Multi-input multi-output antenna configuration method, server, sensing device and medium

Abstract

The invention provides a multiple-input-multiple-output antenna configuration method, a server, a sensing device and a medium, the multiple-input-multiple-output antenna configuration method comprises the steps that the server receives an echo signal sent by the sensing device, and the echo signal is a signal which is received by the sensing device after the sensing device emits a sensing signal and is formed by reflecting the sensing signal by a sensing target; the server processes the echo signal and determines the sensing angle resolutions of the multiple-input-multiple-output antenna array of the sensing equipment in the horizontal direction and the vertical direction according to the processing result; the server determines antenna configuration parameters of a transmitting end and a receiving end of the sensing equipment according to the sensing angle resolutions in the horizontal direction and the vertical direction; and the server sends the antenna configuration parameters of the transmitting end and the receiving end to the sensing equipment. According to the sensing angle resolution requirement, part of antennas in the vertical and horizontal directions of the transmitting end and the receiving end are selected and activated, and the overhead is reduced on the premise that the sensing angle resolution is met.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of wireless communication technologies, and in particular, to a multiple-input multiple-output antenna configuration method, a server, a sensing device, and a medium. Background Art

[0002] Communication-sensing integration is one of the potential key technologies for 6G. As a new type of integrated technology, communication-sensing integration aims to share the same set of software, hardware, and spectrum resources to achieve communication and sensing functions, and further improve the utilization rate of spectrum and resources. Communication-sensing integration can achieve target positioning functions including non-in-network objects, break through the limitation that existing networks only support in-network terminal positioning, and meet the needs of future multiple intelligent scenarios.

[0003] Communication-sensing integration can use communication devices in the existing network to transmit sensing signals into space, and then use its own sensing receiver to receive the echo signals reflected by the sensing target. By extracting and processing the echo signals, sensing functions such as target detection, positioning, speed measurement, identification, or tracking can be realized.

[0004] However, in the sensing process, how to design a reasonable MIMO (multi-input multi-output) antenna configuration (that is, the configuration of vertical and horizontal antennas at the sensing transmitter and receiver) to reduce the overhead while meeting the sensing accuracy is a problem that needs to be solved. Summary of the Invention

[0005] Embodiments of the present invention provide a multiple-input multiple-output antenna configuration method, a server, a sensing device, and a medium, which are used to solve the problem of how to design a reasonable MIMO antenna configuration to reduce the overhead while meeting the sensing accuracy.

[0006] To solve the above technical problems, the present invention is implemented as follows:

[0007] In a first aspect, embodiments of the present invention provide a multiple-input multiple-output antenna configuration method, including:

[0008] The server receives an echo signal sent by the sensing device, where the echo signal is a signal formed by the sensing target reflecting the sensing signal after the sensing device transmits the sensing signal;

[0009] The server processes the echo signal and determines the sensing angle resolution in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device according to the processing result;

[0010] The server determines the antenna configuration parameters of the transmitter and receiver of the sensing device according to the sensing angle resolution in the horizontal and vertical directions;

[0011] The server sends the antenna configuration parameters of the transmitting end and the receiving end to the sensing device.

[0012] Optionally, the server processes the echo signal and determines the sensing angle resolution in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device according to the processing result, including:

[0013] The server processes the echo signal and obtains the number and angles of the sensing targets according to the processing result;

[0014] The server determines the sensing angle resolution in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device according to the number and angles of the sensing targets.

[0015] Optionally, the sensing angle resolution is one of the following:

[0016] A first value, which is the ratio of the width of the sensing signal to the number of the sensing targets covered by the sensing signal;

[0017] A second value, which is the minimum value of the angular differences between two adjacent ones of the multiple sensing targets covered by the sensing signal;

[0018] The minimum value of the first value and the second value.

[0019] Optionally, the server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the sensing angle resolution in the horizontal and vertical directions, including:

[0020] The server determines the non-repetition degree information of the horizontal array factor and the non-repetition degree information of the vertical array factor of the multiple-input multiple-output antenna array of the sensing device according to the sensing angle resolution in the horizontal and vertical directions;

[0021] The server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the non-repetition degree information of the horizontal array factor and the non-repetition degree information of the vertical array factor.

[0022] Optionally, the non-repetition degree information of the horizontal array factor is calculated by the following formula:

[0023]

[0024] The non-repetition degree information of the vertical array factor is calculated by the following formula:

[0025] where Mφ is the non - repetition degree information of the horizontal - direction array factor, Δφ is the sensing angle resolution in the horizontal direction, and M θ is the non - repetition degree information of the vertical - direction array factor, and Δθ is the sensing angle resolution in the vertical direction.

[0026] Optionally, the transmitting - end antenna configuration parameters include at least one of the following: the starting index of the horizontal - direction antenna, the number of horizontal - direction antennas, the horizontal - direction antenna spacing, the starting index of the vertical - direction antenna, the number of vertical - direction antennas, and the vertical - direction antenna spacing;

[0027] The transmitting - end antenna configuration parameters include at least one of the following: the starting index of the horizontal - direction antenna, the number of horizontal - direction antennas, the horizontal - direction antenna spacing, the starting index of the vertical - direction antenna, the number of vertical - direction antennas, and the vertical - direction antenna spacing.

[0028] Optionally, the server determines the transmitting - end and receiving - end antenna configuration parameters of the sensing device according to the non - repetition degree information of the horizontal - direction array factor and the non - repetition degree information of the vertical - direction array factor, including at least one of the following:

[0029] Determine the number of transmitting - end antennas and the number of receiving - end antennas of the sensing device according to the non - repetition degree information of the horizontal - direction array factor and the non - repetition degree information of the vertical - direction array factor, where the number of transmitting - end antennas includes: the number of horizontal - direction antennas and the number of vertical - direction antennas. The number of transmitting - end antennas includes: the number of horizontal - direction antennas and the number of vertical - direction antennas. The number of transmitting - end horizontal - direction antennas and the number of receiving - end horizontal - direction antennas satisfy the following conditions: the difference between the product of the two and the non - repetition degree information of the horizontal - direction array factor, and the sum of the two are both minimized; the number of transmitting - end vertical - direction antennas and the number of receiving - end vertical - direction antennas satisfy the following conditions: the difference between the product of the two and the non - repetition degree information of the vertical - direction array factor, and the sum of the two are both minimized;

[0030] Determine the transmitting - end horizontal - direction antenna index, the transmitting - end vertical - direction antenna index, the receiving - end horizontal - direction antenna index, and the receiving - end vertical - direction antenna index of the sensing device according to the non - repetition degree information of the horizontal - direction array factor and the non - repetition degree information of the vertical - direction array factor;

[0031] Determine the starting index of the transmitting - end horizontal - direction antenna, the starting index of the transmitting - end vertical - direction antenna, the starting index of the receiving - end horizontal - direction antenna, and the starting index of the receiving - end vertical - direction antenna of the sensing device according to the non - repetition degree information of the horizontal - direction array factor and the non - repetition degree information of the vertical - direction array factor.

[0032] In a second aspect, an embodiment of the present invention provides a multiple - input multiple - output antenna configuration method, including:

[0033] Step S21: The sensing device emits a sensing signal;

[0034] Step S22: The sensing device receives an echo signal formed by the reflection of the sensing signal by the sensing target;

[0035] Step S23: The sensing device sends the echo signal to the server, and the server processes the echo signal and determines the sensing angle resolution in the horizontal and vertical directions of the multi-input multi-output antenna array of the sensing device according to the processing result; according to the sensing angle resolution in the horizontal and vertical directions, determine the antenna configuration parameters of the transmitting end and the receiving end of the sensing device;

[0036] Step S24: The sensing device receives the antenna configuration parameters of the transmitting end and the receiving end sent by the server;

[0037] Step S25: The sensing device determines the antennas in the horizontal and vertical directions activated at the transmitting end and the receiving end according to the antenna configuration parameters of the transmitting end and the receiving end;

[0038] Step S26: The sensing device uses the antennas in the horizontal and vertical directions activated at the transmitting end and the receiving end to emit a sensing signal;

[0039] Steps S22 - S26 are repeatedly executed until the termination condition is met.

[0040] In a third aspect, an embodiment of the present invention provides a server, including:

[0041] A receiving module, configured to receive an echo signal sent by a sensing device, where the echo signal is a signal formed by the reflection of the sensing signal by the sensing target after the sensing device emits the sensing signal;

[0042] A processing module, configured to process the echo signal and determine the sensing angle resolution in the horizontal and vertical directions of the multi-input multi-output antenna array of the sensing device according to the processing result;

[0043] A determining module, configured to determine the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the sensing angle resolution in the horizontal and vertical directions;

[0044] A sending module, configured to send the antenna configuration parameters of the transmitting end and the receiving end to the sensing device.

[0045] In a fourth aspect, an embodiment of the present invention provides a sensing device, including:

[0046] A first sending module, configured to emit a sensing signal;

[0047] A first receiving module, configured to receive an echo signal formed by a sensing target reflecting the sensing signal;

[0048] A second transmitting module, configured to transmit the echo signal to a server, where the server processes the echo signal and determines the sensing angle resolution in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device according to the processing result; and determine the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the sensing angle resolution in the horizontal and vertical directions;

[0049] A second receiving module, configured to receive the antenna configuration parameters of the transmitting end and the receiving end sent by the server;

[0050] A determining module, configured to determine the antennas in the horizontal and vertical directions activated at the transmitting end and the receiving end according to the antenna configuration parameters of the transmitting end and the receiving end;

[0051] A third transmitting module, configured to use the antennas in the horizontal and vertical directions activated at the transmitting end and the receiving end to transmit sensing signals;

[0052] An execution module, configured to control the second transmitting module, the second receiving module, the determining module, and the third transmitting module to repeat the execution until a termination condition is met.

[0053] In a fifth aspect, an embodiment of the present invention provides a server, including: a processor, a memory, and a program stored on the memory and executable on the processor, where when the program is executed by the processor, the steps of the multiple-input multiple-output antenna configuration method described in the first aspect above are implemented.

[0054] In a sixth aspect, an embodiment of the present invention provides a sensing device, including: a processor, a memory, and a program stored on the memory and executable on the processor, where when the program is executed by the processor, the steps of the multiple-input multiple-output antenna configuration method described in the second aspect above are implemented.

[0055] In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the multiple-input multiple-output antenna configuration method described in the first aspect above are implemented; or when the computer program is executed by a processor, the steps of the multiple-input multiple-output antenna configuration method described in the second aspect above are implemented.

[0056] In the embodiments of the present invention, according to the sensing angle resolution requirement, some antennas in the vertical and horizontal directions of the transmitting end and the receiving end are selected to be activated, and the overhead is reduced on the premise of meeting the sensing angle resolution. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Also, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0058] Figure 1 is a schematic diagram of the architecture of a perception system according to an embodiment of the present invention;

[0059] Figure 2 is a schematic flowchart of a multi-input multi-output antenna configuration method executed by a server according to an embodiment of the present invention;

[0060] Figure 3 is a schematic flowchart of a multi-input multi-output antenna configuration method executed by a perception device according to an embodiment of the present invention;

[0061] Figure 4 is a schematic diagram of the transmitting and receiving antenna arrays of a perception device according to Embodiment 1 of the present invention;

[0062] Figure 5 is a schematic diagram of SSB beam scanning according to Embodiment 1 of the present invention;

[0063] Figure 6 is a schematic diagram of the antenna configuration of the transmitting end and the receiving end corresponding to the SSB1-3 direction according to Embodiment 1 of the present invention;

[0064] Figure 7 is a schematic diagram of the antenna configuration of the transmitting end and the receiving end corresponding to the SSB2-2 direction according to Embodiment 1 of the present invention;

[0065] Figure 8 is one of the schematic diagrams of the structure of a server according to an embodiment of the present invention;

[0066] Figure 9 is one of the schematic diagrams of the structure of a perception device according to an embodiment of the present invention;

[0067] Figure 10 is another schematic diagram of the structure of a server according to an embodiment of the present invention;

[0068] Figure 11 is another schematic diagram of the structure of a perception device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0069] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0070] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the sensing system according to the embodiment of the present invention. The sensing system includes: a server and a sensing device. The sensing device is a communication device with a multiple-input multiple-output antenna array, such as a base station or a terminal (UE), etc. The sensing device transmits sensing signals through the multiple-input multiple-output antenna array and receives the echo signals reflected by the sensing target from the sensing signals. The server is connected to the sensing device and realizes sensing functions such as target detection, positioning, speed measurement, identification, or tracking through the extraction and processing of the echo signals.

[0071] In communication sensing integration, angle measurement is a key step in positioning and speed measurement. The antenna array factor of a MIMO uniform planar array can be expressed as

[0072]

[0073] where N H and N V are the number of antennas in the horizontal and vertical directions, θ and φ are the vertical angle and the horizontal angle, k is the wave number, and d is the antenna spacing. The accurate vertical angle and horizontal angle can be calculated using the array factor for positioning and speed measurement.

[0074] During the sensing process, there is a co-location relationship between the transmitting end and the receiving end of the sensing device. Therefore, for a far-field sensing target, the transmitting angle and the receiving angle of the sensing device are equal. As an example, considering the vertical antennas, without loss of generality, it can be assumed that the phase factor of the shortest sensing signal propagation path between the transmitting and receiving antennas of the sensing device is 1 (i.e., the phase is 0°). Then, the array factor realized by the antennas of the sensing device includes:

[0075]

[0076] It can be seen that using antennas with consecutive indices will result in a large number of repeated array factors.

[0077] However, the calculation formula for the sensing angle resolution is which only depends on the richness of the array factor. Here, the richness of the array factor refers to the number of non-repeated array factors of the multiple-input multiple-output antenna array. Therefore, using antennas with consecutive indices to participate in sensing increases the resource overhead but cannot improve the sensing angle resolution.

[0078] By observing the above array factor, it can be seen that when the number of receiving antennas is only 2 and the interval is N V d, the array factor includes:

[0079]

[0080] There is no loss in the richness of the array factor.

[0081] Therefore, how to design a reasonable MIMO antenna configuration method to reduce the overhead while meeting the sensing angular resolution is a problem that needs to be solved.

[0082] Please refer to Figure 2 , an embodiment of the present invention provides a multiple-input multiple-output antenna configuration method, including:

[0083] Step S11: The server receives the echo signal sent by the sensing device, where the echo signal is the signal formed by the reflection of the sensing signal by the sensing target after the sensing device transmits the sensing signal;

[0084] In an embodiment of the present invention, optionally, the sensing signal may be, for example, an SSB (Synchronization Signal / PBCH, synchronization signal block) beam. In an embodiment of the present invention, the number and direction of the sensing signals (i.e., SSB beams) can be pre-configured to ensure that the required sensing area can be covered.

[0085] Step S12: The server processes the echo signal and determines the sensing angular resolution in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device according to the processing result;

[0086] Step S13: The server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the sensing angular resolution in the horizontal and vertical directions;

[0087] Step S14: The server sends the antenna configuration parameters of the transmitting end and the receiving end to the sensing device.

[0088] The present invention selects to activate some antennas in the vertical and horizontal directions of the transmitting end and the receiving end according to the sensing angular resolution requirement, and reduces the overhead while meeting the sensing angular resolution.

[0089] In an embodiment of the present invention, optionally, the server processes the echo signal and determines the sensing angular resolution in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device, including:

[0090] Step S121: The server processes the echo signal and obtains the number and angle of the sensed target according to the processing result.

[0091] In the embodiments of the present invention, the server may use algorithms such as the estimation of signal via rotational invariance techniques (ESPRIT), multiple signal classification (MUSIC), or matched filtering to process the echo signal and obtain the number and angle of the sensed target.

[0092] Step S122: The server determines the sensing angle resolutions in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device according to the number and angle of the sensed target.

[0093] In the embodiments of the present invention, optionally, the sensing angle resolution is one of the following:

[0094] A first value, which is the ratio of the width of the sensing signal to the number of the sensed targets covered by the sensing signal;

[0095] A second value, which is the minimum value of the angle differences between two adjacent ones of the multiple sensed targets covered by the sensing signal;

[0096] The minimum value of the first value and the second value.

[0097] In the embodiments of the present invention, optionally, the server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the sensing angle resolutions in the horizontal and vertical directions, including:

[0098] Step S131: The server determines the non-repetition degree information of the horizontal direction array factor and the non-repetition degree information of the vertical direction array factor of the multiple-input multiple-output antenna array of the sensing device according to the sensing angle resolutions in the horizontal and vertical directions.

[0099] The non-repetition degree information of the array factor is used to indicate the number of non-repetitive array factors of the multiple-input multiple-output antenna array, and can also be referred to as the richness of the array factor.

[0100] Step S132: The server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the non-repetition degree information of the horizontal direction array factor and the non-repetition degree information of the vertical direction array factor.

[0101] In an embodiment of the present invention, optionally, the non - repeatability information of the horizontal - direction array factor is calculated using the following formula:

[0102] The non - repeatability information of the vertical - direction array factor is calculated using the following formula:

[0103] where M φ is the non - repeatability information of the horizontal - direction array factor, Δφ is the sensing angle resolution in the horizontal direction, M θ is the non - repeatability information of the vertical - direction array factor, and Δθ is the sensing angle resolution in the vertical direction.

[0104] In an embodiment of the present invention, optionally, the transmitting - end antenna configuration parameters include at least one of the following: horizontal - direction antenna starting index, horizontal - direction antenna number, horizontal - direction antenna spacing, vertical - direction antenna starting index, vertical - direction antenna number, and vertical - direction antenna spacing;

[0105] The transmitting - end antenna configuration parameters include at least one of the following: horizontal - direction antenna starting index, horizontal - direction antenna number, horizontal - direction antenna spacing, vertical - direction antenna starting index, vertical - direction antenna number, and vertical - direction antenna spacing.

[0106] In an embodiment of the present invention, optionally, the server determines the transmitting - end and receiving - end antenna configuration parameters of the sensing device according to the non - repeatability information of the horizontal - direction array factor and the non - repeatability information of the vertical - direction array factor, including at least one of the following:

[0107] Step S1321: Determine the number of transmitting - end antennas and the number of receiving - end antennas of the sensing device according to the non - repeatability information of the horizontal - direction array factor and the non - repeatability information of the vertical - direction array factor. Among them, the number of transmitting - end antennas includes the number of horizontal - direction antennas and the number of vertical - direction antennas. The number of transmitting - end antennas includes the number of horizontal - direction antennas and the number of vertical - direction antennas. The number of horizontal - direction transmitting - end antennas and the number of horizontal - direction receiving - end antennas satisfy the following conditions: the difference between the product of the two and the non - repeatability information of the horizontal - direction array factor, and the sum of the two are both the smallest; the number of vertical - direction transmitting - end antennas and the number of vertical - direction receiving - end antennas satisfy the following conditions: the difference between the product of the two and the non - repeatability information of the vertical - direction array factor, and the sum of the two are both the smallest;

[0108] Step S1322: Determine the horizontal - direction antenna index of the transmitting - end, the vertical - direction antenna index of the transmitting - end, the horizontal - direction antenna index of the receiving - end, and the vertical - direction antenna index of the receiving - end of the sensing device according to the non - repeatability information of the horizontal - direction array factor and the non - repeatability information of the vertical - direction array factor;

[0109] Step S1323: Determine the starting index of the transmitting - end horizontal - direction antenna, the starting index of the transmitting - end vertical - direction antenna, the starting index of the receiving - end horizontal - direction antenna, and the starting index of the receiving - end vertical - direction antenna of the sensing device according to the non - repetition degree information of the horizontal - direction array factor and the non - repetition degree information of the vertical - direction array factor.

[0110] In an embodiment of the present invention, optionally, the multiple - input multiple - output antenna configuration method may further include:

[0111] Step S15: The server receives a new echo signal sent by the sensing device. The new echo signal is a signal formed by the sensing target reflecting the sensing signal after the sensing device determines the antennas in the activated horizontal and vertical directions of the transmitting end and the receiving end according to the received antenna configuration parameters of the transmitting end and the receiving end, and uses the antennas in the activated horizontal and vertical directions of the transmitting end and the receiving end to transmit the sensing signal.

[0112] Step S16: The server processes the new echo signal and determines a new sensing angle resolution in the horizontal and vertical directions of the multiple - input multiple - output antenna array of the sensing device according to the processing result.

[0113] Step S17: The server determines new antenna configuration parameters for the transmitting end and the receiving end of the sensing device according to the new sensing angle resolution in the horizontal and vertical directions.

[0114] Step S18: The server sends the new antenna configuration parameters of the transmitting end and the receiving end to the sensing device.

[0115] Repeat the above steps S15 - S18 until a termination condition is met.

[0116] Among them, the termination condition may be at least one of the following: cancellation of the sensing service requirement, sensing service exceeding the expected time, resource saturation of the sensing device, completion of the sensing service, etc.

[0117] Please refer to Figure 3 , an embodiment of the present invention further provides a multiple - input multiple - output antenna configuration method, including:

[0118] Step S21: The sensing device transmits a sensing signal.

[0119] In an embodiment of the present invention, optionally, the sensing signal may be, for example, an SSB beam. In an embodiment of the present invention, the number and direction of the sensing signals (i.e., SSB beams) can be pre - configured to ensure that the required sensing area can be covered.

[0120] When there are multiple transmitted sensing signals, optionally, the horizontal and vertical widths of the multiple sensing signals can be the same.

[0121] Step S22: The sensing device receives the echo signal formed by the reflection of the sensing signal by the sensing target;

[0122] In the embodiment of the present invention, the receiving end of the sensing device emits a beam with the same direction and width as the SSB beam of the transmitting end to receive the echo signal reflected by the sensing target.

[0123] Step S23: The sensing device sends the echo signal to the server, and the server processes the echo signal and determines the sensing angle resolution in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device according to the processing result; according to the sensing angle resolution in the horizontal and vertical directions, determine the antenna configuration parameters of the transmitting end and the receiving end of the sensing device;

[0124] Step S24: The sensing device receives the antenna configuration parameters of the transmitting end and the receiving end sent by the server;

[0125] Step S25: The sensing device determines the antennas in the horizontal and vertical directions activated by the transmitting end and the receiving end according to the antenna configuration parameters of the transmitting end and the receiving end;

[0126] Step S26: The sensing device uses the antennas in the horizontal and vertical directions activated by the transmitting end and the receiving end to transmit sensing signals;

[0127] Steps S22 - S26 are repeatedly executed until a termination condition is met.

[0128] Among them, the termination condition can be at least one of the following: cancellation of sensing service requirements, sensing service exceeding the expected time, resource saturation of the sensing device, completion of the sensing service, etc.

[0129] Next, a specific embodiment is used to illustrate the multi-input multi-output antenna configuration method of the embodiment of the present invention.

[0130] Embodiment 1:

[0131] In the embodiment of the present invention, please refer to Figure 4 , assuming that both the transmitting end Tx and the receiving end Rx of the sensing device are 16×16 dual-polarized antenna arrays.

[0132] Step S1: The sensing service is triggered, and the transmitting end Tx of the sensing device sends {SSB1-1, SSB1-2, SSB1-3, SSB1-4, SSB2-1, SSB2-2, SSB2-3, SSB2-4} beams to scan the sensing area, and the horizontal and vertical widths of the beams are both 30°, asFigure 5 as shown;

[0133] Step S2: The receiving end Rx of the sensing device receives the echo signal reflected by the sensing target from the SSB beam using a beam with the same direction and width as the transmitting end SSB and sends it to the server.

[0134] In the embodiment of the present invention, for the {SSB1-3, SSB2-2} scanning area, due to the existence of the sensing target, the receiving end of the sensing device obtains the echo signals reflected by the SSB beams of SSB1-3 and SSB2-2 from the sensing target and sends them to the server;

[0135] Step S3: The server uses the MUSIC algorithm to process the received echo signals. According to the processing results, it is determined that the number of sensing targets in the SSB1-3 direction is 3, and the angles of the 3 sensing targets are (θ, φ) = {(10°, 35°), (20°, 42°), (26°, 58°)}, and the number of sensing targets in the SSB2-2 direction is 2, and the angles are (θ, φ) = {(-12°, 15°), (-20°, 25°)}.

[0136] Step S4: According to the angles and numbers of the sensing targets estimated in Step S3, the server performs the following operations:

[0137] a) Determine the sensing angle resolution based on the minimum value of the angle difference between two adjacent sensing targets:

[0138] i. The horizontal sensing angle resolution of SSB1-3 is 6°, and the vertical sensing angle resolution is 7°.

[0139] ii. The horizontal sensing angle resolution of SSB2-2 is 8°, and the vertical sensing angle resolution is 10°;

[0140] b) Determine the non-repetition information of the array factor in the horizontal and vertical directions according to the sensing angle resolution:

[0141] i. The richness M of the horizontal array factor of SSB1-3 φ = 20, and the richness of the vertical array factor

[0142] M θ = 17;

[0143] ii. The richness M of the horizontal array factor of SSB2-2 φ = 15, and the richness of the vertical array factor

[0144] M θ = 12;

[0145] Step S5: The server determines according to M φ and Mθ Determine the antenna configuration parameters of the transmitting and receiving ends of the sensing device based on the value and send them to the sensing device.

[0146] The specific method for the server to determine the antenna configuration parameters is as follows:

[0147] a) Construct the array factor according to M φ and M θ value. Taking the horizontal array factor richness M φ as an example, under the condition of satisfying , split M φ into and and select the and that minimize and . In this case, the sum of the number of antennas at the transmitting and receiving ends is the least, and the antenna resource overhead can be minimized without affecting the sensing performance;

[0148] For example, when M φ = 17, under the condition of minimizing , M φ can be split into 2

[0149] × 9 or 3 × 6. To satisfy being the minimum, select 3 × 6, that is, is equal to 3, is equal to 6, or is equal to 6, is equal to 3.

[0150] b) Take as the number of horizontal antennas at the transmitting end, and as the number of horizontal antennas at the receiving end;

[0151] c) Determine the horizontal antenna index interval: (1) The horizontal antenna index interval at the transmitting end is , and the horizontal antenna index interval at the receiving end is 1; or (2) The horizontal antenna index interval at the transmitting end is 1, and the horizontal antenna index interval at the receiving end is

[0152] Determination method: If only the sensing service is executed, use the index interval in (1); if both the sensing and communication services are executed, use the index interval in (2);

[0153] d) The starting index of the horizontal antennas at the transmitting and receiving ends is determined according to and values, satisfying that the maximum index of all antennas does not exceed the total number of horizontal antennas, and the default starting index is 1;

[0154] Therefore, the determined antenna configuration parameters can be as follows:

[0155] SSB1-3 Horizontal direction Vertical direction

[0156] Among them, for the transmitting end: horizontal antenna starting index 1, horizontal antenna interval 1, number of horizontal antennas 10, vertical antenna starting index 1, vertical antenna interval 3, number of vertical antennas 6;

[0157] For the receiving end: horizontal antenna starting index 4, horizontal antenna interval 10, number of horizontal antennas 2, vertical antenna starting index 7, vertical antenna interval 1, number of vertical antennas 3;

[0158] SSB2-2 Horizontal direction Vertical direction

[0159] Among them, for the transmitting end: horizontal antenna starting index 1, horizontal antenna interval 4, number of horizontal antennas 4, vertical antenna starting index 1, vertical antenna interval 3, number of vertical antennas 4;

[0160] For the receiving end: horizontal antenna starting index 1, horizontal antenna interval 1, number of horizontal antennas 4, vertical antenna starting index 1, vertical antenna interval 1, number of vertical antennas 3;

[0161] Step S6: The sensing device receives the antenna configuration parameters of the transmitting end and the receiving end sent by the server, and determines the activated horizontal and vertical antennas of the transmitting end and the receiving end, as Figure 6 and Figure 7 shown;

[0162] Step S7: The transmitting end of the sensing device uses the activated antennas to transmit sensing beams (such as SSB1-3, SSB2-2) to the sensing target position, and the receiving end receives the echo signal reflected by the sensing target and sends it to the server;

[0163] Step S8: The server processes the received echo signal, obtains and updates the angle of the sensing target according to the processing result, so as to update the sensing angle resolution in the horizontal and vertical directions;

[0164] Repeat steps S4 to S8 until the sensing service meets the termination condition and ends the sensing process. The conditions for terminating the sensing service include: cancellation of service requirements, service exceeding the expected time, saturation of sensing device resources, completion of the sensing service, etc.

[0165] Please refer to Figure 8, an embodiment of the present invention further provides a server 10, including:

[0166] A receiving module 11, configured to receive an echo signal sent by a sensing device, where the echo signal is a signal formed by the sensing target reflecting the sensing signal after the sensing device emits the sensing signal;

[0167] A processing module 12, configured to process the echo signal and determine the sensing angle resolution in the horizontal direction and the vertical direction of the multiple-input multiple-output antenna array of the sensing device according to the processing result;

[0168] A determining module 13, configured to determine the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the sensing angle resolution in the horizontal direction and the vertical direction;

[0169] A transmitting module 14, configured to send the antenna configuration parameters of the transmitting end and the receiving end to the sensing device.

[0170] Optionally, the processing module 12 is configured to process the echo signal, obtain the number and angles of the sensing targets according to the processing result; and determine the sensing angle resolution in the horizontal direction and the vertical direction of the multiple-input multiple-output antenna array of the sensing device according to the number and angles of the sensing targets.

[0171] Optionally, the sensing angle resolution is one of the following:

[0172] A first value, where the first value is the ratio of the width of the sensing signal to the number of the sensing targets covered by the sensing signal;

[0173] A second value, where the second value is the minimum value of the angle differences between two adjacent sensing targets among the multiple sensing targets covered by the sensing signal;

[0174] The minimum value of the first value and the second value.

[0175] Optionally, the determining module 13 is configured to determine the non-repetition degree information of the horizontal direction array factor and the non-repetition degree information of the vertical direction array factor of the multiple-input multiple-output antenna array of the sensing device according to the sensing angle resolution in the horizontal direction and the vertical direction; and determine the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the non-repetition degree information of the horizontal direction array factor and the non-repetition degree information of the vertical direction array factor.

[0176] Optionally, the non-repetition degree information of the horizontal direction array factor is calculated by the following formula:

[0177]

[0178] The non - repetition degree information of the vertical - direction array factor is calculated using the following formula:

[0179] where M φ is the non - repetition degree information of the horizontal - direction array factor, Δφ is the sensing angle resolution in the horizontal direction, M θ is the non - repetition degree information of the vertical - direction array factor, and Δθ is the sensing angle resolution in the vertical direction.

[0180] Optionally, the transmitting - end antenna configuration parameters include at least one of the following: horizontal - direction antenna starting index, horizontal - direction antenna quantity, horizontal - direction antenna spacing, vertical - direction antenna starting index, vertical - direction antenna quantity, and vertical - direction antenna spacing;

[0181] The transmitting - end antenna configuration parameters include at least one of the following: horizontal - direction antenna starting index, horizontal - direction antenna quantity, horizontal - direction antenna spacing, vertical - direction antenna starting index, vertical - direction antenna quantity, and vertical - direction antenna spacing.

[0182] Optionally, the determining module 13 is used to perform at least one of the following:

[0183] Based on the non - repetition degree information of the horizontal - direction array factor and the non - repetition degree information of the vertical - direction array factor, determine the number of transmitting - end antennas and the number of receiving - end antennas of the sensing device, where the number of transmitting - end antennas includes: the number of horizontal - direction antennas and the number of vertical - direction antennas. The number of transmitting - end antennas includes: the number of horizontal - direction antennas and the number of vertical - direction antennas. The number of transmitting - end horizontal - direction antennas and the number of receiving - end horizontal - direction antennas satisfy the following conditions: the difference between the product of the two and the non - repetition degree information of the horizontal - direction array factor, and the sum of the two are both minimized; the number of transmitting - end vertical - direction antennas and the number of receiving - end vertical - direction antennas satisfy the following conditions: the difference between the product of the two and the non - repetition degree information of the vertical - direction array factor, and the sum of the two are both minimized;

[0184] Based on the non - repetition degree information of the horizontal - direction array factor and the non - repetition degree information of the vertical - direction array factor, determine the transmitting - end horizontal - direction antenna index, transmitting - end vertical - direction antenna index, receiving - end horizontal - direction antenna index, and receiving - end vertical - direction antenna index of the sensing device;

[0185] Based on the non - repetition degree information of the horizontal - direction array factor and the non - repetition degree information of the vertical - direction array factor, determine the transmitting - end horizontal - direction antenna starting index, transmitting - end vertical - direction antenna starting index, receiving - end horizontal - direction antenna starting index, and receiving - end vertical - direction antenna starting index of the sensing device.

[0186] Please refer to Figure 9, an embodiment of the present invention further provides a sensing device 20, including:

[0187] A first transmitting module 21 for transmitting sensing signals;

[0188] A first receiving module 22 for receiving echo signals formed by the reflection of the sensing signals by the sensing target;

[0189] A second transmitting module 23 for sending the echo signals to a server, where the server processes the echo signals and determines the sensing angle resolutions in the horizontal and vertical directions of the multiple-input multiple-output antenna array of the sensing device according to the processing results; and determines the antenna configuration parameters of the transmitting and receiving ends of the sensing device according to the sensing angle resolutions in the horizontal and vertical directions;

[0190] A second receiving module 24 for receiving the antenna configuration parameters of the transmitting and receiving ends sent by the server;

[0191] A determining module 25 for determining the antennas in the horizontal and vertical directions activated at the transmitting and receiving ends according to the antenna configuration parameters of the transmitting and receiving ends;

[0192] A third transmitting module 26 for transmitting sensing signals using the antennas in the horizontal and vertical directions activated at the transmitting and receiving ends;

[0193] An execution module 27 for controlling the second transmitting module, the second receiving module, the determining module, and the third transmitting module to repeat the execution until a termination condition is met.

[0194] Please refer to Figure 10 , an embodiment of the present invention further provides a server 30, including a processor 31, a memory 32, and a computer program stored on the memory 32 and executable on the processor 31. When the computer program is executed by the processor 31, it implements each process of the above-described embodiment of the multiple-input multiple-output antenna configuration method applied to the server, and can achieve the same technical effects. To avoid repetition, it will not be described in detail here.

[0195] Please refer to Figure 11 , an embodiment of the present invention further provides a sensing device 40, including a processor 41, a memory 42, and a computer program stored on the memory 42 and executable on the processor 41. When the computer program is executed by the processor 41, it implements each process of the above-described embodiment of the multiple-input multiple-output antenna configuration method applied to the terminal, and can achieve the same technical effects. To avoid repetition, it will not be described in detail here.

[0196] An embodiment of the present invention further provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, it implements each process of the above-described embodiment of the multi-input multi-output antenna configuration method and can achieve the same technical effects. To avoid repetition, details are not described herein again. Among them, the computer-readable storage medium may be, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc.

[0197] It should be noted that in this article, the terms "including", "comprising", or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the presence of another identical element in the process, method, article, or device including that element.

[0198] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment method can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc) and includes several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in various embodiments of the present invention.

[0199] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present invention, and all of them fall within the protection scope of the present invention.

Claims

1. A method for multi-input multi-output antenna configuration, characterized in that, it includes: The server receives the echo signal sent by the sensing device, and the echo signal is the signal formed by the sensing target reflecting the sensing signal after the sensing device transmits the sensing signal; The server processes the echo signal and determines the sensing angle resolution in the horizontal and vertical directions of the multi-input multi-output antenna array of the sensing device according to the processing result; The server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the sensing angle resolution in the horizontal and vertical directions; The server sends the antenna configuration parameters of the transmitting end and the receiving end to the sensing device.

2. The method according to claim 1, characterized in that, The server processes the echo signal and determines the sensing angle resolution in the horizontal and vertical directions of the multi-input multi-output antenna array of the sensing device, including: The server processes the echo signal and obtains the number and angle of the sensing targets according to the processing result; The server determines the sensing angle resolution in the horizontal and vertical directions of the multi-input multi-output antenna array of the sensing device according to the number and angle of the sensing targets.

3. The method according to claim 2, characterized in that, The sensing angle resolution is one of the following: The first value, which is the ratio of the width of the sensing signal to the number of the sensing targets covered by the sensing signal; The second value, which is the minimum value of the angle difference between two adjacent sensing targets among the multiple sensing targets covered by the sensing signal; The minimum value of the first value and the second value.

4. The method according to claim 1, characterized in that, The server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the sensing angle resolution in the horizontal and vertical directions, including: The server determines the non-repetition information of the horizontal direction array factor and the non-repetition information of the vertical direction array factor of the multi-input multi-output antenna array of the sensing device according to the sensing angle resolution in the horizontal and vertical directions; The server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the non-repetition information of the horizontal direction array factor and the non-repetition information of the vertical direction array factor.

5. The method according to claim 4, characterized in that, The non-repetition degree information of the horizontal direction array factor is calculated by the following formula: The non-repetition degree information of the vertical direction array factor is calculated by the following formula: where M φ is the non - repetition degree information of the horizontal - direction array factor, Δφ is the sensing angle resolution in the horizontal direction, and M θ is the non - repetition degree information of the vertical - direction array factor, and Δθ is the sensing angle resolution in the vertical direction.

6. The method according to any one of claims 1-5, characterized in that: The transmitting end antenna configuration parameters include at least one of the following: horizontal direction antenna starting index, horizontal direction antenna quantity, horizontal direction antenna interval, vertical direction antenna starting index, vertical direction antenna quantity, and vertical direction antenna interval; The transmitting end antenna configuration parameters include at least one of the following: horizontal direction antenna starting index, horizontal direction antenna quantity, horizontal direction antenna interval, vertical direction antenna starting index, vertical direction antenna quantity, and vertical direction antenna interval.

7. The method according to claim 4, Characterized in that, The server determines the antenna configuration parameters of the transmitting end and the receiving end of the sensing device according to the horizontal direction array factor non - repetition degree information and the vertical direction array factor non - repetition degree information, including at least one of the following: According to the horizontal direction array factor non - repetition degree information and the vertical direction array factor non - repetition degree information, determine the number of transmitting - end antennas and receiving - end antennas of the sensing device. Among them, the number of transmitting - end antennas includes the number of horizontal - direction antennas and the number of vertical - direction antennas. The number of transmitting - end antennas includes the number of horizontal - direction antennas and the number of vertical - direction antennas. The product of the number of horizontal - direction antennas at the transmitting end and the number of horizontal - direction antennas at the receiving end minus the horizontal direction array factor non - repetition degree information, and the sum of the two are both the smallest; the product of the number of vertical - direction antennas at the transmitting end and the number of vertical - direction antennas at the receiving end minus the vertical direction array factor non - repetition degree information, and the sum of the two are both the smallest; According to the horizontal direction array factor non - repetition degree information and the vertical direction array factor non - repetition degree information, determine the horizontal - direction antenna index at the transmitting end, the vertical - direction antenna index at the transmitting end, the horizontal - direction antenna index at the receiving end, and the vertical - direction antenna index at the receiving end of the sensing device; According to the horizontal direction array factor non - repetition degree information and the vertical direction array factor non - repetition degree information, determine the starting index of the horizontal - direction antennas at the transmitting end, the starting index of the vertical - direction antennas at the transmitting end, the starting index of the horizontal - direction antennas at the receiving end, and the starting index of the vertical - direction antennas at the receiving end of the sensing device.

8. A multiple - input multiple - output antenna configuration method, Characterized in that, It includes: Step S21: The sensing device transmits a sensing signal; Step S22: The sensing device receives an echo signal formed by the reflection of the sensing signal by the sensing target; Step S23: The sensing device sends the echo signal to the server, and the server processes the echo signal and determines the sensing angle resolution in the horizontal direction and the vertical direction of the multiple - input multiple - output antenna array of the sensing device according to the processing result; according to the sensing angle resolution in the horizontal direction and the vertical direction, determine the antenna configuration parameters of the transmitting end and the receiving end of the sensing device; Step S24: The sensing device receives the antenna configuration parameters of the transmitting end and the receiving end sent by the server; Step S25: The sensing device determines the activated horizontal - direction and vertical - direction antennas at the transmitting end and the receiving end according to the antenna configuration parameters of the transmitting end and the receiving end; Step S26: The sensing device uses the activated horizontal - direction and vertical - direction antennas at the transmitting end and the receiving end to transmit a sensing signal; Repeat steps S22 - S26 until the termination condition is met.

9. A server, Characterized in that, It includes: A receiving module, configured to receive the echo signal sent by the sensing device, where the echo signal is a signal formed by the reflection of the sensing signal by the sensing target after the sensing device transmits the sensing signal; A processing module, configured to process the echo signal and determine the sensing angle resolutions in the horizontal and vertical directions of the multi-input multi-output antenna array of the sensing device according to the processing results; A determination module, configured to determine the antenna configuration parameters of the transmitting and receiving ends of the sensing device according to the sensing angle resolutions in the horizontal and vertical directions; A sending module, configured to send the antenna configuration parameters of the transmitting and receiving ends to the sensing device.

10. A sensing device, characterized in that it includes: A first sending module, configured to send sensing signals; A first receiving module, configured to receive the echo signals formed by the reflection of the sensing signals by the sensing target; A second sending module, configured to send the echo signals to the server, and the server processes the echo signals and determines the sensing angle resolutions in the horizontal and vertical directions of the multi-input multi-output antenna array of the sensing device according to the processing results; and determines the antenna configuration parameters of the transmitting and receiving ends of the sensing device according to the sensing angle resolutions in the horizontal and vertical directions; A second receiving module, configured to receive the antenna configuration parameters of the transmitting and receiving ends sent by the server; A determination module, configured to determine the antennas in the horizontal and vertical directions activated by the transmitting and receiving ends according to the antenna configuration parameters of the transmitting and receiving ends; A third sending module, configured to send sensing signals using the antennas in the horizontal and vertical directions activated by the transmitting and receiving ends; An execution module, configured to control the second sending module, the second receiving module, the determination module, and the third sending module to repeatedly execute until a termination condition is met.

11. A server, characterized in that it includes: A processor, a memory, and a program stored on the memory and executable on the processor, and when the program is executed by the processor, it implements the steps of the multi-input multi-output antenna configuration method according to any one of claims 1 to 7.

12. A sensing device, characterized in that it includes: A processor, a memory, and a program stored on the memory and executable on the processor, and when the program is executed by the processor, it implements the steps of the multi-input multi-output antenna configuration method according to any one of claims 9 to 10.

13. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, it implements the steps of the multi-input multi-output antenna configuration method according to any one of claims 1 to 7; or when the computer program is executed by a processor, it implements the steps of the multi-input multi-output antenna configuration method according to claim 8.

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