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Service transmission method and device and system

A service transmission and target service technology, applied in the field of evolved packet core network, can solve problems affecting UE services, user plane communication interruption, etc., achieve the effect of accelerating service processing, optimizing user plane process, and saving public network IP address resources

Inactive Publication Date: 2018-04-03
ZTE CORP
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Problems solved by technology

[0004] However, when the UE is running services, it may be connected to a new SGW (called the target SGW (T-SGW)) as the location moves. It is very likely that this T-SGW is not in the private In the network, the user plane communication between T-SGW and PGW is interrupted, which affects the running services of UE. Refer to figure 1

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  • Service transmission method and device and system
  • Service transmission method and device and system
  • Service transmission method and device and system

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Embodiment Construction

[0072] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0073] figure 1 It is a schematic diagram of the scene of the current UE mobile process, such as figure 1 Shown:

[0074] 1) The UE accesses the PGW through the source SGW (S-SGW), and uses the user plane IP address of the private network to run services on the S-SGW and PGW.

[0075] 2) The UE moves and connects to the T-SGW, and accesses the PGW.

[0076] 3) T-SGW and PGW control plane communication is normal, but because the network of the user plane is unreachable, the service running by the UE is interrupted.

[0077] For this reason, the embodiment of the present...

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Abstract

The present invention discloses a service transmission method, device and system, comprising: when a user equipment (UE) is connected to a target serving gateway (SGW), the target SGW selects the corresponding IP address of the control plane of the packet data gateway (PGW). The user plane IP address; the target SGW sends an update bearer request message to the PGW based on the user plane IP address; the target SGW receives the update bearer response message sent by the PGW, and the update bearer response message carries the newly allocated user plane of the PGW IP address; the target SGW updates the bearer and performs service transmission based on the newly allocated user plane IP address of the PGW.

Description

technical field [0001] The present invention relates to the field of Evolved Packet Core (EPC, Evolved Packet Core), in particular to a service transmission method, device and system. Background technique [0002] User equipment (UE, User Equipment) accessing the EPC needs to be connected through a mobility management entity (MME, Mobility Management Entity), a serving gateway (SGW, Serving GateWay) and a packet data gateway (PGW, Packet Data Network Gateway) to establish a packet Data network (PDN, Packet Data Network) connection. In the actual network, SGW and PGW may be independent network element devices, or they may be integrated network element devices. The S5 / S8 interface between the two may be a proxy mobile IPv6 protocol (PMIP, Proxy Mobile IPv6), but Most of them still use the General Packet Radio Service Tunneling Protocol (GTP, General Packet Radio Service Tunneling Protocol), and need to configure the control plane IP address and user plane IP address respectiv...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04W28/02H04W36/00
CPCH04W28/0215H04L61/2503H04W36/0033
Inventor 朱亚兵詹亚军郑江霓刘其锋
Owner ZTE CORP
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