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Method and network node for multiple connectivity handling in a communication system

A technology of network nodes, communication systems, applied in the field of computer programs and computer program products, multi-connectivity processing, and can solve problems such as security impact

Active Publication Date: 2022-04-26
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Splitting in S-GW brings disadvantages such as compromised security because encryption is required at both MeNB and SeNB, while splitting at MeNB level has disadvantages such as all dual connectivity traffic has to be routed, processed and buffered in MeNB Shortcomings

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  • Method and network node for multiple connectivity handling in a communication system
  • Method and network node for multiple connectivity handling in a communication system
  • Method and network node for multiple connectivity handling in a communication system

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Embodiment Construction

[0032] In the following description, for purposes of explanation rather than limitation, specific details are set forth, such as specific architectures, interfaces, techniques, etc., in order to provide a thorough understanding. In other instances, detailed descriptions of well-known devices, circuits and methods are omitted so as not to obscure the description with unnecessary detail. Like reference numbers refer to like or similar elements throughout this description.

[0033] One problem foreseen and solved by the present invention is related to security and will be described below. Control plane packets and user plane packets are handled for security, eg both types of packets are encrypted and in LTE at least control plane packets are also integrity protected when they are transmitted over the air interface. Control plane packets and user plane packets are not protected by themselves, but protection is instead left to data protocols such as Packet Data Convergence Protoco...

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Abstract

A method (20) of multiple connectivity handling in a communication system (1) is disclosed. The method (20) is executable in the first network node (2a) and comprises: generating (21) a data protocol packet destined for the communication device (4), and including (22) in the data protocol packet an identifying data protocol processing context and at least one identifier of the first network node (2a). A method (50) in a second network node (2a) and in a communication device (4), as well as a first and a second network node (2a, 2b), a communication device, a computer program and a computer program product are also disclosed.

Description

technical field [0001] The technology disclosed herein relates generally to the field of communication systems, and in particular to methods, network nodes, computer programs and computer program products for multiple connectivity handling in communication systems. Background technique [0002] Long Term Evolution (LTE) dual connectivity is where User Equipment (UE) is connected to two different network nodes, Master Evolved Node B (MeNB) and Secondary eNB (SeNB) at the same time, and the radio is provided by these two different network nodes. characteristics of the resource. This possibility for a UE to connect to two network nodes gives several advantages such as eg increased data rate, increased network capacity and improved spectrum utilization. [0003] In terms of control plane architecture and user plane architecture, there are different scenarios for the LTE dual connectivity feature. For example, user traffic may be split at core network level (eg, in Serving Gate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/04H04W12/033H04W12/037H04W12/041H04W12/043
CPCH04W12/033H04W12/037H04W12/043H04W12/041H04W76/15H04L69/22H04L69/323H04W40/02
Inventor K.诺曼范锐J.鲁尼G.梅德R.亚森缪庆育
Owner TELEFON AB LM ERICSSON (PUBL)