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System for implementing network backward compatibility, and adherence, de-adherence method

A technology of network and user information, applied in the direction of network connection, data exchange details, electrical components, etc., can solve the problem of unsolved backward compatibility, affecting the use of user services in operator network deployment, and unable to realize business processes, etc. The effect of good backward compatibility

Active Publication Date: 2009-02-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] From the above, it can be known that the existing technology does not solve the backward compatibility problem of the evolved network for the UMTS network, and cannot maintain service continuity when the UE moves between the evolved network and the 2G / 3G network, and cannot realize various corresponding services. business processes, such as UE attaching to eMSC, mobility management in idle state, and detachment, etc., which will inevitably affect the deployment of the operator's network and the use of user services

Method used

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  • System for implementing network backward compatibility, and adherence, de-adherence method
  • System for implementing network backward compatibility, and adherence, de-adherence method
  • System for implementing network backward compatibility, and adherence, de-adherence method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] figure 2 It shows the network composition structure of the first network architecture when the UE is located in the home network, including:

[0055] PDN GW202, PCRF203, EMSC204, EMGW205 (evolved Media GateWay, evolved media gateway), HSS206, S-GW207, MME209 and SGSN208, wherein EMSC204 further includes eMGCF2041 module and eMSC / VLR2042 module, EMGW205 further includes eIM-MGW2020 module and e2MGW module.

[0056] Among them, UE201 is connected to eMSC / VLR2042 in EMSC204 through interface L1, which is used for the interaction of CS control plane signaling such as registration of simulated CS domain, location update, mobility management and voice call control signaling.

[0057] EMSC204 is connected to HSS206 through interface C, and is used to request CS domain-related information such as user identity, location data, and filtering policy information from HSS206, and at the same time, according to the received voice call control signaling sent by UE201 through interfa...

Embodiment 2

[0074] Figure 5 It shows the network composition structure of the second network architecture when the UE is located in the home network, including:

[0075] PDN GW502, PCRF503, EMSC504, EMGW505, HSS506, MME507, S-GW508 and SGSN509, wherein EMSC504 further includes eMGCF5041 and eMSC / VLR5042, and EMGW505 further includes eIM-MGW5051 and eMGW5052. Wherein the functions of each part and the mutual connection relationship are similar to those in the first embodiment, the difference is that the EMSC504 and the MME507 are connected through the Gs+ interface (this interface is similar to the Gs interface in 2G / 3G), and this interface is used for connecting the EMSC504 and the MME507. Signaling exchange between MME507, for example: control plane signaling such as handover message, reporting UE location message or attach message, location update, mobility management, etc., and voice call control signaling can also be exchanged through this interface. When call control signaling inte...

Embodiment 3

[0091] Figure 8 Shown is the network composition structure when the UE is located in the home network under the third network architecture, including:

[0092] PCRF803, EMSC804, EMGW805, HSS806, MME807, ServingGateway808 and SGSN809, wherein EMSC804 further includes eMGCF8041 and eMSC / VLR8042, and EMGW805 further includes eIM-MGW8051, eMGW8052 and PDNGW802.

[0093] Among them, EMGW805 includes PDN GW802 entity, which is connected with Serving Gateway808 and PCRF803 respectively. Inside EMGW805, PDN GW802 is also connected with eIM-MGW8051 through SGi interface, which is used to ensure the connectivity of media plane bearer path. The PDN GW802 has the same function as the separate PDN GW in Embodiments 1 and 2, except that in this embodiment, the PDN GW is integrated into the EMGW805, and the PDN GW802 is connected to the PCRF803 through the S7+ interface, and receives the policies issued by the PCRF803 and Execute, establish the required media plane bearer, connect to the e...

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Abstract

The invention discloses a system for achieving network backward compatibility, which comprises a policy and charging rule function entity PCRF, a home subscriber server HSS, an evolved mobile switch center EMSC and an evolved media gateway EMGW. The invention also discloses an adhesion method, which comprises the following steps: transmitting an adhesion request message by a UE to a target MME, and transmitting an updated position confirmation message to the target MME by the HHS after the target MME executes authorization and position updating according to the service state of the UE; acquiring the address information of a target eMSC by the UE, and initially adhering on the target eMSC; and updating a tracking region and the position of the UE if the MME and the eMSC for providing the service change, and reattaching to a new target MME and a new eMSC. The invention also discloses a de-adhesion method. According to the invention, circuit domain service can be continuously used in an evolved network, and backward compatibility can be achieved, thereby maximally utilizing entities in the conventional circuit domain, ensuring smooth transition of system upgrading and protecting the present investment of operators.

Description

technical field [0001] The invention relates to the third-generation mobile communication technology, in particular to a system for realizing network backward compatibility and an attaching and deattaching method. Background technique [0002] At present, with the development of communication technology, the third generation mobile communication technology has become increasingly mature. Universal Mobile Telecommunications System (UTMS) is a third-generation mobile communication system using Wideband Code Division Multiple Access (WCDMA) air interface technology. The communication system has a similar structure, including a radio access network (Radio Access Network, RAN) and a core network (Core Network, CN). Among them, RAN is used to handle all functions related to wireless services, while CN handles all voice calls and data connections in the UTMS system, and implements switching and routing functions with external networks. The CN is logically divided into a circuit s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/22H04Q7/38H04L12/66H04L12/14
CPCH04W60/00
Inventor 段小琴张戬李庆禹吴晓波
Owner HUAWEI TECH CO LTD
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