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Location service provision method

A technology of location service and server, applied in the field of location service provision, can solve problems such as location service interruption, and achieve the effect of ensuring continuity

Active Publication Date: 2019-01-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0038] In view of this, the present invention provides an improved method for providing location services to solve the problem of UE switching from the source access network to the target access network when the source LRF and the target LRF provide location services for different areas. Issues that may interrupt location services during the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] In this embodiment, the second method is adopted, that is, the source location server acts as a proxy. When the E-CSCF / PSAP performs a location service query, the source location server forwards the location query request to the target location server to achieve location service continuity. sex.

[0100] Figure 8 Be the flow chart of this embodiment, such as Figure 8 As shown, the process for the source location server to act as an agent to realize location service continuity mainly includes the following steps:

[0101] Step S801, the UE conducts an IMS emergency session with the PSAP on the source access network (CS / EPS / GPRS / CDMA2000). During the session, the UE moves to the target access network (CS / EPS / GPRS / CDMA2000). At this time, The UE sends a wireless measurement report to the source access network, and the source access network initiates a session handover to switch the IMS emergency call from the source access network to the target access network.

[0102...

Embodiment 2

[0110] In this embodiment, the first method is adopted. The target location server notifies the E-CSCF (that is, the above-mentioned service network control unit) to update the location server. When the E-CSCF / PSAP performs a location service query, it directly uses the target The location server implements location business continuity.

[0111] Figure 9 Be the flow chart of this embodiment, such as Figure 9 As shown, the process of implementing location service continuity by the target location server notifying the E-CSCF to update the location server mainly includes the following steps:

[0112]Step S901, the UE conducts an IMS emergency session with the PSAP on the source access network (CS / EPS / GPRS / CDMA2000), and during the session, the UE moves to the target access network (CS / EPS / GPRS / CDMA2000), at this time, The UE sends a wireless measurement report to the source access network, and the source access network initiates a session handover to switch the IMS emergency ...

Embodiment 3

[0124] In this embodiment, the first method is adopted. The E-CSCF (that is, the service network control unit) allocates the target LRF according to the target access network address, and uses the target LRF / GMLC to perform location query, so as to realize location service continuity.

[0125] Figure 10 It is the flow chart of this embodiment, such as Figure 10 As shown, the E-CSCF allocates the target LRF according to the target network address, and the process of realizing location service continuity mainly includes the following steps:

[0126] Step S101, the UE conducts an IMS emergency session with the PSAP on the source access network (CS / EPS / GPRS / CDMA2000). During the session, the UE moves to the target access network (CS / EPS / GPRS / CDMA2000). At this time, The UE sends a wireless measurement report to the source access network, and the source access network initiates a session handover to switch the IMS emergency call from the source access network to the target acces...

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Abstract

The invention provides a position service providing method. The position service providing method is used for providing position services for UE after the UE is switched to a target access network from a source access network, and comprises: a source position server receiving a position query request from a sender, the query request carrying the identification of the UE; and the source position server, according to the address of a target position server, triggering the target position server to obtain the position information of the UE. According to the invention, during a session process when the UE is switched to the target access network from the source access network, the continuity of UE position services can be ensured.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a location service providing method. Background technique [0002] The IP Multimedia Core Network Subsystem (IMS for short) is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3GPP for short), which constructs an open and Flexible business environment supports multimedia applications and provides users with rich multimedia services. [0003] IMS is an IP-based telecommunications network architecture and has nothing to do with access technologies, except that it can provide packet access networks such as General Packet Radio Service (GPRS for short) and Wireless Local Area Network (WLAN for short). In addition to services, it can also provide services for mobile cellular networks such as Global System for Mobile communications (GSM for short) and Universal Mobile Telecommunications System (UMTS for short). [0004] Emergency call ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W36/08H04L29/06
Inventor 谢宝国李志军
Owner ZTE CORP