WO2016023392A1

WO2016023392A1 - Method, apparatus and terminal for acquiring assisted positioning information

Info

Publication number: WO2016023392A1
Application number: PCT/CN2015/080180
Authority: WO
Inventors: 崔潮; 杨昕
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-08-14
Filing date: 2015-05-29
Publication date: 2016-02-18
Also published as: CN105372679A

Abstract

A method, an apparatus and a terminal for acquiring assisted positioning information. The method comprises: determining that an anomaly occurs in the state of assisted positioning information of a global navigation satellite system (GNSS) device of a terminal (S102), and acquiring assisted positioning information of a GNSS device of a neighboring terminal from the neighboring terminal supporting communication with the terminal (S104). The method solves the problems that the way of acquiring assisted positioning information in the prior art is relatively complicated, the time consumption is long and the success rate is low, thereby improving the efficiency of assisted positioning information acquisition.

Description

Method, device and terminal for assisting positioning information acquisition

Technical field

The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a terminal for assisting acquisition of positioning information.

Background technique

At present, location service has become one of the most commonly used and most dependent services in people's daily life. In order to provide users with better location services, various location service technologies have emerged, such as Advanced Forward Link Trilateration (AFLT), CELL ID (Cell Identity), time difference positioning (Time). Difference Of Arrival (referred to as TDOA), Enhanced Observed Time Difference (EOTD), Observed Time Difference Of Arrival (OTDOA), Global Navigation Satellite System , referred to as GNSS). The above location service technologies have their own strengths, and the positioning speed and accuracy are two important indicators to measure the advantages and disadvantages of positioning technology, and two very important indicators that affect the user experience.

Among the various location service technologies mentioned above, GNSS positioning is the most accurate.

GNSS positioning needs to capture the GNSS satellite first, then download the navigation message from the captured GNSS satellite, and then calculate the coordinate position of the GNSS satellite and the distance between the device and the device to be located according to the navigation message. When the coordinates of the four GNSS satellites are known After the distance between the device and the device to be located, the three-dimensional coordinate position of the device to be positioned and the clock difference with the GNSS satellite can be calculated. After the three-dimensional coordinate position of the device to be positioned is calculated, the precise position of the positioning terminal in the earth can be known by coordinate conversion and combining the Geographic Information System (GIS).

In theory, the download of the universal minimum navigation message set takes 18 seconds. However, in actual use, due to the weak satellite signal, the bit error rate of the navigation message received by the device to be located is high, the movement of the device to be positioned and the navigation satellite causes the navigation message to be interrupted, and the environment in which the device to be located is in poor condition. The reasons for the poor reception capability of the terminal to be located may cause the GNSS positioning time to be longer, generally more than one minute, or even unable to locate.

The emergence of A-GNSS technology (Assisted GNSS) is precisely to solve the problem of long GNSS positioning time. A-GNSS is a way to obtain navigation messages or predictive navigation messages, positioning models, etc. from a remote server over a network. The method of downloading from satellite. Since the speed of obtaining navigation messages from a remote server over the network is much faster than downloading navigation messages from GNSS satellites, the purpose of speeding up the positioning is achieved.

The existing auxiliary positioning information acquisition technology has the following disadvantages:

1, more complicated. Different networks have different protocols, and for some networks such as TD-SCDMA, most auxiliary positioning servers have compatibility issues.

2. The success rate is low. In the laboratory environment, the success rate of navigation messages is about 80%, and the success rate of pre-test navigation messages is lower (about 33% for mobile GSM, 50% for mobile TD-SCDMA, and about 75% for mobile TDD-LTE). It may be lower during actual use.

3. Consumption of traffic. The data service needs to be activated to obtain auxiliary positioning information from the remote server.

4. Pre-test ephemeris data is poorly compatible in different positioning devices.

Aiming at the problem that the acquisition method of the auxiliary positioning information in the prior art is complicated, the time is long, and the success rate is low, an effective solution has not been proposed yet.

Summary of the invention

The embodiment of the invention provides a method, a device and a terminal for acquiring auxiliary positioning information, so as to at least solve the problem that the acquisition method of the auxiliary positioning information in the related art is complicated, time-consuming and low in success rate.

According to an aspect of an embodiment of the present invention, a method for assisting acquisition of positioning information includes: determining that an abnormality of a state of auxiliary positioning information of a global satellite navigation system GNSS device of a terminal occurs; and supporting a neighboring terminal that communicates with the terminal Acquiring the auxiliary positioning information of the GNSS device of the neighboring terminal.

Preferably, the obtaining the auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal that supports the communication with the terminal includes: sending, to the neighboring terminal, auxiliary positioning information for requesting acquisition of the GNSS device of the neighboring terminal And a request message, where the request message carries indication information for indicating that the neighboring terminal detects the auxiliary positioning information before sending the auxiliary positioning information to the terminal.

Preferably, obtaining the auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal that supports the communication with the terminal, comprising: sending a detection message to the at least two neighboring terminals, wherein the detecting message is used to The quality of the auxiliary positioning information of the GNSS device in the two neighboring terminals is detected; and the detection result obtained by detecting and acquiring the auxiliary positioning information of the GNSS device in the at least two neighboring terminals is selected, and a neighbor with the best quality of the detection result is selected. Terminal: acquiring the auxiliary positioning information from the selected neighboring terminal.

Preferably, the auxiliary positioning information of the GNSS device of the neighboring terminal is acquired from a neighboring terminal supporting communication with the terminal by at least one of the following: Bluetooth, near field communication, and data line.

Preferably, after acquiring the auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal that supports the communication with the terminal, the method further includes: performing auxiliary positioning according to the acquired auxiliary positioning information of the GNSS device of the neighboring terminal.

According to another aspect of the embodiments of the present invention, an apparatus for assisting acquisition of positioning information is provided, including: a determining module, configured to determine that an abnormality occurs in a state of auxiliary positioning information of a global satellite navigation system GNSS device of the terminal; acquiring a module, setting Acquiring positioning information of the GNSS device of the neighboring terminal is obtained from a neighboring terminal supporting communication with the terminal.

Preferably, the obtaining module includes: a first sending unit, configured to send, to the neighboring terminal, a request message for requesting acquiring auxiliary positioning information of a GNSS device of the neighboring terminal, where the request message carries And indication information indicating that the neighboring terminal detects the auxiliary positioning information before transmitting the auxiliary positioning information to the terminal.

Preferably, the obtaining module further includes: a second sending unit, configured to send a detection message to the at least two neighboring terminals, wherein the detecting message is used for assisting positioning of the GNSS devices in the at least two neighboring terminals The quality of the information is detected; the selecting unit is configured to select a neighboring terminal with the highest quality of the detection result according to the detection result obtained by detecting the auxiliary positioning information of the GNSS device in the at least two neighboring terminals; acquiring unit, setting The auxiliary positioning information is obtained from the selected neighboring terminal.

Preferably, the device further includes: an auxiliary positioning module, configured to perform auxiliary positioning according to the acquired auxiliary positioning information of the GNSS device of the neighboring terminal.

According to another aspect of an embodiment of the present invention, there is also provided a terminal comprising the above apparatus.

According to the embodiment of the present invention, the state of the auxiliary positioning information of the GNSS device of the global satellite navigation system that determines the terminal is abnormal; and the auxiliary positioning information of the GNSS device of the neighboring terminal is obtained from the neighboring terminal that supports communication with the terminal, and the solution is solved. In the prior art, the acquisition method of the auxiliary positioning information is complicated, the problem of long time consumption and low success rate, and the efficiency of acquiring the auxiliary positioning information is improved.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flowchart of a method for assisting acquisition of positioning information according to an embodiment of the present invention;

2 is a block diagram of an apparatus for assisting acquisition of positioning information according to an embodiment of the present invention;

3 is a block diagram 1 of an apparatus for assisting acquisition of positioning information in accordance with a preferred embodiment of the present invention;

4 is a block diagram 2 of an apparatus for assisting acquisition of positioning information in accordance with a preferred embodiment of the present invention;

FIG. 5 is a block diagram 3 of an apparatus for assisting positioning information acquisition according to a preferred embodiment of the present invention; FIG.

6 is a block diagram 1 of a specific implementation manner of a method for assisting positioning information acquisition according to a preferred embodiment of the present invention;

7 is a block diagram 2 of a specific embodiment of a method for assisting acquisition of positioning information in accordance with a preferred embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the embodiment, a method for assisting the acquisition of the positioning information is provided. FIG. 1 is a flowchart of a method for acquiring the positioning information according to the embodiment of the present invention. As shown in FIG. 1 , the process includes the following steps:

Step S102, determining that the state of the auxiliary positioning information of the global satellite navigation system GNSS device of the terminal is abnormal;

Step S104: Acquire auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal that supports communication with the terminal.

Through the above steps, determining that the state of the auxiliary positioning information of the global satellite navigation system GNSS device of the terminal is abnormal, and acquiring the auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal supporting the communication with the terminal, compared with related technologies Only the auxiliary positioning information can be obtained from the terminal itself, which not only effectively solves the problem that the acquisition method of the auxiliary positioning information in the related technology is complicated, takes a long time, and has a low success rate, thereby improving the efficiency of acquiring the auxiliary positioning information.

As a preferred implementation, the terminal sends a request message for requesting the acquisition of the auxiliary positioning information of the GNSS device of the neighboring terminal to the neighboring terminal, where the request message carries the indication information, where the indication information is used to indicate that the neighboring terminal is in the direction The auxiliary positioning information is detected before the terminal sends the auxiliary positioning information, and the terminal is adjacent. After receiving the request message, the terminal detects its own auxiliary positioning information. The terminal receives the request message from the neighboring terminal, so that the terminal receives the accuracy of the auxiliary positioning information sent by the neighboring terminal.

As a preferred implementation, the detection message is sent to the at least two neighboring terminals, where the detection message is used to detect the quality of the auxiliary positioning information of the GNSS device in the at least two neighboring terminals; The auxiliary positioning information of the GNSS equipment in the neighboring terminals is detected and obtained, and a neighboring terminal with the best quality of the detection result is selected; the auxiliary positioning information is obtained from the selected neighboring terminal, thereby effectively shortening the auxiliary positioning of the GNSS equipment. The acquisition time of the information is compared with the quality of the auxiliary positioning information in the plurality of adjacent terminals, thereby ensuring that the quality of the auxiliary positioning information acquired by the terminal is relatively good, and the auxiliary positioning information can be more accurately determined according to the obtained auxiliary positioning information.

Preferably, the auxiliary positioning information of the GNSS device of the neighboring terminal is obtained from a neighboring terminal that supports communication with the terminal, by at least one of the following: Bluetooth, near field communication, and data line.

As a preferred implementation manner, after acquiring the auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal that supports communication with the terminal, performing auxiliary positioning according to the obtained auxiliary positioning information of the GNSS device of the neighboring terminal, by using the foregoing The step shortens the time for acquiring the auxiliary positioning information of the GNSS device, thereby speeding up the auxiliary positioning according to the auxiliary positioning information of the GNSS device.

According to another aspect of the present invention, an apparatus for assisting the acquisition of positioning information is provided. The apparatus is configured to implement the above-described embodiments and preferred embodiments, and the detailed description thereof has been omitted. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

2 is a block diagram of an apparatus for assisting acquisition of positioning information according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes: a determining module 22, an obtaining module 24, and each module is described below.

The determining module 22 is configured to determine that the state of the auxiliary positioning information of the global satellite navigation system GNSS device of the terminal is abnormal;

The obtaining module 24 is configured to acquire auxiliary positioning information of the GNSS device of the neighboring terminal from a neighboring terminal that supports communication with the terminal.

FIG. 3 is a block diagram of an apparatus for assisting acquisition of positioning information according to a preferred embodiment of the present invention. As shown in FIG. 3, the obtaining module 24 includes:

The first sending unit 32 is configured to send, to the neighboring terminal, a request message for requesting acquisition of the auxiliary positioning information of the GNSS device of the neighboring terminal, where the request message carries a message indicating that the neighboring terminal is sending the terminal to the terminal The indication information for detecting the auxiliary positioning information before assisting the positioning information.

4 is a block diagram 2 of an apparatus for assisting acquisition of positioning information according to a preferred embodiment of the present invention. As shown in FIG. 4, the obtaining module 24 includes:

The second sending unit 42 is configured to send a detection message to the at least two neighboring terminals, where the detection message is used to detect the quality of the auxiliary positioning information of the GNSS device in the at least two neighboring terminals;

The selecting unit 44 is configured to select a neighboring terminal with the highest quality of the detection result according to the detection result of the detection and acquisition of the auxiliary positioning information of the GNSS device in the at least two neighboring terminals;

The obtaining unit 46 is configured to acquire the auxiliary positioning information from the selected neighboring terminal.

FIG. 5 is a block diagram 3 of an apparatus for assisting acquisition of positioning information according to a preferred embodiment of the present invention. As shown in FIG. 5, the apparatus further includes:

The auxiliary positioning module 26 is configured to perform auxiliary positioning according to the acquired auxiliary positioning information of the GNSS device of the neighboring terminal.

In the embodiment of the present invention, a terminal is further provided, and the terminal may include: the foregoing device.

The embodiments of the present invention are described below in conjunction with specific preferred embodiments.

Considering the increasing number of devices with GNSS positioning capabilities and the increasing opportunities for people to use GNSS positioning, in most cases, most positioning devices will store available auxiliary positioning data, or some do not have The GNSS-located functional devices also have available auxiliary positioning data. For some GNSS devices without auxiliary positioning data, the embodiments of the present invention provide a method for acquiring auxiliary positioning data to some nearby devices having auxiliary positioning data, and not only the remote positioning auxiliary server through the network. Get or download directly through GNSS satellites.

The embodiment of the present invention provides a method for acquiring auxiliary positioning information to other devices having auxiliary positioning data or receiving auxiliary positioning data sent by a device having GNSS auxiliary positioning data, for some devices with no GNSS auxiliary positioning data. The present invention implements GNSS assisted positioning information by using other devices than the GNSS assisted positioning server in the conventional sense, including the following contents:

When the GNSS device user checks through the auxiliary positioning information monitoring module that the current device has no auxiliary positioning data, the auxiliary positioning data has expired or is about to fail, and the auxiliary positioning data of other GNSS devices is more comprehensive, etc., The auxiliary positioning information is acquired to other GNSS devices through the communication module. Here the communication module can be connected to other GNSS devices by wire or wirelessly. After the auxiliary positioning information is obtained, the user can organize, verify, and format the auxiliary positioning data through the interface module, and then the auxiliary positioning data is transmitted by the interface module to the auxiliary information maintenance module for maintenance. When the GNSS positioning module requires it, the auxiliary positioning information can be obtained through the auxiliary information maintenance module.

When the auxiliary information monitoring module detects that the current device auxiliary positioning data is about to expire, the auxiliary positioning information request is sent to the control module. The control module sends a service discovery request to the service discovery module. After receiving the service discovery request of the control module, the service discovery module discovers and acquires the GNSS auxiliary positioning information through the communication module, and transmits the auxiliary positioning data to the auxiliary positioning information through the interface module for organization, verification, format conversion, and the like. The auxiliary information maintenance module performs maintenance. The control module updates the acquisition of the GNSS auxiliary positioning information in real time, and synchronizes the update status to the auxiliary information monitoring module, so that the auxiliary information monitoring module updates the internal state.

The following modules are involved in the foregoing: a control module, a service discovery module, an auxiliary information monitoring module, and an interface module. The implementation of the present invention implements the functions of all the modules described above by the determining module 22 and the obtaining module 24. The above modules are described in detail below.

The control module: as an agent of the auxiliary information monitoring module, replaces the auxiliary information monitoring module to execute the service request, and when the execution is completed, returns the execution result to the auxiliary information monitoring module;

Service discovery module: responsible for discovering devices with GNSS auxiliary information and negotiating communication methods;

Auxiliary information monitoring module: responsible for monitoring the status of the auxiliary positioning information;

Interface module: responsible for the acquisition, organization, verification, format conversion of auxiliary information.

The embodiments of the present invention are further described below in conjunction with specific embodiments.

Embodiment 1

FIG. 6 is a block diagram 1 of an embodiment of a method for assisting positioning information acquisition according to a preferred embodiment of the present invention. As shown in FIG. 6, the method includes the following steps:

Step S601, the auxiliary information monitoring module queries the state of the auxiliary positioning information of the device through the interface module.

Step S602: The interface module returns a state of the auxiliary positioning information by accessing the lower layer module.

Steps S603, S604, if the user finds that the status of the auxiliary auxiliary positioning information or the auxiliary positioning information is not good enough, the auxiliary positioning information is obtained from the other GNSS devices through the communication module;

Step S605, the step GNSS device acquires the state of the auxiliary positioning information of the device by using the auxiliary information monitoring module;

Step S606, the auxiliary information monitoring module returns the set auxiliary positioning information state;

Step S607, if the state of the auxiliary positioning information of the device is good, the auxiliary positioning information is obtained through the interface module.

Step S608, step S609, the interface module returns the auxiliary positioning information of the device, and sends the information to the requesting device through the communication module;

Step S610, after receiving the auxiliary positioning information, the communication device transmits the information to the interface module.

Embodiment 2

FIG. 7 is a block diagram 2 of an embodiment of a method for assisting positioning information acquisition according to a preferred embodiment of the present invention. As shown in FIG. 7, the method includes the following steps:

Step S701, step S702, the auxiliary information monitoring module monitors the state of the auxiliary positioning information of the device through the interface module;

Step S703, when the auxiliary information monitoring module detects that the auxiliary information state is not good enough, sends the auxiliary information update request to the control module;

Step S704, after receiving the request, the control module invokes the service discovery module to obtain the device that selects the auxiliary positioning information with good status;

Step S705, step S706, the service discovery module issues a request for acquiring the auxiliary positioning information to the selected setting;

Step S707, after receiving the auxiliary positioning information request, the device invokes the control module;

Step S708, the control module requests the auxiliary positioning information to the auxiliary positioning information monitoring module;

Step S709, step S710, the auxiliary information monitoring module acquires the auxiliary positioning information through the interface module;

Step S711, the auxiliary information detecting module returns the auxiliary positioning information;

Step S712, step S713, the control module sends the returned auxiliary positioning information to the requesting device through the communication module;

Step S714, after receiving the auxiliary positioning information, the requesting end communication module sends the auxiliary information to the control module;

In step S715, the control module sends the auxiliary information to the interface module.

A new method and technology for acquiring GNSS assisted positioning information proposed by the embodiment of the present invention expands the access method of the auxiliary positioning information, and is a supplement to the traditional GNSS assisted positioning information acquiring method, which may There will be great development in the future of the Internet of Things. This method can save data traffic, save power of GNSS equipment, and expand the ease of use of GNSS.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. 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.

Industrial applicability

As described above, the method, device, and terminal for assisting positioning information acquisition provided by the embodiments of the present invention have the following beneficial effects: improving the efficiency of assisting positioning information acquisition, simplifying the acquisition of auxiliary positioning information, and reducing the acquisition of auxiliary positioning information. The time of the way.

Claims

A method for assisting in obtaining positioning information includes:

Determining that the state of the auxiliary positioning information of the global satellite navigation system GNSS device of the terminal is abnormal;

Acquiring the positioning information of the GNSS device of the neighboring terminal from the neighboring terminal supporting the communication with the terminal.
The method of claim 1, wherein the obtaining the auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal that supports communication with the terminal comprises:

Sending, to the neighboring terminal, a request message for requesting acquisition of the auxiliary positioning information of the GNSS device of the neighboring terminal, where the request message is used to indicate that the neighboring terminal sends the auxiliary positioning to the terminal The indication information for detecting the auxiliary positioning information before the information.
The method of claim 1, wherein the obtaining the auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal that supports communication with the terminal comprises:

Sending a detection message to the at least two neighboring terminals, where the detection message is used to detect the quality of the auxiliary positioning information of the GNSS device in the at least two neighboring terminals;

Selecting a neighboring terminal with the highest quality of the detection result according to the detection result of detecting and acquiring the auxiliary positioning information of the GNSS device in the at least two neighboring terminals;

Obtaining the auxiliary positioning information from the selected neighboring terminal.
The method according to any one of claims 1 to 3, wherein the auxiliary positioning information of the GNSS device of the neighboring terminal is obtained from a neighboring terminal supporting communication with the terminal by at least one of:

Bluetooth, near field communication, data lines.
The method according to any one of claims 1 to 3, further comprising: after acquiring the auxiliary positioning information of the GNSS device of the neighboring terminal from the neighboring terminal that supports communication with the terminal,

Auxiliary positioning is performed according to the obtained auxiliary positioning information of the GNSS device of the neighboring terminal.
A device for assisting acquisition of positioning information, comprising:

a determining module configured to determine that an abnormal state of the auxiliary positioning information of the global satellite navigation system GNSS device of the terminal is abnormal;

And an obtaining module, configured to acquire auxiliary positioning information of the GNSS device of the neighboring terminal from a neighboring terminal that supports communication with the terminal.
The apparatus of claim 6, wherein the obtaining module comprises:

a first sending unit, configured to send, to the neighboring terminal, a request message for requesting acquisition of the auxiliary positioning information of the GNSS device of the neighboring terminal, where the request message is used to indicate that the neighboring terminal is in the The indication information for detecting the auxiliary positioning information before the terminal sends the auxiliary positioning information.
The device of claim 6, wherein the obtaining module further comprises:

The second sending unit is configured to send a detection message to the at least two neighboring terminals, where the detection message is used to detect the quality of the auxiliary positioning information of the GNSS device in the at least two neighboring terminals;

The selecting unit is configured to select a neighboring terminal with the highest quality of the detection result according to the detection result obtained by detecting and acquiring the auxiliary positioning information of the GNSS device in the at least two neighboring terminals;

And an obtaining unit, configured to acquire the auxiliary positioning information from the selected neighboring terminal.
The device according to any one of claims 6 to 8, wherein the device further comprises:

The auxiliary positioning module is configured to perform auxiliary positioning according to the acquired auxiliary positioning information of the GNSS device of the neighboring terminal.
A terminal comprising the apparatus of any one of claims 6 to 9.