CN115413025A - Terminal positioning method and device, positioning equipment and storage medium - Google Patents

Terminal positioning method and device, positioning equipment and storage medium Download PDF

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Publication number
CN115413025A
CN115413025A CN202211072381.5A CN202211072381A CN115413025A CN 115413025 A CN115413025 A CN 115413025A CN 202211072381 A CN202211072381 A CN 202211072381A CN 115413025 A CN115413025 A CN 115413025A
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China
Prior art keywords
terminal
base station
determining
positioning
network temporary
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CN202211072381.5A
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Chinese (zh)
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毛敏
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Neuron Information Technology (Chengdu) Co.,Ltd.
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Beijing Neuron Network Technology Co ltd
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Priority to CN202211072381.5A priority Critical patent/CN115413025A/en
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • 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
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Abstract

The embodiment of the application discloses a terminal positioning method, a terminal positioning device, positioning equipment and a storage medium. The method comprises the following steps: establishing a communication channel with a base station, and periodically sending a preset message to a terminal to be positioned through the base station based on a mobile phone number corresponding to the terminal to be positioned; capturing all downlink control information in a downlink channel of a base station in real time in each period of sending a preset message; analyzing each downlink control information, and determining a wireless network temporary identifier of a terminal to be positioned according to an analysis result; based on the wireless network temporary identifier, the simulation base station sends uplink scheduling authorization information to the terminal to be positioned; and receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment. Under the condition of an accident, the user does not need to operate the mobile phone at the moment to send the position of the mobile phone, and the position of the terminal to be positioned can be determined.

Description

Terminal positioning method and device, positioning equipment and storage medium
Technical Field
The embodiment of the application relates to the technical field of positioning, in particular to a terminal positioning method, a terminal positioning device, a positioning device and a storage medium.
Background
At present, there are many ways of positioning a mobile phone, such as base station positioning and GPS positioning, where the base station positioning can estimate the distance between the mobile phone and a base station according to the strength of a signal received by the mobile phone, and determine the position of the mobile phone based on the distance and the position of the base station; GPS positioning measures the distance from a satellite with a known position to a user receiver (i.e., a mobile phone), and combines the data from multiple satellites to determine the position of the mobile phone.
In the above positioning manner, the finally determined position information is stored in the mobile phone of the user side, and needs to be actively sent to the position information acquirer by the user. However, in some sudden accident scenarios, a user may not be able to control the mobile phone and send the location information to the location information acquirer, so that the rescuer may not know the location of the mobile phone quickly and further cannot know the location of the user near the mobile phone quickly, which may cause loss of life safety of the user.
Disclosure of Invention
The embodiment of the application provides a terminal positioning method, a terminal positioning device, positioning equipment and a storage medium, so that the position of a mobile phone terminal can be positioned under the condition that a user cannot control a mobile phone due to an accident.
In a first aspect, an embodiment of the present application provides a terminal positioning method, where the method includes:
establishing a communication channel with a base station, and periodically sending a preset message to a terminal to be positioned through the base station based on a mobile phone number corresponding to the terminal to be positioned;
capturing all downlink control information in a downlink channel of the base station in real time in each period for sending the preset message;
analyzing each downlink control information, and determining a wireless network temporary identifier of the terminal to be positioned according to an analysis result;
based on the wireless network temporary identifier, the simulation base station sends uplink scheduling authorization information to the terminal to be positioned;
and receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment.
In a second aspect, an embodiment of the present application further provides a terminal positioning apparatus, where the terminal positioning apparatus includes:
the message sending module is used for establishing a communication channel with a base station and periodically sending a preset message to the terminal to be positioned through the base station based on a mobile phone number corresponding to the terminal to be positioned;
a capturing module, configured to capture all downlink control information in the downlink channel of the base station in real time in each period in which the preset message is sent;
the analysis module is used for analyzing each downlink control information and determining the wireless network temporary identifier of the terminal to be positioned according to the analysis result;
the base station simulation module is used for simulating a base station to send uplink scheduling authorization information to the terminal to be positioned based on the wireless network temporary identifier;
and the positioning module is used for receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment.
In a third aspect, an embodiment of the present application further provides a positioning apparatus, where the positioning apparatus includes: a housing, a signal transceiving antenna disposed in the housing, one or more processors;
the signal receiving and transmitting antenna is used for communicating with a base station and a mobile phone to be positioned, and the processor is used for executing the terminal positioning method provided by any embodiment of the application.
In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the terminal positioning method according to any embodiment of the present application.
According to the technical scheme of the embodiment of the application, a communication channel between the base station and the base station is established, then the preset message is periodically sent to the terminal to be positioned through the communication channel, all downlink control information in a downlink channel of the base station is captured in real time in each period of sending the preset message, each downlink control information is analyzed, and the wireless network temporary identifier of the terminal to be positioned is determined according to the analysis result. And then based on the wireless network temporary identifier, simulating that the base station wants to send uplink scheduling authorization information to the terminal to be positioned, receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when receiving the uplink data and the current position of the positioning equipment. Based on the method, the wireless network temporary identifier of the terminal to be positioned can be determined by actively sending the preset message, so that the base station can be simulated to send uplink scheduling authorization information to the terminal to be positioned, the terminal to be positioned can autonomously feed back uplink data without user operation, the position of the terminal to be positioned can be determined based on the signal power when the uplink data is received and the current position of the positioning equipment, and based on the method, under the condition that a user cannot control a mobile phone due to an accident, the user does not need to operate the mobile phone at that time to send the position of the terminal to be positioned, the position of the terminal to be positioned held by the user can also be determined, and the life safety of the user is protected.
Drawings
Fig. 1 is a schematic flowchart of a terminal positioning method according to an embodiment of the present application;
fig. 2 is a schematic diagram of determining a position of a terminal to be located according to a first embodiment of the present application;
fig. 3 is a schematic flowchart of determining a radio network temporary identifier of a terminal to be located according to a second embodiment of the present application;
fig. 4 is a schematic structural diagram of a terminal positioning device according to a third embodiment of the present application;
fig. 5 is a schematic structural diagram of a positioning apparatus according to a fourth embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic flowchart of a terminal positioning method according to an embodiment of the present application, which is applicable to a scenario of mobile phone positioning.
The method can be executed by a positioning device, and the positioning device can be realized by adopting a hardware and/or software mode, and specifically comprises the following steps:
step 101, establishing a communication channel with a base station, and periodically sending a preset message to a terminal to be positioned through the base station based on a mobile phone number corresponding to the terminal to be positioned.
It should be noted that, in this step, the step execution end, that is, the positioning device, establishes the communication channel and sends the preset message in the manner of simulating the terminal. The base station, i.e. the public mobile communication base station, is an interface device for accessing the mobile device to the internet, and is a form of a radio station, which refers to a radio transceiver station for performing information transfer with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area.
Specifically, when the communication channel is established, the analog terminal may receive broadcast information issued by the base station first, and establish the communication channel with the base station based on the broadcast information. It should be noted that, the process may refer to a related technology for establishing a connection between the terminal and the base station, and details are not described herein.
In addition, when the positioning device establishes the communication channel, there may be a plurality of base stations near the current position of the positioning device, and at this time, the base station capable of establishing the communication channel may be selected according to the signal power strength of the received broadcast information. For example, the base station corresponding to the broadcast information with the strongest signal power may be used as the base station for subsequently establishing the communication channel.
Further, the preset message is a preset segment of data with a fixed length, and the content of the data may be customized, but in order to ensure that the length is fixed, the message sent in each period may be the same. Certainly, the periodicity in this step refers to sending the preset message to the terminal to be located once every a preset time period. In a specific example, the preset time period may be 1 minute.
It should be noted that, in this step, the positioning device simulates the terminal to send the preset message, and the preset message may be sent based on the mobile phone number corresponding to the terminal to be positioned, where the mobile phone number may be placed in the terminal to be positioned, so as to provide a mobile network service for the terminal to be positioned.
It should be noted that, in this step, when the preset message is sent, the mobile phone number corresponding to the terminal to be located needs to be searched in the preset number pool, and the method of this embodiment may be executed only when the mobile phone number corresponding to the terminal to be located is searched in the number pool.
The number in the number pool is a mobile phone number which is pre-authorized by the user and is filled in when the positioning device is allowed to position the mobile phone to be positioned carried by the positioning device according to the method of the embodiment, that is, the method of the present application can be applied to positioning the terminal of the user only when the number is pre-authorized.
And 102, capturing all downlink control information in a downlink channel of the base station in real time in each period of sending the preset message.
In this step, a period of sending the preset message refers to starting when the preset message is sent, and ending when the preset duration is timed (or ending when the preset message is sent next time). In order to ensure that the downlink control information corresponding to the preset message can be captured as much as possible, all the downlink control information in the downlink channel of the base station in the period is captured in this step.
It should be noted that, a Downlink Channel (PDCCH) of the base station is a Physical Downlink Control Channel, and is used for carrying scheduling and other Control information, that is, downlink Control information in this step.
Generally, every time a base station sends a message to any terminal, downlink control information corresponding to the message exists in a downlink channel of the base station, and interaction between the base station and the terminal is always in an encrypted state, so that after all downlink control information is obtained, it is impossible to know which downlink control information is the downlink control information corresponding to a preset message sent to the terminal to be positioned by the positioning device.
In this embodiment, the terminal to be positioned needs to be positioned by interacting with the terminal to be positioned through the simulation base station, and therefore, downlink control information corresponding to the preset message needs to be determined, so that the temporary identifier of the wireless network of the terminal to be positioned is known.
In order to determine the downlink control information corresponding to the preset message and thus obtain the radio network temporary identifier of the terminal to be located, this embodiment proposes to use the correlation method in step 103 to implement this. The specific implementation process will be embodied in the related description of step 103, and will not be described herein again.
In addition, in this step, the captured downlink control information may include a PDCCH for scheduling uplink service data or some common PDCCHs, and since a user-specific PDCCH for scheduling downlink service data is finally required to be captured in this embodiment, the PDCCH for scheduling uplink service data or some common PDCCHs may be filtered, that is, downlink control information that is not of the target type in the captured downlink control information is filtered.
Specifically, in this step, each piece of downlink control information is captured, type determination is performed on the currently captured downlink control information, if the determined type is the target type, the downlink control information is retained, and otherwise, the downlink control information is screened out.
The target type is a user-specific PDCCH for scheduling downlink service data, and it should be noted that a value on a data bit between the user-specific PDCCH for scheduling downlink service data and the PDCCH for scheduling uplink service data is different, and generally, the data bit on the PDCCH for scheduling downlink service data is "1", and the data bit on the PDCCH for scheduling uplink service data is "0", so that whether the target type is the PDCCH for scheduling downlink service data can be determined by the value of the data bit.
In addition, the common PDCCH may also have a specific identifier, which is different from the user-specific identifier, so that whether the PDCCH for scheduling downlink traffic data is user-specific or common can be distinguished by the specific identifier.
It should be noted that, the data format of the PDCCH and the above difference points may refer to related protocol specifications, and are not described herein again.
And 103, analyzing each downlink control information, and determining the wireless network temporary identifier of the terminal to be positioned according to the analysis result.
In this step, a Radio Network Temporary Identity (RNTI) is used to identify each terminal in the information transmission process between the base station and the terminal, and each terminal has a unique RNTI in the information transmission between the base station and the terminals.
Generally, when a certain downlink control information is parsed, a specific aggregation level, a specific DCI information length, and an RNTI of a corresponding terminal are needed to be successfully parsed, and for convenience of description, a combination of the specific aggregation level, the specific DCI information length, and the RNTI of the corresponding terminal is referred to as a parsing combination in this embodiment, and each parsing combination includes one aggregation level, one DCI information length, and one RNTI.
In this embodiment, for each piece of downlink control information, the corresponding analysis combination cannot be known, so that this embodiment may analyze any PDCCH by using different analysis combinations, and then determine whether the analysis result is correct by using CRC (redundant check bits). It should be noted that the parsing process will be described in the following embodiments, and will not be described herein.
In addition, since the length of the predetermined message sent to the terminal to be located is fixed and known, the size of the parsed transport block set information should also be fixed, which is generally within a fixed length range, and the fixed length range is determined by the length of the predetermined message and the longest header.
It should be noted that the header is some information added to the header data bits during transmission, and the header can help the information to be correctly transmitted, which may refer to related technologies and is not described herein again.
Therefore, the embodiment may utilize the fixed length range to determine the radio network temporary identifier belonging to the terminal to be located. For example, if the multiple pieces of periodically occurring transport block set information fall within the fixed length range and the corresponding analysis combinations are completely the same, the RNTI in the analysis combination may be taken as the radio network temporary identifier of the terminal to be positioned.
And step 104, based on the wireless network temporary identifier, the simulation base station sends uplink scheduling authorization information to the terminal to be positioned.
The step is a process that the positioning device simulates the function of a base station to send Uplink scheduling authorization information to a terminal to be positioned, wherein after receiving the Uplink scheduling authorization information, the terminal feeds back Uplink data to the positioning device through a Physical Uplink Shared CHannel (PUSCH).
It should be noted that the uplink data may be determined by the terminal side, for example, the terminal side generates a random data for feedback, and since the power of the signal when receiving the uplink data is required in this embodiment and is not related to the content of the uplink data itself, it is only necessary that the terminal side arbitrarily defines a segment of data as the uplink data for feedback.
In the foregoing step, the wireless network temporary identifier of the terminal to be positioned is obtained, and the positioning device may scramble the uplink scheduling authorization information by using the wireless network temporary identifier, and simulate the base station to send the scrambled uplink scheduling authorization information to the terminal to be positioned, so that the terminal to be positioned feeds back uplink data after receiving the scrambled uplink scheduling authorization information.
Because the scrambled information is scrambled by using the wireless network temporary identifier of the terminal to be positioned, the terminal to be positioned can send uplink data in the appointed time-frequency resource after receiving the information. It should be noted that, the time-frequency resource for communication between the positioning device and the terminal to be positioned is specified by the positioning device, and therefore, the positioning device can receive uplink data from the known time-frequency resource.
And 105, receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment.
In this step, mainly for obtaining the signal power when receiving the uplink data, it should be noted that, in the process of determining the signal power by the positioning device, reference may be made to a related technology in which the base station determines the power of a signal sent by the terminal, and details are not described here again.
It should be noted that, in this step, the signal power when receiving the uplink data may be determined first, and the direction and the distance between the terminal to be positioned and the terminal to be positioned are determined according to the signal power, where the signal power can reflect the distance between the positioning device and the terminal to be positioned, and the stronger the signal power, the closer the distance is. Therefore, the closer the distance between the positioning device and the terminal to be positioned is, the higher the positioning accuracy will be.
In order to determine the position of the terminal to be positioned, a direction-finding antenna may be further disposed in the positioning device, the direction-finding antenna may measure the power intensity of the uplink data received in a plurality of positions, and the position with the highest power intensity may be determined as the position of the terminal to be positioned.
After the position and the distance between the terminal to be positioned and the positioning device are determined, the position of the terminal to be positioned can be determined according to the position and the distance and the current position of the positioning device, wherein the current position of the positioning device is the current position of the positioning device and can be represented by using longitude and latitude.
Specifically, referring to fig. 2, fig. 2 is a schematic diagram of determining a position of a terminal to be located according to an embodiment of the present application.
As shown in fig. 2, after the positioning device 201 communicates with the base station 202 and the terminal 203 to be positioned, the terminal is induced to feed back uplink data. The direction-finding antenna of the positioning device is direction-finding of 4 directions, namely up, down, left and right, wherein the power intensity of the left direction is strongest, and the power of the upper direction is strongest, so that the terminal to be positioned may be positioned at the upper left direction (by taking the positioning device as the center).
In order to make the position determination more accurate, the accurate target position can be determined by using the difference between the signal power strengths of all the positions, and then the distance from the terminal to be positioned to the positioning device is calculated to be 850 meters according to the signal power strength, at this time, all the points of the target position from the positioning device 850 can be determined as the position of the terminal to be positioned.
It should be noted that the number of cycles required for determining the radio network temporary identifier may be preset, and the greater the number is, the higher the accuracy of the determined radio network temporary identifier is. In addition, in order to improve the accuracy of the position, the position may be determined a plurality of times, and then an average value may be obtained as a final position.
In this embodiment, a communication channel with a base station is first established, then a preset message is periodically sent to a terminal to be positioned through the communication channel, then all downlink control information in a downlink channel of the base station is captured in real time in each period of sending the preset message, then each downlink control information is analyzed, and a wireless network temporary identifier of the terminal to be positioned is determined according to an analysis result. And then based on the wireless network temporary identifier, simulating that the base station wants to send uplink scheduling authorization information to the terminal to be positioned, receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when receiving the uplink data and the current position of the positioning equipment. Based on the method, the wireless network temporary identifier of the terminal to be positioned can be determined by actively sending the preset message, so that the base station can be simulated to send uplink scheduling authorization information to the terminal to be positioned, the terminal to be positioned can autonomously feed back uplink data without user operation, the position of the terminal to be positioned can be determined based on the signal power when the uplink data is received and the current position of the positioning equipment, and based on the method, under the condition that a user cannot control a mobile phone due to an accident, the user does not need to operate the mobile phone at that time to send the position of the mobile phone, the position of the terminal to be positioned held by the user can also be determined, and the life safety of the user is protected.
Example two
Referring to fig. 3, fig. 3 is a schematic flowchart of determining a radio network temporary identifier of a terminal to be located according to a second embodiment of the present application.
As shown in fig. 3, in this embodiment, the process of determining the radio network temporary identifier of the terminal to be located may include:
step 301, for any one of the captured downlink control information, analyzing by using multiple preset analysis combinations to obtain an analysis result corresponding to each analysis combination, where the analysis combination includes a radio network temporary identifier.
As can be known from the foregoing process, the parsing combination includes an aggregation level, a DCI information length, and an RNTI, where the aggregation level indicates the number of consecutive CEEs occupied by one PDCCH, and the types of aggregation levels generally used are limited, for example, 4.
The number of the length of DCI information, i.e., downlink control information, is also limited, for example, there are 2 types. The number of RNTIs is also constant, for example, 4, and the number of analysis combinations that can be composed of the 3 elements is 32.
Therefore, for any one piece of downstream control information, 32 combinations can be used for sequential analysis, and the analysis result usually includes redundant check bits. The CRC consists of two parts, the front part being the valid information bits that need to be check protected and the rear part being the CRC redundancy check bits. If the valid information bits are k bits and the CRC check bits are r bits, a CRC code of n (n = k + r) bits is formed, which is called an (n, k) code.
When coding, firstly, according to the CRC coding rule, the redundancy check information CRC (X) of the effective information B (X) needing to be sent is calculated, and then B (X) and CRC (X) jointly form CRC. Similarly, at the time of decoding, the check information CRCB1B (X) of the valid information B (X) is recalculated in accordance with the CRC coding rule. And comparing whether the CRCB1B (X) and the CRC (X) are equal, if so, judging that the CRC is correct, indicating that no error occurs in the data, otherwise, judging that the data is in error, namely, the CRC is in error.
Step 302, determining a target analysis result meeting a preset check condition from all the analysis results.
In this step, the predetermined verification condition is that CRCB1B (X) is equal to CRC (X). In order to avoid unnecessary analysis processes, each time an analysis result is analyzed, whether the analysis result meets the preset check condition can be judged.
And 303, extracting the information of the transmission block set from each target analysis result.
In this step, the transport block set information is the above-mentioned valid information B (X). Since the valid information is usually a combination of the header and the preset message of step 101, the preset range may be set to (preset message length, preset message length + maximum header length).
And 304, screening target transmission block sets with the sizes within a preset range from the extracted transmission block set information, and determining the wireless network temporary identifications in the analysis combinations corresponding to the target transmission block sets.
And 305, determining the radio network temporary identifier of the terminal to be positioned based on the target transmission block set and the respective corresponding radio network temporary identifiers obtained in each period of sending the preset message.
Since the present embodiment analyzes the downlink control information in multiple periods, the number of the obtained target transport block sets is generally greater than the number of periods, and the analysis combinations used by the downlink control information corresponding to the preset message sent to the terminal to be located are necessarily the same.
Therefore, the target transport block set obtained by the same parsing process as the parsing combination used in the parsing can be determined as the target transport block set corresponding to the preset message sent to the terminal to be positioned, and the RNTI used in the parsing process is necessarily the radio network temporary identifier of the terminal to be positioned.
EXAMPLE III
Fig. 4 is a schematic structural diagram of a terminal positioning device according to a third embodiment of the present application. The terminal positioning device provided by the embodiment of the application can execute the terminal positioning method provided by any embodiment of the application, and has corresponding functional modules and beneficial effects of the execution method. The device can be implemented in software and/or hardware, and as shown in fig. 4, the terminal positioning device specifically includes: a message sending module 401, an acquisition module 402, a parsing module 403, a base station simulation module 404, and a positioning module 405.
The message sending module is used for establishing a communication channel with the base station and periodically sending a preset message to the terminal to be positioned through the base station based on the mobile phone number corresponding to the terminal to be positioned;
the acquisition module is used for acquiring all downlink control information in a downlink channel of the base station in real time in each period of sending the preset message;
the analysis module is used for analyzing each downlink control information and determining the wireless network temporary identifier of the terminal to be positioned according to the analysis result;
the base station simulation module is used for simulating a base station to send uplink scheduling authorization information to a terminal to be positioned based on the wireless network temporary identifier;
and the positioning module is used for receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment.
In the embodiment, a communication channel with a base station is established, then, a preset message is periodically sent to a terminal to be positioned through the communication channel, then, in each period for sending the preset message, all downlink control information in a downlink channel of the base station is captured in real time, then, each downlink control information is analyzed, and a wireless network temporary identifier of the terminal to be positioned is determined according to an analysis result. And then based on the wireless network temporary identifier, simulating that the base station wants to send uplink scheduling authorization information to the terminal to be positioned, receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment. Based on the method, the wireless network temporary identifier of the terminal to be positioned can be determined by actively sending the preset message, so that the base station can be simulated to send uplink scheduling authorization information to the terminal to be positioned, the terminal to be positioned can feed back uplink data, the position of the terminal to be positioned can be determined based on the signal power when the uplink data is received and the current position of the positioning equipment, and based on the method, under the condition that a user cannot control the mobile phone due to an accident, the user does not need to operate the mobile phone at that time to send the position of the mobile phone, the position of the terminal to be positioned held by the user can also be determined, and the life safety of the user is protected.
Further, the message sending module includes:
and the terminal simulation unit is used for simulating the terminal to receive the broadcast information issued by the base station and establishing a communication channel with the base station based on the broadcast information.
Further, the parsing module includes:
the analysis unit is used for analyzing any captured downlink control information by utilizing a plurality of preset analysis combinations to obtain analysis results corresponding to each analysis combination, and each analysis combination comprises a wireless network temporary identifier;
and the target analysis result determining unit is used for determining a target analysis result meeting a preset verification condition from all the analysis results.
Further, the parsing module includes:
an extraction unit, configured to extract transport block set information from each target analysis result;
the screening unit is used for screening out target transmission block sets with the sizes within a preset range from the extracted transmission block set information and determining the wireless network temporary identifications in the analysis combinations corresponding to the target transmission block sets;
and the identifier determining unit is used for determining the radio network temporary identifier of the terminal to be positioned based on the target transmission block set obtained in each period for sending the preset message and the respective corresponding radio network temporary identifiers.
Further, the base station simulation module comprises:
and the base station simulation unit is used for scrambling the uplink scheduling authorization information by using the wireless network temporary identifier, and simulating the base station to send the scrambled uplink scheduling authorization information to the terminal to be positioned so that the terminal to be positioned feeds back uplink data after receiving the scrambled uplink scheduling authorization information.
Further, the positioning module comprises:
the positioning distance determining unit is used for determining the signal power when receiving the uplink data and determining the position and the distance between the positioning distance determining unit and the terminal to be positioned according to the signal power;
and the position determining unit is used for determining the position of the terminal to be positioned according to the direction, the distance and the current position of the positioning equipment.
Further, the apparatus further comprises:
and the screening module is used for screening out the downlink control information which does not belong to the target type in the captured downlink control information.
Example four
Fig. 5 is a schematic structural diagram of a positioning apparatus according to a fourth embodiment of the present application, as shown in fig. 5, the positioning apparatus includes a housing 500, a processor 510, a memory 520, and a signal transceiver antenna 530; the number of the processors 510 in the positioning device may be one or more, and one processor 510 is taken as an example in fig. 5; the processor 510, the memory 520, and the signal transceiver antenna 530 in the positioning apparatus may be connected by a bus or other means, and the bus connection is exemplified in fig. 5. The processor 510, the memory 520, and the signal transceiver antenna 530 may be disposed in the housing 500.
It should be noted that, in order to improve the convenience of the positioning device, the housing may be set as a backpack, and the rescue workers may carry the positioning device in a backpack manner, while searching and positioning, thereby improving the positioning efficiency.
The memory 520 is a computer-readable storage medium and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the terminal location method in the embodiment of the present application (for example, the message sending module 401, the capturing module 402, the parsing module 403, the base station simulation module 404, and the location module 405 in the terminal location apparatus). The processor 510 executes various functional applications of the positioning apparatus and data processing by executing software programs, instructions and modules stored in the memory 520, so as to implement the terminal positioning method described above.
Namely, a communication channel between the base station and the base station is established, and a preset message is periodically sent to the terminal to be positioned through the base station based on the mobile phone number corresponding to the terminal to be positioned;
capturing all downlink control information in a downlink channel of a base station in real time in each period of sending a preset message;
analyzing each downlink control information, and determining a wireless network temporary identifier of a terminal to be positioned according to an analysis result;
based on the wireless network temporary identifier, the simulation base station sends uplink scheduling authorization information to the terminal to be positioned;
and receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment.
The memory 520 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 520 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 520 can further include memory located remotely from the processor 510, which can be connected to a location device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
EXAMPLE five
A fifth embodiment of the present application further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for positioning a terminal, the method including:
establishing a communication channel with a base station, and periodically sending a preset message to a terminal to be positioned through the base station based on a mobile phone number corresponding to the terminal to be positioned;
capturing all downlink control information in a downlink channel of a base station in real time in each period of sending a preset message;
analyzing each downlink control information, and determining a wireless network temporary identifier of a terminal to be positioned according to an analysis result;
based on the wireless network temporary identifier, the simulation base station sends uplink scheduling authorization information to the terminal to be positioned;
and receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment.
Of course, the storage medium containing computer-executable instructions provided in the embodiments of the present application is not limited to the above method operations, and may also perform related operations in the terminal positioning method provided in any embodiment of the present application.
From the above description of the embodiments, it is obvious for those skilled in the art that the present application can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present application or portions contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods of the embodiments of the present application.
It should be noted that, in the embodiment of the above search apparatus, each included unit and module are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only used for distinguishing one functional unit from another, and are not used for limiting the protection scope of the application.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments illustrated herein, and that various obvious changes, rearrangements and substitutions may be made therein by those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims (10)

1. A terminal positioning method, characterized in that the method comprises:
establishing a communication channel with a base station, and periodically sending a preset message to a terminal to be positioned through the base station based on a mobile phone number corresponding to the terminal to be positioned;
capturing all downlink control information in a downlink channel of the base station in real time in each period of sending the preset message;
analyzing each downlink control information, and determining a wireless network temporary identifier of the terminal to be positioned according to an analysis result;
based on the wireless network temporary identifier, the simulation base station sends uplink scheduling authorization information to the terminal to be positioned;
and receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information, and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment.
2. The method of claim 1, wherein the establishing a communication channel with a base station comprises:
the analog terminal receives broadcast information issued by the base station and establishes a communication channel with the base station based on the broadcast information.
3. The method of claim 1, wherein the parsing each downlink control information comprises:
analyzing any captured downlink control information by utilizing a plurality of preset analysis combinations to obtain an analysis result corresponding to each analysis combination, wherein the analysis combinations comprise wireless network temporary identifications;
and determining a target analysis result meeting a preset verification condition from all analysis results.
4. The method according to claim 3, wherein the determining the radio network temporary identifier of the terminal to be located according to the parsing result comprises:
extracting transmission block set information from each target analysis result;
screening target transmission block sets with the sizes within a preset range from the extracted transmission block set information, and determining a wireless network temporary identifier in an analysis combination corresponding to each target transmission block set;
and determining the wireless network temporary identifier of the terminal to be positioned based on the target transmission block set and the wireless network temporary identifiers corresponding to the target transmission block set obtained in each period of sending the preset message.
5. The method of claim 1, wherein the simulating a base station sending uplink scheduling grant information to the terminal to be positioned based on the radio network temporary identifier comprises:
and scrambling the uplink scheduling authorization information by using the wireless network temporary identifier, and sending the scrambled uplink scheduling authorization information to the terminal to be positioned by the simulated base station so that the terminal to be positioned feeds back uplink data after receiving the scrambled uplink scheduling authorization information.
6. The method of claim 1, wherein the determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning device comprises:
determining the signal power when receiving the uplink data, and determining the direction and the distance between the terminal to be positioned and the terminal to be positioned according to the signal power;
and determining the position of the terminal to be positioned according to the direction, the distance and the current position of the positioning equipment.
7. The method of claim 1, wherein after the acquiring all downlink control information in the downlink channel of the base station in real time and before the parsing each downlink control information, the method further comprises:
and screening out the downlink control information which does not belong to the target type in the captured downlink control information.
8. A terminal positioning apparatus, characterized in that the apparatus comprises:
the message sending module is used for establishing a communication channel with a base station and periodically sending a preset message to the terminal to be positioned through the base station based on a mobile phone number corresponding to the terminal to be positioned;
a capturing module, configured to capture all downlink control information in the downlink channel of the base station in real time in each period in which the preset message is sent;
the analysis module is used for analyzing each downlink control information and determining the wireless network temporary identifier of the terminal to be positioned according to the analysis result;
the base station simulation module is used for simulating a base station to send uplink scheduling authorization information to the terminal to be positioned based on the wireless network temporary identifier;
and the positioning module is used for receiving uplink data fed back by the terminal to be positioned according to the uplink scheduling authorization information and determining the position of the terminal to be positioned based on the signal power when the uplink data is received and the current position of the positioning equipment.
9. A positioning apparatus, comprising: a housing, a signal transceiving antenna disposed in the housing, one or more processors;
the signal transceiving antenna is used for communicating with a base station and a handset to be positioned, and the processor is used for executing the terminal positioning method according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method of positioning a terminal according to any one of claims 1 to 7.
CN202211072381.5A 2022-09-02 2022-09-02 Terminal positioning method and device, positioning equipment and storage medium Pending CN115413025A (en)

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CN202211072381.5A CN115413025A (en) 2022-09-02 2022-09-02 Terminal positioning method and device, positioning equipment and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211072381.5A CN115413025A (en) 2022-09-02 2022-09-02 Terminal positioning method and device, positioning equipment and storage medium

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