Sensing signal configuration method and apparatus, and electronic device

Abstract

The present disclosure provides a sensing signal configuration method and apparatus, and an electronic device, applied to the technical field of communications. The method comprises: acquiring a sensing requirement; when a sensing signal sending node and a sensing signal receiving node are in a cooperative sensing mode, determining a dual-period sensing signal parameter on the basis of the sensing requirement, the dual-period sensing signal parameter comprising a sensing signal parameter of a first period corresponding to a maximum unambiguous velocity requirement and a sensing signal parameter of a second period corresponding to a velocity resolution requirement; and on the basis of the dual-period sensing signal parameter, configuring a dual-period sensing signal resource for the sensing signal sending node.

Description

A sensing signal configuration method, apparatus and electronic device

[0001] Cross Reference to Related Applications

[0002] The present disclosure claims priority from Chinese Patent Application No. 202410948529.X filed on July 16, 2024 in China, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of communication, and particularly relates to a sensing signal configuration method, apparatus and electronic device. BACKGROUND

[0004] Communication and sensing integration is a key technology for the sixth generation (6G) mobile communication technology, including two working modes of independent sensing and cooperative sensing. In smart low-altitude, intelligent transportation and intelligent factory and other new businesses and new scenarios, it is very important to estimate the speed of a target using communication and sensing technology. By estimating the speed of the target, information such as the position, direction and moving track of the target can be obtained, which can further help target identification and safety control. When estimating the speed of the target, the speed resolution and the maximum unambiguous speed are two important indicators to ensure the accuracy of the speed estimation, wherein the speed resolution refers to the minimum speed that can distinguish two targets, and the maximum unambiguous speed represents the maximum value of the speed of the target that can be accurately measured.

[0005] In related technologies, for the speed measurement of the target, a large amount of symbol resources and a long observation time are often needed to achieve unambiguous and high-resolution speed measurement. In actual application, this not only increases the resource overhead of the sensing system, but also causes waste of network resources. SUMMARY

[0006] Embodiments of the present disclosure provide a sensing signal configuration method, apparatus and electronic device to solve the problem of large resource overhead of target speed measurement in related technologies.

[0007] To solve the above technical problems, the present disclosure is implemented as follows:

[0008] In a first aspect, the embodiments of the present disclosure provide a sensing signal configuration method, which comprises:

[0009] obtaining a sensing requirement, wherein the sensing requirement comprises a maximum unambiguous speed requirement and a speed resolution requirement;

[0010] In a case where the sensing signal sending node and the sensing signal receiving node are in a cooperative sensing mode, determining, based on the sensing requirement, double-period sensing signal parameters, the double-period sensing signal parameters including a first-period sensing signal parameter corresponding to the maximum unblurring speed requirement and a second-period sensing signal parameter corresponding to the speed resolution requirement;

[0011] Configuring, based on the double-period sensing signal parameters, double-period sensing signal resources for the sensing signal sending node.

[0012] Optionally, the first-period sensing signal parameter includes at least one of a first-period sensing symbol interval, a first-period total number of sensing symbols and a first-period time length; and / or

[0013] The second-period sensing signal parameter includes at least one of a second-period sensing symbol interval, a second-period total number of sensing symbols and a second-period time length.

[0014] Optionally, after the configuring, based on the double-period sensing signal parameters, double-period sensing signal resources for the sensing signal sending node, the method further includes:

[0015] Receiving, from the sensing signal receiving node, a clutter filtering mode and clutter filtering capability information corresponding to the clutter filtering mode;

[0016] Determining, according to the double-period sensing signal parameters, the clutter filtering mode and the clutter filtering capability information corresponding to the clutter filtering mode, single-period clutter filtering parameters;

[0017] Configuring, based on the single-period clutter filtering parameters, single-period clutter filtering resources for the sensing signal sending node.

[0018] Optionally, after the configuring, based on the single-period clutter filtering parameters, single-period clutter filtering resources for the sensing signal sending node, the method further includes:

[0019] Transmitting, to the sensing signal receiving node, the double-period sensing signal parameters and the single-period clutter filtering parameters.

[0020] Optionally, the single-period clutter filtering parameters include a time length of a clutter filtering period.

[0021] Optionally, an ending time of the first period is a starting time of the second period;

[0022] or

[0023] The starting time of the first period is the same as the starting time of the second period, and a time length of the first period is less than a time length of the second period.

[0024] Optionally, the ending moment of the first period is the starting moment of the second period.

[0025] The starting moment of the clutter filtering period is the starting moment of the first period, and the ending moment of the clutter filtering period is the ending moment of the last sensing period in M sensing periods, a time length of the sensing period including a time length of the first period and a time length of the second period, where M is a positive integer.

[0026] Optionally, the starting moment of the first period is the same as the starting moment of the second period.

[0027] The starting moment of the clutter filtering period is the starting moment of the second period, and the ending moment of the clutter filtering period is the ending moment of the last second period in K second periods, where K is a positive integer.

[0028] In a second aspect, the embodiments of the present disclosure further provide a sensing signal configuration device, which comprises:

[0029] A first obtaining module is configured to obtain a sensing requirement, the sensing requirement including a maximum unambiguous velocity requirement and a velocity resolution requirement.

[0030] A first determining module is configured to, in a case where a sensing signal sending node and a sensing signal receiving node are in a cooperative sensing mode, determine, based on the sensing requirement, a double-period sensing signal parameter, the double-period sensing signal parameter including a first-period sensing signal parameter corresponding to the maximum unambiguous velocity requirement and a second-period sensing signal parameter corresponding to the velocity resolution requirement.

[0031] A first configuration module is configured to, based on the double-period sensing signal parameter, configure a double-period sensing signal resource for the sensing signal sending node.

[0032] Optionally, the first-period sensing signal parameter includes at least one of a first-period sensing symbol interval, a first-period total number of sensing symbols, and a first-period time length; and / or

[0033] The second-period sensing signal parameter includes at least one of a second-period sensing symbol interval, a second-period total number of sensing symbols, and a second-period time length.

[0034] Optionally, the device further comprises:

[0035] A first receiving module is configured to receive a clutter filtering mode and clutter filtering capability information corresponding to the clutter filtering mode sent by the sensing signal receiving node.

[0036] The second determining module is configured to determine a single-period clutter filtering parameter according to the double-period sensing signal parameter, the clutter filtering mode, and the clutter filtering capability information corresponding to the clutter filtering mode.

[0037] The second configuring module is configured to configure a single-period clutter filtering resource for the sensing signal sending node based on the single-period clutter filtering parameter.

[0038] Optionally, the apparatus further includes:

[0039] The first sending module is configured to send the double-period sensing signal parameter and the single-period clutter filtering parameter to the sensing signal receiving node.

[0040] Optionally, the single-period clutter filtering parameter includes a time length of a clutter filtering period.

[0041] Optionally, an ending time of the first period is a starting time of the second period.

[0042] Or

[0043] The starting time of the first period is the same as the starting time of the second period, and a time length of the first period is less than a time length of the second period.

[0044] Optionally, an ending time of the first period is a starting time of the second period.

[0045] The starting time of the clutter filtering period is the starting time of the first period, and an ending time of the clutter filtering period is an ending time of a last sensing period in M sensing periods, a time length of the sensing period including a time length of the first period and a time length of the second period, wherein M is a positive integer.

[0046] Optionally, the starting time of the first period is the same as the starting time of the second period.

[0047] The starting time of the clutter filtering period is the starting time of the second period, and an ending time of the clutter filtering period is an ending time of a last second period in K second periods, wherein K is a positive integer.

[0048] In a third aspect, the embodiments of the present disclosure further provide an electronic device including a transceiver and a processor, and the processor is configured to:

[0049] Obtain a sensing requirement, the sensing requirement including a maximum unblurring speed requirement and a speed resolution requirement.

[0050] In a case where the sensing signal sending node and the sensing signal receiving node are in a cooperative sensing mode, determining, based on the sensing requirement, double-period sensing signal parameters, the double-period sensing signal parameters including a first-period sensing signal parameter corresponding to the maximum unblurring speed requirement and a second-period sensing signal parameter corresponding to the speed resolution requirement;

[0051] Configuring, based on the double-period sensing signal parameters, double-period sensing signal resources for the sensing signal sending node.

[0052] Optionally, the first-period sensing signal parameter includes at least one of a first-period sensing symbol interval, a first-period total number of sensing symbols, and a first-period time length; and / or

[0053] The second-period sensing signal parameter includes at least one of a second-period sensing symbol interval, a second-period total number of sensing symbols, and a second-period time length.

[0054] Optionally, the transceiver is configured to:

[0055] Receive a clutter filtering mode and clutter filtering capability information corresponding to the clutter filtering mode sent by the sensing signal receiving node;

[0056] The processor is further configured to:

[0057] Determine, according to the double-period sensing signal parameters, the clutter filtering mode, and the clutter filtering capability information corresponding to the clutter filtering mode, single-period clutter filtering parameters;

[0058] Configure, based on the single-period clutter filtering parameters, single-period clutter filtering resources for the sensing signal sending node.

[0059] Optionally, the transceiver is further configured to:

[0060] Send, to the sensing signal receiving node, the double-period sensing signal parameters and the single-period clutter filtering parameters.

[0061] Optionally, the single-period clutter filtering parameter includes a time length of a clutter filtering period.

[0062] Optionally, an ending time of the first period is a starting time of the second period;

[0063] Or

[0064] The starting time of the first period is the same as the starting time of the second period, and a time length of the first period is less than a time length of the second period.

[0065] Optionally, the end time of the first period is the start time of the second period.

[0066] The start time of the clutter filtering period is the start time of the first period, and the end time of the clutter filtering period is the end time of the last sensing period in the M sensing periods, the time length of the sensing period including the time length of the first period and the time length of the second period, wherein M is a positive integer.

[0067] Optionally, the start time of the first period is the same as the start time of the second period.

[0068] The start time of the clutter filtering period is the start time of the second period, and the end time of the clutter filtering period is the end time of the last second period in the K second periods, wherein K is a positive integer.

[0069] In a fourth aspect, the embodiments of the present disclosure further provide an electronic device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the sensing signal configuration method described above are implemented.

[0070] In a fifth aspect, the embodiments of the present disclosure further provide a computer readable storage medium, and the computer readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the sensing signal configuration method described above are implemented.

[0071] In a sixth aspect, a computer program product is provided, including computer instructions, and when the computer instructions are executed by a processor, the steps of the sensing signal configuration method described in the first aspect are implemented.

[0072] The sensing signal configuration method of the embodiments of the present disclosure includes obtaining a sensing requirement, the sensing requirement including a maximum unambiguous speed requirement and a speed resolution requirement; in the case that a sensing signal sending node and a sensing signal receiving node are in a cooperative sensing mode, determining a double-period sensing signal parameter based on the sensing requirement, the double-period sensing signal parameter including a first-period sensing signal parameter corresponding to the maximum unambiguous speed requirement and a second-period sensing signal parameter corresponding to the speed resolution requirement; and configuring a double-period sensing signal resource for the sensing signal sending node based on the double-period sensing signal parameter. In this method, the sensing signal sending node or a server configures a double-period sensing signal resource according to a sensing requirement, uses a first-period sensing signal resource to guarantee a maximum unambiguous speed, and uses a second-period sensing signal resource to improve a speed resolution, so that in the entire sensing period, the sensing resource expenditure can be reduced on the basis of guaranteeing the accuracy of target speed measurement. BRIEF DESCRIPTION OF DRAWINGS

[0073] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0074] FIG. 1 is a schematic diagram of a sensing signal transmission provided by an embodiment of the present disclosure;

[0075] FIG. 2 is a flowchart of a sensing signal configuration method provided by an embodiment of the present disclosure;

[0076] FIG. 3 is a schematic diagram of a sensing signal parameter provided by an embodiment of the present disclosure;

[0077] FIG. 4 is a schematic diagram of an MTI technology provided by an embodiment of the present disclosure;

[0078] FIG. 5 is a schematic diagram of clutter suppression capability information corresponding to the MTI technology provided by an embodiment of the present disclosure;

[0079] FIG. 6 is a schematic diagram of a double-period sensing signal parameter provided by an embodiment of the present disclosure;

[0080] FIG. 7 is a schematic diagram of a double-period sensing signal parameter provided by an embodiment of the present disclosure;

[0081] FIG. 8(a) is a schematic diagram of a first-period FFT result provided by an embodiment of the present disclosure;

[0082] FIG. 8(b) is a schematic diagram of a second-period FFT result provided by an embodiment of the present disclosure;

[0083] FIG. 9(a) is a schematic diagram of a first-period FFT result provided by an embodiment of the present disclosure;

[0084] FIG. 9(b) is a schematic diagram of a second-period FFT result provided by an embodiment of the present disclosure;

[0085] FIG. 10(a) is a schematic diagram of a first-period FFT result provided by an embodiment of the present disclosure;

[0086] FIG. 10(b) is a schematic diagram of a second-period FFT result provided by an embodiment of the present disclosure;

[0087] FIG. 11 is a schematic diagram of a clutter filtering period provided by an embodiment of the present disclosure;

[0088] FIG. 12(a) is a schematic diagram of a first-period FFT result provided by an embodiment of the present disclosure;

[0089] Fig. 12(b) is a schematic diagram of the second periodic FFT result according to an embodiment of the present disclosure;

[0090] Fig. 13(a) is a schematic diagram of the first periodic FFT result according to an embodiment of the present disclosure;

[0091] Fig. 13(b) is a schematic diagram of the second periodic FFT result according to an embodiment of the present disclosure;

[0092] Fig. 14 is a structural diagram of a sensing signal configuration device according to an embodiment of the present disclosure;

[0093] Fig. 15 is a structural diagram of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0094] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

[0095] In order to further understand the embodiments of the present disclosure, first, the related technical knowledge involved in the present disclosure will be explained and described:

[0096] When estimating the speed of a target, the speed resolution and the maximum unambiguous speed are two important indicators to ensure the accuracy of speed estimation. The speed resolution refers to the minimum speed that can distinguish two targets, and the maximum unambiguous speed represents the maximum value of the speed of the target that can be accurately measured. If the speed of the target exceeds the maximum unambiguous speed, the radar will have a speed ambiguity phenomenon, that is, it cannot accurately measure the real speed of the target. Referring to Fig. 1, the phase difference between two consecutive sensing symbols is represented as:

[0097] When the phase measurement is unambiguous, that is, The maximum unambiguous speed is obtained as Suppose that N sensing symbols are transmitted in one period, and the frequency resolution in the speed dimension is 2π / N. Then the speed resolution is Therefore, the maximum unambiguous speed is related to the interval of two sensing symbols, and the speed resolution is related to the total time length of the transmitted sensing symbols.

[0098] In a mobile network, the accurate velocity measurement of a target such as a UAV by a base station is of great importance. However, in an actual detection process, the echo signal not only carries the information of the target, but also mixes a large amount of scattered echoes from objects such as the earth and the environment, which are called clutters. The intensity of such clutters often far exceeds the sensing signal, and the existence of the clutters seriously interferes with the detection ability of the base station to the target, and thus reduces the accuracy of the velocity measurement. Therefore, clutter suppression is also very important in improving the accuracy of target velocity measurement.

[0099] Therefore, in the case that the sensing signal sending node and the sensing signal receiving node are in a cooperative sensing mode, in order to accurately measure the velocity of the target, on the one hand, the sensing symbol interval needs to be reduced and the sensing period needs to be lengthened, and on the other hand, the clutters need to be filtered out.

[0100] In the related art, for the velocity measurement of the target, a large amount of symbol resources and a long time of observation are often needed to achieve unambiguous and high-resolution velocity measurement. In actual application, this not only increases the resource overhead of the sensing system, but also causes waste of network resources. In order to solve the technical problem:

[0101] The embodiment of the present disclosure provides a sensing signal configuration method. Referring to FIG. 2, FIG. 2 is a flowchart of the sensing signal configuration method provided by the embodiment of the present disclosure, as shown in FIG. 2, the method comprises the following steps:

[0102] Step 201, obtaining a sensing requirement, the sensing requirement comprising a maximum unambiguous velocity requirement and a velocity resolution requirement;

[0103] In the communication-sensing integration, for different scenarios, the sensing requirement is different, and therefore the maximum unambiguous velocity requirement and the velocity resolution requirement are different. Exemplarily, for an air-to-surface monitoring UAV scenario, v max = 10 m / s, and Δv = 0.5 m / s; for a ground-to-surface monitoring vehicle scenario, v max = 40 m / s, and Δv = 0.5 m / s.

[0104] The server configures the maximum unambiguous velocity requirement and the velocity resolution requirement according to the sensing requirement of the application scenario. The execution subject of the present disclosure can be a sensing signal sending node or a server. In the case that the execution subject is the sensing signal sending node, the sensing signal sending node needs to obtain the sensing requirement from the server.

[0105] Step 202, in the case that the sensing signal sending node and the sensing signal receiving node are in a cooperative sensing mode, determining a double-period sensing signal parameter based on the sensing requirement, the double-period sensing signal parameter comprising a sensing signal parameter of a first period corresponding to the maximum unambiguous velocity requirement and a sensing signal parameter of a second period corresponding to the velocity resolution requirement.

[0106] In this step, in the case that the perception signal sending node and the perception signal receiving node are in the cooperative perception mode, the perception signal sending node or the server determines the double-period perception signal parameters according to the perception requirement. Specifically, the perception signal parameters of the first period are mainly used to ensure the maximum unambiguous speed, which can include appropriate perception symbol interval and total number of perception symbols, to ensure that the speed can be accurately measured under a high-speed target; the perception signal parameters of the second period are mainly used to improve the speed resolution, which can include appropriate total number of perception symbols or length of the perception period, to improve the accuracy of speed measurement.

[0107] In step 203, the double-period perception signal resources are configured for the perception signal sending node based on the double-period perception signal parameters.

[0108] In this step, the server configures the perception signal resources of the first period and the perception signal resources of the second period for the perception signal sending node based on the perception signal parameters of the first period and the perception signal parameters of the second period, or the perception signal sending node configures the perception signal resources of the first period and the perception signal resources of the second period based on the perception signal parameters of the first period and the perception signal parameters of the second period. The perception signal resources can include time domain resources, spectrum resources, etc.

[0109] In the mobile network, the perception as a new function of communication must be carried out on the premise of guaranteeing the communication quality, but all resources cannot be used for perception, so it is necessary to realize the speed measurement under the limited resources. In an embodiment, the perception signal sending node or the server configures the double-period perception signal resources according to the perception requirement, uses the perception signal resources of the first period to ensure the maximum unambiguous speed, and uses the perception signal resources of the second period to improve the speed resolution, so that the overhead of the perception resources can be reduced on the basis of guaranteeing the accuracy of the target speed measurement in the whole perception period.

[0110] Optionally, the perception signal parameters of the first period include at least one of the perception symbol interval of the first period, the total number of perception symbols of the first period, and the length of the first period; and / or

[0111] The perception signal parameters of the second period include at least one of the perception symbol interval of the second period, the total number of perception symbols of the second period, and the length of the second period.

[0112] In an embodiment, referring to FIG. 3, mode one can embody the setting of the perception signal parameters in the prior art. In the whole perception period, the perception symbol interval is T C , the total number of perception symbols is N, and the length of the perception period is NT CThe mode 2 can reflect the setting of the double-period sensing signal parameters in the present disclosure. In the whole sensing period, the sensing signal parameters of the first period are: the sensing symbol interval is T C , the total number of sensing symbols is N1, and the sensing period length is N1T C ; the sensing signal parameters of the second period are: the sensing symbol interval is N1T C , the total number of sensing symbols is N2, and the sensing period length is N2N1T C . Therefore, in the whole sensing period, not only the performance of the maximum unambiguous velocity of can be obtained, but also the velocity resolution of

[0113] In this embodiment, the subsequent sensing signal resource is configured by the sensing signal parameters of the first period and the sensing signal parameters of the second period, which can not only ensure the accuracy of the target velocity measurement, but also effectively control the sensing resource overhead.

[0114] Optionally, after the double-period sensing signal resource is configured for the sensing signal sending node based on the double-period sensing resource configuration information, the method further comprises:

[0115] receiving the clutter filtering mode and the clutter filtering capability information corresponding to the clutter filtering mode sent by the sensing signal receiving node;

[0116] determining the single-period clutter filtering parameter according to the double-period sensing signal parameters, the clutter filtering mode and the clutter filtering capability information corresponding to the clutter filtering mode;

[0117] configuring the single-period clutter filtering resource for the sensing signal sending node based on the single-period clutter filtering parameter.

[0118] In an embodiment, in the case that the sensing signal sending node and the sensing signal receiving node are in the cooperative sensing mode, in order to accurately measure the velocity of the target, on the one hand, the sensing symbol interval needs to be reduced and the sensing period needs to be lengthened, and on the other hand, the clutter needs to be filtered. The server or the sensing signal sending node will receive the clutter filtering mode and the clutter filtering capability information corresponding to the clutter filtering mode sent by the sensing signal receiving node.

[0119] The clutter filtering methods include a variety of methods. Referring to FIG. 4, the Moving Target Indicator (MTI) technology is a commonly used clutter suppression algorithm, which utilizes the difference in Doppler frequency between the clutter and the moving target, subtracts the adjacent two sensing symbols, eliminates the clutter with the same phase value, and highlights the characteristics of the moving target. This method can effectively eliminate the static target clutter and improve the detection ability of the moving target. In addition, the Moving Target Detection (MTD) technology is also an important means of clutter filtering. The MTD can significantly improve the detection ability of the moving target in a complex background by utilizing the Doppler filter or the Fourier transform to accurately suppress the clutter.

[0120] Each clutter filtering method corresponds to a variety of clutter filtering capability information. Referring to FIG. 5, for the MTI algorithm, the clutter filtering capability information at least includes the following three methods:

[0121] Average: taking the average of the first few sensing symbols as the reference sensing symbol, and subtracting the reference sensing symbol from all sensing symbols in the period to suppress the clutter;

[0122] Subtract the previous one: subtracting the previous sensing symbol from the current sensing symbol in the period to suppress the clutter;

[0123] Subtract the first one: subtracting the first sensing symbol from all sensing symbols in the period to suppress the clutter.

[0124] In the sensing speed measurement requirement, the sensing signal needs to be configured with multiple sensing symbols, and the clutter filtering needs to rely on multiple sensing symbols for clutter filtering or needs multiple sensing symbols to jointly design the Doppler filter for moving target detection. In the existing sensing signal design, the sensing signal is not designed in combination with the clutter filtering. In the present disclosure, the single-period clutter filtering parameter is determined in combination with the double-period sensing signal parameter, the clutter filtering method, and the clutter filtering capability information corresponding to the clutter filtering method. The single-period clutter filtering parameter mainly includes the time length of the clutter filtering period, and the time length of the clutter filtering period includes the time length of the first period and the time length of the second period.

[0125] In this implementation, the single-period clutter suppression parameter is determined based on the double-period sensing signal parameter, and in the process of transmitting the sensing signal, the accuracy of target speed measurement can be further improved through clutter suppression.

[0126] Optionally, after the single-period clutter filtering resource is configured for the sensing signal sending node based on the single-period clutter filtering parameter, the method further includes:

[0127] The double-period sensing signal parameters and the single-period clutter filtering parameters are sent to the sensing signal receiving node.

[0128] In an embodiment, the sensing signal sending node or server sends the double-period sensing signal parameters and the single-period clutter filtering parameters to the sensing signal receiving node, so that the sensing signal receiving node receives the sensing signal based on the double-period sensing signal parameters and the single-period clutter filtering parameters. The double-period sensing signal parameters mainly include the sensing symbol interval of the first period, the total number of sensing symbols of the first period, the time length of the first period, the sensing symbol interval of the second period, the total number of sensing symbols of the second period, and the time length of the second period. The single-period clutter filtering parameters mainly include the time length of the clutter filtering period.

[0129] Optionally, the single-period clutter filtering parameters include the time length of the clutter filtering period.

[0130] In an embodiment, the single-period clutter filtering parameters mainly include the time length of the clutter filtering period, and the time length of the clutter filtering period includes the time length of the first period and the time length of the second period. The clutter suppression is beneficial to further improve the accuracy of target speed measurement.

[0131] Optionally, the end time of the first period is the start time of the second period.

[0132] Or

[0133] The start time of the first period is the same as the start time of the second period, and the time length of the first period is less than the time length of the second period.

[0134] In an embodiment, the first period is P1, and the second period is P2. The first period and the second period can be set as follows:

[0135] In a first mode, the end time of the first period is the start time of the second period, as shown in FIG. 6. The maximum unambiguous speed requirement is v max The first period P1 has a short duration, but the sensing symbols are densely configured with a sensing symbol interval of T1 = λ / 4v max , including N1 sensing symbols. At this time, the maximum unambiguous speed The speed resolution is The speed resolution requirement is Δv. The second period P2 has a long duration, but the sensing symbols are sparsely configured with a sensing symbol interval of T2 = N1T1, including N2 sensing symbols (N2 = P2 / T2). At this time, the maximum unambiguous speed The speed resolution is The whole sensing period of the prior art includes N sensing symbols, and the whole sensing period now includes N1+N2 sensing symbols, where N=N1N2.

[0136] The second way is that the starting time of the first period is the same as the starting time of the second period, as shown in FIG. 7, and the maximum unambiguous velocity requirement is v max The first period P1 is short in duration, but the sensing symbols are densely configured, and the sensing symbol interval is T1=λ / 4v max , and the maximum unambiguous velocity The velocity resolution is The velocity resolution requirement is Δv, the second period P2 is long in duration, but the sensing symbols are sparsely configured, and the sensing symbol interval is T2=N1T1, including N2 sensing symbols (N2=P2 / T2), and the maximum unambiguous velocity The velocity resolution is The whole sensing period of the prior art includes N sensing symbols, and the whole sensing period now includes N1+N2-1 sensing symbols, where N=N1N2.

[0137] It can be verified through simulation experiments that the sensing signal resource configuration based on the above double-period sensing signal parameters can reduce the resource overhead under the premise of ensuring the accuracy of target velocity measurement:

[0138] Suppose the maximum unambiguous velocity v max = 57.7 m / s, and Δv = 0.48 m / s:

[0139] Referring to FIG. 8(a) the Fast Fourier Transformation (FFT) result of the first period and FIG. 8(b) the FFT result of the second period, if T2=N1T1;

[0140] f c = 2.6 GHz, T1=0.5 ms, N1=6, P1=3 ms, T2=3 ms, N2=40, and P2=120 ms;

[0141] Suppose the actual target velocity v = 24 m / s;

[0142] The experimental target velocity v esti = (2-1)*19.2308+(11-1)*0.4808 = 24.04 m / s.

[0143] Referring to FIG. 9(a) the FFT result of the first period and FIG. 9(b) the FFT result of the second period, if T2<N1T1 (this case wastes resources);

[0144] fc = 2.6GHz, T1 = 0.5ms, N1 = 6, P1 = 3ms, T2 = 2ms, N2 = 60, P2 = 120ms;

[0145] Suppose the actual target speed v = 24m / s, the first cycle is about 19m / s; the maximum unambiguous speed of the second cycle is 14.4231m / s.

[0146] Experimental target speed v esti = 14.4231*2-4.8077 = 24.04m / s;

[0147] Referring to the first cycle FFT result of Fig. 10(a) and the second cycle FFT result of Fig. 10(b), if T2 > N1T1 (this case will lead to target speed ambiguity, and multiple close values will appear);

[0148] f c = 2.6GHz, T1 = 0.5ms, N1 = 6, P1 = 3ms, T2 = 6ms, N2 = 20, P2 = 120ms;

[0149] Suppose the actual target speed v = 24m / s, the first cycle is about 19m / s;

[0150] Experimental target speed v esti1 = 4.8077*2*2-4.8077 = 14.42m / s;

[0151] Experimental target speed v esti2 = 4.8077*2*3-4.8077 = 24.04m / s. At this time, there are two speed estimation values, and the target speed value cannot be directly determined.

[0152] Therefore, through the above simulation experiment, it can be seen that the sensing signal resource configuration based on the double-cycle sensing signal parameters in the present disclosure can reduce the resource overhead under the premise of ensuring the accuracy of target speed measurement.

[0153] Optionally, an ending moment of the first cycle is a starting moment of the second cycle.

[0154] A starting moment of the clutter filtering cycle is a starting moment of the first cycle, and an ending moment of the clutter filtering cycle is an ending moment of a last sensing cycle in M sensing cycles, and a time length of the sensing cycle includes a time length of the first cycle and a time length of the second cycle, where M is a positive integer.

[0155] In an embodiment, when the first period P1 and the second period P2 are set in the manner of FIG. 6, the length of the sensing period can be equal to (P1+P2), and the length of the sensing period can also be greater than (P1+P2). Preferably, in the case where the length of the sensing period is equal to (P1+P2), the setting of the length of the clutter filtering period can refer to FIG. 11, that is, the clutter filtering period = M(P1+P2), in which case the resources consumed by clutter filtering are less. It should be noted that the value of M is different for different clutter filtering manners. In the case of MTI, the value of M is relatively small, mainly because the clutter needs to change as little as possible within the clutter suppression period. In the case of MTD, the value of M can be relatively large, for energy accumulation and moving target detection.

[0156] Optionally, the starting time of the first period is the same as the starting time of the second period.

[0157] The starting time of the clutter filtering period is the starting time of the second period, and the ending time of the clutter filtering period is the ending time of the last second period in the K second periods, where K is a positive integer.

[0158] In an embodiment, when the first period P1 and the second period P2 are set in the manner of FIG. 7, the clutter filtering period = KP2. It should be noted that the value of K is different for different clutter filtering manners. In the case of MTI, the value of K is relatively small, mainly because the clutter needs to change as little as possible within the clutter suppression period. In the case of MTD, the value of K can be relatively large, for energy accumulation and moving target detection.

[0159] To further illustrate the technical effects produced by the technical means of the present disclosure, the process of the sensing signal configuration method of the present disclosure is further illustrated by the following two embodiments:

[0160] Embodiment one:

[0161] Step 1: The control node or server configures the maximum unambiguous speed requirement and the speed resolution requirement according to the sensing requirements of the application scenario.

[0162] Step 2: The sensing signal receiving node sends the clutter filtering manner and the clutter filtering capability information corresponding to the clutter filtering manner to the sensing signal sending node or server. The clutter filtering manner here can be the MTI algorithm, and the corresponding clutter filtering capability information can be the manner (3) in FIG. 5.

[0163] Step 3: The sensing signal sending node obtains the sensing requirement from the control node or server, determines the double-period sensing signal parameters and the single-period clutter filtering parameters, and the configuration mode can refer to FIG. 6 and FIG. 11, wherein the single-period clutter filtering parameters are configured as P1+P2 (M=1) ;

[0164] Let v max = 57.7 m / s, Δv = 0.48 m / s;

[0165] The calculated sensing signal parameters are: f c = 2.6 GHz, T1 = 0.5 ms, N1 = 6, P1 = 3 ms, T2 = 3 ms, N2 = 40, P2 = 120 ms;

[0166] Let the actual target speed v = 47 m / s;

[0167] The experimental target speed v esti = 38.4615 + 8.6339 = 47.1154 m / s.

[0168] Referring to FIG. 12(a) and FIG. 12(b), which are the results of FFT according to the double-period sensing signal parameters.

[0169] Step 4: The sensing signal sending node sends the double-period sensing signal parameters and the single-period clutter filtering parameters to the sensing signal receiving node, so that the sensing signal sending node and the sensing signal receiving node perform the sending and receiving of the sensing signal according to the unified parameter configuration.

[0170] Embodiment Two:

[0171] Step 1: The control node or server configures the maximum unambiguous speed requirement and the speed resolution requirement according to the sensing requirement of the application scenario;

[0172] Step 2: The sensing signal receiving node sends the clutter filtering mode and the clutter filtering capability information corresponding to the clutter filtering mode to the sensing signal sending node or the server, and the clutter filtering mode here can be the MTD algorithm;

[0173] Step 3: The sensing signal sending node obtains the sensing requirement from the control node or server, determines the double-period sensing signal parameters and the single-period clutter filtering parameters, and the configuration mode can refer to FIG. 6, wherein the single-period clutter filtering parameters are configured as 2P2 (K=2) ;

[0174] Let v max = 28.85 m / s, Δv = 0.96 m / s;

[0175] The calculated sensing signal parameters are: f c= 2.6 GHz, T1 = 1 ms, N1 = 6, P1 = 6 ms, T2 = 6 ms, N2 = 10, P2 = 60 ms;

[0176] Suppose the actual target speed v = 16 m / s;

[0177] Experimental target speed v esti = 19.2308 - 2.8846 = 16.35 m / s.

[0178] Referring to FIGS. 13(a) and 13(b), which are results of FFT according to the double-period sensing signal parameters.

[0179] Step 4: The sensing signal sending node sends the double-period sensing signal parameters and the single-period clutter filtering parameters to the sensing signal receiving node, so that the sensing signal sending node and the sensing signal receiving node perform sensing signal sending and receiving according to unified parameters.

[0180] Referring to FIG. 14, which is a structural diagram of a sensing signal configuration apparatus provided by an embodiment of the present disclosure, as shown in FIG. 14, the sensing signal configuration apparatus 1400 includes:

[0181] A first obtaining module 1401 is configured to obtain sensing requirements, the sensing requirements including a maximum unambiguous speed requirement and a speed resolution requirement.

[0182] A first determining module 1402 is configured to, in a case where the sensing signal sending node and the sensing signal receiving node are in a cooperative sensing mode, determine double-period sensing signal parameters based on the sensing requirements, the double-period sensing signal parameters including a first-period sensing signal parameter corresponding to the maximum unambiguous speed requirement and a second-period sensing signal parameter corresponding to the speed resolution requirement.

[0183] A first configuring module 1403 is configured to configure double-period sensing signal resources for the sensing signal sending node based on the double-period sensing signal parameters.

[0184] Optionally, the first-period sensing signal parameter includes at least one of a first-period sensing symbol interval, a first-period total number of sensing symbols, and a first-period time length; and / or

[0185] The second-period sensing signal parameter includes at least one of a second-period sensing symbol interval, a second-period total number of sensing symbols, and a second-period time length.

[0186] Optionally, the apparatus further includes:

[0187] The first receiving module is configured to receive the clutter filtering mode and the clutter filtering capability information corresponding to the clutter filtering mode sent by the sensing signal receiving node.

[0188] The second determining module is configured to determine a single-period clutter filtering parameter according to the double-period sensing signal parameter, the clutter filtering mode and the clutter filtering capability information corresponding to the clutter filtering mode.

[0189] The second configuring module is configured to configure a single-period clutter filtering resource for the sensing signal sending node based on the single-period clutter filtering parameter.

[0190] Optionally, the apparatus further comprises:

[0191] The first sending module is configured to send the double-period sensing signal parameter and the single-period clutter filtering parameter to the sensing signal receiving node.

[0192] Optionally, the single-period clutter filtering parameter comprises a time length of the clutter filtering period.

[0193] Optionally, an ending time of the first period is a starting time of the second period.

[0194] Or

[0195] The starting time of the first period is the same as the starting time of the second period, and a time length of the first period is less than a time length of the second period.

[0196] Optionally, an ending time of the first period is a starting time of the second period.

[0197] The starting time of the clutter filtering period is the starting time of the first period, and an ending time of the clutter filtering period is an ending time of a last sensing period in M sensing periods, and a time length of the sensing period comprises a time length of the first period and a time length of the second period, wherein M is a positive integer.

[0198] Optionally, the starting time of the first period is the same as the starting time of the second period.

[0199] The starting time of the clutter filtering period is the starting time of the second period, and an ending time of the clutter filtering period is an ending time of a last second period in K second periods, wherein K is a positive integer.

[0200] It should be noted that the embodiment is an embodiment of the device side corresponding to FIG. 2, and the specific implementation can refer to the related description of the embodiment shown in FIG. 2. In order to avoid repeated description, the embodiment will not be described again, and the same beneficial effects can be achieved.

[0201] The embodiment of the present disclosure further provides an electronic device, comprising a processor, a memory, and a program stored in the memory and executable on the processor, when the program is executed by the processor, each process of the above-mentioned embodiment of the method for configuring a sensing signal applied to an electronic device is implemented, and the same technical effects can be achieved. To avoid repetition, details are not described here.

[0202] Specifically, referring to FIG. 15, the embodiment of the present disclosure further provides an electronic device, comprising a bus 1501, a transceiver 1502, an antenna 1503, a bus interface 1504, a processor 1505 and a memory 1506.

[0203] The processor 1505 is configured to:

[0204] obtain a sensing requirement, the sensing requirement comprising a maximum unambiguous velocity requirement and a velocity resolution requirement;

[0205] In a case where the sensing signal sending node and the sensing signal receiving node are in a cooperative sensing mode, determine a double-period sensing signal parameter based on the sensing requirement, the double-period sensing signal parameter comprising a first-period sensing signal parameter corresponding to the maximum unambiguous velocity requirement and a second-period sensing signal parameter corresponding to the velocity resolution requirement;

[0206] Configure a double-period sensing signal resource for the sensing signal sending node based on the double-period sensing signal parameter.

[0207] Optionally, the first-period sensing signal parameter comprises at least one of a first-period sensing symbol interval, a first-period total number of sensing symbols and a first-period time length; and / or

[0208] The second-period sensing signal parameter comprises at least one of a second-period sensing symbol interval, a second-period total number of sensing symbols and a second-period time length.

[0209] Optionally, the transceiver 1502 is configured to:

[0210] receive a clutter filtering mode and clutter filtering capability information corresponding to the clutter filtering mode sent by the sensing signal receiving node;

[0211] The processor 1505 is further configured to:

[0212] determine a single-period clutter filtering parameter according to the double-period sensing signal parameter, the clutter filtering mode and the clutter filtering capability information corresponding to the clutter filtering mode;

[0213] The single-period clutter filtering parameter is configured for the sensing signal sending node based on the single-period clutter filtering parameter.

[0214] Optionally, the transceiver 1502 is further configured to:

[0215] The double-period sensing signal parameter and the single-period clutter filtering parameter are sent to the sensing signal receiving node.

[0216] Optionally, the single-period clutter filtering parameter comprises a time length of a clutter filtering period.

[0217] Optionally, an ending time of the first period is a starting time of the second period.

[0218] Or

[0219] The starting time of the first period is the same as the starting time of the second period, and a time length of the first period is less than a time length of the second period.

[0220] Optionally, an ending time of the first period is a starting time of the second period.

[0221] The starting time of the first period is the same as the starting time of the second period, and a time length of the first period is less than a time length of the second period.

[0222] Optionally, the starting time of the first period is the same as the starting time of the second period.

[0223] The starting time of the first period is the same as the starting time of the second period, and a time length of the first period is less than a time length of the second period.

[0224] In FIG. 15, a bus architecture (represented by bus 1501) can include any number of interconnecting buses and bridges, the bus 1501 linking together various circuits such as one or more processors represented by processor 1505, and memory represented by memory 1506. The bus 1501 can also link together various other circuits which are well known in the art, including peripheral devices, voltage regulators and power management circuits, but are not further described herein. Bus interface 1504 provides an interface between the bus 1501 and transceiver 1502. The transceiver 1502 can be a single element or multiple elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. Data processed by the processor 1505 is transmitted over a wireless medium via antenna 1503, which further receives data and communicates the data to the processor 1505.

[0225] The processor 1505 is responsible for managing the bus 1501 and general processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 1506 can be used to store data used by the processor 1505 in executing its operations.

[0226] Optionally, the processor 1505 can 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).

[0227] The embodiments of the present disclosure further provide a computer readable storage medium, and the computer readable storage medium stores a computer program. The computer program is executed by a processor to implement each process of the above-mentioned sensing signal configuration method embodiments, and can achieve the same technical effects. To avoid repetition, details are not described herein. The computer readable storage medium can be, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0228] The embodiments of the present disclosure further provide a computer program product, which includes computer instructions. The computer instructions are executed by a processor to implement each process of the above-mentioned method embodiment shown in FIG. 2, and can achieve the same technical effects. To avoid repetition, details are not described herein.

[0229] It should be noted that, in the present document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not limited to those elements, but can also include other elements not expressly listed, or inherent to such processes, methods, articles, or apparatuses. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0230] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned method of the embodiments can be realized by means of software and a necessary general hardware platform, and of course, it can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present disclosure can be embodied in the form of a software product in essence or in the form of a part of the prior art that contributes to the present disclosure. The computer software product is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disk), and includes a plurality of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in each embodiment of the present disclosure.

[0231] The embodiments of the present disclosure are described above in combination with the drawings, but the present disclosure is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present disclosure without departing from the scope of the present disclosure and the scope of protection of the claims.

Claims

1. A method for configuring a sensing signal, the method comprising: obtaining sensing requirements, the sensing requirements comprising a maximum unambiguous velocity requirement and a velocity resolution requirement; in a case where a sensing signal transmitting node and a sensing signal receiving node are in a cooperative sensing mode, determining, based on the sensing requirements, dual-period sensing signal parameters, the dual-period sensing signal parameters comprising a first-period sensing signal parameter corresponding to the maximum unambiguous velocity requirement and a second-period sensing signal parameter corresponding to the velocity resolution requirement; configuring, based on the dual-period sensing signal parameters, dual-period sensing signal resources for the sensing signal transmitting node.

2. The method of claim 1, wherein, the first-period sensing signal parameter comprises at least one of a first-period sensing symbol interval, a first-period sensing symbol total number, and a first-period time length; and / or the second-period sensing signal parameter comprises at least one of a second-period sensing symbol interval, a second-period sensing symbol total number, and a second-period time length.

3. The method of claim 1, wherein, after the configuring, based on the dual-period sensing signal parameters, dual-period sensing signal resources for the sensing signal transmitting node, the method further comprises: receiving, from the sensing signal receiving node, a clutter filtering mode and clutter filtering capability information corresponding to the clutter filtering mode; determining, based on the dual-period sensing signal parameters, the clutter filtering mode, and the clutter filtering capability information corresponding to the clutter filtering mode, a single-period clutter filtering parameter; configuring, based on the single-period clutter filtering parameter, single-period clutter filtering resources for the sensing signal transmitting node.

4. The method of claim 3, wherein, after the configuring, based on the single-period clutter filtering parameter, single-period clutter filtering resources for the sensing signal transmitting node, the method further comprises: transmitting, to the sensing signal receiving node, the dual-period sensing signal parameters and the single-period clutter filtering parameter.

5. The method of claim 3, wherein, the single-period clutter filtering parameter comprises a time length of a clutter filtering period.

6. The sensing signal configuration method of claim 1 or 2, wherein, an end time of the first period is a start time of the second period; or a start time of the first period is the same as a start time of the second period, and a time length of the first period is less than a time length of the second period.

7. The method of claim 5, wherein, an end time of the first period is a start time of the second period; a start time of the clutter filtering period is a start time of the first period, and an end time of the clutter filtering period is an end time of a last sensing period in M sensing periods, a time length of the sensing period comprising a time length of the first period and a time length of the second period, where M is a positive integer.

8. The method of claim 5, wherein, a start time of the first period is the same as a start time of the second period; a start time of the clutter filtering period is a start time of the second period, and an end time of the clutter filtering period is an end time of a last second period in K second periods, where K is a positive integer.

9. An apparatus for configuring a sensing signal, the apparatus comprising: a first obtaining module configured to obtain sensing requirements, the sensing requirements comprising a maximum unambiguous velocity requirement and a velocity resolution requirement; The first determining module is configured to determine, in a case where the sensing signal sending node and the sensing signal receiving node are in the cooperative sensing mode, a double-period sensing signal parameter based on the sensing requirement, the double-period sensing signal parameter including a first-period sensing signal parameter corresponding to the maximum unambiguous velocity requirement and a second-period sensing signal parameter corresponding to the velocity resolution requirement. The first configuring module is configured to configure, based on the double-period sensing signal parameter, a double-period sensing signal resource for the sensing signal sending node. 10.An electronic device, comprising a transceiver and a processor, the processor being configured to: obtain a sensing requirement, the sensing requirement including a maximum unambiguous velocity requirement and a velocity resolution requirement; determine, in a case where a sensing signal sending node and a sensing signal receiving node are in a cooperative sensing mode, a double-period sensing signal parameter based on the sensing requirement, the double-period sensing signal parameter including a first-period sensing signal parameter corresponding to the maximum unambiguous velocity requirement and a second-period sensing signal parameter corresponding to the velocity resolution requirement; configure, based on the double-period sensing signal parameter, a double-period sensing signal resource for the sensing signal sending node. 11.An electronic device, comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being configured to implement the steps of the sensing signal configuration method according to any one of claims 1 to 8 when executed by the processor. 12.A computer readable storage medium, having stored thereon a computer program, the computer program being configured to implement the steps of the sensing signal configuration method according to any one of claims 1 to 8 when executed by a processor. 13.A computer program product, comprising computer instructions, the computer instructions being configured to implement the steps of the sensing signal configuration method according to any one of claims 1 to 8 when executed by a processor.

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