Sensing signal receiving method, communication apparatus, storage medium, and program product

Abstract

A sensing signal receiving method, a communication apparatus, a storage medium, and a program product. The method comprises: on the basis of a preset correction condition, testing the sensing performance of an integrated sensing and communication system under the current transmission and reception timing to obtain a test result; and when the test result indicates that the sensing performance of the integrated sensing and communication system has decreased, receiving a sensing signal by using corrected preset transmission and reception timing.

Description

Methods for receiving sensing signals, communication devices, storage media, and software products

[0001] This disclosure claims priority to Chinese patent application No. 202410923956.2, filed on July 10, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a method for receiving sensing signals, a communication device, a storage medium, and a program product. Background Technology

[0003] Integrated sensing and communication (ISAC), also known as integrated communication and sensing, refers to a new type of information processing technology that achieves synergy between sensing and communication functions based on the sharing of software and hardware resources or information. It can effectively improve spectrum efficiency, hardware efficiency, and information processing efficiency, thereby better meeting the transmission needs of ultra-high-speed applications such as intelligent interaction, autonomous driving, sensor interconnection, and holographic communication, and providing users with diversified intelligent services. Summary of the Invention

[0004] This disclosure provides a method, apparatus, storage medium, and program product for receiving sensing signals.

[0005] Firstly, a method for receiving a sensing signal is provided, the method comprising:

[0006] Based on preset correction conditions, the sensing performance of the integrated communication and sensing system under the current transmission and reception timing is detected, and the detection results are obtained.

[0007] When the detection results indicate that the sensing performance of the integrated communication and sensing system has decreased, the sensing signal is received with a preset transmit / receive timing sequence, which is the corrected transmit / receive timing sequence.

[0008] In a second aspect, a communication device is provided, which includes a processing module and a receiving module.

[0009] The processing module is used to detect the sensing performance of the integrated communication and sensing system under the current transmission and reception timing based on preset correction conditions, and obtain the detection results;

[0010] The receiving module is used to receive sensing signals in a preset transmission and reception sequence when the detection result indicates that the sensing performance of the integrated communication and sensing system has decreased. The preset transmission and reception sequence is the corrected transmission and reception sequence.

[0011] Thirdly, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store instructions executable by the processor; and the processor executes the above-described method when executing the instructions.

[0012] Fourthly, a computer-readable storage medium is provided that stores computer instructions that, when executed on a computer, cause the computer to perform the methods described above.

[0013] Fifthly, a computer program product containing computer instructions is provided, which, when executed on a computer, causes the computer to perform the methods described above. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the technical solutions of this disclosure and constitute a part of the specification. They are used together with the embodiments of this disclosure to explain the technical solutions of this disclosure and do not constitute a limitation on the technical solutions of this disclosure.

[0015] Figure 1 is a schematic diagram of a communication-aware integrated network architecture according to some embodiments.

[0016] Figure 2 is a flowchart of a method for receiving a sensing signal according to some embodiments.

[0017] Figure 3 is a schematic diagram of a transmit / receive timing according to some embodiments.

[0018] Figure 4 is a schematic diagram of another transmit / receive timing according to some embodiments.

[0019] Figure 5 is a schematic diagram of a continuous wave signal according to some embodiments.

[0020] Figure 6 is a schematic diagram of another transmit / receive timing according to some embodiments.

[0021] Figure 7 is a schematic diagram of a signal propagation path according to some embodiments.

[0022] Figure 8 is a schematic diagram of another transmit / receive timing according to some embodiments.

[0023] Figure 9 is a schematic diagram of another transmit / receive timing according to some embodiments.

[0024] Figure 10 is a schematic diagram of another transmit / receive timing according to some embodiments.

[0025] Figure 11 is a schematic diagram of another continuous wave signal according to some embodiments.

[0026] Figure 12 is a block diagram of a communication device according to some embodiments.

[0027] Figure 13 is a schematic diagram of a communication device according to some embodiments. Detailed Implementation

[0028] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0029] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0031] In this disclosure, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0032] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0033] With the rapid development of mobile communication technology, the services enabled by mobile communication systems are no longer limited to the traditional communication field, but are constantly extending to vertical industries, bringing profound changes to all walks of life. In this process, communication sensing fusion technology, as an important evolution direction of 5G-Advanced, has expanded its application scenarios from low-altitude to a wider range of waterway and marine scenarios.

[0034] In integrated communication and sensing systems, information about target objects or the environment (such as attributes and states) is obtained by analyzing direct, reflected, and scattered radio wave signals. This enables functions such as positioning, ranging, velocity measurement, imaging, detection, recognition, and environmental reconstruction. Therefore, the sensing signals must simultaneously meet the requirements of accurate data transmission and precise target perception. Ensuring the sensing performance of integrated communication and sensing systems is a pressing issue that needs to be addressed.

[0035] However, the networking process of sensing signals in integrated communication and sensing systems presents different problems compared to the networking process of general communication signals. For example, unlike time-division duplex (TDD) communication signals, which do not receive signals while transmitting, the receiver rarely experiences power saturation even with high transmission power, and sufficient uplink / downlink switching time is reserved to avoid affecting signal reception. For sensing signals, taking pulse signals as an example, because the transmission time of pulse signals is very short and most of the time is spent receiving, when multiple stations transmit pulse signals, a near-full-duplex transmission and reception system is formed due to the different transmission paths between stations. This near-full-duplex system may receive signals simultaneously while transmitting, and the receiver may experience power saturation under high transmission power.

[0036] The integrated communication and sensing system that senses signal transmission may also have the problems that are common in full-duplex and near-full-duplex systems, such as power saturation, interference, and radio frequency timing switching, thus affecting the sensing performance of the integrated communication and sensing system.

[0037] For example, power saturation refers to the problem that excessive transmission power of the sensed signal may cause the receiver to saturate.

[0038] For example, interference refers to the situation where multiple stations simultaneously transmit pulse signals. Because the transmission paths of the signals between stations are different, other pulse signals may overlap with the sensing signal that needs to be received in time, which may cause interference to the sensing signal.

[0039] For example, RF timing switching problems mainly occur during the process of alternating transmission and reception. Since the same RF channel is used for transmission and reception, timing switching is required between transmission and reception, which may cause problems such as conflict and interference between transmission and reception signals, signal loss or decoding errors.

[0040] In view of this, some embodiments of this disclosure provide a method for receiving sensing signals, which can correct the current transmission and reception timing of sensing signals when the sensing performance of the integrated communication and sensing system is detected to be reduced, and receive the sensing signals with the corrected transmission and reception timing, so that the received sensing signals meet the system requirements after the transmission and reception timing is corrected, thereby improving the sensing performance of the integrated communication and sensing system.

[0041] Figure 1 is a schematic diagram of a communication-sensing integrated network architecture according to some embodiments. As shown in Figure 1, the communication-sensing integrated network architecture includes core network elements such as application function (AF) and sensing function (SF). In addition, the communication-sensing integrated network architecture may also include a baseband unit (BBU) and an active antenna unit (AAU).

[0042] For example, there can be one or more AFs, and the information of each AF can include real-time values ​​of its network parameters. For instance, the network parameters of an AF can include one or more of the following: data transmission channel type, air interface signal strength, routing path, network speed, network rate limit, latency, power consumption, transmission rate, and load and idle status. For example, the data transmission channel type can include one or more of video, voice, and file transmission. In some embodiments of this disclosure, an AF can also be understood as a presentation platform for sensing tasks and is used to handle communication sensing tasks related to the application layer, such as data collection, processing, and analysis.

[0043] SF can be understood as a sensing independent network element, used to provide transmission gateway, sensing service control, and data aggregation and forwarding. For example, SF can receive at least one of the information from AF and sensing data, and process it to determine the sensing information.

[0044] A Base Unit (BBU), also known as a Sensing BBU, is responsible for processing and forwarding base station communication and sensing signals. A BBU may include components such as a baseband board, a main control board, and a sensing board. For example, the baseband board can be used for communication baseband processing and forwarding sensing data to the sensing board; the main control board can be used for traditional cell management and sensing data transmission; and the sensing board can be used for sensing signal processing and sensing data processing. In some embodiments, the sensing board can also output structured sensing target results.

[0045] The AAU integrates radio frequency (RF) and antenna functions, enabling it to convert RF signals into baseband signals or vice versa for transmission in wireless environments. Furthermore, the AAU can also possess sensing capabilities, such as detecting environmental information by receiving wireless signals.

[0046] Furthermore, as shown in Figure 1, the perceived target can be any kind of object that can be perceived, such as mountains, forests, or buildings, and can also include vehicles, pedestrians, boats on rivers, low-altitude drones, or ships at sea.

[0047] Therefore, the sensing signal received in the integrated communication and sensing system can be the signal obtained by detecting and identifying the sensed target. This signal can be transmitted through a wireless channel and can be used for various functions such as target positioning, speed measurement, imaging, detection and identification.

[0048] In some embodiments, the integrated communication and sensing network architecture may further include a sensing base station, also referred to as a base station. In some embodiments, the sensing base station has the aforementioned BBU and AAU. The sensing base station is used for transmitting and receiving communication and sensing signals, as well as for setting sensing waveforms, frame structures, and network configurations. Exemplarily, the sensing base station can be a network-side device with wireless transceiver capabilities. For example, it can be a base station, an evolved NodeB (eNodeB), a next-generation NodeB (gNB) in a 5G mobile communication system, a transmission reception point (TRP), a base station evolved from the 3rd Generation Partnership Project (3GPP), an access node in a WiFi system, a wireless relay node, or a wireless backhaul node, etc. Furthermore, the sensing mode of the base station in the embodiments of this disclosure can be a self-transmitting and self-receiving mode or a cooperative sensing mode.

[0049] It should be understood that Figure 1 is merely an exemplary architecture diagram, and the number of devices or network elements shown in Figure 1 is not limited. Furthermore, in addition to the devices or network elements shown in Figure 1, the integrated communication-aware network architecture may also include other devices or network elements, which are not limited in this disclosure.

[0050] Some embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0051] Figure 2 is a flowchart of a method for receiving a sensing signal according to some embodiments. As shown in Figure 2, this disclosure provides a method for receiving a sensing signal, which includes steps S101 and S102.

[0052] In S101, the sensing performance of the integrated communication and sensing system under the current transmission and reception timing is detected based on preset correction conditions, and the detection results are obtained.

[0053] For example, the current transceiver timing can refer to the transceiver timing used by the integrated sensing system to transmit and receive sensing signals during the current sensing process. In some embodiments, the transceiver timing includes a switching time period, a transceiver window, and a buffer time period. The switching time period is the time period during which the receiver switches to the transmit mode, the transceiver window is the time period for receiving and transmitting signals, and the buffer time period is the time interval between transmitting and receiving two adjacent sensing signals, or the buffer time period can be understood as the time interval between two adjacent transceiver windows.

[0054] For example, the duration unit of each time period in this transmit / receive timing sequence can be microseconds (µs).

[0055] In some examples, when the sensed signal is a pulse signal, as shown in Figure 3, the transmit / receive timing may include a switching time period N1, a transmit / receive window LR1, and a buffer time period N2.

[0056] The switching time period N1 can also be understood as the switching time period reserved for radio frequency before sending pulse signals. The length of N1 can be determined based on the radio frequency characteristics of the receiving device (or receiver).

[0057] The transceiver window LR1, also known as the pulse window, can include three parts: time period T, time period G, and time period R. Time period T can be the time period for pulse transmission, i.e., the pulse width. Time period G can be the transition time period between RF transmission and RF reception. The length of time period G can also be determined based on the RF characteristics of the communication device. Time period R can be the time period for RF reception and can also be called the receive window.

[0058] The buffer period N2 can also be understood as the buffer period between the completion of receiving the current sensing signal and the transmission of the next sensing signal. Furthermore, R0 represents the start time of time period R. Starting with LR1, the time corresponding to R0 includes the time from the start boundary point of LR1 to the start point of time period R. R1 represents the end point of time period R. Starting with LR1, the time corresponding to R1 includes the time from the start boundary point of LR1 to the receiving point of time period R.

[0059] In other examples, when the sensed signal is a continuous wave signal, as shown in Figure 4, the transmit / receive timing may also include a switching time period N1, a transmit / receive window LR2, and a buffer time period N2.

[0060] For example, the relevant descriptions of the switching time period N1 and the buffer time period N2 can be found in Figure 3, and will not be repeated here. Unlike the transmit / receive timing shown in Figure 3, the transmit / receive window LR2 in Figure 4 can be called a continuous wave window, which may include a cyclic prefix (CP). This time period is both the transmission time and the reception time, and the reception channel is different from the transmission channel.

[0061] In some embodiments, the above-mentioned preset correction conditions include at least one of the following: 1) when receiving the sensing signal in the current transceiver timing sequence, the predicted receiving power of the transceiver is greater than or equal to the saturation threshold; 2) the receiving time of the sensing signal received in the current transceiver timing sequence is within the receiving window, and the receiving power is not less than the maximum tolerable power; 3) the sensing signal received in the current transceiver timing sequence is a continuous wave signal, the continuous wave signal is carried on multiple consecutive symbols, and there is a time overlap between one symbol and the buffer time period among the multiple consecutive symbols.

[0062] The aforementioned saturation threshold refers to the receiving power saturation threshold of the transceiver, that is, the maximum achievable receiving power is less than this threshold. When the received power is greater than or equal to the saturation threshold, it may affect the power control of the radio frequency on the receiving channel, thereby posing a risk of signal distortion within the entire receiving window, thus degrading the sensing performance of the integrated communication and sensing system. The maximum tolerable power refers to the maximum power of the pulse interference signal that the integrated communication and sensing system can tolerate under the current sensing performance. A continuous wave signal refers to a signal whose waveform changes continuously in time without discontinuities. In this disclosure, the symbol can be an orthogonal frequency-division multiplexing (OFDM) symbol. Furthermore, the symbols in this disclosure can be similar to the OFDM symbols on the 5G-New Radio (5G-NR) communication side. In the integrated communication and sensing system, communication and sensing coexist, and the symbol boundaries need to be aligned. Therefore, communication and sensing can share a single symbol length concept for easier overall system implementation.

[0063] In some embodiments, if at least one of the preset correction conditions is met, the obtained detection results indicate a reduction in the sensing performance of the integrated communication and sensing system.

[0064] In some examples, if the detection result includes a prediction that the transceiver's received power is greater than or equal to a saturation threshold when receiving the sensing signal at the current transmit / receive timing, it indicates that the current transmit / receive timing needs to be corrected. In other words, the detection result suggests that receiving the sensing signal at the current transmit / receive timing will degrade the sensing performance of the integrated communication and sensing system. Conversely, if the detection result includes a prediction that the transceiver's received power is less than a saturation threshold when receiving the sensing signal at the current transmit / receive timing, then the current transmit / receive timing does not need to be corrected.

[0065] It should be noted that, to reduce interference in sensing signal networking, adjacent base stations typically use a different frequency for networking. However, since radio frequency (RF) devices receive signals based on the total signal bandwidth, regardless of the sub-band the signal is on, as long as it falls within the receiving frequency band, it will be received at the RF analog terminal. Therefore, this different-frequency networking method can still cause power saturation issues. Pulse signals have relatively high transmission power, and signals from adjacent base stations can directly cause receiver saturation. Whether in a co-frequency or different-frequency network, pulse signals transmitted by adjacent base stations can cause received power saturation. Received power saturation affects the RF's power control over the receiving channel, potentially leading to signal distortion throughout the receiving window and impacting the sensing performance of the integrated communication and sensing system. Therefore, a preset correction condition can be set to avoid power saturation problems.

[0066] In other examples, if the detection result includes the fact that the reception time of the sensing signal received in the current transmit / receive timing is within the reception window and the received power is not less than the maximum tolerable power, it indicates that the sensing signal is an interference signal that can interfere with other signals that need to be received, so the current transmit / receive timing needs to be corrected. In other words, the detection result indicates that the sensing performance of the integrated communication and sensing system has degraded.

[0067] Conversely, the sensed signal received at the current transmit / receive timing may not be an interference signal if any of the following conditions are met:

[0068] The reception time of the sensing signal received in the current transmit / receive timing is included in the reception window, and the received power of the sensing signal is less than the maximum tolerable power.

[0069] The reception time of the sensed signal received in the current transmit / receive sequence is included in the switching time period;

[0070] The reception time of the sensed signal received in the current transmit / receive timing sequence is included in the buffer period.

[0071] It should be noted that the distance between base stations during network deployment may vary. Some base stations, being close together, may cause power saturation, while others, being farther apart, will not. However, for base stations located further apart, the transmitting base station's signal will still reach the receiving base station, interfering with the receiver's sensing and detection performance. Furthermore, excessive interference may prevent the echo signal from detecting targets at the same location, resulting in missed detections. In this case, if the signal from the time period experiencing interference is included in the baseband analysis, the high interference intensity may raise the overall noise floor of the baseband analyzed signal, thus degrading the detection performance of echo signals in other time periods. This leads to a decrease in the sensing performance of the integrated communication and sensing system. Therefore, this preset correction condition can be set to avoid interference problems.

[0072] In some other examples, the detection result uses the sensed signal received in the current transmit / receive timing as a continuous wave signal carried on multiple consecutive symbols. One of these symbols overlaps with a buffer period. This overlap can lead to data loss or incorrect demodulation of the sensed signal during that overlapping time, thus indicating a degraded sensing performance of the integrated communication and sensing system. Conversely, the current transmit / receive timing does not require correction.

[0073] It should be noted that continuous wave signals can consist of multiple symbols. If the last symbol in a continuous wave signal is reserved for a buffer time period N2 for radio frequency switching, the reception of the last symbol will be incomplete, meaning that this continuous wave symbol cannot be correctly demodulated, thus wasting the radio resources of one symbol. For example, as shown in Figure 5, a continuous wave signal consists of three symbols: SYMBOL-1, SYMBOL-2, and SYMBOL-3. Part of the time domain resources in the last symbol (i.e., SYMBOL-3) overlaps with the N2 time period, resulting in the loss of N2 lengths of signal data at the end of the last symbol. This affects the sensing performance of the integrated communication and sensing system. Therefore, a preset correction condition can be set for this.

[0074] In S102, if the detection result indicates that the sensing performance of the integrated communication and sensing system has decreased, the sensing signal is received with a preset transmission and reception sequence.

[0075] For example, the preset transmit / receive timing is the corrected transmit / receive timing. The preset transmit / receive timing is the transmit / receive timing used by the communication sensing system to transmit and receive sensing signals, which can be the transmit / receive timing obtained after correcting the current transmit / receive timing.

[0076] For example, if the detection results corresponding to the current transmit / receive timing indicate a decrease in the sensing performance of the integrated communication and sensing system, the current transmit / receive timing can be corrected to obtain a corrected transmit / receive timing, i.e., a preset transmit / receive timing. The preset transmit / receive timing may also include a switching time period, a transmit / receive window, and a buffer time period, but the duration of each time period in the switching time period, transmit / receive window, and buffer time period included in the preset transmit / receive timing may not be equal to the current transmit / receive timing.

[0077] Furthermore, given a preset transmit / receive timing sequence, the integrated sensing system can receive sensing signals using that sequence. The sensing performance of the integrated communication and sensing system under the preset transmit / receive timing sequence is improved compared to the system under the original transmit / receive timing sequence (the current sequence), thus meeting the sensing performance requirements.

[0078] For a preset transceiver timing sequence, the sensing performance of the integrated communication and sensing system under the preset transceiver timing sequence can also be detected based on preset correction conditions. In this case, the integrated communication and sensing system does not meet any of the preset correction conditions, that is, the sensing signal received under the preset transceiver timing sequence does not meet any of the following: 1') When receiving the sensing signal under the preset transceiver timing sequence, the predicted receiving power of the transceiver is greater than or equal to the saturation threshold; 2') The receiving time of the sensing signal received under the preset transceiver timing sequence is within the receiving window, and the receiving power is not less than the tolerable maximum power; 3') The sensing signal received under the preset transceiver timing sequence is a continuous wave signal, the continuous wave signal is carried on multiple consecutive symbols, and there is any time overlap between one of the multiple consecutive symbols and the buffer time period. Therefore, the obtained detection result indicates that the sensing performance of the integrated communication and sensing system has not been reduced and no correction is required.

[0079] In some embodiments, if the sensed signal received at the current transmit / receive timing satisfies at least one of the preset correction conditions, the obtained detection result indicates a decrease in the sensing performance of the integrated sensing system. In this case, it is necessary to correct the current transmit / receive timing to obtain the preset transmit / receive timing. For example, for each preset correction condition, the detection result has at least the following possible examples. The following describes each example and the process of correcting the transmit / receive timing under each example:

[0080] Example 1: The detection result includes the prediction that the receiving power of the transceiver is greater than or equal to the saturation threshold when receiving the sensing signal in the current transmit / receive sequence.

[0081] In some embodiments, the sensing signal may be a pulse signal.

[0082] In some embodiments, the received power of the sensed signal received at the current transmit / receive timing can be predicted, and then the predicted received power of the transceiver can be obtained based on the received power, the transmit antenna gain, the receive antenna gain, and the frequency band spatial path loss corresponding to the signal propagation path length. The predicted received power of the transceiver and the saturation threshold can be compared to obtain the detection result.

[0083] For example, the predicted received power of the sensed signal received at the current transmit / receive timing can be determined based on the transmit power of the sensed signal. The integrated communication and sensing system can satisfy the following formula (1) to avoid power saturation problems:

[0084] Transmit power of the sensed signal + transmit antenna gain + receive antenna gain - frequency band spatial path loss corresponding to the signal propagation path length < receive power and saturation threshold formula (1)

[0085] In some embodiments, when receiving a sensing signal in the current transceiver timing sequence, if the predicted receiving power of the transceiver is greater than or equal to the saturation threshold, it means that the receiver has a power saturation problem. In this case, in order to avoid the occurrence of this problem, the receiving time period of the sensing signal can be determined, and the receiving time period can be removed from the receiving window of the current transceiver timing sequence, that is, the receiving channel of this receiving time period is closed, and a preset transceiver timing sequence is obtained.

[0086] For example, as shown in Figure 6, the position of the sensing signal within the receiving window of the receiving base station can be determined by the distance between the transmitting and receiving ends, i.e., the receiving time period for receiving the sensing signal. Then, by adjusting the radio frequency timing of the receiving base station, the receiving channel for this time period can be closed, effectively removing this receiving time period from the receiving window, thus obtaining a preset transmit / receive timing sequence. In this way, based on the preset transmit / receive timing sequence, sensing signals that could cause power saturation can be avoided, thus preventing the problem of receiving power saturation and improving the sensing performance of the integrated sensing system.

[0087] The distance between the receiver and transmitter is L, and the speed of light is C. Therefore, the signal propagation delay between the receiver and transmitter over the air interface is (L / C). Based on (R2-R0)+T+G=L / C, the time point corresponding to R2 can be determined. For example, T, G, and R0 are shown in Figure 3, and their durations can be preset values, thus yielding R2 and R3. R2 is the duration from the start of the transceiver window to the start of the reception period of the sensed signal. R3 is the duration from the start of the transceiver window to the end of the reception period of the sensed signal. Therefore, based on R3-R2=T, the reception period T of the sensed signal that causes power saturation can be determined. When designing the receiver window, the pulse signal that may cause power saturation can be directly removed from the transceiver timing during RF timing switch control. That is, the receiving channel is not opened during the time period from R2 to R3, thereby eliminating the risk of power saturation.

[0088] In some examples, as shown in Figure 7, the distance between base station A and base station B is Lab, and the distance between base station A and base station D is Lad. Taking a 4.9G sensing integrated system as an example, the pulse transmission signal power of base station A is 53dBm. At this time, the transmit antenna gain is 10dBi, the receive antenna gain is 7dBi, the saturation threshold is -42dBm, the distance between base station A and base station B is 1500m, and the distance between base station A and base station D is 3500m. Therefore, for the sensing signal (pulse signal) emitted by base station A, the receive power of the transceivers of base station B and base station D can be predicted respectively: 53+10+7-32.4-20×log(4.9)-20×log(1500)=-39.7dBm. 53+10+7-32.4-20×log(4.9)-20×log(3500)=-47.2dBm.

[0089] Compared to a saturation threshold of -42dBm, it can be seen that the pulse signal sent by base station A will cause the receiving power of base station B transceiver to saturate, but will not cause the receiving power of base station D transceiver to saturate.

[0090] Therefore, for the receive window in the current transmit / receive timing of base station B, it is necessary to design a system to remove pulse signals from base station A that could cause power saturation.

[0091] Based on (R2-R0)+T+G=L / C, and since the pulse width T is 1us, the duration of the time period G is 1.5us, the maximum sensing distance is 3000m, and R1=10us, we can obtain R2=1500m / 3×10^8=5us, and based on R3-R2=T, R3=6us. Therefore, as shown in Figure 8, by adjusting the RF receiver switch to remove the time period [R2, R3] on the receiver window, the corrected transmit and receive timing of base station B can be obtained. Accordingly, the received time period (or receiver window) obtained after removal is R={R0,R2}+{R3,R1}, that is, the received time period is divided into two segments [2.5us,5us] and [6us,10us].

[0092] Example 2: The detection results include the reception time of the sensed signal received in the current transmit / receive sequence being within the reception window and the received power not being less than the maximum tolerable power.

[0093] It should be understood that the detection result includes the case where the reception time of the sensed signal received at the current transmit / receive timing is within the reception window and the received power is not less than the maximum tolerable power, in which case the sensed signal can be understood as an interference signal.

[0094] In some embodiments, the sensing signal may be a pulse signal.

[0095] In some embodiments, the maximum tolerable power can be determined based on the transmit power of the sensed signal, the transmit antenna gain, the receive antenna gain, and the propagation path length of the sensed signal.

[0096] For example, the maximum tolerable power can be determined based on the following formula (2).

[0097] Transmit power of the sensed signal + transmit antenna gain + receive antenna gain - spatial path loss under the signal propagation path length of the frequency band = maximum tolerable power formula (2)

[0098] In some embodiments, the current transmit / receive timing is determined as the preset transmit / receive timing based on the receiving time period corresponding to the sensing signal in the receiving window.

[0099] The sampling points at the receiving location of the sensing signal are subjected to interference cancellation processing. The time-domain signal obtained by combining the interference-cancelled sensing signal with the signals other than the sensing signal received in the receiving window is then subjected to baseband analysis.

[0100] Exemplarily, as shown in FIG. 9, the sensing signals (pulse signals) sent by multiple adjacent base stations respectively fall on the timing positions corresponding to L1, L2, and L3. For example, L1 < R1, that is, the reception time period of the sensing signal falling on L1 is within the reception window, R1 < L2 < R5, and the sensing signal falling on L2 is in N2. The signal propagation path length corresponding to L3 > the target sensing signal propagation path length L0 that needs to be detected currently, so the signal coming from the propagation path of the sensing signal falling on L3 is tolerable.

[0101] It should be noted that for the sensing signal falling on L1, it will fall within the reception window of the current pulse. The large signal strength may cause the true target at this position to be missed and cause interference. The signal can be subjected to baseband digital blanking processing. The sensing signal falling on L2 is in the N2 area and will not have an impact. Moreover, for the signals falling in the T or G area of the next pulse, they will not have an impact on the receiver. The signal coming from the propagation path of the sensing signal falling on L3 will not have an impact on the reception performance of the second pulse either because L3 > L0.

[0102] In the preset transceiver timing after baseband digital blanking processing, the target signal to be received overlaps with this interference signal, that is, the target signal is submerged by the interference signal and will be affected by the interference signal. The target signal can be the sensing signal of the target to be sensed. For example, the sensing signal of the drone target to be sensed is the target signal.

[0103] Baseband digital blanking processing means performing interference cancellation processing on the sampling points at the reception position where the interference signal is located, and combining the sensed signal after interference cancellation processing and the signals other than the sensed signal in the signals received within the reception window to obtain a time-domain signal. Exemplarily, after receiving the echo with the interference pulse signal using radio frequency analog hardware, that is, actually receiving this interference signal in this example, before entering baseband parsing, at the sampling time Ts point corresponding to this echo in the reception time domain, blank out the corresponding number of points at this Ts point, fill zeros at these Ts points, and then form a complete time-domain signal, so that it can enter baseband parsing.

[0104] In this way, through the method of baseband digital blanking, it is possible to prevent the interference signal from raising the noise floor of other echo signals in the reception window, thereby avoiding the overall degradation of the sensing performance of other echo signals due to interference, reducing the noise floor of the overall baseband parsing signal, and improving the detection performance of echo signals in other time periods.

[0105] In some other embodiments, based on the reception time period corresponding to the sensing signal being within the reception window, it is also possible to adjust the transmission time of other signals at the reception position where the sensing signal is located to obtain a preset transceiver timing. The adjustment includes delaying or advancing the transmission time of other signals.

[0106] It should be understood that, based on the adjusted preset transmit and receive timing, the received echo signal will also be delayed or advanced by the same amount of time within the receive window. This ensures the echo signal is visible, avoiding overlap with interference signals and thus achieving interference cancellation and enhancing the signal quality of the target sensing signal. Therefore, to avoid missed detections, this method of dynamically adjusting the position of the transmitted signal can be used to prevent interference, provided the RF device timing supports it.

[0107] For example, as shown in Figure 10, in timing design A, the target signal 2 to be received overlaps with the interference signal, meaning the target signal 2 is submerged by the interference signal and will be affected by it. Meanwhile, the target signal 1 is in front of the interference signal and is not submerged. For example, target signal 1 and target signal 2 can be the sensing signals of the target to be sensed; for example, the sensing signal for the drone target 1 is target signal 1, and the sensing signal for the drone target 2 is target signal 2. The corrected preset transmit / receive timing can be shown in timing design B in Figure 10. The interference signal is not removed and remains in the receiving window, but the transmission time of other signals to be received can be adjusted, for example, by delaying the transmission pulse time by a certain period. This will delay the echo signal of target signal 2 in the receiving window by the same amount of time, thus revealing the echo signal of target signal 2.

[0108] In some embodiments, the integrated communication and sensing system can alternately use the uncorrected transmit / receive timing and the corrected transmit / receive timing (preset transmit / receive timing) to receive sensing signals. For example, timing design A in Figure 10 represents the uncorrected transmit / receive timing. The integrated communication and sensing system can switch the transmit / receive timing every 80 milliseconds. For instance, it may use timing design A to receive sensing signals within one 80-millisecond period, then use the preset transmit / receive timing B to receive sensing signals in the next 80-millisecond period, and then use the first transmit / receive timing A in yet another 80-millisecond period. This process is not exhaustive.

[0109] It should be noted that the integrated communication and sensing system can alternately use the original and modified transmit / receive timing sequences (preset transmit / receive timing sequences) to receive sensing signals, thus avoiding interference when using the preset transmit / receive timing sequence. For example, as shown in Figure 10, using the preset transmit / receive timing sequence, the target signal 1 may overlap with the interference signal, meaning the target signal 1 may be submerged by the interference signal and affected by it. Therefore, by alternately using the original and modified transmit / receive timing sequences (preset transmit / receive timing sequences) to receive sensing signals, the target signal 1 can be exposed, thereby reducing interference and further improving the sensing performance of the integrated communication and sensing system.

[0110] In some other embodiments, based on the fact that the receiving time period corresponding to the sensing signal is not in the receiving window, the length of the buffer time period in the current transmission and reception sequence is adjusted to obtain a preset transmission and reception sequence, so that the received power of the sensing signal received in the later receiving window in the adjacent receiving window is less than the maximum tolerable power.

[0111] In some embodiments, the length of the buffer time period in the current transmit / receive timing can be adjusted according to the receiver's pulse width, switching time period, and the length of the sensing signal propagation path to obtain a preset transmit / receive timing.

[0112] It should be noted that when the length of the buffer period N2 is 0, that is, the second pulse is transmitted immediately after the first pulse's reception window ends. This can cause the first pulse signal transmitted by the neighboring station to fall into the reception window of the second pulse due to insufficient air interface fading, thus impairing the sensing performance of the second pulse. Therefore, the value of N2 needs to be designed so that (R5+T+G) > the transmission time based on L0. For example, R5 is the end point of N2, T is the receiver's pulse width, G is the switching period, and L0 is the length of the sensing signal propagation path. Thus, when the transmission time corresponding to (R5+T+G) > L0 is satisfied, the signal strength of the pulse signal after passing through air interface L0 is sufficiently low to avoid missing the detection of the real target signal at this location.

[0113] For example, as shown in Figure 7, the distance between base station A and base station B is Lab, and the distance between base station A and base station D is Lad. Taking a 4.9G integrated communication and sensing system as an example, the maximum sensing distance required by the base station is 3000m, the base station uses a 100M signal bandwidth, and the sampling rate is 122.88M. The pulse transmission signal power of base station A is 53dBm, the transmit antenna gain is 5dBi, the receive antenna gain is 2dBi, and the maximum power that the sensing performance can tolerate is -65dBm. Assuming the distance between base station A and base station B is 1500m and the propagation time is 5us, and the distance between base station A and base station D is 7500m and the propagation time is approximately 25us.

[0114] At this point, L0 can be: Based on formula 2, we can get 53+5+2 -32.4 -20×log(4.9)-20×log(L0)=-65dBm, so L0=8709m, which corresponds to a propagation time of 29us.

[0115] Since the maximum sensing distance is 3000m, the receiving window is: LR = (3000m × 2) / speed of light C = 20us.

[0116] The pulse signal transmitted by base station A will fall into the receiving window of base station B. Therefore, base station B needs to remove this portion of the time-domain Ts points from its baseband. For example, in a system with a 30K subcarrier spacing, 1 Ts represents (1 / 122.88M)s = ~8ns, corresponding to a signal propagation distance of (1 / 122.88M)s × C = 2.44m. With a pulse width of 1us, there are theoretically 122.88 Ts points, which can be rounded down to 123 Ts. 1500m corresponds to a propagation time of 5us, and the Ts corresponding to 5us is the 614th Ts. Therefore, during the removal process, the 123 Ts points from the 614th Ts to the (614+123)th Ts are filled with zeros.

[0117] Furthermore, it is necessary to ensure that the pulse signal transmitted by base station A does not fall within the receiving window of the second pulse as much as possible. Based on the above calculations, LR = 20µs. The distance between base station A and base station D is 7500m, and the propagation time is approximately 25µs. This confirms that the signal from base station A does not fall outside the receiving window of base station D. L0 = 29µs. A reasonable value for N2 is designed so that when the signal from base station A falls within the receiving window of the second pulse of base station D, the delay has already exceeded L0, thus not affecting the receiving and detection performance of the second pulse of base station D. At this point, (T + G + N2) >= L0 - LR = 9µs. T = 1µs, G = 1.5µs, N2 >= 6.5µs. That is, N2 > 6.5µs, therefore, the pulse signal transmitted by base station A will not affect the receiving performance of the second pulse of base station D.

[0118] It should be noted that, regarding pulse interference, when a strong interfering pulse falls within the receiving window and missed detection is unavoidable, baseband digital cancellation can be used to reduce the overall baseband signal noise floor and improve the detection performance of echo signals in other time periods. However, when the interfering signal falls outside the receiving window, an additional N2 time period after the current pulse window can be added, ensuring that the current pulse signal will not fall within the receiving window of the next pulse, thus allowing the receiving window to avoid this interference.

[0119] Example 3: The detection result includes the sensing signal received in the current transmit / receive sequence as a continuous wave signal. The continuous wave signal is carried on multiple consecutive symbols, and there is a time overlap between one of the multiple consecutive symbols and the buffer time period.

[0120] In some embodiments, the end time of the transmit / receive window in the current transmit / receive sequence can be shifted forward by the duration of a buffer period to obtain a preset transmit / receive sequence.

[0121] For example, in a continuous wave signal received at a preset transmission and reception timing, the last symbol of a signal may have an overlap with the previous symbol.

[0122] It should be noted that there is a time overlap between the last symbol in a series of consecutive symbols and the buffer period, and the duration of the overlap is equal to the duration of the buffer period. In this case, the data in the last symbol that overlaps with the buffer period may be lost or may have other possible demodulation problems. Therefore, a preset transmit / receive sequence can be obtained by shifting the end time of the transmit / receive window in the current transmit / receive sequence forward by the duration of the buffer period. This avoids time overlap between the symbols of the sensing signals received based on the preset transmit / receive sequence and the buffer period, thus ensuring the sensing performance of the integrated communication and sensing system.

[0123] For example, as shown in Figure 11, a continuous wave signal comprising three OFDM symbols is used. Based on the sensing frame structure, the continuous wave signal occupies the length of three OFDM symbols, including symbols SYMBOL-1, SYMBOL-2, and SYMBOL-3. Symbol SYMBOL-3 itself is a cyclically shifted OFDM symbol, with its cyclic prefix being CP as shown in the figure below. Cyclicly shifting SYMBOL-3 by one CP length yields symbol SYMBOL-2, and cyclically shifting SYMBOL-2 by one CP length yields symbol SYMBOL-1. Therefore, the three symbols can be linked together to form a large continuous wave symbol. Similar to the characteristics of a reference signal or managed reference signal sequence (RIM sequence), any sample point of OFDM symbol length extracted from this formed large continuous wave symbol can maintain the orthogonality between subcarriers to form a complete OFDM symbol. Thus, the continuous wave symbol is a 3-symbol RIM sequence. The receive window of the third symbol (LR3) is shifted forward by a length N2 compared to the original transmission position. Furthermore, LR1 is the receive window for the first symbol, and LR2 is the receive window for the second symbol. At this point, LR2 and LR3 overlap. Although the overlap does not produce double the link gain, the remaining portion of LR3 after removing the overlap becomes a useful signal for subsequent analysis. Furthermore, symbol 3 can now be treated as a complete OFDM symbol for subsequent baseband analysis, facilitating system implementation.

[0124] Furthermore, based on the frame structure of sensing symbols, the downlink transmission symbol for communication follows the continuous wave. Since the continuous wave involves partial transmission and partial reception across channels, while the downlink symbol for communication involves transmission across all channels, the timing of the continuous wave symbol shifts from the receiving channel to the transmission channel. This RF timing switch requires a buffer time. Therefore, in the design of the continuous wave symbol, N2 needs to be greater than the buffer time for channel reception and transmission switching.

[0125] Based on the technical solution provided in this disclosure, when the sensing performance of the integrated communication and sensing system is detected to be reduced, the current transmission and reception timing of the sensing signal can be corrected, and the sensing signal can be received with the corrected transmission and reception timing. This ensures that the received sensing signal meets the system performance requirements after the transmission and reception timing is corrected, avoiding problems such as receiver power saturation, signal interference, and radio frequency timing switching caused by receiving the sensing signal, thereby improving the sensing performance of the integrated communication and sensing system.

[0126] The foregoing primarily describes the solutions provided in this disclosure from the perspective of interactions between various nodes. It is understood that each node, such as a device or apparatus, includes corresponding hardware structures and / or software modules to perform the aforementioned functions. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments disclosed herein, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0127] This disclosure embodiment can divide the communication device into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this disclosure embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0128] Figure 12 is a block diagram of a communication device 1200 according to some embodiments. As shown in Figure 12, the communication device 1200 includes a processing module 1201 and a receiving module 1202.

[0129] For example, the processing module 1201 is used to detect the sensing performance of the integrated communication and sensing system under the current transmission and reception timing based on preset correction conditions, and obtain the detection results.

[0130] The receiving module 1202 is used to receive sensing signals in a preset transmission and reception sequence when the detection result indicates that the sensing performance of the integrated communication and sensing system has decreased. The preset transmission and reception sequence is the corrected transmission and reception sequence.

[0131] In some embodiments, the transceiver timing includes a switching time period, a transceiver window, and a buffer time period. The switching time period is the time during which the transceiver switches from transmit mode to receive mode. The transceiver window is the time period for receiving and transmitting signals. The buffer time period is the time interval between transmitting and receiving two adjacent sensing signals. The preset correction condition includes at least one of the following:

[0132] When receiving a sensing signal at the current transmit / receive timing, the predicted receiving power of the transceiver is greater than or equal to the saturation threshold.

[0133] The reception time of the sensed signal received in the current transmit / receive timing is within the reception window and the received power is not less than the maximum tolerable power; the reception window is the time period of receiving the signal within the transmit / receive window;

[0134] The sensed signal received at the current transmit / receive timing is a continuous wave signal. The continuous wave signal is carried on multiple consecutive symbols. Among the multiple consecutive symbols, there is a time overlap between one symbol and the buffer time period.

[0135] In some embodiments, based on the detection result including predicting that the transceiver's received power is greater than or equal to a saturation threshold when receiving the sensing signal at the current transmission and reception sequence, before receiving the sensing signal at a preset transmission and reception sequence, the processing module 1201 is further configured to:

[0136] Determine the time period for receiving the sensing signal;

[0137] Remove the receiving time period from the receiving window of the current transmit / receive sequence to obtain the preset transmit / receive sequence.

[0138] In some embodiments, the processing module 1201 is further configured to:

[0139] Predict the received power of the sensed signal received at the current transmit / receive timing.

[0140] The received power of the transceiver is predicted based on the received power, transmit antenna gain, receive antenna gain, and the frequency band spatial path loss corresponding to the signal propagation path length.

[0141] The detection results are obtained by comparing the receiving power and saturation threshold of the transceiver.

[0142] In some embodiments, based on the detection results including the reception time of the sensing signal received in the current transmission and reception sequence being within the reception window and the reception power not being less than the tolerable maximum power, before receiving the sensing signal in the preset transmission and reception sequence, the processing module 1201 is further configured to: adjust the transmission time of other signals at the reception position of the sensing signal based on the reception time period corresponding to the sensing signal being within the reception window, to obtain the preset transmission and reception sequence, the adjustment including delaying or advancing the transmission time of other signals; or, determine the current transmission and reception sequence as the preset transmission and reception sequence.

[0143] In some embodiments, when the current transmit / receive timing is determined to be a preset transmit / receive timing, the processing module 1201 is further configured to: perform interference cancellation processing on the sampling points at the receiving location of the sensed signal;

[0144] The time-domain signal is obtained by combining the sensed signal after interference cancellation and the signals received within the receiving window other than the sensed signal. Baseband analysis is then performed on the time-domain signal.

[0145] In some embodiments, the processing module 1201 is further configured to adjust the length of the buffer time period in the current transmission and reception sequence based on the fact that the reception time period corresponding to the sensing signal is not in the reception window, so as to obtain a preset transmission and reception sequence, so that the reception power of the sensing signal received in the later reception window in the adjacent reception window is less than the maximum tolerable power.

[0146] In some embodiments, the processing module 1201 is further configured to: adjust the length of the buffer time period in the current transmit / receive timing according to the receiver's pulse width, switching time period, and the length of the sensing signal propagation path, to obtain a preset transmit / receive timing.

[0147] In some embodiments, based on the detection result including the sensing signal received at the current transmission and reception timing as a continuous wave signal, the continuous wave signal is carried on a continuous plurality of symbols, and one of the continuous plurality of symbols overlaps with a buffer time period, before receiving the sensing signal at a preset transmission and reception timing, the processing module 1201 is further configured to:

[0148] The preset transmission and reception sequence is obtained by shifting the end time of the transmission and reception window in the current transmission and reception sequence forward by the duration of the buffer period; for example, in the multiple symbols of a continuous wave signal received with the preset transmission and reception sequence, the last symbol has an overlap with the previous symbol.

[0149] For a more detailed description of the processing module 1201 and the receiving module 1202, as well as a more detailed description of their respective technical features and beneficial effects, please refer to the corresponding method embodiment section above, which will not be repeated here.

[0150] It should be noted that the modules in Figure 12 can also be called units; for example, a processing module can be called a processing unit. Furthermore, in the embodiment shown in Figure 12, the names of the modules may not be those shown in the figure; for example, a sending module or a receiving module could also be called a communication module.

[0151] If the units in Figure 12 are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this disclosure, in essence, or the parts that contribute to related technologies, or all or part of the technical solutions, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure. Storage media for storing computer software products include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0152] In the case of implementing the functions of the integrated modules described above in hardware, this disclosure provides a schematic diagram of a communication device. As shown in FIG13, the communication device 1300 includes: a processor 1302, a communication interface 1303, and a bus 1304. In some embodiments, the communication device 1300 may further include a memory 1301.

[0153] Processor 1302 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with this disclosure. Processor 1302 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, or hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with this disclosure. Processor 1302 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a digital signal processor (DSP) and a microprocessor, etc.

[0154] The communication interface 1303 is used to connect with other devices via a communication network. This communication network can be Ethernet, a wireless access network, or a wireless local area network (WLAN), etc.

[0155] The memory 1301 may be a read-only memory (ROM), other type of static storage device capable of storing static information and instructions, random access memory (RAM), or other type of dynamic storage device capable of storing information and instructions. It may also be an electrically erasable programmable read-only memory (EEPROM), a disk storage medium, or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0156] In some embodiments, the memory 1301 may exist independently of the processor 1302. The memory 1301 may be connected to the processor 1302 via a bus 1304 and may be used to store instructions or program code. When the processor 1302 calls and executes the instructions or program code stored in the memory 1301, it may implement the methods provided in the embodiments of this disclosure.

[0157] In other embodiments, the memory 1301 may also be integrated with the processor 1302.

[0158] Bus 1304 can be an extended industry standard architecture (EISA) bus, etc. Bus 1304 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 13, but this does not mean that there is only one bus or one type of bus.

[0159] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the equipment or device can be divided into different functional modules to complete all or part of the functions described above.

[0160] This disclosure also provides a computer-readable storage medium (e.g., a non-transient computer-readable storage medium). All or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware. The program can be stored in the aforementioned computer-readable storage medium, and when executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be any of the foregoing embodiments or memory. The aforementioned computer-readable storage medium can also be an external storage device of the aforementioned device or apparatus, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, or flash card equipped on the aforementioned device or apparatus. In some embodiments, the aforementioned computer-readable storage medium can also include both internal storage units of the aforementioned device or apparatus and external storage devices. The aforementioned computer-readable storage medium is used to store the aforementioned computer program and other programs and data required by the aforementioned device or apparatus. The aforementioned computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0161] This disclosure also provides a computer program product comprising a computer program that, when run on a computer, causes the computer to perform the methods provided in the above embodiments.

[0162] Although this disclosure has been described herein in conjunction with various embodiments, those skilled in the art will understand and implement other variations of the disclosed embodiments by reviewing the accompanying drawings, the disclosure, and the appended claims in carrying out the claimed disclosure. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce a good effect.

[0163] Although this disclosure has been described in conjunction with its features and embodiments, it will be apparent that various modifications and combinations can be made thereto without departing from the spirit and scope of this disclosure. Accordingly, this specification and drawings are merely exemplary illustrations of the disclosure as defined by the appended claims and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this disclosure. It is obvious that those skilled in the art can make various alterations and modifications to this disclosure without departing from its spirit and scope. Thus, this disclosure is also intended to include any such modifications and modifications that fall within the scope of the claims of this disclosure and their equivalents.

[0164] The above description is merely an embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method for receiving a sensing signal, comprising: Based on preset correction conditions, the sensing performance of the integrated communication and sensing system under the current transmission and reception timing is detected, and the detection results are obtained. as well as When the detection result indicates that the sensing performance of the integrated communication and sensing system has decreased, the sensing signal is received with a preset transmission and reception sequence, which is a corrected transmission and reception sequence.

2. The method according to claim 1, wherein, The transceiver timing includes a switching time period, a transceiver window, and a buffer time period. The switching time period is the time during which the receiver switches to transmit mode. The transceiver window is the time period for receiving and transmitting signals. The buffer time period is the time interval between transmitting and receiving two adjacent sensing signals. The preset correction condition includes at least one of the following: When receiving a sensing signal at the current transmit / receive timing, the transceiver's receiving power is predicted to be greater than or equal to the saturation threshold. The received signal of the sensed signal is received within the receiving window and the received power is not less than the maximum tolerable power, provided that the receiving time is within the current transmit / receive timing. The receiving window is the time period in the transmit / receive window during which the signal is received. or The sensed signal received in the current transmit / receive timing is a continuous wave signal, which is carried on a series of consecutive symbols. Among the series of consecutive symbols, there is a symbol that overlaps with the buffer time period.

3. The method according to claim 2, wherein, Based on the detection results, including predicting that the transceiver's receiving power is greater than or equal to a saturation threshold when receiving the sensing signal at the current transceiver timing, the method further includes, before receiving the sensing signal at the preset transceiver timing: Determine the reception time period for receiving the sensing signal; and The preset transmission and reception sequence is obtained by removing the receiving time period from the receiving window of the current transmission and reception sequence.

4. The method according to claim 3, wherein, The method of detecting the sensing performance of the integrated communication and sensing system under the current transmission and reception timing based on preset correction conditions, and obtaining the detection results, includes: Predict the received power of the sensed signal received at the current transmit / receive timing. Based on the received power, transmit antenna gain, receive antenna gain, and the frequency band spatial path loss corresponding to the signal propagation path length, the predicted received power of the transceiver is obtained; and The detection result is obtained by comparing the predicted receiving power of the transceiver with the saturation threshold.

5. The method according to claim 2, wherein, Based on the detection results, including that the reception time of the sensing signal received in the current transmission and reception sequence is within the reception window and the reception power is not less than the tolerable maximum power, before receiving the sensing signal in the preset transmission and reception sequence, the method further includes: Based on the reception time period corresponding to the sensing signal within the reception window, the transmission times of other signals at the reception location of the sensing signal are adjusted to obtain the preset transmission and reception sequence. The adjustment includes delaying or advancing the transmission times of the other signals; or... The current transmit / receive timing is determined as the preset transmit / receive timing.

6. The method according to claim 5, wherein, When the current transmit / receive timing is determined to be the preset transmit / receive timing, the method further includes: The sampling points at the receiving location of the sensed signal are subjected to interference cancellation processing; and The time-domain signal obtained by combining the sensed signal after interference cancellation processing and the signals received in the receiving window other than the sensed signal is then subjected to baseband analysis.

7. The method according to claim 5, further comprising: Since the receiving time period corresponding to the sensing signal is not in the receiving window, the length of the buffer time period in the current transmission and reception sequence is adjusted to obtain the preset transmission and reception sequence, so that the received power of the sensing signal received in the later receiving window in the adjacent receiving window is less than the maximum tolerable power.

8. The method according to claim 7, wherein, Adjusting the length of the buffer time period in the current transmit / receive timing sequence to obtain the preset transmit / receive timing sequence includes: The length of the buffer time period in the current transmit / receive sequence is adjusted based on the receiver's pulse width, the switching time period, and the propagation path length of the sensed signal to obtain the preset transmit / receive sequence.

9. The method according to claim 2, wherein, Based on the detection result, including the sensing signal received at the current transmission and reception timing as a continuous wave signal, the continuous wave signal being carried on a series of consecutive symbols, wherein one of the consecutive symbols overlaps with a buffer time period, the method further includes, before receiving the sensing signal at a preset transmission and reception timing: The preset transceiver sequence is obtained by shifting the end time of the transceiver window in the current transceiver sequence forward by the duration of a buffer period; wherein, in the multiple symbols of the continuous wave signal received according to the preset transceiver sequence, the last symbol has an overlapping portion with the previous symbol.

10. A communication device, comprising: Memory and processor; The memory and the processor are coupled; The memory is configured to store instructions executable by the processor; When the processor executes the instructions, it performs the method according to any one of claims 1 to 9.

11. A computer-readable storage medium, wherein, The computer-readable storage medium stores computer instructions that, when executed on a processor, cause the processor to perform the method according to any one of claims 1 to 9.

12. A computer program product, wherein, The computer program product includes a computer program that, when run on a computer, causes the computer to perform the method according to any one of claims 1 to 9.

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