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Method and equipment for constructing local Internet protocol access (LIPA) packet data network (PDN) connection

An establishment method and technology for connection establishment request, which are applied in the field of LIPA PDN connection establishment, can solve problems such as inability to initiate PDN, UE cannot access local network, etc., and achieve the effect of ensuring normal establishment

Active Publication Date: 2012-01-18
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] After the UE starts the SM back-off timer, since it does not initiate any SM request for the APN, even if the UE wishes to perform LIPA access, the UE cannot initiate an APN due to the operation of the SM back-off timer. The PDN (Packet Data Network, packet data network) connection establishment request for LIPA access, so that the UE cannot access the local network

Method used

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  • Method and equipment for constructing local Internet protocol access (LIPA) packet data network (PDN) connection
  • Method and equipment for constructing local Internet protocol access (LIPA) packet data network (PDN) connection
  • Method and equipment for constructing local Internet protocol access (LIPA) packet data network (PDN) connection

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Embodiment 1

[0051] Embodiment 1 of the present invention provides a method for establishing a LIPA PDN connection, which is a processing method for LIPA conditional APN, such as figure 2 As shown, the method includes the following steps:

[0052] In step 201, after moving to a CSG cell (taking CSG cell 1 as an example), the UE determines that it needs to initiate a LIPA PDN connection for a specified APN (taking APN1 as an example).

[0053] It should be noted that when the UE moves to the CSG cell, the network side can notify the UE of the information (APN1) that the CSG cell (CSG cell 1) supports the establishment of the LIPA PDN connection initiated by the designated APN for the LIPA PDN connection. After that, The UE can learn that APN1 is used for LIPA PDN connection in CSG cell 1.

[0054] In addition, the information of the designated APN used to initiate the LIPA PDN connection for each CSG cell can also be configured on the UE (such as the SIM card of the UE). Based on the conf...

Embodiment 2

[0075] Embodiment 2 of the present invention provides a method for establishing a LIPA PDN connection, which is a processing method for LIPA conditional APN, such as image 3 As shown, the method includes the following steps:

[0076] Step 301, configure the following policies on the MME.

[0077] (1) When judging whether the LIPA Conditional APN is congested, it is only judged for the non-LIPA PDN connection using the APN in the core network and the PGW in the core network corresponding to the APN.

[0078] (2) For the LIPA PDN connection connected to the local network using this APN, the network side does not perform APN congestion control.

[0079] In step 302, the UE sends a PDN connection establishment request using LIPA conditional APN on the macro cell.

[0080] In step 303, the MME rejects the PDN connection establishment request, and sends an SM back-off timer in the PDN connection establishment rejection message.

[0081] In step 304, the UE starts the SM back-off t...

Embodiment 3

[0089] Based on the same inventive concept as the above method, an embodiment of the present invention also provides a network side device, such as Figure 5 As shown, the network side equipment includes:

[0090] The receiving module 11 is configured to receive a packet data network PDN connection establishment request for a designated access point APN from a user equipment;

[0091] A determination module 12, configured to determine that the PDN connection is a local IP access LIPA PDN connection or a non-LIPA PDN connection when the specified APN is in a congested state;

[0092] A processing module 13, configured to accept the LIPA PDN connection establishment request of the user equipment if the PDN connection is a LIPA PDN connection;

[0093] If the PDN connection is a non-LIPA PDN connection, perform congestion control on the PDN connection establishment request.

[0094] The determination module 12 is specifically configured to determine the PDN connection as LIPA ...

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Abstract

The invention discloses a method and equipment for constructing a local Internet protocol access (LIPA) packet data network (PDN) connection. The method comprises: a network side receives a PDN connection construction request which aims at an appointed access point name (APN) and is sent by user equipment; if the appointed APN is in a congestion state, the network side determines that the PDN connection is the LIPA PDN connection or non LIPA PDN connection; if the PDN connection is the LIPA PDN connection, the network side accepts the LIPA PDN connection construction request of the user equipment; and if the PDN connection is the non LIPA PDN connection, the network side performs congestion control on the PDN connection construction request. In the embodiment, the congestion control is not required during construction of the LIPA PDN connection, so the user equipment can construct the LIPA PDN connection which aims at the APN during running of SMback-offtimer of the APN; and the normal construction of the LIPA PDN connection can be guaranteed.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and equipment for establishing a LIPA PDN connection. Background technique [0002] LIPA (Local IP Access, local IP access) technology is a technology for home base stations (such as H(e)NB) scenarios, enabling UE (User Equipment, user equipment) with IP (Internet Protocol, network interconnection protocol) capabilities ) accesses a local network associated with the home base station through the home base station without passing through the operator's core network, and the local network includes a home network, an enterprise network, and the like. [0003] Such as figure 1 As shown, it is a schematic diagram of the architecture of local IP access to the home network. The UE can access the local network through the LGW (Local Gateway). The LGW and the Femtocell are implemented on the same physical entity; after R10, the LGW and the Femtocell can be implem...

Claims

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Application Information

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IPC IPC(8): H04W28/10H04W48/06
Inventor 王胡成
Owner DATANG MOBILE COMM EQUIP CO LTD
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