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Method, system and device for acquiring terminal location information

A technology of location information and terminal location, applied in the field of communication, can solve the problems of increasing time delay, starting long positioning process, unable to verify the cell location, etc.

Active Publication Date: 2016-05-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cell location of the terminal, under normal circumstances, exists in the mobility management entity of the access network, which is the MME in the SAE. However, using the LCS mechanism to obtain the cell location information of the terminal requires a relatively long positioning process, which increases the time Delay
In addition, not all networks deploy LCS. In this case, the IMS service layer will not be able to verify the cell location provided by the terminal

Method used

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  • Method, system and device for acquiring terminal location information
  • Method, system and device for acquiring terminal location information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Figure 4 It is a schematic diagram of the structure of the P-CSCF obtaining cell location information through the access layer according to Embodiment 1 of the present invention. In the structure diagram:

[0079] P-CSCF (Proxy Call Session Control Function, ProxyCallSessionControlFunction) implements the interface function between E-CSCF and LRF, and is used to realize the function of P-CSCF querying location information from LRF. The internal interface between the LRF and the GMLC is an existing technology. The GMLC in this architecture is used to provide cell location information to the LRF and obtain cell location information from the MME.

[0080] based on Figure 4 The architecture diagram of the P-CSCF obtains the cell location information of the UE from the access layer schematic diagram, as shown in Figure 5 shown, including the following steps:

[0081] S501, the P-CSCF receives a session request;

[0082] In order to verify the cell location informatio...

Embodiment 2

[0102] Figure 6 It is a schematic diagram of the structure of the P-CSCF obtaining cell location information through the access layer according to Embodiment 2 of the present invention. In the structure diagram:

[0103] The P-CSCF acts as an LCS client (LCSClient), and is connected to the GMLC through the Le interface, so as to query the cell information of the UE from the GMLC. The GMLC acquires cell location information from the MME.

[0104] based on Figure 6 In the architecture diagram shown, the flow diagram of the P-CSCF obtaining the cell location information of the UE from the access layer is as follows: Figure 7 shown, including the following steps:

[0105] S701, the P-CSCF receives the session request and needs to query the cell location information of the UE;

[0106] S702, the P-CSCF initiates a location query request to the GMLC to query the cell location information of the UE;

[0107] S703. In response to step S703, the GMLC sends a location query requ...

Embodiment 3

[0115] In this embodiment, on the basis of Embodiments 1 and 2, if the P-CSCF always needs to know the latest cell location of the UE, the RAN node may be required to report the cell location of the UE when the cell location of the UE changes.

[0116] Figure 8 The flow chart of reporting the cell location of the UE by the RAN node after the cell location of the UE is changed is described.

[0117] S801, the RAN node detects that the cell location of the UE changes;

[0118] S802, the RAN node reports the cell location information of the UE to the MME;

[0119] S803, the MME reports the cell location information of the UE to the GMLC;

[0120] S804. The GMLC reports the cell location information of the UE to the P-CSCF.

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Abstract

The invention relates to a terminal location information obtaining method, system and device. The method comprises the following steps of: providing district location information of UE (User Equipment) to a location-based service network element actively or according to a search of the location-based service network element by a mobile management network element; and providing the district location information of the UE to an IMS (IP Multimedia Subsystem) network element actively or according to the search of the IMS network element by the location-based service network element. According to the method provided by the invention, the district location information of the terminal can be obtained by the IMS network element without a positioning system.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method, system, and equipment (including mobility management network elements and location service network elements) for acquiring terminal location information. Background technique [0002] IP Multimedia Subsystem (IMS, IPMultimediaSubsystem) is the core of the new generation communication network, and its notable feature is that it adopts the Session Initiation Protocol (SIP, SessionInitiationProtocol) system, communication has nothing to do with access, and it has a variety of media service control functions and bearing capacity separation, separation of call and session, separation of application and service, separation of business and network, and integration of mobile network and Internet services. [0003] A user terminal (UserEquipment, UE) with IMS capability can access the IMS multimedia subsystem through various access networks, such as: System Long Term Evolution...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00H04L29/06
Inventor 李志军谢宝国朱春晖
Owner ZTE CORP
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