WO2008095399A1 - Procédé et système de localisation de terminal mobile - Google Patents

Procédé et système de localisation de terminal mobile Download PDF

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Publication number
WO2008095399A1
WO2008095399A1 PCT/CN2008/000082 CN2008000082W WO2008095399A1 WO 2008095399 A1 WO2008095399 A1 WO 2008095399A1 CN 2008000082 W CN2008000082 W CN 2008000082W WO 2008095399 A1 WO2008095399 A1 WO 2008095399A1
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WO
WIPO (PCT)
Prior art keywords
mobile terminal
cell
location information
information
corresponding location
Prior art date
Application number
PCT/CN2008/000082
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English (en)
Chinese (zh)
Inventor
Qiang Wang
Qin Li
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Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008095399A1 publication Critical patent/WO2008095399A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a mobile terminal positioning method and system.
  • BACKGROUND With the rapid development of wireless communication systems, there are more and more mobile users, and different mobile users have different requirements for wireless communication systems.
  • the function of mobile terminal positioning has been used by more and more people, and applications are also More and more widely, it has become a very important function in existing wireless communication systems.
  • the mobile terminal positioning service needs to be initiated by the user or the positioning terminal when needed, and the network selects different positioning technologies for the mobile terminal according to factors such as the positioning capability of the system and the mobile terminal, the geographical environment in which the mobile terminal is located, and the like. Positioning. These positioning technologies have a certain time delay without exception.
  • mobile users often want to know their location in real time. For example, when going out and traveling to a strange city, mobile users often want to know their location in real time (such as Nanshan District, Shenzhen). In this case, the mobile user has lower requirements on the positioning accuracy, but has higher requirements on the real-time positioning of the mobile terminal positioning service and the convenience of obtaining the location information.
  • Step 101 The mobile positioning center (MPC) initiates an ISPOSREQ message to the mobile switching center (MSC), and requests a target mobile terminal (MS) to initiate a cell identity based (CI Cell Identity) positioning;
  • MPC mobile positioning center
  • Step 102 The MSC pages the mobile terminal.
  • a typical example of this solution is to use a triangulation algorithm, which needs to collect the time delay from the mobile terminal to the base station (BS) through pilot measurement to determine the distance to each BS.
  • the number of pilot measurements is the pilot measurement count.
  • the MSC determines that the pilot measurement count is 0 (or does not carry the pilot measurement count).
  • Step 103 The BS pages the mobile terminal on a paging channel.
  • Step 104 The mobile terminal responds on the access channel.
  • Step 105 The BS places the paging response content in the complete layer 3 message, and sends the message to the MSC; where the current service CELLID of the mobile terminal is carried.
  • Step 106 After determining, by the MSC, the location of the cell where the mobile terminal is located, return an isposreq positioning response to the MPC.
  • Step 107 The MSC sends a clear command message to the BS to release the terminal resource.
  • the reason value is 09, indicating normal release.
  • Step 108 The BS notifies the mobile terminal to release
  • Step 109 The mobile terminal returns a release response message.
  • Step 110 The BS notifies the MSC that the clearing is completed.
  • the network element MPC is a positioning control entity used to communicate with the MSC to initiate and control the entire process of positioning.
  • Figure 2 it is a schematic diagram of CDMA positioning logic networking.
  • the general positioning process is initiated from the LCS.
  • the LCS tells the MPC to locate a mobile terminal.
  • the MPC finds the MSC where the mobile terminal is currently located, and requests the MSC to the MSC.
  • Mobile terminals are positioned.
  • the MSC locates the assigned traffic channel, connects the mobile terminal to the MSC, and then the mobile terminal begins to collect positioning data (pilot information or GPS information) and passes the information to the PDE (Location Determination Entity) via the MSC. Based on these data, the PDE calculates the current geographic location of the mobile terminal and sends the result to the MPC, which ultimately tells the LCS.
  • PDE Location Determination Entity
  • the mobile network environment needs to be complex, and the MPC entity is required. Since the MPC entity is not an existing network element in the mobile network, if a large area is used, the existing communication network device connection needs to be changed, which is necessary. A lot of money is invested and will greatly affect the stability of the communication network. Summary of the invention
  • the embodiment of the invention provides a mobile terminal positioning method and system, which are used to solve the prior art.
  • the existence of mobile terminal positioning requires the MPC positioning entity to complete the problem of positioning.
  • a mobile terminal positioning method includes:
  • the cell corresponding location information is set in the network side cell information.
  • the network side is located in the cell information of the mobile terminal, and the cell corresponding location information of the cell where the mobile terminal is located is sent to the mobile terminal.
  • a mobile terminal positioning system includes:
  • a cell corresponding location information setting unit located at the network side, configured to set cell corresponding location information in the network side cell information
  • the cell corresponding location information sending unit is located at the network side, and is configured to: when the network side receives the mobile terminal interaction information, send the cell corresponding location information of the cell where the mobile terminal is located to the mobile terminal.
  • FIG. 1 is a schematic diagram of a positioning process of a mobile terminal in the prior art
  • FIG. 2 is a schematic structural diagram of a network for providing a positioning service of a mobile terminal in the prior art
  • FIG. 3 is a schematic diagram of a positioning system of a mobile terminal according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a system in which a cell corresponding location information setting unit is located in an MSC according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a system in which a cell corresponding location information setting unit is located in a BS according to an embodiment of the present invention
  • Embodiment 1 of the present invention is a schematic flowchart of Embodiment 1 of the present invention.
  • Embodiment 5 of the present invention is a schematic flowchart of Embodiment 5 of the present invention.
  • FIG. 11 is a schematic flowchart of Embodiment 6 of the present invention.
  • FIG. 12 is a schematic flowchart diagram of Embodiment 7 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 12 is a schematic flowchart diagram of Embodiment 7 of the present invention.
  • FIG. 3 it is a schematic diagram of a mobile terminal positioning system according to an embodiment of the present invention.
  • the system structure includes a network side device such as a BS and an MSC, and is uniformly summarized by the network side in the embodiment.
  • the embodiment of the present invention adds a cell corresponding location information setting unit, which is located on the network side, and is used to set cell corresponding location information in the network side cell information.
  • a cell corresponding location information setting unit which is located on the network side, and is used to set cell corresponding location information in the network side cell information.
  • the cell information is some data configured on the network side, and is configured on both the MSC and the BS.
  • One MSC must configure all cell information it covers, and one BS is configured to allocate its own cell number.
  • This information is just a string of numbers for the MSC.
  • 3100300010020 is a Cell Global Identity (CGI) that identifies a cell globally (where 310 is the country code, indicating which country the cell is in; 03 is The network number, for example, China Unicom is 03; 0001 is the location area, which is a relatively large area, generally covering the range of multiple base stations; 002 is the base station number below this large area, and the latitude and longitude of the BS is when the network is planned. To be determined; the last 0 is the sector number). Since the mobile terminal accesses the system, it must be accessed from a certain BS, so the BS brings its own CI to the MSC when it accesses, that is, 0020.
  • CGI Cell Global Identity
  • the cell corresponding location information is added.
  • the network side sends the cell corresponding location information of the cell where the mobile terminal is located to the mobile terminal.
  • the cell corresponding location information may be the cell corresponding area name and/or the geographical location information corresponding to the cell.
  • this CGI corresponding BS is set in Tiananmen Square, when configuring this cell on the network side, you can increase the name of the cell at the same time.
  • Tiananmen Square longitude: XXX degrees east longitude, latitude is north latitude YYY degrees.
  • the network side can know the CI of the cell currently in the mobile terminal, thereby knowing the geographical location and latitude and longitude information of the mobile terminal.
  • a cell corresponding location information sending unit is further configured to: when the mobile terminal interacts with the network side, according to the cell corresponding location information set by the cell corresponding location information setting unit, the cell corresponding location of the cell where the mobile terminal is located The information is sent to the mobile terminal.
  • the cell corresponding location information setting unit may be disposed on the network side BS or the network side MSC; the cell corresponding location information sending unit may also be located in the network side BS, or may be set in the network.
  • the MSCs on the side are described below.
  • FIG. 4 it is a system structure diagram of a cell corresponding location information setting unit and a cell corresponding location information sending unit located in a BS.
  • the cell corresponding location information setting unit is located in a BS, and is used for cell information in the BS.
  • the cell corresponding location information is set, and when the mobile terminal interacts with the BS, the cell corresponding location information sending unit sends the cell corresponding location information of the cell where the mobile terminal is located to the mobile terminal.
  • FIG. 5 it is a system structure diagram of a cell corresponding location information setting unit and a cell corresponding location information sending unit located in the MSC.
  • the cell corresponding location information setting unit is located in the MSC, and is used for cell information in the MSC.
  • the cell corresponding location information is set, and when the mobile terminal interacts with the MSC, the cell corresponding location information sending unit sends the cell corresponding location information of the cell where the mobile terminal is located to the mobile terminal.
  • This embodiment provides only the case of the BS and the MSC, and the added cell corresponding location information setting unit and the cell corresponding location information sending unit may also be located in other network side network elements, and may even be separately set on the network side, as long as Can complete the corresponding function.
  • the embodiment of the present invention further provides a mobile terminal subscription information determining unit, configured to determine whether the mobile terminal subscribes to the positioning service, and when the mobile terminal interacts with the MSC, the MSC signs the service according to the mobile terminal positioning service.
  • the information is sent to the mobile terminal by the cell corresponding location information of the cell where the mobile terminal is located.
  • the mobile terminal subscription information determining unit may be located at the MSC, or Located in other locations on the network side, the specific solution can be determined according to actual needs.
  • the mobile terminal positioning method of the embodiment of the present invention first sets the corresponding location information of the small area in the network information of the network side.
  • the network side sends the cell corresponding location information of the cell where the mobile terminal is located to the mobile terminal.
  • the interaction between the mobile terminal and the network side information may be various, including the mobile terminal directly requesting location information from the network side, the mobile terminal location update process and the network side interaction information, and the mobile terminal call process and the network side. Interaction information, interaction information with the network side when the mobile terminal is called, etc., not here - for example.
  • the information about the cell's corresponding location of the cell in which the mobile terminal is located may be obtained by using the information exchanged between the mobile terminal and the BS, for example, using the existing message interaction between the mobile terminal and the BS to trigger the cell of the cell where the mobile terminal is located. Corresponding to the acquisition of location information. It is also possible to specifically extend a message in which the dedicated message is used to request the cell corresponding location information of the cell in which the mobile terminal is located.
  • FIG. 6 it is a schematic flowchart of acquiring location information when the mobile terminal interacts with the BS, and the network side sets the location information of the cell in the BS.
  • the BS sets the cell where the mobile terminal is located.
  • the cell corresponding location information is sent to the mobile terminal.
  • Step 601 The mobile terminal sends a request message to the BS, requesting cell location information of a cell where the mobile terminal is located;
  • Step 602 The BS sends the corresponding location information of the cell to the mobile terminal.
  • the BS obtains the corresponding location information of the cell according to the setting information, and carries the information in the response message to the mobile terminal.
  • the mobile terminal acquires the location information of the cell in the response message, and performs subsequent processing (displaying the region name or extracting latitude and longitude, etc.).
  • the network side can set the corresponding location information of the cell in the MSC, when the mobile terminal interacts with the MSC.
  • the MSC sends the cell corresponding location information of the cell where the mobile terminal is located to the mobile terminal.
  • the mobile terminal requests the network corresponding location information of the cell in the cell by using the request message, as shown in FIG. 7, which mainly includes the following steps:
  • Step 701 The mobile terminal sends a request message to the BS, requesting cell corresponding location information of the cell where the mobile terminal is located;
  • Step 702 The BS forwards the request message to the MSC.
  • the BS does not store the corresponding location information of the cell, and needs to obtain the location information corresponding to the cell from the MSC.
  • Step 703 The MSC acquires the location information of the cell according to the setting information, and carries the information in the response message to the BS.
  • Step 704 The BS sends the corresponding location information of the cell to the mobile terminal.
  • the mobile terminal acquires the corresponding location information of the cell in the response message, and performs subsequent processing, (displaying the region name or extracting latitude and longitude, etc.).
  • the MSC does not distinguish the mobile terminal information, and provides the corresponding location information of the cell to all the mobile terminals that request the location information, and the MSC can also determine whether the mobile terminal has the right to obtain the corresponding location of the cell according to the subscription information of the mobile terminal.
  • the information difference treatment scheme if shown in Figure 8, is a schematic diagram of the scheme of the scheme. As can be seen from the figure, the following steps are mainly included:
  • Step 801 The mobile terminal sends a request message to the BS, requesting cell corresponding location information of the cell where the mobile terminal is located;
  • Step 802 The BS forwards the request message to the MSC.
  • Step 803 The MSC determines, according to the subscription information of the mobile terminal, whether the mobile terminal has the right to obtain the location information of the cell.
  • the judgment result is that the mobile terminal has the right to acquire the corresponding location information of the cell.
  • the mobile terminal subscribes to the positioning service information, and the MSC obtains the information from the HLR, and may adopt one or a combination of the following manners:
  • the MSC obtains the subscription information of the mobile terminal through the location registration/update process;
  • the MSC obtains the mobile terminal subscription location service information through the qualification request process;
  • the MSC obtains the mobile terminal subscription location service information through the qualification indication process.
  • the mobile terminal subscription information is generally placed in the HLR.
  • the MSC can obtain the subscription information of the mobile terminal through the location registration process (the mobile terminal periodically sends a message to the network to ensure that the network knows where the mobile terminal is, for example, the mobile user from Beijing to Shenzhen.
  • the mobile terminal will register in Shenzhen.
  • the local MSC in Shenzhen will contact the HLR of the mobile subscriber to inform the HLR that the mobile terminal has roamed to Shenzhen, so that when there is a call to the mobile terminal, the network always First go to the mobile user to open the HLR to get its current location).
  • the HLR will inform the MSC of the subscription information of the mobile terminal.
  • the qualification indication process which the HLR actively tells the MSC which mobile terminal to subscribe to
  • the qualification request the MSC requests the HLR to inform the mobile terminal of the subscription information
  • Step 804 the MSC ⁇ ⁇ setting information, obtaining the corresponding location information of the cell, and carrying it in the response message, and sending to the BS;
  • Step 805 The BS sends the corresponding location information of the cell to the mobile terminal.
  • the mobile terminal obtains the corresponding location information of the cell by using the location update process and the MSC to exchange information, and the following steps are mainly included in the figure:
  • Step 901 The mobile terminal initiates a location update, and sends a registration message Registration Message to the BS.
  • the location update is initiated to the MSC, and the mobile terminal initiates the location update by triggering multiple reasons: the timer of the mobile terminal is timed out, power on, power off, parameter change, or when the mobile phone is currently in the cell and last registered. The distance between the cells exceeds the threshold, etc., so that it is sufficient that the frequency at which the mobile terminal does the location update satisfies the requirements of the coarse positioning.
  • Step 902 The BS sends a location update request message to the MSC, and notifies the MSC to update the current location of the mobile terminal.
  • the BS reports the CI to the MSC according to the cell where the mobile terminal initiates the location update.
  • the CI is a number given to the BS when it is installed, and is a 4-digit number.
  • Step 903 The MSC sends a location update accepting Location Updating Accept message to the BS, and carries the cell corresponding location information of the cell where the mobile terminal is located.
  • the MSC detects that the mobile terminal has subscribed to the rough location. After completing the general location update process, the CGI query configuration data of the cell in which the mobile terminal is currently located is obtained, and the corresponding location information of the cell is obtained, and the location is added. The Accept message is sent to the BS.
  • the MSC will configure all CGIs when configured. After obtaining the CI, the MSC will be matched to obtain the CGI, so that the cell where the mobile terminal is currently located is determined globally.
  • Step 904 The BS sends a registration accept command to the mobile terminal, and the mobile terminal obtains the cell corresponding location information of the cell where the mobile terminal is located from the message, and performs subsequent application processing (display area name or extracting latitude and longitude, etc.).
  • FIG. 10 it is a schematic diagram of a process in which the mobile terminal obtains the corresponding location information of the cell of the cell where the mobile terminal is located through the call flow and the network side interaction information.
  • the method mainly includes the following steps:
  • Step 1001 The mobile terminal initiates a call, and sends an Origination Message to the BS.
  • Step 1003 The MSC adds the corresponding location information of the cell to the Assignment Request message and sends the information to the BS.
  • the MSC detects that the mobile terminal has subscribed to the location service according to the embodiment of the present invention.
  • the queried configuration data is obtained according to the CGI of the cell in which the mobile terminal is currently located, and the cell corresponding is obtained.
  • the location information is added to the BS in the Assignment Request message.
  • Step 1004 The BS sends a channel assignment message to the mobile terminal.
  • the mobile terminal obtains the corresponding geographic information of the cell of the current cell from the message for subsequent application.
  • the BS will carry the CI of the cell in which the mobile terminal is currently located in the paging response (Pagine Response) message to the MSC, and the MSC can also carry the current location of the mobile terminal in the Assignment Request message.
  • the cell of the cell corresponds to the location information to the mobile terminal.
  • FIG. 11 it is a schematic diagram of a process for acquiring location information of a cell when the mobile terminal makes a call. As can be seen from the figure, the method mainly includes the following steps:
  • Step 1101 The MSC sends a paging request (Paging Request) to the BS.
  • Paging Request a paging request
  • Step 1102 The BS pages the called mobile terminal on the control channel
  • Step 1103 After the called mobile terminal receives the paging, responds;
  • Step 1104 The BS back paging response (Paging Response) message; the message with the mobile station where the mobile terminal is located;
  • Step 1105 Before completing the normal call connection, the MSC queries the configuration data according to the CGI of the cell where the mobile terminal is currently located, and obtains the corresponding location information (area name or latitude and longitude, etc.) of the cell and adds the traffic channel assignment. The message is sent to the step 1106 in the Assignment Request message, and the BS sends a channel assignment message to the mobile terminal.
  • the mobile terminal obtains the corresponding location information of the cell of the current cell from the message for subsequent application processing (display area name or extract latitude and longitude, etc.).
  • Step 1201 The mobile terminal sends a location update request to the BS, where the location update request carries the CI of the cell where the mobile terminal is currently located;
  • Step 1202 The BS forwards the location update request to the MSC.
  • Step 1203 The MSC sends a location update response to the BS.
  • Step 1204 The BS sends the location update response to the mobile terminal, and ends the location update process.
  • Step 1205 The MSC sends the cell corresponding location information structure notification message to the BS according to the CI.
  • Step 1206 The BS sends the notification message to the mobile terminal.
  • the mobile terminal displays the corresponding location information of the cell in the current cell at each location registration, and stays for a short time after the location is updated.
  • the above solution of the embodiment of the present invention does not need to use the mobile positioning center MPC or the positioning to determine the physical PDE, saves the network construction cost, and brings a more friendly real-time positioning mode to the mobile user, which satisfies the low-precision positioning requirement of the mobile terminal.
  • the foregoing solution of the embodiment of the present invention provides a real-time rough positioning function, and an operator can control whether to provide a real-time rough positioning service for a mobile terminal and collect a corresponding fee by signing a contract.
  • the technical threshold for providing the service is low.
  • the coarse positioning service can also be provided by the technical solution described in the embodiment of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un procédé et un système de localisation de terminal mobile. Le procédé comprend les étapes suivantes: le message de position correspondant à une zone réduite est intégré dans les informations de zone réduite du côté réseau; lorsque le terminal mobile et le côté réseau se transmettent mutuellement des informations, le côté réseau transmet les informations de position correspondant à la zone réduite de la zone réduite que le terminal mobile localise au terminal mobile, selon les informations de la zone réduite que le terminal mobile localise. L'invention permet d'obtenir une position sans utiliser le centre de localisation mobile MPC, afin de réduire les coûts de construction du réseau et de satisfaire les exigences de l'utilisateur quant à la faible précision de position.
PCT/CN2008/000082 2007-02-02 2008-01-11 Procédé et système de localisation de terminal mobile WO2008095399A1 (fr)

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CN200710003321.7 2007-02-02
CN200710003321A CN100584095C (zh) 2007-02-02 2007-02-02 一种移动终端定位方法及系统

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