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Mobility management method, network element and system for directly connected tunnel

A technology of direct connection tunnel and management method, applied in network element and gateway GPRS support node) and system fields, can solve problems such as routing detour, achieve the effect of avoiding routing detour and realizing mobility management

Active Publication Date: 2017-04-12
江苏盐综产业投资发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0085] The technical problem solved by the present invention is to provide a mobility management method, network element and system for directly connected tunnels to solve the problem of detours

Method used

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  • Mobility management method, network element and system for directly connected tunnel
  • Mobility management method, network element and system for directly connected tunnel
  • Mobility management method, network element and system for directly connected tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0156] 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.

[0157] Such as Figure 7 As shown, the flow of the service SRNS relocation process in this embodiment includes:

[0158] Steps 701-711: Same as steps 301-311 of the existing serving SRNS relocation process.

[0159] 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.

[0160] Step 713a The new SGSN sends an update PDP context request message to the original GGSN (which carries the new SGSN address for the control plane, SGSN TEID (tun...

Embodiment 2

[0191] 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.

[0192] 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.

[0193] 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.

[0194] Steps 803-807: similar to steps 703-707, same as the existing joint hard handover and...

Embodiment 3

[0214] 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.

[0215] 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.

[0216] Steps 902-909: similar to steps 702-709 in Embodiment 1. Same as the existing joint cell / URA and SRNS relocation process.

[0217] 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.

[0218] ...

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Abstract

The present invention relates to a mobility management method for a direct tunnel, a network element, and a system, applied in a scenario that a terminal moves. The method comprises: a target radio network controller (RNC) sending, through a new serving GPRS support node (SGSN) and an original gateway GPRS support node (GGSN) in order, to a new GGSN a downlink media plane tunnel address allocated by the target RNC to the terminal; and the new GGSN allocating an uplink media plane tunnel address to the terminal and sending the uplink media plane tunnel address to the target RNC through the original GGSN and the new SGSN in order. The present invention solves the problem of the alternate route on the basis of implementing the direct tunnel.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and in particular to a mobility management method, a network element (including a serving GPRS support node (SGSN) and a gateway GPRS support node (GGSN)) and a system of a direct-connected tunnel mobility management method. Background technique [0002] The existing Wideband Code Division Multiple Access (WCDMA for short) system is currently an important system and method for realizing service access based on the wireless WCDMA technology. The core network architecture of WCDMA is as follows: figure 1 As shown, network elements such as a serving GPRS (General Packet Radio Service, general wireless packet service) node (ServingGPRS Support Node, referred to as SGSN), a gateway GPRS node (Gateway GPRS Support Node, referred to as GGSN) and a home user subscription register are included, In this paper, the Home Location Register (Home Location Register, referred to as HLR) in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00H04L29/12
CPCH04W76/22
Inventor 沈炯
Owner 江苏盐综产业投资发展有限公司
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