Perception signal receiving method and device, storage medium and program product

Abstract

The embodiment of the invention provides a sensing signal receiving method and device, a storage medium and a program product, relates to the technical field of communication, and is used for improving the sensing performance of a communication and sensing integrated system. The method comprises the following steps: detecting the sensing performance of the communication sensing integrated system under a current transceiving time sequence based on a preset correction condition to obtain a detection result; and under the condition that the detection result indicates that the perception performance of the communication perception integrated system is reduced, receiving the perception signal according to the corrected first transceiving time sequence.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, apparatus, storage medium, and program product for receiving sensing signals. Background Technology

[0002] Integrated sensing and communication (ISAC), also known as integrated communication and sensing, refers to a new information processing technology that achieves coordinated sensing and communication functions based on shared hardware and software resources or information sharing. This effectively improves spectrum efficiency, hardware efficiency, and information processing efficiency. Consequently, it better meets the transmission needs of ultra-high-speed applications such as intelligent interaction, autonomous driving, sensor interconnection, and holographic communication, providing users with diverse intelligent services.

[0003] 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. Summary of the Invention

[0004] This disclosure provides a method, apparatus, storage medium, and program product for receiving sensing signals, which can improve the sensing performance of an integrated communication and sensing system.

[0005] In a first aspect, this disclosure provides a method for receiving a sensing signal, 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 in the first transmit / receive timing sequence, which is the corrected transmit / receive timing sequence.

[0008] Secondly, this disclosure provides a communication device, the device comprising:

[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 to obtain the detection results;

[0010] The receiving module is used to receive the sensing signal in a first transmit / receive timing sequence when the detection result indicates that the sensing performance of the integrated communication and sensing system has decreased. The first transmit / receive timing sequence is the corrected transmit / receive timing sequence.

[0011] Thirdly, this disclosure also provides a communication device, comprising: a memory and a processor; the memory and the processor being coupled; the memory being used to store processor-executable instructions; and the processor executing any of the methods provided in the first aspect 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 any of the methods provided in the first aspect.

[0013] Fifthly, this disclosure provides a computer program product containing computer instructions that, when executed on a computer, cause the computer to perform any of the methods provided in the first aspect above.

[0014] 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 transmission and reception timing of the current 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 and avoids problems such as receiver power saturation, signal interference, and radio frequency timing switching caused by receiving sensing signals, thereby improving the sensing performance of the integrated communication and sensing system. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of a network architecture integrating communication and sensing provided in an embodiment of the present disclosure;

[0017] Figure 2 A flowchart illustrating a method for receiving a sensing signal provided in an embodiment of this disclosure;

[0018] Figure 3 A schematic diagram of a transmit / receive timing provided for an embodiment of this disclosure;

[0019] Figure 4 A schematic diagram illustrating another transceiver timing provided in an embodiment of this disclosure;

[0020] Figure 5 A schematic diagram of a continuous wave signal provided in an embodiment of this disclosure;

[0021] Figure 6 A schematic diagram illustrating yet another transceiver timing provided in an embodiment of this disclosure;

[0022] Figure 7 A schematic diagram of a signal propagation path provided in an embodiment of this disclosure;

[0023] Figure 8 A schematic diagram illustrating yet another transceiver timing provided in an embodiment of this disclosure;

[0024] Figure 9 A schematic diagram illustrating yet another transceiver timing provided in an embodiment of this disclosure;

[0025] Figure 10 A schematic diagram illustrating yet another transceiver timing provided in an embodiment of this disclosure;

[0026] Figure 11 A schematic diagram of another continuous wave signal provided in an embodiment of this disclosure;

[0027] Figure 12 This is a schematic diagram of the composition of a communication device provided in an embodiment of the present disclosure;

[0028] Figure 13 This is a schematic diagram of the structure of a communication device provided in an embodiment of this disclosure. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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 various sectors. In this process, communication-sensing fusion technology, as an important evolution direction of 5G-Advanced, has expanded its application scenarios from low-altitude areas to more extensive waterway and maritime scenarios. However, the networking process of integrated communication-sensing signals has encountered other problems different from those in the networking process of traditional communication signals. For example, unlike time-division duplex (TDD) communication signals, which do not receive signals while transmitting, even with high transmission power, the receiver almost never experiences power saturation and reserves sufficient uplink / downlink switching time, thus not affecting signal reception. For sensing signals, taking pulse signals as an example, since the transmission time of pulse signals is very short and most of the time is spent receiving them, when multiple stations transmit pulse signals, a kind of full-duplex transmission and reception system will be formed depending on the different transmission paths of the signals between stations. This kind of full-duplex system may receive simultaneously while transmitting. When the transmission power is relatively high, the receiver may experience power saturation problems.

[0035] 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.

[0036] Among them, the power saturation problem refers to the issue that excessive transmission power of the sensing signal may lead to receiver saturation.

[0037] Interference refers to the problem that when multiple stations send pulse signals simultaneously, the signals may overlap with the sensing signal that needs to be received in time due to the different transmission paths between stations, which may cause interference to the sensing signal.

[0038] Among them, the radio frequency timing switching problem mainly occurs in the process of alternating transmission and reception. Since the same radio frequency channel is used for transmission and reception, timing switching is required between transmission and reception, which may cause conflicts and interference between transmission and reception signals, signal loss or decoding errors, etc.

[0039] In view of this, the present disclosure provides a method for receiving sensing signals, which can correct the transmission and reception timing of the current 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 corrected received sensing signals meet the system requirements and improve the sensing performance of the integrated communication and sensing system.

[0040] like Figure 1 A schematic diagram of a communication-aware integrated network architecture is shown. Figure 1 As shown, the integrated communication and sensing network architecture includes core network elements such as application function (AF) and sensing function (SF). In addition, it may also include a baseband unit (BBU) and an active antenna unit (AAU).

[0041] The number of Application Controllers (AFs) can be one or more. The information of each AF can include real-time values ​​of its network parameters. These network parameters may include, for example, 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, load, and idle state. The data transmission channel type may include, for example, one or more of video, voice, and file transmission. In this embodiment, the AF can also be understood as a presentation platform for sensing tasks, used to handle communication sensing tasks related to the application layer, such as data collection, processing, and analysis.

[0042] SF can be understood as a sensing independent network element, used to provide transmission gateway, sensing service control, data aggregation and forwarding, etc. For example, it can receive at least one of the information from AF and sensing data, process it, and thus determine the sensing information.

[0043] 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. The baseband board handles communication baseband processing and forwards sensing data to the sensing board. The main control board handles traditional cell management and sensing data transmission. The sensing board handles sensing signal processing and sensing data processing; in some embodiments, it can also output structured sensing target results.

[0044] 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.

[0045] In addition, such as Figure 1 As shown, the perceived target can be any kind of object that can be perceived, such as mountains, forests or buildings, as well as vehicles, pedestrians, boats on rivers, low-altitude drones, and ships at sea.

[0046] Therefore, the sensing signal received in the integrated communication and sensing system can be the signal obtained by detecting and identifying the target being sensed. 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.

[0047] 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 3GPP subsequent evolution base station, an access node in a WiFi system, a wireless relay node, a wireless backhaul node, etc. Furthermore, the sensing mode of the base station in this disclosure can be a self-transmitting and self-receiving mode or a cooperative sensing mode.

[0048] It should be understood that Figure 1 This is merely an exemplary architecture diagram. Figure 1 The number of devices or network elements shown is unlimited. Furthermore, except... Figure 1 In addition to the devices or network elements shown, other devices or network elements may also be included, without limitation.

[0049] The embodiments provided in this disclosure will now be described in detail with reference to the accompanying drawings.

[0050] Figure 2 This is a schematic flowchart illustrating a method for receiving a sensing signal according to an embodiment of this disclosure. Figure 2 As shown, this disclosure provides a method for receiving a sensing signal, the method comprising:

[0051] S101. 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.

[0052] 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 adjacent transceiver windows.

[0053] The duration unit of each time period in this transmit / receive timing sequence can be microseconds (µs).

[0054] In one example, when the sensed signal is a pulse signal, such as Figure 3 As shown, the transmit / receive timing can include a switching time period N1, a transmit / receive window LR1, and a buffer time period N2.

[0055] 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).

[0056] The transceiver window LR1, also known as the pulse window, can be divided into 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 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 reception window.

[0057] 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 R. Starting with LR1, the time corresponding to R0 includes the time from the start boundary point of LR to the start point of R. R1 represents the end point of R. Starting with LR1, the time corresponding to R1 includes the time from the start boundary point of LR1 to the receiving point of R.

[0058] In another example, when the sensed signal is a continuous wave signal, such as Figure 4 As shown, the transmit / receive timing can also include a switching time period N1, a transmit / receive window LR2, and a buffer time period N2.

[0059] The relevant descriptions of the switching time period N1 and the buffer time period N2 can be found in [reference]. Figure 3 As described above, I will not repeat it here. Figure 3 The difference in the transmit and receive timings shown is that Figure 4 The LR2 transceiver window can be called a continuous wave window, which can 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.

[0060] 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.

[0061] The aforementioned saturation threshold refers to the receiving power saturation threshold of the transceiver, meaning 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 RF's power control of the receiving channel, potentially causing signal distortion throughout the receiving window and thus degrading the sensing performance of the integrated communication and sensing system. The maximum tolerable power refers to the maximum power of pulse interference signals that the integrated communication and sensing system can tolerate under 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 used in 5G-NR communication. In the integrated communication and sensing system, communication and sensing coexist, and symbol boundaries need to be aligned. Therefore, communication and sensing can share a single symbol length concept for easier overall system implementation.

[0062] In some embodiments, if at least one of the preset correction conditions is met, the obtained detection result indicates a reduction in the sensing performance of the integrated communication and sensing system.

[0063] In one example, if the detection result includes a prediction that the transceiver's received power is greater than or equal to a saturation threshold when receiving a 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 a 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 a sensing signal at the current transmit / receive timing, then the current transmit / receive timing does not need to be corrected.

[0064] 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, as long as the signal is within the receiving frequency band, it will be received at the RF analog terminal. Therefore, the different frequency networking method can still cause power saturation issues. Pulse signals have relatively high transmission power, and signals from adjacent stations can directly cause receiver saturation. Whether it's 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 causing 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.

[0065] In another example, if the detection result includes the fact that the reception time of the sensing signal received in the current transmit / receive sequence 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, and thus the current transmit / receive sequence needs to be corrected. In other words, the detection result indicates that the sensing performance of the integrated communication and sensing system has deteriorated.

[0066] 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:

[0067] 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.

[0068] The reception time of the sensed signal received in the current transmit / receive sequence is included in the switching time period;

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

[0070] 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, even for distant base stations, the transmitting 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 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.

[0071] In another example, the detection result uses the sensed signal received in the current transmit / receive timing as a continuous wave signal, which is carried on multiple consecutive symbols. One of these symbols overlaps with a buffer time period. This overlap can lead to data loss or incorrect demodulation of the sensed signal during that overlapping period, thus indicating a degraded sensing performance of the integrated communication and sensing system. Conversely, the current transmit / receive timing does not require correction.

[0072] 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 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 resource of one symbol. For example... Figure 5 As shown, the continuous wave signal consists of three symbols: SYMBOL-1, SYMBOL-2, and SYMBOL-3. Some time-domain resources in the last symbol overlap with the N2 time period, resulting in the loss of signal data of length N2 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.

[0073] S102. When the detection result indicates that the sensing performance of the integrated communication and sensing system has decreased, the sensing signal is received in the first transmit / receive sequence.

[0074] The first transmit / receive timing sequence is the corrected transmit / receive timing sequence. The first transmit / receive timing sequence is the transmit / receive timing sequence used by the communication sensing system to transmit and receive sensing signals, which can be the transmit / receive timing sequence obtained after correcting the current transmit / receive timing sequence.

[0075] For example, if the detection result corresponding to the current transmit / receive timing indicates a decrease in the sensing performance of the integrated communication and sensing system, the current transmit / receive timing can be corrected to obtain the corrected transmit / receive timing, i.e., the first transmit / receive timing. The first 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 first transmit / receive timing may not be equal to the current transmit / receive timing.

[0076] Furthermore, upon obtaining the first transmit / receive timing sequence, the integrated sensing system can receive sensing signals using this sequence. Specifically, the sensing performance of the integrated communication and sensing system under the first transmit / receive timing sequence is improved compared to the performance under the previous transmit / receive timing sequence (the current transmit / receive timing sequence), thus meeting the sensing performance requirements.

[0077] For the first transmit / receive timing sequence, the sensing performance of the integrated communication and sensing system under the first transmit / receive 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 first transmit / receive timing sequence does not meet any of the following: 1') When receiving the sensing signal under the first transmit / receive 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 first transmit / receive 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 first transmit / receive 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 decreased and no correction is required.

[0078] In some embodiments, if the sensed signal received at the current transceiver 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, the current transceiver timing needs to be corrected to obtain a first transceiver timing. For each preset correction condition, the detection result has at least the following possible examples, and the process of correcting the transceiver timing under each example is described below:

[0079] 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.

[0080] In some embodiments, the sensing signal may be a pulse signal.

[0081] In some embodiments, the received power of the sensed signal received at the current transmit / receive timing can be predicted. Then, based on this 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 is obtained. The predicted received power of the transceiver is then compared with a saturation threshold to obtain the detection result.

[0082] 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:

[0083] 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)

[0084] 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 receiving 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 the first transceiver timing sequence is obtained.

[0085] For example, such as Figure 6 As shown, the distance between the transmitting and receiving ends can be used to determine the position of the sensing signal within the receiving window of the receiving base station, 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. This yields the first transmit / receive timing sequence. Based on this first transmit / receive timing sequence, sensing signals that could trigger power saturation can be avoided, thus preventing the problem of receiving power saturation and improving the sensing performance of the integrated sensing system.

[0086] The distance between the receiver and the transmitter is L, and the speed of light is C. Therefore, the time delay of the signal propagating through the air interface between the receiver and the transmitter is (L / C). Based on (R2-R0)+T+G=L / C, the time point corresponding to R2 can be determined. Where T, G, and R0 are as follows... Figure 3As shown, its duration can be a preset value. Thus, R2 and R3 can be obtained. R2 is the duration from the start point of the transmit / receive window to the start point of the reception period of the sensed signal. R3 is the duration from the start point of the transmit / receive window to the end point 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 reception window, the pulse signal that may cause power saturation can be directly removed from the transmit / receive timing during RF timing switch control. That is, the reception channel is not opened during the time period from R2 to R3, thereby eliminating the risk of power saturation.

[0087] In one example, such as Figure 7 As shown, 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 sensing system as an example, the pulse transmission signal power of base station A is 53dBm, the transmit antenna gain is 10dBi, the receive antenna gain is 7dBi, the saturation threshold is -42dBm, the distance between base stations A and B is 1500m, and the distance between base station A and base station D is 3500m. Therefore, for the sensing signal (pulse signal) transmitted by base station A, the receive power of the transceivers of base stations B and D can be predicted respectively.

[0088] 53+10+7 -32.4 -20*log(4.9)-20*log(1500)=-39.7dBm.

[0089] 53+10+7 -32.4 -20*log(4.9)-20*log(3500)=-47.2dBm.

[0090] 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.

[0091] 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.

[0092] Based on (R2-R0)+T+G=L / C, and since the pulse width T is 1µs, the duration of the time interval G is 1.5µs, the maximum sensing distance is 3000m, and R1=10µs, we can obtain R2=1500m / 3*10^8=5µs, and based on R3-R2=T, R3=6µs. Therefore, as... Figure 8 As shown, the corrected transmit / receive timing of base station B can be obtained by adjusting the RF receive switch to remove the time periods [R2, R3] from the receive window. Correspondingly, the received time period (or receive window) R obtained after removal is:

[0093] {R0, R2} + {R3, R1}, that is, the receiving time period is divided into two segments: [2.5 us, 5 us] and [6 us, 10 us].

[0094] Example 2: The detection result includes that the receiving time of the sensed signal received in the current transceiver timing is within the receiving window and the received power is not less than the tolerable maximum power.

[0095] It should be understood that when the detection result includes that the receiving time of the sensed signal received in the current transceiver timing is within the receiving window and the received power is not less than the tolerable maximum power, this sensed signal can be understood as an interference signal.

[0096] In some embodiments, the sensed signal can be a pulse signal.

[0097] In some embodiments, the tolerable maximum power can be determined according to the transmission power of the sensed signal, the transmitting antenna gain, the receiving antenna gain, and the propagation path length of the sensed signal.

[0098] Exemplarily, the tolerable maximum power can be determined based on the following formula (2).

[0099] Transmission power of the sensed signal + transmitting antenna gain + receiving antenna gain - space path loss at the signal propagation path length of the frequency band = tolerable maximum power Formula (2)

[0100] In a possible implementation manner, based on the receiving time period corresponding to the sensed signal being within the receiving window, the current transceiver timing is determined as the first transceiver timing.

[0101] Perform interference cancellation processing on the sampling points at the receiving position of the sensed signal, and perform baseband parsing on the time-domain signal obtained by combining the interference-cancelled sensed signal and the signals other than the sensed signal received within the receiving window.

[0102] Exemplarily, as Figure 9 shown, the sensed signals (pulse signals) sent by multiple adjacent base stations respectively fall on the timing positions corresponding to L1, L2, and L3. Among them, L1 < R1, that is, the receiving time period of the sensed signal falling on L1 is within the receiving window, R1 < L2 < R5, and the sensed signal falling on L2 is in N2. The signal propagation path length corresponding to L3 > the propagation path length L0 of the target sensed signal to be detected currently, so the signal coming from the propagation path of the sensed signal falling on L3 is tolerable.

[0103] It should be noted that sensing signals falling within L1 will fall within the receiving window of the current pulse. The strong signal strength may cause real targets at this location to be missed, resulting in interference. Baseband digital filtering can be performed on this signal. Sensing signals falling within L2 will not have an impact in the N2 region, and signals falling within the T or G regions of the next pulse will not affect the receiver. Sensing signals falling within L3 will not affect the receiving performance of the second pulse because L3 > L0.

[0104] In the first transmit / receive sequence after baseband digital removal processing, the target signal to be received overlaps with the interference signal, meaning the target signal is overwhelmed by the interference signal and will be affected by it. 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.

[0105] The baseband digital removal process involves canceling the interference at the sampling points where the interference signal is located, and then combining the canceled sensing signal with the signals received within the receiving window (excluding the sensing signal) to obtain the time-domain signal. For example, RF analog hardware can be used to receive the echo containing the interference pulse signal, i.e., in this example, the interference signal is actually received. Before entering baseband analysis, at the sampling time Ts point corresponding to the echo in the received time domain, the corresponding number of points at Ts is removed, and these Ts points are filled with zeros before being reconstructed into a complete time-domain signal, which can then be used for baseband analysis.

[0106] In this way, by using baseband digital removal, we can prevent interference signals from raising the noise floor of other echo signals in the receiving window, thereby avoiding the overall decline in the sensing performance of other echo signals due to interference, reducing the overall noise floor of the baseband resolved signal, and improving the detection performance of echo signals in other time periods.

[0107] In another possible implementation, based on the receiving time period corresponding to the sensing signal within the receiving window, the transmission time of other signals at the receiving position of the sensing signal can also be adjusted to obtain the first transmission and reception sequence. The adjustment includes delaying or advancing the transmission time of other signals.

[0108] It should be understood that, based on the adjusted first transmit / receive timing, the received echo signal will also be delayed or advanced by the same time within the receiving window. This ensures the echo signal is visible, avoiding overlap with interfering signals, 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 avoid interference, provided the RF device timing supports it.

[0109] For example, such as Figure 10 As shown, in timing design A, the target signal 2 to be received overlaps with the interference signal, meaning target signal 2 is overwhelmed by the interference signal and will be affected by it. Furthermore, target signal 1 is in front of the interference signal and is not overwhelmed. For example, target signal 1 and target signal 2 can be the sensing signals of the targets to be sensed; for instance, 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 first transmit / receive timing sequence can be as follows: Figure 10 As shown in timing design B, the interference signal is not removed and is still in the receiving window. However, the transmission time of other signals that need to be received can be adjusted. For example, the transmission pulse time can be delayed by a certain period of time. As a result, the echo signal of target signal 2 will also be delayed by the same time in the receiving window, and the echo signal of target signal 2 will be revealed.

[0110] In some embodiments, the integrated communication and sensing system may alternately use the uncorrected transmit / receive timing sequence and the corrected transmit / receive timing sequence (first transmit / receive timing sequence) to receive sensing signals. For example, Figure 10 The timing design A in the text refers to the transmit and receive timing before the correction. For example, the communication and sensing integrated system can switch the transmit and receive timing every 80 milliseconds. For instance, it can use timing design A to receive sensing signals in one 80 millisecond, and then use the first transmit and receive timing B to receive sensing signals in the next 80 millisecond, and then use the first transmit and receive timing A to receive sensing signals in another 80 millisecond. This will not be listed one by one.

[0111] It should be noted that the integrated communication and sensing system can alternately use the original and modified transmit / receive timing sequences (the first transmit / receive timing sequence) to receive sensing signals, thus avoiding interference when using the first transmit / receive timing sequence. For example... Figure 10 As shown, when using the first transmit / receive timing sequence, the target signal 1 and the interference signal may overlap, meaning that the target signal 1 is submerged by the interference signal and will be affected by the interference signal. Therefore, the transmit / receive timing sequence before correction and the transmit / receive timing sequence after correction (the first transmit / receive timing sequence) can be used alternately to receive the sensing signal, so that the target signal 1 is exposed, thereby reducing interference and further improving the sensing performance of the integrated communication and sensing system.

[0112] In another possible implementation, 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 transmit / receive timing is adjusted to obtain the first transmit / receive timing, 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.

[0113] 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 first transmit / receive timing.

[0114] It should be noted that when the buffer period N2 length 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. Here, 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.

[0115] For example, such as Figure 7 As shown, 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 a sampling rate of 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 stations A and B is 1500m and the propagation time is 5us, and the distance between base stations A and D is 7500m and the propagation time is approximately 25us.

[0116] 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.

[0117] Since the maximum sensing distance is 3000m, the receiving window is: LR = (3000m * 2) / speed of light C = 20us.

[0118] In this system, 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 are rounded up to 123 Ts.

[0119] 1500m corresponds to a propagation time of 5us. The Ts corresponding to 5us is the 614th Ts. Therefore, when removing Ts, we can fill all 123 Ts from the 614th Ts to the (614+123)th Ts with zeros.

[0120] 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 stations A and D is 7500m, and the propagation time is approximately 25µs. It can be determined that the signal from base station A does not fall outside the receiving window of base station D, L0 = 29. 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.

[0121] N2 >= 6.5µs. That is, N2 > 6.5µs, so the pulse signal sent by base station A will not affect the reception performance of the second pulse of base station D.

[0122] 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.

[0123] 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.

[0124] 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 the first transmit / receive sequence.

[0125] Among the multiple symbols of the continuous wave signal received in the first transmit / receive timing sequence, the last symbol overlaps with the previous symbol.

[0126] 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, the first transmit / receive timing can be obtained by shifting the end time of the transmit / receive window in the current transmit / receive timing forward by the duration of the buffer period. This avoids the time overlap between the symbols of the sensing signal received based on the first transmit / receive timing and the buffer period, thus ensuring the sensing performance of the integrated communication and sensing system.

[0127] For example, such as Figure 11 As shown, taking a continuous wave signal containing three OFDM symbols as an example, 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 diagram 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 management reference signal sequence (RIM), any sample point of OFDM symbol length extracted from this large continuous wave symbol can maintain the orthogonality between subcarriers and form a complete OFDM symbol. Thus, the continuous wave symbol is a 3-symbol RIM sequence. The receiving window (LR3) of the third symbol is shifted forward by N2 lengths compared to the original transmission position. Furthermore, L1 is the receiving window for the first symbol, and L2 is the receiving window for the second symbol. At this point, LR2 and LR3 overlap. Although the overlapping part does not produce double the link gain, the remaining part of LR3 after removing the overlapping part becomes a useful signal for subsequent analysis. Furthermore, symbol 3 can be analyzed as a complete OFDM symbol for subsequent baseband analysis, which facilitates system implementation.

[0128] 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.

[0129] 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 transmission and reception timing of the current 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 and avoids problems such as receiver power saturation, signal interference, and radio frequency timing switching caused by receiving sensing signals, thereby improving the sensing performance of the integrated communication and sensing system.

[0130] 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.

[0131] 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.

[0132] Figure 12 The diagram shown is a schematic representation of the composition of a communication device 1200 provided in an embodiment of this disclosure. Figure 12 As shown, the communication device 1200 includes a processing module 1201 and a receiving module 1202.

[0133] 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.

[0134] The receiving module 1202 is used to receive the sensing signal in a first transmit / receive timing sequence when the detection result indicates that the sensing performance of the integrated communication and sensing system has decreased. The first transmit / receive timing sequence is a corrected transmit / receive timing sequence.

[0135] 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:

[0136] 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.

[0137] 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;

[0138] 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.

[0139] In some embodiments, based on the detection result 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, before receiving the sensing signal at the first transceiver timing, the processing module 1201 is further configured to:

[0140] Determine the time period for receiving the sensing signal;

[0141] Remove the receiving time segment from the receiving window of the current transmit / receive sequence to obtain the first transmit / receive sequence.

[0142] In some embodiments, the processing module 1201 is specifically used for:

[0143] Predict the received power of the sensed signal received at the current transmit / receive timing.

[0144] 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.

[0145] The detection results are obtained by comparing the receiving power and saturation threshold of the transceiver.

[0146] 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 less than the tolerable maximum power, before receiving the sensing signal in the first 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 in the reception window, to obtain the first 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 first transmission and reception sequence.

[0147] In some embodiments, when the current transceiver timing is determined as the first transceiver 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;

[0148] 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.

[0149] In some embodiments, the processing module 1201 is further configured to adjust the length of the buffer time period in the current transceiver timing based on the fact that the receiving time period corresponding to the sensing signal is not in the receiving window, to obtain a first transceiver timing, 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.

[0150] In some embodiments, the processing module 1201 is specifically used 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 first transmit / receive timing.

[0151] In some embodiments, based on the detection result including the sensing signal received at the current transmit / receive timing as a continuous wave signal, the continuous wave signal being carried on a continuous plurality of symbols, wherein one of the continuous plurality of symbols overlaps with a buffer time period, before receiving the sensing signal at the first transmit / receive timing, the processing module 1201 is further configured to:

[0152] The first transmit / receive timing sequence is obtained by shifting the end time of the transmit / receive window in the current transmit / receive timing sequence forward by the duration of the buffer period; wherein, among the multiple symbols of the continuous wave signal received in the first transmit / receive timing sequence, the last symbol has an overlap with the previous symbol.

[0153] 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.

[0154] It should be noted that, Figure 12 Modules in a module can also be called units; for example, a processing module can be called a processing unit. Additionally, in... Figure 12 In the embodiments shown, the names of the modules may not be the same as those shown in the figures. For example, the sending module or receiving module may also be called the communication module.

[0155] Figure 12If the various units in the present disclosure 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 the prior art, 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.

[0156] In the case where the functions of the integrated modules described above are implemented in hardware, this disclosure provides a schematic diagram of the structure of a communication device. For example... Figure 13 As shown, the communication device 1300 includes: a processor 1302, a communication interface 1303, and a bus 1304. Optionally, the communication device 1300 may also include a memory 1301.

[0157] 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, 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 of functions implementing computation, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0158] The communication interface 1303 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0159] The memory 1301 may be a read-only memory (ROM) or 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, or electrically erasable programmable read-only memory (EEPROM), 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.

[0160] As one possible implementation, the memory 1301 can exist independently of the processor 1302. The memory 1301 can be connected to the processor 1302 via a bus 1304 and is 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 can implement the methods provided by the embodiments of this disclosure.

[0161] In another possible implementation, the memory 1301 can also be integrated with the processor 1302.

[0162] The 1304 bus can be an extended industry standard architecture (EISA) bus, etc. The 1304 bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 13 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0163] 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.

[0164] This disclosure also provides a 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 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 computer-readable storage medium can also be an external storage device for the above-described device or apparatus, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the above-described device or apparatus. Further, the computer-readable storage medium can include both internal storage units and external storage devices of the above-described device or apparatus. The computer-readable storage medium is used to store the above-described computer program and other programs and data required by the above-described device or apparatus. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0165] Embodiments of this disclosure also provide a computer program product comprising a computer program that, when run on a computer, causes the computer to perform any of the methods provided in the above embodiments.

[0166] Although this disclosure has been described herein in conjunction with various embodiments, other variations of the disclosed embodiments will be understood and implemented by those skilled in the art through review of the accompanying drawings, the disclosure, and the appended claims in carrying out the claimed disclosure. In the claims, "comprising"

[0167] The term "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple components. A single processor or other unit can perform several functions listed in the claims. Although different dependent claims may describe certain measures, this does not mean that these measures cannot be combined to produce a good effect.

[0168] Although this disclosure has been described in conjunction with specific features and embodiments, it will be apparent that various modifications and combinations can be made therein 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.

[0169] The above description is merely a specific 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, characterized in that, The method includes: 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. If the detection result indicates that the sensing performance of the integrated communication and sensing system has decreased, the sensing signal is received in a first transmit / receive timing sequence, which is a corrected transmit / receive timing sequence.

2. The method according to claim 1, characterized in that, 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 receiving and transmitting 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 predicted receiving power of the transceiver is greater than or equal to the saturation threshold. The received signal of the sensing signal is received within the receiving window and the received power is not less than the maximum tolerable power, with the receiving window being the time period in the receiving window for receiving the signal. The sensed signal received in the current transmit / receive timing is a continuous wave signal, which is carried on multiple consecutive symbols. Among the multiple consecutive symbols, there is a symbol that overlaps with the buffer time period.

3. The method according to claim 2, characterized in that, 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 first transceiver timing: Determine the reception time period for receiving the sensed signal; The first transceiver sequence is obtained by removing the receiving time period from the receiving window of the current transceiver sequence.

4. The method according to claim 3, characterized in that, 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. The predicted receiving power of the transceiver is obtained based on the received power, transmitting antenna gain, receiving antenna gain, and frequency band spatial path loss corresponding to the signal propagation path length. 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, characterized in that, Based on the detection results, including that the reception time of the sensed signal received in the current transmit / receive sequence is within the reception window and the received power is not less than the tolerable maximum power, before receiving the sensed signal in the first transmit / receive 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 first transmission and reception timing sequence. The adjustment includes delaying or advancing the transmission times of the other signals; or... The current transmit / receive timing sequence is determined as the first transmit / receive timing sequence.

6. The method according to claim 5, characterized in that, When the current transmit / receive timing is determined to be the first transmit / receive timing, the method further includes: The sampling points at the receiving location of the sensed signal are subjected to interference cancellation processing; 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, characterized in that, The method further includes: 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 transceiver timing is adjusted to obtain the first transceiver timing, 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, characterized in that, The step of adjusting the length of the buffer time period in the current transmit / receive timing sequence to obtain the first transmit / receive timing sequence includes: Based on the receiver's pulse width, the switching time period, and the length of the sensing signal propagation path, the length of the buffer time period in the current transmit / receive timing is adjusted to obtain the first transmit / receive timing.

9. The method according to claim 2, characterized in that, Based on the detection result, including the sensing signal received in the current transmit / receive sequence 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 in the first transmit / receive sequence: The first transceiver timing is obtained by shifting the end time of the transceiver window in the current transceiver timing forward by the duration of a buffer period; wherein, in the multiple symbols of the continuous wave signal received with the first transceiver timing, the last symbol has an overlapping portion with the previous symbol.

10. A communication device, characterized in that, include: Memory and processor; Memory and processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instructions, it performs the method as described in any one of claims 1 to 9.

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

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

Images