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Local gateway address updating method and device

A technology of local gateway and address update, applied in the direction of network topology, network data management, electrical components, etc., can solve the problem of LGW address update and so on

Active Publication Date: 2012-11-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a local gateway address update method and device, which can solve the problem of LGW address update when the MRN PGW is relocated during the MRN handover process

Method used

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  • Local gateway address updating method and device
  • Local gateway address updating method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0087] This embodiment describes the method for updating the address of the local gateway. In this embodiment, the S-GW and P-GW of the mobile relay node are built in the DeNB, such as image 3 shown, including the following steps:

[0088] Step 110, the target host base station receives the address allocation information of the local gateway;

[0089] Specifically, during the handover process of the mobile relay, the target donor base station judges whether it has received the local gateway address allocation information, and if so, executes step 120, and if it does not receive the local gateway address allocation information, then the target donor base station does not Allocate an IP address for the local gateway, store the IP address of the mobile relay node as the IP address of the local gateway when it is judged that the mobile relay node supports the LIPA function, and execute step 130 .

[0090] The target donor base station can determine whether the mobile relay node ...

Embodiment 2

[0110] This embodiment introduces a device for updating the address of the local gateway. The device is located in the target host base station, such as Figure 4 As shown, it includes receiving module, distribution module and sending module, where:

[0111] The receiving module is used to receive local gateway address allocation information;

[0112] Specifically, the receiving module may receive the X2 interface handover request message carrying the local gateway address allocation information sent by the source host base station of the mobile relay node; or receive the S1 interface handover request message carrying the local gateway address allocation information sent by the MME, the The MME is the MME serving the mobile relay node, and the local gateway address allocation information in the S1 interface handover request message is sent to the MME by the source donor base station.

[0113] The local gateway address allocation information includes at least one of the foll...

Embodiment 3

[0129] This embodiment introduces a device for updating the address of the local gateway, which is located at a mobile relay node, such as Figure 5 As shown, including a judgment module and a storage module, wherein:

[0130] The judging module is used to judge whether the IP address of the local gateway is received;

[0131] The storage module is used to save the IP address of the local gateway when the judging module judges that the IP address of the local gateway has been received, and when the judging module judges that the IP address of the local gateway has not been received, and Judging that the mobile relay node supports the LIPA function, it stores its own IP address as the IP address of the local gateway.

[0132] Preferably, the device further includes a sending module, configured to send the first S1 interface message to the target host base station, and the first S1 interface message includes the IP address of the local gateway. The first S1 interface message i...

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Abstract

The invention discloses a local gateway address updating method and device, which can solve the problem of LGW (Local Gateway) address updating under the condition that an MRN PGW (Mobile Relay Local Gateway) is re-located in an MRN (Mobile Relay) switching process. The local gateway address updating method comprises the steps that: a target host base station receives local gateway address allocation information; the target host base station judges that an IP address is allocated to a local gateway if an IP address needs to be allocated for the local gateway set in a mobile relay node according to the local gateway address allocation information; and the IP address of the local gateway is sent to a service gateway. One local gateway address updating device is positioned in the target host base station, and comprises a receiving module, an allocating module and a sending module. Another local gateway address updating device is positioned in the mobile relay node and comprises a judging module and a storing module. Another local gateway address updating device comprises a service gateway servicing for UE, and comprises a receiving module and an updating module. By adopting the method and device provided by the embodiment of the invention, the continuity of the S5 connection is ensured, and further the service continuity of a terminal is ensured.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and device for updating a local gateway address. Background technique [0002] In the wireless relay (Wireless Relay) technology in the advanced long-term evolution (LTE-Advanced) standard introduced by the 3GPP standard organization, the relay node (Relay Node, RN for short) provides UEs accessing its cell with common evolved base stations ( eNB) have similar functions and services, and access a DeNB serving it through the wireless interface in a manner similar to that of a normal UE. With the large-scale construction and operation of high-speed railways, the demand for communication on trains continues to increase. However, due to the impact of Doppler frequency shift, frequent switching of cells, and high penetration loss of high-speed rail carriages on high-speed trains, the coverage of existing network base stations is difficult to meet the communica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04W36/00
CPCH04W84/047H04L29/12H04W36/00H04W8/082H04W8/26H04W84/005H04W36/125H04W88/16H04W36/12H04L61/5007
Inventor 黄莹谢峰梁爽
Owner ZTE CORP
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