Bistatic site selection method and device and storage medium

Abstract

The invention provides a bistatic site selection method and apparatus, and a storage medium. The method comprises the steps of determining a position relationship between a to-be-detected object and a plurality of target bistatic sites based on perception information; the target double-base station is a double-base station capable of covering the object to be detected; and selecting an optimal double-base station from the plurality of target double-base stations based on the position relationship. According to the bistatic site selection method and device and the storage medium provided by the embodiment of the invention, the position relationship between the to-be-tested object and the plurality of target bistatic sites can be determined through the sensing function entity, and the reasonable bistatic site is selected according to the position relationship, so that the calculation complexity can be reduced, the communication transmission quantity between the sites can be reduced, and the user experience can be improved. Therefore, the efficiency of selecting the double-base station is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, device and storage medium for selecting a dual-base site. Background Art

[0002] The dual-base mode refers to a mode in which the transmitter and receiver of the synaesthesia integrated site are deployed at different locations, and the receiver senses the target by receiving the echo signal emitted from the transmitter and reflected by the target to be sensed. The dual-base mode target positioning algorithm essentially obtains the target's location information by measuring the sum of distances, distance differences, and azimuths, and solving triangles based on the positions of the transmitter and receiver and the connecting baseline.

[0003] The existing cooperative sensing node selection strategy requires randomly selecting multiple dual-base stations to locate the approximate location of the target before determining that selecting dual-base transceiver station 1 for sensing is better than dual-base transceiver station 2 for sensing, and then using dual-base transceiver station 1 for sensing to obtain a higher-precision sensing result. However, dual-base mode positioning requires the fusion of measurement results from multiple sensing base stations to calculate the location of the target, which will bring extremely high computational complexity and high communication volume transmission between multiple sites, resulting in problems such as large delay in measurement results. Summary of the invention

[0004] The embodiments of the present application provide a dual-base site selection method, device and storage medium to solve the technical problem of low efficiency in selecting dual-base sites in the related art.

[0005] In a first aspect, an embodiment of the present application provides a dual-base site selection method, which is applied to a perception function entity, including:

[0006] Determine the positional relationship between the object to be measured and a plurality of target dual-base stations based on the sensing information; the target dual-base stations are dual-base stations that can cover the object to be measured;

[0007] An optimal dual-base site is selected from the multiple target dual-base sites based on the position relationship.

[0008] In some embodiments, determining the positional relationship between the object to be detected and the plurality of target dual-base stations based on the sensing information includes:

[0009] Determine, based on the sensing information, a measurement result of a target dual base station point corresponding to the object to be measured;

[0010] The positional relationship between the object to be measured and the target dual-base site is determined based on the measurement result.

[0011] In some embodiments, determining the positional relationship between the object to be measured and the target dual-base station based on the measurement result includes:

[0012] When the measurement result is greater than the extension line threshold, determine that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points; the extension line range is a preset range of the extension line of the transmitter and receiver baselines including the target dual base station points;

[0013] When the measurement result is less than the vertical line threshold, it is determined that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base station points; the vertical line range is a preset range of the perpendicular midline of the baseline between the transmitter and the receiver of the target dual base station points.

[0014] In some embodiments, the selecting the optimal dual-base site from the multiple target dual-base sites based on the position relationship includes:

[0015] In the case where the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station, the target dual-base station is not selected;

[0016] In the case that the object to be measured is within the extension range of the transmitter and receiver baselines of the target dual-base station, the target dual-base station is selected as the optimal dual-base station.

[0017] In some embodiments, the measurement result includes one or more of the following information:

[0018] The rate of change of distance measurements;

[0019] The rate of change of speed measurement;

[0020] Doppler shift rate of change;

[0021] Signal power change rate.

[0022] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0023] Determine a distance measurement value corresponding to the object to be measured based on the perception information;

[0024] The distance measurement value change rate corresponding to the object to be measured is obtained based on the distance measurement value.

[0025] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0026] Determine a speed measurement value corresponding to the object to be measured based on the perception information;

[0027] The speed measurement value change rate corresponding to the object to be measured is obtained based on the speed measurement value.

[0028] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0029] Determine the Doppler frequency shift corresponding to the object to be measured based on the sensing information;

[0030] A Doppler frequency shift change rate corresponding to the object to be measured is obtained based on the Doppler frequency shift.

[0031] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0032] Determine the echo power corresponding to the object to be measured based on the sensing information;

[0033] The echo power change rate corresponding to the object to be measured is obtained based on the echo power.

[0034] In some embodiments, the perception function entity is deployed at the transmitting end, the receiving end, or the perception function entity is an independent entity.

[0035] In some embodiments, when the sensing function entity is deployed at a transmitting end, the method further includes:

[0036] Triggering perceived business needs;

[0037] The sensing signal is sent periodically.

[0038] In some embodiments, when the sensing function entity is deployed at a receiving end, the method further includes:

[0039] Receiving a sensed echo reflected by the object to be measured;

[0040] Perception information is determined based on the perception echo.

[0041] In a second aspect, an embodiment of the present application provides a perception function entity, including a memory, a transceiver, and a processor;

[0042] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0043] Determine the positional relationship between the object to be measured and a plurality of target dual-base stations based on the sensing information; the target dual-base stations are dual-base stations that can cover the object to be measured;

[0044] An optimal dual-base site is selected from the multiple target dual-base sites based on the position relationship.

[0045] In some embodiments, determining the positional relationship between the object to be detected and the multiple target dual-base stations based on the sensing information includes:

[0046] Determine, based on the sensing information, a measurement result of a target dual base station point corresponding to the object to be measured;

[0047] The positional relationship between the object to be measured and the target dual-base station is determined based on the measurement result.

[0048] In some embodiments, determining the positional relationship between the object to be measured and the target dual-base station based on the measurement result includes:

[0049] When the measurement result is greater than the extension line threshold, determine that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points; the extension line range is a preset range of the extension line of the transmitter and receiver baselines including the target dual base station points;

[0050] When the measurement result is less than the vertical line threshold, it is determined that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base station points; the vertical line range is a preset range of the perpendicular midline of the baseline between the transmitter and the receiver of the target dual base station points.

[0051] In some embodiments, the selecting the optimal dual-base site from the multiple target dual-base sites based on the position relationship includes:

[0052] In the case where the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station, the target dual-base station is not selected;

[0053] In the case that the object to be measured is within the extension range of the transmitter and receiver baselines of the target dual-base station, the target dual-base station is selected as the optimal dual-base station.

[0054] In some embodiments, the measurement result includes one or more of the following information:

[0055] The rate of change of distance measurements;

[0056] The rate of change of speed measurement;

[0057] Doppler shift rate of change;

[0058] Signal power change rate.

[0059] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0060] Determine a distance measurement value corresponding to the object to be measured based on the perception information;

[0061] The distance measurement value change rate corresponding to the object to be measured is obtained based on the distance measurement value.

[0062] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0063] Determine a speed measurement value corresponding to the object to be measured based on the perception information;

[0064] The speed measurement value change rate corresponding to the object to be measured is obtained based on the speed measurement value.

[0065] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0066] Determine the Doppler frequency shift corresponding to the object to be measured based on the sensing information;

[0067] A Doppler frequency shift change rate corresponding to the object to be measured is obtained based on the Doppler frequency shift.

[0068] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0069] Determine the echo power corresponding to the object to be measured based on the sensing information;

[0070] The echo power change rate corresponding to the object to be measured is obtained based on the echo power.

[0071] In some embodiments, the perception function entity is deployed at the transmitting end, the receiving end, or the perception function entity is an independent entity.

[0072] In some embodiments, when the sensing function entity is deployed at the transmitting end, the processor is further configured to read the computer program in the memory and perform the following operations:

[0073] Triggering perceived business needs;

[0074] The sensing signal is sent periodically.

[0075] In some embodiments, when the sensing function entity is deployed at the receiving end, the processor is further configured to read the computer program in the memory and perform the following operations:

[0076] Receiving a sensed echo reflected by the object to be measured;

[0077] Perception information is determined based on the perception echo.

[0078] In a third aspect, an embodiment of the present application provides a dual-base site selection device, including:

[0079] A first determination module determines the positional relationship between the object to be measured and a plurality of target dual-base stations based on the sensing information; the target dual-base stations are dual-base stations that can cover the object to be measured;

[0080] The first selection module is used to select an optimal dual-base site from the multiple target dual-base sites based on the position relationship.

[0081] In some embodiments, the first determination module includes a first determination submodule and a second determination submodule, wherein:

[0082] The first determination submodule is used to determine the measurement results of the target dual base stations corresponding to the object to be measured based on the perception information;

[0083] The second determination submodule is used to determine the positional relationship between the object to be measured and the target dual-base site based on the measurement result.

[0084] In some embodiments, the second determining submodule includes a first determining unit and a second determining unit, wherein:

[0085] The first determination unit is used to determine that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points when the measurement result is greater than the extension line threshold; the extension line range is a preset range of the extension line of the transmitter and receiver baselines of the target dual base station points;

[0086] The second determination unit is used to determine that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base stations when the measurement result is less than the vertical line threshold; the vertical line range is a preset range of the perpendicular midline of the baseline between the transmitter and the receiver of the target dual base stations.

[0087] In some embodiments, the first selection module includes a first selection submodule and a second selection submodule, wherein:

[0088] The first selection submodule is used for not selecting the target dual-base station when the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station;

[0089] The second selection submodule is used to select the target dual-base station as the optimal dual-base station when the object to be measured is within the extension range of the transmitter and receiver baselines of the target dual-base station.

[0090] In some embodiments, the measurement result includes one or more of the following information:

[0091] The rate of change of distance measurements;

[0092] The rate of change of speed measurement;

[0093] Doppler shift rate of change;

[0094] Signal power change rate.

[0095] In some embodiments, the first determining submodule includes a first processing unit and a first acquiring unit, wherein:

[0096] The first processing unit is used to determine a distance measurement value corresponding to the object to be measured based on the perception information;

[0097] The first acquisition unit is used to acquire a distance measurement value change rate corresponding to the object to be measured based on the distance measurement value.

[0098] In some embodiments, the first determining submodule includes a second processing unit and a second acquiring unit, including:

[0099] The second processing unit is used to determine a speed measurement value corresponding to the object to be measured based on the perception information;

[0100] The second acquisition unit is used to acquire a speed measurement value change rate corresponding to the object to be measured based on the speed measurement value.

[0101] In some embodiments, the first determining submodule includes a third processing unit and a third obtaining unit, including:

[0102] The third processing unit is used to determine the Doppler frequency shift corresponding to the object to be measured based on the sensing information;

[0103] The third acquisition unit is used to acquire the Doppler frequency shift change rate corresponding to the object to be measured based on the Doppler frequency shift.

[0104] In some embodiments, the first determining submodule includes a fourth processing unit and a fourth acquiring unit, including:

[0105] The fourth processing unit is used to determine the echo power corresponding to the object to be measured based on the perception information;

[0106] The fourth acquisition unit is used to acquire the echo power change rate corresponding to the object to be measured based on the echo power.

[0107] In some embodiments, the perception function entity is deployed at the transmitting end, the receiving end, or the perception function entity is an independent entity.

[0108] In some embodiments, when the sensing function entity is deployed at the transmitting end, the dual-base site selection device further includes:

[0109] A first trigger module, used to trigger the sensing service demand;

[0110] The first sending module is used to periodically send the perception signal.

[0111] In some embodiments, when the sensing function entity is deployed at the receiving end, the dual-base site selection device further includes:

[0112] A first receiving module, used for receiving a sensing echo reflected by the object to be measured;

[0113] The first processing module is used to determine the perception information based on the perception echo.

[0114] In a fourth aspect, an embodiment of the present application further provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, wherein the computer program is used to enable a processor to execute the dual-base site selection method described in the first aspect above.

[0115] In a fifth aspect, an embodiment of the present application further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the dual-base site selection method described in the first aspect above.

[0116] In a sixth aspect, an embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program is used to enable a computer to execute the dual-base site selection method described in the first aspect above.

[0117] In a seventh aspect, an embodiment of the present application further provides a communication device, wherein a computer program is stored in the communication device, and the computer program is used to enable the communication device to execute the dual-base site selection method described in the first aspect above.

[0118] In an eighth aspect, an embodiment of the present application further provides a chip product, wherein a computer program is stored in the chip product, and the computer program is used to enable the chip product to execute the dual-base site selection method described in the first aspect as described above.

[0119] The dual-base site selection method, device and storage medium provided in the embodiments of the present application can determine the positional relationship between the object to be measured and multiple target dual-base sites through the perception function entity, and select a reasonable dual-base site based on the positional relationship, which can reduce the complexity of calculation and reduce the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0120] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0121] Figure 1 It is an equidistant line diagram of dual base stations provided in an embodiment of the present application;

[0122] Figure 2 is a flow chart of a method for selecting a dual-base site provided in an embodiment of the present application;

[0123] Figure 3 is a schematic diagram of a dual-base station provided in an embodiment of the present application for sensing a scene;

[0124] Figure 4 is a schematic diagram of the structure of a perception function entity provided in an embodiment of the present application;

[0125] Figure 5 It is a structural schematic diagram of a dual-base site selection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0126] Synaesthesia integrated multi-station collaborative perception refers to the use of multiple synaesthesia integrated stations to perceive the target and fuse the perception data of multiple stations to obtain the target's information.

[0127] Figure 1 is an equidistant line diagram of dual base stations provided in the embodiment of the present application. Figure 1As shown in the figure, the distance from any point on a certain elliptical dotted line to the transmitter (TX) and the receiver (RX) of the dual base station is equal. The distance difference between adjacent elliptical dotted lines is the distance resolution. For example, dense elliptical dotted lines indicate high resolution, and sparse elliptical dotted lines indicate low resolution. The distance resolution of the dual base station is related to the position of the target. For the target on the same distance contour line, when the target is located on the extension line of the baseline (TX-RX), the distance resolution is the highest, and when the target is located on the vertical line of the midpoint between the transmitter and the receiver, the distance resolution is the lowest. Similarly, the speed resolution of the dual base station is also related to the position of the target. When the target is located on the extension line of the baseline (TX-RX), the speed resolution is the highest, and when the target is located on the vertical line of the midpoint between the transmitter and the receiver, the speed resolution is the lowest. Therefore, in a multi-station collaborative perception network based on dual-base perception, due to the limitations of resources, computing power, power consumption and other conditions, if the number of stations participating in perception at the same time is limited, how to select appropriate stations from many stations to participate in perception to achieve the best perception result is an urgent problem to be solved.

[0128] Based on the above technical problems, an embodiment of the present application proposes a method for selecting a dual-base site. This method can determine the positional relationship between the object to be measured and multiple target dual-base sites through a sensing function entity, and select a reasonable dual-base site based on the positional relationship. This method can reduce the complexity of calculation and reduce the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites.

[0129] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0130] Figure 2 FIG. 1 is a flow chart of a method for selecting a dual-base station provided in an embodiment of the present application. Figure 2 As shown, the embodiment of the present application provides a method for selecting a dual-base site, the execution subject of which may be a perception function entity, the perception function entity may be a separate entity including a perception function module, or may be a transmitter including a perception function module, or a receiver including a perception function module. The method includes:

[0131] Step 201: determine the positional relationship between the object to be measured and a plurality of target dual-base stations based on the sensing information; the target dual-base stations are dual-base stations that can cover the object to be measured.

[0132] Specifically, the transmitter and receiver of the dual base station are deployed at different locations, and the receiver senses the object to be measured by receiving the echo signal emitted from the transmitter and reflected by the object to be measured. The receiver can obtain perception information from the echo signal, and the perception information can be the sum of the distances from the object to be measured to the transmitter and the receiver, the distance difference from the object to be measured to the transmitter and the receiver, the signal-to-noise ratio, the subcarrier frequency and other information. The perception function entity can calculate the distance measurement value change rate, the speed measurement value change rate, the Doppler frequency shift change rate, the signal power change rate and other measurement results based on the perception information. Then the perception function entity can determine the positional relationship between the object to be measured and multiple target dual base stations based on these measurement results.

[0133] The positional relationship between the object to be measured and multiple target dual-base sites can be determined by setting a threshold.

[0134] For example, when the measurement result is greater than the extension line threshold, it can be determined that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points.

[0135] For another example, when the measurement result is less than the vertical line threshold, it can be determined that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base station points.

[0136] Among them, Figure 1 For example, the baseline between the transmitter and the receiver refers to the line connecting the transmitter and the receiver, and the extension line of the baseline between the transmitter and the receiver refers to a straight line x connecting the transmitter and the receiver. The extension line range refers to the range formed by the area whose vertical distance from the straight line x is less than the preset value. The preset value can be set based on the application scenario of the dual-base site or according to the extension line threshold. For example, in the highway scenario, the extension line range can be set to cover a section of the highway.

[0137] by Figure 1 Taking the dual-base station in as an example, the vertical line of the baseline between the transmitter and the receiver refers to the straight line y located at the midpoint of the line connecting the transmitter and the receiver and perpendicular to the straight line x. The vertical line range refers to the range formed by the area whose vertical distance from the straight line y is less than the preset value. The preset value can be set based on the application scenario of the dual-base station or according to the vertical line threshold. When it is determined that the object to be measured is located in the vertical line range of a dual-base station, the perception function entity will not select the dual-base station for perception measurement.

[0138] The target dual-base station may be a dual-base station that can receive the echo signal emitted from the transmitter and reflected by the object to be measured, or may be multiple dual-base stations in a preset area, or may be multiple preset adjacent dual-base stations. The object to be measured may be a moving vehicle, train, aircraft, etc.

[0139] The sensing function module can be located at the transmitter position (ie, the transmitting end) of the dual base station, or at the receiver position (ie, the receiving end), or at a separate position. The synaesthesia integration system includes one or more dual base stations.

[0140] Step 202: Select an optimal dual-base station from the multiple target dual-base stations based on the position relationship.

[0141] Specifically, according to the obtained positional relationship between the object to be measured and the multiple target dual-base stations, when the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station, the perception function module may not select the target dual-base station as the perception station, and select other dual-base transceiver stations for perception. When the object to be measured is within the extended line range of the transmitter and receiver baseline of the target dual-base station, the perception function module may select the target dual-base station as the perception station. It is also possible to select the target dual-base station corresponding to the highest measurement result as the perception station based on the calculated measurement results.

[0142] The dual-base site selection method provided in the embodiment of the present application can determine the positional relationship between the object to be measured and multiple target dual-base sites through the perception function entity, and select a reasonable dual-base site based on the positional relationship, which can reduce the complexity of calculation and reduce the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites.

[0143] In some embodiments, determining the positional relationship between the object to be detected and the plurality of target dual-base stations based on the sensing information includes:

[0144] Determine, based on the sensing information, a measurement result of a target dual base station point corresponding to the object to be measured;

[0145] The positional relationship between the object to be measured and the target dual-base site is determined based on the measurement result.

[0146] Specifically, the receiver can obtain the sensing information from the echo signal, and the sensing information can be the distance from the object to be measured to the transmitter and the receiver, the signal-to-noise ratio and other information. The sensing function module can calculate the distance measurement value change rate, the speed measurement value change rate, the Doppler frequency shift change rate, the signal power change rate and other measurement results based on the sensing information. Then the sensing function module can determine the positional relationship between the object to be measured and multiple target dual-base sites based on these measurement results.

[0147] For example, the perception function module can calculate the rate of change of the distance measurement value of the object to be measured based on the change in the sum of the distances from the object to be measured to the transmitter and the receiver. The greater the rate of change of the distance measurement value, the closer the object to be measured is to the extension line of the baseline of the transmitter and the receiver of the target dual base station points; the smaller the rate of change of the distance measurement value, the closer the object to be measured is to the perpendicular bisector of the baseline between the transmitter and the receiver of the target dual base station points.

[0148] For another example, the perception function module can calculate the signal power change rate of the object to be measured based on the change in the signal-to-noise ratio. The larger the signal power change rate, the closer the object to be measured is to the extension line of the baseline between the transmitter and the receiver of the target dual base station points; the smaller the signal power change rate, the closer the object to be measured is to the perpendicular bisector of the baseline between the transmitter and the receiver of the target dual base station points.

[0149] The dual-base site selection method provided in the embodiment of the present application can select a reasonable dual-base site by determining the positional relationship between the object to be measured and multiple target dual-base sites through the perception function entity without calculating the specific position of the object to be measured, thereby reducing the complexity of calculation and the communication transmission volume between sites.

[0150] In some embodiments, determining the positional relationship between the object to be measured and the target dual-base station based on the measurement result includes:

[0151] When the measurement result is greater than the extension line threshold, determine that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points; the extension line range is a preset range of the extension line of the transmitter and receiver baselines including the target dual base station points;

[0152] When the measurement result is less than the vertical line threshold, it is determined that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base station points; the vertical line range is a preset range of the perpendicular midline of the baseline between the transmitter and the receiver of the target dual base station points.

[0153] Specifically, the larger the measurement result, the closer the object to be measured is to the extension line of the transmitter and receiver baseline of the target dual base station, and the smaller the measurement result, the closer the object to be measured is to the perpendicular bisector of the baseline between the transmitter and receiver of the target dual base station. The positional relationship between the object to be measured and the target dual base station can be determined by setting a threshold. Each measurement result has a corresponding preset threshold.

[0154] For example, when the velocity measurement value change rate is greater than the extension line threshold of the velocity measurement value change rate, it can be determined that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base stations. The larger the extension line threshold, the smaller the extension line range.

[0155] For another example, when the Doppler frequency shift change rate is less than the vertical line threshold of the Doppler frequency shift change rate, it can be determined that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base station. The larger the vertical line threshold, the smaller the vertical line range.

[0156] The dual-base site selection method provided in the embodiment of the present application can determine the positional relationship between the object to be measured and multiple target dual-base sites according to the size of the measurement results through the perception function entity, thereby reducing the communication transmission volume between the sites.

[0157] In some embodiments, the selecting the optimal dual-base site from the multiple target dual-base sites based on the position relationship includes:

[0158] In the case where the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station, the target dual-base station is not selected;

[0159] In the case that the object to be measured is within the extension range of the transmitter and receiver baselines of the target dual-base station, the target dual-base station is selected as the optimal dual-base station.

[0160] Specifically, according to the obtained positional relationship between the object to be measured and multiple target dual-base stations, when the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station, the perception function module may not select the target dual-base station as the perception station, and select other dual-base transceiver stations for perception. When the object to be measured is within the extended line range of the transmitter and receiver baseline of the target dual-base station, the perception function module may select the target dual-base station as the perception station. When the extension line threshold is large enough, so large that there is only one dual-base station in the extension line range, it can be considered that the target dual-base station corresponding to the highest measurement result is selected as the perception station.

[0161] The dual-base site selection method provided in the embodiment of the present application can select a reasonable dual-base site based on the positional relationship between the object to be measured and multiple target dual-base sites through the perception function entity without calculating the specific position of the object to be measured. It can reduce the complexity of calculation and the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites.

[0162] In some embodiments, the measurement result includes one or more of the following information:

[0163] The rate of change of distance measurements;

[0164] The rate of change of speed measurement;

[0165] Doppler shift rate of change;

[0166] Signal power change rate.

[0167] Specifically, the measurement result may be a distance measurement value change rate, a speed measurement value change rate, a Doppler frequency shift change rate, a signal power change rate, etc. Among them, the distance measurement value change rate indicates the change rate of the distance from the object to be measured to the target dual-base station over time, the speed measurement value change rate indicates the change rate of the speed of the object to be measured relative to the target dual-base station over time, the Doppler frequency shift change rate indicates the change rate of the value of the received echo deviating from the actual subcarrier frequency over time, and the signal power change rate indicates the change rate of the echo signal power over time. In addition to the above information, the measurement result may also be a Doppler frequency shift change value, a signal power change value, etc.

[0168] The dual-base site selection method provided in the embodiment of the present application can determine the positional relationship between the object to be measured and multiple target dual-base sites according to the size of the measurement results through the perception function entity, thereby reducing the communication transmission volume between the sites.

[0169] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0170] Determine a distance measurement value corresponding to the object to be measured based on the perception information;

[0171] The distance measurement value change rate corresponding to the object to be measured is obtained based on the distance measurement value.

[0172] Specifically, the receiver of the target dual base station reports the perception information to the perception function module, and the perception function module can determine the distance measurement value from the object to be measured to the target dual base station based on the distance information in the perception information, for example, the distance and distance difference from the object to be measured to the transmitter and the receiver. The perception information can also directly carry the distance measurement value from the object to be measured to the target dual base station. Then, the change rate of the distance measurement value is calculated based on the change of the distance measurement value over time.

[0173] The dual-base site selection method provided in the embodiment of the present application determines the positional relationship between the object to be measured and multiple target dual-base sites by the size of the rate of change of the distance measurement value over time, and selects a reasonable dual-base site based on the positional relationship. This can reduce the complexity of calculations and reduce the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites.

[0174] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0175] Determine a speed measurement value corresponding to the object to be measured based on the perception information;

[0176] The speed measurement value change rate corresponding to the object to be measured is obtained based on the speed measurement value.

[0177] Specifically, the receiver of the target dual-base station reports the perception information to the perception function module, and the perception function module can determine the speed measurement value of the object to be measured relative to the target dual-base station based on the distance information in the perception information, for example, the distance and distance difference from the object to be measured to the transmitter and the receiver, and the time information. The perception information can also directly carry the speed measurement value of the object to be measured relative to the target dual-base station. Then, the speed measurement value change rate is calculated based on the change of the speed measurement value over time.

[0178] The method for selecting dual-base sites provided in the embodiment of the present application determines the positional relationship between the object to be measured and multiple target dual-base sites by the size of the rate of change of the speed measurement value over time, and selects a reasonable dual-base site based on the positional relationship. This can reduce the complexity of calculations and the amount of communication transmission between sites, thereby improving the efficiency of selecting dual-base sites.

[0179] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0180] Determine the Doppler frequency shift corresponding to the object to be measured based on the sensing information;

[0181] A Doppler frequency shift change rate corresponding to the object to be measured is obtained based on the Doppler frequency shift.

[0182] Specifically, the receiver of the target dual base station reports the sensing information to the sensing function module, and the sensing function module can calculate the Doppler frequency shift change value based on the difference between the subcarrier frequency in the sensing information and the actual subcarrier frequency. The sensing information can also directly carry the Doppler frequency shift change value of the subcarrier frequency and the actual subcarrier frequency. The Doppler frequency shift change rate is then calculated based on the change of the Doppler frequency shift change value over time.

[0183] The method for selecting dual-base sites provided in the embodiment of the present application determines the positional relationship between the object to be measured and multiple target dual-base sites by the rate of change of the Doppler frequency shift change value over time, and selects reasonable dual-base sites based on the positional relationship. This can reduce the complexity of calculations and the amount of communication transmission between sites, thereby improving the efficiency of selecting dual-base sites.

[0184] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0185] Determine the echo power corresponding to the object to be measured based on the sensing information;

[0186] The echo power change rate corresponding to the object to be measured is obtained based on the echo power.

[0187] Specifically, the receiver of the target dual base station reports the sensing information to the sensing function module, and the sensing function module can calculate the signal power change value based on the signal power in the sensing information, and the sensing information can also directly carry the signal power change value. Then, the signal power change rate is calculated based on the change of the signal power change value over time.

[0188] The dual-base site selection method provided in the embodiment of the present application determines the positional relationship between the object to be measured and multiple target dual-base sites by the size of the rate of change of the signal power change value over time, and selects a reasonable dual-base site based on the positional relationship. It can reduce the complexity of calculation and reduce the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites.

[0189] In some embodiments, the perception function entity is deployed at the transmitting end, the receiving end, or the perception function entity is an independent entity.

[0190] Specifically, the execution subject of the embodiment of the present application may be a perception function entity, which may be a separate entity including a perception function module, or a transmitting end including a perception function module, or a receiving end including a perception function module. When the perception service demand is triggered, the transmitter of the target dual base station periodically sends a perception signal. The receiver of the target dual base station receives the perception echo and determines the perception information based on the perception echo. The receiver of the target dual base station then reports the perception information to the perception function module, which may be located at the transmitter position, or the receiver position, or a separate position of the dual base station. The perception function module selects one or more appropriate target dual-base stations based on the received perception signal, and issues perception measurement commands to these stations.

[0191] For example, when the perception function entity is a separate entity including a perception function module, the receiver of the target dual-base station needs to report the perception information to the perception function entity, and the perception function entity can send perception measurement commands to these stations after selecting appropriate target dual-base stations according to the perception information. The perception function entity can be an existing network device, such as an Access and Mobility Management Function (AMF) network element, a Radio Access Network (RAN) network element, etc., or a newly added network device.

[0192] The dual-base site selection method provided in the embodiment of the present application can determine the positional relationship between the object to be measured and multiple target dual-base sites through the perception function entity, and select a reasonable dual-base site based on the positional relationship, which can reduce the complexity of calculation and reduce the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites.

[0193] In some embodiments, when the sensing function entity is deployed at a transmitting end, the method further includes:

[0194] Triggering perceived business needs;

[0195] The sensing signal is sent periodically.

[0196] Specifically, the execution subject of the embodiment of the present application may be a perception function entity, which may be a separate entity including a perception function module, or a transmitting end including a perception function module, or a receiving end including a perception function module. When the perception service demand is triggered, the transmitter of the target dual base station periodically sends a perception signal. The receiver of the target dual base station receives the perception echo and determines the perception information based on the perception echo. The receiver of the target dual base station then reports the perception information to the perception function module, which may be located at the transmitter position, or the receiver position, or a separate position of the dual base station. The perception function module selects one or more appropriate target dual-base stations based on the received perception signal, and issues perception measurement commands to these stations.

[0197] For example, in the case where the perception function entity is a transmitter including a perception function module, the receiver of the target dual-base station needs to report the perception information to the transmitter, and the transmitter can send perception measurement commands to these stations after selecting appropriate target dual-base stations according to the perception information. In this case, the perception function entity does not need to be additionally configured with information sending equipment.

[0198] The dual-base site selection method provided in the embodiment of the present application can determine the positional relationship between the object to be measured and multiple target dual-base sites through the perception function entity, and select a reasonable dual-base site based on the positional relationship, which can reduce the complexity of calculation and reduce the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites.

[0199] In some embodiments, when the sensing function entity is deployed at a receiving end, the method further includes:

[0200] Receiving a sensed echo reflected by the object to be measured;

[0201] Perception information is determined based on the perception echo.

[0202] Specifically, the execution subject of the embodiment of the present application may be a perception function entity, which may be a separate entity including a perception function module, or a transmitting end including a perception function module, or a receiving end including a perception function module. When the perception service demand is triggered, the transmitter of the target dual base station periodically sends a perception signal. The receiver of the target dual base station receives the perception echo and determines the perception information based on the perception echo. The receiver of the target dual base station then reports the perception information to the perception function module, which may be located at the transmitter position, or the receiver position, or a separate position of the dual base station. The perception function module selects one or more appropriate target dual-base stations based on the received perception signal, and issues perception measurement commands to these stations.

[0203] For example, in the case where the perception function entity is a receiving end including a perception function module, the receiver of the target dual-base station needs to report the perception information to the receiver, and the receiver can send perception measurement commands to these stations after selecting appropriate target dual-base stations according to the perception information. In this case, the perception function entity does not need to be additionally configured with information receiving equipment. And in the case where the perception function entity is deployed at a receiver of a target dual-base station, the receiver of the target dual-base station does not need to report the perception information.

[0204] The dual-base site selection method provided in the embodiment of the present application can determine the positional relationship between the object to be measured and multiple target dual-base sites through the perception function entity, and select a reasonable dual-base site based on the positional relationship, which can reduce the complexity of calculation and reduce the communication transmission volume between sites, thereby improving the efficiency of selecting dual-base sites.

[0205] The method in the above embodiment is further described below with reference to several specific examples.

[0206] Figure 3 is a schematic diagram of a dual-base station provided in an embodiment of the present application for sensing a scene, such as Figure 3 As shown in the figure, it is a highway scene, and there are multiple dual-base stations for sensing the distance and speed of the target vehicle T in the scene. Among them, TX1 and RX1 form a dual-base transceiver station 1, and TX2 and RX2 form a dual-base transceiver station 2. The solid ellipse in the figure is the equidistance line of the dual-base transceiver station 1, and the distance difference between adjacent solid ellipse lines is the distance resolution. The dotted ellipse is the equidistance line of the dual-base transceiver station 2, and the distance difference between adjacent dotted ellipse lines is the distance resolution. There is a vehicle target T to be sensed on the road, and the target T can only move left or right along the road.

[0207] Example 1:

[0208] like Figure 3The target T moves from left to right along the road. The transmitter of the dual-base transceiver station 1 or the dual-base transceiver station 2 periodically transmits a sensing signal, and the receiver performs distance sensing. Figure 3 It can be seen that the location of target T crosses the most dense distance and equidistance line of dual-base transceiver station 1. Therefore, the distance that dual-base transceiver station 1 can measure to target T changes greatly over time. Although the specific location of target T cannot be determined at this time, it can be determined that target T is located near the extension line of the baseline of dual-base transceiver station 1. Dual-base transceiver station 1 is a suitable choice for sensing this target. The transceiver station baseline refers to the line connecting the transmitter and the receiver of the dual-base transceiver station, and the extension line of the baseline refers to the straight line connecting the transmitter and the receiver.

[0209] For the dual-base transceiver station 2, Figure 3 It can be seen that the target T moves almost along a certain distance and equidistance line of the bistatic transceiver station 2. Therefore, the bistatic transceiver station 2 can hardly measure the distance change of the target T over time. Although the specific position of the target T is not determined at this time, it can be determined that the target T is located near the perpendicular line of the midpoint between the transmitting end and the receiving end of the bistatic transceiver station 2. The bistatic transceiver station 2 is not a suitable choice for sensing this target. The perpendicular line of the midpoint between the transmitting end and the receiving end of the transceiver station refers to a straight line perpendicular to the midpoint of the line connecting the transmitter and the receiver of the bistatic transceiver station.

[0210] The specific implementation steps are:

[0211] Step 1: When the sensing service demand is triggered, the transmitters of all or part of the dual-base transceiver stations within the sensing range periodically send distance sensing signals or speed sensing signals.

[0212] Step 2: The receiver of the dual-base transceiver station receives the sensing echo to perform distance detection or speed detection.

[0213] Step 3: The receiver uses a dual-base mode distance measurement algorithm or a speed measurement algorithm to calculate the target's distance or dual-base angle bisector speed value at two or more measurement times.

[0214] Step 4: The receiver of each dual-base transceiver station reports the distance or speed measurement results of each measurement opportunity to the perception function module.

[0215] Step 5: The perception function module analyzes the distance or speed measurement results at each measurement opportunity to obtain the distance measurement value change rate or speed measurement value change rate of each bistatic transceiver station. The perception function module selects one or more bistatic transceiver stations with the largest distance measurement value change rate or speed measurement value change rate as the execution sites for high-precision perception measurement, and sends perception measurement commands to these sites.

[0216] Example 2:

[0217] set up Figure 3The target T moves from right to left along the road. The transmitter of the bistatic transceiver station 1 or the bistatic transceiver station 2 periodically transmits the sensing signal. The receiver of the bistatic transceiver station receives the sensing signal echo and measures the Doppler shift of each subcarrier, that is, the value of the deviation from the actual subcarrier frequency. Since the Doppler shift of the target T in the direction of the bistatic angle bisector of the bistatic transceiver station 1 is large, although the specific position of the target T is uncertain, it can be judged that the target T is located near the extension line of the bistatic transceiver station baseline. Bistatic transceiver station 1 is a suitable choice for sensing this target.

[0218] For the dual-base transceiver station 2, Figure 3 It can be seen that the target T moves almost along the perpendicular direction of the bi-base angle bisector of the bi-base transceiver station 2. The Doppler shift of the target T in the direction of the bi-base angle bisector of the bi-base transceiver station 2 is extremely small. Although the specific position of the target T is uncertain, it can be determined that the target T is located near the perpendicular line of the midpoint between the transmitting end and the receiving end of the bi-base transceiver station 2. The bi-base transceiver station 2 is not a suitable choice for sensing this target.

[0219] The specific implementation steps are:

[0220] Step 1: When the sensing service demand is triggered, the transmitters of all or part of the dual-base transceiver stations within the sensing range periodically send sensing signals.

[0221] Step 2: The receiver of the dual-base transceiver station receives the sensed echo and performs Doppler frequency shift detection.

[0222] Step 3: The receiver of each dual-base transceiver station reports the Doppler frequency shift measurement results of each measurement opportunity to the perception function module.

[0223] Step 4: The perception function module analyzes the Doppler frequency shift results measured by each dual-base transceiver station. The perception function module selects one or more dual-base transceiver stations with the largest Doppler frequency shift as execution sites for high-precision perception measurement, and sends perception measurement commands to these sites.

[0224] Example three:

[0225] According to the principle of radar system, the distance equation of dual-base stations is as follows:

[0226]

[0227] Among them, R t is the distance from the transmitter to the target, R r is the distance from the receiver to the target, P t is the transmitter power, G t is the transmit gain, G r is the receiver gain, λ is the signal wavelength, σ β is the bistatic scattering cross section of the target, P ris the echo power received by the receiver.

[0228] The minimum detectable signal power (P r ) min It can be expressed as:

[0229] (P r ) min =kT s B n (S / N) min (2)

[0230] Where k is the Boltzmann constant, T s is the noise temperature of the receiver system, in K, B n is the receiver noise bandwidth, (S / N) min The minimum output signal-to-noise ratio required to detect a signal.

[0231] Substituting equation (2) into equation (1), we can get the maximum detectable distance of the bistatic radar:

[0232]

[0233] For ease of analysis, we can use:

[0234]

[0235] The expression of the signal-to-noise ratio contour of the bistatic radar system can be obtained as follows:

[0236]

[0237] The midpoint O of the baseline is the origin, the distance between the target and the origin is r, and the angle between the line between the target and the origin and the baseline is θ g , we can use the polar coordinate system to represent R t R r as follows:

[0238] (R t R r ) 2 =(r 2 +L 2 / 4) 2 -r 2 L 2 cos 2 θ g (6)

[0239] Substituting equation (6) into equation (5), we can get the expression of the signal-to-noise ratio contour in polar coordinates:

[0240]

[0241] It can be seen from the dual-base mode signal-to-noise ratio contour expression (7) that the dual-base site distance and contour are not collinear with the signal-to-noise ratio contour, so the echo power varies with the different positions of the target on the distance and contour. This geometric characteristic provides additional information for solving the problem of cooperative sensing node selection and improving the sensing resolution.

[0242] When the target moves along the extension line of the baseline of the dual-base transceiver station, the signal-to-noise ratio changes dramatically. Therefore, the target's echo signal power changes greatly. However, when the target moves horizontally near the vertical line of the midpoint between the transmitter and the receiver, the signal-to-noise ratio changes very little. Therefore, the target's echo signal power changes very little. Although the specific position of the target cannot be determined by the change in the target echo signal power, it can be estimated whether the target is near the extension line of the baseline of the dual-base transceiver station or near the vertical line of the midpoint between the transmitter and the receiver. With this information, a reasonable sensing site can be selected.

[0243] The specific implementation steps are:

[0244] Step 1: When the sensing service demand is triggered, the transmitters of all or part of the dual-base transceiver stations within the sensing range periodically send sensing signals.

[0245] Step 2: The receiver of the dual-base transceiver station receives the sensed echo and measures the echo power.

[0246] Step 3: The receiver of each dual-base transceiver station reports the echo power measurement results of each measurement opportunity to the sensing function module.

[0247] Step 4: The perception function module analyzes the echo power measurement results obtained by each dual-base transceiver station. The perception function module selects one or more dual-base transceiver stations with the largest echo power changes as execution sites for high-precision perception measurement, and sends perception measurement commands to these sites.

[0248] The dual-base site selection method provided in the embodiment of the present application can select a reasonable dual-base site by determining the positional relationship between the object to be measured and multiple target dual-base sites through the perception function entity without calculating the specific position of the object to be measured. This can reduce the complexity of calculation and the amount of communication transmission between sites, thereby improving the efficiency of selecting dual-base sites.

[0249] Figure 4 is a schematic diagram of the structure of a perception function entity provided in an embodiment of the present application, such as Figure 4 As shown, the sensing function entity includes a memory 420, a transceiver 400, and a processor 410, wherein:

[0250] The memory 420 is used to store computer programs; the transceiver 400 is used to send and receive data under the control of the processor 410; the processor 410 is used to read the computer program in the memory 420 and perform the following operations:

[0251] Determine the positional relationship between the object to be measured and a plurality of target dual-base stations based on the sensing information; the target dual-base stations are dual-base stations that can cover the object to be measured;

[0252] An optimal dual-base site is selected from the multiple target dual-base sites based on the position relationship.

[0253] Specifically, in Figure 4 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 410 and memory represented by memory 420. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 400 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include a wireless channel, a wired channel, an optical cable, and other transmission media.

[0254] The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 410 when performing operations.

[0255] In some embodiments, the processor 410 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0256] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0257] In some embodiments, determining the positional relationship between the object to be detected and the plurality of target dual-base stations based on the sensing information includes:

[0258] Determine, based on the sensing information, a measurement result of a target dual base station point corresponding to the object to be measured;

[0259] The positional relationship between the object to be measured and the target dual-base site is determined based on the measurement result.

[0260] In some embodiments, determining the positional relationship between the object to be measured and the target dual-base station based on the measurement result includes:

[0261] When the measurement result is greater than the extension line threshold, determine that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points; the extension line range is a preset range of the extension line of the transmitter and receiver baselines including the target dual base station points;

[0262] When the measurement result is less than the vertical line threshold, it is determined that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base station points; the vertical line range is a preset range of the perpendicular midline of the baseline between the transmitter and the receiver of the target dual base station points.

[0263] In some embodiments, the selecting the optimal dual-base site from the multiple target dual-base sites based on the position relationship includes:

[0264] In the case where the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station, the target dual-base station is not selected;

[0265] In the case that the object to be measured is within the extension range of the transmitter and receiver baselines of the target dual-base station, the target dual-base station is selected as the optimal dual-base station.

[0266] In some embodiments, the measurement result includes one or more of the following information:

[0267] The rate of change of distance measurements;

[0268] The rate of change of speed measurement;

[0269] Doppler shift rate of change;

[0270] Signal power change rate.

[0271] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0272] Determine a distance measurement value corresponding to the object to be measured based on the perception information;

[0273] The distance measurement value change rate corresponding to the object to be measured is obtained based on the distance measurement value.

[0274] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0275] Determine a speed measurement value corresponding to the object to be measured based on the perception information;

[0276] The speed measurement value change rate corresponding to the object to be measured is obtained based on the speed measurement value.

[0277] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0278] Determine the Doppler frequency shift corresponding to the object to be measured based on the sensing information;

[0279] A Doppler frequency shift change rate corresponding to the object to be measured is obtained based on the Doppler frequency shift.

[0280] In some embodiments, determining the measurement result of the target dual base station points corresponding to the object to be measured based on the perception information includes:

[0281] Determine the echo power corresponding to the object to be measured based on the sensing information;

[0282] The echo power change rate corresponding to the object to be measured is obtained based on the echo power.

[0283] In some embodiments, the perception function entity is deployed at the transmitting end, the receiving end, or the perception function entity is an independent entity.

[0284] In some embodiments, when the sensing function entity is deployed at the transmitting end, the processor is further configured to read the computer program in the memory and perform the following operations:

[0285] Triggering perceived business needs;

[0286] The sensing signal is sent periodically.

[0287] In some embodiments, when the sensing function entity is deployed at the receiving end, the processor is further configured to read the computer program in the memory and perform the following operations:

[0288] Receiving a sensed echo reflected by the object to be measured;

[0289] Perception information is determined based on the perception echo.

[0290] It should be noted here that the above-mentioned perception function entity provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the above-mentioned execution subject is the perception function entity, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0291] Figure 5 is a schematic diagram of the structure of a dual-base station selection device provided in an embodiment of the present application, such as Figure 5 As shown, the embodiment of the present application provides a dual-base station selection device, including a first determination module 501 and a first selection module 502, wherein:

[0292] A first determination module 501 determines the positional relationship between the object to be measured and a plurality of target dual-base stations based on the sensing information; the target dual-base stations are dual-base stations that can cover the object to be measured;

[0293] The first selection module 502 is configured to select an optimal dual-base station from the multiple target dual-base stations based on the position relationship.

[0294] In some embodiments, the first determination module includes a first determination submodule and a second determination submodule, wherein:

[0295] The first determination submodule is used to determine the measurement results of the target dual base stations corresponding to the object to be measured based on the perception information;

[0296] The second determination submodule is used to determine the positional relationship between the object to be measured and the target dual-base site based on the measurement result.

[0297] In some embodiments, the second determining submodule includes a first determining unit and a second determining unit, wherein:

[0298] The first determination unit is used to determine that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points when the measurement result is greater than the extension line threshold; the extension line range is a preset range of the extension line of the transmitter and receiver baselines of the target dual base station points;

[0299] The second determination unit is used to determine that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base stations when the measurement result is less than the vertical line threshold; the vertical line range is a preset range of the perpendicular midline of the baseline between the transmitter and the receiver of the target dual base stations.

[0300] In some embodiments, the first selection module includes a first selection submodule and a second selection submodule, wherein:

[0301] The first selection submodule is used for not selecting the target dual-base station when the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station;

[0302] The second selection submodule is used to select the target dual-base station as the optimal dual-base station when the object to be measured is within the extension range of the transmitter and receiver baselines of the target dual-base station.

[0303] In some embodiments, the measurement result includes one or more of the following information:

[0304] The rate of change of distance measurements;

[0305] The rate of change of speed measurement;

[0306] Doppler shift rate of change;

[0307] Signal power change rate.

[0308] In some embodiments, the first determining submodule includes a first processing unit and a first acquiring unit, wherein:

[0309] The first processing unit is used to determine a distance measurement value corresponding to the object to be measured based on the perception information;

[0310] The first acquisition unit is used to acquire a distance measurement value change rate corresponding to the object to be measured based on the distance measurement value.

[0311] In some embodiments, the first determining submodule includes a second processing unit and a second acquiring unit, including:

[0312] The second processing unit is used to determine a speed measurement value corresponding to the object to be measured based on the perception information;

[0313] The second acquisition unit is used to acquire a speed measurement value change rate corresponding to the object to be measured based on the speed measurement value.

[0314] In some embodiments, the first determining submodule includes a third processing unit and a third obtaining unit, including:

[0315] The third processing unit is used to determine the Doppler frequency shift corresponding to the object to be measured based on the sensing information;

[0316] The third acquisition unit is used to acquire the Doppler frequency shift change rate corresponding to the object to be measured based on the Doppler frequency shift.

[0317] In some embodiments, the first determining submodule includes a fourth processing unit and a fourth acquiring unit, including:

[0318] The fourth processing unit is used to determine the echo power corresponding to the object to be measured based on the perception information;

[0319] The fourth acquisition unit is used to acquire the echo power change rate corresponding to the object to be measured based on the echo power.

[0320] In some embodiments, the perception function entity is deployed at the transmitting end, the receiving end, or the perception function entity is an independent entity.

[0321] In some embodiments, when the sensing function entity is deployed at the transmitting end, the dual-base site selection device further includes:

[0322] A first trigger module, used to trigger the sensing service demand;

[0323] The first sending module is used to periodically send the perception signal.

[0324] In some embodiments, when the sensing function entity is deployed at the receiving end, the dual-base site selection device further includes:

[0325] A first receiving module, used for receiving a sensing echo reflected by the object to be measured;

[0326] The first processing module is used to determine the perception information based on the perception echo.

[0327] Specifically, the above-mentioned dual-base site selection device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the above-mentioned execution subject is a perception function entity, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0328] It should be noted that the division of units / modules in the above embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, the functional units in the various embodiments of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated units may be implemented in the form of hardware or in the form of software functional units.

[0329] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0330] In some embodiments, a non-transitory readable storage medium is further provided, wherein the non-transitory readable storage medium stores a computer program, wherein the computer program is used to enable a processor to execute the dual-base site selection method provided in the above-mentioned method embodiments.

[0331] Specifically, the above-mentioned non-transitory readable storage medium provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects that are the same as the method embodiments in this embodiment will not be described in detail here.

[0332] It should be noted that the non-transitory readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0333] In some embodiments, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to enable a processor to execute the dual-base site selection method provided in the above-mentioned method embodiments.

[0334] Specifically, the processor-readable storage medium provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects that are the same as those in the method embodiments will not be described in detail herein.

[0335] In some embodiments, a computer-readable storage medium is further provided, wherein the computer-readable storage medium stores a computer program, and the computer program is used to enable a computer to execute the dual-base site selection method provided by the above-mentioned method embodiments.

[0336] Specifically, the above-mentioned computer-readable storage medium provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0337] In some embodiments, a communication device is further provided, wherein a computer program is stored in the communication device, and the computer program is used to enable the communication device to execute the dual-base site selection method provided by the above-mentioned method embodiments.

[0338] Specifically, the above-mentioned communication device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects that are the same as the method embodiments in this embodiment will not be described in detail here.

[0339] In some embodiments, a chip product is further provided, wherein a computer program is stored in the chip product, and wherein the computer program is used to enable the chip product to execute the dual-base site selection method provided in the above-mentioned method embodiments.

[0340] Specifically, the above-mentioned chip product provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0341] It should also be noted that the terms "first", "second", etc. in the embodiments of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0342] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0343] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0344] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0345] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0346] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0347] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0348] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0349] In this application, "determine B based on A" means that the factor A should be considered when determining B. It is not limited to "B can be determined based on A alone", but should also include: "determine B based on A and C", "determine B based on A, C and E", "determine C based on A, and further determine B based on C", etc. In addition, it can also include taking A as a condition for determining B, for example, "when A meets the first condition, use the first method to determine B"; for example, "when A meets the second condition, determine B", etc.; for example, "when A meets the third condition, determine B based on the first parameter", etc. Of course, it can also be a condition that takes A as a factor for determining B, for example, "when A meets the first condition, use the first method to determine C, and further determine B based on C", etc.

[0350] Network devices and terminal devices can each use one or more antennas for multi-input multi-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.

[0351] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0352] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0353] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0354] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0355] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for selecting a dual-base station, applied to a sensing function entity, characterized in that: include: Determine the positional relationship between the object to be measured and multiple target dual-base stations based on the sensing information; The target dual-base station is a dual-base station that can cover the object to be measured; An optimal dual-base site is selected from the multiple target dual-base sites based on the position relationship.

2. The method for selecting a dual-base station according to claim 1, characterized in that: The determining of the positional relationship between the object to be measured and the plurality of target dual-base stations based on the sensing information includes: Determine, based on the sensing information, a measurement result of a target dual base station point corresponding to the object to be measured; The positional relationship between the object to be measured and the target dual-base site is determined based on the measurement result.

3. The method for selecting a dual-base station according to claim 2, characterized in that: The determining the positional relationship between the object to be measured and the target dual-base site based on the measurement result includes: When the measurement result is greater than the extension line threshold, determine that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points; the extension line range is a preset range of the extension line of the transmitter and receiver baselines including the target dual base station points; When the measurement result is less than the vertical line threshold, it is determined that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base station points; the vertical line range is a preset range of the perpendicular midline of the baseline between the transmitter and the receiver of the target dual base station points.

4. The method for selecting a dual-base station according to claim 3, characterized in that: The selecting the optimal dual-base site from the multiple target dual-base sites based on the position relationship includes: In the case where the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station, the target dual-base station is not selected; In the case that the object to be measured is within the extension range of the transmitter and receiver baselines of the target dual-base station, the target dual-base station is selected as the optimal dual-base station.

5. The method for selecting a dual-base station according to claim 2, characterized in that: The measurement result includes one or more of the following information: The rate of change of distance measurements; The rate of change of speed measurement; Doppler shift rate of change; Signal power change rate.

6. The method for selecting a dual-base station according to claim 5, characterized in that: The determining, based on the perception information, a measurement result of a target dual base station point corresponding to the object to be measured, includes: Determine a distance measurement value corresponding to the object to be measured based on the perception information; The distance measurement value change rate corresponding to the object to be measured is obtained based on the distance measurement value.

7. The method for selecting a dual-base station according to claim 5, characterized in that: The determining, based on the perception information, a measurement result of a target dual base station point corresponding to the object to be measured, includes: Determine a speed measurement value corresponding to the object to be measured based on the perception information; The speed measurement value change rate corresponding to the object to be measured is obtained based on the speed measurement value.

8. The method for selecting a dual-base station according to claim 5, characterized in that: The determining, based on the perception information, a measurement result of a target dual base station point corresponding to the object to be measured, includes: Determine the Doppler frequency shift corresponding to the object to be measured based on the sensing information; A Doppler frequency shift change rate corresponding to the object to be measured is obtained based on the Doppler frequency shift.

9. The method for selecting a dual-base station according to claim 5, characterized in that: The determining, based on the perception information, a measurement result of a target dual base station point corresponding to the object to be measured, includes: Determine the echo power corresponding to the object to be measured based on the sensing information; The echo power change rate corresponding to the object to be measured is obtained based on the echo power.

10. The method for selecting a dual-base station according to claim 1, characterized in that: The perception function entity is deployed at the transmitting end, the receiving end or the perception function entity is an independent entity.

11. The method for selecting a dual-base station according to claim 1, characterized in that: In the case where the sensing function entity is deployed at the transmitting end, the method further includes: Triggering perceived business needs; The sensing signal is sent periodically.

12. The method for selecting a dual-base station according to claim 1, characterized in that: In the case where the perception function entity is deployed at the receiving end, the method further includes: Receiving a sensed echo reflected by the object to be measured; Perception information is determined based on the perception echo.

13. A perception functional entity, characterized in that: Including memory, transceiver, processor; a memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Determine the positional relationship between the object to be measured and multiple target dual-base stations based on the sensing information; The target dual-base station is a dual-base station that can cover the object to be measured; An optimal dual-base site is selected from the multiple target dual-base sites based on the position relationship.

14. The sensing functional entity according to claim 13, characterized in that: The determining of the positional relationship between the object to be measured and the plurality of target dual-base stations based on the sensing information includes: Determine, based on the sensing information, a measurement result of a target dual base station point corresponding to the object to be measured; The positional relationship between the object to be measured and the target dual-base site is determined based on the measurement result.

15. The sensing functional entity according to claim 14, characterized in that: The determining the positional relationship between the object to be measured and the target dual-base site based on the measurement result includes: When the measurement result is greater than the extension line threshold, determine that the object to be measured is within the extension line range of the transmitter and receiver baselines of the target dual base station points; the extension line range is a preset range of the extension line of the transmitter and receiver baselines including the target dual base station points; When the measurement result is less than the vertical line threshold, it is determined that the object to be measured is within the vertical line range of the baseline between the transmitter and the receiver of the target dual base station points; the vertical line range is a preset range of the perpendicular midline of the baseline between the transmitter and the receiver of the target dual base station points.

16. The sensing functional entity according to claim 15, characterized in that: The selecting the optimal dual-base site from the multiple target dual-base sites based on the position relationship includes: In the case where the object to be measured is within the vertical range of the baseline between the transmitter and the receiver of the target dual-base station, the target dual-base station is not selected; In the case that the object to be measured is within the extension range of the transmitter and receiver baselines of the target dual-base station, the target dual-base station is selected as the optimal dual-base station.

17. The sensing functional entity according to claim 14, characterized in that: The measurement result includes one or more of the following information: The rate of change of distance measurements; The rate of change of speed measurement; Doppler shift rate of change; Signal power change rate.

18. The sensing functional entity according to claim 17, characterized in that: The determining, based on the perception information, a measurement result of a target dual base station point corresponding to the object to be measured, includes: Determine a distance measurement value corresponding to the object to be measured based on the perception information; The distance measurement value change rate corresponding to the object to be measured is obtained based on the distance measurement value.

19. The sensing functional entity according to claim 17, characterized in that: The determining, based on the perception information, a measurement result of a target dual base station point corresponding to the object to be measured, includes: Determine a speed measurement value corresponding to the object to be measured based on the perception information; The speed measurement value change rate corresponding to the object to be measured is obtained based on the speed measurement value.

20. The sensing functional entity according to claim 17, characterized in that: The determining, based on the perception information, a measurement result of a target dual base station point corresponding to the object to be measured, includes: Determine the Doppler frequency shift corresponding to the object to be measured based on the sensing information; A Doppler frequency shift change rate corresponding to the object to be measured is obtained based on the Doppler frequency shift.

21. The sensing functional entity according to claim 17, characterized in that: The determining, based on the perception information, a measurement result of a target dual base station point corresponding to the object to be measured, includes: Determine the echo power corresponding to the object to be measured based on the sensing information; The echo power change rate corresponding to the object to be measured is obtained based on the echo power.

22. The sensing functional entity according to claim 13, characterized in that: The perception function entity is deployed at the transmitting end, the receiving end or the perception function entity is an independent entity.

23. The sensing functional entity according to claim 13, characterized in that: In the case where the sensing function entity is deployed at the transmitting end, the processor is further configured to read the computer program in the memory and perform the following operations: Triggering perceived business needs; The sensing signal is sent periodically.

24. The sensing functional entity according to claim 13, characterized in that: In the case where the perception function entity is deployed at the receiving end, the processor is further configured to read the computer program in the memory and perform the following operations: Receiving a sensed echo reflected by the object to be measured; Perception information is determined based on the perception echo.

25. A dual-base station selection device, characterized in that: include: A first determination module determines the positional relationship between the object to be measured and a plurality of target dual-base stations based on the sensing information; The target dual-base station is a dual-base station that can cover the object to be measured; The first selection module is used to select an optimal dual-base site from the multiple target dual-base sites based on the position relationship.

26. A non-transitory readable storage medium, characterized in that The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the dual-base site selection method according to any one of claims 1 to 12.

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