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CGN (Carrier Grade NAT) entity based data transmission method, CGN entity, gateway and system

A data transmission method and entity technology, which is applied in the transmission system, network connection, electrical components, etc., can solve the problems of large resource consumption of CGN entities and low transmission efficiency of UE intercommunication, and achieve the effect of reducing resource consumption and improving transmission efficiency

Active Publication Date: 2011-04-06
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] When UEs under the same CGN entity need to realize intercommunication (UE is called an interworking terminal), the messages between UEs need to pass through the CGN entity, and the CGN entity implements NAT44 conversion for the messages. Therefore, the resources of the CGN entity The consumption is very large, and the transmission efficiency of UE intercommunication is low

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  • CGN (Carrier Grade NAT) entity based data transmission method, CGN entity, gateway and system
  • CGN (Carrier Grade NAT) entity based data transmission method, CGN entity, gateway and system
  • CGN (Carrier Grade NAT) entity based data transmission method, CGN entity, gateway and system

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Such as figure 1 As shown, the embodiment of the present invention provides a data transmission method based on a CGN entity, including:

[0035] Step 11, the CGN carrier-level address translation entity determines to transmit data between the first terminal of the first gateway and the second terminal of the second gateway.

[0036] Step 12, the CGN entity sends the IP address before and after the NAT of the first terminal, the IP address before and a...

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Abstract

The embodiment of the invention relates to a CGN (Carrier Grade NAT) entity based data transmission method, a CGN entity, a gateway and a system. The CGN (Carrier Grade NAT) entity based data transmission method comprises the following steps of: determining data transmission between a first terminal of a first gateway and a second terminal of a second gateway by a CGN entity; and sending IP (Internet Protocol) addresses of the first terminal before and after NAT (Network Address Translation), IP addresses of the second terminal before and after NAT and tunnel information between the CGN entity and the first gateway to the second gateway by the CGN entity so that the second gateway can imitate the CGN entity to transmit data sent by the second terminal to the first gateway. The CGN entity notifies information of an intercommunicating terminal to a gateway of a peer terminal, flow communicated between terminals is transmitted between gateways without being transmitted by the CGN entity, thereby reducing resource consumption of the CGN entity and improving transmission efficiency of terminal intercommunicating.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a data transmission method based on a CGN entity (Carrier GradeNAT, Network Address Translation, Network Address Translation), a CGN entity, a gateway and a system. Background technique [0002] Gateway-Initiated DS Lite (Gateway-Initiated Dual-Stack Lite, gateway-initiated dual-stack simplification) technology can be considered for IPv4 (Internet Protocol version 4, Internet Protocol version 4)-IPv6 (Internet Protocol version 6, Internet Protocol version 6) A solution to the shortage of IPv4 addresses in coexistence. [0003] The gateway initiates dual-stack simplification based on the current 3GPP (3rd Generation Partnership Project, third-generation mobile communication partnership project) deployment architecture: supports dual-stack UE (User Equipment, user terminal), SGW (Servicing Gateway, service gateway) and PGW (Packet Data Network A mobile tunnel is u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L12/66
CPCH04L61/2514H04L61/2532H04L29/12452H04L61/2592H04L61/2076H04L61/2546H04L61/2535
Inventor 周军平郭东
Owner HUAWEI TECH CO LTD