WO2022042118A1 - 地图构建方法、装置、电子设备及存储介质 - Google Patents

地图构建方法、装置、电子设备及存储介质 Download PDF

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Publication number
WO2022042118A1
WO2022042118A1 PCT/CN2021/106557 CN2021106557W WO2022042118A1 WO 2022042118 A1 WO2022042118 A1 WO 2022042118A1 CN 2021106557 W CN2021106557 W CN 2021106557W WO 2022042118 A1 WO2022042118 A1 WO 2022042118A1
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information
cell
terminal
map database
determined
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PCT/CN2021/106557
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English (en)
French (fr)
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刘得煌
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Oppo广东移动通信有限公司
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Publication of WO2022042118A1 publication Critical patent/WO2022042118A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29—Geographical information databases
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information

Definitions

  • the present application relates to the field of positioning technology, and in particular, to a map construction method, apparatus, electronic device, and storage medium.
  • the radio frequency fingerprint positioning is realized by relying on the radio frequency fingerprint map.
  • the signal fluctuates, which reduces the positioning accuracy.
  • the embodiments of the present application provide a map construction method, apparatus, electronic device, and storage medium.
  • the embodiment of the present application provides a map construction method, including:
  • the first information represents the information about the same base station collected by the terminal when performing the cell changing event of the setting type.
  • second information corresponding to each cell in the at least one cell is determined in the setting map database; the second information represents the Set the cell boundary corresponding to the cell change event of the type;
  • the first information reported by each terminal in the at least one terminal is added to the set map database where the second information is determined, so as to obtain a radio frequency fingerprint map corresponding to the cell change event of the set type.
  • the embodiment of the present application also provides a terminal, including:
  • a first acquiring unit configured to acquire first information reported by each terminal in the at least one terminal when a cell change event of a set type is performed; the first information represents that the terminal is performing a cell change event of the set type RF fingerprint information about the same base station collected at the same time;
  • a determining unit configured to determine the second information corresponding to each cell in the at least one cell in the setting map database based on the first information reported by each terminal in the at least one terminal; the first information The second information represents the cell boundary corresponding to the cell change event of the set type;
  • the adding unit is configured to add the first information reported by each terminal in the at least one terminal to the setting map database where the second information is determined, to obtain the cell change event corresponding to the setting type. RF fingerprint map.
  • Embodiments of the present application also provide an electronic device, including: a processor and a memory for storing a computer program that can be executed on the processor,
  • Embodiments of the present application further provide a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of any of the above map construction methods.
  • FIG. 1 is a schematic diagram of a realization flow of a map construction method provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of a cell boundary under an LTE communication standard provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a cell selection boundary under an LTE communication standard provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a cell reselection boundary under an LTE communication standard provided by an embodiment of the present application
  • FIG. 5 is a schematic diagram of a cell handover boundary under an LTE standard provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a terminal performing cell handover according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a cell re-establishment boundary under an LTE communication standard according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of an implementation flowchart of a map construction method provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of an implementation flow of a map construction method provided by another embodiment of the present application.
  • FIG. 10 is a schematic diagram of an implementation flow of a map construction method provided by another embodiment of the present application.
  • FIG. 11 is a schematic diagram of a terminal reporting first information on a set route according to an embodiment of the application.
  • FIG. 12 is a schematic diagram of an implementation flowchart of a map construction method provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of an implementation flowchart of a map construction method provided by another embodiment of the present application.
  • FIG. 14 is a schematic diagram of an implementation flow of a map construction method provided by another embodiment of the present application.
  • 15 is a schematic flowchart of determining location information corresponding to the first information provided by an embodiment of the present application.
  • 16 is a schematic structural diagram of a map construction apparatus provided by an embodiment of the application.
  • FIG. 17 is a schematic structural diagram of a hardware composition of an electronic device according to an embodiment of the present application.
  • FIG. 1 shows an implementation process of the map construction method provided by the embodiment of the present application. As shown in Figure 1, the illustrated method includes:
  • S101 Acquire first information reported by each terminal in at least one terminal when performing a cell change event of a set type; the first information represents information about the same data collected by the terminal when performing a cell change event of the set type.
  • RF fingerprint information of the base station Acquire first information reported by each terminal in at least one terminal when performing a cell change event of a set type; the first information represents information about the same data collected by the terminal when performing a cell change event of the set type.
  • the first information reported by each terminal in the at least one terminal when performing the cell change event of the set type is acquired, and the first information represents the radio frequency fingerprint of the same base station collected by the terminal when the cell change time of the set type is performed.
  • information, and the radio frequency fingerprint information may include information such as the identity of the cell and the strength of signals transmitted at different locations.
  • the terminal can collect the first information on the set route, for example, the radio frequency fingerprint information along the route can be collected by the terminal on a mobile line such as a subway line, a high-speed rail line, and an airplane line. In practical applications, base stations set up by different operators may be distributed on the set route. When using the terminal to collect the first information, it is necessary to determine the network information of all operators existing on the set route.
  • the first information is collected, and the radio frequency fingerprint is collected on the set route by using the mobility of the terminal.
  • One line can construct a radio frequency fingerprint map composed of multiple cells, which is beneficial to improve the collection efficiency of the radio frequency fingerprint.
  • the radio frequency fingerprint information of a base station provided by an operator in the same location at least one terminal with the same operator information is required to collect.
  • the cell change event includes cell selection, cell reselection, cell handover and cell re-establishment
  • the first information reported by the terminal when performing a cell change event of a set type includes the first information reported by the terminal when performing cell selection, the terminal The first information reported when performing cell reselection, the first information reported by the terminal when performing cell handover, and the first information reported by the terminal when performing cell re-establishment.
  • S102 Based on the first information reported by each of the at least one terminal, determine, in a set map database, second information corresponding to each cell in the at least one cell; the second information represents The cell boundary corresponding to the cell change event of the set type.
  • second information corresponding to each cell in the at least one cell is determined in the set map database, and the second information represents the corresponding cell change event of the set type.
  • the cell boundary is used to distinguish the coverage of different cells, and the cell boundary of a cell is usually described by signal strength.
  • Figure 2 is a schematic diagram of the cell boundary under the Long Term Evolution (LTE, Long Term Evolution) communication standard.
  • LTE Long Term Evolution
  • the signal strength transmitted by the base station decreases as the distance increases.
  • the four signal strengths in the figure are a and b respectively.
  • each way corresponds to a cell boundary.
  • the cell boundary of a cell includes a cell selection boundary, a cell reselection boundary, a cell handover boundary and a cell reconstruction boundary.
  • the cell selection boundary The boundary and the cell re-establishment boundary involve only one cell boundary, while the cell reselection boundary and the cell handover boundary include the cell boundary when leaving the source cell and the cell boundary when entering the target cell.
  • the reported first information can be divided according to the mobility characteristics of the terminal under the 3rd Generation Partnership Project (3GPP, the 3rd Generation Partnership Project) communication protocol.
  • the second information corresponding to each cell for example, as shown in FIG. 3 , which shows a schematic diagram of the cell selection boundary under the LTE communication standard.
  • the cell selection operation will be performed according to the communication protocol.
  • the terminal searches for nearby cells according to the communication system selected by the user. If the signal strength of the searched cell is greater than a certain threshold, it is considered that this cell can be camped on and the cell selection operation is completed.
  • the LTE standard will broadcast the cell selection threshold through SystemInformationBlockType1, and the specific protocol content is: cellSelectionInfo
  • the cell selection criterion S in normal coverage is fulfilled when:
  • the parameters broadcast by different cells may be different, and the conditions for cell selection will also be different.
  • the cell boundary corresponding to the signal threshold described by the above formula is defined as the cell selection boundary broadcast by the network, and the signal strength is lower than the cell selection threshold. , it is considered that the terminal cannot enter this cell by means of cell selection.
  • the cell boundary corresponding to the signal strength actually measured when the terminal is powered on or off-network and re-searching the network is defined as the cell boundary where the terminal performs cell selection mobility.
  • FIG. 4 shows a schematic diagram of a cell reselection boundary under the LTE communication standard. Cell reselection occurs when the terminal is in an idle state, that is, there is no data transmission with the network.
  • Cell reselection of LTE involves intra-frequency cell reselection, inter-frequency cell reselection, and inter-system reselection, wherein inter-system reselection involves cell reselection between 2G, 3G, and 5G.
  • the cell reselection conditions need to evaluate the signal conditions of the current cell and neighboring cells at the same time.
  • the cell reselection formula defined by the protocol is as follows:
  • the cell boundary corresponding to the signal threshold for triggering cell reselection described in the protocol is defined as the cell reselection boundary, and the cell reselection boundary includes the reselection cell boundary of the source cell and the reselection cell boundary of the target cell.
  • the types of cell reselection boundaries for the LTE standard include: intra-frequency cell reselection boundaries, inter-frequency cell reselection boundaries, LTE and 2G cell reselection boundaries, LTE and 3G cell reselection boundaries, and LTE and 5G cell reselection boundaries. Each cell reselection boundary is associated with the corresponding cell reselection type.
  • the parameters of various reselection types are configured in the system broadcast of the LTE cell, as shown in Table 1.
  • Table 1 shows all the reselection types specified in the protocol. parameters, the actual LTE cell may only broadcast part of the content, depending on the actual network deployment around the cell.
  • System message name Cell reselection parameters SystemInformationBlockType3 LTE cell intra-frequency and inter-frequency reselection parameters
  • SystemInformationBlockType4 LTE co-frequency reselection cell list to speed up terminal measurement
  • SystemInformationBlockType5 LTE inter-frequency reselection cell list to speed up terminal measurement
  • SystemInformationBlockType6 Threshold and frequency information of LTE and 3G inter-system reselection SystemInformationBlockType7 Threshold and frequency information of LTE and 2G inter-system reselection SystemInformationBlockType24 Threshold and frequency information for LTE and 5G inter-system reselection
  • FIG. 5 shows a schematic diagram of a cell handover boundary in the LTE standard.
  • Cell handover occurs when the terminal is in a connected state and there is data transmission with the network.
  • the terminal starts to measure the target cell, and when the signal quality of the target cell is higher than a certain threshold, it reports the measurement result and triggers cell handover, as shown in Figure 6,
  • Figure 6 A schematic flowchart of performing cell handover for a terminal.
  • the LTE network will configure the standard, frequency information and handover conditions of the target cell to be measured in the signaling process of the target network cell. For example, the signal quality of the current cell is lower than a certain threshold, and the signal of the target cell is higher than a certain threshold.
  • the measurement configuration information is as follows:
  • the cell boundary corresponding to the handover gate of the target cell configured by the network is defined as the handover-in boundary of the target cell.
  • the cell boundary corresponding to the signal strength measured in the source cell is Defined as the handover out boundary of the source cell.
  • Figure 7 shows a schematic diagram of the boundary of cell reconstruction under the LTE communication system. Cell reconstruction generally occurs when the terminal in the connected state has moved to the edge of the current cell, and at the same time, the handover to the target cell has not been initiated in time.
  • the network when the measurement results are not reported in time, the network does not switch the configuration, or when the network sends a switch command, the signal strength cannot send and receive data, etc., which will cause the switch to fail in time.
  • the reconstructed source cell and the target cell use the same communication system, and the cell boundary corresponding to the signal strength of the current cell at the time of reconstruction is defined as the cell reconstruction boundary.
  • the cell boundary corresponding to the cell change event of the set type is determined, so that the second cell corresponding to each cell in the at least one cell is determined in the set map database. information.
  • each cell in the at least one cell is determined in the set map database.
  • the method includes:
  • S801 Determine a target cell in the set map database; the target cell and the cell corresponding to the first information are the same cell.
  • the target cell is determined in the setting map database, wherein the target cell and the cell corresponding to the first information are the same cell.
  • the second information corresponding to different cells is different, and the second information corresponding to the target cell can be determined based on the first information only by determining the same target cell as the cell corresponding to the first information in the setting database.
  • the determining of the target cell in the set map database includes one of the following:
  • a cell with the same cell identity as the first information is determined as the target cell;
  • the target cell is determined in the set map database based on the neighboring cells of the cell corresponding to the first information; the neighboring cell is determined based on the reporting time of the first information.
  • the cell identifier may be a global cell identifier (CGI).
  • CGI Cell Global Identifier
  • MCC Mobile Country Code
  • MNC mobile network number
  • CI Cell Identifier
  • PCI Physical Cell Identifier
  • the identifier composed of frequency points wherein, in the LTE standard, the CGI can be queried through the SystemInformationBlockType1 broadcast, and the content is as follows:
  • the target cell After determining the cell identity of the first information, the target cell is determined in the setting map database.
  • the first information does not have a cell identifier
  • the target cell can be determined in the setting database based on the adjacent cells of the cell corresponding to the first information, and the adjacent cell is the report of the first information. time determined.
  • the set map database stores The cell on the set subway route is the same as the cell accessed by the terminal when the terminal moves on the subway route.
  • the next The cell corresponding to the reporting time of the first information is determined as a neighboring cell of the cell corresponding to the first information, and the target cell in the map database is set with the aid of the neighboring cell auxiliary judgment.
  • the cell distributions are cell A, cell B, and cell C, respectively.
  • the adjacent cells of the cell corresponding to the first information are cell A and cell C in the set map database, it can be determined that cell B is the same as the first information.
  • the corresponding cell is the same cell.
  • the target cell may also be determined in the set map database through information of several cells before and after the cell corresponding to the first information.
  • the cell with the same cell identifier as the first information can be determined as the target cell in the set map database, or, based on the corresponding first information
  • the adjacent cells of the cell, the target cell is determined in the set map database, and the adjacent cell is determined by the reporting time of the first information, so that the target cell can be determined in the set map database through different methods, and the radio frequency fingerprint map is improved. build efficiency.
  • determining the cell with the same cell identifier as the first information as the target cell in the setting map database includes:
  • the cell with the cell identifier corresponding to the first information is added to the set map database.
  • the corresponding cell is queried in the set map database, and when it cannot be queried in the set map database, it means that this cell is the first time
  • a target cell with the same cell identifier as the first information is added to the setting map database, so that the first information can be stored in the corresponding target cell in the setting database.
  • S802 Modify the third information corresponding to the target cell based on the corresponding first information, and determine the second information corresponding to the target cell; wherein,
  • the third information represents the cell boundary set by the corresponding cell in the set map database.
  • the third information corresponding to the target cell is modified based on the corresponding first information, and the second information corresponding to the target cell is determined, wherein the third information represents the cell boundary set by the corresponding cell in the setting map database
  • the cell boundary set in the setting map database is usually determined based on the network information provided by the operator, and the boundary information contained in the first information reported by the terminal may be the same as that of the third cell corresponding to the cell in the setting map database.
  • the information is not the same, so the third information corresponding to the target cell needs to be modified according to the corresponding first information, and the second information corresponding to the target cell is determined based on the modified third information.
  • the target cell is determined in the set map database, the target cell and the cell corresponding to the first information are the same cell, and the third information corresponding to the target cell is modified based on the corresponding first information, and the target cell is determined.
  • the accuracy of the fingerprint map is thus beneficial to improve the accuracy of positioning.
  • the modifying the third information corresponding to the target cell based on the corresponding first information includes:
  • S901 Determine a corresponding operation based on the type of the cell change event and a set condition satisfied by the signal corresponding strength in the first information; the corresponding operation includes a first operation and a second operation.
  • the corresponding operation is determined based on the type of the cell change time and the setting condition satisfied by the signal corresponding strength in the first information, wherein the corresponding operation refers to a method for modifying the third information, including the first operation and the second operation .
  • the corresponding operation refers to a method for modifying the third information, including the first operation and the second operation .
  • the determination of the corresponding operation based on the type of the cell change event and the corresponding set condition satisfied by the signal strength in the first information includes:
  • the setting conditions that need to be satisfied by the signal strength corresponding to the first information reported by the terminal in different cell change event types are different.
  • the cell change type is the first type, where the first type indicates that the cell change type is cell selection
  • the setting conditions that need to be satisfied are the signal strength corresponding to the first information and the third information
  • the corresponding signal strengths are not the same.
  • the corresponding operation is the first operation.
  • the cell change type is the second type, where the second type represents that the cell change type is any one of cell re-establishment, cell reselection, and cell handover
  • the setting conditions that need to be satisfied are those corresponding to the first information.
  • the signal strength is weaker than the signal strength corresponding to the third information, and when the signal strength corresponding to the first information meets the preset condition, the corresponding operation is the first operation.
  • the signal strength measured by different terminals may fluctuate, causing the terminal to perform a cell change event at different locations.
  • Figure 11 shows how the terminal reports the first information on the set route.
  • the first information collected by the terminal is related to the width of the road, and will eventually present a narrow strip of first information.
  • the second type of cell change event will occur in a specific area.
  • the terminal enters the second type of cell change event corresponding to the At the cell boundary, the terminal will get closer and closer to the cell that needs to stay after the second type of cell change event, and the signal strength will gradually increase. Therefore, when the signal strength corresponding to the cell boundary corresponding to the first information is higher than that of the third information. If the signal strength is strong, it means that the third information includes the cell boundary corresponding to the first information, and when the signal strength corresponding to the cell boundary corresponding to the first information is weaker than the strength corresponding to the cell boundary of the target cell set in the setting database, It means that the cell boundary corresponding to the first information is not included in the third information, therefore, the third information needs to be corrected.
  • the cell change type is cell reselection or cell handover
  • the cell boundaries corresponding to these two cell change types involve the transfer between the source cell and the camping cell
  • the signal strength meets the preset condition
  • the cell corresponding to the first information is the camping cell
  • the source cell corresponding to the first information is the first source cell
  • the terminal is transferred from the first source cell to the camping cell, so the first source cell belongs to the leaving cell
  • the camping cell belongs to the entering cell.
  • the setting conditions corresponding to the types of different cell change events are different.
  • the setting conditions may include multiple judgment conditions. When any one of all the judgment conditions is not satisfied, then The corresponding operation is the second operation.
  • the first operation signifies that the cell border of the target cell determined by the first information replaces the cell border of the target cell set in the set map database;
  • the second operation signifies that the cell border of the target cell determined by the first information is replaced by the cell border of the target cell;
  • the cell boundary of the target cell determined by the information is added to the set map database.
  • the third information corresponding to the target cell is modified through the determined corresponding operation, wherein, when the determined operation is the first operation based on the set condition that the signal strength corresponding to the first information satisfies, the third information is explained. Different from the first information, the third information needs to be corrected through a first operation, which represents that the boundary of the target cell determined by the first information replaces the cell boundary of the target cell set in the setting map database.
  • the second operation When the operation determined by the setting condition that the signal strength corresponding to the first information satisfies is the second operation, it means that the target cell in the set map database does not have the cell boundary corresponding to the first information, and the second operation needs to be performed to The third information of the target cell is modified, and the second operation represents adding the cell of the target cell determined by the first information to the setting map database.
  • the third information corresponding to the target cell is modified through the first operation based on the cell selection boundary corresponding to the first information
  • the cell selection boundary broadcast by the network in the first information is replaced in the setting database. Set the cell selection boundary of the cell broadcast of the target cell.
  • the boundary replaces the cell boundary of the target cell set in the set map database or adds to the set map database.
  • the corresponding operation is determined based on the type of the cell change event and the corresponding set condition satisfied by the signal strength in the first information, and the corresponding operation includes the first operation and the second operation.
  • the third information corresponding to the target cell is modified, wherein the first operation indicates that the cell boundary of the target cell determined by the first information replaces the cell boundary of the target cell set in the setting map database, and the second operation indicates that the cell boundary of the target cell determined by the first information will be replaced by the first operation.
  • the cell boundary of the target cell determined by the information is added to the set map database, so that the cell boundary can be corrected according to the collected RF fingerprint information, which is conducive to building a RF fingerprint map according to the collected RF fingerprint information, and improves the constructed RF fingerprint information. accuracy of the map.
  • S103 Add the first information reported by each terminal in the at least one terminal to the set map database where the second information is determined to obtain a radio frequency fingerprint map corresponding to the set type of cell change event .
  • the first information reported by each terminal in the at least one terminal is added to the set map database in which the second information is determined, so as to obtain a video fingerprint map corresponding to the cell change time of the set type.
  • the set map database in which the second information is determined.
  • the first information reported every time is added to the setting map database, so that the radio frequency fingerprint map corresponding to the cell in different change events can be constructed, thereby helping to improve the accuracy and reliability of positioning.
  • the first information reported by each terminal in the at least one terminal when performing a cell change event of a set type is acquired, and the first information represents information about the same data collected by the terminal when performing a cell change event of a set type.
  • the radio frequency fingerprint information of the base station based on the first information reported by each terminal in the at least one terminal, determines the second information corresponding to each cell in the at least one cell in the set map database, and the second information represents the set type.
  • the first information reported by each terminal in the at least one terminal is added to the set map database in which the second information is determined, so as to obtain the video fingerprint map corresponding to the cell change event of the set type, thereby
  • the corresponding RF fingerprint is added according to the cell boundary of the cell.
  • the RF fingerprint feature is collected by the terminal, which reduces the difficulty of obtaining the RF fingerprint feature, and can also construct the RF fingerprint map corresponding to different types of cell change events. , so that when the terminal is in a moving state during the positioning process, the influence of the signal fluctuation error on the positioning result is reduced, thereby improving the accuracy and reliability of the radio frequency fingerprint positioning.
  • the first information reported by each terminal in the at least one terminal is added to the set map database where the second information is determined to obtain the
  • the method includes:
  • S1201 Determine fourth information of the terminal in the moving process; the fourth information represents the first dwell time of the terminal in the corresponding cell.
  • the fourth information of the terminal in the moving process is determined, wherein the fourth information represents the first dwell time of the terminal in the corresponding cell, and the fourth information may be determined by the time interval between two cell change events performed by the terminal.
  • S1202 Determine a first time difference between the first dwell duration and the set dwell duration of the corresponding cell.
  • the first time difference between the first dwell duration and the set dwell duration of the corresponding cell is determined.
  • the first time difference is less than the first set value, it can be considered that the obtained first information is reliable, and the first information reported by the terminal is added to the set map database where the second information is determined.
  • the cell boundary corresponding to the first information is the same as the cell boundary of the corresponding cell in the set map database, the first information is added to the cell corresponding to the second information in the set map database.
  • the collected first information is part of the information in a cell. By collecting a cell for multiple times, the collected first information is combined with the radio frequency fingerprint of the corresponding cell in the set map database. Thus, a complete RF fingerprint can be constructed.
  • the first information reported by the terminal is added to the set map database where the second information is determined, include:
  • the sixth information represents the pre-stored radio frequency fingerprint information in the set map database.
  • the added first information can also be pre-stored with the cell in the setting database according to the storage situation of the radio frequency fingerprint information of the cell in the setting map database.
  • the stored RF fingerprint information is merged. Specifically, when the cell corresponding to the second information in the set map database has pre-stored radio frequency fingerprint information, starting from the moment when the first information is collected, according to time, the first information is compared with the second information in the set map database. The pre-stored radio frequency fingerprint information of the cell corresponding to the information is combined to construct the radio frequency fingerprint map corresponding to the cell change event of the set type. When the cell corresponding to the second information in the set map database does not have pre-stored radio frequency fingerprint information, the first information is added to the cell corresponding to the second information in the set map database.
  • the method further includes:
  • the frequency of adding the first information to each cell in the set map database is determined.
  • the frequency of storing the first information in the cell corresponding to the second information in the map of the base station can also be determined, that is, the setting map is determined.
  • the frequency of the first information stored in each cell in the database under different boundary types. Since the stored first information is reported by the terminal when a cell change event of a set type is performed, the second information in the map of the base station can be calculated according to the frequency
  • the frequency at which the corresponding cell stores the first information can determine the frequency of occurrence of a cell change event of the set type for each cell in the set map database.
  • the radio frequency fingerprint map includes cell boundaries of cells of different operators, wherein the cell boundaries can reflect different cell change events. Therefore, when the terminal is in the single-card mode, according to the cell change events in the radio frequency fingerprint map , access to a high-quality communication cell, for example, according to the radio frequency fingerprint map, the location information of the cell reselection from LTE to 5G can be confirmed, so that the terminal can reselect to the 5G cell in time according to the determined location information.
  • the terminal When the terminal is in dual-card mode, when the cell accessed by the terminal is the cell of the A-card operator, it can directly detect whether there is a higher-quality B-card operator's cell according to the radio frequency fingerprint map, and carry out the detection according to the detection result.
  • the handover operation increases the data transfer rate of the terminal.
  • the fourth information of the terminal in the moving process is determined, the fourth information represents the first dwell time of the terminal in the corresponding cell, and the difference between the first dwell time and the set dwell time of the corresponding cell is determined.
  • the first time difference value when the first time difference value is less than the first set value, the first information reported by the terminal is added to the set map database where the second information is determined, so that the collected radio frequency fingerprint can be determined.
  • a complete RF fingerprint map is constructed, thereby improving the reliability and integrity of the RF fingerprint map.
  • the method further includes:
  • the reliability of the acquired first information is not high enough, and the reliability of the first information needs to be investigated.
  • the first parameter represents the radio frequency signal strength of each location in the corresponding cell.
  • the first parameter determined by the fifth information matches the first parameter set in the corresponding cell, it means that the radio frequency fingerprint information has changed, and the corresponding second information in the setting map database needs to be updated
  • the first parameter represents the radio frequency signal strength of each location in the corresponding cell.
  • the upgraded cell A changes from the original two antennas to four antennas.
  • the root antenna this is, the first information collected when the terminal accesses the A cell is different from the radio frequency fingerprint information stored in the A cell in the set map database, and the radio frequency fingerprint stored in the set map database needs to be updated.
  • the corresponding second information in the setting map database needs to be updated, so as to be able to adapt to the situation of network deployment to update the set map database.
  • the fifth information can also be replaced in the cell corresponding to the second information, so that the radio frequency fingerprint information can be updated.
  • the fifth information when the first time difference value is greater than the first set value, the fifth information is obtained within the set time period, and the fifth information is the radio frequency fingerprint information of the corresponding cell reported by the terminal.
  • the first parameter determined by the five information matches the first parameter set in the corresponding cell, the corresponding second information in the set map database is updated, wherein the first parameter represents the radio frequency of each position in the corresponding cell.
  • the fingerprint signal strength can be used to identify the network deployment update, and the RF fingerprint map can be updated in time according to the network deployment status, which improves the timeliness of the RF fingerprint map, thereby improving the accuracy of the RF fingerprint map.
  • the first information reported by each terminal in the at least one terminal is added to the set map database where the second information is determined to obtain the
  • the method includes:
  • S1401 Determine a distance between a first terminal and a second terminal in the same moving direction in the at least one terminal; wherein, in the moving direction, the distance between the first terminal and the second terminal is fixed, and the first terminal and the second terminal are The second terminal is located behind the first terminal.
  • At least two terminals are set to collect the first information on the same set route, wherein each of the at least two terminals has the same operator and moving direction, and the at least two terminals are in the moving direction of the at least two terminals.
  • the second terminal is located behind the first terminal. Since the set route is usually a bus route, a subway route, a high-speed rail route, or an airplane route, the distance between each of the at least two terminals can be regarded as constant.
  • S1402 Determine the moving speed of the second terminal according to the time when the first terminal and the second terminal report the first information about the same cell.
  • the moving speed of the second terminal is determined according to the time when the first terminal and the second terminal report the first information about the same cell.
  • the first terminal and the second terminal are both located on the same set route, The cells passed by the two terminals are the same. Since there is a separation distance between the first terminal and the second terminal, when passing through the same cell, the first terminal is in front and the second terminal is behind, so the first terminal is in the front.
  • this time interval can be composed of the time when the first terminal passes through a certain cell and the time when the second terminal passes through the same cell. The time interval is determined.
  • the first information acquired by the first terminal may be compared with the first information acquired by the second terminal, for example, the features of the first information acquired by the first terminal and the first information acquired by the second terminal may be extracted, Including cell boundary and signal strength characteristics, when these characteristics are the same, it means that the first terminal and the second terminal access the same cell.
  • S1403 Determine the position information corresponding to the first information reported by the second terminal according to the moving speed of the second terminal and the set position point.
  • the location information corresponding to the first information reported by the second terminal is determined by the moving speed of the second terminal and the set location point, wherein the time composition of the first information about the same cell reported by the first terminal and the second terminal is determined.
  • the time interval and the distance between the first terminal and the second terminal are determined to obtain the moving speed of the second terminal.
  • the position information corresponding to the first information reported by the second terminal can be determined.
  • FIG. 15 shows a schematic flowchart of determining the location information corresponding to the first information.
  • the first terminal and the second terminal are both located in the same subway train, wherein the first terminal is located at the head of the train, and in the moving direction of the first terminal, the second terminal is located behind the first terminal, and the distance between them is d.
  • the first terminal collects the first information f1 at time t1
  • the second terminal collects the same first information f1 at time t2
  • the first information collected by the first terminal at time t2 is f2
  • the subway locomotive platform and parking space platform represent the position information corresponding to the first information by determining and calculating the relative position of the first information and the set position point, for example, determining the position information corresponding to the first information by the distance from the platform.
  • the first information reported by the second terminal is added to the set map database where the second information is determined, so that the first information containing the location information can be added to the map database.
  • the radio frequency fingerprint information and the location information are associated, so that the location information of the terminal can be determined according to the radio frequency fingerprint information based on the radio frequency fingerprint map.
  • GPS Global Positioning System
  • the location information corresponding to the first information can be determined through the acquired GPS location.
  • the terminal When the GPS signal is covered, for example, the terminal is located in an underground subway road, tunnel, etc., by using the set location to mark the location information of the first information, the location information corresponding to the first information can be obtained in a scene where the GPS signal is not covered.
  • the distance between the first terminal and the second terminal in the same moving direction of at least one terminal is determined, wherein, in the moving direction, the distance between the first terminal and the second terminal is fixed, and the second terminal is located in the At the back of a terminal, the moving speed of the second terminal is determined according to the time when the first terminal and the second terminal report the first information about the same cell, and the moving speed of the second terminal and the set position point are used to determine the reporting time of the second terminal.
  • the first information reported by the second terminal is added to the set map database where the second information is determined, so that the radio frequency fingerprint can be determined.
  • the corresponding location information avoids that the location calibration of the radio frequency fingerprint cannot be performed in places without GPS signal coverage, and improves the accuracy of the radio frequency fingerprint map.
  • the embodiment of the present application further provides a map construction device, as shown in FIG. 16 , the device includes:
  • the first obtaining unit 1601 is configured to obtain first information reported by each terminal in the at least one terminal when performing a cell change event of a set type; the first information represents that the terminal is performing a cell change of the set type RF fingerprint information about the same base station collected at the time of the event;
  • the determining unit 1602 is configured to determine the second information corresponding to each cell in the at least one cell in the setting map database based on the first information reported by each terminal in the at least one terminal; the The second information represents the cell boundary corresponding to the cell change event of the set type;
  • the adding unit 1603 is configured to add the first information reported by each terminal in the at least one terminal to the setting map database in which the second information is determined, so as to obtain the corresponding cell change event of the setting type. RF fingerprint map.
  • the determining unit 1602 determines, based on the first information reported by each terminal in the at least one terminal, in the setting map database, the corresponding cell of each cell in the at least one cell.
  • the configuration is:
  • the target cell and the cell corresponding to the first information are the same cell;
  • the third information corresponding to the target cell is modified based on the corresponding first information, and the second information corresponding to the target cell is determined;
  • the third information represents the cell boundary set by the corresponding cell in the set map database.
  • the determining unit 1602 determines the target cell in the setting map database, it is configured as one of the following:
  • a cell with the same cell identity as the first information is determined as the target cell;
  • the target cell is determined in the set map database based on the neighboring cells of the cell corresponding to the first information; the neighboring cell is determined based on the reporting time of the first information.
  • the configuration is as follows:
  • the cell with the cell identity corresponding to the first information is added to the set map database.
  • the configuration is as follows:
  • the corresponding operation includes a first operation and a second operation
  • the first operation signifies that the cell border of the target cell determined by the first information replaces the cell border of the target cell set in the set map database;
  • the second operation signifies that the cell border of the target cell determined by the first information is replaced by the cell border of the target cell;
  • the cell boundary of the target cell determined by the information is added to the set map database.
  • the determining unit 1602 when determining the corresponding operation based on the type of the cell change event and the corresponding set condition satisfied by the signal strength in the first information, the determining unit 1602 is configured to:
  • the corresponding operation is the second operation.
  • the adding unit 1603 adds the first information reported by each terminal in the at least one terminal to the setting map database where the second information is determined to obtain the setting type
  • the RF fingerprint map corresponding to the cell change event of is configured as:
  • the fourth information represents the first dwell time of the terminal in the corresponding cell
  • the first information reported by the terminal is added to the set map database where the second information is determined.
  • the apparatus further includes:
  • a second obtaining unit configured to obtain fifth information within a set duration when the first time difference is greater than the first set value; the fifth information is the corresponding information reported by the terminal RF fingerprint information of the cell;
  • a replacement unit in the case that the first parameter determined based on the fifth information matches the first parameter set in the corresponding cell, update the corresponding second information in the set map database;
  • the first parameter represents the radio frequency signal strength of each location in the corresponding cell.
  • the adding unit 1603 adds the first time difference reported by the terminal to the set map database in which the second information is determined in the case that the first time difference is smaller than the first set value.
  • a message the configuration is:
  • the sixth information represents the pre-stored radio frequency fingerprint information in the set map database.
  • the adding unit 1603 is further configured to:
  • the frequency of adding the first information to each cell in the set map database is determined.
  • the adding unit 1603 adds the first information reported by each terminal in the at least one terminal to the setting map database where the second information is determined to obtain the setting type
  • the RF fingerprint map corresponding to the cell change event of is configured as:
  • the first information reported by the second terminal is added to the set map database where the second information is determined.
  • the first acquiring unit 1601, the determining unit 1602, and the adding unit 1603 may be implemented by a processor in the map construction apparatus.
  • the processor needs to run the program stored in the memory to realize the functions of the above program modules.
  • map construction apparatus when the map construction apparatus provided by the above-mentioned embodiment of FIG. 16 constructs a map, only the division of the above-mentioned program modules is used as an example for illustration. In practical applications, the above-mentioned processing may be allocated to different program modules as required. Completion means dividing the internal structure of the device into different program modules to complete all or part of the processing described above.
  • map construction apparatus and the map construction method embodiments provided by the above embodiments belong to the same concept, and the specific implementation process thereof is detailed in the method embodiments, which will not be repeated here.
  • FIG. 17 is a schematic diagram of the hardware composition of the electronic device according to the embodiment of the present application, as shown in FIG. 17 .
  • electronic equipment including:
  • Communication interface 1 which can exchange information with other devices such as network devices;
  • the processor 2 is connected to the communication interface 1 to realize information interaction with other devices, and is used to execute the map construction method provided by one or more of the above technical solutions when running the computer program.
  • the computer program is instead stored on the memory 3 .
  • bus system 4 is used to realize the connection communication between these components.
  • the bus system 4 also includes a power bus, a control bus and a status signal bus.
  • the various buses are designated as bus system 4 in FIG. 17 .
  • the memory 3 in the embodiment of the present application is used to store various types of data to support the operation of the electronic device. Examples of such data include: any computer program used to operate on an electronic device.
  • the memory 3 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-only memory) Only Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), Magnetic Random Access Memory (FRAM, ferromagnetic random access memory), Flash Memory (Flash Memory), Magnetic Surface Memory , CD-ROM, or CD-ROM (Compact Disc Read-Only Memory); magnetic surface memory can be disk memory or tape memory.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • SSRAM Synchronous Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Type Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Link Dynamic Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 3 described in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the methods disclosed in the above embodiments of the present application may be applied to the processor 2 or implemented by the processor 2 .
  • the processor 2 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in the processor 2 or an instruction in the form of software.
  • the above-mentioned processor 2 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the processor 2 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, the storage medium is located in the memory 3, and the processor 2 reads the program in the memory 3, and completes the steps of the foregoing method in combination with its hardware.
  • the embodiment of the present application further provides a storage medium, that is, a computer storage medium, specifically a computer-readable storage medium, for example, including a memory 3 storing a computer program, and the above-mentioned computer program can be executed by the processor 2, to complete the steps described in the preceding method.
  • the computer-readable storage medium may be memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.
  • the disclosed apparatus, electronic device and method may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms. of.
  • the unit described above as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may all be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above integration
  • the unit can be implemented either in the form of hardware or in the form of hardware plus software functional units.
  • the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute It includes the steps of the above method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk or an optical disk and other media that can store program codes.
  • the above-mentioned integrated units of the present application are implemented in the form of software function modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.
  • the computer software products are stored in a storage medium and include several instructions for An electronic device (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk or an optical disk and other mediums that can store program codes.

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Abstract

本申请公开了一种地图构建方法、装置、电子设备及存储介质。其中，方法包括：获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息；所述第一信息表征终端在进行所述设定类型的小区变更事件时采集的关于同一基站的射频指纹信息；基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息；所述第二信息表征所述设定类型的小区变更事件对应的小区边界；在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图。

Description

地图构建方法、装置、电子设备及存储介质
相关申请的交叉引用
本申请基于申请号为202010881278.X，申请日为2020年8月27日的中国专利申请提出，并要求上述中国专利申请的优先权，上述中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及定位技术领域，尤其涉及一种地图构建方法、装置、电子设备及存储介质。
背景技术
相关技术中，射频指纹定位依赖射频指纹地图实现，当定位过程中终端处于移动状态时，信号波动，导致定位精度降低。
发明内容
为解决相关技术问题，本申请实施例提供了一种地图构建方法、装置、电子设备及存储介质。
本申请实施例提供了一种地图构建方法，包括：
获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息；所述第一信息表征终端在进行所述设定类型的小区变更事件时采集的关于同一基站的射频指纹信息；
基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息；所述第二信息表征所述设定类型的小区变更事件对应的小区边界；
在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图。
本申请实施例还提供了一种终端，包括：
第一获取单元，配置为获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息；所述第一信息表征终端在进行所述设定类型的小区变更事件时采集的关于同一基站的射频指纹信息；
确定单元，配置为基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息；所述第二信息表征所述设定类型的小区变更事件对应的小区边界；
添加单元，配置为在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图。
本申请实施例还提供了一种电子设备，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
其中，所述处理器配置为运行所述计算机程序时，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述地图构建方法的步骤。
本申请实施例还提供了一种存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述任一地图构建方法的步骤。
附图说明
图1为本申请一实施例提供的地图构建方法的实现流程示意图；
图2为本申请一实施例提供的LTE通信制式下的小区边界示意图；
图3为本申请一实施例提供的LTE通信制式下的小区选择边界示意图；
图4为本申请一实施例提供的LTE通信制式下的小区重选边界示意图；
图5为本申请一实施例提供的LTE制式下的小区切换边界示意图；
图6为本申请一实施例提供的终端执行小区切换的流程示意图；
图7为本申请一实施例提供的LTE通信制式下的小区重建边界示意图；
图8为本申请一实施例提供的地图构建方法的实现流程示意图；
图9为本申请又一实施例提供的地图构建方法的实现流程示意图；
图10为本申请又一实施例提供的地图构建方法的实现流程示意图；
图11为本申请一实施例提供的终端在设定路线上上报第一信息的示意图；
图12为本申请一实施例提供的地图构建方法的实现流程示意图；
图13为本申请又一实施例提供的地图构建方法的实现流程示意图；
图14为本申请又一实施例提供的地图构建方法的实现流程示意图；
图15为本申请一实施例提供的确定第一信息对应的位置信息的流程示意图；
图16为本申请一实施例提供的地图构建装置的结构示意图；
图17为本申请一实施例提供电子设备的硬件组成结构示意图。
具体实施方式
图1示出了本申请实施例提供的地图构建方法的实现流程。如图1所示，所示方法包括：
S101：获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息；所述第一信息表征终端在进行所述设定类型的小区变更事件时采集的关于同一基站的射频指纹信息。
这里，获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息，第一信息表征终端在进行设定类型的小区变更时间时采集的关于同一基站的射频指纹信息，射频指纹信息可以包括小区的标识和不同位置发射的信号强度等信息。终端可以在设定路线上采集第一信息，例如，可以在地铁线路、高铁线路、飞机线路等移动线路上通过终端收集沿线的射频指纹信息。在实际应用中，设定路线上可能分布不同运营商设立的基站，在利用终端采集第一信息的时候，需要确定设定路线存在的所有运营商网络信息，基于设定路线上运营商的网络信息进行第一信息的采集，利用终端的移动性在设定路线上采集射频指纹，一条线路可以构建多个小区组成的射频指纹地图，有利于能够提高射频指纹的采集效率，在实际应用中，对于同一位置的一个运营商提供的基站的射频指纹信息，需要至少一个具有相同运营商信息的终端进行采集。当终端在设定路线上采集第一信息的时候，由于终端处于移动的状态，因此，终端驻留的小区也会随着终端的移动而发生变化，从而产生不同类型的小区变更事件，在实际应用中，小区变更事件包括小区选择、小区重选、小区切换和小区重建，终端在进行设定类型的小区变更事件时上报的第一信息包括终端在进行小区选择时上报的第一信息、终端在进行小区重选时上报的第一信息、终端在进行小区切换时上报的第一信息、终端在进行小区重建时上报的第一信息。
S102：基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息；所述第二信息表征所述设定类型的小区变更事件对应的小区边界。
这里，基于至少一个终端中的每个终端上报的第一信息，在设定地图数据库中确定出至少一个小区中每个小区对应的第二信息，第二信息表征设定类型的小区变更事件对应的小区边界，其中，小区边界是用以区分不同小区的覆盖范围，通常用信号强度描述一个小区的小区边界。如图2所示，图2为长期演进(LTE，Long Term Evolution)通信制式下的小区边界示意图，基站发射的信号强度随着距离增大而减弱，图中四个信号强度分别为a、b、c、d，由于基站是向多个方向发射信号，产生同一个信号强度值分布在不同的方向上，将这些相同信号强度值连接起来组成一个信号强度的边界。在实际应用中，按照进入和离开小区的方式，每种方式都对应一种小区边界，一个小区的小 区边界包括小区选择边界、小区重选边界、小区切换边界和小区重建边界，其中，小区选择边界和小区重建边界仅涉及一个小区边界，小区重选边界和小区切换边界则包括离开源小区时的小区边界和进入目标小区时的小区边界。在实际应用中，可以根据第三代合作伙伴计划(3GPP，the 3rd Generation Partnership Project)通信协议下终端的移动性特征对上报的第一信息进行边界分割，从而在设定地图数据库中确定出每个小区对应的第二信息，示例地，如图3所示，图3示出了LTE通信制式下的小区选择边界示意图，当终端在开机或脱网之后的重新搜网或者手动触发的搜网操作时，会根据通信协议执行小区选择操作，终端根据用户选择的通信制式搜索附近的小区，如果搜索到的小区的信号强度大于某一门限，则认为这个小区可以驻留，并完成小区选择操作，LTE制式会通过SystemInformationBlockType1广播小区选择门限，具体的协议内容为：cellSelectionInfo
Figure PCTCN2021106557-appb-000001
其中，协议规定的小区选择条件为：
The cell selection criterion S in normal coverage is fulfilled when：
Srxlev>0 AND Squal>0
Where：
Srxlev＝Qrxlevmeas-(Qrxlevmin+Qrxlevminoffest)-Pcompensation-Qoffsettemp
Squal＝Qqualmeas-(Qqualmin+Qqualminoffset)-Qoffsettemp
不同小区广播的参数可能不一样，小区选择的条件也会不一样，在实际应用中，将上述公式描述的信号门限对应的小区边界定义为网络广播的小区选择边界，信号强度低于小区选择门限，则认为终端无法通过小区选择的方式进入这个小区。终端开机或脱网重新搜网时刻实际测量到的信号强度对应的小区边界定义为终端执行小区选择移动性的小区边界。如图4所示，图4示出了LTE通信制式下的小区重选边界示意图。小区重选发生在终端处于空闲状态，即与网络没有数据传输的状态，在当前小区的信号强度低于某一门限时，开始发起重选测量，邻区信号质量在持续的一段时间内比当前小区信号质量高的时候，终端根据协议会触发到邻区的重选。LTE的小区重选涉及同频小区重选、异频小区重选、异系统重选，其中，异系统涉及2G、3G和5G之间的小区重选。小区重选条件需要同时评估本小区和邻小区的信号条件，协议定义的小区重选公式如下：
Rs＝Qmeas,s+QHyst-Qoffsettemp+QoffsetSCPTM
Rn＝Qmeas,n-Qoffset-Qoffsettemp+QoffsetSCPTM
在实际应用中，将协议描述的触发小区重选的信号门限对应的小区边界定义为小区重选边界，小区重选边界包括源小区的重选出小区边界和目标小区的重选入小区边界，针对LTE制式的小区重选边界的类型包括：同频小区重选边界、异频小区重选边界、LTE与2G小区重选边界、LTE与3G小区重选边界、LTE与5G小区重选边界，每种小区重选边界与对应的小区重选的类型存在关联，LTE小区的系统广播里会配置各种重选类型的参数，如表1所示，表1示出了协议规定的全部重选参数，实际LTE小区可能只会广播部分内容，取决于小区周围真实的网络部署。
表1 LTE小区重选参数广播信息简介表
系统消息名称 小区重选参数
SystemInformationBlockType3 LTE小区同频和异频重选参数
SystemInformationBlockType4 LTE同频重选小区列表，加快终端测量
SystemInformationBlockType5 LTE异频重选小区列表，加快终端测量
SystemInformationBlockType6 LTE与3G异系统重选的门限和频点信息
SystemInformationBlockType7 LTE与2G异系统重选的门限和频点信息
SystemInformationBlockType24 LTE与5G异系统重选的门限和频点信息
如图5所示，图5示出了LTE制式下的小区切换边界示意图。小区切换发生在终端处于连接态，与网络存在数据传输的时刻。终端在当前小区的信号质量低于某一门限时，开始发起对目标小区的测量，带目标小区的信号质量高于某一门限时上报测量结果，触发小区切换，如图6所示，图6为 终端执行小区切换的流程示意图。LTE网络会在测量目标网络小区信令流程中配置需要测量的目标小区的制式、频点信息以及切换条件，比如当前小区信号质量低于某一个门限，目标小区的信号高于某一个门限。根据协议的规定，测量配置信息如下：
Figure PCTCN2021106557-appb-000002
在实际应用中，将网络配置的目标小区的切换门小对应的小区边界定义为目标小区切换入边界，终端收到切换命令与目标小区同步之前，在源小区测量到的信号强度对应的小区边界定义为源小区的切换出边界。如图7所示，图7示出LTE通信制式下的小区重建边界示意图，小区重建一般发生在处于连接态的终端已经移动到当前小区的边缘地带，同时又没有及时发起到目标小区的切换的场景，在实际应用中，当测量结果上报不及时，网络没有切换配置，或者网络下发切换命令时，信号强度无法收发数据等原因会导致无法及时切换。在实际应用中，重建的源小区和目标小区是相同的通信制式，将重建时刻当前小区的信号强度对应的小区边界定义为小区重建边界。根据不同小区边界的定义，在每个终端上报的第一信息中，确定设定类型的小区变更事件对应的小区边界，从而在设定地图数据库中确定至少一个小区中每个小区对应的第二信息。
在一实施例中，如图8所示，所述基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息时，所述方法包括：
S801：在所述设定地图数据库中确定目标小区；所述目标小区与第一信息对应的小区为相同的小区。
这里，在设定地图数据库中确定目标小区，其中，目标小区与第一信息对应的小区为相同的小区。在实际应用中，不同小区对应的第二信息不相同，需要在设定数据库中确定与第一信息对应的小区相同的目标小区，才能基于第一信息，确定目标小区对应的第二信息。
在一实施例中，所述在所述设定地图数据库中确定目标小区，包括以下之一：
在所述设定地图数据库中，将与所述第一信息具备相同小区标识的小区确定为所述目标小区；
基于所述第一信息对应的小区的相邻小区，在所述设定地图数据库中确定目标小区；所述相邻小区基于第一信息的上报时间确定。
这里，当第一信息具备小区标识的时候，在设定地图数据库中，将与第一信息具备相同小区标识的小区确定为目标小区，在实际应用中，小区标识可以为全球小区识别码(CGI，Cell Global Identifier)，CGI是用来识别一个小区所覆盖的区域，通常由移动国家码(MCC，Mobile Country Code)、移动网络号码(MNC，Mobile Network Code)、小区码(CI，Cell Identifier)、物理小区标识(PCI，Physical Cell Identifier)以及频点组成的标识，其中，在LTE制式中，可以通过SystemInformationBlockType1广播查询CGI，内容如下：
Figure PCTCN2021106557-appb-000003
在确定第一信息的小区标识之后，在设定地图数据库中确定目标小区。在实际应用中，还可能存在在第一信息不具备小区标识的情况，可以基于第一信息对应的小区的相邻小区，在设定数据库中确定目标小区，相邻小区为第一信息的上报时间确定的。在实际应用中，当终端在设定路线上采集第一信息的时候，例如，终端在设定的一条地铁路线上采集第一信息的时候，由于地铁路线是固定的，设定地图数据库中存储的设定地铁路线上的小区与终端在地铁路线上移动时接入的小区也是 相同的，因此，可以通过终端的上报时间序列，根据第一信息的上报时间，将在上报时间序列中，紧邻第一信息的上报时间对应的小区确定为第一信息对应的小区的相邻小区，借助相邻小区辅助判断设定地图数据库中的目标小区，示例地，设定地图数据库中存储一条地铁线路上的小区分布，分别为小区A、小区B、小区C，当第一信息对应的小区的相邻小区为设定地图数据库中的小区A与小区C的时候，可以确定小区B为与第一信息对应的小区相同的小区。在实际应用中，还可以通过第一信息对应的小区的前后的若干个小区信息，在设定地图数据库中确定目标小区。
在上述实施例中，在设定地图数据库中确定目标小区时，可以通过在设定地图数据库中，将与第一信息具备相同小区标识的小区确定为目标小区，或，基于第一信息对应的小区的相邻小区，在设定地图数据库中确定目标小区，相邻小区为第一信息的上报时间确定的，从而能够通过不同的方法在设定地图数据库中确定目标小区，提高了射频指纹地图的构建效率。
在一实施例中，所述在所述设定地图数据库中，将与第一信息具备相同小区标识的小区确定为所述目标小区，包括：
在所述设定地图数据库不存在所述第一信息对应的小区标识的情况下，在所述设定地图数据库中增添所述第一信息对应的小区标识的小区。
这里，当第一信息具备小区标识的时候，根据第一信息的小区标识，在设定地图数据库查询对应的小区，当在设定地图数据库中不能查询到的时候，说明这个小区是第一次添加的，在设定地图数据库中增加一个与第一信息具备相同小区标识的目标小区，使得能够将第一信息存储到设定数据库中对应的目标小区中。
S802：基于对应的第一信息对所述目标小区对应的第三信息进行修正，确定出所述目标小区对应的第二信息；其中，
所述第三信息表征对应的小区在所述设定地图数据库中设定的小区边界。
这里，基于对应的第一信息对目标小区对应的第三信息进行修正，确定出目标小区对应的第二信息，其中，第三信息表征对应的小区在设定地图数据库中设定的小区边界，在实际应用中，设定地图数据库中设定的小区边界通常是基于运营商提供的网络信息确定的，终端上报的第一信息中包含的边界信息可能与设定地图数据库中小区对应的第三信息不相同，因此需要根据对应的第一信息对目标小区对应的第三信息进行修正，基于修正后的第三信息，确定目标小区对应的第二信息。
在上述实施例中，在设定地图数据库中确定目标小区，目标小区与第一信息对应的小区为相同的小区，基于对应的第一信息对目标小区对应的第三信息进行修正，确定出目标小区对应的第二信息，其中，第三信息表征对应的小区在设定地图数据库中设定的小区边界，从而能够基于上报的射频指纹信息对设定地图数据库中的边界信息进行修正，提高射频指纹地图的精度，从而有利于提高定位的准确性。
在一实施例中，如图9所示，所述基于对应的第一信息对所述目标小区对应的第三信息进行修正，包括：
S901：基于所述小区变更事件的类型及第一信息中的信号对应强度满足的设定条件，确定对应操作；所述对应操作包括第一操作和第二操作。
这里，基于小区变更时间的类型及第一信息中的信号对应强度满足的设定条件，确定对应操作，其中，对应操作是指对第三信息进行修正的方法，包括第一操作和第二操作。在实际应用中，需要通过两个维度选择对目标小区对应的第三信息的修正方法，包括需要判断小区变更事件的类型以及第一信息对应的信号强度满足的设定条件，从而确定对应的修改操作。
在一实施例中，如图10所示，所述基于所述小区变更事件的类型及第一信息中的信号强度对应满足的设定条件，确定对应操作，包括：
S1001：在所述第一信息对应的信号强度满足设定条件的情况下，确定对应的操作为第一操作。
这里，终端在不同的小区变更事件的类型所上报的第一信息对应的信号强度需要满足的设定条件是不相同的。在实际应用中，当小区变更类型为第一类型的时候，其中，第一类型表示小区变更类型为小区选择的时候，所需满足的设定条件为第一信息对应的信号强度与第三信息对应的信号强度不相同，当第一信息对应的信号强度满足设定条件的情况下，对应的操作为第一操作。当小区变更类型为第二类型，其中，第二类型表征小区变更类型为小区重建、小区重选和小区切换中的任意一种类型的时候，所需满足的设定条件为第一信息对应的信号强度比第三信息对应的信号强度弱，当第一信息对应的信号强度满足预设条件时，对应的操作为第一操作。在实际应用中，由于终端射频能力的差异，不同终端测量的信号强度可能会有波动，导致终端在不同的位置进行小区变更事件， 图11示出了终端在设定路线上上报第一信息的示意图，终端采集的第一信息与道路宽度有关，最终会呈现一个窄条状的第一信息，第二类型的小区变更事件会发生在特定区域，如果终端进入第二类型的小区变更事件对应的小区边界，终端会越来越靠近第二类型的小区变更事件后需要驻留的小区，信号强度会逐渐增大，因此，当第一信息对应的小区边界对应的信号强度比第三信息对应的信号强度强，则说明第三信息中包含了第一信息对应的小区边界，当第一信息对应的小区边界对应的信号强度比设定数据库中设定的目标小区的小区边界对应的强度弱，则说明第一信息对应的小区边界没有包含在第三信息内，因此，需要对第三信息进行修正。在实际应用中，当小区变更类型为小区重选或者小区切换的时候，由于这两种小区变更类型对应的小区边界涉及源小区与驻留小区之间的转移，因此在确定第一信息对应的信号强度是否满足预设条件的时候，还需要判断源小区与驻留小区之间的关系。在实际应用中，第一信息对应的小区为驻留小区，第一信息对应的源小区为第一源小区，终端是从第一源小区转移到驻留小区，因此第一源小区属于离开小区，驻留小区属于进入小区。首先，需要判断第一源小区是否存在于设定地图数据库中，如果在设定地图数据库中存在第一源小区对应的第二源小区的时候，根据设定地图数据库存储的信息，判断第二源小区与目标小区之间是否存在与第一信息对应的小区变更事件相同的小区变更事件，在第二源小区与目标小区之间是否存在与第一信息对应的小区变更事件相同的小区变更事件的情况下，判断目标小区是否属于离开小区，在所有判断条件成立的情况下，再根据第一信息对应的信号强度满足的设定条件，确定对应的操作。
S1002：在所述第一信息对应的信号强度不满足设定条件的情况下，确定对应的操作为第二操作。
这里，不同小区变更事件的类型所对应的设定条件是不相同的，其中，设定条件中可能包含多个判断条件，当出现不满足所有判断条件中任一个判断条件的情况下，此时对应的操作为第二操作。
S902：通过确定出的对应操作，对所述目标小区对应的第三信息进行修正。
其中，所述第一操作表征由第一信息确定出的所述目标小区的小区边界替换所述设定地图数据库中设定的所述目标小区的小区边界；所述第二操作表征将由第一信息确定出的所述目标小区的小区边界添加至所述设定地图数据库中。
这里，通过确定出的对应操作，对目标小区对应的第三信息进行修正，其中，当第一信息对应的信号强度满足的设定条件确定出的操作为第一操作的时候，说明第三信息与第一信息不相同，需要通过第一操作对第三信息进行修正，第一操作表征由第一信息确定出的目标小区的边界替换设定地图数据库中设定的目标小区的小区边界。当第一信息对应的信号强度满足的设定条件确定出的操作为第二操作的时候，说明设定的地图数据库中的目标小区不存在第一信息对应的小区边界，需要通过第二操作对目标小区的第三信息进行修正，第二操作表征将由第一信息确定出的目标小区的小区添加至设定地图数据库中。在实际应用中，当基于第一信息对应的小区选择边界通过第一操作对目标小区对应的第三信息进行修正的时候，是将第一信息中的网络广播的小区选择边界替换设定数据库中设定的目标小区的小区广播的小区选择边界。当第一信息对应的小区重选边界或者小区切换边界的时候，通过第一操作或者第二操作对目标小区对应的第三信息进行修正的时候，需要将小区边界涉及的小区离开边界与小区进入边界替换设定地图数据库中设定的目标小区的小区边界或者添加至设定地图数据库中。
在上述实施例中，基于小区变更事件的类型及第一信息中的信号强度对应满足的设定条件，确定对应操作，对应操作包括第一操作和第二操作，通过确定出的对应操作，对目标小区对应的第三信息进行修正，其中，第一操作表征由第一信息确定出的目标小区的小区边界替换设定地图数据库中设定的目标小区的小区边界，第二操作表征将由第一信息确定出的目标小区的小区边界添加至设定地图数据库中，从而能够根据收集的射频指纹信息对小区边界进行修正，有利于根据收集的射频指纹信息构建射频指纹地图，提高了构建的射频指纹地图的精度。
S103：在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图。
这里，将至少一个终端中每个终端上报的第一信息添加到确定出第二信息的设定地图数据库中，得到设定类型的小区变更时间对应的视频指纹地图。在实际应用中，存在4种不同小区边界类型，那么一个小区对应的进入小区边界与离开小区边界的类型一共有16种，根据确定出的第二信息将终端在进行设定类型的小区变更事件时上报的第一信息添加至设定地图数据库中，能够构建小区在不同变更事件时对应的射频指纹地图，从而有利于提高定位的精度和可靠性。
在上述实施例中，获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息，第一信息表征终端在进行设定类型的小区变更事件时采集的关于同一基站的射频指纹信息，基于至少一个终端中的每个终端上报的第一信息，在设定地图数据库中确定出至少一个小区中每个 小区对应的第二信息，第二信息表征设定类型的小区变更事件对应的小区边界，在确定出第二信息的设定地图数据库中添加至少一个终端中的每个终端上报的第一信息，得到设定类型的小区变更事件对应的视频指纹地图，从而在射频指纹地图中根据小区的小区边界添加对应的射频指纹，射频指纹特征是通过终端采集得到的，从而降低了获取射频指纹特征的难度，还能够构建不同类型的小区变更事件对应的射频指纹地图，使得定位过程中终端处于移动状态的时候，降低了信号波动误差对定位结果的影响，从而提高射频指纹定位的精度和可靠性。
在一实施例中，如图12所示，所述在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图时，所述方法包括：
S1201：确定终端在移动过程中的第四信息；所述第四信息表征终端在对应的小区的第一驻留时长。
这里，确定终端在移动过程中的第四信息，其中，第四信息表征终端在对应的小区的第一驻留时长，第四信息可以通过终端进行两次小区变更事件的时间间隔来确定。
S1202：确定所述第一驻留时长与对应的小区的设定驻留时长的第一时间差值。
这里，根据第一驻留时长与对应的小区的设定驻留时长，确定第一驻留时长与对应的小区的设定驻留时长的第一时间差值。
S1203：在所述第一时间差值小于第一设定值的情况下，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息。
这里，在第一时间差值小于第一设定值的情况下，可以认为获取的第一信息是可靠的，在确定出第二信息的设定地图数据库中添加终端上报的第一信息。在实际应用中，在第一信息对应的小区边界与设定地图数据库中对应小区的小区边界相同的情况下，第一信息是加入到设定地图数据库中第二信息对应的小区下。在实际应用中，采集到的第一信息是一个小区下的部分信息，通过对一个小区进行多次采集，将采集到的第一信息与设定地图数据库中对应小区下的射频指纹进行合并，从而能够构建完整的射频指纹。
在一实施例中，所述在所述第一时间差值小于第一设定值的情况下，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息，包括：
根据所述第二信息对应的小区在所述设定地图数据库中第六信息的存储情况，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息；所述第六信息表征所述设定地图数据库中预先存储的射频指纹信息。
这里，在向设定地图数据库中添加终端上报的第一信息的过程中，还可以根据设定地图数据库对小区的射频指纹信息的存储情况，将添加的第一信息与设定数据库中小区预先存储的射频指纹信息进行合并。具体地，当设定地图数据库中第二信息对应的小区有预先存储的射频指纹信息的时候，从采集得到第一信息的时刻开始，按照时间，将第一信息与设定地图数据库中第二信息对应的小区预先存储的射频指纹信息进行合并，构建设定类型的小区变更事件对应的射频指纹地图。当设定地图数据库中第二信息对应的小区没有预先存储的射频指纹信息的时候，将第一信息加入到设定地图数据库中第二信息对应的小区中。
在一实施例中，所述方法还包括：
确定所述设定地图数据库中每个小区添加所述第一信息的频数。
这里，在将第一信息加入设定地图数据库中第二信息对应的小区中的时候，还可以确定基站的地图中第二信息对应的小区存储第一信息的频数，也就是说确定设定地图数据库中每个小区在不同边界类型下存储的第一信息的频数，由于进行存储的第一信息是终端在进行设定类型的小区变更事件时上报的，从而能够根据基站的地图中第二信息对应的小区存储第一信息的频数，能够确定设定地图数据库中每个小区进行设定类型的小区变更事件的发生频率。例如，当小区重建边界对应的小区存储第一信息的频率过高，说明这个小区周围的网络覆盖规划不合理，可能存在盲区，从而可以及时调整网络规划。另外，射频指纹地图中包含了不同运营商的小区的小区边界，其中，小区边界可以反映不同的小区变更事件，从而，在终端处于单卡模式的情况下，根据射频指纹地图中的小区变更事件，接入高质量的通信小区中，例如，根据射频指纹地图，能够确发生从LTE到5G的小区重选的位置信息，从而终端可以根据确定的位置信息及时重选到5G小区中。当终端处于双卡模式的情况下，在终端接入的小区为A卡运营商的小区的时候，可以直接根据射频指纹地图检测是否存 在更高质量的B卡运营商的小区，根据检测结果进行切换操作，提高终端的数据传输速率。
在上述实施例中，确定终端在移动过程中的第四信息，第四信息表征终端在对应的小区的第一驻留时长，确定第一驻留时长与对应的小区的设定驻留时长的第一时间差值，在第一时间差值小于第一设定值的情况下，在确定出第二信息的设定地图数据库中添加终端上报的第一信息，从而能够在确定采集的射频指纹的可靠性的情况下，构建完整的射频指纹地图，从而提高了射频指纹地图的可靠性与完整性。
在一实施例中，如图13所示，所述方法还包括：
S1301：在所述第一时间差值大于所述第一设定值的情况下，在设定时长内获取第五信息；所述第五信息为所述终端上报的对应的小区的射频指纹信息
这里，在第一时间差值大于第一设定值的情况下，说明获取的第一信息的可靠性不够高，需要对第一信息的可靠性进行考察，通过在设定时长内获取的第五信息，其中，第五信息是为终端上报的对应的小区的射频指纹信息，也就是说，第五信息与第一信息都属于相同小区的射频指纹信息。
S1302：在基于所述第五信息确定出的第一参数与对应的小区设定的第一参数匹配的情况下，对所述设定地图数据库中对应的第二信息进行更新；其中，
所述第一参数表征对应小区内各个位置的射频信号强度。
这里，在第五信息确定出的第一参数与对应的小区设定的第一参数匹配的情况下，说明射频指纹信息发生了变化，需要对设定地图数据库中对应的第二信息进行更新，其中，第一参数表征对应小区内各个位置的射频信号强度。在实际应用中，由于运营商的网络部署可能会随着时间发生变化，以A小区为例，当运营商对A小区进行升级改造，升级后的A小区由原来的2根天线变成了4根天线，这是，终端接入到A小区时采集到的第一信息与存储在设定地图数据库中A小区的射频指纹信息不相同，需要对存储在设定地图数据库中的射频指纹进行更新，因此，在第五信息确定出的第一参数与对应的小区设定的第一参数匹配的情况下，需要对设定地图数据库中对应的第二信息进行更新，从而能够根据网络部署的状况，对设定地图数据库进行更新。在实际应用中，当对地图设定数据库中对应的第二信息进行更新的时候，还可以将第五信息替换到第二信息对应的小区中，从而能够将射频指纹信息进行更新。
在上述实施例中，在第一时间差值大于第一设定值的情况下，在设定时长内获取第五信息，第五信息为终端上报的对应的小区的射频指纹信息，在基于第五信息确定出的第一参数与对应的小区设定的第一参数匹配的情况下，对设定地图数据库中对应的第二信息进行更新，其中，第一参数表征对应小区内各个位置的射频指纹信号强度，从而能够识别网络部署更新的情况，能够根据网络部署的状况，及时更新射频指纹地图，提高了射频指纹地图的时效性，从而提高了射频指纹地图的精确度。
在一实施例中，如图14所示，所述在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图时，所述方法包括：
S1401：确定所述至少一个终端中移动方向相同的第一终端与第二终端的距离；其中，在所述移动方向上，所述第一终端与所述第二终端的间距固定，且所述第二终端位于所述第一终端的后方。
这里，设置至少两个终端在相同的设定路线上收集第一信息，其中，至少两个终端中的每个终端具有相同的运营商与移动方向，并且，在至少两个终端的移动方向上，第二终端位于第一终端的后方。由于设定路线通常为公交路线、地铁路线、高铁路线或者飞机路线，那么至少两个终端中每个终端之间的距离可以看作是不变的。
S1402：根据所述第一终端与第二终端上报关于相同小区的第一信息的时间，确定所述第二终端的移动速度。
这里，根据第一终端与第二终端上报关于相同小区的第一信息的时间，确定第二终端的移动速度，在实际应用中，第一终端与第二终端都位于相同的设定路线上，两个终端经过的小区都是相同的，由于第一终端与第二终端之间存在间隔距离，因此，在经过相同的小区的时候，是第一终端为前，第二终端在后，从而第一终端与第二终端经过相同的位置的时候，存在时间间隔，在实际应用中，这个时间间隔可以通过以第一终端经过某个小区的时间与第二终端经过相同小区的时间之间组成的时间间隔确定得到。在实际应用中，可以通过第一终端获取的第一信息与第二终端获取的第一信息进行比较，例如，提取第一终端获取的第一信息与第二终端获取的第一信息的特征，包括小区边界、信号强度特征，当这些特征相同的时候，说明第一终端与第二终端接入相同的小区。
S1403：通过所述第二终端的移动速度与设定位置点，确定所述第二终端上报的第一信息对应的 位置信息。
这里，通过第二终端的移动速度与设定位置点，确定第二终端上报的第一信息对应的位置信息，其中，根据第一终端与第二终端上报关于相同小区的第一信息的时间组成的时间间隔，以及第一终端与第二终端的距离确定得到第二终端的移动速度。根据第二终端的移动速度与设定位置点，能够确定第二终端上报的第一信息对应的位置信息。如图15所示，图15示出了确定第一信息对应的位置信息的流程示意图。第一终端与第二终端均位于相同的地铁列车内，其中，第一终端位于列车的车头位置，在第一终端的移动方向上，第二终端位于第一终端的后方，且相隔的距离为d。列车启动之后，第一终端在t1时刻采集到第一信息f1，第二终端采集到相同的第一信息f1的时间为t2时刻，并且第一终端在t2时刻采集到的第一信息为f2，可以得到平均速度v_1＝d/(t2-t1)，根据平均速度v_1，可以确定第一信息与设定位置点的距离，设定位置点可以为设定路线中的地标，例如，建筑物、地铁车头站台、车位站台，通过确定计算第一信息与设定位置点的相对位置来表征第一信息对应的位置信息，比如通过离站台的距离确定第一信息对应的位置信息。
S1404：基于所述第二终端上报的第一信息对应的位置信息，在确定出第二信息的所述设定地图数据库中添加所述第二终端上报的所述第一信息。
这里，基于第二终端上报的第一信息对应的位置信息，在确定出第二信息的设定地图数据库中添加第二终端上报的第一信息，从而能够将含有位置信息的第一信息加入到设定地图数据库中，将射频指纹信息与位置信息进行关联，从而能够基于射频指纹地图，根据射频指纹信息确定终端的位置信息。在实际应用中，当终端所处的场景覆盖有全球定位系统(GPS，Global Positioning System)信号的时候，可以通过获取的GPS位置，确定第一信息对应的位置信息，当终端所处的场景没有覆盖GPS信号的时候，例如终端位于地下的地铁道路、隧道等，通过利用设定位置对第一信息的位置信息进行标记，能够在没有覆盖GPS信号的场景获取第一信息对应的位置信息。
在上述实施例中，确定至少一个终端中移动方向相同的第一终端与第二终端的距离，其中，在移动方向上，第一终端与所述第二终端的间距固定，且第二终端位于第一终端的后方，根据第一终端与第二终端上报关于相同小区的第一信息的时间，确定第二终端的移动速度，通过第二终端的移动速度与设定位置点，确定第二终端上报的第一信息对应的位置信息，基于第二终端上报的第一信息对应的位置信息，在确定出第二信息的设定地图数据库中添加第二终端上报的第一信息，从而能够确定射频指纹对应的位置信息，避免在没有GPS信号覆盖的地方无法对射频指纹进行位置标定，提高了射频指纹地图的精确度。
为实现本申请实施例的方法，本申请实施例还提供了一种地图构建装置，如图16所示，该装置包括：
第一获取单元1601，配置为获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息；所述第一信息表征终端在进行所述设定类型的小区变更事件时采集的关于同一基站的射频指纹信息；
确定单元1602，配置为基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息；所述第二信息表征所述设定类型的小区变更事件对应的小区边界；
添加单元1603，配置为在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图。
在一实施例中，所述确定单元1602在基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息时，配置为：
在所述设定地图数据库中确定目标小区；所述目标小区与第一信息对应的小区为相同的小区；
基于对应的第一信息对所述目标小区对应的第三信息进行修正，确定出所述目标小区对应的第二信息；其中，
所述第三信息表征对应的小区在所述设定地图数据库中设定的小区边界。
在一实施例中，所述确定单元1602在所述设定地图数据库中确定目标小区时，配置为以下之一：
在所述设定地图数据库中，将与第一信息具备相同小区标识的小区确定为所述目标小区；
基于所述第一信息对应的小区的相邻小区，在所述设定地图数据库中确定目标小区；所述相邻小区基于第一信息的上报时间确定。
在一实施例中，所述确定单元1602在所述设定地图数据库中，将与第一信息具备相同小区标识的小区确定为所述目标小区时，配置为：
在所述设定地图数据库不存在所述第一信息对应的小区标识的情况下，在所述设定地图数据库 中增添所述第一信息对应的小区标识的小区。
在一实施例中，所述确定单元1602在基于对应的第一信息对所述目标小区对应的第三信息进行修正，确定出所述目标小区对应的第二信息时，配置为：
基于所述小区变更事件的类型及第一信息中的信号强度对应满足的设定条件，确定对应操作；所述对应操作包括第一操作和第二操作；
通过确定出的对应操作，对所述目标小区对应的第三信息进行修正；
其中，所述第一操作表征由第一信息确定出的所述目标小区的小区边界替换所述设定地图数据库中设定的所述目标小区的小区边界；所述第二操作表征将由第一信息确定出的所述目标小区的小区边界添加至所述设定地图数据库中。
在一实施例中，所述确定单元1602在基于所述小区变更事件的类型及第一信息中的信号强度对应满足的设定条件，确定对应操作时，配置为：
在所述第一信息对应的信号强度满足设定条件的情况下，确定对应的操作为第一操作；
在所述第一信息对应的信号强度不满足设定条件的情况下，确定对应的操作为第二操作。
在一实施例中，所述添加单元1603在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图时，配置为：
确定终端在移动过程中的第四信息；所述第四信息表征终端在对应的小区的第一驻留时长；
确定所述第一驻留时长与对应的小区的设定驻留时长的第一时间差值；
在所述第一时间差值小于第一设定值的情况下，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息。
在一实施例中，所述装置还包括：
第二获取单元，用于在所述第一时间差值大于所述第一设定值的情况下，在设定时长内获取第五信息；所述第五信息为所述终端上报的对应的小区的射频指纹信息；
替换单元，在基于所述第五信息确定出的第一参数与对应的小区设定的第一参数匹配的情况下，对所述设定地图数据库中对应的第二信息进行更新；其中，
所述第一参数表征对应小区内各个位置的射频信号强度。
在一实施例中，所述添加单元1603在所述第一时间差值小于第一设定值的情况下，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息时，配置为：
根据所述第二信息对应的小区在所述设定地图数据库中第六信息的存储情况，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息；所述第六信息表征所述设定地图数据库中预先存储的射频指纹信息。
在一实施例中，所述添加单元1603还配置为：
确定所述设定地图数据库中每个小区添加所述第一信息的频数。
在一实施例中，所述添加单元1603在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图时，配置为：
确定所述至少一个终端中移动方向相同的第一终端与第二终端的距离；其中，在所述移动方向上，所述第一终端与所述第二终端的间距固定，且所述第二终端位于所述第一终端的后方；
根据所述第一终端与第二终端上报关于相同小区的第一信息的时间，确定所述第二终端的移动速度；
通过所述第二终端的移动速度与设定位置点，确定所述第二终端上报的第一信息对应的位置信息；
基于所述第二终端上报的第一信息对应的位置信息，在确定出第二信息的所述设定地图数据库中添加所述第二终端上报的所述第一信息。
实际应用时，第一获取单元1601、确定单元1602、添加单元1603可由地图构建装置中的处理器来实现。当然，处理器需要运行存储器中存储的程序来实现上述各程序模块的功能。
需要说明的是，上述图16实施例提供的地图构建装置在进行构建地图时，仅以上述各程序模块的划分进行举例说明，实际应用中，可以根据需要而将上述处理分配由不同的程序模块完成，即将装置的内部结构划分成不同的程序模块，以完成以上描述的全部或者部分处理。另外，上述实施例提供的地图构建装置与地图构建方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
基于上述程序模块的硬件实现，且为了实现本申请实施例的方法，本申请实施例还提供了一种电子设备，图17为本申请实施例电子设备的硬件组成结构示意图，如图17所示，电子设备包括：
通信接口1，能够与其它设备比如网络设备等进行信息交互；
处理器2，与通信接口1连接，以实现与其它设备进行信息交互，用于运行计算机程序时，执行上述一个或多个技术方案提供的地图构建方法。而所述计算机程序存储在存储器3上。
当然，实际应用时，电子设备中的各个组件通过总线系统4耦合在一起。可理解，总线系统4用于实现这些组件之间的连接通信。总线系统4除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图17中将各种总线都标为总线系统4。
本申请实施例中的存储器3用于存储各种类型的数据以支持电子设备的操作。这些数据的示例包括：用于在电子设备上操作的任何计算机程序。
可以理解，存储器3可以是易失性存储器或非易失性存储器，也可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(ROM，Read Only Memory)、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本申请实施例描述的存储器3旨在包括但不限于这些和任意其它适合类型的存储器。
上述本申请实施例揭示的方法可以应用于处理器2中，或者由处理器2实现。处理器2可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器2中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器2可以是通用处理器、DSP，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器2可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器3，处理器2读取存储器3中的程序，结合其硬件完成前述方法的步骤。
处理器2执行所述程序时实现本申请实施例的各个方法中的相应流程，为了简洁，在此不再赘述。
在示例性实施例中，本申请实施例还提供了一种存储介质，即计算机存储介质，具体为计算机可读存储介质，例如包括存储计算机程序的存储器3，上述计算机程序可由处理器2执行，以完成前述方法所述步骤。计算机可读存储介质可以是FRAM、ROM、PROM、EPROM、EEPROM、Flash Memory、磁表面存储器、光盘、或CD-ROM等存储器。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置、电子设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本申请各实施例中的各功能单元可以全部集成在一个处理单元中，也可以是各单元分 别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本申请上述集成的单元如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台电子设备(可以是个人计算机、服务器、或者网络设备等)执行本申请各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
需要说明的是：“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
另外，本申请实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (20)

  1. 一种地图构建方法，包括：
    获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息；所述第一信息表征终端在进行所述设定类型的小区变更事件时采集的关于同一基站的射频指纹信息；
    基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息；所述第二信息表征所述设定类型的小区变更事件对应的小区边界；
    在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图。
  2. 根据权利要求1所述的地图构建方法，其中，所述基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息时，所述方法包括：
    在所述设定地图数据库中确定目标小区；所述目标小区与第一信息对应的小区为相同的小区；
    基于对应的第一信息对所述目标小区对应的第三信息进行修正，确定出所述目标小区对应的第二信息；其中，
    所述第三信息表征对应的小区在所述设定地图数据库中设定的小区边界。
  3. 根据权利要求2所述的地图构建方法，其中，所述在所述设定地图数据库中确定目标小区，包括以下之一：
    在所述设定地图数据库中，将与第一信息具备相同小区标识的小区确定为所述目标小区；
    基于所述第一信息对应的小区的相邻小区，在所述设定地图数据库中确定目标小区；所述相邻小区基于第一信息的上报时间确定。
  4. 根据权利要求3所述的地图构建方法，其中，所述在所述设定地图数据库中，将与第一信息具备相同小区标识的小区确定为所述目标小区，包括：
    在所述设定地图数据库不存在所述第一信息对应的小区标识的情况下，在所述设定地图数据库中增添所述第一信息对应的小区标识的小区。
  5. 根据权利要求2所述的地图构建方法，其中，所述基于对应的第一信息对所述目标小区对应的第三信息进行修正，包括：
    基于所述小区变更事件的类型及第一信息中的信号强度对应满足的设定条件，确定对应操作；所述对应操作包括第一操作和第二操作；
    通过确定出的对应操作，对所述目标小区对应的第三信息进行修正；
    其中，所述第一操作表征由第一信息确定出的所述目标小区的小区边界替换所述设定地图数据库中设定的所述目标小区的小区边界；所述第二操作表征将由第一信息确定出的所述目标小区的小区边界添加至所述设定地图数据库中。
  6. 根据权利要求5所述的地图构建方法，其中，所述基于所述小区变更事件的类型及第一信息中的信号强度对应满足的设定条件，确定对应操作，包括：
    在所述第一信息对应的信号强度满足设定条件的情况下，确定对应的操作为第一操作；
    在所述第一信息对应的信号强度不满足设定条件的情况下，确定对应的操作为第二操作。
  7. 根据权利要求1所述的地图构建方法，其中，所述在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图时，所述方法包括：
    确定终端在移动过程中的第四信息；所述第四信息表征终端在对应的小区的第一驻留时长；
    确定所述第一驻留时长与对应的小区的设定驻留时长的第一时间差值；
    在所述第一时间差值小于第一设定值的情况下，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息。
  8. 根据权利要求7所述的地图构建方法，其中，所述方法还包括：
    在所述第一时间差值大于所述第一设定值的情况下，在设定时长内获取第五信息；所述第五信息为所述终端上报的对应的小区的射频指纹信息；
    在基于所述第五信息确定出的第一参数与对应的小区设定的第一参数匹配的情况下，对所述设定地图数据库中对应的第二信息进行更新；其中，
    所述第一参数表征对应小区内各个位置的射频信号强度。
  9. 根据权利要求7所述的地图构建方法，其中，所述在所述第一时间差值小于第一设定值的情况下，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息，包括：
    根据所述第二信息对应的小区在所述设定地图数据库中第六信息的存储情况，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息；所述第六信息表征所述设定地图数据库中预先存储的射频指纹信息。
  10. 根据权利要求7所述的地图构建方法，其中，所述方法还包括：
    确定所述设定地图数据库中每个小区添加所述第一信息的频数。
  11. 根据权利要求1所述的地图构建方法，其中，所述在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图时，所述方法包括：
    确定所述至少一个终端中移动方向相同的第一终端与第二终端的距离；其中，在所述移动方向上，所述第一终端与所述第二终端的间距固定，且所述第二终端位于所述第一终端的后方；
    根据所述第一终端与第二终端上报关于相同小区的第一信息的时间，确定所述第二终端的移动速度；
    通过所述第二终端的移动速度与设定位置点，确定所述第二终端上报的第一信息对应的位置信息；
    基于所述第二终端上报的第一信息对应的位置信息，在确定出第二信息的所述设定地图数据库中添加所述第二终端上报的所述第一信息。
  12. 一种地图构建装置，包括：
    第一获取单元，配置为获取至少一个终端中的每个终端在进行设定类型的小区变更事件时上报的第一信息；所述第一信息表征终端在进行所述设定类型的小区变更事件时采集的关于同一基站的射频指纹信息；
    确定单元，配置为基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息；所述第二信息表征所述设定类型的小区变更事件对应的小区边界；
    添加单元，配置为在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图。
  13. 根据权利要求12所述的地图构建装置，其中，所述确定单元在基于所述至少一个终端中的每个终端上报的所述第一信息，在设定地图数据库中确定出所述至少一个小区中每个小区对应的第二信息时，还配置为：
    在所述设定地图数据库中确定目标小区；所述目标小区与第一信息对应的小区为相同的小区；
    基于对应的第一信息对所述目标小区对应的第三信息进行修正，确定出所述目标小区对应的第二信息；其中，
    所述第三信息表征对应的小区在所述设定地图数据库中设定的小区边界。
  14. 根据权利要求13所述的地图构建装置，其中，所述确定单元在所述设定地图数据库中确定目标小区时，还配置为以下之一：
    在所述设定地图数据库中，将与第一信息具备相同小区标识的小区确定为所述目标小区；
    基于所述第一信息对应的小区的相邻小区，在所述设定地图数据库中确定目标小区；所述相邻小区基于第一信息的上报时间确定。
  15. 根据权利要求14所述的地图构建装置，其中，所述确定单元在所述设定地图数据库中，将与第一信息具备相同小区标识的小区确定为所述目标小区时，还配置为：
    在所述设定地图数据库不存在所述第一信息对应的小区标识的情况下，在所述设定地图数据库中增添所述第一信息对应的小区标识的小区。
  16. 根据权利要求13所述的地图构建装置，其中，所述确定单元在基于对应的第一信息对 所述目标小区对应的第三信息进行修正时，还配置为：
    基于所述小区变更事件的类型及第一信息中的信号强度对应满足的设定条件，确定对应操作；所述对应操作包括第一操作和第二操作；
    通过确定出的对应操作，对所述目标小区对应的第三信息进行修正；
    其中，所述第一操作表征由第一信息确定出的所述目标小区的小区边界替换所述设定地图数据库中设定的所述目标小区的小区边界；所述第二操作表征将由第一信息确定出的所述目标小区的小区边界添加至所述设定地图数据库中。
  17. 根据权利要求16所述的地图构建装置，其中，所述确定单元在基于所述小区变更事件的类型及第一信息中的信号强度对应满足的设定条件，确定对应操作时，还配置为：
    在所述第一信息对应的信号强度满足设定条件的情况下，确定对应的操作为第一操作；
    在所述第一信息对应的信号强度不满足设定条件的情况下，确定对应的操作为第二操作。
  18. 根据权利要求12所述的地图构建装置，其中，所述添加单元在在确定出第二信息的所述设定地图数据库中添加所述至少一个终端中的每个终端上报的所述第一信息，得到所述设定类型的小区变更事件对应的射频指纹地图时，还配置为：
    确定终端在移动过程中的第四信息；所述第四信息表征终端在对应的小区的第一驻留时长；
    确定所述第一驻留时长与对应的小区的设定驻留时长的第一时间差值；
    在所述第一时间差值小于第一设定值的情况下，在确定出第二信息的所述设定地图数据库中添加终端上报的所述第一信息。
  19. 一种电子设备，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
    其中，所述处理器用于运行所述计算机程序时，执行权利要求1至11任一项所述方法的步骤。
  20. 一种存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至11任一项所述方法的步骤。
PCT/CN2021/106557 2020-08-27 2021-07-15 地图构建方法、装置、电子设备及存储介质 WO2022042118A1 (zh)

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