedicated network indication information exists in the dedicated network record table;

[0138] Step 332, if the private network indication information exists in the private network record table, store the private core network identification information as the latest private core network identification information of the private network;

[0139] Step 333: If the dedicated network indication information does not exist in the dedicate...

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Abstract

The invention provides a dedicated network selection method, a terminal, an access network node and a core network node, relates to the field of communication, and aims to solve the problems that the network signalling load is caused easily and isolation of a dedicated network is not facilitated due to low network selection efficiency in the existing dedicated network selection method. The dedicated network selection method comprises the following steps of obtaining identification information of a dedicated core network of the terminal; and, in a process of establishing air interface connection, sending an air interface message including the identification information of the dedicated core network to the access network node, so that the access network node establishes connection between the terminal and the dedicated core network according to the identification information of the dedicated core network. In the invention, the terminal side provides auxiliary information for selection of a dedicated network node; therefore, the access network node conveniently performs selection of the dedicated network node of the terminal; signalling transmission due to reselection of the network node is avoided; and thus, the isolation degree between different dedicated networks can be improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for selecting a dedicated network, a terminal, an access network node and a core network node. Background technique [0002] The (dedicated network) feature allows operators to configure multiple dedicated core networks (dedicated core networks, referred to as DCNs) within a PLMN (Public Land Mobile Network), and each DCN contains one or more CNs (Core Network) nodes, each DCN can be used to serve only certain types of subscribers. This is an optional feature that enables operators to configure one or more RAT (Radio Access Type, wireless access type), such as: GERAN (GSMEDGE Radio Access Network, GSM EDGE Radio Access Network), UTRAN (Unified Terrestrial Radio Access Network) and E-UTRAN (Evolved Unified Terrestrial Radio Access Network). Usually there are many DCN configuration requirements, such as providing DCNs with different features / functions to isolate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/20H04W76/02H04W76/04
CPCH04W48/20
Inventor 康艳超张娟艾明
Owner DATANG MOBILE COMM EQUIP CO LTD
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