WO2013026349A1

WO2013026349A1 - Method and system for obtaining user terminal location information

Info

Publication number: WO2013026349A1
Application number: PCT/CN2012/079415
Authority: WO
Inventors: 胡南
Original assignee: 中国移动通信集团公司
Priority date: 2011-08-22
Filing date: 2012-07-31
Publication date: 2013-02-28
Also published as: CN102958096A; CN102958096B

Abstract

Disclosed is a method and system for obtaining user terminal location information, comprising: a), an evolved NodeB (eNB ) sends a control command for measuring auxiliary location information for positioning purpose to a user terminal; b), receiving the auxiliary location information measured by the user terminal in response to the control command. The present invention obtains accurate location information via the linkage of the user terminal, the eNB, a network administrator and an evolved serving mobile location center (E-SMLC), thus reducing the dependence on the location information of the global navigation satellite system and improving the location information accuracy. Furthermore, also disclosed is a user terminal location information obtaining system.

Description

Method and system for acquiring location information of user terminal

The present invention relates to the field of communications technologies, and in particular, to a method and system for acquiring location information of a user terminal. Background technique

Minimization Of Drive Tests (MDT) is a new feature introduced in the LTE Rel-10 phase. The purpose is to configure the common terminal to participate in the drive test work through the network side. Road test refers to the operator's field test of the deployed network (including measuring the pilot signal strength of different geographical locations, broadcast channel coverage and bit error rate, paging success probability and terminal throughput, etc.). Since the current tests require vehicles and manpower equipped with dedicated measuring instruments to be tested along the road, this test is called road test.

Minimize the drive test, the driving force is to minimize the operator's drive test cost by letting the ordinary terminal participate in the drive test. At present, 3GPP's research on MDT is mainly divided into two stages:

1. What kind of road test work can be submitted to the ordinary terminal? At present, 3GPP has completed this phase of work; 2. Standardize how ordinary terminals participate in road test work, and work is in progress at this stage.

Among them, in the MDT research, how to obtain the location information of the terminal is a key factor related to whether the minimization of the drive test function can be practical. The current method for obtaining the location information of the road test terminal is:

When the terminal is configured to minimize the drive test, once the terminal collects the drive test data (such as pilot strength, terminal throughput, etc.), the terminal needs to embed the following location information into the collected drive test data: 1 If the terminal has valid GNSS location information at this time, the terminal needs to embed the GNSS location information into the drive measurement volume;

2. If the terminal does not have valid GNSS location information at this time, the terminal needs to report the pilot strength information of up to 6 intra-frequency cells as the auxiliary location information.

Then, when the OAM obtains the drive test log reported by the terminal, the following method is used to obtain the corresponding position information of the measured quantity in the drive test log:

1. If the drive test log contains GNSS location information, OAM can directly use GNSS phase. Off information as location information;

2. If the drive test log does not contain GNSS location information, the OAM will infer the corresponding location information according to the maximum pilot strength of the same frequency neighboring cell carried in the log. The inference method is that the OAM usually maintains a piece of information. The mapping table between the cell pilot and the geographic location, and then the OAM can look up the table according to the values of the pilot strengths of different neighboring cells, and the location information can be obtained.

However, since the existing information is used to minimize the positional information of the measurement volume in the drive test log, the GNSS system is too dependent on the GNSS system. If the GNSS system is not working, the location information can only be obtained by the pilot lookup table. The accuracy of the location information obtained by the method is difficult to meet the operator's accuracy requirements for the drive test log, thereby reducing the effectiveness of the drive test log measurement. Summary of the invention

The present invention is directed to the above disadvantages, and provides a method for acquiring location information of a user terminal, which can obtain location information of a user terminal without using a GNSS system, thereby reducing the dependence on the GNSS system. In addition, the present invention also discloses a system for acquiring location information of a user terminal, an evolved base station, and a network management system.

According to a first object of the present invention, the present invention provides a method for acquiring location information of a user terminal, including the following steps:

A. The evolved base station initiates a control instruction for the auxiliary location information measurement for positioning to the user terminal. B. Receive the auxiliary location information measured by the user terminal in response to the control instruction.

Further, the preferred method further includes: Step C: The network management system receives the auxiliary location information and triggers the evolved service mobile positioning center to perform positioning according to the auxiliary location information when the trigger condition is met.

Further, the preferred method is that the auxiliary location information includes at least one of the following data: a) a timing advance of the user terminal and an arrival angle of the measurement signal;

b) The time difference of the positioning reference signals of at least 3 cells measured by the user terminal.

After the above technical solution is adopted, the network side can select whether to trigger the user terminal to collect the auxiliary location information for auxiliary positioning, thereby performing data collection and accurate positioning according to the requirements of the network side; This method can mitigate the existing methods for Global Navigation Satellite System (GNSS) by locating the network-side evolved service mobile positioning center. Dependency; and, the method can better achieve the effect of precise positioning.

Further, the preferred method is that the step A includes:

The evolved base station receives the measurement log of the minimized drive test reported by the user terminal;

The evolved base station reads the measurement log of the minimized drive test and initiates a control command for the auxiliary location information measurement to the user terminal when the trigger condition is met.

Further, the preferred method is that the evolved base station triggers a control instruction for initiating the measurement of the auxiliary location information to the user terminal according to the positioning requirement of the service forwarded by the evolved base station;

The positioning of the evolved service mobile positioning center is triggered by the network management device according to the service that allows the evolved base station to perform positioning.

That is, in the present invention, the assisted positioning process may be selected by the evolved base station according to the measurement log of the minimized drive test to perform auxiliary positioning; or may be triggered by the positioning requirement of the service forwarded by the evolved base station, Therefore, the method for obtaining the location information of the user terminal of the present invention can be applied not only to minimize the road test, but also to other services that require the network side to know the location information of the terminal.

According to a second object of the present invention, the present invention provides a system for acquiring location information of a user terminal, including: an evolved base station, configured to initiate an auxiliary location information measurement instruction to a user terminal, and receive auxiliary location information from the user terminal. The network management system is configured to receive the auxiliary location information reported by the evolved base station, and trigger the evolved service mobile positioning center to perform auxiliary positioning after the trigger condition is met; the evolved service mobile positioning center is configured to perform auxiliary positioning according to the auxiliary location information. Get the positioning results.

Preferably, the user terminal is further configured to report the positioning auxiliary location information to the evolved base station in response to the measurement instruction of the auxiliary location information initiated by the evolved base station.

In addition, according to the purpose of the present invention, the present invention provides an evolved base station, including: a sending unit, a control instruction for initiating a secondary location information policy for positioning to a user terminal; and a receiving unit, configured to receive a response of the user terminal The auxiliary position information measured by the control command.

In addition, in accordance with the purpose of the present invention, the present invention provides a network management system, including: a receiving unit, configured to receive auxiliary location information reported by an evolved base station and/or a measurement log that minimizes drive test; Storing a condition for triggering auxiliary positioning; an extracting unit for extracting auxiliary position information and/or minimizing auxiliary position information in a measurement log of the drive test; and a control unit for satisfying The sending unit sends the auxiliary location information and the positioning instruction under the trigger condition of the policy library unit, and the sending unit is configured to send the auxiliary location information and the positioning instruction to the evolved service mobile positioning center.

Other features and advantages of the invention will be set forth in the description which follows, The objectives and other advantages of the invention will be realized and attained by the <RTI DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be a part of the description of the invention. In the drawings: FIG. 1 is a flowchart of a method for obtaining location information of a user terminal according to the present invention;

2 is a flow chart of one embodiment of a method for obtaining location information of a user terminal in the method of minimizing a drive test MDT measurement service;

3 is a flow chart of an embodiment of a method for obtaining location information of a user terminal in a multimedia multicast broadcast MBMS service;

4 is a schematic diagram of a system for obtaining location information of a user terminal according to the present invention.

FIG. 5 is a schematic structural diagram of an evolved base station according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a network management system according to an embodiment of the present invention. detailed description

The preferred embodiments of the present invention are described with reference to the accompanying drawings, and the preferred embodiments of the present invention are intended to illustrate and explain the invention.

Before introducing the specific technical solutions of the present invention, some abbreviations in the embodiments of the present invention are explained for convenience of explanation:

MDT (Minimization of Drive Tests), GNSS (Global Navigation Satellite System), Global Navigation Satellite System (GNSS), eNB ( evolved Node B), evolved base station; UE (user equipment), user terminal; RRC (Radio Resource Control): Radio Resource Control Protocol; AOA AngleofArrival), measurement signal arrival angle; TA (Timing Advance), time advance; 0 AM (OperationAdministration and Maintenance) E-SMLC (Evolved Serving Mobile Location Center), Evolution Service Mobile Location Center; MBMS (Multimedia Broadcast Multicast Service) Multimedia Multicast Broadcast Service.

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. Method embodiment one:

According to an embodiment of the present invention, a method for acquiring location information of a user terminal is provided, which specifically includes: A. The evolved base station initiates a control instruction for the auxiliary location information measurement for positioning to the user terminal; B. receiving the user terminal response The auxiliary position information measured by the control command.

Moreover, in the preferred embodiment, the method further includes: Step C: The network management system receives the auxiliary location information and triggers the evolved service mobile location center to perform positioning according to the auxiliary location information when the trigger condition is met.

The auxiliary location information includes at least one of the following data:

a) the timing advance of the user terminal and the angle of arrival of the measurement signal; b) the time difference of the positioning reference signals of the at least 3 cells measured by the user terminal.

In this embodiment, the auxiliary location information measurement instruction is initiated by the network side to the user terminal, and the auxiliary location information reported by the network side by the network side is used for auxiliary positioning, and the global navigation satellite system may not be used in the whole process. There is also no need to resort to the positioning function of the user terminal, whereby the reliance on the global navigation satellite system can be alleviated, and at the same time, the location information is not required to be acquired by the method of pilot look-up; and the present invention relies on the assistance of the network side. The positioning system enables the technical effect of precise positioning.

1 is a flowchart of an embodiment of a method for obtaining location information of a user terminal according to the present invention. According to FIG. 1, the embodiment specifically includes the following steps:

S101: The evolved base station (eNB) initiates an auxiliary location information measurement instruction to the user terminal according to the set trigger condition.

S102: The user terminal responds to the foregoing instruction and performs auxiliary location information measurement.

S103: The user terminal transmits the auxiliary location information to the evolved base station, and the evolved base station sends the auxiliary location information to an operation management (OAM);

S104: The network management system extracts the data and determines whether it is required to trigger an evolved service mobile positioning. Evolved Serving Mobile Location Center (E-SMLC).

Where, if the trigger condition is met, Bay iJ:

S105: The network management device sends the auxiliary location information to the evolving service mobile positioning center. S106: The evolving service mobile positioning center performs auxiliary positioning according to the auxiliary location information. According to the embodiment, the auxiliary location information includes at least one of the following data: a) Timing Advance (TA) of the terminal and an Angle of Arrival (AO A ) of the measurement signal;

b) The time difference of the positioning reference signals of at least 3 cells measured by the terminal.

The evolved service mobile positioning center may determine the distance between the user terminal and the base station by using the measured TA, and determine the orientation of the user terminal at the base station by using the AOA, so that the location information of the user terminal can be accurately determined;

Alternatively, the location information of the user terminal is accurately determined according to the time difference of the positioning reference signals of the three cells measured by the user terminal.

Therefore, the solution only needs to perform the auxiliary positioning control by using the trigger condition set by the evolved base station and/or the trigger condition set by the network management, so as to implement flexible control of the method for acquiring the location information of the user terminal on the network side. Moreover, the positioning method has higher precision and a wider application range. Method Embodiment 2:

2 is a schematic flowchart of an embodiment of a method for obtaining location information of a user terminal, which is applied to a measurement service for minimizing a drive test (MDT). In this embodiment, the method is mainly used to make up the prior art. The lack of location information in the minimization of the measurement volume in the drive test log depends on the shortcomings of the GNSS system.

As shown in FIG. 2, the following steps are specifically included in this embodiment:

Step 1: The user terminal reports the measurement log of the minimized drive test to the evolved base station:

Specifically include:

When the user terminal is configured to minimize the drive test, once the user terminal collects the drive test data (such as pilot strength, terminal throughput, etc.), the user terminal needs to embed the following location information into the collected drive test data. Among: a) If the terminal has valid GNSS location information at this time, the terminal needs to embed the GNSS location information into the measurement volume of the drive test;

b) If the terminal does not have valid GNSS location information at this time, the terminal needs to report pilot strength information of up to 6 intra-frequency cells as the auxiliary location information.

Step 2: The evolved base station receives the measurement log of the minimized drive test reported by the user terminal, and determines whether the measurement of the auxiliary location information needs to be triggered. In this embodiment, the criteria for determining the trigger of the evolved base station may be one or a combination of the following or other:

a) there is no global navigation satellite system location information in the measurement log of the minimized drive test reported by the user terminal;

b) need to perform secondary positioning of the GNSS location information in the measurement log of the minimized drive test;

c) the number of cells corresponding to the pilot strength in the measurement log of the minimized drive test reported by the terminal is less than n, where n is a natural number;

d) the network load of the evolved base station is light;

The service load of the user terminal is light.

Step 3: If the evolved base station triggers the measurement of the auxiliary location information, the evolved base station controls the user to perform the auxiliary location information measurement by using a Radio Resource Control (RRC) control signaling, where, in this embodiment, The auxiliary location information includes one or several groups of the following sets of parameters:

a) the timing advance of the terminal (TA, the parameters used in the uplink peer) and the AOA information (the eNB can obtain the incoming direction of the UE through this information and the smart antenna);

Step 4: The user terminal sends the measured auxiliary location information to the evolved base station by using a RRC signaling;

Step 5: The evolved base station adds the auxiliary location information obtained by the user terminal to the minimization of the drive test log.

Step 6: The evolved base station sends the drive test log of the minimized drive test including the auxiliary location information to the network management device;

Step 7: The network management system determines whether to trigger the positioning after receiving the road test log of the minimization drive test Function, the trigger condition may be one or more of the following:

a) There is no global navigation satellite system location information in the log information, but it contains auxiliary location information; b) The measurement volume corresponding to the drive test log that minimizes the drive test is more important. Therefore, the drive test log for minimizing the drive test needs to be performed. Sub-precise positioning.

Then, after satisfying any trigger condition, the network management device triggers the road test day auxiliary positioning function, and extracts the auxiliary location information from the road test log of the minimized drive test, and sends the auxiliary location information to the evolved service mobile positioning center. .

Step 9: The evolved service mobile positioning center calculates location information according to the foregoing auxiliary location information, and sends the information to the network management.

Step 10: The network management device adds the location information returned by the evolved service mobile positioning center to the path test log of the minimized drive test as the location information, and deletes the path test log that is originally minimized in the drive test. Auxiliary location information, complete the above positioning process.

After the above technical solution is adopted, the present invention not only has the advantages of the first embodiment, but also can deviate from the limited function of the existing positioning method for the mobile phone terminal, that is, the low positioning function for those without the global navigation satellite system. The mobile phone can also be used to complete the technical purpose of terminal road test data positioning. Method embodiment three:

3 is a flowchart of an embodiment of a method for acquiring a user terminal according to the present invention, which is applied to a Multimedia Broadcast Multicast Service (MBMS). As shown in FIG. 3, the embodiment mainly includes the following steps:

Step 1: The evolved base station determines whether the measurement of the auxiliary location information needs to be triggered. In this embodiment, the triggering reason for triggering the auxiliary location information measurement by the evolved base station is different from the triggering reason of the second embodiment. For example, the triggering reason is triggered by the positioning requirement of the service forwarded by the evolved base station. For example, in this embodiment, the MBMS service needs to locate the location of the user terminal to provide a personalized service.

Of course, in other services, it can also be triggered by other reasons. For example, for those services that call for help or alarm, the function can also be triggered.

Step 2: The evolved base station passes the radio resource after triggering the measurement of the auxiliary location information The source control protocol control signaling controls the user terminal to perform auxiliary location information measurement. In this step, the above-described auxiliary position information is the same as that of the second embodiment.

Step 3: The user terminal sends the measured auxiliary location information to the evolved base station by using a radio resource control protocol control signaling;

Step 4: The evolved base station reports the auxiliary location information to the network management system.

Step 5: The network management system receives the foregoing auxiliary location information, and determines whether the auxiliary positioning function is triggered. In this embodiment, after receiving the positioning request sent by the evolved base station, the network management device triggers the reason and the trigger. The trigger for the first step is the same. Generally, in a specific embodiment, a trigger policy database may be set in the network management tube, and the policy database stores those applications that can allow the location function to be triggered or the location information of the user terminal to be obtained.

Step 6: If the network management triggers the positioning function, the auxiliary location information will be sent to the evolved service mobile positioning center;

Step 7: The evolving service mobile positioning center calculates a positioning result according to the auxiliary location information, and sends the result to the network management.

Step 8: The network management system sends the positioning result fed back by the evolved service mobile positioning center to the related evolved base station as the location result information, thereby completing the positioning.

In this embodiment, the auxiliary positioning trigger is performed by the service forwarded by the evolved base station, thereby expanding the method for locating the function to various services having the positioning service requirement, so that the positioning function of the user terminal is larger. The extension, and the same does not require the user terminal to install the positioning software, or the user terminal has the positioning capability, and has the technical advantage of wide application range. System embodiment one:

The system of the present invention is described in detail below.

4 is a schematic structural diagram of an embodiment of a system of the present invention, as shown in the following figure:

The system for obtaining location information of a user terminal includes:

An evolved base station, configured to initiate an auxiliary location information measurement instruction to the user terminal, receive the auxiliary location information from the user terminal, and report the information to the network management device; the network management device is configured to receive the auxiliary location information reported by the evolved base station, and after the trigger condition is met, Triggering an evolution service mobile positioning center for assisted positioning; an evolving service mobile positioning center for assisting positioning based on auxiliary location information to obtain Bit result.

In addition, in a preferred embodiment, the user terminal further includes, in response to the measurement instruction of the auxiliary location information sent by the evolved base station, reporting the auxiliary location information for positioning to the evolved base station.

The user terminal specifically includes: a receiving unit, configured to receive an auxiliary location information measurement instruction from the evolved base station; a measurement unit, configured to collect and generate auxiliary location information and/or minimize measurement data of the drive test; And a unit, configured to send the auxiliary location information and/or the drive test log that minimizes the drive test to the evolved base station.

More specifically, referring to FIG. 5, in the embodiment, the evolved base station includes: a receiving unit, which receives auxiliary location information sent by the user terminal and/or a measurement log that minimizes drive test; , for storing conditions for triggering auxiliary position information measurement;

a control unit, configured to generate a control instruction sent to the user terminal under a trigger condition that satisfies the policy library unit;

And a sending unit, configured to send the RRC control command to the user terminal, and send the received auxiliary location information and/or the measurement log of the minimized drive test to the network management.

And, in a preferred embodiment, the evolved base station further includes:

And a merging unit, configured to merge the auxiliary location information into the measurement log of the minimized drive test.

More specifically, referring to FIG. 6, the network management system includes:

a receiving unit, configured to receive auxiliary location information reported by the evolved base station and/or a measurement log that minimizes the measurement; a policy library unit, configured to store a condition for triggering the auxiliary positioning;

a control unit, configured to control the sending unit to send the auxiliary location information and the positioning instruction under the trigger condition that satisfies the policy library unit;

And an extracting unit, configured to extract the auxiliary location information and/or minimize the auxiliary location information in the measurement log of the drive test; and the sending unit is configured to send the auxiliary location information and the positioning instruction to the evolved service mobile positioning center.

More specifically, in this embodiment, the evolved mobile positioning center includes: a receiving unit, configured to receive auxiliary location information from the network management; a positioning unit, configured to acquire a positioning result according to the auxiliary location information; The unit is configured to send the positioning result to the network management system or send it to the evolved base station through the network management system. According to the related description of the first to third embodiments, the receiving unit in the evolved base station is further configured to receive the positioning result from the network management. And the receiving unit in the network management system is further configured to receive the positioning result from the evolving service mobile positioning center; the sending unit of the network management unit is further configured to send the positioning result sent by the evolving service mobile positioning center.

In addition, in a preferred embodiment, the network management system further includes:

a merging unit, configured to merge the positioning result into a measurement log that minimizes drive test.

The system of this embodiment has all the advantages of the first, second and third embodiments of the method, that is to say, the invention can be located without using GNSS for positioning, and when the eNB of the network side needs to locate the service, The auxiliary location information request is initiated to the user terminal, and the E-SMLC positioning is activated by the OAM control, thereby overcoming the shortcomings of the existing positioning method that rely too much on the GNSS system, and the positioning accuracy is higher, and the scope of application is more Wide range, with good technical results.

It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for obtaining location information of a user terminal, comprising:

The method for obtaining location information of a user terminal according to claim 1, further comprising: step C: receiving, by the network management, the auxiliary location information, and triggering an evolved service mobile location center according to the trigger condition Auxiliary location information for positioning.

The method for obtaining location information of a user terminal according to claim 1 or 2, wherein the auxiliary location information comprises one or more of the following:

a) the timing advance of the terminal and the angle of arrival of the measurement signal;

The method for obtaining location information of a user terminal according to claim 1 or 2, wherein the step A specifically includes:

The evolved base station reads the measurement log of the minimized drive test and initiates a control instruction for assisting position information measurement to the user terminal when the trigger condition is met.

The method for obtaining location information of a user terminal according to claim 4, wherein the measurement log of the minimized drive test includes terminal drive test data collected by the user and embedded in the measurement set. Terminal location information in terminal drive test data;

The terminal drive test data includes at least pilot strength and/or terminal throughput;

The terminal location information includes at least global navigation satellite system location information or pilot strength information of up to six intra-frequency cells.

The method for acquiring location information of a user terminal according to claim 5, wherein the condition that the evolved base station triggers the auxiliary positioning measurement instruction includes one or more of the following: a) reporting the user terminal There is no global navigation satellite system location information in the measurement log of the minimized drive test;

b) secondary positioning of the global navigation satellite system position information in the measurement log of the minimized drive test is required; C) The number of cells corresponding to the pilot strength in the measurement log of the minimized drive test reported by the terminal is less than n, where n is a natural number;

d) the network load of the evolved base station is lighter;

The service load of the user terminal is light.

The method for obtaining location information of a user terminal according to claim 3, wherein the step C further comprises:

The evolved base station adds the auxiliary location information reported by the user terminal to the measurement log of the minimization drive test, and sends the measurement log including the auxiliary location information to the network management; C2, the network management extracts the trigger condition The auxiliary location information is sent to the evolved service mobile location center.

The method for obtaining location information of a user terminal according to claim 7, wherein the condition that the network management triggers the evolved service mobile positioning center to perform auxiliary positioning includes one or a combination of the following:

a) The measurement log of the minimized drive test does not have GNSS location information, but contains auxiliary location information;

b) The GNSS position information in the measurement log of the minimized drive test needs to be located twice.

The method for obtaining location information of a user terminal according to claim 7 or 8, wherein the positioning result of the evolved service mobile positioning center is added to the measurement of the minimized drive test in the network management.

The method for obtaining the location information of the user terminal according to claim 1 or 2, wherein, in the step A, the method includes: the evolved base station triggers the location according to the location requirement of the service forwarded by the evolved base station The user terminal initiates a control instruction for assisting location information measurement.

The method for obtaining location information of a user terminal according to claim 10, wherein, in step C, the evolving service mobile positioning center performs positioning by the network management device according to the allowed evolved base station. Business to trigger.

The method for obtaining location information of a user terminal according to claim 11, wherein the positioning result of the evolved service mobile positioning center is distributed by the evolved service mobile positioning center to the evolved base station through the network management. 13. A system for obtaining location information of a terminal, comprising:

The evolved base station is configured to initiate an auxiliary location information measurement instruction to the user terminal, and receive the auxiliary location information reported by the user terminal, and send the information to the network management system;

The network management system is configured to receive the auxiliary location information reported by the evolved base station, and trigger the evolved service mobile positioning center to perform auxiliary positioning after the trigger condition is met;

The evolved service mobile positioning center is configured to perform auxiliary positioning according to the auxiliary location information to obtain a positioning result.

The system for acquiring location information of a terminal according to claim 13, further comprising: a user terminal, configured to respond to the measurement instruction of the auxiliary location information initiated by the evolved base station, and report to the evolved base station Auxiliary location information for positioning.

The system for acquiring location information of a terminal according to claim 13 or 14, wherein the user terminal further comprises:

a receiving unit, configured to receive an auxiliary location information measurement instruction from the evolved base station; a measurement unit, configured to collect and generate auxiliary location information and/or a drive test log that minimizes drive test; and a sending unit, configured to: The location information and/or the drive test log that minimizes the drive test is sent to the evolved base station.

16. An evolved base station, comprising:

And a sending unit, configured to send a control instruction for the auxiliary location information measurement for positioning to the user terminal, and a receiving unit, configured to receive the auxiliary location information measured by the user terminal in response to the control instruction.

17. The evolved base station of claim 16 wherein:

The receiving unit is further configured to receive a measurement log of the minimized drive test sent by the user terminal, where the sending unit is further configured to send the received auxiliary location information and/or the measurement log of the minimized drive test to the network management .

The evolved base station according to claim 16 or 17, further comprising: a policy library unit, configured to store a condition for triggering the measurement of the auxiliary location information;

a control unit, configured to generate, sent to the user terminal, under a trigger condition that satisfies the policy library unit a receiving unit, configured to receive auxiliary location information and/or a minimized path policy library unit reported from the evolved base station, and configured to store a condition for triggering the assisted positioning;

An extracting unit, configured to extract auxiliary location information and/or minimize auxiliary location information in a measurement log of the drive test;

And a sending unit, configured to send the auxiliary location information and the positioning instruction to the evolved service mobile positioning center.

20. The network management device of claim 19, wherein

The receiving unit is further configured to receive a positioning result from an evolving service mobile positioning center, where the sending unit is further configured to send a positioning result that is sent by the evolving service mobile positioning center.

The network management system according to claim 19 or 20, further comprising: a merging unit, configured to merge the positioning result into the measurement log of the minimization drive test.