WO2024083179A1 - 基于感知的通信方法及装置 - Google Patents

基于感知的通信方法及装置 Download PDF

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Publication number
WO2024083179A1
WO2024083179A1 PCT/CN2023/125370 CN2023125370W WO2024083179A1 WO 2024083179 A1 WO2024083179 A1 WO 2024083179A1 CN 2023125370 W CN2023125370 W CN 2023125370W WO 2024083179 A1 WO2024083179 A1 WO 2024083179A1
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Prior art keywords
cyclic shift
sequence
sequences
control information
shift bit
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PCT/CN2023/125370
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English (en)
French (fr)
Inventor
钱彬
刘辰辰
彭晓辉
杜瑞
杨讯
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华为技术有限公司
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Publication of WO2024083179A1 publication Critical patent/WO2024083179A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/717—Pulse-related aspects

Definitions

  • the present application relates to the field of communication technology, and in particular to a perception-based communication method and device.
  • Ultra-wideband is a wireless carrier communication technology that can transmit data using nanosecond non-sinusoidal narrow pulses, so it occupies a wide spectrum range. Due to its narrow pulses and low radiation spectrum density, UWB has the advantages of strong multipath resolution, low power consumption, and strong confidentiality.
  • ultra-wideband wireless communication has become one of the hottest physical layer technologies for short-distance, high-speed wireless networks.
  • Many world-renowned companies, research institutions, and standardization organizations have actively invested in the research, development, and standardization of ultra-wideband wireless communication technology.
  • the Institute of Electrical and Electronics Engineers (IEEE) has incorporated UWB technology into its IEEE 802 series of wireless standards, and has released the wireless personal area network (WPAN) standard IEEE 802.15.4a based on UWB technology, as well as its evolved version IEEE 802.15.4z.
  • WPAN wireless personal area network
  • 802.15.4ab the formulation of the next-generation UWB wireless personal area network standard 802.15.4ab has also been put on the agenda.
  • UWB for perception is one of the important technical directions of 802.15.4ab.
  • a pulse cluster transmission method can be adopted.
  • Each pulse cluster contains multiple pulses.
  • the pulse cluster repetition interval can be set larger to ensure a larger unambiguous distance.
  • the transmission power can be increased.
  • the embodiments of the present application disclose a perception-based communication method and device, which can effectively improve the accuracy of perception results.
  • an embodiment of the present application provides a perception-based communication method, the method comprising:
  • the side lobes may overlap when the receiving end of the perception signal performs a correlation operation, resulting in a high side lobe amplitude, which in turn causes the receiving end to be unable to effectively determine the peak position (such as the highest peak) and the zero correlation zone (ZCZ), resulting in low accuracy of the perception result.
  • at least two of the relative cyclic shift bit numbers of adjacent sequences are different, so that when the receiving end of the perception signal processes the perception signal, such as when performing a correlation operation, the situation where the side lobes overlap is effectively weakened, thereby reducing the probability of a high side lobe amplitude.
  • the side lobe amplitude in the non-zero correlation zone is effectively reduced, ensuring that the receiving end of the perception signal can effectively determine the zero correlation zone, and effectively improving the accuracy of the perception result.
  • processing the signal based on the control information includes: determining the M sequences based on the M cyclic shift bit numbers and the reference sequence; and processing the signal based on the M sequences.
  • the receiving end of the perception signal can determine M sequences based on the control information, thereby ensuring that the receiving end of the perception signal and the transmitting end of the perception signal have the same understanding of the M sequences. If the understanding of the M sequences by both communicating parties is consistent, the receiving end of the perception signal can effectively correlate the received perception signal based on the M sequences, thereby effectively improving the accuracy of the perception result.
  • the processing of the signal based on the M sequences includes: processing the M sequences and the received The signals are correlated; and information about the target is determined based on the correlation results.
  • determining the target information based on the result of the correlation includes: determining the zero correlation zone based on the result of the correlation, and determining the target information based on the zero correlation zone.
  • the target information may include at least one of the following: the speed of the target, the angle of the target, the distance of the target, and the attenuation of the target.
  • the correlation shown in the embodiment of the present application may include autocorrelation, such as M sequences and the received signal are autocorrelated.
  • the autocorrelation can be understood as the multiplication of the sequence and its own elements at different time points, and the accumulation of the products. Since the signal received by the receiving end is determined by M sequences, the M sequences can be autocorrelated with the signal.
  • the acquiring control information includes: determining the control information; or receiving the control information.
  • the executor of the first aspect may be a receiving end of the perception signal, and the receiving end of the perception signal may determine the control information by itself and then send the control information to the sending end of the perception signal; or, the receiving end of the perception signal may receive the control information.
  • an embodiment of the present application provides a perception-based communication method, the method comprising:
  • the relative cyclic shift bit numbers of adjacent sequences are the same, when the receiving end of the perception signal performs a correlation operation, the side lobes are likely to overlap, resulting in a high side lobe amplitude, which in turn causes the receiving end to be unable to effectively determine the peak position and the zero correlation zone (ZCZ), resulting in low accuracy of the perception result.
  • at least two of the relative cyclic shift bit numbers of adjacent sequences are different, so that when the receiving end of the perception signal processes the perception signal, such as when performing a correlation operation, the situation where the side lobes overlap is effectively weakened, thereby reducing the probability of a high side lobe amplitude.
  • the side lobe amplitude in the non-zero correlation zone is effectively reduced, thereby ensuring that the receiving end of the perception signal can effectively determine the zero correlation zone, effectively improving the accuracy of the perception result.
  • sending a signal based on the control information includes: determining the M sequences based on the M cyclic shift bit numbers and the reference sequence; and sending the signal based on the M sequences.
  • the transmitter of the perception signal can determine M sequences based on the control information, thereby ensuring that the receiver of the perception signal and the transmitter of the perception signal have the same understanding of the M sequences. If the communication parties have the same understanding of the M sequences, the receiver of the perception signal can effectively correlate the received perception signal based on the M sequences, thereby effectively improving the accuracy of the perception result.
  • the acquiring control information includes: receiving the control information; or determining the control information.
  • the executor of the second aspect may be a sender of the perception signal, and the sender of the perception signal may receive the control information; or, the sender of the perception signal determines the control information itself, and then sends the control information to the receiver of the perception signal.
  • the relative cyclic shift bit number is greater than or equal to a cyclic shift bit number threshold, and the cyclic shift bit number threshold is determined based on an interval between adjacent short bursts.
  • the cyclic shift bit number threshold may be referred to as the minimum cyclic shift bit number among the relative cyclic shift bit numbers of adjacent sequences in the M sequences.
  • control information further includes at least one of the following: the number of pulses in a short burst, the interval between adjacent pulses in a short burst, and the interval between adjacent short bursts.
  • control information includes the above-mentioned number of pulses, the interval between adjacent pulses in a short burst, and the interval between adjacent short bursts, so that the receiving end can efficiently receive the perception signal and improve the communication efficiency.
  • the pulse in the i-th short burst is determined by the i-th element of each of the M sequences, where i is an integer greater than or equal to 1 and less than or equal to N, and N is equal to the number of elements in the sequence, and the elements in the sequence include -1, 0 and +1, -1 represents a negative pulse, +1 represents a positive pulse, or, -1 represents a positive pulse, and +1 represents a negative pulse.
  • multiple pulses in a short burst can be called a pulse cluster
  • the pulse in the i-th short burst is determined by the i-th element of each sequence in the M sequences, so that each pulse cluster contains multiple pulses
  • the burst repetition interval (BPI) (which can also be understood as the interval between adjacent short bursts) can be set larger to ensure a larger unambiguous distance.
  • BPI burst repetition interval
  • control information further includes at least one of a sequence identifier and a sequence length, and at least one of the sequence identifier and the sequence length is used to indicate the reference sequence.
  • both communicating parties can determine the reference sequence more efficiently and flexibly based on the control information, thereby effectively determining M sequences based on the reference sequence.
  • control information also includes at least one of the following: a sequence type, the sequence type including a first sequence type, the first sequence type being used to indicate that the M sequences have a periodic zero correlation zone; a cyclic shift type, the cyclic shift type including using different relative cyclic shift bit numbers.
  • the control information includes at least one of a sequence type or a cyclic shift type, so that the flexibility of perception can be improved.
  • the communicating parties can determine M sequences with a periodic zero correlation zone based on the control information, and the relative cyclic shift bit numbers of adjacent sequences in the M sequences can have at least two different relative cyclic shift bit numbers.
  • the communicating parties can determine M sequences with a periodic zero correlation zone based on the control information, and the relative cyclic shift bit numbers of adjacent sequences in the M sequences can be the same.
  • the communicating parties can determine M sequences with a non-periodic zero correlation zone based on the control information.
  • the cyclic shift parameter is used to indicate M cyclic shift bit numbers, including: the cyclic shift parameter includes the relative cyclic shift bit numbers of adjacent sequences in the M sequences; or, the cyclic shift parameter includes the offset between the relative cyclic shift bit numbers of adjacent sequences in the M sequences and a cyclic shift bit number threshold; or, the cyclic shift parameter includes information of a random number generation algorithm and the number of bits of the random number, and the random number generation algorithm and the number of bits of the random number are used to determine the M cyclic shift bit numbers.
  • the cyclic shift parameter can effectively save signaling overhead by including the relative cyclic shift bit number of adjacent sequences in the M sequences.
  • the cyclic shift parameter can further save signaling overhead by including the offset of the relative cyclic shift bit number relative to the cyclic shift bit number threshold.
  • the cyclic shift parameter can enable the communicating parties to generate the same random number through the random number generation algorithm and the number of bits of the random number by including the information of the random number generation algorithm and the number of bits of the random number, thereby ensuring that the M cyclic shift bit numbers determined by the communicating parties are consistent, improving communication efficiency, and saving signaling overhead.
  • an embodiment of the present application provides a communication device, which is used to execute the method in the first aspect or any possible implementation of the first aspect.
  • the communication device includes a unit having the function of executing the method in the first aspect or any possible implementation of the first aspect.
  • an embodiment of the present application provides a communication device, which is used to execute the method in the second aspect or any possible implementation of the second aspect.
  • the communication device includes a unit having the function of executing the method in the second aspect or any possible implementation of the second aspect.
  • the above communication device and the communication device may include a transceiver unit and a processing unit.
  • a transceiver unit and a processing unit For a detailed description of the transceiver unit and the processing unit, reference may also be made to the device embodiment shown below.
  • an embodiment of the present application provides a communication device, the communication device comprising a processor, configured to execute the method described in the first aspect or any possible implementation of the first aspect.
  • the processor is configured to execute a program stored in a memory, and when the program is executed, the method described in the first aspect or any possible implementation of the first aspect is executed.
  • the memory is located outside the above communication device.
  • the memory is located within the above-mentioned communication device.
  • the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.
  • the communication device further includes a transceiver, where the transceiver is used to receive a signal or send a signal.
  • an embodiment of the present application provides a communication device, the communication device comprising a processor, configured to execute the method described in the second aspect or any possible implementation of the second aspect.
  • the processor is configured to execute a program stored in a memory, and when the program is executed, the method described in the second aspect or any possible implementation of the second aspect is executed.
  • the memory is located outside the above communication device.
  • the memory is located within the above-mentioned communication device.
  • the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.
  • the communication device further includes a transceiver, where the transceiver is used to receive a signal or send a signal.
  • an embodiment of the present application provides a communication device, which includes a logic circuit and an interface, and the logic circuit and the interface are coupled; the logic circuit is used to obtain control information and process a perception signal based on the control information.
  • a logic circuit is used to input control information through an interface.
  • the logic circuit is further configured to output feedback information based on the processing result.
  • an embodiment of the present application provides a communication device, which includes a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the logic circuit is used to obtain control information and output a perception signal based on the control information.
  • a logic circuit is used to input control information through an interface.
  • Exemplary interface for inputting feedback information.
  • an embodiment of the present application provides a computer-readable storage medium, which is used to store a computer program.
  • the computer-readable storage medium is run on a computer, the method shown in the above-mentioned first aspect or any possible implementation of the first aspect is executed.
  • an embodiment of the present application provides a computer-readable storage medium, which is used to store a computer program.
  • the computer-readable storage medium is run on a computer, the method shown in the above-mentioned second aspect or any possible implementation of the second aspect is executed.
  • an embodiment of the present application provides a computer program product, which includes a computer program.
  • the computer program When the computer program is run on a computer, the method shown in the above-mentioned first aspect or any possible implementation of the first aspect is executed.
  • an embodiment of the present application provides a computer program product, which includes a computer program.
  • the computer program When the computer program is run on a computer, the method shown in the above-mentioned second aspect or any possible implementation of the second aspect is executed.
  • an embodiment of the present application provides a computer program.
  • the computer program runs on a computer, the method shown in the above-mentioned first aspect or any possible implementation of the first aspect is executed.
  • an embodiment of the present application provides a computer program.
  • the computer program runs on a computer, the method shown in the above-mentioned second aspect or any possible implementation of the second aspect is executed.
  • an embodiment of the present application provides a wireless communication system, which includes a transmitting end and a receiving end, the transmitting end is used to execute the method shown in the above-mentioned second aspect or any possible implementation of the second aspect, and the receiving end is used to execute the method shown in the above-mentioned first aspect or any possible implementation of the first aspect.
  • FIG1a is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application.
  • FIG1b is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application.
  • FIG2a is a schematic diagram of a perception scenario based on a perception respondent provided by an embodiment of the present application
  • FIG2b is a schematic diagram of a perception scenario based on a perception respondent provided by an embodiment of the present application.
  • FIG2c is a schematic diagram of a perception scenario based on multiple perception respondents provided in an embodiment of the present application.
  • FIG2d is a schematic diagram of a perception scenario based on multiple perception respondents provided in an embodiment of the present application.
  • FIG2e is a schematic diagram of a perception scenario based on a perception requester provided in an embodiment of the present application.
  • FIG2f is a schematic diagram of a perception scenario based on a perception requester provided in an embodiment of the present application.
  • FIG3 is a schematic diagram of a transmission sequence provided in an embodiment of the present application.
  • FIG4 is a flow chart of a perception-based communication method provided in an embodiment of the present application.
  • FIG5a is a schematic diagram of a normalized autocorrelation result provided in an embodiment of the present application.
  • FIG5b is a schematic diagram of a normalized autocorrelation result provided in an embodiment of the present application.
  • FIG5c is a schematic diagram of a normalized autocorrelation result provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • At least one (item) means one or more
  • “more than one” means two or more
  • “at least two (items)” means two or three and more than three
  • “and/or” is used to describe the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural.
  • “Or” means that two relationships may exist, such as only A exists, only B exists; when A and B are not mutually exclusive, it can also mean that there are three relationships, such as only A exists, only B exists, and A and B exist at the same time.
  • the technical solution provided in the embodiment of the present application can be applied to WPAN based on UWB technology.
  • the method provided in the embodiment of the present application can be applied to the IEEE802.15 series of protocols, such as the 802.15.4a protocol, the 802.15.4z protocol or the 802.15.4ab protocol, or a future generation of UWB WPAN standards, etc., which are not listed here one by one.
  • the technical solution provided in the embodiment of the present application can also be applied to WLAN, such as the IEEE802.11 series of protocols in Wi-Fi, such as the 802.11a/b/g protocol, the 802.11n protocol, the 802.11ac protocol, the 802.11ax protocol, the 802.11be protocol or the next generation of protocols, etc., which are not listed here one by one.
  • Wi-Fi 7 which can also be called extremely high throughput (EHT)
  • Wi-Fi 8 which can also be called ultra high reliability (UHR) or ultra high reliability and throughput (UHRT).
  • the method provided in the embodiments of the present application can also be applied to various communication systems, for example, it can be an Internet of Things (IoT) system, a Vehicle to X (V2X), a narrowband Internet of Things (NB-IoT) system, and applied to devices in the Internet of Things, IoT nodes, sensors, etc. in the Internet of Things (IoT), smart cameras, smart remote controls, smart water meters and electricity meters in smart homes, and sensors in smart cities. It can also be applicable to LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), long term evolution (LTE) system, as well as fifth-generation (5G) communication system, sixth-generation (6G) communication system, etc.
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • LTE long term evolution
  • 5G fifth-generation
  • 6G sixth-generation
  • UWB technology is a new type of wireless communication technology. It uses nanosecond non-sinusoidal narrow pulses to transmit data. By modulating impulse pulses with very steep rise and fall times, the spectrum range it occupies is very wide, making the signal have a bandwidth of the order of GHz. The bandwidth used by UWB is usually above 1GHz. Because the UWB system does not need to generate a sinusoidal carrier signal and can directly transmit an impulse sequence, the UWB system has a very wide spectrum and very low average power. The UWB wireless communication system has the advantages of strong multipath resolution, low power consumption, and strong confidentiality, which is conducive to coexistence with other systems, thereby improving spectrum utilization and system capacity.
  • the transmission power of the UWB transmitter can usually be less than 1 milliwatt (mW).
  • mW milliwatt
  • the interference generated by the UWB signal can be equivalent to white noise. This helps the good coexistence between ultra-wideband and existing narrowband communications. Therefore, the UWB system can work simultaneously with the narrowband (NB) communication system without interfering with each other.
  • the method provided in the embodiment of the present application can be implemented by a communication device in a wireless communication system.
  • the module that implements the UWB system function can be called a UWB module (such as being used to send UWB pulses), and the module that implements the narrowband communication system function can be called a narrowband communication module.
  • the UWB module and the narrowband communication module can be different devices or chips, etc., which are not limited in the embodiment of the present application.
  • the UWB module and the narrowband communication module can also be integrated in one device or chip, and the embodiment of the present application does not limit the implementation of the UWB module and the narrowband communication module in the communication device.
  • the perception signal shown in the embodiment of the present application can be sent by the UWB module.
  • the control information can be sent by the UWB module, or by the narrowband communication module, etc., which are not limited in the embodiment of the present application.
  • WLAN wireless local area networks
  • BLUETOOTH Bluetooth
  • HIPERLAN high performance wireless LAN
  • WAN wide area networks
  • the method provided in the embodiment of the present application can be implemented by a communication device in a wireless communication system.
  • the communication device can be a device involved in a UWB system.
  • the communication device can include but is not limited to a communication server, a router, a switch, a bridge, a computer, a mobile phone, etc.
  • the communication device can include a central control point, such as a personal area network (PAN) or a PAN coordinator, etc.
  • the communication device can include a user equipment (UE), which can include various devices with wireless communication functions.
  • PAN personal area network
  • UE user equipment
  • the communication device may include a handheld device, a vehicle-mounted device, a wearable device, an Internet of Things (IoT) device, a computing device, or other processing devices connected to a wireless modem, etc., which are not listed here one by one.
  • the communication device may include a chip, and the chip may be set in a communication server, a router, a switch, or a user terminal, etc., which are not listed here one by one.
  • FIG. 1a and FIG. 1b are schematic diagrams of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 1a is a star topology provided by an embodiment of the present application
  • FIG. 1b is a point-to-point topology provided by an embodiment of the present application.
  • a central control node can communicate data with one or more other devices.
  • FIG. 1b in a point-to-point topology, data communication can be performed between different devices.
  • both full-function devices and reduced-function devices can be understood as communication devices shown in the present application.
  • the full-function device and the reduced-function device are relative, such as a reduced-function device cannot be a PAN coordinator.
  • the low-function device may have no coordination capability or a lower communication rate than the full-function device.
  • the PAN coordinator shown in FIG. 1b is only an example, and the other three full-function devices shown in FIG. 1b can also be used as PAN coordinators, which are not shown one by one here.
  • the full-function device and low-function device shown in the embodiment of the present application are only examples of communication devices, and any communication device that can implement the perception-based communication method provided in the embodiment of the present application belongs to the protection scope of the embodiment of the present application.
  • the perception initiator and perception responder shown below can be a full-function device or a low-function device, and the embodiment of the present application does not limit this.
  • the communication device shown in the embodiment of the present application may include a perception initiator and a perception responder.
  • the perception initiator and the perception responder are relative.
  • the perception initiator is the party that initiates the perception process
  • the perception responder can be the party that responds according to the party that initiates the perception process.
  • the perception initiator can be the transmitter of the UWB signal
  • the perception responder is the receiver of the UWB echo signal.
  • the perception initiator can be the receiver of the UWB echo signal
  • the perception responder is the transmitter of the UWB signal.
  • the perception requester can be understood as the party that initiates the perception request to the perception initiator.
  • the perception initiator is the transmitter of the UWB signal and the perception responder is the receiver of the UWB echo signal
  • the signal received by the perception responder can be called a UWB echo signal relative to the UWB signal sent by the perception initiator.
  • the UWB signal and the UWB echo signal are collectively referred to as UWB signals below without distinction.
  • the UWB signal shown in the embodiment of the present application may also be referred to as a perception signal or a UWB pulse (referred to as a pulse), etc. Since the UWB signal is applied to a perception scenario, the UWB signal may also be referred to as a perception signal, and it is understandable that the perception signal may also be referred to as a signal.
  • the present application embodiment provides the following six scenarios. It is understandable that the scenarios shown in Figures 2a to 2f are only examples and should not be understood as limiting the present application embodiment.
  • Figures 2a and 2b can be understood as sensing scenarios based on one sensing responder, such as bi-static sensing
  • Figures 2c and 2d can be understood as sensing scenarios based on multiple sensing responders, such as multi-static sensing.
  • the sensing initiator is the receiver of the UWB echo signal
  • the sensing responder is the transmitter of the UWB signal.
  • the sensing initiator is the transmitter of the UWB signal
  • the sensing responder is the receiver of the UWB signal.
  • Figures 2e and 2f can be understood as sensing scenarios based on the participation of the sensing initiator, the sensing responder, and the sensing requester, such as sensing by proxy.
  • the perception initiator may send control information to the perception responder, so that the perception responder may send a perception signal based on the control information.
  • the perception initiator receives the perception signal and obtains relevant information of the target based on the control information and the perception signal, such as the distance, angle, speed, attenuation, etc. of the target.
  • the perception initiator may send control information to the perception responder, and send a perception signal based on the control information.
  • the perception responder receives the control information and the perception signal, and obtains relevant information of the target based on the control information and the perception signal.
  • the perception responder may send feedback information to the perception initiator, and the perception initiator obtains information related to the target through the feedback information.
  • the feedback information is used to feed back relevant information of the target.
  • the perception initiator may send control information to multiple perception responders, so that the perception responders among the multiple perception responders may send perception signals based on the control information.
  • the perception initiator receives the perception signals from the multiple perception responders, and obtains relevant information of the target based on the control information and the multiple perception signals.
  • the perception initiator may send control information to the multiple perception responders, and send a perception signal based on the control information.
  • the sensing responders among the multiple sensing responders receive the control information and the sensing signal, and obtain relevant information of the target based on the control information and the sensing signal.
  • the sensing responders among the multiple sensing responders may send feedback information to the sensing initiator, and the sensing initiator may obtain information related to the target through multiple feedback information.
  • the sensing requester may send a sensing request to the sensing initiator, the sensing initiator sends control information to the sensing responder, the sensing responder sends a sensing signal based on the control information, the sensing initiator receives the sensing signal, and obtains relevant information of the target based on the control information and the sensing signal.
  • the sensing initiator may send feedback information to the sensing requester.
  • the sensing requester sends a sensing request to the sensing initiator, the sensing initiator sends control information to the sensing responder, and the sensing initiator sends a sensing signal based on the control information.
  • the sensing responder obtains relevant information of the target based on the control information and the sensing signal.
  • the sensing responder sends feedback information to the sensing initiator.
  • the perception initiator receives the feedback information and sends the feedback information to the perception requester.
  • the method shown in FIG. 4 may be applied to a transmitting end and a receiving end.
  • the transmitting end may be understood as a transmitting end of a perception signal or a transmitting end of a perception signal
  • the receiving end may be understood as a receiving end of a perception signal.
  • the transmitting end may include a full-function device and the receiving end may include a low-function device; for another example, the transmitting end may include a low-function device and the receiving end may include a low-function device; for another example, the transmitting end may include a low-function device and the receiving end may include a full-function device; for another example, both the transmitting end and the receiving end may be full-function devices.
  • the transmitting end may include the perception responder shown in FIG. 2a, and the receiving end may include the perception initiator shown in FIG. 2a.
  • the transmitting end may include the perception initiator shown in FIG. 2b, and the receiving end may include the perception responder shown in FIG. 2b.
  • the transmitting end may include the perception responder shown in FIG. 2c, and the receiving end may include the perception initiator shown in FIG. 2c.
  • the transmitting end may include the perception initiator shown in FIG. 2d, and the receiving end may include the perception responder shown in FIG. 2d.
  • the transmitting end may include the perception responder shown in FIG. 2e, and the receiving end may include the perception initiator shown in FIG. 2e.
  • the transmitting end may include the perception initiator shown in FIG. 2f
  • the receiving end may include the perception responder shown in FIG. 2f.
  • the transmitting end and the receiving end listed based on FIG. 2a to FIG. 2f are only examples, and any device that can implement the method provided in the embodiment of the present application belongs to the protection scope of the embodiment of the present application, so the transmitting end and the receiving end listed above should not be understood as limiting the embodiment of the present application.
  • the embodiments of the present application describe the method provided by the embodiments of the present application based on the transmitting end and the receiving end, but the transmitting end and the receiving end may also have other devices in the process of transmitting information, such as forwarding information between the transmitting end and the receiving end through a forwarding device, etc. Therefore, the mutual transmission of information in the embodiments of the present application can be achieved by technical means that can be accomplished by those skilled in the art, and the embodiments of the present application do not limit other devices other than the transmitting end and the receiving end.
  • the pulses in the multiple pulse clusters can be encoded using a sequence set, for example, +1 corresponds to a positive pulse, -1 corresponds to a negative pulse, and 0 corresponds to no pulse, or +1 corresponds to a negative pulse, -1 corresponds to a positive pulse, and 0 corresponds to no pulse.
  • the number of cyclic shift bits between adjacent sequences in the sequence set is the same.
  • the sequences in the sequence set may include three elements, such as +1, -1 and 0.
  • the sequences in the sequence set may include a ternary sequence (such as an ipatov sequence) and its cyclic shift sequence, and the ternary sequence may have a complete periodic autocorrelation characteristic, and the cyclic shift sequence of the ternary sequence also has a complete periodic autocorrelation characteristic. Since the sequences in the sequence set have periodic autocorrelation characteristics, the sequence set may also be called a periodic zero correlation zone (zero correlation zone, ZCZ) sequence set. Exemplarily, for the relevant description of the ipatov sequence, please refer to IEEE802.15.4z-2020.chapter15 or IEEE802.15.4-2020.chapter15.
  • the specific contents of the ipatov sequence are no longer listed one by one in the embodiments of the present application.
  • the ternary sequence shown below can be understood as an ipatov sequence.
  • the complete periodic autocorrelation characteristic can be understood as the main lobe amplitude of the periodic autocorrelation is equal to the number of non-zero elements in the sequence, and the side lobe amplitude is 0.
  • the ternary sequence can generate a sequence set with a period ZCZ through cyclic shift.
  • the sequence in the periodic ZCZ sequence set as the transmission sequence also referred to as the transmission waveform sequence
  • the sidelobe amplitude can be effectively reduced, thereby reducing the interference between waveforms and increasing the unambiguous distance.
  • Figure 3 is a schematic diagram of a transmission sequence provided in an embodiment of the present application. As shown in Figure 3, the transmission shown in Figure 3 represents the transmission sequence, and the transmission sequence is represented between the two horizontal lines. Alternatively, the transmission shown in Figure 3 represents a signal transmitted through a straight path received by the receiving end of the perception signal.
  • Each row represents a pulse cluster, and each pulse cluster has 3 pulses (pulses) (only as an example), and each column in Figure 3 represents a ternary sequence and its cyclic prefix and suffix.
  • the part between the two horizontal lines represents a sequence set with different cyclic shifts, the part above the first horizontal line is the cyclic prefix, and the part below the second horizontal line is the cyclic suffix.
  • the length of the ternary sequence shown in Figure 3 is 6 (that is, the number of elements of the ternary sequence is 6), and the number of cyclic shift bits of the three sequences shown in Figure 3 are respectively 0 (the number of cyclic shift bits of the first sequence relative to the reference sequence is 0), 2 (the number of cyclic shift bits of the second sequence relative to the first sequence is 2), and 4 (the number of cyclic shift bits of the third sequence relative to the first sequence is 2), and the length of the cyclic prefix and suffix is 2.
  • the transmitter transmits a pulse cluster each time, and then transmits the next pulse cluster after the burst repetition interval (BRI).
  • the receiver uses the autocorrelation characteristics of the sequence set, uses the ternary sequence and its shifted sequence as the local sequence to correlate with the received signal, and realizes the perceptual measurement based on the peak position and other information.
  • the masked target shown in Figure 3 can be understood as the delay time of the reflection path is close to the delay time of the direct path, or the delay time of the reflection path is less than the delay time corresponding to the close target and the distant target shown in Figure 3.
  • the reason why the receiver only recovers two sequences based on the received signal is that the receiver has not received all the signals transmitted based on the direct path, but has received the signals transmitted based on the reflection path, so that the signals transmitted based on the direct path cover the signals transmitted based on the reflection path.
  • the far-away target can be understood as a target far away from the transmitter. For example, after the transmitter sends a pulse cluster, the receiver has not received the pulse cluster yet, and the transmitter sends another pulse cluster, so that the receiver may receive the echo of the previous pulse cluster after the transmitter sends another pulse cluster.
  • the hidden target, close-by target and distant target shown in FIG3 can be understood as three targets detected based on the sensing signal, and the delay time of the reflection path is successively increase.
  • the transmission sequence shown in the embodiment of the present application can be understood as the sequence between the horizontal lines shown in FIG3. It can be understood that the length of the sequence shown in FIG3, the number of pulses included in a pulse cluster, the length of the cyclic prefix, the length of the cyclic suffix, etc. are only examples and should not be understood as limiting the embodiments of the present application.
  • sequence sequence between two horizontal lines
  • pulse clusters pulses
  • pulses pulses
  • perception signals shown in FIG3 can be shown as follows:
  • Each column can represent a sequence, the length of the sequence is equal to the number of short bursts, and the number of sequences corresponds to the number of pulses in each short burst.
  • the pulse in each short burst is determined by the corresponding element of each sequence. For example, if the length of the sequence is N, the pulse in the i-th short burst is determined by the i-th element in each sequence, and i is an integer greater than or equal to 1 and less than or equal to N.
  • the i-th element includes +1, it corresponds to a positive pulse, if the i-th element includes -1, it corresponds to a negative pulse, and if the i-th element includes 0, it corresponds to no pulse; if the i-th element includes +1, it corresponds to a negative pulse, if the i-th element includes -1, it corresponds to a positive pulse, and if the i-th element includes 0, it corresponds to no pulse.
  • the pulse sent by the transmitter can be understood as a perception signal. It can be understood that multiple pulses in a short burst can also be called a pulse cluster.
  • the cyclic prefix can be determined based on the length and sequence of the cyclic prefix
  • the cyclic suffix can be determined based on the length and sequence of the cyclic suffix.
  • the length of the cyclic prefix is x1
  • the number of short bursts corresponding to the cyclic prefix is x1
  • the pulses in the short burst can be determined by the corresponding elements of the cyclic prefix.
  • the length of the cyclic suffix is x2, then the number of short bursts corresponding to the cyclic suffix is x2, and the pulses in the short burst can be determined by the corresponding elements of the cyclic suffix.
  • x1+x2 x
  • the number of short bursts sent by the transmitter in one perception time slot is N+x.
  • x1, x2 and x are all positive integers.
  • the relative cyclic shift bit number between any two adjacent sequences in the periodic ZCZ sequence set is the same.
  • the number of bits of the cyclic shift of the second sequence relative to the first sequence is the same as the number of bits of the cyclic shift of the third sequence relative to the second sequence.
  • the adjacent sequences in the periodic ZCZ sequence set are composed of ternary sequences that are sequentially cyclically shifted by the same number of bits relative to the previous sequence.
  • the relative cyclic shift bit number is the same and known, it is easy for a communication device that is not a true receiving end to generate a correct local sequence, so that after correlating with the received sequence, it can monitor the target information, causing the target's related information to be leaked.
  • the embodiment of the present application provides a communication method and device based on perception, in which at least two of the relative cyclic shift bit numbers between adjacent sequences have different values, thereby reducing the sidelobe amplitude of the non-zero correlation zone, effectively improving the accuracy of judging the position of the zero correlation zone, and improving the accuracy of the perception result.
  • the situation in which the sidelobe amplitude of the non-zero correlation zone is high due to the same relative cyclic shift bit number between any two adjacent sequences is effectively improved, and the accuracy of judging the position of the zero correlation zone is improved, thereby effectively improving the accuracy of the perception result.
  • At least two of the relative cyclic shift bit numbers between adjacent sequences have different values, so that a communication device that is not a true receiving end cannot obtain the local sequence, thereby preventing it from monitoring the target information, effectively improving the situation in which the target's relevant information is leaked, and increasing the security of perception.
  • the relative cyclic shift bit number can be understood as the cyclic shift bit number of one sequence relative to another sequence.
  • the two sequences shown here can be understood as adjacent sequences in M sequences.
  • the jth sequence and the j+1th sequence in the M sequences belong to adjacent sequences, or the jth sequence and the j-1th sequence also belong to adjacent sequences.
  • the first sequence and the last sequence in the M sequences also belong to adjacent sequences.
  • j is an integer greater than or equal to 1 and less than or equal to M.
  • the adjacent sequences in the M sequences include the last sequence and the first sequence in the M sequences. Therefore, the M sequences can correspond to M relative cyclic shift bit numbers, but in order to facilitate the communicating parties to effectively determine each sequence in the M sequences, the number of cyclic shift bits corresponding to the first sequence in the M cyclic shift bit numbers indicated by the cyclic shift parameter can be determined by the number of cyclic shift bits of the first sequence relative to the reference sequence. For example, in the case where the cyclic shift parameter includes the relative cyclic shift bit numbers of the adjacent sequences in the M sequences, the cyclic shift parameter may not include the number of cyclic shift bits of the first sequence relative to the last sequence.
  • the relative cyclic shift bit number may include the number of cyclic shift bits of the first sequence relative to the last sequence.
  • the number of cyclic shift bits of the M sequences may include the first sequence and the last sequence of the M sequences.
  • the relative number of cyclic shift bits does not include the number of cyclic shift bits of the first sequence relative to the last sequence.
  • the communicating parties can determine each of the M sequences based on the M relative cyclic shift bits corresponding to the M sequences
  • the relative cyclic shift bit number in the cyclic shift parameter can include the cyclic shift bit number of the first sequence of the M sequences relative to the last sequence.
  • cyclic shift bits such as at least one of the second to fourth items shown below
  • cyclic shift bits can also be applied to the following types of cyclic shift bits: such as the number of cyclic shift bits of a non-first sequence in the M sequences relative to the first sequence (such as applicable to the second and fourth items); and the number of cyclic shift bits of each sequence in the M sequences relative to the reference sequence (such as applicable to the second and fourth items).
  • the characteristic descriptions about the relative number of cyclic shift bits can also be applied to: such as the offset between the M cyclic shift bits and the cyclic shift bit threshold (such as applicable to the second and fourth items); and the offset between the relative cyclic shift bit number of adjacent sequences in the M sequences and the cyclic shift bit threshold (such as applicable to the second to fourth items), etc., which are not listed here one by one.
  • the relative cyclic shift bit number is greater than or equal to the cyclic shift bit number threshold (it can also be understood that the value of the relative cyclic shift bit number is greater than or equal to the value of the cyclic shift bit number threshold), and the cyclic shift bit number threshold is determined based on the interval between adjacent short bursts.
  • the cyclic shift bit number threshold is determined based on the interval between adjacent short bursts and the speed of light.
  • the cyclic shift bit number threshold is determined based on the interval between adjacent short bursts, the speed of light, and the perception range.
  • the perception range can be understood as the perception range of the perception signal, or the perception range determined by the communicating parties based on prior information, etc. The embodiment of the present application does not limit the specific value of the perception range.
  • the cyclic shift bit number threshold can also be called the minimum cyclic shift bit number or the minimum cyclic shift bit number, etc.
  • the relative cyclic shift bit number is greater than or equal to the cyclic shift bit number threshold, but the minimum value of the M relative cyclic shift bit numbers determined based on the M cyclic shift bit numbers (that is, the actual minimum relative cyclic shift bit number corresponding to the M cyclic shift bit numbers) is not necessarily the cyclic shift bit number threshold, such as it may be greater than the cyclic shift bit number threshold.
  • the cyclic shift bit number threshold may satisfy the following formula:
  • N min represents the cyclic shift bit number threshold
  • R represents the sensing range
  • c represents the speed of light
  • BRI represents the interval between pulse clusters. It can be understood that the interval between pulse clusters can be understood as the interval between adjacent short bursts.
  • the jth sequence and the j+1th sequence in the M sequences are adjacent sequences
  • the jth sequence and the j-1th sequence are adjacent sequences
  • the last sequence in the M sequences and the first sequence in the M sequences are also adjacent sequences.
  • the second term, the first short burst, has a good autocorrelation property.
  • the first short burst shown here does not include the short burst corresponding to the cyclic prefix, and does not include the short burst corresponding to the cyclic suffix, which can be understood as a short burst determined by the first element in each sequence in the M sequences.
  • the first short burst in a period of time has a good autocorrelation characteristic.
  • the period of time can be understood as a time period corresponding to the M sequences determined based on the cyclic shift parameter in the control information.
  • the sum of the period of time and the time corresponding to the cyclic prefix and the time corresponding to the cyclic suffix can be collectively referred to as a sensing slot.
  • the transmitter of the sensing signal can send pulses in 10 short bursts corresponding to the three sequences shown in Figure 3.
  • the transmitter of the sensing signal can send pulses in N+x short bursts corresponding to M sequences, where N represents the length of the sequence and x represents the sum of the lengths of the cyclic prefix and the cyclic suffix.
  • a good autocorrelation characteristic can be understood as the ratio of the main lobe amplitude to the side lobe amplitude being greater than or equal to a certain threshold.
  • the specific value of the certain threshold is not limited in the embodiments of the present application.
  • the first short burst has a good autocorrelation characteristic, which can make it easier for the receiving end to find the position where the direct path arrives, so that after the receiving end finds the position where the direct path arrives (such as the origin in Figures 5a and 5b), the buffer before the position of the direct path can be deleted, effectively reducing the buffer size of the receiving end. It is understandable that after the receiving end determines the position where the direct path arrives based on the first short burst, the position of the subsequent short burst can be determined accordingly. Therefore, the embodiments of the present application do not limit the autocorrelation characteristics of subsequent short bursts.
  • At least two relative cyclic shift bit numbers may be different.
  • Figure 5a shows the normalized autocorrelation result of the receiving end.
  • the horizontal axis in Figure 5a represents the sampling point (can also be timeshift), the unit is code chip, and the vertical axis represents the result of the normalized autocorrelation.
  • LOS line of sight
  • NLOS non-line of sight
  • the receiving end needs to find The position of the highest peak is determined according to the position of the highest peak.
  • the starting position of the ZCZ is determined based on the position of the highest peak.
  • the length of the ZCZ is obtained based on the minimum number of cyclic shift bits in the relative cyclic shift bit number and the interval between adjacent short bursts, thereby obtaining the accurate position of the ZCZ and obtaining information such as the number of targets and target distance.
  • the sidelobe amplitude may be higher than the mainlobe amplitude.
  • the receiving end cannot effectively determine the exact position of the ZCZ, reducing the accuracy of the receiving end's perception.
  • the length of the ZCZ in Figure 5a can be equal to the minimum number of cyclic shift bits in the relative cyclic shift bit number * the interval between adjacent short bursts/2.
  • the length of the ZCZ can be equal to the minimum number of cyclic shift bits in the relative cyclic shift bit number * the interval between adjacent short bursts * the speed of light/2.
  • Figure 5b shows a schematic diagram of the normalized autocorrelation result of the receiving end when at least two different relative cyclic shift bits are included.
  • Figure 5b shows a schematic diagram of the normalized autocorrelation result of the receiving end when at least two different relative cyclic shift bits are included.
  • the sidelobe amplitude in the non-ZCZ area is effectively reduced.
  • the receiving end can effectively find the highest peak, effectively ensure that the receiving end can accurately determine the ZCZ, and improve the accuracy of the receiving end perception.
  • the number of cyclic shift bits may vary in different sensing time slots.
  • the communicating parties can obtain the number of cyclic shift bits through control information, or obtain the number of cyclic shift bits, reference sequence, number of pulses of short burst, etc. through control information, so as to ensure that the information obtained by the communicating parties is consistent.
  • the M number of cyclic shift bits indicated by the cyclic shift parameter can remain unchanged, or the M number of cyclic shift bits indicated by the cyclic shift parameter can change in different perception time slots.
  • the embodiment of the present application does not limit the number of perception time slots. Generally speaking, the number of perception time slots can be agreed upon by the communicating parties, or defined by the protocol, etc., and will not be listed one by one.
  • the real receiving end (such as a legitimate communication device) can obtain the number of cyclic shift bits based on the control information, rather than the real receiving end (illegal monitoring equipment). Since it is unable to effectively obtain the number of cyclic shift bits, it effectively obtains M sequences and is unable to extract the target information, thereby effectively improving the perceived security and effectively protecting the target's related information.
  • the values of the number of cyclic shifts determined based on at least one of the first to third items described above all belong to the protection scope of the embodiments of the present application.
  • Table 1 is a different example of the number of cyclic shifts provided in the embodiments of the present application.
  • the first number of the number of cyclic shifts shown in Table 1 is the number of cyclic shifts of the sequence relative to the reference sequence, and the other numbers are the number of cyclic shifts of the corresponding sequence relative to the reference sequence.
  • the reference sequence shown in Table 1 is ⁇ 1,1,1,1,1,-1,1,0,-1,1,-1,0,-1,-1,-1,1,-1,0,1,-1,1,1,-1,-1,1,1,0,-1,1,-1,1,1,0,-1,1,-1,-1,1,1,0,0,1,0,1,1,1,1,-1,-1,1,1,0,0,1,0,1,1,1,1,-1,-1,1,1,0,1,0,1,1,1,1,-1,-1,-1,1,1,0,1,1,1,1,-1,-1,-1,1,1,0,1,1,1,1,-1,-1,-1,1,1,1,1,-1,-1,1,1,1,-1 ⁇ ,1,1,1,1,1,-1,1,0,-1,1,-1,-1,1,1,-1 ⁇ .
  • the cyclic shift bit number of the third sequence relative to the reference sequence is 23, that is, the relative cyclic shift bit number of the third sequence and the second sequence is 9.
  • the cyclic shift bit number of the fourth sequence relative to the reference sequence is 35, and the relative cyclic shift bit number of the fourth sequence and the third sequence is 12.
  • the first sequence and the fourth sequence are also adjacent sequences, and the cyclic shift bit number of the first sequence relative to the fourth sequence is 23.
  • Table 1 is shown based on an example in which the sequence length is 57, i.e., includes 57 elements (the elements include +1, 0, and -1), and a short burst includes 4 to 8 pulses, but it should not be understood as a limitation on the embodiments of the present application.
  • the number of cyclic shift bits shown in Table 1 is only an example.
  • the number of cyclic shift bits can also have other values, which are not listed one by one.
  • sequences of other lengths, numbers of pulses, and numbers of cyclic shift bits the embodiments of the present application are not shown.
  • the cyclic shift parameter is used to indicate M cyclic shift bit numbers, and the M cyclic shift bit numbers correspond to M sequences.
  • the M cyclic shift bit numbers corresponding to M sequences can be understood as: there is a corresponding relationship between the M cyclic shift bit numbers and the M sequences; or, the M cyclic shift bit numbers can be used to determine the M sequences; or, the cyclic shift bit numbers between the sequences in the M sequences are determined by the M cyclic shift bit numbers.
  • the jth cyclic shift bit number in the M cyclic shift bit numbers can correspond to the jth sequence in the M sequences, such as the cyclic shift bit number of the jth sequence relative to a certain sequence is equal to the jth cyclic shift bit number, and j is an integer greater than or equal to 1 and less than or equal to M.
  • the above-mentioned certain sequence may include at least one of a reference sequence, a j-1th sequence, a j+1th sequence, and a first sequence.
  • the certain sequence may be the j-1th sequence in the M sequences.
  • the certain sequence may be the first sequence in the M sequences.
  • the certain sequence may be a reference sequence. It can be understood that no matter how the above sequence is set, at least two relative cyclic shift bit numbers of adjacent sequences in the M sequences corresponding to the M cyclic shift bit numbers are different; or, it can be understood that at least two relative cyclic shift bit numbers of adjacent sequences in the M sequences determined based on the cyclic shift parameters are different.
  • the number of cyclic shift bits of the jth sequence relative to a certain sequence may be the number of bits of the jth sequence cyclically shifted to the left relative to the certain sequence, or the number of bits of the jth sequence cyclically shifted to the right relative to the certain sequence.
  • the M cyclic shift bits are all the number of bits of cyclic shift to the left, or the number of bits of cyclic shift to the right.
  • the cyclic shift parameter shown above can also be understood as: the cyclic shift parameter is used to indicate the M cyclic shift bit numbers corresponding to the M sequences; or, the cyclic shift parameter is used to indicate the cyclic shift bit numbers corresponding to the M sequences.
  • the cyclic shift sequence of the M sequences determined by the communicating parties based on the cyclic shift parameter, or the inverse sequence of the M sequences, or the reverse sequence of the M sequences, etc. can all be used as the transmission sequence, as long as the communicating parties reach a consensus on the transmission sequence.
  • the reference sequence can be determined based on at least one of the sequence identifier and the sequence length in the control information.
  • the control information may also include a sequence identifier, which can be used to indicate the reference sequence.
  • the control information may also include a sequence length, which can be used to indicate the length of the reference sequence.
  • the communicating parties can determine that the length of the reference sequence is 57, thereby searching for a sequence with a length of 57 from the ternary sequence, or searching for a sequence with a length of 57 from a sequence with a complete periodic autocorrelation characteristic.
  • the communicating parties can clearly know the reference sequence based on the sequence length or the sequence identifier, thereby improving the efficiency of the interaction between the communicating parties.
  • the reference sequence can be indicated by the control information before the control information shown in step 401.
  • the communicating parties may determine the reference sequence based on the control information including at least one of the sequence length or the sequence identifier before the control information shown in step 401.
  • the reference sequence may be a sequence negotiated by the communicating parties, or may be a sequence defined by the protocol. The embodiment of the present application does not limit the method for setting the reference sequence.
  • the cyclic shift parameter is used to indicate a cyclic shift bit number including: the cyclic shift parameter includes an offset of the cyclic shift bit number relative to a certain value.
  • the certain value may be agreed upon by the communicating parties, or defined by a protocol, etc., and the embodiments of the present application are not limited to this. Indicating the cyclic shift bit number of a sequence relative to a reference sequence by means of an offset can effectively save signaling overhead.
  • the cyclic shift parameter may include the cyclic shift bit number of the sequence relative to the reference sequence. This method allows the communicating parties to clearly know the cyclic shift bit number, which is simpler.
  • the cyclic shift parameter may include information of a random number generation algorithm and the number of bits of the random number.
  • a plurality of bits are generated by a random number generation algorithm, and then a certain number of bits (consistent with the number of bits indicated in the cyclic shift parameter) is selected from the plurality of bits, and the value represented by the certain number of bits (such as a decimal value) is the cyclic shift bit number.
  • the communicating parties can use the value represented by the certain number of bits as the number of cyclic shifts of the sequence relative to the reference sequence; or the communicating parties can use the sum of the value represented by the certain number of bits and the cyclic shift number threshold as the number of cyclic shifts of the sequence relative to the reference sequence.
  • the number of cyclic shifts is determined by a random number generation algorithm, which is more secure.
  • the 2 cyclic shift bit numbers include the cyclic shift bit number of one of the 2 sequences relative to the reference sequence and the relative cyclic shift bit number of the 2 sequences.
  • M is greater than 2
  • the cyclic shift parameter is used to indicate M cyclic shift bit numbers, and at least two relative cyclic shift bit numbers of adjacent sequences in M sequences corresponding to the M cyclic shift bit numbers are different.
  • the number of cyclic shift bits of the first sequence in the M sequences relative to the reference sequence may be the first number of the M cyclic shift bits.
  • the number of cyclic shift bits of the second sequence in the M sequences relative to the first sequence is the second number.
  • the number of cyclic shift bits of the third sequence in the M sequences relative to the second sequence is the third number.
  • the number of cyclic shift bits of the fourth sequence in the M sequences relative to the third sequence is the third number. And so on, which are not listed here one by one.
  • the number of cyclic shift bits of the first sequence among the M sequences relative to the reference sequence may be the first number of the M cyclic shift bits.
  • the number of cyclic shift bits of the second sequence among the M sequences relative to the first sequence (or the reference sequence) is the second number of bits.
  • the number of cyclic shift bits of the third sequence among the M sequences relative to the first sequence (or the reference sequence) is the third number of bits.
  • the number of cyclic shift bits of the fourth sequence among the M sequences relative to the first sequence (or the reference sequence) is the third number of bits. And so on, which are not listed here one by one.
  • the cyclic shift parameter may be used to indicate the number of M cyclic shift bits and may include the following methods:
  • the cyclic shift parameter may include M cyclic shift bit numbers, and the M cyclic shift bit numbers include the relative cyclic shift bit numbers of adjacent sequences in the M sequences.
  • the M cyclic shift bit numbers may be, in sequence, the cyclic shift bit number of the first sequence in the M sequences relative to the reference sequence, the cyclic shift bit number of the second sequence in the M sequences relative to the first sequence, the cyclic shift bit number of the third sequence in the M sequences relative to the second sequence, ..., the cyclic shift bit number of the Mth sequence in the M sequences relative to the M-1th sequence.
  • the cyclic shift parameter may include M cyclic shift bit numbers, and the M cyclic shift bit numbers may be the cyclic shift bit number of the first sequence relative to the reference sequence and the cyclic shift bit number between adjacent sequences in the M sequences.
  • Table 2 is a schematic diagram of a cyclic shift parameter provided in an embodiment of the present application.
  • sequence 1 shown in Table 2 represents the first sequence among the M sequences
  • sequence 2 represents the second sequence among the M sequences
  • sequence M represents the Mth sequence among the M sequences.
  • the number of cyclic shift bits of sequence 1 may be the number of cyclic shift bits of sequence 1 relative to the reference sequence, or the offset between the number of cyclic shift bits of sequence 1 relative to the reference sequence and a threshold number of cyclic shift bits (or a first number of cyclic shift bits), etc.
  • the number of cyclic shift bits of sequence 2 may be the number of cyclic shift bits of sequence 2 relative to sequence 1, or the offset between the number of cyclic shift bits of sequence 2 relative to sequence 1 and a threshold number of cyclic shift bits (or a first number of cyclic shift bits), etc.
  • the number of cyclic shift bits of sequence 3 may be the number of cyclic shift bits of sequence 3 relative to sequence 2, or the number of cyclic shift bits of sequence 3 relative to sequence 1, or the offset between the number of cyclic shift bits of sequence 3 relative to sequence 2 and a threshold number of cyclic shift bits (or a first number of cyclic shift bits), or the offset between the number of cyclic shift bits of sequence 3 relative to sequence 1 and a threshold number of cyclic shift bits (or a first number of cyclic shift bits). And so on, which are not listed one by one here.
  • the cyclic shift parameter may include the number of cyclic shift bits of the non-first sequence in the M sequences relative to the first sequence and the number of cyclic shift bits of the first sequence relative to the reference sequence.
  • the cyclic shift parameter includes the number of cyclic shift bits of the first sequence in the M sequences relative to the reference sequence, the number of cyclic shift bits of the second sequence in the M sequences relative to the first sequence, the number of cyclic shift bits of the third sequence in the M sequences relative to the first sequence, and so on.
  • the cyclic shift parameter may include the number of cyclic shift bits of the first sequence in the M sequences relative to the reference sequence and the number of cyclic shift bits of the non-first sequence in the M sequences relative to the first sequence.
  • the cyclic shift parameter includes an offset between a cyclic shift number of a non-first sequence in the M sequences relative to the first sequence and a cyclic shift number threshold, and an offset between a cyclic shift number of the first sequence relative to the reference sequence and a cyclic shift number threshold.
  • the cyclic shift parameter may include an offset between a cyclic shift number of the first sequence in the M sequences relative to the reference sequence and a cyclic shift number threshold, an offset between a cyclic shift number of the second sequence in the M sequences relative to the first sequence and a cyclic shift number threshold, an offset between a cyclic shift number of the third sequence in the M sequences relative to the first sequence and a cyclic shift number threshold, and so on.
  • the cyclic shift parameter may include an offset between a relative cyclic shift number of adjacent sequences in the M sequences and a cyclic shift number threshold, and an offset between a cyclic shift number of the first sequence relative to a reference sequence and a cyclic shift number threshold.
  • the cyclic shift parameter may include an offset between a cyclic shift number of the first sequence in the M sequences relative to a reference sequence and a cyclic shift number threshold, an offset between a cyclic shift number of the second sequence in the M sequences relative to the first sequence and a cyclic shift number threshold, an offset between a cyclic shift number of the third sequence in the M sequences relative to the second sequence and a cyclic shift number threshold, and so on.
  • the cyclic shift bit number threshold is only an example, such as the cyclic shift bit number threshold can be replaced by the cyclic shift bit number of the first sequence relative to the reference sequence.
  • the cyclic shift bit number of the first sequence in the M sequences relative to the reference sequence is the first cyclic shift bit number
  • the cyclic shift parameter may include 0, the offset between the cyclic shift bit number of the second sequence in the M sequences relative to the first sequence and the first cyclic shift bit number, the offset between the cyclic shift bit number of the third sequence in the M sequences relative to the first sequence and the first cyclic shift bit number, and so on.
  • the cyclic shift parameter may include 0, the offset between the cyclic shift bit number of the second sequence in the M sequences relative to the first sequence and the first cyclic shift bit number, the offset between the cyclic shift bit number of the third sequence in the M sequences relative to the second sequence and the first cyclic shift bit number, and so on.
  • the control information may include the above-mentioned cyclic shift bit number threshold or the first cyclic shift bit number.
  • the cyclic shift parameter includes information of the random number generation algorithm and the number of bits of the random number, and the random number generation algorithm and the number of bits of the random number are used to determine the M cyclic shift bits. That is to say, both communicating parties generate some random numbers based on the random number generation algorithm, and these random numbers can be used as the cyclic shift bits of the M sequences. It can be understood that the random numbers generated by the transmitting end and the receiving end need to be consistent. Therefore, in the case where the cyclic shift parameter is not updated through the control information, both communicating parties can generate the same random number through the random number generation algorithm.
  • the sender and receiver By configuring a seed, the sender and receiver generate the same random number through the seed, and the number of cyclic shift bits is determined based on the random number and the number of bits of the random number, as shown in Table 3.
  • the seed type indicates the random number generation algorithm. For example, a seed type value of 0 indicates that a random number is generated by a scrambled timestamp sequence (STS) (such as the AES-128 algorithm); a seed type value of 1 indicates that a random number is generated by a linear feedback shift register (LFSR).
  • STS scrambled timestamp sequence
  • LFSR linear feedback shift register
  • the random number represents the number of bits corresponding to one cyclic shift bit.
  • the random number generated by the random number generation algorithm and the random number can determine the cyclic shift bit number of each sequence.
  • the STS parameter corresponds to the seed type.
  • the seed type indicates that the STS parameter exists when a random number is generated by STS.
  • the STS parameter exists, wherein Octets 0-11 represent StsVUpper96, Octets 12-15 represent StsVCounter, and Octets 16-31 represent the STS key (StsKey).
  • StsVUpper96 and StsVCounter together constitute 128 bits (128 bits for AES-128 as an example) of STS data.
  • the seed type value is 1, the STS parameter does not exist.
  • the LFSR parameter corresponds to the seed type.
  • the seed type indicates that the LFSR parameter exists when the random number is generated by the LFSR.
  • the seed type value is 1, the LFSR parameter exists.
  • the LFSR parameter in Table 3 can represent the initial state of the LFSR. The number of bits contained in the initial state is equal to the number of shift registers in the LFSR. When the seed type value is 0, the LFSR parameter does not exist.
  • the communicating parties can generate a 128-bit output according to the input of the STS parameter, and then sequentially take the number of bits consistent with the random bit number from the 128 bits, and determine the number of cyclic shift bits according to the number of bits consistent with the random bit number.
  • the communicating parties can sequentially take 4 bits from the 128 bits, and each 4 bits sequentially correspond to the above-mentioned M cyclic shift bits.
  • the M cyclic shift bits can be equal to the sum of the cyclic shift bit threshold and the value represented by the output random number.
  • the seed type value is 1, according to the input of the LFSR parameter, 1 bit is generated each time, and the cyclic shift bit number is determined based on the number of bits corresponding to the random bit number.
  • the communicating parties can sequentially take 4 bits from the output of the LFSR, and each 4 bits sequentially correspond to the above-mentioned M cyclic shift bits; or, the M cyclic shift bits can be equal to the sum of the cyclic shift bit threshold and the value represented by each 4 bits.
  • the difference between the relative cyclic shift bit number of adjacent sequences in the M sequences and the cyclic shift bit number threshold can be expressed as: R 1 , R 2 , ..., R M , then the M cyclic shift bit numbers can satisfy the following formula:
  • Nmin represents the cyclic shift bit number threshold
  • M represents the number of sequences
  • N represents the length of the sequence.
  • R1 represents the difference between the cyclic shift bit number of the sequence relative to the reference sequence and the cyclic shift bit number threshold.
  • the value B of the random bit number can satisfy the following formula:
  • the control information may be included in a physical layer (PHY) protocol data unit (PPDU), and the control information may be referred to as a pulse cluster sensing configuration information unit (IE), etc.
  • PHY physical layer
  • IE pulse cluster sensing configuration information unit
  • the communicating parties may exchange control information in the sensing control phase.
  • the communicating parties may exchange control information in a sensing round, and a sensing round may include multiple sensing time slots.
  • the embodiments of the present application do not limit the number of sensing time slots included in a sensing round.
  • the communicating parties may exchange control information once through a sensing round.
  • the communicating parties may exchange control information once in multiple sensing rounds, that is, the control information corresponding to the multiple sensing rounds is the same. If the cyclic shift parameter is not updated, the transmitting end may send a sensing signal through the most recent control information including the cyclic shift parameter, and the receiving end may process it through the most recent control information including the cyclic shift parameter.
  • the control information may include a cyclic shift parameter, and also includes at least one of the number of pulses in a short burst, the interval between adjacent pulses in a short burst, the interval between adjacent short bursts, a sequence identifier, a sequence length, a first sequence type, and a type using different cyclic shift bit numbers (or a type using the same cyclic shift bit number).
  • the pulse cluster transmission mode since the pulse cluster transmission mode is adopted, the unambiguous distance is large, the transmission power is effectively improved, and the perception range is increased.
  • control information may include a cyclic shift parameter, and also includes at least one of the number of pulses in the short burst being 1, the interval between adjacent pulses in the short burst (equal to the interval between adjacent short bursts), a sequence identifier, a sequence length, and a first sequence type.
  • the control information may include a cyclic shift parameter, and also includes at least one of the number of pulses in the short burst being 1, the interval between adjacent pulses in the short burst (equal to the interval between adjacent short bursts), a sequence identifier, a sequence length, and a first sequence type.
  • the pulse cluster perception mode is adopted and a non-periodic ZCZ sequence is used, at least one of the number of pulses in a short burst, the interval between adjacent pulses in a short burst, the interval between adjacent short bursts, the sequence identifier, and the sequence length may be included.
  • the non-periodic ZCZ sequence used by the communicating parties can be as shown in Table 4. It can be understood that Table 4 is only an example and should not be understood as a limitation on the embodiments of the present application.
  • S1 to S16 in Table 4 can be understood as non-periodic ZCZ sequences.
  • the sequence set with an index of 0 indicates that the sequence set includes 8 non-periodic ZCZ sequences
  • the sequence set with an index of 1 indicates that the sequence set includes 16 non-periodic ZCZ sequences
  • the sequence set with an index of 2 indicates that the sequence set includes 4 non-periodic ZCZ sequences
  • the sequence set with an index of 3 indicates that the sequence set includes 4 non-periodic ZCZ sequences.
  • control information includes at least one of the following:
  • Cyclic shift parameter number of pulses in a short burst (pulse per burst), interval between adjacent pulses in a short burst (pulse interval within burst), interval between adjacent short bursts (burst repetition interval), sequence identifier (or index indication), sequence length (sequence length), sequence type (sequence type), cyclic shift type (cyclic shift type).
  • the value of the number of pulses in a short burst can represent the maximum number of pulses sent by the transmitter in a short burst.
  • the number of pulses in a short burst can be used to indicate the number of pulses (or the number of chips) in a short burst, and the number of pulses can be equal to the number of sequences.
  • the number of pulses shown here is shown by taking the number of sequences as an example, and the specific pulses in a short burst need to be determined according to the i-th element in the M sequences.
  • the value of the number of pulses in a short burst can be 4, indicating that the transmitter can send a maximum of 4 pulses in a short burst.
  • the value of the number of pulses in a short burst can be 5, indicating that the transmitter can send a maximum of 5 pulses in a short burst.
  • the number of pulses in a short burst is greater than or equal to 2, they are not listed here one by one.
  • the value of the number of pulses in a short burst is 1, which can indicate that the transmitter uses a non-pulse cluster sensing mode.
  • the non-pulse cluster sensing mode may include a pulse transmission mode using a high pulse repetition frequency (PRF), which has a higher transmission power; or, a pulse transmission mode using a lower PRF, which has a larger unambiguous distance.
  • a high PRF may correspond to a level of hundreds of megahertz (MHz) (eg, 124.8 MHz)
  • a low PRF may correspond to a level below 100 MHz (eg, 7.8 MHz).
  • the value of the number of pulses in a short burst is equal to the number of sequences.
  • the receiving end can effectively know the number of cyclic shift bits in the cyclic shift parameter (i.e., the value of M), so as to effectively know the location of the control information and avoid mistaking the information in other information elements (IE) for the information in the control information.
  • IE information elements
  • the number of pulses in a short burst can indicate that a non-pulse cluster sensing mode is adopted, or a pulse cluster sensing mode is adopted.
  • the number of pulses in a short burst is 0, which indicates that a non-pulse cluster sensing mode is adopted; the number of pulses in a short burst is A value of 1 indicates that the pulse cluster sensing mode is adopted.
  • the unit of the interval between adjacent pulses in a short burst may be chip or nanosecond (ns).
  • the unit of the interval between adjacent short bursts may be nanoseconds (ns) or chips.
  • the sequence identifier can be used to indicate a reference sequence, and the sequence identifier can be understood as the sequence number or the index of the sequence.
  • the sequence length can be used to indicate the length of the reference sequence.
  • the reference sequence can be a sequence in a sequence set, and the sequence set can be stored at the transmitting end and the receiving end; or, the sequence set can be defined by a protocol, etc., which is not limited in the embodiments of the present application. Through at least one of the sequence identifier or the sequence length, the communicating parties can effectively know the reference sequence.
  • the reference sequence shown above is shown as an example of a sequence using a periodic zero correlation zone, that is, the reference sequence can be a ternary sequence (such as an ipatov sequence) with a complete periodic autocorrelation characteristic or a sequence composed of its cyclic shift.
  • the sequence identifier can be used to indicate a set identifier of multiple sequences used to determine the perception signal.
  • the control information may not include a cyclic shift parameter.
  • the sequence type can be used to indicate the use of a sequence with a periodic zero correlation zone, or the use of a sequence without a periodic zero correlation zone.
  • the sequence type includes a first sequence type, and the control information includes a cyclic shift parameter, and the first sequence type can be used to indicate that M sequences have a periodic zero correlation zone.
  • the sequence type includes a second sequence type, and the control information does not include a cyclic shift parameter, and the sequence representation included in the control information is used to indicate a sequence set identifier, and the sequence set corresponding to the sequence set identifier includes multiple sequences, and the multiple sequences do not have a periodic zero correlation zone. For example, when the sequence type value is 0, it indicates a sequence set with a periodic zero correlation zone; when the sequence type value is 1, it indicates a sequence set with a non-periodic zero correlation zone.
  • the cyclic shift type is used to indicate that the same relative cyclic shift bit number is used between adjacent sequences, or that different relative cyclic shift bit numbers can be used between adjacent sequences. For example, when the cyclic shift type value is 0, it indicates that the same relative cyclic shift bit number is used between adjacent sequences.
  • the cyclic shift bit number can be determined by the sequence length and the number of sequences (i.e., the number of pulses in a short burst, such as When the cyclic shift type value is 1, it means that different relative cyclic shift bits are used between adjacent sequences.
  • control information may further include at least one of a cyclic prefix (CP) length (CP length) and a cyclic suffix (CS) length (CS length). It is understood that the lengths of the cyclic prefix and the cyclic suffix may be the same or different.
  • CP cyclic prefix
  • CS cyclic suffix
  • FIG4 is a flow chart of a perception-based communication method provided in an embodiment of the present application.
  • the description of the transmitter and the receiver can be referred to above. It can be understood that the transmitter and the receiver shown in the embodiment of the present application are relative to the perception signal, so the transmitter of the perception signal is not necessarily the transmitter of the control information, and correspondingly, the receiver of the perception signal is not necessarily the receiver of the control information.
  • the method includes:
  • the sender obtains control information.
  • the transmitting end obtaining the control information may include: the transmitting end determining the control information (or the transmitting end generating the control information); or the transmitting end receiving the control information. It is understandable that after the transmitting end determines the control information, the control information may be sent.
  • control information please refer to the above text and will not be described in detail here.
  • the transmitting end sends a perception signal based on the control information, and correspondingly, the receiving end receives the perception signal.
  • the perception signal shown in FIG. 4 is only an example.
  • the perception signal can be collectively referred to as a signal; for example, the perception signal can also be referred to as a UWB pulse, etc.
  • the transmitting end when the transmitting end sends control information to the receiving end, the transmitting end may first determine the control information, and then determine M sequences based on the control information, and send a perception signal. For another example, when the transmitting end sends control information to the receiving end, the transmitting end may first determine M sequences, and then determine the control information based on the M sequences, and send a perception signal. Exemplarily, when the transmitting end receives control information, the transmitting end may obtain M cyclic shift bit numbers based on the control information, and then determine M sequences based on the M cyclic shift bit numbers and a reference sequence, and send a perception signal.
  • the sending of the perception signal based on the control information in the embodiment of the present application can be understood as: the transmitting end determines the type of the sequence to be sent based on the sequence type and the type of cyclic shift. Similarly, the receiving end determines the type of the sequence to be received based on the sequence type and the type of cyclic shift bit number.
  • the transmitting end can send a perception signal based on the M sequences, the interval between adjacent pulses in a short burst, the interval between adjacent short bursts, and the chip size corresponding to a pulse.
  • the receiving end can receive a perception signal based on the M sequences, the interval between adjacent pulses in a short burst, the interval between adjacent short bursts, and the chip size corresponding to a pulse.
  • the M sequences can be used to determine the positions of positive pulses, negative pulses, and no pulses included in a short burst (or pulse cluster), the chip size corresponding to a pulse can be used to determine the duration of a pulse (a chip will still correspond to no pulse), and the interval between each pulse can be determined by the interval between adjacent pulses in the short burst.
  • the next pulse cluster is determined based on the interval between adjacent short bursts.
  • the receiver can receive the perception signal based on a sequence determined by it, the number of pulses in the short burst (i.e., 1), and the interval between adjacent short bursts.
  • a sequence set with the same relative cyclic shift bit number is determined (such as determined based on the cyclic shift parameter, sequence identifier and sequence length).
  • the transmitting end can send a perception signal based on the sequence set with the same relative cyclic shift bit number, the interval between adjacent pulses in a short burst, the interval between adjacent short bursts, and the chip size corresponding to a pulse.
  • the receiving end can receive a perception signal based on the sequence set with the same relative cyclic shift bit number, the interval between adjacent pulses in a short burst, the interval between adjacent short bursts, and the chip size corresponding to a pulse.
  • the transmitting end may determine a sequence set of a non-periodic ZCZ (such as determined based on at least one of a sequence identifier or a sequence length), and then send a perception signal based on the sequence set of the non-periodic ZCZ, the interval between adjacent pulses in a short burst, the interval between adjacent short bursts, and the chip size corresponding to a pulse.
  • the receiving end may receive a perception signal based on the sequence set of the non-periodic ZCZ, the interval between adjacent pulses in a short burst, the interval between adjacent short bursts, and the chip size corresponding to a pulse.
  • the receiving end obtains the control information and performs processing based on the control information.
  • the receiving end obtaining the control information includes: the receiving end receiving the control information; or the receiving end determining the control information. It is understandable that after the receiving end determines the control information, the control information can be sent.
  • the transmitting end may transmit the control information, and correspondingly, the receiving end may receive the control information.
  • the receiving end may transmit the control information, and correspondingly, the transmitting end may receive the control information.
  • the receiving end may receive control information from the transmitting end, obtain M cyclic shift bit numbers and a reference sequence, and determine M sequences.
  • the receiving end may send control information to the transmitting end, such as first determining M sequences, and then determining control information based on the M sequences; or, the control information may be sent first, and then the M sequences may be determined based on the control information.
  • the M sequences may be correlated with the received signal, and the target information may be determined based on the correlation result.
  • determining the target information based on the correlation result includes: determining a zero correlation zone based on the correlation result, and determining the target information based on the zero correlation zone.
  • the target information may include at least one of the following: the speed of the target, the angle of the target, the distance of the target, and the attenuation of the target.
  • the transmitter may send M pulses in a short burst (for example only, the specific number of pulses is determined based on the elements of the sequence), and the transmitter may send multiple short bursts (such as N+x short bursts). Some of these pulses may reach the receiving end through a direct path, and some may reach the receiving end through a reflected path.
  • the receiving end can perform analog-to-digital conversion sampling to obtain a sampled value, and determine each sampled value to be one of +1, -1, and 0 based on a threshold value.
  • the receiving end can perform correlation, determine the highest peak as the initial position of the ZCZ, and determine the length of the ZCZ based on the minimum number of cyclic shift bits in the relative cyclic shift bit number and the interval between adjacent short bursts. Then, the relevant information of the target is determined based on the ZCZ.
  • the number of targets can be determined by the number of peaks in the ZCZ. As shown in FIG5a, the highest peak in the ZCZ is the initial position of the ZCZ, and the other three peaks in the ZCZ can correspond to three targets.
  • the receiving end may also send feedback information to the sending end, where the feedback information is used to feed back relevant information of the target; or, the feedback information is used to feed back the perception measurement result obtained by the receiving end based on the control information.
  • the specific content of the feedback information is not listed in the embodiments of the present application.
  • the side lobes may overlap when the receiving end of the perception signal performs a correlation operation, resulting in a high side lobe amplitude, which in turn causes the receiving end to be unable to effectively determine the peak position (such as the highest peak) and the zero correlation zone (ZCZ), resulting in low accuracy of the perception result.
  • at least two of the relative cyclic shift bit numbers of adjacent sequences are different, so that when the receiving end of the perception signal processes the perception signal, such as when performing a correlation operation, the situation where the side lobes overlap is effectively weakened, thereby reducing the probability of a high side lobe amplitude.
  • the side lobe amplitude in the non-zero correlation zone is effectively reduced, ensuring that the receiving end of the perception signal can effectively determine the zero correlation zone, and effectively improving the accuracy of the perception result.
  • the embodiment of the present application divides the communication device into functional modules according to the above method embodiment. For example, each function may be divided into various modules.
  • the present invention can be implemented as a functional module or as a software functional module.
  • the integrated module can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.
  • the communication device of the embodiment of the present application will be described in detail below in conjunction with Figures 6 to 8.
  • FIG6 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • the communication device includes a processing unit 601 and a transceiver unit 602 .
  • the communication device may be the transmitting end or chip shown above, and the chip may be applied to the transmitting end, etc. That is, the communication device may be used to execute the steps or functions executed by the transmitting end in the above method embodiments, etc.
  • the processing unit 601 is configured to obtain control information and send a perception signal based on the control information.
  • the processing unit 601 is used to determine the control information; or, the control information is input through the transceiver unit 602.
  • the processing unit 601 is specifically configured to determine M sequences based on M cyclic shift bit numbers and a reference sequence; and send the perception signal based on the M sequences.
  • transceiver unit and the processing unit shown in the embodiment of the present application is only an example.
  • specific functions or execution steps of the transceiver unit and the processing unit reference can be made to the above-mentioned method embodiment, which will not be described in detail here.
  • the communication device may be the receiving end shown above or a chip in the receiving end, etc. That is, the communication device may be used to execute the steps or functions executed by the receiving end in the above method embodiment.
  • the processing unit 601 is used to obtain control information and perform processing based on the control information.
  • the processing unit 601 is used to determine control information; the control information is input through the transceiver unit 602.
  • the processing unit 601 is specifically configured to determine M sequences based on M cyclic shift bit numbers and a reference sequence; and process the received perception signal based on the M sequences.
  • transceiver unit and the processing unit shown in the embodiment of the present application is only an example.
  • specific functions or execution steps of the transceiver unit and the processing unit reference can be made to the above-mentioned method embodiment, which will not be described in detail here.
  • control information cyclic shift parameters
  • M cyclic shift bits relative cyclic shift bits
  • M sequences etc.
  • the processing unit 601 may be one or more processors, the transceiver unit 602 may be a transceiver, or the transceiver unit 602 may also be a sending unit and a receiving unit, the sending unit may be a transmitter, the receiving unit may be a receiver, and the sending unit and the receiving unit are integrated into one device, such as a transceiver.
  • the processor and the transceiver may be coupled, etc., and the embodiment of the present application does not limit the connection mode of the processor and the transceiver.
  • the process of sending information in the above method can be understood as the process of outputting the above information by the processor.
  • the processor When outputting the above information, the processor outputs the above information to the transceiver so that it is transmitted by the transceiver. After the above information is output by the processor, it may also need to be processed in other ways before it reaches the transceiver. Similarly, the process of receiving information in the above method can be understood as the process of the processor receiving the input information.
  • the processor receives the input information
  • the transceiver receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the above information, the above information may need to be processed in other ways before it is input into the processor.
  • the communication device 70 includes one or more processors 720 and a transceiver 710 .
  • the processor 720 is configured to obtain control information and send a perception signal based on the control information.
  • the processor 720 is configured to determine the control information; or, input the control information through the transceiver 710.
  • the processor 720 is specifically configured to determine M sequences based on M cyclic shift bit numbers and a reference sequence; and send the perception signal based on the M sequences.
  • the processor 720 is used to obtain control information and perform processing based on the control information.
  • the processor 720 is used to determine control information; the control information is input through the transceiver 710.
  • the processor 720 is specifically configured to determine M sequences based on M cyclic shift bit numbers and a reference sequence; and process the received perception signal based on the M sequences.
  • control information cyclic shift parameters
  • M cyclic shift bits relative cyclic shift bits
  • M sequences etc.
  • the transceiver may include a receiver and a transmitter, wherein the receiver is used to perform a receiving function (or operation) and the transmitter is used to perform a transmitting function (or operation).
  • the transceiver is used to communicate with other devices/devices via a transmission medium.
  • the communication device 70 may also include one or more memories 730 for storing program instructions and/or data, etc.
  • the memory 730 is coupled to the processor 720.
  • the coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 720 may operate in conjunction with the memory 730.
  • the processor 720 may execute program instructions stored in the memory 730.
  • at least one of the one or more memories may be included in the processor.
  • the memory may be used to store control information.
  • the memory may be used to store M sequences, or a non-periodic ZCZ sequence set, etc.
  • connection medium between the above-mentioned transceiver 710, processor 720 and memory 730 is not limited in the embodiment of the present application.
  • the memory 730, processor 720 and transceiver 710 are connected through a bus 740.
  • the bus is represented by a bold line in FIG. 7 .
  • the connection mode between other components is only for schematic illustration and is not limited thereto.
  • the bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bold line is used in FIG. 7 , but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., and may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor, etc.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor, etc.
  • the memory may include, but is not limited to, non-volatile memory such as a hard disk drive (HDD) or a solid-state drive (SSD), a random access memory (RAM), an erasable programmable read-only memory (EPROM), a read-only memory (ROM) or a portable read-only memory (CD-ROM), etc.
  • the memory is any storage medium that can be used to carry or store program codes in the form of instructions or data structures and can be read and/or written by a computer (such as the communication device shown in the present application), but is not limited thereto.
  • the memory in the embodiment of the present application can also be a circuit or any other device that can realize a storage function, which is used to store program instructions and/or data.
  • the memory can store reference information, that is, the perception measurement results in the sampling unit.
  • the reference information can also be stored in its memory.
  • the processor 720 is mainly used to process the communication protocol and communication data, and to control the entire communication device, execute the software program, and process the data of the software program.
  • the memory 730 is mainly used to store the software program and data.
  • the transceiver 710 may include a control circuit and an antenna.
  • the control circuit is mainly used to convert the baseband signal and the radio frequency signal and to process the radio frequency signal.
  • the antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves.
  • the input and output devices such as a touch screen, a display screen, a keyboard, etc., are mainly used to receive data input by the user and output data to the user.
  • the processor 720 can read the software program in the memory 730, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 720 performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal outward in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 720.
  • the processor 720 converts the baseband signal into data and processes the data.
  • the RF circuit and antenna may be arranged independently of the processor performing baseband processing.
  • the RF circuit and antenna may be arranged independently of the communication device in a remote manner.
  • the communication device shown in the embodiment of the present application may also have more components than those in FIG. 7, and the embodiment of the present application does not limit this.
  • the method performed by the processor and transceiver shown above is only an example, and the specific steps performed by the processor and transceiver can refer to the method described above.
  • the processing unit 601 may be one or more logic circuits, and the transceiver unit 602 may be an input-output interface, or may be called a communication interface, or an interface circuit, or an interface, etc.
  • the transceiver unit 602 may also be a sending unit and a receiving unit, the sending unit may be an output interface, the receiving unit may be an input interface, and the sending unit and the receiving unit are integrated into one unit, such as an input-output interface.
  • the communication device shown in FIG8 includes a logic circuit 801 and an interface 802.
  • the above-mentioned processing unit 601 can be implemented by the logic circuit 801, and the transceiver unit 602 can be implemented by the interface 802.
  • the logic circuit 801 can be Chip, processing circuit, integrated circuit or system on chip (SoC) chip, etc.
  • the interface 802 can be a communication interface, an input and output interface, a pin, etc.
  • FIG. 8 is an example of the above communication device as a chip, and the chip includes a logic circuit 801 and an interface 802.
  • the chip shown in the embodiment of the present application may include a narrowband chip or an ultra-wideband chip, etc., and the embodiment of the present application is not limited.
  • the step of sending a perception signal or the step of receiving a perception signal as shown above can be performed by an ultra-wideband chip, and whether the remaining steps are performed by the ultra-wideband chip is not limited in the embodiment of the present application.
  • the narrowband chip and the ultra-wideband chip can be included in the same communication device, or, they can be arranged in different communication devices.
  • the steps of the transmitting end shown above can be implemented by a communication device including a narrowband chip and an ultra-wideband chip, or, they can be implemented by a device including a narrowband chip and a device including an ultra-wideband chip, respectively.
  • the logic circuit and the interface may also be coupled to each other.
  • the embodiment of the present application does not limit the specific connection method of the logic circuit and the interface.
  • the following description is given by taking a narrowband chip as an example. However, it should not be understood as a limitation on the embodiment of the present application.
  • the perception signal may be sent by the ultra-wideband chip.
  • the ultra-wideband chip receives the perception signal, the perception signal may be sent to the narrowband chip.
  • the logic circuit 801 is used to obtain control information and output a perception signal based on the control information.
  • the logic circuit 801 is used to input control information through the interface 802.
  • the logic circuit 801 is used to output the sensing signal through the interface 802.
  • the logic circuit 801 is used to obtain control information and process the perception signal based on the control information.
  • the logic circuit 801 is used to input control information through the interface 802 .
  • the chip shown in FIG8 may further include a memory, which may be used to store control information; or, the memory may be used to store M sequences; or, the memory may be used to store a non-periodic ZCZ sequence set, etc.
  • a memory which may be used to store control information; or, the memory may be used to store M sequences; or, the memory may be used to store a non-periodic ZCZ sequence set, etc.
  • the communication device shown in the embodiment of the present application can implement the method provided in the embodiment of the present application in the form of hardware, or can implement the method provided in the embodiment of the present application in the form of software, etc., and the embodiment of the present application is not limited to this.
  • control information cyclic shift parameters
  • M cyclic shift bits relative cyclic shift bits
  • M sequences etc.
  • An embodiment of the present application also provides a wireless communication system, which includes a transmitting end and a receiving end.
  • the transmitting end and the receiving end can be used to execute the method in any of the aforementioned embodiments (such as FIG. 4 ).
  • the present application also provides a computer program, which is used to implement the operations and/or processing performed by the sending end in the method provided by the present application.
  • the present application also provides a computer program, which is used to implement the operations and/or processing performed by the receiving end in the method provided by the present application.
  • the present application also provides a computer-readable storage medium, in which computer codes are stored.
  • the computer codes are executed on a computer, the computer executes the operations and/or processing performed by the sending end in the method provided in the present application.
  • the present application also provides a computer-readable storage medium, in which computer codes are stored.
  • the computer codes are executed on a computer, the computer executes the operations and/or processing performed by the receiving end in the method provided by the present application.
  • the present application also provides a computer program product, which includes a computer code or a computer program.
  • a computer program product which includes a computer code or a computer program.
  • the present application also provides a computer program product, which includes a computer code or a computer program.
  • a computer program product which includes a computer code or a computer program.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or it can be an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware or It can be implemented in the form of a software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned readable storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

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Abstract

一种基于感知的通信方法及装置，应用于基于UWB的WPAN系统如802.15系列协议中的802.15.4a协议、802.15.4z协议或802.15.4ab协议等；还可以应用于802.11ax下一代Wi-Fi协议如802.11be，Wi-Fi 7或EHT，如802.11be下一代，Wi-Fi 8或UHR等802.11系列协议的WLAN系统，感知系统等。发送端获取控制信息，基于该控制信息发送感知信号；对应的，接收端获取控制信息，基于该控制信息进行处理。控制信息用于指示M个序列对应的M个循环移位位数，M个序列中相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同。有效提高了感知结果的准确性。

Description

基于感知的通信方法及装置
本申请要求在2022年10月21日提交中国国家知识产权局、申请号为202211296757.0的中国专利申请的优先权，发明名称为“基于感知的通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种基于感知的通信方法及装置。
背景技术
超宽带技术(ultra wideband，UWB)是一种无线载波通信技术，如可以利用纳秒级的非正弦波窄脉冲传输数据，因此其所占的频谱范围很宽。由于其脉冲比较窄，且辐射谱密度低，因此UWB具有多径分辨能力强，功耗低，保密性强等优点。
随着2002年UWB技术被批准进入民用领域，超宽带无线通信成为短距离、高速无线网络热门的物理层技术之一。许多世界著名的大公司、研究机构、标准化组织都积极投入到超宽带无线通信技术的研究、开发和标准化工作之中。电气与电子工程师协会(institute of electrical and electronics engineers，IEEE)已经将UWB技术纳入其IEEE 802系列无线标准，已经发布了基于UWB技术的无线个域网(wireless personal area network，WPAN)标准IEEE 802.15.4a，以及其演进版本IEEE 802.15.4z，目前下一代UWB无线个域网标准802.15.4ab的制定也已经提上日程。用UWB进行感知是802.15.4ab的重要的技术方向之一。例如，利用UWB进行感知时，可以采用脉冲簇的发射方式，每个脉冲簇中包含多个脉冲，脉冲簇重复间隔可以设置较大以保证较大的不模糊距离，同时，由于脉冲数较多，可以提高传输功率。
然而，目前存在的基于感知的通信方法中，感知结果的准确性还有待提高。
发明内容
本申请实施例公开一种基于感知的通信方法及装置，可以有效提高感知结果的准确性。
第一方面，本申请实施例提供一种基于感知的通信方法，所述方法包括：
获取控制信息，所述控制信息包括循环移位参数，所述循环移位参数用于指示M个循环移位位数，所述M个循环移位位数对应M个序列；其中，M＝1时，所述M个循环移位位数为序列相对于基准序列的循环移位位数；或者，M＝2时，所述M个循环移位位数包括所述M个序列中的一个序列相对于基准序列的循环移位位数和所述M个序列的相对循环移位位数，或者，所述M个循环移位位数包括所述M个序列中的序列相对于基准序列的循环移位位数；或者，M大于2时，所述M个循环移位位数对应的所述M个序列中相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同；基于所述控制信息处理信号。
本申请实施例中，M＝1或M＝2时，通信双方通过控制信息达到对循环移位位数的理解一致，从而有效避免了由于通信双方对循环移位位数的理解不一致导致的感知结果不准确的情况，提高了感知结果的准确性。
M大于2时，如果相邻序列的相对循环移位位数相同，则感知信号的接收端在执行相关操作时，旁瓣可能会出现重叠，从而导致旁瓣幅度较高，进而导致接收端无法有效确定出峰值位置(如最高峰)，无法有效确定出零相关区(zero correlation zone，ZCZ)，导致感知结果的准确性不高。然而，本申请实施例中，相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同，由此感知信号的接收端对感知信号进行处理，如执行相关操作时，有效削弱了旁瓣出现重叠的情况，从而降低了旁瓣幅度高的概率。有效降低了非零相关区的旁瓣幅度，保证感知信号的接收端能够有效确定出零相关区，有效提高了感知结果的准确性。
在一种可能的实现方式中，所述基于所述控制信息处理信号包括：基于所述M个循环移位位数和所述基准序列确定所述M个序列；基于所述M个序列处理信号。
本申请实施例中，感知信号的接收端基于控制信息可以确定M个序列，从而保证感知信号的接收端与感知信号的发送端对M个序列的理解一致。通信双发对M个序列的理解保持一致，则感知信号的接收端可以有效地基于该M个序列对接收到的感知信号进行相关，从而能够有效提高感知结果的准确性。
在一种可能的实现方式中，所述基于所述M个序列处理信号包括：对所述M个序列和接收到的所述 信号进行相关；基于相关的结果确定目标的信息。
示例性的，基于相关的结果确定目标的信息包括：基于相关的结果确定零相关区，基于零相关区确定目标的信息。该目标的信息可以包括如下至少一项：目标的速度、目标的角度、目标的距离、目标的衰减。本申请实施例所示的相关可以包括自相关，如M个序列和接收到的信号进行自相关。示例性的，自相关可以理解为序列及其自身在不同时间点的元素相乘，以及乘积累加。由于接收端接收到的信号是通过M个序列确定的，因此M个序列与所述信号之间可以进行自相关。
在一种可能的实现方法中，所述获取控制信息包括：确定所述控制信息；或者，接收所述控制信息。
本申请实施例中，第一方面的执行主体可以为感知信号的接收端，而感知信号的接收端可以自己确定控制信息，然后向感知信号的发送端发送该控制信息；或者，感知信号的接收端可以接收控制信息。
第二方面，本申请实施例提供一种基于感知的通信方法，所述方法包括：
获取控制信息，所述控制信息包括循环移位参数，所述循环移位参数用于指示M个循环移位位数，所述M个循环移位位数对应M个序列；其中，M＝1时，所述M个循环移位位数为序列相对于基准序列的循环移位位数；或者，M＝2时，所述M个循环移位位数包括所述M个序列中的一个序列相对于基准序列的循环移位位数和所述M个序列的相对循环移位位数，或者，所述M个循环移位位数包括所述M个序列中的序列相对于基准序列的循环移位位数；或者，M大于2时，所述M个循环移位位数对应的所述M个序列中相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同；基于所述控制信息发送信号。
本申请实施例中，M＝1或M＝2时，通信双方通过控制信息达到对循环移位位数的理解一致，从而有效避免了由于通信双方对循环移位位数的理解不一致导致的感知结果不准确的情况，提高了感知结果的准确性。
M大于2时，如果相邻序列的相对循环移位位数相同，则感知信号的接收端在执行相关操作时，旁瓣很大可能会出现重叠，从而导致旁瓣幅度较高，进而导致接收端无法有效确定出峰值位置，无法有效确定出零相关区(zero correlation zone，ZCZ)，导致感知结果的准确性不高。然而，本申请实施例中，相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同，由此感知信号的接收端对感知信号进行处理，如执行相关操作时，有效削弱了旁瓣出现重叠的情况，从而降低了旁瓣幅度高的概率。有效降低了非零相关区的旁瓣幅度，进而保证感知信号的接收端能够有效确定出零相关区，有效提高了感知结果的准确性。
在一种可能的实现方式中，所述基于所述控制信息发送信号包括：基于所述M个循环移位位数和所述基准序列确定所述M个序列；基于所述M个序列发送所述信号。
本申请实施例中，感知信号的发送端基于控制信息可以确定M个序列，从而保证感知信号的接收端与感知信号的发送端对M个序列的理解一致。通信双发对M个序列的理解保持一致，则感知信号的接收端可以有效地基于该M个序列对接收到的感知信号进行相关，从而能够有效提高感知结果的准确性。
在一种可能的实现方法中，所述获取控制信息包括：接收所述控制信息；或者，确定所述控制信息。
本申请实施例中，第二方面的执行主体可以为感知信号的发送端，而感知信号的发送端可以接收控制信息；或者，感知信号的发送端自己确定控制信息，然后向感知信号的接收端发送该控制信息。
结合第一方面或第二方面，在一种可能的实现方式中，所述相对循环移位位数大于或等于循环移位位数阈值，所述循环移位位数阈值基于相邻短突发之间的间隔确定。
本申请实施例中，循环移位位数阈值可以称为M个序列中相邻序列的相对循环移位位数中的最小循环移位位数。通过保证每个相对循环移位位数大于或等于循环移位位数阈值，可以使得通信双方通过M个循环移位位数确定的M个序列之间的零相关区的长度(或称为大小)大于或等于循环移位位数阈值，从而有效增加了不模糊距离，扩大了感知范围。不模糊距离可以理解为一个脉冲遇到目标产生的回波信号达到接收端时，下一个脉冲的直射径也刚好达到该接收端。因此，如果不模糊距离过小，则会导致接收端无法有效分辨出其接收到的信号所对应的脉冲。
结合第一方面或第二方面，在一种可能的实现方式中，所述控制信息还包括如下至少一项：短突发内的脉冲数量、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔。
本申请实施例中，控制信息中通过包括上述脉冲数量、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔，可使得接收端能够高效地接收到感知信号，提高通信效率。
结合第一方面或第二方面，在一种可能的实现方式中，第i个短突发内的脉冲由所述M个序列中每个序列的第i个元素确定，所述i为大于或等于1且小于或等于N的整数，所述N等于所述序列的元素个数，所述序列中的元素包括-1、0和+1，-1表示负脉冲，+1表示正脉冲，或者，-1表示正脉冲，+1表示负脉冲。
本申请实施例中，M大于或等于2时，短突发内的多个脉冲可以称为脉冲簇，第i个短突发内的脉冲由M个序列中每个序列的第i个元素确定，从而每个脉冲簇中包含多个脉冲，脉冲簇重复间隔(burst repetition interval，BPI)(也可以理解为相邻短突发之间的间隔)可以设置较大进而保证较大的不模糊距离。同时，由于脉冲数较多，还可以有效提高传输功率。
结合第一方面或第二方面，在一种可能的实现方式中，所述控制信息还包括序列标识、序列长度中的至少一项，所述序列标识、所述序列长度中的至少一项用于指示所述基准序列。
本申请实施例中，控制信息中通过包括用于指示基准序列的信息，可使得通信双方基于控制信息更高效更灵活地确定基准序列，从而基于基准序列有效地确定M个序列。
结合第一方面或第二方面，在一种可能的实现方式中，所述控制信息还包括如下至少一项：序列类型，所述序列类型包括第一序列类型，所述第一序列类型用于指示所述M个序列具有周期零相关区；循环移位的类型，所述循环移位的类型包括使用不同的相对循环移位位数。
本申请实施例中，控制信息中通过包括序列类型或循环移位类型中的至少一项，可以提高感知的灵活性。如通信双方可以基于控制信息确定具有周期零相关区的M个序列，该M个序列中相邻序列的相对循环移位位数中可以有至少两个不同的相对循环移位位数。又如通信双方可以基于控制信息确定具有周期零相关区的M个序列，该M个序列中相邻序列的相对循环移位位数可以相同。又如通信双方可以基于控制信息确定具有非周期零相关区的M个序列。
结合第一方面或第二方面，在一种可能的实现方式中，所述循环移位参数用于指示M个循环移位位数包括：所述循环移位参数包括M个序列中相邻序列的相对循环移位位数；或者，所述循环移位参数包括所述M个序列中相邻序列的相对循环移位位数与循环移位位数阈值的偏移量；或者，所述循环移位参数包括随机数生成算法的信息、随机数的比特数，所述随机数生成算法和所述随机数的比特数用于确定所述M个循环移位位数。
本申请实施例中，循环移位参数通过包括M个序列中相邻序列的相对循环移位位数可以有效节省信令开销。循环移位参数通过包括相对循环移位位数相对于循环移位位数阈值的偏移量可以进一步节省信令开销。循环移位参数通过包括随机数生成算法的信息和随机数的比特数，可使得通信双方通过该随机数生成算法和随机数的比特数生成相同的随机数，从而保证通信双方确定的M个循环移位位数保持一致，提高通信效率，还可以节省信令开销。
第三方面，本申请实施例提供一种通信装置，用于执行第一方面或第一方面的任意可能的实现方式中的方法。该通信装置包括具有执行第一方面或第一方面的任意可能的实现方式中的方法的单元。
第四方面，本申请实施例提供一种通信装置，用于执行第二方面或第二方面的任意可能的实现方式中的方法。该通信装置包括具有执行第二方面或第二方面的任意可能的实现方式中的方法的单元。
在第三方面或第四方面中，上述通信装置和通信装置可以包括收发单元和处理单元。对于收发单元和处理单元的具体描述还可以参考下文示出的装置实施例。
第五方面，本申请实施例提供一种通信装置，该通信装置包括处理器，用于执行上述第一方面或第一方面的任意可能的实现方式所示的方法。或者，该处理器用于执行存储器中存储的程序，当该程序被执行时，上述第一方面或第一方面的任意可能的实现方式所示的方法被执行。
在一种可能的实现方式中，存储器位于上述通信装置之外。
在一种可能的实现方式中，存储器位于上述通信装置之内。
本申请实施例中，处理器和存储器还可以集成于一个器件中，即处理器和存储器还可以被集成在一起。
在一种可能的实现方式中，通信装置还包括收发器，该收发器，用于接收信号或发送信号。
第六方面，本申请实施例提供一种通信装置，该通信装置包括处理器，用于执行上述第二方面或第二方面的任意可能的实现方式所示的方法。或者，处理器用于执行存储器中存储的程序，当该程序被执行时，上述第二方面或第二方面的任意可能的实现方式所示的方法被执行。
在一种可能的实现方式中，存储器位于上述通信装置之外。
在一种可能的实现方式中，存储器位于上述通信装置之内。
在本申请实施例中，处理器和存储器还可以集成于一个器件中，即处理器和存储器还可以被集成在一起。
在一种可能的实现方式中，通信装置还包括收发器，该收发器，用于接收信号或发送信号。
第七方面，本申请实施例提供一种通信装置，该通信装置包括逻辑电路和接口，所述逻辑电路和所述接口耦合；所述逻辑电路，用于获取控制信息，以及基于该控制信息对感知信号进行处理。
示例性的，逻辑电路，用于通过接口输入控制信息。
示例性的，逻辑电路，还用于基于处理结果输出反馈信息。
第八方面，本申请实施例提供一种通信装置，该通信装置包括逻辑电路和接口，所述逻辑电路和所述接口耦合；所述逻辑电路，用于获取控制信息，以及基于该控制信息输出感知信号。
示例性的，逻辑电路，用于通过接口输入控制信息。
示例性的，接口，用于输入反馈信息。
第九方面，本申请实施例提供一种计算机可读存储介质，该计算机可读存储介质用于存储计算机程序，当其在计算机上运行时，使得上述第一方面或第一方面的任意可能的实现方式所示的方法被执行。
第十方面，本申请实施例提供一种计算机可读存储介质，该计算机可读存储介质用于存储计算机程序，当其在计算机上运行时，使得上述第二方面或第二方面的任意可能的实现方式所示的方法被执行。
第十一方面，本申请实施例提供一种计算机程序产品，该计算机程序产品包括计算机程序，当其在计算机上运行时，使得上述第一方面或第一方面的任意可能的实现方式所示的方法被执行。
第十二方面，本申请实施例提供一种计算机程序产品，该计算机程序产品包括计算机程序，当其在计算机上运行时，使得上述第二方面或第二方面的任意可能的实现方式所示的方法被执行。
第十三方面，本申请实施例提供一种计算机程序，该计算机程序在计算机上运行时，上述第一方面或第一方面的任意可能的实现方式所示的方法被执行。
第十四方面，本申请实施例提供一种计算机程序，该计算机程序在计算机上运行时，上述第二方面或第二方面的任意可能的实现方式所示的方法被执行。
第十五方面，本申请实施例提供一种无线通信系统，该无线通信系统包括发送端和接收端，所述发送端用于执行上述第二方面或第二方面的任意可能的实现方式所示的方法，所述接收端用于执行上述第一方面或第一方面的任意可能的实现方式所示的方法。
上述第三方面至第十五方面达到的技术效果可以参考第一方面或第二方面的技术效果或下文所示的方法实施例中的有益效果，此处不再重复赘述。
附图说明
图1a是本申请实施例提供的一种通信系统的架构示意图；
图1b是本申请实施例提供的一种通信系统的架构示意图；
图2a是本申请实施例提供的一种基于一个感知应答者的感知场景示意图；
图2b是本申请实施例提供的一种基于一个感知应答者的感知场景示意图；
图2c是本申请实施例提供的一种基于多个感知应答者的感知场景示意图；
图2d是本申请实施例提供的一种基于多个感知应答者的感知场景示意图；
图2e是本申请实施例提供的一种基于感知请求者的感知场景示意图；
图2f是本申请实施例提供的一种基于感知请求者的感知场景示意图；
图3是本申请实施例提供的一种发射序列的示意图；
图4是本申请实施例提供的一种基于感知的通信方法的流程示意图；
图5a是本申请实施例提供的一种归一化自相关结果的示意图；
图5b是本申请实施例提供的一种归一化自相关结果的示意图；
图5c是本申请实施例提供的一种归一化自相关结果的示意图；
图6是本申请实施例提供的一种通信装置的结构示意图；
图7是本申请实施例提供的一种通信装置的结构示意图；
图8是本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地描述。
本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等仅用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备等，没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元等，或可选地还包括对于这些过程、方法、产品或设备等固有的其它步骤或单元。
在本文中提及的“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员可以显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上，“至少两个(项)”是指两个或三个及三个以上，“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。“或”表示可以存在两种关系，如只存在A、只存在B；在A和B互不排斥时，也可以表示存在三种关系，如只存在A、只存在B、同时存在A和B。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”。
本申请实施例提供的技术方案可以适用于基于UWB技术的WPAN。如本申请实施例提供的方法可以适用于IEEE802.15系列协议，例如802.15.4a协议、802.15.4z协议或802.15.4ab协议，或者未来某代UWB WPAN标准等，这里不再一一列举。或者，本申请实施例提供的技术方案可以还可以应用于WLAN，如Wi-Fi中的IEEE802.11系列协议，例如802.11a/b/g协议、802.11n协议、802.11ac协议、802.11ax协议、802.11be协议或下一代的协议等，这里不再一一列举。示例性的，本申请实施例提供的技术方案可以支持Wi-Fi7，又可称为极高吞吐量(extremely high-throughput，EHT)，又如支持Wi-Fi8，又可称为超高可靠性(ultra highreliability，UHR)或超高可靠性和吞吐量(ultra highreliability and throughput，UHRT)等。或者，本申请实施例提供的方法还可以应用于各类通信系统，例如，可以是物联网(internet of things，IoT)系统、车联网(Vehicle to X，V2X)、窄带物联网(narrow band internet of things，NB-IoT)系统，应用于车联网中的设备，物联网(IoT，internet of things)中的物联网节点、传感器等，智慧家居中的智能摄像头，智能遥控器，智能水表电表，以及智慧城市中的传感器等。还可以适用于LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、长期演进(long term evolution，LTE)系统，也可以是第五代(5th-generation，5G)通信系统、第六代(6th-generation，6G)通信系统等。
UWB技术是一种新型的无线通信技术。它利用纳秒级的非正弦波窄脉冲传输数据，通过对具有很陡上升和下降时间的冲激脉冲进行调制，因此其所占用的频谱范围很宽，使信号具有吉赫(GHz)量级的带宽。UWB使用的带宽通常在1GHz以上。因为UWB系统不需要产生正弦载波信号，可以直接发射冲激序列，所以UWB系统具有很宽的频谱和很低的平均功率，UWB无线通信系统具有多径分辨能力强、功耗低、保密性强等优点，有利于与其他系统共存，从而提高频谱利用率和系统容量。另外，在短距离的通信应用中，UWB发射机的发射功率通常可以做到低于1毫瓦(mW)，从理论上来说，UWB信号所产生的干扰可以相当于白噪声。这样有助于超宽带与现有窄带通信之间的良好共存。因此，UWB系统可以实现与窄带(narrowband，NB)通信系统同时工作而互不干扰。本申请实施例提供的方法可以由无线通信系统中的通信装置实现，一个通信装置中，实现UWB系统功能的模块可以被称为UWB模块(如可以用于发送UWB脉冲)，实现窄带通信系统功能的模块可以被称为窄带通信模块，UWB模块和窄带通信模块可以为不同的装置或芯片等，本申请实施例对此不作限定。当然UWB模块和窄带通信模块也可以集成在一个装置或芯片上，本申请实施例不限制UWB模块和窄带通信模块在通信装置中的实现方式。示例性的，本申请实施例所示的感知信号可以由UWB模块发送。控制信息可以由UWB模块发送，或者，由窄带通信模块发送等，本申请实施例对此不作限定。
虽然本申请实施例主要以WPAN为例，尤其是应用于IEEE 802.15系列标准的网络为例进行说明。但是，本领域技术人员容易理解，本申请实施例涉及的各个方面可以扩展到采用各种标准或协议的其它网络。例如，无线局域网(wireless local area networks，WLAN)、蓝牙(BLUETOOTH)、高性能无线LAN(high performance radio LAN，HIPERLAN)(一种与IEEE 802.11标准类似的无线标准，主要在欧洲使用)以及广域网(WAN)或其它现在已知或以后发展起来的网络。因此，无论使用的覆盖范围和无线接入协议如何，本申请实施例提供的各种方面可以适用于任何合适的无线网络。
本申请实施例提供的方法可以由无线通信系统中的通信装置实现。该通信装置可以是UWB系统中涉及的装置。例如，该通信装置可以包括但不限于通信服务器、路由器、交换机、网桥、计算机、手机等。又例如，该通信装置可以包括中心控制点，如个人局域网(personal area network，PAN)或PAN协调者等。又例如，该通信装置可以包括用户设备(user equipment，UE)，该用户设备可以包括各种具有无线通信功 能的手持设备、车载设备、可穿戴设备、物联网(internet of things，IoT)设备、计算设备或连接到无线调制解调器的其它处理设备等，这里不再一一列举。又例如，该通信装置可以包括芯片，该芯片可以设置于通信服务器、路由器、交换机或用户终端中等，这里不再一一列举。
作为示例，图1a和图1b是本申请实施例提供的一种通信系统的架构示意图。图1a是本申请实施例提供的一种星型拓扑结构，图1b是本申请实施例提供的一种点对点拓扑结构。如图1a所示，在星型拓扑中，一个中心控制节点可以与一个或多个其他设备之间进行数据通信。如图1b所示，在点对点拓扑结构中，不同设备之间可以进行数据通信。图1a和图1b中，全功能设备(full function device)和低功能设备(reduced function device)都可以理解为本申请所示的通信装置。其中，全功能设备与低功能设备之间是相对而言的，如低功能设备不能是PAN协调者(coordinator)。又如低功能设备与全功能设备相比，该低功能设备可以没有协调能力或通信速率相对全功能设备较低等。可理解，图1b所示的PAN协调者仅为示例，图1b所示的其他三个全功能设备也可以作为PAN协调者，这里不再一一示出。
可理解，本申请实施例所示的全功能设备和低功能设备仅为通信装置的一种示例，但凡通信装置能够实现本申请实施例所提供的基于感知的通信方法，均属于本申请实施例的保护范围。下文所示的感知发起者和感知应答者等可以是全功能设备，也可以是低功能设备，本申请实施例对此不作限定。
本申请实施例提供的方法可以应用于通信装置，作为示例，本申请实施例所示的通信装置可以包括感知发起者(initiator)、感知应答者(responder)。感知发起者和感知应答者是相对而言的，如感知发起者为发起感知流程的一方，则感知应答者可以为根据发起感知流程的一方所作出应答的一方。例如，感知发起者可以是UWB信号的发射端，感知应答者是UWB回波信号的接收端。又例如，感知发起者可以是UWB回波信号的接收端，感知应答者是UWB信号的发射端。感知请求者可以理解为向感知发起者发起感知请求的一方。在感知发起者是UWB信号的发射端，感知应答者是UWB回波信号的接收端的情况下由于感知发起者发送的UWB信号需要先到达目标，然后到达感知应答者(如UWB信号经过目标反射或散射后到达感知应答者)，因此相对于感知发起者发送的UWB信号而言，感知应答者所接收到的信号可以称为UWB回波信号。可理解，为便于描述，下文中将UWB信号和UWB回波信号统称为UWB信号，不做区分。本申请实施例所示的UWB信号也可以称为感知信号或UWB脉冲(简称为脉冲)等。由于UWB信号应用于感知场景，因此该UWB信号也可以称为感知信号，可以理解的是，该感知信号也可以称为信号。
基于以上所示的感知发起者、感知应答者和感知请求者，本申请实施例提供了以下六种场景。可理解，图2a至图2f所示的场景仅为示例，不应将其理解为对本申请实施例的限定。
图2a和图2b可以理解为基于一个感知应答者的感知场景，如称为双站感知(bi-static sensing)，图2c和图2d可以理解为基于多个感知应答者的感知场景，如称为多站感知(multi-static sensing)。同时，图2a和图2c中，感知发起者是UWB回波信号的接收端，感知应答者是UWB信号的发射端。图2b和图2d中，感知发起者是UWB信号的发射端，感知应答者是UWB信号的接收端。图2e和图2f可以理解为基于感知发起者、感知应答者和感知请求者参与的感知场景，如称为代理感知(sensing by proxy)。
如图2a所示，感知发起者可以向感知应答者发送控制信息，从而感知应答者基于该控制信息可以发送感知信号。感知发起者接收感知信号，基于该控制信息和感知信号获得目标的相关信息，如目标的距离、角度、速度、衰减等信息。如图2b所示，感知发起者可以向感知应答者发送控制信息，以及基于该控制信息发送感知信号。感知应答者接收控制信息和感知信号，基于该控制信息和该感知信号获得目标的相关信息。可选的，感知应答者可以向感知发起者发送反馈信息，感知发起者通过反馈信息获得与目标相关的信息。该反馈信息用于反馈目标的相关信息。如图2c所示，感知发起者可以向多个感知应答者发送控制信息，从而该多个感知应答者中的感知应答者可以基于该控制信息可以发送感知信号。感知发起者接收来自多个感知应答者的感知信号，基于该控制信息和多个感知信号获得目标的相关信息。如图2d所示，感知发起者可以向多个感知应答者发送控制信息，以及基于该控制信息发送感知信号。该多个感知应答者中的感知应答者接收控制信息和感知信号，基于该控制信息和该感知信号获得目标的相关信息。可选的，该多个感知应答者中的感知应答者可以向感知发起者发送反馈信息，感知发起者可以通过多个反馈信息获得与目标相关的信息。如图2e所示，感知请求者可以向感知发起者发送感知请求，感知发起者向感知应答者发送控制信息，感知应答者基于该控制信息发送感知信号，感知发起者接收感知信号，基于控制信息和感知信号获得目标的相关信息。可选的，感知发起者可以向感知请求者发送反馈信息。如图2f所示，感知请求者向感知发起者发送感知请求，感知发起者向感知应答者发送控制信息，感知发起者基于该控制信息发送感知信号。感知应答者基于控制信息和感知信号获得目标的相关信息。可选的，感知应答者发送反馈 信息，感知发起者接收该反馈信息，向感知请求者发送该反馈信息。
图4所示的方法可以应用于发送端和接收端，该发送端可以理解为感知信号的发送端或者，感知信号的发射端，该接收端可以理解为感知信号的接收端。
示例性的，如发送端可以包括全功能设备，接收端可以包括低功能设备；又如发送端可以包括低功能设备，接收端包括低功能设备；又如发送端包括低功能设备，接收端包括全功能设备；又如发送端和接收端都是全功能设备。
示例性的，发送端可以包括图2a所示的感知应答者，接收端可以包括图2a所示的感知发起者。又如，发送端可以包括图2b所示的感知发起者，接收端可以包括图2b所示的感知应答者。又如，发送端可以包括图2c所示的感知应答者，接收端可以包括图2c所示的感知发起者。又如，发送端可以包括图2d所示的感知发起者，接收端可以包括图2d所示的感知应答者。又如，发送端可以包括图2e所示的感知应答者，接收端可以包括图2e所示的感知发起者。又如，发送端可以包括图2f所示的感知发起者，接收端可以包括图2f所示的感知应答者。可理解，基于图2a至图2f所列举的发送端和接收端仅为示例，但凡能够实现本申请实施例提供的方法的装置均属于本申请实施例的保护范围，因此不应将上述列举示出的发送端和接收端理解为对本申请实施例的限定。可理解，本申请实施例是以发送端和接收端两侧来描述本申请实施例提供的方法的，但是该发送端和接收端在传输信息的过程中，还可以有其他装置的存在，如通过转发装置来转发发送端与接收端之间的信息等。因此，本申请实施例中信息的互相传递以本领域技术人员可以完成的技术手段实现即可，本申请实施例对于发送端和接收端之外的其他装置不作限定。
以上关于通信系统、发送端、接收端的说明下文同样适用。
目前存在一种脉冲簇的发射方式，该多个脉冲簇中的脉冲可以使用序列集进行编码，例如，+1对应一个正脉冲，-1对应一个负脉冲，0对应无脉冲，或者，+1对应一个负脉冲，-1对应一个正脉冲，0对应无脉冲。目前存在的脉冲簇的发射方式中，序列集中相邻序列之间的循环移位位数均相同。示例性的，该序列集中的序列可以包括三个元素，如+1、-1和0。一般来说，序列集中的序列可以包括三元序列(如ipatov序列)及其循环移位序列，该三元序列可以具有完备的周期自相关特性，同时该三元序列的循环移位序列也具有完备的周期自相关特性。由于序列集中的序列具有周期自相关特性，因此该序列集也可以称为周期零相关区(zero correlation zone，ZCZ)序列集。示例性的，关于ipatov序列的相关说明可以参考IEEE802.15.4z-2020.chapter15或IEEE802.15.4-2020.chapter15，本申请实施例对ipatov序列的具体内容不再一一列举。下文所示的三元序列可以理解为ipatov序列。完备的周期自相关特性可以理解为周期自相关的主瓣幅度等于序列中非零元素的个数，旁瓣幅度为0。
三元序列通过循环移位可生成具有周期ZCZ的序列集。将周期ZCZ序列集中的序列作为发射序列(也可以称为发射波形序列)，可以有效降低旁瓣幅度，从而降低波形间的干扰，以及增加不模糊距离。图3是本申请实施例提供的一种发射序列的示意图。如图3所示，图3所示的发射(transmitted)表示发射序列，两个横线之间表示发射序列。或者，图3所示的发射表示感知信号的接收端接收到的通过直射径传输的信号。每一行表示一个脉冲簇，每个脉冲簇中有3个脉冲(pulse)(仅为示例)，图3中的每一列表示一条三元序列及其循环前后缀。其中，两条横线之间的部分表示不同循环移位的序列集，第一条横线之上的部分是循环前缀，第二条横线之下的部分是循环后缀。图3中所示三元序列的长度为6(即三元序列的元素个数为6个)，图3所示的3个序列的循环移位位数依次为0(第一个序列相对于基准序列的循环移位位数为0)，2(第二个序列相对于第一个序列的循环移位的位数为2)，4(第三个序列相对于第一个序列的循环移位的位数为2)，循环前后缀的长度为2。
发送端每次发射一个脉冲簇，经过脉冲簇重复间隔(burst repetition interval，BRI)之后，再发射下一个脉冲簇。接收端利用序列集的自相关特性，使用三元序列及其移位序列作为本地序列与接收到的信号做相关，根据相关的峰值位置等信息实现感知的测量。图3所示的掩藏的目标(maskedtarget)可以理解为反射径的延迟时间与直射径的延迟时间接近，或者，反射径的延迟时间小于图3所示的靠近目标和距离远的目标对应的延迟时间。接收端基于接收到的信号只恢复出两个序列的原因在于：接收端还没接收到所有的基于直射径传输的信号，就已经接收到了基于反射径传输的信号，从而导致基于直射径传输的信号掩盖了基于反射径传输的信号。距离远的目标(far-awaytarget)可以理解为距离发送端远的目标，如发送端发送脉冲簇之后，接收端还未接收到该脉冲簇，发送端又发送了一个脉冲簇，从而导致接收端可能在发送端又发送一个脉冲簇之后，才接收到前一个脉冲簇的回波。可理解，图3所示的掩藏的目标、靠近目标(close-bytarget)和距离远的目标可以理解为基于感知信号检测到的三个目标，反射径的延迟时间依次递 增。
一般来说，在循环前缀和循环后缀的长度固定的情况下，该循环前缀和循环后缀可以基于图3所示的两个横线之间的序列得到。因此为便于简洁，本申请实施例所示的发射序列可以理解为图3所示的横线之间的序列。可理解，图3所示的序列的长度、一个脉冲簇中包括的脉冲个数、循环前缀的长度、循环后缀的长度等仅为示例，不应将其理解为对本申请实施例的限定。
图3中所示的序列(两条横线之间的序列)、脉冲簇、脉冲、感知信号之间的关系可以如下所示：
每一列可以表示一个序列，序列的长度等于短突发的数量，序列的个数对应每个短突发内的脉冲个数。每个短突发内的脉冲由每个序列的对应元素确定，如序列的长度为N，则第i个短突发内的脉冲由每个序列中的第i个元素确定，i为大于或等于1且小于或等于N的整数。如第i个元素包括+1，则对应正脉冲，第i个元素包括-1，则对应负脉冲，第i个包括0，则对应无脉冲；又如第i个元素包括+1，则对应负脉冲，第i个元素包括-1，则对应正脉冲，第i个包括0，则对应无脉冲。发送端发送的脉冲可以理解为感知信号。可理解，一个短突发内的多个脉冲还可以称为一个脉冲簇。
循环前缀可以基于循环前缀的长度以及序列确定，循环后缀可以基于循环后缀的长度及序列确定。示例性的，循环前缀的长度为x1，则与循环前缀对应的短突发个数为x1，短突发内的脉冲可以由循环前缀的对应元素确定。示例性的，循环后缀的长度为x2，则与循环后缀对应的短突发个数为x2，短突发内的脉冲可以由循环后缀的对应元素确定。x1+x2＝x，则发送端在一个感知时隙中发送的短突发的个数为N+x。x1、x2和x均为正整数。
这里所示的关于序列、脉冲簇、脉冲、感知信号、循环前缀和循环后缀的说明下文同样适用。
以上所示的脉冲簇的发射方式中，周期ZCZ序列集中的任意两个相邻序列之间的相对循环移位位数相同。如图3所示，第二个序列相对于第一个序列的循环移位的位数与第三个序列相对于第二个序列的循环移位的位数相同。也就是说，周期ZCZ序列集中的相邻序列由三元序列依次相对前一序列进行相同位数的循环移位构成。由于相邻序列的相对循环移位的位数相同，则感知信号的接收端在执行相关操作时，旁瓣很大可能会出现重叠，从而导致旁瓣幅度较高，进而导致接收端无法有效确定出峰值位置，无法有效确定出ZCZ(即零相关区的位置判断会不准确)，导致感知结果的准确性不高。以及由于相对循环移位位数相同且已知，很容易使不是真正接收端的通信装置生成正确的本地序列，从而与接收到的序列做相关之后，监听到目标的信息，造成目标的相关信息泄露。
鉴于此，本申请实施例提供一种基于感知的通信方法及装置，相邻序列之间的相对循环移位位数中至少有两个相对循环移位位数的取值不同，从而降低非零相关区的旁瓣幅度，有效提高零相关区的位置的判断准确性，提高感知结果的准确性。有效改善由于任意两个相邻序列之间的相对循环移位位数相同而导致非零相关区的旁瓣幅度高的情况，提高零相关区位置的判断准确性，从而有效提高感知结果的准确性。可选的，相邻序列之间的相对循环移位位数中至少有两个相对循环移位位数的取值不同，使得不是真正接收端的通信装置无法获知本地序列，避免其监听到目标的信息，有效改善目标的相关信息泄露的情况，增加了感知的安全性。
在介绍本申请实施例提供的方法流程之前，以下详细说明本申请实施例所示的相对循环移位位数、循环移位参数(如M个循环移位位数)以及控制信息。
一、相对循环移位位数
相对循环移位位数可以理解为一个序列相对于另一个序列的循环移位位数。这里所示的两个序列可以理解为M个序列中的相邻序列。示例性的，M个序列中的第j个序列与第j+1个序列属于相邻序列，或者，第j个序列与第j-1个序列也属于相邻序列。同时，M个序列中的第一个序列与最后一个序列也属于相邻序列。j为大于或等于1且小于或等于M的整数。
可理解，M个序列中相邻序列包括该M个序列中的最后一个序列和第一个序列。因此，M个序列可以对应M个相对循环移位位数，但是为便于通信双方能够有效地确定M个序列中的每个序列，因此循环移位参数所指示的M个循环移位位数中与第一个序列对应的循环移位位数可以由该第一个序列相对于基准序列的循环移位位数确定。举例来说，循环移位参数包括M个序列中相邻序列的相对循环移位位数的情况下，该循环移位参数中可以不包括第一个序列相对于最后一个序列的循环移位位数。因为如果循环移位参数中包括第一个序列相对于最后一个序列的循环移位位数、第二个序列相对于第一个序列的循环移位位数等，依次类推，则通信双方无法有效地基于基准序列确定M个序列中的任何一个序列。本申请实施例在涉及到相对循环移位位数的具体取值的相关说明中，相对循环移位位数可以包括第一个序列相对于最后一 个序列的循环移位位数，相邻序列可包括M个序列中的第一个序列与最后一个序列，但是在涉及到循环移位参数中的相对循环移位位数的相关说明中，相对循环移位位数不包括第一个序列相对于最后一个序列的循环移位位数。
当然，通信双方基于M个序列所对应的M个相对循环移位位数，可以确定出该M个序列中的每个序列的情况下，循环移位参数中的相对循环移位位数可以包括M个序列中的第一个序列相对于最后一个序列的循环移位位数。
需要说明的是，本领域技术人员可以理解关于相对循环移位位数的一些特征说明(如下文所示的第二项～第四项中的至少一项)还可以适用于如下类型的循环移位位数：如M个序列中的非第一个序列相对于第一个序列的循环移位位数(如适用于第二项和第四项)；又如M个序列中的每个序列相对于基准序列的循环移位位数(如适用于第二项和第四项)。类似的，关于相对循环移位位数的特征说明还可以适用于：如M个循环移位位数与循环移位位数阈值的偏移量(如适用于第二项和第四项)；又如M个序列中相邻序列的相对循环移位位数与循环移位位数阈值的偏移量(如适用于第二项～第四项)等，这里不再一一列举。
本申请实施例所示的相对循环移位位数的取值可以满足如下至少一项：
第一项、相对循环移位位数大于或等于循环移位位数阈值(也可以理解为相对循环移位位数的取值大于或等于循环移位位数阈值的取值)，该循环移位位数阈值基于相邻短突发之间的间隔确定。
示例性的，循环移位位数阈值基于相邻短突发之间的间隔、光速确定。示例性的，该循环移位位数阈值基于相邻短突发之间的间隔、光速、感知范围确定。该感知范围可以理解为感知信号的感知范围，或者，通信双方基于先验信息确定的感知范围等，本申请实施例对于该感知范围的具体取值不作限定。该循环移位位数阈值还可以称为最小的循环移位位数或最小循环移位位数等。可理解，相对循环移位位数大于或等于循环移位位数阈值，但是基于M个循环移位位数确定的M个相对循环移位位数中的最小值(即M个循环移位位数对应的实际的最小相对循环移位位数)不一定是循环移位位数阈值，如可能大于该循环移位位数阈值。
示例性的，该循环移位位数阈值可以满足如下公式：
其中，Nmin表示循环移位位数阈值，R表示感知范围，c表示光速，BRI表示脉冲簇之间的间隔。可理解，脉冲簇之间的间隔可以理解为相邻短突发之间的间隔。
需要说明的是，M个序列中第j个序列与第j+1个序列是相邻序列，该第j个序列与第j-1个序列是相邻序列，M个序列中的最后一个序列与该M个序列中的第一个序列也是相邻序列。
第二项、第一个短突发具有良好的自相关特性。
这里所示的第一个短突发不包括循环前缀对应的短突发，不包括循环后缀对应的短突发，如可以理解为M个序列中由每个序列中的第一个元素确定的短突发。在一段时间内的第一个短突发具有良好的自相关特性。例如，该一段时间可以理解为基于控制信息中的循环移位参数确定的M个序列对应的时间段。示例性的，该一段时间与循环前缀对应的时间以及循环后缀对应的时间之和可以统称为感知时隙(sensing slot)，如在一个感知时隙内，感知信号的发送端可以发送如图3所示的三个序列对应的10个短突发内的脉冲。又如，在一个感知时隙内，感知信号的发送端可以发送M个序列对应的N+x个短突发内的脉冲，N表示序列的长度，x表示循环前缀和循环后缀的长度之和。
良好的自相关特性可以理解为主瓣幅度和旁瓣幅度的比值大于或等于某个阈值。对于该某个阈值的具体取值，本申请实施例不作限定。第一个短突发具有良好的自相关特性，可以使得接收端更容易找到直射径到达的位置，从而接收端找到直射径到达的位置(如图5a和图5b中的原点)之后，可以删除该直射径所在位置之前的缓存(buffer)，有效减少了接收端的缓存大小。可理解，接收端基于第一个短突发确定直射径到达的位置之后，后续短突发的位置可以随着确定。因此，对于后续短突发的自相关特性，本申请实施例不作限定。
第三项、M个序列中相邻序列的相对循环移位位数中可以至少有两个相对循环移位位数不同。
如果相邻序列之间均使用相同的相对循环移位位数，则非零相关区的旁瓣幅度会比较高，如图5a所示，图5a示出了接收端的归一化自相关结果。图5a中的横坐标表示采样点(也可以为timeshift)，单位为码片，纵坐标表示归一化自相关的结果。从图5a可以看出，在零相关区内，除了直射径(line of sight，LOS)径之外(如图5a原点所在位置)，还有3个非直射径(non-line of sight，NLOS)径，分别对应3个目标。在非零相关区内，除了有LOS径和NLOS径之外，还存在一些自相关旁瓣。因此，接收端需要通过寻找 最高峰值所在的位置，根据最高峰所在位置判断ZCZ的起始位置，基于相对循环移位位数中的最小循环移位位数和相邻短突发之间的间隔获得ZCZ的长度，从而获得ZCZ的准确位置，得到目标数量及目标距离等信息。然而，当存在噪声等非理想因素的情况下，旁瓣幅度有可能高于主瓣幅度。从而导致接收端无法有效确定ZCZ的准确位置，降低了接收端感知的准确性。示例性的，图5a中的ZCZ长度可以等于相对循环移位位数中的最小循环移位位数*相邻短突发之间的间隔/2。示例性的，ZCZ长度可以等于相对循环移位位数中的最小循环移位位数*相邻短突发之间的间隔*光速/2。
然而，本申请实施例中，有效改善使用相同位数的相对循环移位位数的情况。如图5b所示，图5b示出的是包括至少两个不同的相对循环移位位数时，接收端的归一化自相关结果示意图。从图5b可以看出，通过使用不同的相对循环移位位数，有效降低了非ZCZ区域的旁瓣幅度。从而接收端可以有效地找到最高的峰值，有效保证接收端能够准确地确定ZCZ，提高接收端感知的准确性。
第四项、在不同感知时隙内，循环移位位数可以发生变化。
可理解，当循环移位位数发生变化时，如果接收端本地存储的M个循环移位位数与发送端的不一致，则接收端无法有效提取目标的相关信息。如图5c所示，图5c所示的场景与图5a一致，均包括三个目标。然而，由于通信双方保存的M个循环移位位数不同，因此图5c中的ZCZ中包括多个峰值，从而导致接收端无法分辨出有效目标。
因此，本申请实施例中，通信双方可以通过控制信息获取循环移位位数，或者，通过控制信息获取循环移位位数、基准序列、短突发的脉冲数量等，从而保证通信双方获取到的信息具有一致性。示例性的，循环移位参数指示的M个循环移位位数可以不变，或者，该循环移位参数指示的M个循环移位位数可以在不同感知时隙内进行变化。本申请实施例对于感知时隙的数量不作限定，一般来说，该感知时隙的数量可以由通信双方约定，或者，由协议定义等，不再一一列举。
本申请实施例中，真正的接收端(如合法的通信装置)可以基于控制信息获取循环移位位数，而不是真正的接收端(非法的监听设备)，由于无法有效获取循环移位位数，因此其有效获取M个序列，从而无法提取出目标的信息，从而有效提高了感知的安全性，有效保护了目标的相关信息。
基于上文介绍的第一项至第三项中的至少一项确定的循环移位位数的取值均属于本申请实施例的保护范围。作为示例，表1是本申请实施例提供的循环移位位数的不同例子。表1所示的循环移位位数中的第一个位数为序列相对于基准序列的循环移位位数，其他位数为对应序列相对于基准序列的循环移位位数。示例性的，表1所示的基准序列为{1,1,1,1,1,-1,1,0,-1,1,-1,0,-1,-1,-1,1,-1,-1,0,1,-1,1,1,-1,-1,1,1,0,-1,1,-1,1,0,0,1,0,1,1,1,1,-1,-1,-1,1,1,0,1,1,1,-1,-1,-1,1,1,-1,1,-1}。以循环移位位数中的第一行为例，序列长度为57(不包括循环前缀和循环后缀)，M＝4，第一个序列相对于基准序列的循环移位位数为1，第二个序列相对于基准序列的循环移位位数为14，即第二个序列与第一个序列的相对循环移位位数为13。第三个序列相对于基准序列的循环移位位数为23，即第三个序列与第二个序列的相对循环移位位数为9。第四个序列相对于基准序列的循环移位位数为35，第四个序列与第三个序列的相对循环移位位数为12。第一个序列与第四个序列也是相邻序列，第一个序列相对于第四个序列的循环移位位数为23。
可理解，表1是以序列长度为57，即包括57个元素(元素包括+1、0、-1)为例，以及一个短突发中包括4～8个脉冲为例示出的，但是不应将其理解为对本申请实施例的限定。
可理解，表1所示的循环移位位数仅为示例，在序列的长度为57，一个短突发中包括4个脉冲时，循环移位位数还可以有其他取值，不再一一列举。对于其他长度的序列、脉冲数量、循环移位位数的例子，本申请实施例不再示出。
表1



以上所示的关于相对循环移位位数的说明，下文均适用，下文不再赘述。
二、循环移位参数
循环移位参数用于指示M个循环移位位数，该M个循环移位位数对应M个序列。该M个循环移位位数对应M个序列可以理解为：该M个循环移位位数与M个序列之间具有对应关系；或者，该M个循环移位位数可以用于确定M个序列；或者，该M个序列中序列之间的循环移位位数由M个循环移位位数确定。举例来说，M大于或等于2时，M个循环移位位数中的第j个循环移位位数可以对应M个序列中的第j个序列，如第j个序列相对于某个序列的循环移位位数等于第j个循环移位位数，j为大于或等于1且小于或等于M的整数。对于M个序列来说，上述某个序列可以包括基准序列、第j-1个序列、第j+1个序列、第一个序列中的至少一项。作为一个示例，该某个序列可以为M个序列中的第j-1个序列。作为另一个示例，该某个序列可以为M个序列中的第一个序列。作为又一个示例，该某个序列可以为基准序列。可理解，不管上述某个序列如何设置，M个循环移位位数对应的M个序列中相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同；或者，可以理解为基于循环移位参数确定的M个序列中相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同。
本申请实施例中，第j个序列相对于某个序列的循环移位位数可以是该第j个序列相对于某个序列的向左循环移位的位数，或者，是第j个序列相对于某个序列的向右循环移位的位数。一般来说，M个循环移位位数均是向左循环移位的位数，或者，均是向右循环移位的位数。
可理解，以上所示的循环移位参数也可以理解为：该循环移位参数用于指示M个序列对应的M个循环移位位数；或者，该循环移位参数用于指示M个序列对应的循环移位位数。
可理解，通信双方基于循环移位参数确定的M个序列的循环移位序列，或者，M个序列的取反序列，或者，M个序列的逆序序列等均可以作为发射序列。只要通信双方对发射序列的理解达到一致即可。
示例性的，M＝1，即循环移位参数用于指示一个循环移位位数，该循环移位位数为序列相对于基准序列的循环移位位数。作为一个示例，该基准序列可以基于控制信息中的序列标识、序列长度中的至少一项确定。如控制信息还可以包括序列标识，该序列标识可以用于指示基准序列。又如控制信息还可以包括序列长度，该序列长度可以用于指示基准序列的长度。如序列长度为57(即序列中的元素为57个)，则通信双方可以确定基准序列的长度为57，从而从三元序列中查找长度为57的序列，或者，从具有完备的周期自相关特性的序列中查找长度为57的序列。控制信息中通过包括序列长度或序列标识中的至少一项，可使得通信双方基于该序列长度或序列标识明确获知基准序列，提高通信双方交互的效率。作为另一个示例，该基准序列可以由步骤401所示的控制信息之前的控制信息指示。如为节省信令开销，在基准序列不变的情况下，该通信双方可以基于步骤401所示的控制信息之前的包括序列长度或序列标识至少一项的控制信息确定基准序列。作为又一个示例，基准序列可以为通信双方经过协商后的序列，或者，可以为协议定义的序列。本申请实施例对于基准序列的设置方法不作限定。
举例来说，M＝1时，循环移位参数用于指示一个循环移位位数包括：该循环移位参数包括该循环移位位数相对于某个值的偏移量。该某个值可以由通信双方约定，或者，由协议定义等，本申请实施例对此不作限定。通过偏移量的方式指示序列相对于基准序列的循环移位位数可以有效节省信令开销。又举例来说，该循环移位参数可以包括序列相对于基准序列的循环移位位数，该种方式，可以使得通信双方明确获知循环移位位数，更简单。又举例来说，该循环移位参数可以包括随机数生成算法的信息和随机数的比特数。通过随机数生成算法生成多个比特，然后从多个比特中选取一定比特数(与循环移位参数中指示的比特数一致)，该一定比特数表示的数值(如十进制数值)为循环移位位数。例如，通信双方可以用该一定比特数表示的数值作为序列相对于基准序列的循环移位位数；或者，通信双方可以用该一定比特数表示的数值与循环移位位数阈值的和作为序列相对于基准序列的循环移位位数。通过随机数的生成算法确定循环移位位数，安全性更高。
本申请实施例中，M＝1时，通信双方通过控制信息达到对循环移位位数的理解一致，从而有效避免了由于通信双方对循环移位位数的理解不一致导致的感知结果不准确的情况，提高了感知结果的准确性。
示例性的，M＝2，即循环移位参数用于指示2个循环移位位数。例如，该2个循环移位位数包括2个序列中的一个序列相对于基准序列的循环移位位数和这2个序列的相对循环移位位数。又例如，M个循环移位位数包括M个序列中的序列相对于基准序列的循环移位位数。可理解，M＝2时，关于循环移位参数用于指示M个循环移位位数的方式可以示例性地参考下文M大于2时的描述。
示例性的，M大于2，循环移位参数用于指示M个循环移位位数，该M个循环移位位数对应的M个序列中相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同。
作为一个示例，M个序列中的第一个序列相对于基准序列的循环移位位数可以为M个循环移位位数中的第一个位数。又如该M个序列中第二个序列相对于第一个序列的循环移位的位数为该第二个位数。又如M个序列中的第三个序列相对于第二个序列的循环移位的位数为该第三个位数。又如M个序列中的第四个序列相对于第三个序列的循环移位的位数为该第三个位数。以此类推，这里不再一一列举。
作为另一个示例，M个序列中的第一个序列相对于基准序列的循环移位位数可以为M个循环移位位数中的第一个位数。又如该M个序列中第二个序列相对于第一个序列(或基准序列)的循环移位的位数为该第二个位数。又如M个序列中的第三个序列相对于第一个序列(或基准序列)的循环移位的位数为该第三个位数。又如M个序列中的第四个序列相对于第一个序列(或基准序列)的循环移位的位数为该第三个位数。以此类推，这里不再一一列举。
循环移位参数用于指示M个循环移位位数可以包括如下方式：
作为一个示例，循环移位参数可以包括M个循环移位位数，该M个循环移位位数包括M个序列中相邻序列的相对循环移位位数。如M个循环移位位数可以依次是M个序列中的第一个序列相对于基准序列的循环移位位数、M个序列中第二个序列相对于第一个序列的循环移位位数、M个序列中第三个序列相对于第二个序列的循环移位位数、…、M个序列中第M个序列相对于第M-1个序列的循环移位位数。或者，循环移位参数可以包括M个循环移位位数，该M个循环移位位数可以是第一个序列相对于基准序列的循环移位位数以及M个序列中相邻序列之间的循环移位位数。
示例性的，表2是本申请实施例提供的一种循环移位参数的示意。
表2

可理解，表2所示的序列1表示M个序列中的第一个序列，序列2表示M个序列中的第二个序列，依次类推，序列M表示M个序列中的第M个序列。
示例性的，序列1的循环移位位数可以是序列1相对于基准序列的循环移位位数，或者，序列1相对于基准序列的循环移位位数与循环移位位数阈值(或第一循环移位位数)的偏移量等。序列2的循环移位位数可以是序列2相对于序列1的循环移位位数，或者，序列2相对于序列1的循环移位位数与循环移位位数阈值(或第一循环移位位数)的偏移量等。序列3的循环移位位数可以是序列3相对于序列2的循环移位位数，或者，序列3相对于序列1的循环移位位数，或者，序列3相对于序列2的循环移位位数与循环移位位数阈值(或第一循环移位位数)的偏移量，或者，序列3相对于序列1的循环移位位数与循环移位位数阈值(或第一循环移位位数)的偏移量。以此类推，这里不再一一列举。
作为另一个示例，循环移位参数可以包括M个序列中非第一个序列相对于第一个序列的循环移位位数和第一个序列相对于基准序列的循环移位位数。例如，循环移位参数包括M个序列中第一个序列相对于基准序列的循环移位位数、M个序列中第二个序列相对于第一个序列的循环移位位数、M个序列中第三个序列相对于第一个序列的循环移位位数，依次类推。也就是说，循环移位参数中可以包括M个序列中的第一个序列相对于基准序列的循环移位位数以及M个序列中的非第一个序列相对于第一个序列的循环移位位数。
作为又一个示例，循环移位参数包括M个序列中非第一个序列相对于第一个序列的循环移位位数与循环移位位数阈值的偏移量，以及第一个序列相对于基准序列的循环移位位数与循环移位位数阈值的偏移量。示例性的，循环移位参数可以包括M个序列中的第一个序列相对于基准序列的循环移位位数与循环移位位数阈值的偏移量、M个序列中第二个序列相对于第一个序列的循环移位位数与循环移位位数阈值的偏移量、M个序列中第三个序列相对于第一个序列的循环移位位数与循环移位位数阈值的偏移量，依次类推。
作为又一个示例，循环移位参数可以包括M个序列中相邻序列的相对循环移位位数与循环移位位数阈值的偏移量，以及第一个序列相对于基准序列的循环移位位数与循环移位位数阈值的偏移量。示例性的，循环移位参数可以包括M个序列中的第一个序列相对于基准序列的循环移位位数与循环移位位数阈值的偏移量、M个序列中第二个序列相对于第一个序列的循环移位位数与循环移位位数阈值的偏移量、M个序列中第三个序列相对于第二个序列的循环移位位数与循环移位位数阈值的偏移量，依次类推。
可理解，以上所示的偏移量的方式中，循环移位位数阈值仅为示例，如该循环移位位数阈值可以替换为第一个序列相对于基准序列的循环移位位数。示例性的，M个序列中第一个序列相对于基准序列的循环移位位数为第一循环移位位数，则循环移位参数可以包括0、M个序列中第二个序列相对于第一个序列的循环移位位数与第一循环移位位数的偏移量、M个序列中第三个序列相对于第一个序列的循环移位位数与第一循环移位位数的偏移量，依次类推。示例性的，循环移位参数可以包括0、M个序列中第二个序列相对于第一个序列的循环移位位数与第一循环移位位数的偏移量、M个序列中第三个序列相对于第二个序列的循环移位位数与第一循环移位位数的偏移量，依次类推。
可理解，在通过偏移量的方式指示M个循环移位位数的情况下，控制信息中可以包括上述循环移位位数阈值或第一循环移位位数。控制信息中通过包括循环移位位数阈值和第一循环移位位数可使得通信双方有效获知M个循环移位位数的具体确定方式。
通过偏移量的方式指示M个循环移位位数可以有效节省信令开销。
作为又一个示例，循环移位参数包括随机数生成算法的信息、随机数的比特数，随机数生成算法和随机数的比特数用于确定M个循环移位位数。也就是说，通信双方均基于随机数生成算法生成一些随机数，这些随机数可以作为M个序列的循环移位位数。可理解，发送端和接收端生成的随机数需要保持一致。由此，在未通过控制信息更新循环移位参数的情况下，通信双方均可以通过随机数生成算法生成相同的随机数。
通过配置一个种子，收发双发通过该种子生成相同的随机数，基于随机数和随机数的比特数确定循环移位位数，如表3所示。
表3

其中，种子类型表示随机数的生成算法。示例性的，种子类型取值为0表示通过加扰时间戳序列(scrambled timestamp sequence，STS)(如AES-128算法)生成随机数；种子类型取值为1表示通过线性反馈移位寄存器(linear feedback shift register，LFSR)生成随机数。
随机位数表示一个循环移位位数所对应的比特数，通信双方基于随机数的生成算法生成的随机数和该随机位数可以确定每个序列的循环移位位数。
STS参数(STS Parameter)与种子类型对应，如种子类型表示通过STS生成随机数时存在该STS参数。示例性的，当种子类型取值为0时存在该STS参数，其中，Octets 0-11表示StsVUpper96，Octets 12-15表示StsVCounter，Octets 16-31表示STS密钥(StsKey)。其中，StsVUpper96和StsVCounter共同构成128比特(以AES-128为例是128比特)的STS数据。当种子类型取值为1时不存在该STS参数。
LFSR参数(LFSR Parameter)与种子类型对应，如种子类型表示通过LFSR生成随机数时存在该LFSR参数。示例性的，当种子类型取值为1时存在该LFSR参数，表3中的LFSR参数可以表示LFSR的初始状态，初始状态包含的比特数等于LFSR中的移位寄存器数量。当种子类型取值为0时不存在LFSR参数。
举例来说，当种子类型取值为0时，通信双方可以根据STS参数的输入生成128比特的输出，然后从这128比特中依次取与随机位数一致的比特数，根据与随机位数一致的比特数确定循环移位位数。示例性的，随机位数为4个比特，则通信双方可以从128个比特中依次取4个比特，每4个比特依次对应上述M个循环移位位数。示例性的，M个循环移位位数可以等于循环移位位数阈值与输出的随机数表示的数值之和。又举例来说，当种子类型取值为1时，根据LFSR参数的输入，每次产生1比特，基于随机位数对应的比特数确定循环移位位数。示例性的，随机位数为4个比特，则通信双方可以从LFSR的输出中依次取4个比特，每4个比特依次对应上述M个循环移位位数；或者，M个循环移位位数可以等于循环移位位数阈值与每4个比特表示的数值之和。
示例性的，M个序列中相邻序列的相对循环移位位数与循环移位位数阈值的差可以依次表示为：R1、R2、…、RM，则M个循环移位位数可以满足如下公式：
其中，Nmin表示循环移位位数阈值，M表示序列的个数，N表示序列的长度。示例性的，R1表示序列相对于基准序列的循环移位位数与循环移位位数阈值的差。
基于上述公式可知，随机位数的取值B可以满足如下公式：
关于各个参数的说明可以参考上述公式，这里不作详述。
三、控制信息
控制信息可以包含于物理层(physicallayer，PHY)协议数据单元(protocoldataunit，PPDU)中，该控制信息可以称为脉冲簇感知配置信息单元(informationelement，IE)等，本申请实施例对于该控制信息的具体名称不作限定。示例性的，通信双方可以在感知控制阶段(sensingcontrolphase)进行控制信息的交互。可选的，在一个感知轮(sensinground)通信双方可以进行控制信息的交互，一个感知轮可以包括多个感知时隙，对于一个感知轮包括的感知时隙的数量，本申请实施例不作限定。作为一个示例，通信双方可以通过一个感知轮进行一次控制信息的交互。作为另一个示例，通信双方可以在多个感知轮中进行一次控制信息的交互，即该多个感知轮所对应的控制信息均相同。如循环移位参数未更新的情况下，发送端可以通过最近一个包括循环移位参数的控制信息发送感知信号，接收端可以通过最近一个包括循环移位参数的控制信息进行处理。
可理解，当采用脉冲簇的感知模式，且使用周期ZCZ序列时，控制信息可以包括循环移位参数，以及还包括短突发内的脉冲数量、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔、序列标识、序列长度、第一序列类型、使用不同的循环移位位数的类型(或使用相同的循环移位位数的类型)中的至少一项。采用上述方式，由于采用脉冲簇的发射方式，因此不模糊距离较大，有效提高了发射功率，增加了感知范围。
示例性的，当M＝1时，控制信息可以包括循环移位参数，以及还包括短突发内的脉冲数量为1、短突发内相邻脉冲之间的间隔(等于相邻短突发之间的间隔)、序列标识、序列长度、第一序列类型中的至少 一项。
当采用脉冲簇的感知模式，且使用非周期ZCZ序列时，可以包括短突发内的脉冲数量、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔、序列标识、序列长度中的至少一项。
示例性的，通信双方使用的非周期ZCZ序列可以如表4所示，可理解，表4仅为示例，不应将其理解为对本申请实施例的限定。表4中的s1～s16可以理解为非周期ZCZ序列，索引为0的序列集表示该序列集中包括8个非周期ZCZ序列，索引为1的序列集表示该序列集中包括16个非周期ZCZ序列，索引为2的序列集表示该序列集中包括4个非周期ZCZ序列，索引为3的序列集表示该序列集中包括4个非周期ZCZ序列。
表4


本申请实施例中，控制信息包括如下至少一项：
循环移位参数、短突发内的脉冲数量(pulse per burst)、短突发内相邻脉冲之间的间隔(pulse interval within burst)、相邻短突发之间的间隔(burst repetition interval)、序列标识(或称为序号指示(index indication)、序列长度(sequence length)、序列类型(sequence type)、循环移位的类型(cyclic shift type)。
以下详细介绍上述各个信息。
作为一个示例，短突发内的脉冲数量的取值可以表示发送端在一个短突发内所发送的最多脉冲数量。如短突发内的脉冲数量可以用于指示一个短突发内的脉冲数量(或码片数量)，该脉冲数量可以等于序列的个数。这里所示的脉冲数量是以序列的个数为例示出的，至于一个短突发内的具体脉冲还需要根据M个序列中的第i个元素确定。示例性的，短突发内的脉冲数量取值可以为4，表示发送端在一个短突发内最多可以发送4个脉冲。示例性的，短突发内的脉冲数量取值可以为5，表示发送端在一个短突发内最多可以发送5个脉冲。对于短突发内的脉冲数量大于或等于2的例子，这里不再一一列举。示例性的，短突发内的脉冲数量取值为1，则可以表示发送端使用非脉冲簇的感知模式。非脉冲簇的感知模式如可以包括采用高脉冲重复频率(pulse repetition frequency，PRF)的脉冲发射方式，该方式有较高的传输功率；或者，包括采用较低PRF的脉冲发射方式，该方式有较大的不模糊距离。示例性的，高PRF可以对应百兆赫兹(MHz)级别(如124.8MHz)，低PRF可以对应低于100MHz级别(如7.8MHz)。
短突发内的脉冲数量的取值等于序列的个数，这种方式，可以使得接收端能够有效获知循环移位参数中的循环移位位数的个数(即M的取值)，从而可以有效获知控制信息所在位置，避免将其他信息单元(informationelement，IE)中的信息误认为是该控制信息中的信息。
作为另一个示例，短突发内的脉冲数量可以表示采用非脉冲簇的感知模式，或者，采用脉冲簇的感知模式。示例性的，短突发内的脉冲数量取值为0，则表示采用非脉冲簇的感知模式；短突发内的脉冲数量 取值为1，则表示采用脉冲簇的感知模式。
短突发内相邻脉冲之间的间隔的单位可以为码片(chip)或纳秒(ns)。
相邻短突发之间的间隔的单位可以为纳秒(ns)或码片。
序列标识可以用于指示基准序列，该序列标识可以理解为序列的序号或序列的索引。序列长度可以用于指示基准序列的长度。该基准序列可以为序列集中的序列，该序列集可以存储于发送端和接收端；或者，该序列集可以由协议定义等，本申请实施例对此不作限定。通过序列标识或序列长度中的至少一项，通信双方可以有效获知基准序列。以上所示的基准序列是以使用周期零相关区的序列为例示出的，即该基准序列可以为具有完备的周期自相关特性的三元序列(如ipatov序列)或其循环移位构成的序列。当通信双方使用非周期零相关区的序列时，该序列标识可以用于指示用于确定感知信号的多个序列的集合标识。该情况下，控制信息可以不包括循环移位参数。
序列类型可以用于表示使用具有周期零相关区的序列，或者，使用不具有周期零相关区的序列。示例性的，序列类型包括第一序列类型，则控制信息包括循环移位参数，第一序列类型可以用于指示M个序列具有周期零相关区。示例性的，序列类型包括第二序列类型，则控制信息不包括循环移位参数，控制信息中包括的序列表示用于指示序列集合标识，该序列集合标识所对应的序列集合中包括多个序列，该多个序列均不具有周期零相关区。举例来说，序列类型取值为0时表示具有周期零相关区的序列集；序列类型取值为1时表示具有非周期零相关区的序列集。
循环移位类型用于表示相邻序列之间使用相同的相对循环移位位数，或者，表示相邻序列之间可以使用不同的相对循环移位位数。举例来说，循环移位类型取值为0时，表示相邻序列间使用相同的相对循环移位位数，循环移位位数可以由序列长度和序列个数(即短突发内的脉冲数量确定，如 循环移位类型取值为1时，表示相邻序列间使用不同的相对循环移位位数。
可选的，控制信息还可以包括循环前缀(cyclic prefix，CP)长度(CP length)、循环后缀(cyclic suffix，CS)长度(CS length)中的至少一项。可理解，循环前缀和循环后缀的长度可以相同，也可以不同。
可理解，上文关于相对循环移位位数、循环移位参数以及控制信息的说明下文同样适用。
图4是本申请实施例提供的一种基于感知的通信方法的流程示意图。关于发送端和接收端的说明可以参考上文。可理解，本申请实施例所示的发送端和接收端是相对于感知信号而言的，因此感知信号的发送端不一定是控制信息的发送端，对应的，感知信号的接收端不一定是控制信息的接收端。如图4所示，该方法包括：
401、发送端获取控制信息。
发送端获取控制信息可以包括：发送端确定控制信息(或称为发送端生成控制信息)；或者，发送端接收控制信息。可理解，发送端确定控制信息之后，可以发送该控制信息。
关于控制信息的说明可以参考上文，这里不再详述。
402、发送端基于控制信息发送感知信号，对应的，接收端接收该感知信号。
可理解，图4所示的感知信号仅为一种示例，如该感知信号可以统称为信号；又如该感知信号还可以称为UWB脉冲等。
示例性的，如在发送端向接收端发送控制信息的情况下，发送端可以先确定控制信息，然后基于该控制信息确定M个序列，发送感知信号。又如在发送端向接收端发送控制信息的情况下，该发送端可以先确定M个序列，然后基于该M个序列确定控制信息，发送感知信号。示例性的，在发送端接收控制信息的情况下，发送端可以基于该控制信息获取M个循环移位位数，然后基于M个循环移位位数和基准序列确定M个序列，发送感知信号。
本申请实施例所示的基于控制信息发送感知信号可以理解为：发送端基于序列类型以及循环移位的类型确定待发送的序列的类型。类似的，接收端基于序列类型以及循环移位位数的类型确定待接收的序列的类型。
如在序列类型包括第一序列类型，循环移位的类型包括使用不同的相对循环移位位数的情况下，确定M个序列(如M大于或等于2)。以及发送端可以基于该M个序列、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔，以及一个脉冲所对应的码片大小发送感知信号。类似的，接收端可以基于该M个序列、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔，以及一个脉冲所对应的码片大小接收感知信号。如M个序列可以用于确定短突发(或脉冲簇)内包括的正脉冲、负脉冲和无脉冲的位置，一个脉冲对应的码片大小可以用于确定一个脉冲的持续时间(无脉冲时仍会对应一个码片)，每个脉冲之间的间隔可以由短突发内相邻脉冲之间的间隔确定。在一个脉冲簇之后，基于相邻短突发之间的间隔确定下一个脉冲簇的 时间。在M＝1时，发送端可以基于其确定的一个序列，短突发内的脉冲数量(即为1)，相邻短突发之间的间隔发送感知信号，类似的，接收端可以基于其确定的一个序列，短突发内的脉冲数量(即为1)以及相邻短突发之间的间隔接收感知信号。
又如，在序列类型包括第一序列类型，循环移位的类型包括使用相同的相对循环移位位数的情况下，确定相对循环移位位数相同的序列集(如基于循环移位参数、序列标识和序列长度确定)。以及发送端可以基于相对循环移位位数相同的序列集、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔，以及一个脉冲所对应的码片大小发送感知信号。类似的，接收端可以基于该相对循环移位位数相同的序列集、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔，以及一个脉冲所对应的码片大小接收感知信号。
又如，在序列类型包括第二序列类型的情况下，发送端可以确定非周期ZCZ的序列集(如基于序列标识或序列长度中的至少一项确定)，然后基于该非周期ZCZ的序列集、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔，以及一个脉冲所对应的码片大小发送感知信号。类似的，接收端可以基于该非周期ZCZ的序列集、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔，以及一个脉冲所对应的码片大小接收感知信号。
403、接收端获取控制信息，基于控制信息进行处理。
接收端获取控制信息包括：接收端接收该控制信息；或者，接收端确定该控制信息。可理解，接收端确定控制信息之后，可以发送该控制信息。
作为一个示例，发送端可以发送该控制信息，对应的，接收端接收该控制信息。作为另一个示例，接收端可以发送控制信息，对应的，发送端接收该控制信息。
示例性的，接收端可以接收来自发送端的控制信息，获取M个循环移位位数和基准序列，并确定M个序列。示例性的，接收端可以向发送端发送控制信息，如先确定M个序列，然后基于M个序列确定控制信息；或者，可以先发送控制信息，然后基于控制信息确定M个序列。接收端确定M个序列之后，可以对该M个序列和接收到的信号进行相关，基于相关的结果确定目标的信息。示例性的，基于相关的结果确定目标的信息包括：基于相关的结果确定零相关区，基于零相关区确定目标的信息。该目标的信息可以包括如下至少一项：目标的速度、目标的角度、目标的距离、目标的衰减。
发送端在发送感知信号时，在一个短突发内可以发送M个脉冲(仅为示例，具体的脉冲数量基于序列的元素确定)，发送端可以发送多个短突发(如N+x个短突发)。这些脉冲有些可能通过直射径到达接收端，有些可能经过反射径到达接收端。
示例性的，接收端在接收到一个短突发内的脉冲之后，可以进行模拟数字转换采样，获得采样值，并基于门限值判断每个采样值为+1、-1、0中的一项。接收端在接收到N+x个短突发内的脉冲之后，或者，接收端在接收到M个序列对应的第一个短突发内的脉冲之后，可以进行相关，将最高峰确定为ZCZ的初始位置，以及基于相对循环移位位数中的最小循环移位位数和相邻短突发之间的间隔确定ZCZ的长度。然后基于ZCZ确定目标的相关信息。示例性的，目标的数量可以由ZCZ中的峰值数量确定。如图5a所示，ZCZ中的最高峰为ZCZ的初始位置，ZCZ中的其他三个峰值可以对应三个目标。
可选的，接收端在基于控制信息进行处理之后，还可以向发送端发送反馈信息，该反馈信息用于反馈目标的相关信息；或者，该反馈信息用于反馈接收端基于控制信息得到的感知测量结果。对于反馈信息的具体内容，本申请实施例不作列举。
本申请实施例中，M＝1或M＝2时，通信双方通过控制信息达到对循环移位位数的理解一致，从而有效避免了由于通信双方对循环移位位数的理解不一致导致的感知结果不准确的情况，提高了感知结果的准确性。
M大于2时，如果相邻序列的相对循环移位位数相同，则感知信号的接收端在执行相关操作时，旁瓣可能会出现重叠，从而导致旁瓣幅度较高，进而导致接收端无法有效确定出峰值位置(如最高峰)，无法有效确定出零相关区(zero correlation zone，ZCZ)，导致感知结果的准确性不高。然而，本申请实施例中，相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同，由此感知信号的接收端对感知信号进行处理，如执行相关操作时，有效削弱了旁瓣出现重叠的情况，从而降低了旁瓣幅度高的概率。有效降低了非零相关区的旁瓣幅度，保证感知信号的接收端能够有效确定出零相关区，有效提高了感知结果的准确性。
以下将介绍本申请实施例提供的通信装置。
本申请实施例根据上述方法实施例对通信装置进行功能模块的划分，例如，可以对应各个功能划分各 个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。下面将结合图6至图8详细描述本申请实施例的通信装置。
图6是本申请实施例提供的一种通信装置的结构示意图，如图6所示，该通信装置包括处理单元601和收发单元602。
在本申请的一些实施例中，该通信装置可以是上文示出的发送端或芯片，该芯片可以应用于发送端中等。即该通信装置可以用于执行上文方法实施例中由发送端执行的步骤或功能等。
处理单元601，用于获取控制信息，并基于控制信息发送感知信号。
示例性的，处理单元601，用于确定控制信息；或者，通过收发单元602输入该控制信息。
示例性的，处理单元601，具体用于基于M个循环移位位数和基准序列确定M个序列；基于M个序列发送所述感知信号。
可理解，本申请实施例示出的收发单元和处理单元的具体说明仅为示例，对于收发单元和处理单元的具体功能或执行的步骤等，可以参考上述方法实施例，这里不再详述。
复用图6，在本申请的另一些实施例中，该通信装置可以是上文示出的接收端或接收端中的芯片等。即该通信装置可以用于执行上文方法实施例中由接收端执行的步骤或功能等。
如处理单元601，用于获取控制信息，并基于控制信息进行处理。
示例性的，处理单元601，用于确定控制信息；通过收发单元602输入控制信息。
示例性的，处理单元601，具体用于基于M个循环移位位数和基准序列确定M个序列；基于M个序列对接收到的感知信号进行处理。
可理解，本申请实施例示出的收发单元和处理单元的具体说明仅为示例，对于收发单元和处理单元的具体功能或执行的步骤等，可以参考上述方法实施例，这里不再详述。
上个各个实施例中，关于控制信息、循环移位参数、M个循环移位位数、相对循环移位位数、M个序列等说明还可以参考上文方法实施例中的介绍，这里不再一一详述。
以上介绍了本申请实施例的发送端和接收端，以下介绍所述发送端和接收端可能的产品形态。应理解，但凡具备上述图6所述的发送端的功能的任何形态的产品，或者，但凡具备上述图6所述的接收端的功能的任何形态的产品，都落入本申请实施例的保护范围。还应理解，以下介绍仅为举例，不限制本申请实施例的发送端和接收端的产品形态仅限于此。
在一种可能的实现方式中，图6所示的通信装置中，处理单元601可以是一个或多个处理器，收发单元602可以是收发器，或者收发单元602还可以是发送单元和接收单元，发送单元可以是发送器，接收单元可以是接收器，该发送单元和接收单元集成于一个器件，例如收发器。本申请实施例中，处理器和收发器可以被耦合等，对于处理器和收发器的连接方式，本申请实施例不作限定。在执行上述方法的过程中，上述方法中有关发送信息的过程，可以理解为由处理器输出上述信息的过程。在输出上述信息时，处理器将该上述信息输出给收发器，以便由收发器进行发射。该上述信息在由处理器输出之后，还可能需要进行其他的处理，然后才到达收发器。类似的，上述方法中有关接收信息的过程，可以理解为处理器接收输入的上述信息的过程。处理器接收输入的信息时，收发器接收该上述信息，并将其输入处理器。更进一步的，在收发器收到该上述信息之后，该上述信息可能需要进行其他的处理，然后才输入处理器。
如图7所示，该通信装置70包括一个或多个处理器720和收发器710。
示例性的，当该通信装置用于执行上述发送端执行的步骤或方法或功能时，
处理器720，用于获取控制信息，并基于控制信息发送感知信号。
示例性的，处理器720，用于确定控制信息；或者，通过收发器710输入该控制信息。
示例性的，处理器720，具体用于基于M个循环移位位数和基准序列确定M个序列；基于M个序列发送所述感知信号。
示例性的，当该通信装置用于执行上述接收端执行的步骤或方法或功能时，
处理器720，用于获取控制信息，并基于控制信息进行处理。
示例性的，处理器720，用于确定控制信息；通过收发器710输入控制信息。
示例性的，处理器720，具体用于基于M个循环移位位数和基准序列确定M个序列；基于M个序列对接收到的感知信号进行处理。
上个各个实施例中，关于控制信息、循环移位参数、M个循环移位位数、相对循环移位位数、M个序列等说明还可以参考上文方法实施例中的介绍，这里不再一一详述。
在图7所示的通信装置的各个实现方式中，收发器可以包括接收机和发射机，该接收机用于执行接收的功能(或操作)，该发射机用于执行发射的功能(或操作)。以及收发器用于通过传输介质和其他设备/装置进行通信。
可选的，通信装置70还可以包括一个或多个存储器730，用于存储程序指令和/或数据等。存储器730和处理器720耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。处理器720可能和存储器730协同操作。处理器720可可以执行存储器730中存储的程序指令。可选的，上述一个或多个存储器中的至少一个可以包括于处理器中。示例性的，存储器可以用于存储控制信息。示例性的，存储器可以用于存储M个序列，或者非周期ZCZ序列集等。
本申请实施例中不限定上述收发器710、处理器720以及存储器730之间的具体连接介质。本申请实施例在图7中以存储器730、处理器720以及收发器710之间通过总线740连接，总线在图7中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图7中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成等。
本申请实施例中，存储器可包括但不限于硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等非易失性存储器，随机存储记忆体(Random Access Memory，RAM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、只读存储器(Read-Only Memory，ROM)或便携式只读存储器(Compact Disc Read-Only Memory，CD-ROM)等等。存储器是能够用于携带或存储具有指令或数据结构形式的程序代码，并能够由计算机(如本申请示出的通信装置等)读和/或写的任何存储介质，但不限于此。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。示例性的，对于接收端来说，存储器中可以存储参考信息，即采样单元内的感知测量结果。可选的，对于发送端来说，由于其需要根据参考信息解析CIR参数信息，因此其存储器中也可以存储参考信息。
示例性的，处理器720主要用于对通信协议以及通信数据进行处理，以及对整个通信装置进行控制，执行软件程序，处理软件程序的数据。存储器730主要用于存储软件程序和数据。收发器710可以包括控制电路和天线，控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当通信装置开机后，处理器720可以读取存储器730中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器720对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到通信装置时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器720，处理器720将基带信号转换为数据并对该数据进行处理。
在另一种实现中，所述的射频电路和天线可以独立于进行基带处理的处理器而设置，例如在分布式场景中，射频电路和天线可以与独立于通信装置，呈拉远式的布置。
可理解，本申请实施例示出的通信装置还可以具有比图7更多的元器件等，本申请实施例对此不作限定。以上所示的处理器和收发器所执行的方法仅为示例，对于该处理器和收发器具体所执行的步骤可参照上文介绍的方法。
在另一种可能的实现方式中，图6所示的通信装置中，处理单元601可以是一个或多个逻辑电路，收发单元602可以是输入输出接口，又或者称为通信接口，或者接口电路，或接口等等。或者收发单元602还可以是发送单元和接收单元，发送单元可以是输出接口，接收单元可以是输入接口，该发送单元和接收单元集成于一个单元，例如输入输出接口。如图8所示，图8所示的通信装置包括逻辑电路801和接口802。即上述处理单元601可以用逻辑电路801实现，收发单元602可以用接口802实现。其中，该逻辑电路801可以为 芯片、处理电路、集成电路或片上系统(system on chip，SoC)芯片等，接口802可以为通信接口、输入输出接口、管脚等。示例性的，图8是以上述通信装置为芯片为例出的，该芯片包括逻辑电路801和接口802。
可理解，本申请实施例所示的芯片可以包括窄带芯片或超带宽芯片等，本申请实施例不作限定。如上文所示的发送感知信号的步骤或接收感知信号的步骤可以由超带宽芯片执行，其余步骤是否由超带宽芯片执行，本申请实施例不作限定。可理解，窄带芯片和超带宽芯片可以包含于同一个通信装置中，或者，设置于不同的通信装置中。由此，上文所示的发送端的步骤可以由包括窄带芯片和超带宽芯片的一个通信装置实现，或者，由包括窄带芯片的装置和包括超带宽芯片的装置分别实现。
本申请实施例中，逻辑电路和接口还可以相互耦合。对于逻辑电路和接口的具体连接方式，本申请实施例不作限定。为便于描述，下文以窄带芯片为例进行说明。但是，不应将其理解为对本申请实施例的限定。示例性的，窄带芯片输出感知信号之后，可以由超带宽芯片发送该感知信号。示例性的，超带宽芯片接收到感知信号之后，可以将该感知信号发送给窄带芯片。
示例性的，当通信装置用于执行上述发送端执行的方法或功能或步骤时，逻辑电路801，用于获取控制信息，以及基于该控制信息输出感知信号。
示例性的，逻辑电路801，用于通过接口802输入控制信息。示例性的，逻辑电路801，用于通过接口802输出感知信号。
示例性的，当通信装置用于执行上述接收端执行的方法或功能或步骤时，逻辑电路801，用于获取控制信息，以及基于该控制信息对感知信号进行处理。
示例性的，逻辑电路801，用于通过接口802输入控制信息。
可选的，图8所示的芯片还可以包括存储器，该存储器可以用于存储控制信息；或者，该存储器用于存储M个序列；或者，该存储器用于存储非周期ZCZ序列集等。
可理解，本申请实施例示出的通信装置可以采用硬件的形式实现本申请实施例提供的方法，也可以采用软件的形式实现本申请实施例提供的方法等，本申请实施例对此不作限定。
上个各个实施例中，关于控制信息、循环移位参数、M个循环移位位数、相对循环移位位数、M个序列等说明还可以参考上文方法实施例中的介绍，这里不再一一详述。
对于图8所示的各个实施例的具体实现方式，还可以参考上述各个实施例，这里不再详述。
本申请实施例还提供了一种无线通信系统，该无线通信系统包括发送端和接收端，该发送端和该接收端可以用于执行前述任一实施例(如图4)中的方法。
此外，本申请还提供一种计算机程序，该计算机程序用于实现本申请提供的方法中由发送端执行的操作和/或处理。
本申请还提供一种计算机程序，该计算机程序用于实现本申请提供的方法中由接收端执行的操作和/或处理。
本申请还提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机代码，当计算机代码在计算机上运行时，使得计算机执行本申请提供的方法中由发送端执行的操作和/或处理。
本申请还提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机代码，当计算机代码在计算机上运行时，使得计算机执行本申请提供的方法中由接收端执行的操作和/或处理。
本申请还提供一种计算机程序产品，该计算机程序产品包括计算机代码或计算机程序，当该计算机代码或计算机程序在计算机上运行时，使得本申请提供的方法中由发送端执行的操作和/或处理被执行。
本申请还提供一种计算机程序产品，该计算机程序产品包括计算机代码或计算机程序，当该计算机代码或计算机程序在计算机上运行时，使得本申请提供的方法中由接收端执行的操作和/或处理被执行。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例提供的方案的技术效果。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也 可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个可读存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的可读存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (21)

  1. 一种基于感知的通信方法，其特征在于，所述方法包括：
    获取控制信息，所述控制信息包括循环移位参数，所述循环移位参数用于指示M个循环移位位数，所述M个循环移位位数对应M个序列；其中，M＝1时，所述M个循环移位位数为序列相对于基准序列的循环移位位数；或者，M大于2时，所述M个循环移位位数对应的所述M个序列中相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同；
    基于所述控制信息处理信号。
  2. 根据权利要求1所述的方法，其特征在于，所述基于所述控制信息处理信号包括：
    基于所述M个循环移位位数和所述基准序列确定所述M个序列；
    基于所述M个序列处理所述信号。
  3. 根据权利要求2所述的方法，其特征在于，所述基于所述M个序列处理所述信号包括：
    对所述M个序列和接收到的所述信号进行相关；
    基于相关的结果确定目标的信息。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述获取控制信息包括：
    确定所述控制信息；或者，
    接收所述控制信息。
  5. 一种基于感知的通信方法，其特征在于，所述方法包括：
    获取控制信息，所述控制信息包括循环移位参数，所述循环移位参数用于指示M个循环移位位数，所述M个循环移位位数对应M个序列；其中，M＝1时，所述M个循环移位位数为序列相对于基准序列的循环移位位数；或者，M大于2时，所述M个循环移位位数对应的所述M个序列中相邻序列的相对循环移位位数中至少有两个相对循环移位位数不同；
    基于所述控制信息发送信号。
  6. 根据权利要求5所述的方法，其特征在于，所述基于所述控制信息发送信号包括：
    基于所述M个循环移位位数和所述基准序列确定所述M个序列；
    基于所述M个序列发送所述信号。
  7. 根据权利要求5或6所述的方法，其特征在于，所述获取控制信息包括：
    接收所述控制信息；或者，
    确定所述控制信息。
  8. 根据权利要求1-7任一项所述的方法，其特征在于，M＝2时，所述2个循环移位位数包括所述2个序列中的一个序列相对于基准序列的循环移位位数和所述2个序列的相对循环移位位数，或者，所述2个循环移位位数包括所述2个序列中的序列相对于基准序列的循环移位位数。
  9. 根据权利要求1-8任一项所述的方法，其特征在于，所述相对循环移位位数大于或等于循环移位位数阈值，所述循环移位位数阈值基于相邻短突发之间的间隔确定。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述控制信息还包括如下至少一项：
    短突发内的脉冲数量、短突发内相邻脉冲之间的间隔、相邻短突发之间的间隔。
  11. 根据权利要求1-10任一项所述的方法，其特征在于，第i个短突发内的脉冲由所述M个序列中每个序列的第i个元素确定，所述i为大于或等于1且小于或等于N的整数，所述N等于所述序列的元素个数，所述序列中的元素包括-1、0和+1，-1表示负脉冲，+1表示正脉冲，或者，-1表示正脉冲，+1表示负脉冲。
  12. 根据权利要求1-11任一项所述的方法，其特征在于，所述控制信息还包括序列标识、序列长度中的至少一项，所述序列标识、所述序列长度中的至少一项用于指示所述基准序列。
  13. 根据权利要求1-12任一项所述的方法，其特征在于，所述控制信息还包括如下至少一项：
    序列类型，所述序列类型包括第一序列类型，所述第一序列类型用于指示所述M个序列具有周期零相关区；
    循环移位的类型，所述循环移位的类型包括使用不同的相对循环移位位数。
  14. 根据权利要求1-13任一项所述的方法，其特征在于，所述循环移位参数用于指示M个循环移位位数包括：
    所述循环移位参数包括随机数生成算法的信息、随机数的比特数，所述随机数生成算法和所述随机数 的比特数用于确定所述M个循环移位位数。
  15. 根据权利要求1-14任一项所述的方法，其特征在于，所述循环移位参数用于指示M个循环移位位数包括：
    所述循环移位参数包括所述M个序列中相邻序列的相对循环移位位数与循环移位位数阈值的偏移量。
  16. 一种通信装置，其特征在于，包括用于执行如权利要求1-15任一项所述方法的单元。
  17. 一种通信装置，其特征在于，包括处理器和存储器；
    所述存储器用于存储指令；
    所述处理器用于执行所述指令，以使权利要求1-15任一项所述的方法被执行。
  18. 一种通信装置，其特征在于，包括逻辑电路和接口，所述逻辑电路和接口耦合；
    所述接口用于输入和/或输出代码指令，所述逻辑电路用于执行所述代码指令，以使权利要求1-15任一项所述的方法被执行。
  19. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储计算机程序，所述计算机程序被执行时，如权利要求1-15任一项所述的方法被执行。
  20. 一种计算机程序，其特征在于，所述计算机程序被执行时，如权利要求1-15任一项所述的方法被执行。
  21. 一种通信系统，其特征在于，所述通信系统包括发送端和接收端，所述发送端用于执行如权利要求5-12任一项所述的方法，所述接收端用于执行如权利要求1、2、3、4、8-12任一项所述的方法。
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CN111629394A (zh) * 2019-02-27 2020-09-04 华为技术有限公司 随机接入方法和装置
CN111629445A (zh) * 2019-02-27 2020-09-04 华为技术有限公司 随机接入方法和装置
US20210314886A1 (en) * 2018-11-02 2021-10-07 Lg Electronics Inc. Method for transmitting and receiving signals in wireless communication system, and device supporting same
WO2022082792A1 (zh) * 2020-10-23 2022-04-28 华为技术有限公司 一种信号发送、信号检测方法及装置

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US20210314886A1 (en) * 2018-11-02 2021-10-07 Lg Electronics Inc. Method for transmitting and receiving signals in wireless communication system, and device supporting same
CN111629394A (zh) * 2019-02-27 2020-09-04 华为技术有限公司 随机接入方法和装置
CN111629445A (zh) * 2019-02-27 2020-09-04 华为技术有限公司 随机接入方法和装置
WO2022082792A1 (zh) * 2020-10-23 2022-04-28 华为技术有限公司 一种信号发送、信号检测方法及装置

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