Method and device for positioning user equipment in switching process

A technology of user equipment and handover process, applied in the field of communication, can solve problems such as poor link quality, long positioning delay, disconnection, etc., and achieve the effect of reducing signaling overhead and shortening positioning delay

Inactive Publication Date: 2013-01-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art: when the above-mentioned E-CID positioning is performed on the UE, the UE may have triggered HO, which means that the link between the serving eNB and the UE The quality is already poor, or even completely disconnected, so the measurement results of Rx-Tx at the UE end cannot be reported to the serving eNB, resulting in unsuccessful E-CID positioning of the UE
[0006] After the UE has successfully switched to the new eNB, the positioning server needs to re-initiate a positioning request to the above new eNB, so a large amount of signaling needs to be added between the eNB and the positioning server, and the positioning delay will be relatively large

Method used

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  • Method and device for positioning user equipment in switching process

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Embodiment 1

[0029] The processing flow of a method for locating a user equipment in a handover process provided by this embodiment is as follows: figure 1 As shown, the following processing steps are included:

[0030] 11. The target base station of the user equipment in the handover process receives the positioning measurement related information of the user equipment sent by the source base station of the user equipment;

[0031] 12. After the user equipment successfully accesses the target base station, the target base station performs positioning measurement on the user equipment according to the positioning measurement related information.

[0032] It can be seen from the technical solutions provided by the above embodiments of the present invention that the source base station sends the location measurement related information of the user equipment to the target base station through the source base station, so that the target base station can immediately locate the user equipment af...

Embodiment 2

[0034] A schematic diagram of an application scenario of a method for positioning a UE provided in this embodiment is as follows figure 2 As shown, the source eNB and the target eNB are connected under the same MME (Mobility Management Entity, Mobility Management Entity), and the MME is connected to the positioning server E-SMLC (Evolved Serving Mobile Location Centre, Evolved Serving Mobile Location Center) that initiates the positioning service of the UE. positioning center), the source eNB interacts with the target eNB through the X2 interface. In this application scenario, the UE is performing E-CID positioning, and then a handover is triggered.

[0035] Based on the above figure 2 In the application scenario shown, the processing flow of a method for positioning a UE provided in this embodiment is as follows image 3 As shown, the following processing steps are included:

[0036] Step 31: The E-SMLC initiates the E-CID positioning of the UE, and sends LPP (Long Term ...

Embodiment 3

[0062] This embodiment provides a target base station, its specific structure is as follows Figure 4 As shown, the following modules are included:

[0063] The positioning measurement related information receiving module 41 is configured to receive the positioning measurement related information of the user equipment sent by the source base station of the user equipment in the handover process;

[0064] The positioning measurement processing module 42 is configured to perform positioning measurement on the user equipment according to the positioning measurement related information after the user equipment successfully accesses the target base station.

[0065] Specifically, the positioning measurement processing module 42 may include:

[0066] The information acquiring module 421 is configured to measure the user equipment according to the positioning measurement related information when the enhanced cell ID positioning method E-CID positioning is performed on the user equip...

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Abstract

The embodiment of the invention provides a method and a device for positioning user equipment in a switching process. The method mainly comprises the following steps that: a target base station of the user equipment in the switching process receives positioning- and measurement-related information of the user equipment sent by a source base station of the user equipment; and the target base station positions and measures the user equipment according to the positioning- and measurement-related information after the user equipment is successfully accessed to the target base station. According to the method and device for positioning the user equipment in the switching process provided by the invention, the user equipment can be positioned and measured immediately after the target base station is successfully accessed to the user equipment, without retriggering a positioning flow of the user equipment once more by a positioning server, and therefore signaling overhead caused by retriggering the positioning flow of the user equipment once more is reduced.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method and device for positioning a UE (User Equipment, user equipment) in a handover process. Background technique [0002] In the wireless network, the HO (handover, handover) of the serving node due to the movement of the UE is a relatively frequent event, especially in the future LTE (Long Term Evolution, long-term evolution))-A system, due to With the introduction of a large number of LPN (Low Power Node, low power nodes) nodes, the HO between the nodes will become more frequent. [0003] "Positioning" is a service for the network side to estimate accurate location information for UEs. It is mainly used in some scenarios related to social security, such as: arresting criminals, guiding escape routes, and so on. Therefore, the occurrence frequency of the positioning service is relatively low. In practical applications, there is a possibility that the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W64/00G01S5/02H04W4/20
CPCH04W64/00H04W36/08H04W4/20
Inventor 肖登坤吴彤崔杰
Owner HUAWEI TECH CO LTD
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