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Method and mobile terminal device for supporting multiple simultaneous PDN connections to the same APN

A mobile terminal and mobility technology, applied in connection management, access restriction, network data management, etc., can solve complex service continuity and impact problems

Inactive Publication Date: 2012-10-31
NEC EUROPE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Intuitively, however, this operation is too complex and may have serious impact on service continuity

Method used

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  • Method and mobile terminal device for supporting multiple simultaneous PDN connections to the same APN
  • Method and mobile terminal device for supporting multiple simultaneous PDN connections to the same APN
  • Method and mobile terminal device for supporting multiple simultaneous PDN connections to the same APN

Examples

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Embodiment Construction

[0031] Fig. 2a shows a scenario according to the prior art, where it is assumed that a UE (User Equipment) supporting multiple APNs is located within the coverage area of ​​the access point eNB1 (indicated by a circle). A UE operating in active mode and having established a connection to eNB1 has an ongoing session with the PDN, labeled PDN-Connection 1 . As indicated by the arrow, the PDN-Connection 1 is established via the PDN Gateway LP-GW1 (Local P-GW1).

[0032] Figure 2b shows the scenario of Figure 2a at a later point in time after the UE has performed a handover from eNB1 to eNB2. When connected to eNB2, at a certain time UE wants to initiate a new session (Session 2) to the same APN (ie to the PDN shown), while keeping the old session still valid. Although after the handover a new and more suitable PDN gateway (e.g. in terms of load and / or geographical proximity to the UE) becomes available, which is LP-GW2, the UE continues to use the old PDN gateway (LP-GW1 ) to r...

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Abstract

A method for supporting selection of PDN connections for a mobile terminal, wherein said mobile terminal is connected to an access point, and wherein said mobile terminal is in active mode having at least one ongoing session to an APN via a PDN gateway - first PDN gateway -, is characterized in the steps of monitoring whether a more suitable PDN gateway - second PDN gateway - than said first PDN gateway becomes available for said mobile terminal, and, if available, establishing any new sessions of said mobile terminal to said APN by establishing a new PDN connection to said second PDN gateway, while keeping already ongoing sessions associated with the existing PDN connection to said first PDN gateway. Furthermore, a mobile terminal with PDN connection selection support is disclosed.

Description

technical field [0001] The present invention relates to a method for supporting a PDN connection of a selected mobile terminal, wherein the mobile terminal is connected to an access point and the mobile terminal is in at least one connection with an APN via a PDN gateway (first PDN gateway) Active mode for an ongoing session. [0002] Furthermore, the present invention relates to a mobile terminal with PDN connection selection support, wherein said mobile terminal is connected to an access point and said mobile terminal is in at least one connection with an APN via a PDN gateway (first PDN gateway) In active mode of the session. Background technique [0003] Typically, in a web-based mobile network, a mobility management function decides which gateway should handle a particular mobile terminal, eg a user equipment (UE) in Evolved Packet System (EPS) terminology. For example, in EPS networks, such mobility management functionality responsible for handover execution decision...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/06H04W76/02
CPCH04W8/065H04W48/17H04W36/0011H04W76/025H04W76/15H04W36/326H04W36/12
Inventor 塔里克·塔乐伯斯蒂芬·施密特
Owner NEC EUROPE LTD
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