A mobility management method, gateway node and core network

A management method and gateway node technology, applied in the field of gateway nodes and core networks, and mobility management methods, can solve problems such as circuitous routes, inability to access external networks nearby, and long delays

Active Publication Date: 2017-07-14
射阳县兴桥红星纺织工业园管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once moved to a far away place, it is impossible to access the external network nearby
Unavoidable route detours, resulting in waste of transmission resources and longer delays

Method used

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  • A mobility management method, gateway node and core network
  • A mobility management method, gateway node and core network
  • A mobility management method, gateway node and core network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0272] This embodiment is based on Figure 5 The described WCDMA core network architecture describes the relocation process of the serving SRNS without an anchor GGSN. There is no data loss during the handover process. After the handover is completed, the data packets of the MS are routed through the new GGSN to reduce routing detours.

[0273] Such as Figure 7 As shown, the flow of the service SRNS relocation process in this embodiment includes:

[0274] Steps 701-711: Same as steps 301-311 of the existing serving SRNS relocation process.

[0275] Step 712. The new SGSN signals the original SGSN that the SRNS relocation process has been completed by sending a Forward Relocation Complete message. Step 712 and step 713 can occur simultaneously. Step 712 is consistent with step 312 of the existing process.

[0276] Step 713a The new SGSN sends an update PDP context request message (new SGSN address, SGSN TEID (tunnel endpoint identifier), negotiated QoS, etc.) to the origin...

Embodiment 2

[0306] This embodiment is based on Figure 5 Describe the WCDMA core network architecture, and describe the joint hard handover and SRNS relocation process. After the joint hard handover and SRNS relocation process is completed, the MS associates to the new SGSN and new GGSN.

[0307] Step 801: The source RNC initiates joint hard handover and SRNS relocation of the PS domain. Same as the existing joint hard handover and SRNS relocation process.

[0308] Step 802: the source RNC initiates a relocation preparation process by sending a relocation request (Relocation Required) message to the original SGSN (OldSGSN); the relocation type, reason, source cell ID, target cell ID, source RNC to target RNC transparent container and other content. Different from step 702, here the relocation type is set to "involving UE". Same as the existing joint hard handover and SRNS relocation process.

[0309] Steps 803-807: similar to steps 703-707, same as the existing joint hard handover and...

Embodiment 3

[0328] This embodiment is based on Figure 5 The described WCDMA core network architecture describes the joint cell / URA and SRNS relocation process. After the joint cell / URA and SRNS relocation process is completed, the MS associates with the new SGSN and new GGSN.

[0329] Step 901: the terminal sends a cell update (Cell Update) message to the source RNC, or sends URA Update or Cell Update or GRA Update. Same as the existing joint cell / URA and SRNS relocation process.

[0330] Steps 902-909: similar to steps 702-709 in Embodiment 1. Same as the existing joint cell / URA and SRNS relocation process.

[0331] Step 910: The target RNC sends a cell update confirmation (Cell Update Confirm) message to the terminal, or sends a URA Update Confirm or Cell Update Confirm or GRA Update Confirm; the terminal sends a RAN Mobility Information Confirm message (RAN Mobility Information Confirm) to the target RNC . Same as the existing joint cell / URA and SRNS relocation process.

[0332] ...

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Abstract

The invention discloses a mobility management method, a gateway node and a core network. During the relocation process between serving GPRS nodes, the original gateway node (GGSN) accessed by the terminal determines the needs according to the update PDP context request sent by the new SGSN of the terminal. When switching the GGSN, push the PDP context of the terminal to the new GGSN, and notify the new SGSN of the first address information of the new GGSN; the new GGSN sends a message to the new SGSN according to the address and TEID of the new SGSN contained in the PDP context of the terminal. The downlink data of the terminal; the new SGSN sends the uplink data of the terminal to the new GGSN according to the first address information of the new GGSN. The location management function can be realized by adopting the present invention, which supports the separation of terminal identity and location, avoids circuitous routes, and does not affect the consistency of the existing relocation process, so it has good feasibility.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a mobility management method, a gateway node and a core network. Background technique [0002] The existing Wideband Code Division Multiple Access (WCDMA for short) system is an important system and method for realizing service access based on the wireless WCDMA technology at present. The core network architecture of WCDMA is as follows: figure 1 As shown in , including serving GPRS (General Packet Radio Service, general wireless packet service) node (ServingGPRS Support Node, referred to as SGSN), gateway GPRS node (Gateway GPRS Support Node, referred to as GGSN) and home user subscription register and other network elements, In this paper, the Home Location Register (HLR) in 2G (second generation mobile communication technology) and the Home Subscriber Server (HSS) in 3G are collectively referred to as the Home Subscriber Register. / HSS means. Since the existing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/20H04W40/24H04W40/36
CPCH04W36/0033
Inventor 沈炯骆文孙默
Owner 射阳县兴桥红星纺织工业园管理有限公司
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