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A method for selecting a packet data gateway, related device and system

A packet data gateway and access gateway technology, applied in the field of communication, can solve the problems of inability to realize P-GW selection, affecting user experience, and inability to realize P-GWID registration, etc.

Active Publication Date: 2020-09-22
中科天网(广东)标准技术研究有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, based on the existing solution, the registration of the P-GW ID to the HSS, or even the selection of the P-GW cannot be realized, and the service continuity when the UE moves from the Non 3GPP side to the 3GPP side cannot be guaranteed, which affects user experience

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  • A method for selecting a packet data gateway, related device and system
  • A method for selecting a packet data gateway, related device and system
  • A method for selecting a packet data gateway, related device and system

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Embodiment Construction

[0083] The embodiment of the present invention provides a method for selecting a packet data gateway, which can realize the selection of a packet data gateway based on a simplified network architecture. The embodiment of the present invention also provides a corresponding device and system.

[0084] Such as figure 1 As shown, under the existing network architecture, the core network EPC mainly includes a mobility management entity (Mobility Management Entity, MME), a general packet radio system (General Packet Radio Service, GPRS) service support node (Serving GPRS Support Node, SGSN) , Serving Gateway (Serving Gateway, S-GW) and P-GW; among them, MME is mainly responsible for the Non-Access Stratum (Non-Access Stratum, NAS) signaling between the user equipment and assigning a temporary identity to the user equipment , select core network elements such as S-GW and P-GW for 3GPP-accessed user equipment; S-GW is the mobility anchor point for handover between local eNodeBs, and p...

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Abstract

Provided are a packet data gateway selection method, and a related device and system, which can fuse some / all of the logic functions of a 3GPP AAA server to a mobility management network element. With regard to a UE accessing from a non-3GPP side, the mobility management network element, or the mobility management network element and a non-3GPP access gateway achieve the selection of a target P-GW, which not only simplifies a network architecture, but also can adapt to the simplified network architecture to achieve the selection of the P-GW.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a method, a related device and a system of a packet data gateway. Background technique [0002] In order to meet the challenge of wireless broadband technology and maintain the leading edge of the 3rd Generation Partnership Project (3GPP) network, 3GPP formulated a long-term evolution (Long Term Evolution, LTE) plan for mobile communication networks at the end of 2004. Under the guidance of the plan, a new mobile communication network architecture is defined, such as figure 1 shown. This architecture is flatter than the second generation (2G) network and the third generation (3G) network, and only retains the packet switching (Packet Switching, PS) domain, so it can be called the evolved 3GPP packet switching The domain (Evolved 3GPP Packet Switched Domain) may also be called an evolved packet system (Evolved Packet System, EPS). [0003] The core network of ...

Claims

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Application Information

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IPC IPC(8): H04W48/18
CPCH04W48/18
Inventor 于游洋李欢靳维生
Owner 中科天网(广东)标准技术研究有限公司
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