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Method and system for acquiring position information of user terminal

A technology of location information and user terminals, which is applied in the field of communication, can solve the problems that location information cannot meet the accuracy requirements of operators for drive test logs, reduce the effectiveness of drive test log measurement, and achieve the effect of reducing dependence and better positioning

Active Publication Date: 2013-03-06
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, due to the use of existing technologies to obtain position information that minimizes the measurement volume in the drive test log, it relies too much on the GNSS system. If the GNSS system is not working, the position information can only be obtained through the method of pilot frequency look-up table, and this method The accuracy of the obtained location information is difficult to meet the accuracy requirements of the operator for the drive test log, thus reducing the effectiveness of the measurement volume of the drive test log

Method used

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  • Method and system for acquiring position information of user terminal
  • Method and system for acquiring position information of user terminal
  • Method and system for acquiring position information of user terminal

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Experimental program
Comparison scheme
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Embodiment 1

[0043]According to an embodiment of the present invention, a method for obtaining location information of a user terminal is provided, which specifically includes: A. An evolved base station sends a control instruction for assisting location information measurement for positioning to the user terminal; B. Receives a response from the user terminal The auxiliary position information measured by the above-mentioned control command.

[0044] Furthermore, in this preferred embodiment, step C is further included: the network manager receives the auxiliary location information and triggers the Evolved Service Mobile Positioning Center to perform positioning according to the auxiliary location information when a trigger condition is met.

[0045] Wherein, the auxiliary location information includes at least one of the following data:

[0046] a) the timing advance of the user terminal and the angle of arrival of the measurement signal; b) the time difference of the positioning refere...

Embodiment 2

[0063] figure 2 It is a schematic flowchart of an embodiment in which the method for obtaining a user terminal in the present invention is applied to the measurement service of the Minimized Drive Test (MDT). The location information of the measured quantity in the measurement log relies too much on the shortcomings of the GNSS system.

[0064] Such as figure 2 As shown, the present embodiment specifically includes the following steps:

[0065] Step 1: The user terminal reports the measurement log of the minimization drive test to the eNB:

[0066] Specifically include:

[0067] When the user terminal is configured to perform a minimum drive test, once the user terminal collects drive test data (such as pilot frequency strength, terminal throughput, etc.), the user terminal needs to embed the following location information into the collected drive test data :

[0068] a) If the terminal has valid GNSS position information at this time, the terminal needs to embed the GN...

Embodiment 3

[0090] image 3 It is a flowchart of an embodiment in which the method for obtaining a user terminal in the present invention is applied to a multimedia broadcast service (Multimedia Broadcast Multicast Service, MBMS);

[0091] Such as image 3 Shown, described embodiment mainly comprises the following steps:

[0092] Step 1: The eNB judges whether it is necessary to trigger the measurement of the assisted location information. In this embodiment, the triggering reason for the eNB to trigger the assisted location information measurement is different from that in Embodiment 2. Specifically, In other words, the triggering reason is triggered by the location requirement of the service forwarded by the eNB. For example, in this embodiment, the MBMS service needs to locate the location of the user terminal, so as to provide personalized services.

[0093] Of course, in some other services, it can also be triggered by other reasons, for example, for those services of calling for ...

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Abstract

The invention discloses a method for acquiring position information of a user terminal. The method includes that A, an evolved node initiates a control instruction for measuring auxiliary position information for positioning to the user terminal; and B, the auxiliary position information measured by the user terminal in response to the control instruction is received. The accurate position information can be acquired via linkage of the user terminals, the evolved node, operation administration and maintenance and an evolved serving mobile location center, accordingly, dependence on position information of a global navigation satellite system is relieved, and the accuracy of the position information is improved. In addition, the invention discloses a system for acquiring the position information of the user terminal.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and system for acquiring location information of a user terminal. Background technique [0002] Minimization Of Drive Tests (MDT) is a new function introduced in the LTE Rel-10 phase. The purpose is to configure common terminals to participate in the drive test through the network side. Drive test refers to the operator's field test of the deployed network (including measuring the strength of cell pilot signals in different geographical locations, broadcast channel coverage and bit error rate, paging success probability, terminal throughput and other parameters). Since the current tests require vehicles equipped with special measuring instruments and manpower to continuously test along the road, this test is called a road test. [0003] The driving force for the minimization of drive testing is to minimize the operator's drive testing costs by allowing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10H04W64/00
CPCG01S5/0036H04W64/00G01S5/00
Inventor 胡南胡臻平崔春风
Owner CHINA MOBILE COMM GRP CO LTD