WO2017185748A1

WO2017185748A1 - Cell identity-based positioning method and positioning server, and mobile device

Info

Publication number: WO2017185748A1
Application number: PCT/CN2016/108217
Authority: WO
Inventors: 牟振宁; 胡成冈; 孙中锋
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-04-29
Filing date: 2016-12-01
Publication date: 2017-11-02
Also published as: CN107343262A

Abstract

The present disclosure relates to a cell identity-based positioning method, comprising: receiving a positioning request message transmitted by a mobile device; transmitting an adjacent cell measuring instruction to the mobile device; receiving an adjacent cell measurement report submitted by the mobile device, the adjacent cell measurement report comprising a cell global identity of a trans-station adjacent cell satisfying a preset threshold criterion; acquiring coordinate information of a corresponding adjacent cell on the basis of the cell global identity of the trans-station adjacent cell in the adjacent cell measurement report; determining positioning point coordinates on the basis of coordinate information of a serving cell and the coordinate information of the trans-station adjacent cell acquired; and transmitting the positioning point coordinates to the mobile device. The positioning point coordinates acquired per the positioning method are of increased accuracy. The present disclosure also relates to a positioning server and the mobile device.

Description

Cell identification based positioning method and positioning server, mobile device

Technical field

The present application relates to the field of wireless communication technologies, for example, to a cell identity-based positioning method, a positioning server, and a mobile device.

Background technique

With the popularity of mobile smart devices, location based services (LBS)-based applications are becoming more widespread, such as navigation, positioning, and the like that are frequently used. The traditional cell identity-based positioning method obtains corresponding coordinate information by using a cell identifier (Cell ID) of the serving cell to implement positioning. This positioning method is less accurate.

Summary of the invention

Based on this, the disclosure provides a cell identification-based positioning method and a positioning server with higher accuracy, and also provides a mobile device.

The embodiment of the present invention provides a cell identity-based positioning method, configured to perform positioning on a mobile device, including the steps of: receiving a location request message sent by a mobile device; transmitting a neighbor cell measurement instruction to the mobile device; The neighboring cell measurement report reported by the mobile device, where the neighboring cell measurement report includes a global identifier of a cell of a cross-station neighboring cell that meets a preset threshold condition; and a global cell of the cross-station neighboring cell according to the neighbor cell measurement report Obtaining coordinate information of the corresponding neighboring area; acquiring coordinate information of the serving cell; determining coordinate of the positioning point according to the acquired coordinate information of the serving cell and coordinate information of the cross-station neighboring area; and transmitting the positioning point coordinate to the mobile device .

The embodiment of the present invention further provides a positioning server, configured to locate a mobile device, including: a receiving module configured to receive a positioning request message sent by the mobile device; and a sending module configured to send a phase to the mobile device a neighboring cell measurement command; the receiving module is further configured to receive a neighbor cell measurement report reported by the mobile device, where the neighbor cell measurement report includes a cell global identifier of a cross-station neighboring cell that meets a preset threshold condition; The acquiring module is further configured to acquire coordinate information of the corresponding neighboring cell according to the global identifier of the cell in the neighboring cell of the neighboring cell measurement report; the acquiring module is further configured to acquire coordinate information of the serving cell; Configured according to the obtained serving cell The coordinate information and the coordinate information of the cross-station neighboring area determine the positioning point coordinates; the sending module is further configured to send the positioning point coordinates to the mobile device.

The embodiment of the present invention further provides a cell identity-based positioning method, including the steps of: sending a location request message to a positioning server; receiving a neighbor cell measurement instruction sent by the location server; and performing neighboring cells according to the neighbor cell measurement instruction. Measure and generate a neighbor cell measurement report; the neighbor cell measurement report includes a cell global identifier of the cross-station neighboring area that meets the preset threshold condition; report the neighbor cell measurement report to the positioning server; and receive the positioning The coordinates of the anchor point sent by the server.

The embodiment of the invention further provides a mobile device, comprising: a sending module, configured to send a positioning request message to a positioning server; a receiving module configured to receive a neighboring cell measurement instruction sent by the positioning server; and a measuring module configured Performing neighbor cell measurement according to the neighbor cell measurement instruction and generating a neighbor cell measurement report; the neighbor cell measurement report includes a cell global identifier of a cross-station neighboring area that meets a preset threshold condition; the sending module The receiving module is further configured to report the neighboring cell measurement report to the positioning server; the receiving module is further configured to receive the positioning point coordinates sent by the positioning server.

The embodiment of the invention further provides a non-transitory computer readable storage medium storing computer executable instructions, the computer executable instructions being arranged to perform the above method.

An embodiment of the present invention further provides an electronic device, including:

At least one processor;

a memory communicatively coupled to the at least one processor; wherein

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method described above.

The cell identifier-based positioning method and the positioning server and the mobile device may send a neighbor cell measurement command to the mobile device according to the received location request message to obtain a cell global identifier of the cross-station neighboring cell that meets the preset threshold condition. Obtaining coordinate information of the corresponding cross-station neighboring area according to the acquired global identifier of the cell, and acquiring coordinate information of the serving cell, thereby determining the coordinates of the positioning point according to the coordinate information of the serving cell and the obtained coordinate information of the cross-station neighboring area and transmitting Give mobile devices the ability to locate mobile devices. It can be seen that in the present disclosure, the positioning information of the serving cell and the cross-station neighboring area can be combined, and multi-point positioning can be realized, thereby effectively improving the positioning accuracy. And, the service cell and the cross The coordinate information of the neighboring area of the station is determined, and it is not necessary to rely on external resources to obtain coordinate information, and the independence is good.

BRIEF abstract

FIG. 1 is a flowchart of a cell identity based positioning method according to an embodiment of the present invention;

2 is a flowchart of a cell identity-based positioning method according to another embodiment of the present invention;

3 is a structural block diagram of a positioning server according to an embodiment of the present invention;

4 is a flowchart of a method for locating a cell identity according to another embodiment of the present invention;

FIG. 5 is a structural block diagram of a mobile device according to an embodiment of the present invention; FIG.

FIG. 6 is a flowchart of a cell identity based positioning method according to an embodiment of the present invention;

Figure 7 is a flow chart of step S628 of Figure 6;

FIG. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Embodiments of the invention

In order to make the technical solutions and advantages of the present disclosure more comprehensible, the present disclosure will be described in detail below with reference to the accompanying drawings and embodiments. It is understood that the embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.

FIG. 1 is a flowchart of a cell ID (Cell ID) based positioning method in an embodiment, where the positioning method is used to locate a mobile device. The positioning method includes the following steps:

S110. Receive a positioning request message sent by the mobile device.

The mobile device can send a location request message to the positioning server of the operator through an API interface developed by the operator. The wireshark packet capture technology can be used to collect the signaling sent by the mobile device (also referred to as the user equipment UE), so that the wired device can see whether the mobile device sends the positioning message including the location request message.

S120. Send a neighbor cell measurement instruction to the mobile device.

The neighboring cell measurement instruction is used to control the mobile device to perform Automatic Neighbor Relation (ANR) measurement to detect whether the cross-station cell (ie, the inter-station neighboring cell) adjacent to the serving cell meets the preset threshold condition. The preset threshold condition can be set by default or carried in the adjacent cell. In the measurement instruction, the neighboring cell measurement instruction further includes a preset threshold condition. In an embodiment, the location request message may further include a base station detection identifier. The base station detection identifier may be an IP address of the location server or a specific packet format, for example, a source port + a destination port + a specific message length may be used. Therefore, the location server only sends the neighbor cell measurement command (ANR measurement command) only after detecting the base station detection identifier.

The mobile device performs ANR measurements based on the ANR measurement instructions. The ANR measurement process may include the following steps: First, the mobile device performs measurement on the neighboring cell according to the ANR measurement command, and reports the physical cell identifier (PCI) of the cross-station neighboring cell that meets the preset threshold condition to the positioning server. . When a plurality of inter-station neighboring areas meet the preset threshold condition, the physical cell identifier forming list of the plurality of cross-station neighboring areas that meet the condition may be reported to the positioning server. After receiving the physical cell identifier list, the positioning server sends a cell global identifier measurement instruction for the list. For the LTE wireless network, the cell global identifier is ECGI (E-UTRAN Cell Global Identifier), and for the 2G and 3G wireless networks, the cell global identifier is CGI (Cell Global Identifier). After receiving the global indication measurement command of the cell, the mobile device acquires the global identifier of the corresponding cell and generates an ANR measurement report to report to the location server.

In an embodiment, timing is also initiated while transmitting neighbor cell measurement commands. Therefore, before step S130, the method further includes: determining whether the ANR measurement report is received within the preset duration, and if the ANR measurement report is received within the preset duration, executing S130; if the ANR measurement report is not received within the preset duration, returning to the execution S120, thereby ensuring that the positioning server can receive the ANR measurement report. By setting the response time of the mobile device, it is possible to avoid the waste of time caused by the long-term waiting of the mobile device for a long time without waiting for the mobile device to wait for a long time, and to ensure that the positioning can be smoothly performed.

S130. Receive a neighbor cell measurement report reported by the mobile device.

After the ANR measurement is completed, the mobile device generates an ANR measurement report and reports it to the positioning server. The ANR measurement report reported by the mobile device includes the global identifier of the cell of the cross-station neighboring area that meets the preset threshold condition. In an embodiment, the signal strength information of the cross-station neighboring area that meets the preset threshold condition is further included in the ANR measurement report reported by the mobile device. The stronger the signal strength, the closer the cell is to the mobile device.

S140. Acquire coordinate information of the corresponding neighboring area according to the global identifier of the cell in the neighboring cell of the neighboring cell measurement report.

In this embodiment, all sites of the operator of the mobile network type to which the mobile device belongs are pre-registered. The work parameter information (such as LTE site, 3G site, and 2G site) is stored. The pre-stored parameter information may include information such as MCC (Mobile Country Code), MNC (Mobile Network Code), cell ID (Cell ID), and coordinate information (GPS information). When the base station includes multiple cells, the coordinate information of the cell is the coordinate information of the center point of the cell, or the coordinate information representative of the cell range is used as the coordinate information of the cell as needed. When the base station includes only one cell, the coordinate information of the cell is the coordinate information of the base station. Each cell identifier is stored in one-to-one correspondence with the coordinate information. Therefore, the corresponding coordinate information can be obtained according to the acquired global identifier of the cell. The Ginseng information can be stored directly in the location server and can be stored in a separate server.

In an embodiment, it is also determined whether the number of cell global identifiers of the cross-station neighboring cells in the received ANR measurement report is greater than or equal to two. When the number of cell global identifiers of the cross-station neighboring cells in the ANR measurement report is greater than or equal to two, the corresponding two coordinate information may be obtained only according to the cell global identifiers of the two cross-station neighboring cells with the strongest signal strength. The signal strength information is measured together with the ANR measurement, and is stored in a one-to-one correspondence with the global identifier of the cell, and then sent to the positioning server together with the ANR measurement report. When the number of the global identifiers of the cells of the cross-station neighboring area is one, the coordinate information corresponding to the global identifier of the cell of the cross-station neighboring area is obtained.

S150. Obtain coordinate information of the serving cell.

S160. Determine positioning point coordinates according to the acquired coordinate information of the serving cell and coordinate information of the cross-station neighboring area.

The coordinates of the positioning point are calculated according to the acquired coordinate information, thereby obtaining the current coordinates of the mobile device. In an embodiment, when the number of cell global identifiers of the cross-station neighboring area is greater than or equal to two, that is, the number of acquired coordinate information of the cross-station neighboring area is two, the three coordinates to be obtained are taken as The three vertices of the triangle use the triangle circumcircle formula to obtain the circumscribed circle center as the coordinates of the anchor point. By selecting the coordinate information of the two cross-station neighbors with the strongest signal (that is, the closest), it is advantageous to improve the positioning accuracy. When the number of global identifiers of the cells in the cross-station neighboring area is only one, the coordinates of the midpoint of the cross-station neighboring area and the coordinates of the serving cell are obtained as the coordinates of the positioning point. In the ANR measurement report, when the number of cell global identifiers of the cross-station neighboring cell is zero, the coordinate information of the serving cell is directly used as the anchor point coordinate to ensure that the coordinate information of the neighboring cell that is available is still available. Mobile device for positioning. In other embodiments, other multi-point positioning calculation methods may also be used to calculate the coordinates of the obtained positioning points based on the acquired plurality of coordinate information. In other embodiments, S150 may only need to be executed after S110 and before S160.

S170. Send positioning point coordinates to the mobile device.

The positioning point coordinates are sent to the mobile device to achieve positioning of the mobile device. After receiving the coordinates of the positioning point, the mobile device can also visually display the location information on the electronic map.

The cell identity-based positioning method sends a neighbor cell measurement command to the mobile device according to the received location request message to obtain a cell global identifier of the cross-station neighboring cell that meets the preset threshold condition. Obtaining coordinate information of the corresponding cross-station neighboring area according to the acquired global identifier of the cell, and acquiring coordinate information of the serving cell, thereby determining the coordinates of the positioning point according to the coordinate information of the serving cell and the obtained coordinate information of the cross-station neighboring area and transmitting Give mobile devices the ability to locate mobile devices. The above positioning method is combined with the coordinate information of the serving cell and the inter-station neighboring area to perform positioning, which can realize multi-point positioning and effectively improve the positioning accuracy. Moreover, the coordinate information of the serving cell and the cross-station neighboring area are determined, and the coordinate information is not required to be relied on external resources, and the independence is good. The above positioning method does not need to change the current LTE frame structure, and does not need to be improved in the mobile device terminal to achieve precise positioning, and can be applied to an LTE system, and can also be applied to a Wideband Code Division Multiple Access (WCDMA) system, global mobile communication. Mobile communication systems such as systems (GSM).

2 is a flowchart of a cell identity-based positioning method in another embodiment, including the following steps:

S210. Receive a positioning request message sent by the mobile device.

In this embodiment, the location request message further includes mobile network type information (MNC) and mobile country code (MCC) for identifying network operators (such as China Mobile, China Telecom, etc.).

S220. Send different neighbor cell measurement commands to the mobile device in sequence.

The ANR measurement instruction also includes wireless network access type information and mobile network type information. The mobile network type information contained in the ANR measurement command is used to control the mobile device to measure only neighboring cells of the same mobile network type. The type of mobile network in the ANR measurement instruction is the same as the type of mobile network in the location request message. Different ANR measurement instructions are sent in sequence to control the mobile device to sequentially measure neighboring cells of each wireless network access type in the same mobile network. For example, the LTE co-frequency ANR measurement command, the LTE inter-frequency ANR measurement command, the 3G ANR measurement command, and the 2G ANR measurement command are sequentially issued, thereby controlling the mobile device to perform corresponding ANR measurement, and generating a corresponding ANR measurement report and reporting the report to the positioning. server. In other embodiments, the order of the measurement instructions issued in sequence may be set as needed. For example, the LTE inter-frequency ANR measurement command or the 3GANR measurement command or the like may be sent first, and is not limited to the above-mentioned delivery order.

S230. Receive a neighbor cell measurement report reported by the mobile device in sequence.

S240. Acquire coordinate information of the corresponding neighboring area according to the global identifier of the cell in the neighboring cell of the neighboring cell measurement report.

S250. Obtain coordinate information of the serving cell.

S260. Determine positioning point coordinates according to the acquired coordinate information of the serving cell and coordinate information of the cross-station neighboring area.

S270: Send the coordinates of the positioning point to the mobile device.

The present disclosure also provides a positioning server, which is shown in FIG. Referring to FIG. 3, the location server 200 includes a receiving module 310, a sending module 320, an obtaining module 330, and a computing module 340.

The receiving module 310 is configured to receive a positioning request message sent by the mobile device. The transmitting module 320 is configured to transmit a neighbor cell measurement instruction to the mobile device. The receiving module 310 is further configured to receive a neighbor cell measurement report reported by the mobile device. The neighbor cell measurement report includes a cell global identifier of the cross-station neighboring area that meets the preset threshold condition. The obtaining module 320 is configured to obtain coordinate information of the corresponding neighboring area according to the global identifier of the cell of the cross-station neighboring cell in the neighbor cell measurement report. The acquisition module 320 is also configured to acquire coordinate information of the serving cell. The calculation module 340 is configured to determine the anchor point coordinates based on the acquired coordinate information. The sending module 330 is also configured to send the anchor coordinates to the mobile device to complete the positioning of the mobile device.

The location server 200 sends a neighbor cell measurement command to the mobile device according to the received location request message to obtain a cell global identifier of the cross-station neighboring area that meets the preset threshold condition. Obtaining coordinate information of the corresponding cross-station neighboring area according to the acquired global identifier of the cell, and acquiring coordinate information of the serving cell, thereby determining the coordinates of the positioning point according to the coordinate information of the serving cell and the obtained coordinate information of the cross-station neighboring area and transmitting Give mobile devices the ability to locate mobile devices. The positioning server 200 performs positioning by combining coordinate information of the serving cell and the cross-station neighboring area, and can implement multi-point positioning, thereby effectively improving positioning accuracy. Moreover, the coordinate information of the serving cell and the cross-station neighboring area are determined, and the coordinate information is not required to be relied on external resources, and the independence is good. The positioning process of the positioning server 200 does not need to change the current LTE frame structure, and does not need any improvement in the mobile device terminal to achieve accurate positioning, and can be applied to the LTE system or the Wideband Code Division Multiple Access (WCDMA) system. Mobile communication systems such as the Global System for Mobile Communications (GSM).

4 is a flowchart of a cell identity based positioning method, which may be performed in a mobile device, including the following steps:

S410. Send a positioning request message to the positioning server.

The mobile device can send a location request message to the positioning server of the operator through an API interface developed by the operator. S420. Receive a neighbor cell measurement instruction sent by the positioning server.

The location server can use the wireshark packet capture technology to collect the signaling sent by the mobile device (also referred to as the user equipment UE), so that the wired device can see whether the mobile device sends the location message including the location request message. The positioning server sends a neighbor cell measurement instruction to the mobile device when it sees that the message sent by the mobile device includes the location request message. The mobile device receives an ANR measurement instruction sent by the positioning server. The neighboring cell measurement instruction is used to control the mobile device to perform Automatic Neighbor Relation (ANR) measurement to detect whether the cross-station cell (ie, the inter-station neighboring cell) adjacent to the serving cell meets the preset threshold condition. The preset threshold condition can be set by default, or it can be carried in the ANR measurement instruction, that is, the ANR measurement instruction also includes a preset threshold condition. In an embodiment, the location request message may further include a base station detection identifier. The base station detection identifier may be an IP address of the location server or a specific packet format, for example, a source port + a destination port + a specific message length may be used. Therefore, the location server only sends the neighbor cell measurement command (ANR measurement command) only after detecting the base station detection identifier.

S430: Perform neighbor cell measurement according to the neighbor cell measurement instruction and generate a neighbor cell measurement report.

The mobile device performs ANR measurements based on the ANR measurement instructions. The ANR measurement process may include the following steps: First, the mobile device performs measurement on the neighboring cell according to the ANR measurement command, and reports the physical cell identifier of the cross-station neighboring cell that meets the preset threshold condition to the location server. When a plurality of inter-station neighboring areas meet the preset threshold condition, the physical cell identifier forming list of the plurality of cross-station neighboring areas that meet the condition may be reported to the positioning server. After receiving the physical cell identifier list, the positioning server sends a cell global identifier measurement instruction for the list. Wherein, for the LTE wireless network, the cell global identifier is ECGI, and for the 2G and 3G wireless networks, the cell global identifier is CGI. After receiving the global indication measurement command of the cell, the mobile device acquires the global identifier of the corresponding cell and generates an ANR measurement report to report to the location server.

S440: Report the neighbor cell measurement report to the location server.

After the ANR measurement is completed, the mobile device generates an ANR measurement report and reports it to the positioning server. The ANR measurement report reported by the mobile device includes the cell of the cross-station neighboring cell that meets the preset threshold condition. Ball logo.

S450: Receive positioning point coordinates sent by the positioning server.

After the location server obtains the relevant location information according to the received location request message and the neighbor cell measurement report, the location point coordinates can be determined and sent to the mobile device. After receiving the coordinates of the positioning point, the mobile device can also visually display the location information on the electronic map.

The cell identity-based positioning method is configured to send a location request message to the location server, and generate a neighbor cell measurement report to report to the location server according to the neighbor cell measurement command sent by the location server, so that the location server can be configured. The multi-point positioning is realized by combining the coordinate information of the serving cell and the cross-station neighboring area, thereby effectively improving the positioning accuracy. Moreover, since the coordinate information of the serving cell and the cross-station neighboring area are determined, it is not necessary to rely on external resources to acquire coordinate information, and the independence is good. The above positioning method does not need to change the current LTE frame structure, and does not need to be improved in the mobile device terminal to achieve precise positioning, and can be applied to an LTE system, and can also be applied to a Wideband Code Division Multiple Access (WCDMA) system, global mobile communication. Mobile communication systems such as systems (GSM).

The present disclosure also provides a mobile device, and a structural block diagram of the mobile device is shown in FIG. 5. Referring to FIG. 5, the mobile device 500 includes a sending module 510, a receiving module 520, and a measuring module 530. The sending module 510 is configured to send a location request message to the location server. The receiving module 520 is configured to receive a neighbor cell measurement instruction sent by the positioning server. The measurement module 530 is configured to perform neighbor cell measurements and generate neighbor cell measurement reports based on neighbor cell measurement instructions. The neighbor cell measurement report includes a cell global identifier of the cross-station neighboring area that meets the preset threshold condition. The sending module 510 is further configured to report the neighbor cell measurement report to the positioning server. The receiving module 520 is further configured to receive the anchor point coordinates sent by the positioning server.

The mobile device 500 is configured to send a positioning request to the positioning server, and generate a neighboring cell measurement report to report to the positioning server according to the neighboring cell measurement command sent by the positioning server, so that the positioning server can combine the serving cell and the The coordinate information of the cross-station cell realizes multi-point positioning, which effectively improves the positioning accuracy. Moreover, since the coordinate information of the serving cell and the cross-station cell are both determined, it is not necessary to rely on external resources to acquire coordinate information, and the independence is good. The mobile device 500 described above may be applied to an LTE system, and may also be applied to a mobile communication system such as a Wideband Code Division Multiple Access (WCDMA) system or a Global System for Mobile Communications (GSM).

The cell identity-based positioning method in this embodiment is described in detail below with reference to an embodiment. The positioning method is described by taking an LTE system as an example, and includes the following steps, as shown in FIG. 6.

S602. The mobile device sends a location request message to the positioning server.

The mobile device uses the API interface developed by the operator to send a location request message, where the IP address of the location server is included as the base station detection identifier.

In this embodiment, before the S602, all the LTE stations, 3G stations, and 2G site parameter information of the operator are stored.

S604: Parsing the location request message, parsing the location request message, and then sending the LTE co-frequency ANR measurement instruction to the mobile device, and starting the timer at the same time.

The location server can use the wireshark packet capture technology to collect the signaling sent by the mobile device (also referred to as the user equipment UE), so that the wired device can see whether the mobile device sends the location message including the location request message.

S606. Determine whether the timer expires.

If the timer expires, then S616 is performed. If the timer has not timed out, S608 is executed.

S608. Determine whether a physical cell identifier list reported by the mobile device is received.

If the physical cell identification list (PCI list) is received, S610 is performed; if the physical cell identification list (PCI list) is not received, the process returns to S606.

S610: Deliver a cell global identity measurement instruction for the PCI list, and restart the timer.

The duration of the timer is the same as the timing duration in S604, and the values are all on the order of 1S.

S612. Determine whether the timer expires.

If the timer expires, S616 is performed; if the timer has not timed out, S614 is performed.

S614. Determine whether the cell global identifier of the corresponding PCI list reported by the mobile device is received.

If the ECGI or CGI corresponding to the PCI list is received, the ECGI or CGI is saved and S616 is executed; if the ECGI or CGI corresponding to the PCI list is not received, the process returns to S612.

S616. Determine whether the inter-frequency ANR measurement instruction is sent.

If the inter-frequency ANR measurement instruction has been issued, S618 is performed; if the inter-frequency ANR measurement instruction is not issued, S622 is performed.

S618, determining whether the 3GANR measurement instruction is sent.

If the 3G ANR measurement instruction has been issued, execute S620; if the 3G ANR measurement instruction is not When issued, S624 is executed.

S620: Determine whether the 2GANR measurement instruction is sent.

If the 2G ANR measurement instruction has been issued, S628 is performed; if the 2G ANR measurement instruction is not issued, S626 is performed.

S622, sending an inter-frequency ANR measurement instruction, and restarting the timer.

After S622 is executed, S606 and its subsequent steps are executed again.

S624, issuing a 3GANR measurement instruction and restarting the timer.

After S624 is executed, S606 and its subsequent steps are executed again.

S626, issuing a 2GANR measurement instruction and restarting the timer.

After S626 is executed, S606 and its subsequent steps are executed again.

S628: Perform positioning calculation, and send the calculated coordinates of the positioning point to the mobile device.

Figure 7 is a flow chart of S628, which may include the following sub-steps:

S702. Determine whether the number of the global identifiers of the cross-site cells reported is greater than or equal to two.

If the number of the reported cross-station cell global identifiers is not greater than or equal to two, then S704 is performed, and if the number of the reported cross-station cell global identifiers is greater than or equal to two, then S708 is performed.

S704. Determine whether the number of the cross-site cell global identifiers reported is equal to one.

If the number of the reported cross-station cell global identifiers is not equal to one, then S706 is performed; if the number of reported cross-station cell global identifiers is equal to one, then S710 is performed.

S706, using coordinate information of the serving cell as the positioning point coordinate.

After the execution of S706, S712 is executed, and the coordinates of the obtained positioning point are sent to the mobile device.

S708. Acquire coordinates of two cross-station neighboring areas and a serving cell of the cross-station cell global identifier, and obtain coordinates of the positioning point.

Obtain the coordinates of the two cross-station neighboring areas and the serving cell of the cross-station cell global identification as the three positioning reference points, and obtain the GPS coordinates of the three points from the server as the three vertices of the triangle, and then use the triangle to complete The circumscribed circle formula is used to obtain the circumscribed circle center as the coordinates of the positioning point. After executing S708, S712 is executed.

S710, using the coordinates corresponding to the global identifier of the cell in the cross-station neighboring area and the coordinates of the serving cell to obtain two The midpoint coordinates between the two are used as the anchor point coordinates.

S712. Send the acquired coordinates of the positioning point to the mobile device.

The coordinates of the obtained positioning point are returned to the mobile device (or UE) through the API interface.

The above Cell ID-based positioning method can achieve precise positioning without changing the current LTE frame structure and without any improvement in the mobile device terminal. The above positioning method can be applied to an LTE system, and can also be applied to a mobile communication system such as a Wideband Code Division Multiple Access (WCDMA) system or a Global System for Mobile Communications (GSM).

The embodiment of the present invention further provides a non-transitory computer readable storage medium storing computer executable instructions, the computer executable instructions being configured to perform the method in any of the above embodiments.

The embodiment of the invention further provides a schematic structural diagram of an electronic device. Referring to FIG. 8, the electronic device includes:

At least one processor 80, which is exemplified by a processor 80 in FIG. 8; and a memory 81, may further include a communication interface 82 and a bus 83. The processor 80, the communication interface 82, and the memory 81 can complete communication with each other through the bus 83. Communication interface 82 can be used for information transfer. Processor 80 can invoke logic instructions in memory 81 to perform the methods of the above-described embodiments.

In addition, the logic instructions in the memory 81 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.

The memory 81 is used as a computer readable storage medium for storing software programs, computer executable programs, and program instructions/modules corresponding to the methods in the embodiments of the present invention. The processor 80 performs the function application and the data processing by running the software program, the instruction and the module stored in the memory 81, that is, the cell identity-based positioning method in the foregoing method embodiment.

The memory 81 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may be stored according to the use of the terminal device The data created, etc. Further, the memory 81 may include a high speed random access memory, and may also include a nonvolatile memory.

A person skilled in the art can understand that all or part of the process of implementing the above embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium, such as the present invention. In an embodiment, the program can be stored in a storage medium of the computer system and executed by at least one processor in the computer system to implement a process comprising an embodiment of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present disclosure, but are not to be construed as limiting the scope of the disclosure. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. Therefore, the scope of the disclosure should be determined by the appended claims.

Industrial applicability

The application can be combined with the coordinate information of the serving cell and the cross-station neighboring area to achieve multi-point positioning, which effectively improves the positioning accuracy. Moreover, the coordinate information of the serving cell and the cross-station neighboring area are determined, and the coordinate information is not required to be relied on external resources, and the independence is good.

Claims

A cell identity-based positioning method for locating a mobile device, including:

Receiving a location request message sent by the mobile device; sending a neighbor cell measurement instruction to the mobile device;

Receiving, by the mobile device, a neighbor cell measurement report, where the neighbor cell measurement report includes a cell global identifier of the cross-station neighboring area that meets the preset threshold condition;

Obtaining coordinate information of the corresponding neighboring area according to the global identifier of the cell in the neighboring cell of the neighboring cell in the measurement report of the neighboring cell;

Obtaining coordinate information of the serving cell;

Determining the coordinates of the positioning point according to the acquired coordinate information of the serving cell and the coordinate information of the cross-station neighboring area;

Sending the positioning point coordinates to the mobile device.
The method according to claim 1, wherein the neighbor cell measurement report further includes signal strength information of the cross-station neighboring area that meets the preset threshold condition.
The method according to claim 2, wherein the obtaining the coordinate information of the corresponding neighboring area according to the global identifier of the cell in the neighboring cell of the neighboring cell measurement report includes:

When the number of cell global identifiers of the cross-station neighboring cells in the neighbor cell measurement report is greater than or equal to two, the coordinate information corresponding to the cell global identifiers of the two cross-station neighboring cells with the strongest signal is obtained;

And obtaining coordinate information corresponding to the global identifier of the cell of the cross-station neighboring area, when the number of the global identifiers of the cells in the neighboring cell of the neighboring cell is one.
The method according to claim 3, wherein the determining the coordinates of the positioning point according to the coordinate information of the acquired serving cell and the coordinate information of the cross-station neighboring area comprises:

When the number of acquired coordinate information of the cross-station neighboring area is two, the coordinate information of the two cross-station neighboring areas and the coordinate information of the serving cell are obtained as three vertices of the triangle, and the triangle circumcircle formula is used to obtain Taking the center of the circumscribed circle as the coordinates of the positioning point;

When the number of pieces of coordinate information of the cross-station neighboring area is one, the midpoint coordinates of the two are determined according to the coordinate information of the cross-station neighboring area and the coordinate information of the serving cell.
The method of claim 1, wherein the neighbor cell measurement order includes wireless network access type information to control the mobile device to measure neighboring cells employing the wireless network access type.
The method according to claim 5, wherein the location request message further includes mobile network type information; the neighbor cell measurement instruction further includes mobile network type information; and the mobile network type in the neighbor cell measurement instruction The information is the same as the mobile network type information in the positioning request message;

The sending the neighbor cell measurement instruction to the mobile device includes: sequentially sending different neighbor cell measurement commands to the mobile device, to sequentially adopt each wireless network access type in the mobile network type The neighboring cells perform measurements.
The method according to claim 1, wherein when the transmitting a neighbor cell measurement instruction to the mobile device, timing is started while transmitting a neighbor cell measurement instruction;

Before receiving the neighbor cell measurement report reported by the mobile device, the method further includes:

Determining whether a neighbor cell measurement report is received within a preset time period;

If the neighbor cell measurement report is received within the preset time period, the receiving the neighbor cell measurement report reported by the mobile device is performed;

If the neighbor cell measurement report is not received within the preset time duration, returning to the transmitting the neighbor cell measurement command to the mobile device.
The method of claim 1, wherein the location request message further comprises mobile network type information; the method further comprising:

All cell identifiers in the mobile network type and coordinate information corresponding to the cell identifier are pre-stored.
A positioning server for locating mobile devices, including:

a receiving module, configured to receive a positioning request message sent by the mobile device;

a sending module, configured to send a neighbor cell measurement instruction to the mobile device;

The receiving module is further configured to receive a neighbor cell measurement report reported by the mobile device, where the neighbor cell measurement report includes a cell global identifier of a cross-station neighboring area that meets a preset threshold condition;

The acquiring module is further configured to acquire coordinate information of the corresponding neighboring area according to the global identifier of the cell in the neighboring cell of the neighboring cell measurement report;

The acquiring module is further configured to acquire coordinate information of the serving cell;

a calculation module configured to obtain coordinate information of the acquired serving cell and coordinates of the cross-station neighboring area Information determines the coordinates of the anchor point;

The sending module is further configured to send the positioning point coordinates to the mobile device.
A cell identity based positioning method includes:

Sending a location request message to the location server;

Receiving a neighbor cell measurement instruction sent by the positioning server;

Performing, according to the neighboring cell measurement instruction, performing neighbor cell measurement and generating a neighbor cell measurement report; the neighbor cell measurement report includes a cell global identifier of the cross-station neighboring cell that meets the preset threshold condition;

Reporting the neighbor cell measurement report to the positioning server;

Receiving the coordinates of the positioning point sent by the positioning server.
A mobile device comprising:

a sending module, configured to send a positioning request message to the positioning server;

a receiving module, configured to receive a neighbor cell measurement instruction sent by the positioning server;

The measuring module is configured to perform neighbor cell measurement according to the neighbor cell measurement instruction and generate a neighbor cell measurement report; the neighbor cell measurement report includes a cell global identifier of the cross-station neighboring area that meets the preset threshold condition ;

The sending module is further configured to report the neighbor cell measurement report to the positioning server;

The receiving module is further configured to receive positioning point coordinates sent by the positioning server.
A non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of any of claims 1-8.
A non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of claim 10.