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Handling multipath transmission control protocol signalling in a communications network

A technology of multi-path transmission and communication network, which is used in wireless communication, transmission system, connection management, etc.

Active Publication Date: 2015-08-19
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This raises two questions; how can the common MPTCP proxy 3 be discovered by both access networks (eg 3GPP and WLAN access), and how can both access networks route MPTCP traffic to the common MPTCP proxy? currently no solution

Method used

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  • Handling multipath transmission control protocol signalling in a communications network
  • Handling multipath transmission control protocol signalling in a communications network
  • Handling multipath transmission control protocol signalling in a communications network

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Embodiment Construction

[0051] Here, refer to image 3 , illustrating an exemplary network architecture. This is a simplified diagram of the architecture described in 3GPP TS 23.401 and 3GPP TS 23.402 and mainly shows the user plane part. It should be noted that although image 3 A Long Term Evolution (LTE) architecture on the 3GPP side is illustrated, but similar techniques can be applied to other types of communication networks, such as WCDMA / HSPA. In this case, the node corresponding to the eNB 6 may be a Radio Network Controller (RNC) or a combined Node B / RNC.

[0052] A mobile terminal such as User Equipment (UE) 4 has dual radios, one 3GPP radio (eg LTE or WCDMA / HSPA) and one WLAN radio. When using 3GPP access network 5, UE 4 communicates with peer 9 in the PDN network via eNodeB 6 and Serving Gateway (SGW) 7 and then PGW 8 . When using WLAN to access the network 10, communication between the PGW 8 and the UE 4 passes through an access controller (AC) 11, which is an access router. In this...

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Abstract

A method and apparatus for handling MPTCP signalling in a communications network. The communications network includes a first node hosting an MPTCP proxy function, and a second node in a second access network. The second node receives from a mobile terminal an attachment request. It then sends a message to a remote database and receives a response, the response including an identity of the first node. An MPTCP data path can then be redirected from the second access network to the MPTCP proxy function. Even in cases where the MPTCP proxy function is located at or between the PDN Gateway and the mobile terminal, the second access can be made aware of the location of the MPTCP proxy function and route MPTCP data traffic accordingly.

Description

technical field [0001] The present invention relates to the field of handling multipath TCP signaling in a communication network, and in particular, to handling multipath TCP signaling sent via a proxy function. Background technique [0002] A Transmission Control Protocol (TCP) session may be defined as "a logical end-to-end data communication link between two applications using TCP as the protocol." Regular TCP limits communication to a single path per session. The Internet Research Task Force (IETF) is currently developing mechanisms for adding the ability to use multiple paths simultaneously in a regular TCP session. An extension to TCP, called "Multipath TCP" (MPTCP), is described in the Internet-Draft "draft-ietf-mptcp-multiaddressed". Architectural guidelines for multipath TCP development have been published in RFC 6182. RFC 6182 defines a "path" as "a sequence of links between a sender and a receiver, defined in that context by a pair of source and destination add...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W76/02H04L45/24H04L45/85H04L47/40
CPCH04L69/18H04L69/14H04W36/08H04L45/24
Inventor D·罗伊兰德G·米尔德S·罗默J·T·维克伯格
Owner TELEFON AB LM ERICSSON (PUBL)
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