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Implementation method, network element and system for establishing direct tunnel

A tunnel and direct technology, applied in the field of mobile communication, can solve problems such as routing detours, achieve the effect of avoiding detours and realizing mobility management

Active Publication Date: 2017-07-21
盐城市纺织染整产业园实业开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] The technical problem to be solved by the present invention is to provide an implementation method, network element and system for establishing a direct tunnel to solve the problem of circuitous routes

Method used

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  • Implementation method, network element and system for establishing direct tunnel
  • Implementation method, network element and system for establishing direct tunnel
  • Implementation method, network element and system for establishing direct tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1 (representative embodiment)

[0080] Figure 4 Shown is embodiment 1 of the present invention, when terminal changes the SGSN that connects because of moving, promptly when from original SGSN (Old SGSN) to new SGSN (New SGSN), by new SGSN help between target RNC (Target RNC) and An example of establishing a direct tunnel between new GGSNs. Among them, when the terminal migrates to the new SGSN, in order to avoid the above-mentioned problems caused by the roundabout route, the terminal should also change the GGSN currently attached, that is, migrate from the original GGSN (Old GGSN) to the new GGSN (NewGGSN), and establish a direct tunnel The process includes:

[0081] Step 401: the target RNC assigns a downlink tunnel address to the terminal;

[0082] During the moving process of the terminal, when moving from the service area of ​​the source RNC (Source RNC) to the service area of ​​the target RNC, the target RNC needs to allocate a downlink tunnel for ...

Embodiment 2

[0097] Figure 5 Shown is embodiment 2 of the present invention, is under the scenario of serving RNC relocation in WCDMA / TDCDMA network, the embodiment that helps to establish direct tunnel between target RNC and new GGSN by new SGSN, specifically comprises the following steps:

[0098] Step 501: the source RNC decides to initiate an SRNS relocation (SRNC Relocation) procedure;

[0099] Step 502: same as step 202.

[0100] In this step, the relocation type needs to be set to "not involving UE".

[0101] Step 503: same as step 203;

[0102] Steps 504a-504b: same as steps 204a-204b;

[0103] However, it must be emphasized that in this embodiment, since the terminal needs to change the attached GGSN (namely the new GGSN), the new SGSN does not grasp the uplink tunnel address information allocated to the terminal by the new GGSN in this step. At this time, what is different from the prior art is that in this step, the new SGSN does not need to send the uplink tunnel address i...

Embodiment 3

[0136] Image 6 Shown is the implementation 3 of the present invention, which is under the scenario of "joint hard handover and serving RNC relocation" in the WCDMA / TDCDMA network, the new SGSN helps to establish a direct tunnel method between the target RNC and the new GGSN, specifically including the following step:

[0137] Step 601: the source RNC initiates joint hard handover and SRNS relocation of the PS domain;

[0138] Step 602: Same as step 502 (202). In this step, the relocation type needs to be set to "involving UE";

[0139] Step 603: same as step 503 (203);

[0140] Steps 604a-604b: Same as steps 504a-504b, the target RNC sends the downlink tunnel address information to the new SGSN;

[0141] Step 605: same as step 505 (205);

[0142] Step 606: same as step 506 (206);

[0143] Step 607: same as step 507 (207);

[0144] Steps 608a-608b: same as 208a-208b;

[0145] Steps 609a-609d: same as 209a-209d;

[0146] Step 610: Same as 210;

[0147] Step 611: Same ...

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Abstract

The present invention relates to a method, a network element and a system for establishing a direct tunnel. In the scenario where a terminal moves, the method includes: a target radio network controller (RNC) sends a new gateway GPRS link through a new serving GRPS support node (SGSN) The support node (GGSN) sends the downlink tunnel address assigned by the target RNC to the terminal; the new GGSN assigns an uplink tunnel address to the terminal, and sends the uplink tunnel address to the target RNC through the new SGSN; the aforementioned The two steps are in no particular order. The invention solves the problem of roundabout routing on the basis of realizing the direct connection tunnel.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method for establishing a direct tunnel, a network element (including a radio network controller (RNC), a serving GPRS support node (SGSN) and a gateway GPRS support node (GGSN)) and a system. Background technique [0002] Existing Wideband Code Division Multiple Access (WCDMA) system \ Time Division Code Division Multiple Access (Time Division-Code Division Multiple Access, TDCDMA) is currently an important system and system for realizing service access based on wireless WCDMA / TDCDMA technology method, its network architecture is as figure 1 shown. Including wireless access network, and serving GRPS (General Packet Radio Service, General Radio Packet Service) support node (ServingGPRS Support Node, SGSN), gateway GPRS support node (Gateway GPRS Support Node, GGSN) and terminals and other network elements. Wherein, the radio access network mainly includes a base st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/26H04W28/06H04W76/02
CPCH04W76/22
Inventor 骆文沈炯
Owner 盐城市纺织染整产业园实业开发有限公司
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