CN117915452A - Wireless communication positioning method and device, electronic equipment and storage medium - Google Patents
Wireless communication positioning method and device, electronic equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
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Abstract
The application discloses a wireless communication positioning method, a wireless communication positioning device, electronic equipment and a storage medium, wherein the method is applied to a terminal and comprises the following steps: configuring a transmission advance triggering timer; triggering a timer to perform data communication processing to a base station according to the transmission advance, and receiving and obtaining a measurement code sent by the base station; performing signal main path identification processing according to the measurement code to obtain reference signal receiving power; constructing a state space reference state according to the reference signal received power and the measurement code; and carrying out fingerprint positioning processing according to the state space reference state to obtain a positioning position. The embodiment of the application can identify the main path of the signal in real time to remove the abnormal value by measuring the transmission advance, so that the 5G positioning measurement is more stable, the drift of the signal measurement is reduced, and the method and the device can be widely applied to the technical field of the Internet of things.
Description
Technical Field
The present application relates to the field of internet of things, and in particular, to a wireless communication positioning method, a wireless communication positioning device, an electronic device, and a storage medium.
Background
The safe production in the coal field requires accurate positioning of personnel, process materials, robot inspection and the like, but when more Bluetooth and ultra-wideband beacons are deployed in the coal chemical explosion-proof area, wireless signals of unauthorized frequency points can interfere production, and maintenance pressure is high. In a coal industry park, because of the price of an explosion-proof base station and the constraint of radiation directions, 5G base stations on the periphery of the explosion-proof area are often adopted to radiate wireless signals to the explosion-proof area. However, in practical application, the sparse samples of the base station are less, and the terminal is far away from the base station, so that the wireless signal is greatly affected by the environment, the samples are less, and the wireless communication positioning is not stable enough.
In summary, the technical problems in the related art are to be improved.
Disclosure of Invention
The embodiment of the application mainly aims to provide a wireless communication positioning method, a wireless communication positioning device, electronic equipment and a storage medium, which can improve the stability of wireless communication positioning.
To achieve the above object, an aspect of an embodiment of the present application provides a wireless communication positioning method, where the method is applied to a terminal, and includes:
Configuring a transmission advance triggering timer;
Triggering a timer to perform data communication processing to a base station according to the transmission advance, and receiving and obtaining a measurement code sent by the base station;
Performing signal main path identification processing according to the measurement code to obtain reference signal receiving power;
Constructing a state space reference state according to the reference signal received power and the measurement code;
And carrying out fingerprint positioning processing according to the state space reference state to obtain a positioning position.
In some embodiments, the configuring the transmission advance trigger timer includes:
modifying the subscription attribute of the transmission advance to obtain the transmission advance level;
Step-out setting processing is carried out on the transmission advance to obtain a step-out value;
and configuring and obtaining a transmission advance triggering timer according to the transmission advance level and the step-out value.
In some embodiments, the triggering the timer according to the transmission advance to perform data communication processing to a base station, and receiving to obtain a measurement code sent by the base station, includes:
When entering a random process or sending data, the transmission advance triggering timer is updated;
Triggering a timer to send a periodic heartbeat packet to a base station according to the transmission advance;
and receiving and obtaining the measurement code sent by the base station according to the periodic heartbeat packet.
In some embodiments, the performing signal main path identification processing according to the measurement code to obtain reference signal received power includes:
Performing distance conversion processing on the measurement code to obtain a transmission advance distance;
Performing line-of-sight path identification processing according to the transmission advance distance to obtain a signal main path;
and eliminating the signal abnormal value according to the signal main path to obtain the reference signal receiving power.
In some embodiments, said constructing a state space reference state from said reference signal received power and said measured code comprises:
Acquiring a terminal physical address;
performing association processing on the reference signal received power, the measurement code and the terminal physical address to obtain an association sample;
and constructing and obtaining a state space reference state according to the prior constraint of the correlation sample.
In some embodiments, the performing fingerprint positioning processing according to the state space reference state to obtain a positioning position includes:
Offline learning is carried out according to the state space reference state, and a wireless fingerprint database is constructed;
Acquiring a wireless signal of a terminal;
and matching the wireless signals of the terminal with the wireless fingerprint database to obtain a positioning position.
To achieve the above object, another aspect of the embodiments of the present application provides a wireless communication positioning method, which is applied to a base station, including:
Receiving a periodic heartbeat packet sent by a terminal;
performing measurement processing on the uplink signal according to the periodic heartbeat packet to obtain a measurement code;
The measurement code is sent to the terminal in accordance with a timing advance command.
To achieve the above object, another aspect of the embodiments of the present application provides a wireless communication positioning apparatus, which is applied to a terminal, including:
the first module is used for configuring a transmission advance triggering timer;
The second module is used for triggering a timer to perform data communication processing to the base station according to the transmission advance and receiving and obtaining a measurement code sent by the base station;
The third module is used for carrying out signal main path identification processing according to the measurement code to obtain reference signal receiving power;
a fourth module for constructing a state space reference state based on the reference signal received power and the measurement code;
And the fifth module is used for carrying out fingerprint positioning processing according to the state space reference state to obtain a positioning position.
To achieve the above object, another aspect of the embodiments of the present application provides a wireless communication positioning apparatus, which is applied to a base station, including:
A sixth module, configured to receive a periodic heartbeat packet sent by the terminal;
A seventh module, configured to perform measurement processing on an uplink signal according to the periodic heartbeat packet to obtain a measurement code;
And an eighth module, configured to send the measurement code to a terminal according to a timing advance command.
To achieve the above object, another aspect of the embodiments of the present application provides an electronic device, including a memory and a processor, where the memory stores a computer program, and the processor implements the method described above when executing the computer program.
To achieve the above object, another aspect of the embodiments of the present application proposes a computer-readable storage medium storing a computer program which, when executed by a processor, implements the method described above.
The embodiment of the application at least comprises the following beneficial effects: the application provides a wireless communication positioning method and device, electronic equipment and a storage medium. The scheme also constructs the reference state of the state space based on the measurement code and the distance thereof, and the fingerprint positioning can be quickly adapted to the new environment and the convergence of few samples through priori constraint, so that the efficiency of wireless communication positioning is improved.
Drawings
Fig. 1 is a flowchart of a wireless communication positioning method applied to a terminal according to an embodiment of the present application;
FIG. 2 is a schematic diagram of configuration data of a trigger timer according to an embodiment of the present application;
FIG. 3 is a schematic diagram of data communication according to an embodiment of the present application;
fig. 4 is a schematic diagram of a calculation result of a transmission advance distance according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a data structure of a state space reference state according to an embodiment of the present application;
Fig. 6 is a flowchart of a wireless communication positioning method applied to a base station according to an embodiment of the present application;
FIG. 7 is a diagram of a positioning structure in the related art;
Fig. 8 is a diagram of a positioning structure for wireless communication according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a wireless communication positioning device applied to a terminal according to an embodiment of the present application;
Fig. 10 is a schematic structural diagram of a wireless communication positioning device applied to a base station according to an embodiment of the present application;
fig. 11 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the application, but are merely examples of apparatuses and methods consistent with aspects of embodiments of the application as detailed in the accompanying claims.
It is to be understood that the terms "first," "second," and the like, as used herein, may be used to describe various concepts, but are not limited by these terms unless otherwise specified. These terms are only used to distinguish one concept from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present application. The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.
The terms "at least one", "a plurality", "each", "any" and the like as used herein, at least one includes one, two or more, a plurality includes two or more, each means each of the corresponding plurality, and any one means any of the plurality.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the application only and is not intended to be limiting of the application.
Before describing embodiments of the present application in detail, some of the terms and expressions that are referred to in the embodiments of the present application will be described first, and the terms and expressions that are referred to in the embodiments of the present application are applicable to the following explanation.
The time advance (TIME ADVANCED, TA), also called transmission advance, refers to the difference between the actual time the terminal signal arrives at the base station and the time the terminal signal arrives at the base station assuming the terminal is 0 distance from the base station.
Square antenna array (Uniform PLANAR ARRAY, UPA) refers to a large-scale Uniform planar antenna array equipped at a base station end in a 3D MIMO communication system. The 3D MIMO communication system has more antenna elements, and compared with the 2D MIMO communication system, the system has more antenna freedom degrees in the vertical direction, namely the system can flexibly and accurately adjust the beam direction in the horizontal dimension and the vertical dimension at the same time, so that the transmitting end can form narrower and more accurate beams, and has very high directivity.
Ultra wideband wireless communication technology (UWB) is a carrierless communication technology that does not use a carrier, but rather uses a short sequence of energy pulses and spreads the pulses over a range of frequencies by orthogonal frequency division modulation or direct sequencing.
Line of sight (LOS) means that the transmitting antenna and the receiving antenna can "see" each other; the line-of-sight wireless transmission refers to a transmission of signals between a transmitting antenna and a receiving antenna at a distance where each other can be seen.
The reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) is one of the key parameters that can represent the radio signal strength and the physical layer measurement requirements in the LTE network, and is the average value of the signal Power received on all REs (resource elements) that carry the reference signal within a certain symbol.
The Physical Uplink Shared Channel (PUSCH) is the primary physical channel carrying the upper layer transport channel.
A Physical Uplink Control Channel (PUCCH) carries uplink control information (Uplink Control Information, UCI), and the PUCCH is used to transmit UCI to support uplink and downlink data transmission.
The Sounding reference signal (Sounding REFERENCE SIGNAL, SRS) is mainly used for estimating the quality of the uplink channel, so as to be used for uplink scheduling, time advance (TIMING ADVANCE, TA) and uplink beam management.
Because the safe production of coal industry requires to carry out accurate location to personnel, flow material, robot inspection etc.. However, when more Bluetooth and UWB beacons are deployed in the coal chemical explosion-proof area, wireless signals of unauthorized frequency points can interfere production, and meanwhile, maintenance pressure is high, so that 5G positioning becomes an infrastructure of interest in the coal chemical industry. The higher frequency 5G results in denser base station networking than 4G, and the larger number of antennas on UPA results in more accurate beam pointing. Therefore, the 5G terminal can be connected with more base stations under the LOS, and the received signal has stronger power, so that the terminal position information with higher precision can be obtained.
In the related technology, in a coal industry park, due to the restriction of the price and the radiation direction of an explosion-proof base station, a 5G base station on the periphery of the explosion-proof area is often adopted to radiate wireless signals to the explosion-proof area, so that the sparse sample of the base station is less and the terminal is far away from the base station under LOS. Because LOS base stations are few, the base stations are far away from the terminal, so that the wireless signals are greatly influenced by the environment, samples are few, and the positioning of triangles and fingerprints is not stable enough.
In view of this, in the embodiment of the present application, a wireless communication positioning method, an apparatus, an electronic device, and a storage medium are provided, where the solution configures a transmission advance trigger timer at a terminal, and performs data communication processing to a base station according to the transmission advance trigger timer, and receives a measurement code sent by the base station; the transmission advance can be actively measured and acquired for eliminating abnormal RSRP values in real time. And then a state space reference state is constructed according to the received power of the reference signal and the measurement code, fingerprint positioning processing is carried out according to the state space reference state to obtain a positioning position, the state space reference state can be constructed based on the measurement code and the distance thereof, and the reference state forms prior constraint to enable the fingerprint positioning to be quickly converged under the condition of a small sample, so that the stability and the efficiency of wireless communication positioning are improved.
The embodiment of the application provides a wireless communication positioning method, and relates to the technical field of Internet of things. The wireless communication positioning method provided by the embodiment of the application is applied to a terminal, and in some embodiments, the terminal can be a smart phone, a tablet personal computer, a notebook computer, a desktop computer, a smart sound box, a smart watch, a vehicle-mounted terminal and the like, but is not limited to the above. It should be noted that, the wireless communication positioning method provided by the embodiment of the present application is applied to a base station, that is, a public mobile communication base station, which is an interface device for accessing mobile equipment to the internet, and is also a form of a radio station, that is, a radio transceiver station that performs information transfer with a mobile terminal through a mobile communication switching center in a certain radio coverage area. The main function of the base station is to provide wireless coverage, i.e. to enable wireless signal transmission between a wired communication network and a wireless terminal.
The application is operational with numerous general purpose or special purpose computer system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like. The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
Fig. 1 is an optional flowchart of a wireless communication positioning method according to an embodiment of the present application, where the method is applied to a terminal, and the method in fig. 1 may include, but is not limited to, steps S101 to S106.
Step S101, configuring a transmission advance triggering timer;
Step S102, triggering a timer to perform data communication processing to a base station according to the transmission advance, and receiving and obtaining a measurement code sent by the base station;
Step S103, carrying out signal main path identification processing according to the measurement code to obtain reference signal received power;
Step S104, a state space reference state is constructed according to the reference signal received power and the measurement code;
Step S105, fingerprint positioning processing is carried out according to the state space reference state, and a positioning position is obtained.
In the steps S101 to S106 shown in the embodiment of the present application, a transmission advance trigger timer is configured in a terminal, so that the terminal performs data communication processing to a base station according to the configured transmission advance trigger timer, and receives a measurement code sent by the base station through the terminal. And the terminal performs signal main path identification processing according to the received measurement code, can remove abnormal values, and can identify and obtain reference signal receiving power. And finally, constructing a state space reference state according to the received power of the reference signal and the measurement code, and adding a new positioning reference state to the terminal to enable fingerprint positioning to adapt to more environments and performing fingerprint positioning processing according to the state space reference state to obtain a positioning position. The embodiment of the application can be applied to explosion-proof areas in coal chemical industry, the terminal is positioned by the wireless communication positioning method of the embodiment of the application, and the terminal can comprise personnel, flow materials, robot inspection and the like.
In step S101 of some embodiments, the configuring the transmission advance trigger timer includes:
modifying the subscription attribute of the transmission advance to obtain the transmission advance level;
Step-out setting processing is carried out on the transmission advance to obtain a step-out value;
and configuring and obtaining a transmission advance triggering timer according to the transmission advance level and the step-out value.
In the real-time exchange rate of the application, since the subscription attribute of the terminal TA is based on the cell level by default, the Transmission Advance (TA) is required to be changed into the User Equipment (UE) level in the subscription attribute of the terminal, the transmission advance level is obtained, and the TA step-out setting is carried out in uplinkconfigcommonSIB domains. System-configurable TA out-of-sync value: 500 SF-definition. Such as 5s out of step once when the out of step value = 5210 sf. Referring to fig. 2, fig. 2 is a schematic diagram of data configured by a trigger timer according to an embodiment of the present application, where the trigger timer is configured at a terminal according to a transmission advance level and a step-out value to obtain the transmission advance trigger timer.
In step S102 of some embodiments, the triggering a timer according to the transmission advance to perform data communication processing to a base station, and receiving a measurement code sent by the base station, includes:
When entering a random process or sending data, the transmission advance triggering timer is updated;
Triggering a timer to send a periodic heartbeat packet to a base station according to the transmission advance;
and receiving and obtaining the measurement code sent by the base station according to the periodic heartbeat packet.
In the embodiment of the present application, a terminal triggers a timer to perform data communication processing to a base station according to a transmission advance, and a heartbeat packet is sent to the base station periodically, where the periodic heartbeat packet is used to inform the base station to measure uplink signals such as PREACH/SRS/PUCCH, and referring to fig. 3, fig. 3 is a data schematic diagram of data communication, that is, a data schematic diagram of a heartbeat packet, provided in the embodiment of the present application. It should be noted that, when the terminal has application data to be transmitted, a Random (RA) procedure is performed or data is transmitted, which triggers the base station to measure PREACH/PUSCH uplink signals, so as to reset the update advance trigger timer. If the advance trigger timer is set to send a heartbeat packet to the base station every ten seconds, if the terminal sends the heartbeat packet to the base station according to the advance trigger timer at the time of 0s, the terminal will send the heartbeat packet to the base station at the time of 10s according to the advance trigger timer in a frequent case. And after sending the heartbeat packet for two seconds, namely, at the 2 nd s, the terminal needs to send application data to the base station, and at the moment, the data sent by the terminal triggers the base station to measure PREACH/PUSCH uplink signals, so that the advance trigger timer needs to be reset and updated, and the terminal sends the heartbeat packet to the base station once according to the advance trigger timer at the 12 th s. According to the embodiment of the application, the terminal can actively acquire the measurement code by setting the advance trigger timer, so that a data basis is provided for the subsequent signal main path identification.
In step S103 of some embodiments, the performing signal main path identification processing according to the measurement code to obtain reference signal received power includes:
Performing distance conversion processing on the measurement code to obtain a transmission advance distance;
Performing line-of-sight path identification processing according to the transmission advance distance to obtain a signal main path;
and eliminating the signal abnormal value according to the signal main path to obtain the reference signal receiving power.
In the embodiment of the present application, a distance conversion process needs to be performed on a measurement code (NTA value) to obtain a transmission advance distance, and referring to fig. 4, fig. 4 is a schematic diagram of a calculation result of the transmission advance distance provided in the embodiment of the present application, and the measurement code can be calculated by comparing the calculation result of the transmission advance distance provided in fig. 4 to obtain the transmission advance distance. For example, when the frequency band is FDD, the position accuracy of TA is 78.12m, and when the frequency band is TDD, the position accuracy of TA is 39.06m, and Δf represents the subcarrier spacing. And then, performing line-of-sight path recognition processing according to the transmission advance distance to obtain a signal main path, wherein a mode of radio wave propagation along a straight line is called line-of-sight propagation, and after a direct path between a Channel State Information (CSI) receiver and a base station is blocked by an obstacle, the radio wave can only reach a receiving end after reflection and diffraction, and at the moment, the measured data such as arrival time, time difference, incidence angle and the like cannot accurately reflect the real distance between the transmitting end and the receiving end. In the embodiment of the application, the video path identification processing can be realized by carrying out identification calculation on the transmission advance distance through a neural network algorithm based on deep learning, so as to obtain the signal main path, and can also be realized by carrying out identification through methods such as a support vector machine and the like, and the method is not limited. The embodiment of the application obtains the final reference signal receiving power by determining the signal main path according to the TA distance to eliminate the RSRP abnormal value and repeating the measurement for 2 times. In the embodiment of the application, the terminal identifies the main path in real time based on the NTA value to eliminate the RSRP abnormal value, and the signal main path can be identified by utilizing the actively constructed uplink TA periodic measurement, so that the stability of wireless communication positioning is improved.
In step S104 of some embodiments, the constructing a state space reference state according to the reference signal received power and the measurement code includes:
Acquiring a terminal physical address;
performing association processing on the reference signal received power, the measurement code and the terminal physical address to obtain an association sample;
and constructing and obtaining a state space reference state according to the prior constraint of the correlation sample.
In the embodiment of the application, the association sample is obtained by acquiring the physical address (MAC) of the terminal, correlating the measurement code (NTA) value, the physical address (MAC) and the Reference Signal Received Power (RSRP), and storing the association sample into a wireless fingerprint database. In the embodiment of the application, the physical address (MAC), the measurement code (NTA) value and the Reference Signal Received Power (RSRP) can be marked in a correlated way by setting an identification number and the like, and the correlated processing can be carried out by storing in a unified array and the like. Referring to fig. 5, state1 represents one state space representation, state2 represents another state space representation, wherein in state1, RSRP represents reference signal received power, RSRQ represents LTE reference signal received quality, SINR represents signal-to-interference plus noise ratio (Signal to Interference plus Noise Ratio), which means a ratio of the intensity of a received useful signal to the intensity of a received interference signal (noise and interference), and MAC represents a physical address of a terminal. The other State space and State2 comprises a measurement code (NTA), dTA-dTA' represents a transmission advance distance, and MAC represents a physical address of a terminal, namely a State space reference State constructed by the embodiment of the application. Action represents behavior, x, y, z, d represents the four-dimensional coordinates of the physical terminal, reward represents rewards, and MSE represents mean square error, respectively. According to the embodiment of the application, the state space reference state is constructed according to the prior constraint of the associated sample, so that a new positioning reference state is added to the state space by the terminal, and the new positioning reference state can be used as the initial state of state transition. When the state space reference state is used as an input vector of fingerprint learning, a positioning reference state is entered, so that a priori initial value is obtained in subsequent fingerprint training, the method can be quickly adapted to a new environment, few samples are converged, and the efficiency of wireless communication positioning is improved.
In step S105 of some embodiments, the performing fingerprint positioning processing according to the state space reference state to obtain a positioning position includes:
Offline learning is carried out according to the state space reference state, and a wireless fingerprint database is constructed;
Acquiring a wireless signal of a terminal;
and matching the wireless signals of the terminal with the wireless fingerprint database to obtain a positioning position.
In the embodiment of the application, in the off-line learning stage of fingerprint positioning, off-line learning is carried out on grid points, a wireless fingerprint database is generated based on state space reference states, then a wireless signal of a terminal to be detected is obtained, the wireless signal is compared with the wireless fingerprint database, and the position to be estimated is matched, so that the positioning position is obtained. The embodiment of the application is different from the prior art that a wireless signal characteristic is added through a TA passive measurement value, and the periodic TA measurement is obtained through sending an active heartbeat packet. And the NTA value is utilized to identify the signal main path in real time so as to remove the abnormal RSRP value, and meanwhile, the state space reference state is constructed based on the prior constraint, so that the fingerprint positioning small sample is quickly converged, and the stability and the efficiency of wireless communication positioning are improved.
Referring to fig. 6, the embodiment of the present application further provides a wireless communication positioning method, which is applied to a base station and includes steps S601 to S603:
Step S601, receiving a periodic heartbeat packet sent by a terminal;
step S602, carrying out measurement processing on an uplink signal according to the periodic heartbeat packet to obtain a measurement code;
step S603, the measurement codes are sent to the terminal according to the timing advance command.
In the embodiment of the application, after receiving the periodic heartbeat packet sent by the terminal, the base station triggers the base station to measure PREACH/SRS/PUCCH uplink signals, and then sends the NTA value (measurement code) to the terminal through a TAC command. According to the embodiment of the application, the base station receives the heartbeat packet to measure the uplink signal and transmits the measurement code to the terminal, so that the terminal can identify the signal main path by utilizing the actively constructed uplink TA period measurement, and the stability of wireless communication positioning is improved.
The following describes and illustrates the embodiments of the present application in detail with reference to specific application examples:
Referring to fig. 7, in the related art, a terminal measures RSRP values of 3 or more base stations and performs 5G positioning using a triangle or fingerprint method in such a manner that the RSRP values are associated with MACs. And on the base station side, when uplink is out of step or the terminal performs RA, TA measurement is performed and issued, and uplink synchronization is completed. In the process, as LOS base stations are few and the base stations are far away from the terminal, the wireless signals are greatly influenced by the environment, the number of samples capable of being positioned is small, and the positioning of the triangle and the fingerprint is not stable enough.
Referring to fig. 8, the embodiment of the present application is applied to a terminal side, and by changing a terminal TA subscription attribute to a UE level, a TA trigger timer is set at the terminal, a periodic heartbeat packet is sent, and an NTA value sent by a base station is received. The terminal can identify the main path in real time based on the NTA value so as to eliminate the RSRP abnormal value, thereby improving the stability of wireless communication positioning. And correlating NTA values, MAC and RSRP and storing the correlated NTA values, MAC and RSRP into a wireless fingerprint database, so that a reference state in a state space is constructed based on the prior constraint of NTA and the distance thereof, a prior initial value is obtained in subsequent fingerprint training, and the method is fast suitable for a new environment and small-sample convergence. On the base station side, after receiving the heartbeat packet, the base station triggers the base station to measure PREACH/SRS/PUCCH uplink signals, and then sends NTA values (measurement codes) to the terminal through a TAC command. The embodiment of the application can construct the state space reference state based on NTA and the distance thereof, and the reference state forms prior constraint to enable the fingerprint positioning small sample to quickly converge, thereby improving the positioning efficiency. According to the embodiment of the application, the measurement of the periodic TA is obtained by sending the active heartbeat packet, the signal main path is identified in real time by utilizing the measured NTA value to remove the abnormal RSRP value, the signal measurement stability of 5G positioning is realized, and the signal main path can be identified in real time by the measured value of the periodic TA to remove the abnormal RSRP value, so that the 5G positioning measurement is more stable, and the drift of the signal measurement is reduced. The state space reference state can be constructed based on NTA and the distance thereof, the priori constraint enables the fingerprint positioning small sample to be converged rapidly, when NTA and the distance thereof are used as input vectors of fingerprint learning, the positioning reference state is entered, the subsequent fingerprint training is enabled to obtain an priori initial value, and the novel environment can be adapted rapidly and the sample convergence is reduced.
Referring to fig. 9, an embodiment of the present application further provides a wireless communication positioning device, where the device is applied to a terminal, and the wireless communication positioning method applied to the terminal may be implemented, and the device includes:
A first module 901, configured to configure a transmission advance trigger timer;
a second module 902, configured to trigger a timer to perform data communication processing to a base station according to the transmission advance, and receive a measurement code sent by the base station;
a third module 903, configured to perform signal main path identification processing according to the measurement code, to obtain reference signal received power;
a fourth module 904 for constructing a state space reference state based on the reference signal received power and the measurement code;
and a fifth module 905, configured to perform fingerprint positioning processing according to the state space reference state, so as to obtain a positioning position.
It can be understood that the foregoing embodiments of the wireless communication positioning method applied to the terminal are applicable to the embodiment of the device, and the functions specifically implemented by the embodiment of the device are the same as those of the embodiment of the wireless communication positioning method applied to the terminal, and the beneficial effects achieved by the embodiment of the wireless communication positioning method applied to the terminal are the same as those achieved by the embodiment of the wireless communication positioning method applied to the terminal.
Referring to fig. 10, an embodiment of the present application further provides a wireless communication positioning device, where the device is applied to a base station, and the wireless communication positioning method applied to the base station can be implemented, and the device includes:
A sixth module 1001, configured to receive a periodic heartbeat packet sent by a terminal;
a seventh module 1002, configured to perform measurement processing on an uplink signal according to the periodic heartbeat packet to obtain a measurement code;
an eighth module 1003 is configured to send the measurement code to a terminal according to a timing advance command.
It can be understood that the foregoing embodiments of the wireless communication positioning method applied to the base station are applicable to the embodiment of the present apparatus, and the functions specifically implemented by the embodiment of the present apparatus are the same as those of the foregoing embodiments of the wireless communication positioning method applied to the base station, and the beneficial effects achieved by the embodiment of the present apparatus are the same as those achieved by the foregoing embodiments of the wireless communication positioning method applied to the base station.
The embodiment of the application also provides electronic equipment, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the wireless communication positioning method when executing the computer program. The electronic equipment can be any intelligent terminal including a tablet personal computer, a vehicle-mounted computer and the like, and can also be any intelligent equipment including a communication module, a control module and the like in a base station.
It can be understood that the content in the above method embodiment is applicable to the embodiment of the present apparatus, and the specific functions implemented by the embodiment of the present apparatus are the same as those of the embodiment of the above method, and the achieved beneficial effects are the same as those of the embodiment of the above method.
Referring to fig. 11, fig. 11 illustrates a hardware structure of an electronic device according to another embodiment, the electronic device includes:
The processor 1101 may be implemented by a general purpose CPU (central processing unit), a microprocessor, an application specific integrated circuit (ApplicationSpecificIntegratedCircuit, ASIC), or one or more integrated circuits, etc. for executing related programs to implement the technical solution provided by the embodiments of the present application;
Memory 1102 may be implemented in the form of read-only memory (ReadOnlyMemory, ROM), static storage, dynamic storage, or random access memory (RandomAccessMemory, RAM). The memory 1102 may store an operating system and other application programs, and when the technical solutions provided in the embodiments of the present disclosure are implemented by software or firmware, relevant program codes are stored in the memory 1102, and the processor 1101 invokes a wireless communication positioning method for executing the embodiments of the present disclosure;
An input/output interface 1103 for implementing information input and output;
The communication interface 1104 is configured to implement communication interaction between the device and other devices, and may implement communication in a wired manner (e.g. USB, network cable, etc.), or may implement communication in a wireless manner (e.g. mobile network, WIFI, bluetooth, etc.);
Bus 1105 transmits information between the various components of the device (e.g., processor 1101, memory 1102, input/output interface 1103, and communication interface 1104);
Wherein the processor 1101, memory 1102, input/output interface 1103 and communication interface 1104 enable communication connection therebetween within the device via bus 1105.
The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the wireless communication positioning method when being executed by a processor.
It can be understood that the content of the above method embodiment is applicable to the present storage medium embodiment, and the functions of the present storage medium embodiment are the same as those of the above method embodiment, and the achieved beneficial effects are the same as those of the above method embodiment.
The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located relative to the processor, the remote memory being connectable to the processor 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.
According to the wireless communication positioning method, the device, the electronic equipment and the storage medium, the measurement codes are actively received by configuring the transmission advance triggering timer, the signal main path identification processing is carried out on the terminal according to the measurement codes, the active measurement of the transmission advance can be periodically carried out, the method and the device are used for real-time signal main path identification, abnormal reference signal receiving power values are removed, and therefore the stability of wireless communication positioning is improved. The scheme also constructs the reference state of the state space based on the measurement code and the distance thereof, and the fingerprint positioning can be quickly adapted to the new environment and the convergence of few samples through priori constraint, so that the efficiency of wireless communication positioning is improved.
The embodiments described in the embodiments of the present application are for more clearly describing the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
It will be appreciated by persons skilled in the art that the embodiments of the application are not limited by the illustrations, and that more or fewer steps than those shown may be included, or certain steps may be combined, or different steps may be included.
The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the above-described division of units is merely a logical function division, and there may be another division manner in actual implementation, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including multiple instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the various embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (Random Access Memory RAM), a magnetic disk, or an optical disk, or other various media capable of storing a program.
The preferred embodiments of the present application have been described above with reference to the accompanying drawings, and are not thereby limiting the scope of the claims of the embodiments of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the embodiments of the present application shall fall within the scope of the claims of the embodiments of the present application.
Claims (10)
1. A wireless communication positioning method, wherein the method is applied to a terminal, and comprises:
Configuring a transmission advance triggering timer;
Triggering a timer to perform data communication processing to a base station according to the transmission advance, and receiving and obtaining a measurement code sent by the base station;
Performing signal main path identification processing according to the measurement code to obtain reference signal receiving power;
Constructing a state space reference state according to the reference signal received power and the measurement code;
And carrying out fingerprint positioning processing according to the state space reference state to obtain a positioning position.
2. The method of claim 1, wherein the configuring the transmission advance trigger timer comprises:
modifying the subscription attribute of the transmission advance to obtain the transmission advance level;
Step-out setting processing is carried out on the transmission advance to obtain a step-out value;
and configuring and obtaining a transmission advance triggering timer according to the transmission advance level and the step-out value.
3. The method according to claim 1, wherein the triggering a timer according to the transmission advance to perform data communication processing to a base station and receiving a measurement code sent by the base station, includes:
When entering a random process or sending data, the transmission advance triggering timer is updated;
Triggering a timer to send a periodic heartbeat packet to a base station according to the transmission advance;
and receiving and obtaining the measurement code sent by the base station according to the periodic heartbeat packet.
4. The method of claim 1, wherein said performing signal primary path identification processing based on said measurement code to obtain reference signal received power comprises:
Performing distance conversion processing on the measurement code to obtain a transmission advance distance;
Performing line-of-sight path identification processing according to the transmission advance distance to obtain a signal main path;
and eliminating the signal abnormal value according to the signal main path to obtain the reference signal receiving power.
5. The method of claim 1, wherein said constructing a state space reference state from said reference signal received power and said measured code comprises:
Acquiring a terminal physical address;
performing association processing on the reference signal received power, the measurement code and the terminal physical address to obtain an association sample;
and constructing and obtaining a state space reference state according to the prior constraint of the correlation sample.
6. The method according to any one of claims 1 to 5, wherein the performing fingerprint positioning processing according to the state space reference state to obtain a positioning position includes:
Offline learning is carried out according to the state space reference state, and a wireless fingerprint database is constructed;
Acquiring a wireless signal of a terminal;
and matching the wireless signals of the terminal with the wireless fingerprint database to obtain a positioning position.
7. A method for positioning in wireless communication, the method being applied to a base station and comprising:
Receiving a periodic heartbeat packet sent by a terminal;
performing measurement processing on the uplink signal according to the periodic heartbeat packet to obtain a measurement code;
The measurement code is sent to the terminal in accordance with a timing advance command.
8. A wireless communication positioning apparatus, the apparatus comprising:
the first module is used for configuring a transmission advance triggering timer;
The second module is used for triggering a timer to perform data communication processing to the base station according to the transmission advance and receiving and obtaining a measurement code sent by the base station;
The third module is used for carrying out signal main path identification processing according to the measurement code to obtain reference signal receiving power;
a fourth module for constructing a state space reference state based on the reference signal received power and the measurement code;
And the fifth module is used for carrying out fingerprint positioning processing according to the state space reference state to obtain a positioning position.
9. An electronic device comprising a memory storing a computer program and a processor implementing the method of any of claims 1 to 7 when the computer program is executed by the processor.
10. A computer readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the method of any one of claims 1 to 7.
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