Sensing method and apparatus

Abstract

The present application provides a sensing method and apparatus. The method is applied to sensing scenarios. The method comprises: defining radio frequency metrics for frequency domain spectral shaping of a sensing service, and / or a network device indicating to a terminal device a value of an element corresponding to the frequency domain spectral shaping of the sensing service. In this way, compared with directly using radio frequency metrics for frequency domain spectral shaping of a communication service, signal processing can be carried out for frequency domain spectral shaping of the sensing service, thereby improving sensing performance.

Description

Perception method and apparatus

[0001] The present application claims priority to the Chinese patent application No. 202411091053.9, filed on August 8, 2024, and entitled "Perception method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and more particularly, to a perception method and apparatus. BACKGROUND

[0003] With the continuous development of communication technology and wireless sensing technology, the integration of communication technology and wireless sensing technology, i.e., integrated sensing and communication (ISAC), has become a popular research direction. In a wireless sensing system, the wireless signal transmitted by a communication device has both sensing and communication capabilities. For example, the transmitting end can transmit a sensing signal for sensing measurement to the receiving end to achieve sensing of a sensing target, such as sensing the surrounding environment, the moving speed of an object, the distance, etc.

[0004] Currently, the radio frequency standard for frequency-domain spectral shaping (FDSS) of communication services, if directly applied to sensing services, can cause the main lobe of the autoambiguity function corresponding to the signal for sensing services to be widened, reducing the range resolution and thus affecting the sensing performance.

[0005] Therefore, how to design the frequency-domain spectral shaping for sensing services is a problem to be solved. SUMMARY

[0006] The present application provides a perception method and apparatus with frequency-domain spectral shaping for sensing services, which can improve the sensing performance.

[0007] In a first aspect, a perception method is provided, which can be executed by a transmitting end. In the absence of special description, the "transmitting end" in the present application can refer to the transmitting end itself, a component (such as a communication module, a processor, a circuit, a chip (such as a modem chip, also known as a baseband chip, or a SoC chip or SIP chip containing a modem core), or a chip system, etc.) in the transmitting end, or a logic module or software capable of realizing all or part of the functions of the transmitting end.

[0008] The method comprises: determining a first signal, the first signal being determined according to the second signal and a first shaping filter, and an absolute value of a difference between a power of a first spectrum at a first center frequency and a power of the first spectrum at a first frequency being less than or equal to a first value. The first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of a first frequency domain resource, the first frequency domain resource comprises M first frequency domain units, the first frequency is a frequency corresponding to an i th first frequency domain unit in the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i<M, i is an integer. The first signal is transmitted on the first frequency domain resource, and the first signal is used for a sensing service.

[0009] In the technical solution, the radio frequency index of the first shaping filter associated with the sensing service is predefined by a protocol, or the radio frequency index of the first shaping filter associated with the sensing service is predefined in the sending end. Compared with directly using the radio frequency index of the shaping filter for the communication service, using the shaping filter for the sensing service can improve the sensing performance (for example, improve the distance resolution). Compared with not using the shaping filter, using the first shaping filter associated with the sensing service can reduce the PAPR, thereby improving the coverage performance. Therefore, using the first shaping filter for the sensing service proposed in the present application can improve the overall sensing performance. In addition, by predefining the radio frequency index of the first shaping filter associated with the sensing service by the protocol, the signaling overhead of the sending end can be saved.

[0010] In combination with the first aspect, in some implementations of the first aspect, the method further comprises: determining a third signal, the third signal being determined according to the second signal and a second shaping filter, and an absolute value of a difference between a power of a second spectrum at a second center frequency and a power of the second spectrum at a second frequency being less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of a second frequency domain resource, the second frequency domain resource comprises N second frequency domain units, the second frequency is a frequency corresponding to a j th second frequency domain unit in the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j<N, j is an integer. The third signal is transmitted on the second frequency domain resource, and the third signal is used for a communication service.

[0011] In the technical solution, the radio frequency index of the first shaping filter associated with the sensing service is predefined by a protocol, or the radio frequency index of the first shaping filter associated with the sensing service is predefined in the sending end. Compared with directly using the radio frequency index of the shaping filter for the communication service, using the shaping filter for the sensing service can improve the sensing performance (for example, improve the distance resolution). Compared with not using the shaping filter, using the first shaping filter associated with the sensing service can reduce the PAPR, thereby improving the coverage performance. Therefore, using the first shaping filter for the sensing service proposed in the present application can improve the overall sensing performance. In addition, by predefining the radio frequency index of the first shaping filter associated with the sensing service by the protocol, the signaling overhead of the sending end can be saved.

[0012] In combination with the first aspect, in some implementations of the first aspect, the first value is less than the second value.

[0013] In the technical solution, when the first value is less than the second value, the first spectrum corresponds to a smaller power fluctuation or power attenuation for the perception service, which can reduce the main lobe broadening of the self-blurring function, thereby ensuring a better distance resolution and improving the perception performance.

[0014] With reference to the first aspect, in some implementations of the first aspect, the first value is less than or equal to 3 dB.

[0015] With reference to the first aspect, in some implementations of the first aspect, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold value, an absolute value of a difference between a power corresponding to the first center frequency of the first spectrum and a power corresponding to the first frequency of the first spectrum is less than or equal to a third value. The first threshold value is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0016] In the technical solution, for the first frequency with an absolute value of a difference between the first frequency and the first center frequency less than or equal to the first threshold value, a more stringent power attenuation constraint can be performed. In this way, the more the frequency intervals are divided, the more accurate or stringent the constraint on the first signal or the first shaping filter can be described according to specific requirements, so that the first signal or the first shaping filter under the constraint can better meet the expected performance.

[0017] In some implementations, the method includes receiving or sending first information, the first information being used to indicate values of M elements corresponding to the first shaping filter, M being a positive integer. The method includes sending a first signal on the first frequency domain resource, the first signal being obtained according to the second signal and the values of the M elements corresponding to the first shaping filter, the first signal being used for the perception service.

[0018] In the technical solution, the signaling indication makes the receiving end and the sending end both clear the first shaping filter used for the perception service, and the receiving end can also know the specific form of the first shaping filter used by the sending end, so that signal-to-noise ratio (SNR) loss can be avoided.

[0019] In some implementations, the first information includes a first parameter, the first parameter being used to determine the values of the M elements corresponding to the first shaping filter.

[0020] In the technical solution, the first parameter used to determine the values of the M elements corresponding to the first shaping filter is exchanged through signaling interaction, and the receiving end or the sending end determines the first shaping filter by itself through the first parameter, so that signaling overhead can be reduced.

[0021] In some implementations, the first parameter includes the values ​​of the Q elements corresponding to the third shaping filter, and the M elements corresponding to the first shaping filter are determined based on the Q elements corresponding to the third shaping filter, where Q is a positive integer.

[0022] In the above technical solution, by configuring the values ​​of the Q elements corresponding to the third shaping filter once, the transmitting end can determine the first shaping filter that matches the specific situation of the frequency domain resources, which can reduce signaling overhead.

[0023] In some implementations, the first parameter includes at least one of the following: filter type, time-domain pulse width corresponding to the filter, and time-domain pulse truncation parameter corresponding to the filter.

[0024] In some implementations, the first information includes the values ​​of the M elements corresponding to the first shaping filter.

[0025] In the above technical solution, by configuring a first shaping filter that matches the first frequency domain resources, the transmitting end or receiving end can obtain the values ​​of the M elements corresponding to the first shaping filter in the simplest way, thereby reducing the processing complexity.

[0026] In some implementations, the method further includes: receiving or sending second information. The second information includes first indication information, which indicates a waveform or set of waveforms, and a first shaping filter is associated with the waveform or set of waveforms. And / or, the second information includes second indication information, which indicates a sequence or set of sequences, and a first shaping filter is associated with the sequence or set of sequences. And / or, the second information includes third indication information, which indicates that the first shaping filter is used for sensing services.

[0027] In the above technical solution, the first shaping filter can be associated with one or more factors such as waveform, waveform set, sequence, sequence set or service type, which helps the transmitter to use a more suitable first shaping filter, thereby better meeting performance requirements.

[0028] In some implementations, the method further includes: sending or receiving third information, the third information being used to determine the values ​​of the M elements corresponding to the first shaping filter; or, the third information being used to determine a first parameter, the first parameter being used to determine the values ​​of the M elements corresponding to the first shaping filter. The third information includes at least one of the following: minimum range resolution, minimum interference suppression capability, or the expected peak-to-average power ratio (PAPR) corresponding to the first signal.

[0029] In the technical solution, the network device determines the values of the M elements of the first shaping filter by obtaining the minimum distance resolution, the minimum interference suppression capability, or the auxiliary factors such as the expected peak-to-average power ratio (PAPR) corresponding to the first signal, so that the shaping filter can meet the performance requirements.

[0030] In some implementations, the method further includes receiving or sending fourth information, where the fourth information is used to indicate the first frequency domain resource.

[0031] In a second aspect, a sensing method is provided. The method can be performed by a receiving end. Unless otherwise specified, the "receiving end" in the present application can refer to the receiving end itself, a component (for example, a communication module, a processor, a circuit, a chip (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core), or a chip system) in the receiving end, or a logic module or software that can realize all or part of the functions of the receiving end.

[0032] The method includes: receiving a first signal on a first frequency domain resource, where the first signal is used for a sensing service, the first signal is obtained according to a second signal and a first shaping filter, and an absolute value of a difference between a power of a first spectrum at a first center frequency and a power of the first spectrum at a first frequency is less than or equal to a first value. The first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of the first frequency domain resource, the first frequency domain resource includes M first frequency domain units, the first frequency corresponds to a frequency of an i-th first frequency domain unit in the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i<M, and i is an integer. According to the first signal, a sensing parameter is obtained.

[0033] In the technical solution, the radio frequency indicators of the first shaping filter associated with the sensing service are pre-defined by a protocol, or in other words, the radio frequency indicators of the first shaping filter associated with the sensing service are pre-defined in the receiving end. Compared with directly using the radio frequency indicators of the shaping filter for the communication service, using the shaping filter for the sensing service can improve the sensing performance (for example, improve the distance resolution). Compared with not using the shaping filter, using the first shaping filter associated with the sensing service can reduce the PAPR, thereby improving the coverage performance. Therefore, using the first shaping filter for the sensing service proposed in the present application can improve the overall sensing performance. In addition, by pre-defining the radio frequency indicators of the first shaping filter associated with the sensing service by the protocol, the signaling overhead of the receiving end can be saved.

[0034] With reference to the second aspect, in some implementations of the second aspect, the method further includes: receiving a third signal on the second frequency domain resource, the third signal being for the communication service, the third signal being obtained according to the second signal and a second shaping filter, an absolute value of a difference between a power of a second spectrum at a second center frequency and a power of the second spectrum at a second frequency being less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is a frequency corresponding to a jth second frequency domain unit of the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j

[0035] With reference to the second aspect, in some implementations of the second aspect, the first value is less than the second value.

[0036] With reference to the second aspect, in some implementations of the second aspect, the first value is less than or equal to 3dB.

[0037] With reference to the second aspect, in some implementations of the second aspect, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold, an absolute value of a difference between a power of the first spectrum at the first center frequency and a power of the first spectrum at the first frequency is less than or equal to a third value. The first threshold is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0038] In some implementations, the method further includes: sending or receiving first information, the first information being used to indicate values of M elements corresponding to the first shaping filter, M being a positive integer. The first signal is received on the first frequency domain resource, the first signal being obtained according to the second signal and the values of the M elements corresponding to the first shaping filter, the first signal being for the perception service.

[0039] In some implementations, the first information includes a first parameter, the first parameter being used to determine the values of the M elements corresponding to the first shaping filter.

[0040] In some implementations, the first parameter includes values of Q elements corresponding to a third shaping filter, the M elements corresponding to the first shaping filter being determined based on the Q elements corresponding to the third shaping filter, Q being a positive integer.

[0041] In some implementations, the first parameter includes at least one of the following: a filter type, a time domain pulse width corresponding to the filter, and a time domain pulse truncation parameter corresponding to the filter.

[0042] In some implementations, the first information includes the values of the M elements corresponding to the first shaping filter.

[0043] In some embodiments, the method further includes: sending or receiving second information. The second information includes first indication information, the first indication information being used to indicate a waveform or a set of waveforms, the first shaping filter being associated with the waveform or the set of waveforms. The second information includes second indication information, the second indication information being used to indicate a sequence or a set of sequences, the first shaping filter being associated with the sequence or the set of sequences. The second information includes third indication information, the third indication information being used to indicate that the first shaping filter is used for a perception service.

[0044] In some embodiments, the method further includes: receiving or sending third information, the third information being used to determine values of M elements corresponding to the first shaping filter, or the third information being used to determine a first parameter, the first parameter being used to determine values of M elements corresponding to the first shaping filter. The third information includes at least one of the following: a minimum distance resolution, a minimum interference suppression capability, or an expected peak-to-average power ratio (PAPR) of the first signal.

[0045] In some embodiments, the method further includes: sending or receiving fourth information, the fourth information being used to indicate the first frequency domain resource.

[0046] It should be understood that the beneficial effects of the second aspect described above can refer to the first aspect described above and any possible implementation manner thereof, and will not be described here.

[0047] In a third aspect, a perception method is provided, which can be performed by a sending end. In the absence of special description, the "sending end" in the present application can refer to the sending end itself, a component (for example, a communication module, a processor, a circuit, a chip (such as a modem chip, also known as a baseband chip, or a SoC chip or a SIP chip containing a modem core), or a chip system) in the sending end, or a logic module or software capable of realizing all or part of the functions of the sending end.

[0048] The method includes: receiving or sending first information, the first information being used to indicate values of M elements corresponding to a first shaping filter, M being a positive integer. A first signal is sent on a first frequency domain resource, the first signal being obtained according to a second signal and the values of the M elements corresponding to the first shaping filter, the first signal being used for a perception service, and M representing a number of first frequency domain units included in the first frequency domain resource.

[0049] In the technical solution, the first shaping filter for the sensing service is indicated by signaling, so that the receiving end and the sending end are both clear about the first shaping filter for the sensing service. Compared with directly using the shaping filter for the communication service, using the shaping filter for the sensing service can improve the sensing performance (e.g., improve the range resolution). In addition, the receiving end can also know the specific form of the first shaping filter used by the sending end, and process the received signal based on the first shaping filter, so that the signal-to-noise ratio (SNR) loss can be avoided. Compared with not using the shaping filter, using the first shaping filter associated with the sensing service can reduce the PAPR, thereby improving the coverage performance. Therefore, using the first shaping filter for the sensing service proposed in the application can improve the overall sensing performance. In addition, the first shaping filter can be dynamically indicated by the signaling indication, which provides flexibility.

[0050] With reference to the third aspect, in some implementations of the third aspect, the first information includes a first parameter, and the first parameter is used to determine values of M elements corresponding to the first shaping filter.

[0051] In the technical solution, the first parameter used to determine the values of the M elements corresponding to the first shaping filter is configured through signaling interaction, and the receiving end or the sending end determines the first shaping filter by using the first parameter, so that the signaling overhead can be reduced.

[0052] With reference to the third aspect, in some implementations of the third aspect, the first parameter includes values of Q elements corresponding to a third shaping filter, the M elements corresponding to the first shaping filter are determined based on the Q elements corresponding to the third shaping filter, and Q is a positive integer.

[0053] In the technical solution, the values of the Q elements corresponding to the third shaping filter are configured at one time, so that the sending end can determine the first shaping filter that matches the specific situation of the frequency domain resource, and the signaling overhead can be reduced.

[0054] With reference to the third aspect, in some implementations of the third aspect, the first parameter includes at least one of the following: a filter type, a time domain pulse width corresponding to the filter, and a time domain pulse truncation parameter corresponding to the filter.

[0055] With reference to the third aspect, in some implementations of the third aspect, the first information includes values of M elements corresponding to the first shaping filter.

[0056] In the technical solution, the first shaping filter that matches the first frequency domain resource is configured, and the sending end or the receiving end obtains the values of the M elements corresponding to the first shaping filter in the simplest way, so that the processing complexity is reduced.

[0057] In some implementations of the third aspect, the method further includes receiving or sending second information. The second information includes first indication information indicating a waveform or a set of waveforms associated with the first shaping filter. The second information includes second indication information indicating a sequence or a set of sequences associated with the first shaping filter. The second information includes third indication information indicating that the first shaping filter is used for a sensing service.

[0058] In the above technical solution, the first shaping filter is associated with one or more of the waveform, the set of waveforms, the sequence, the set of sequences, or the service type, which helps the sending end to use a more suitable first shaping filter, thereby better meeting the performance requirements.

[0059] In some implementations of the third aspect, the method further includes sending or receiving third information used to determine the values of the M elements corresponding to the first shaping filter, or the first parameter used to determine the values of the M elements corresponding to the first shaping filter. The third information includes at least one of the minimum distance resolution, the minimum interference suppression capability, or the expected peak-to-average power ratio (PAPR) of the first signal.

[0060] In the above technical solution, the network device determines the values of the M elements corresponding to the first shaping filter by obtaining auxiliary factors such as the minimum distance resolution, the minimum interference suppression capability, or the expected peak-to-average power ratio (PAPR) of the first signal, which makes the shaping filter more in line with the performance requirements.

[0061] In some implementations of the third aspect, the method further includes receiving or sending fourth information indicating the first frequency domain resource.

[0062] In some implementations, the absolute value of the difference between the power of the first spectrum at the first center frequency and the power of the first spectrum at the first frequency is less than or equal to a first value. The first spectrum is the spectrum of the first shaping filter or the spectrum of the first signal, the first center frequency is the center frequency of the first frequency domain resource, the first frequency domain resource includes M first frequency domain units, the first frequency is the frequency corresponding to the i-th first frequency domain unit in the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i<M, and i is an integer.

[0063] In the above technical solution, the first shaping filter indicated by the first information is constrained according to the radio frequency indicators of the sensing service, so that the values of the M elements included in the indicated first shaping filter are more in line with the sensing performance requirements.

[0064] In some implementations, a third signal is determined, the third signal being determined according to the second signal and a second shaping filter, an absolute value of a difference between a power of the second spectrum at a second center frequency and a power of the second spectrum at a second frequency being less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of a second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is a frequency corresponding to a jth second frequency domain unit of the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j

[0065] In the above technical solution, more targeted RF indicators of shaping filters are used for sensing services and communication services, thereby improving overall sensing and communication performance.

[0066] In some implementations, the first value is less than the second value.

[0067] In the above technical solution, in the case where the first value is less than the second value, the power fluctuation or power attenuation of the first spectrum corresponding to the sensing service is smaller, which can reduce the main lobe broadening of the self-blurring function, thereby ensuring better range resolution and improving sensing performance.

[0068] In some implementations, the first value is less than or equal to 3dB.

[0069] In some implementations, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold, an absolute value of a difference between a power of the first spectrum at the first center frequency and a power of the first spectrum at the first frequency is less than or equal to a third value. The first threshold is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0070] In the above technical solution, for the first frequency corresponding to the absolute value of the difference between the first center frequency and the first frequency being less than or equal to the first threshold, more strict power attenuation constraints can be performed. In this way, the more the frequency intervals are divided, the more accurate or more strict the constraints on the first signal or the first shaping filter can be described according to specific requirements, so that the first signal or the first shaping filter under the constraints can better meet the expected performance.

[0071] In a fourth aspect, a sensing method is provided. The method can be performed by a receiving end. Unless specifically stated, the "receiving end" in the present application can refer to the receiving end itself, a component (e.g., a communication module, a processor, a circuit, a chip (e.g., a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core), or a chip system) in the receiving end, or a logic module or software capable of realizing all or part of the functions of the receiving end.

[0072] The method includes: sending or receiving first information, the first information being used to indicate values of M elements corresponding to a first shaping filter, M being a positive integer. Receiving a first signal on a first frequency domain resource, the first signal being obtained according to a second signal and the values of the M elements corresponding to the first shaping filter, the first signal being used for a sensing service, and M representing a number of first frequency domain units included in the first frequency domain resource.

[0073] In combination with the fourth aspect, in some implementations of the fourth aspect, the first information includes a first parameter, and the first parameter is used to determine the values of the M elements corresponding to the first shaping filter.

[0074] In combination with the fourth aspect, in some implementations of the fourth aspect, the first parameter includes values of Q elements corresponding to a third shaping filter, and the M elements corresponding to the first shaping filter are determined based on the Q elements corresponding to the third shaping filter, Q being a positive integer.

[0075] In combination with the fourth aspect, in some implementations of the fourth aspect, the first parameter includes at least one of the following: a filter type, a time domain pulse width corresponding to the filter, and a time domain pulse truncation parameter corresponding to the filter.

[0076] In combination with the fourth aspect, in some implementations of the fourth aspect, the first information includes the values of the M elements corresponding to the first shaping filter.

[0077] In combination with the fourth aspect, in some implementations of the fourth aspect, the method further includes: sending or receiving second information. The second information includes first indication information, the first indication information being used to indicate a waveform or a set of waveforms, and the first shaping filter being associated with the waveform or the set of waveforms. The second information includes second indication information, the second indication information being used to indicate a sequence or a set of sequences, and the first shaping filter being associated with the sequence or the set of sequences. The second information includes third indication information, the third indication information being used to indicate that the first shaping filter is used for the sensing service.

[0078] In some implementations of the fourth aspect, in combination with the fourth aspect, the method further includes receiving or transmitting third information, the third information being used to determine values of the M elements corresponding to the first shaping filter, or the third information being used to determine the first parameter, the first parameter being used to determine values of the M elements corresponding to the first shaping filter. The third information includes at least one of the following: a minimum distance resolution, a minimum interference suppression capability, or an expected peak-to-average power ratio (PAPR) of the first signal.

[0079] In some implementations of the fourth aspect, in combination with the fourth aspect, the method further includes transmitting or receiving fourth information, the fourth information being used to indicate the first frequency domain resource.

[0080] In some implementations, an absolute value of a difference between a power of the first spectrum at a first center frequency and a power of the first spectrum at a first frequency is less than or equal to a first value. The first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of the first frequency domain resource, the first frequency domain resource includes M first frequency domain units, the first frequency is a frequency corresponding to an i-th first frequency domain unit of the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i

[0081] In the above technical solution, the first shaping filter indicated by the first information is constrained according to the radio frequency index of the sensing service, so that the values of the M elements included in the indicated first shaping filter are more in line with the sensing performance requirements.

[0082] In some implementations, a third signal is transmitted on the second frequency domain resource, the third signal being used for a communication service. The third signal is determined according to the second signal and a second shaping filter, and an absolute value of a difference between a power of the second spectrum at a second center frequency and a power of the second spectrum at a second frequency is less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is a frequency corresponding to a j-th second frequency domain unit of the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j

[0083] In some implementations, the first value is less than the second value.

[0084] In some implementations, the first value is less than or equal to 3 dB.

[0085] In some implementations, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold, an absolute value of a difference between the power of the first spectrum at the first center frequency and the power of the first spectrum at the first frequency is less than or equal to a third value. The first threshold is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0086] It should be understood that the beneficial effects of the fourth aspect described above can refer to the third aspect described above and any possible implementation thereof, which will not be repeated here.

[0087] In a fifth aspect, a perception apparatus is provided, which has the function of implementing the first aspect described above. For example, the perception apparatus includes a module or unit or means corresponding to the operations of the first aspect described above, which can be implemented by software, or by hardware, or by a combination of software and hardware.

[0088] For example, the perception apparatus can be a sending end, or a module or unit (such as a chip, or a chip system, or a circuit) corresponding to the method or operation or step or action described above, or an apparatus that can be matched with the sending end.

[0089] In one possible implementation, the perception apparatus includes a transceiver (or a communication module) and a processing unit.

[0090] For example, the processing unit is configured to determine a first signal, the first signal being determined according to a second signal and a first shaping filter, and an absolute value of a difference between a power of the first spectrum at a first center frequency and a power of the first spectrum at a first frequency being less than or equal to a first value. The first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of the first frequency domain resource, the first frequency domain resource includes M first frequency domain units, the first frequency is a frequency corresponding to an i-th first frequency domain unit in the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i<M, and i is an integer. The transceiver is configured to transmit the first signal on the first frequency domain resource, and the first signal is used for a perception service.

[0091] In some implementations of the fifth aspect, in combination with the fifth aspect, the processing unit is further configured to determine a third signal, the third signal being determined according to the second signal and a second shaping filter, an absolute value of a difference between a power of the second spectrum at a second center frequency and a power of the second spectrum at a second frequency being less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of a second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is a frequency corresponding to a jthsecond frequency domain unit of the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j

[0092] In some implementations of the fifth aspect, in combination with the fifth aspect, the first value is less than the second value.

[0093] In some implementations of the fifth aspect, in combination with the fifth aspect, the first value is less than or equal to 3 dB.

[0094] In some implementations of the fifth aspect, in combination with the fifth aspect, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold, an absolute value of a difference between a power of the first spectrum at the first center frequency and a power of the first spectrum at the first frequency is less than or equal to a third value. The first threshold is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0095] In some implementations, the transceiving unit is further configured to receive or transmit first information, the first information being used to indicate values of M elements corresponding to the first shaping filter, M being a positive integer. The transceiving unit is further configured to transmit the first signal on the first frequency domain resource, the first signal being obtained according to the second signal and the first shaping filter, the first signal being used for a perception service.

[0096] In some implementations, the first information includes a first parameter, the first parameter being used to determine the values of the M elements corresponding to the first shaping filter, M representing a number of first frequency domain units included in the first frequency domain resource.

[0097] In some implementations, the first parameter includes values of Q elements corresponding to a third shaping filter, the M elements corresponding to the first shaping filter being determined based on the Q elements corresponding to the third shaping filter, Q being a positive integer.

[0098] In some implementations, the first parameter includes at least one of the following: a filter type, a time domain pulse width corresponding to the filter, and a time domain pulse truncation parameter corresponding to the filter.

[0099] In some embodiments, the first information includes values of M elements corresponding to the first shaping filter, where M represents a number of first frequency domain units included in the first frequency domain resource.

[0100] In some embodiments, the transceiving unit is further configured to receive or transmit second information. The second information includes first indication information indicating a waveform or a set of waveforms associated with the first shaping filter. The second information includes second indication information indicating a sequence or a set of sequences associated with the first shaping filter. The second information includes third indication information indicating that the first shaping filter is used for a sensing service.

[0101] In some embodiments, the transceiving unit is further configured to transmit or receive third information used to determine values of M elements corresponding to the first shaping filter, or used to determine a first parameter used to determine values of M elements corresponding to the first shaping filter. The third information includes at least one of a minimum distance resolution, a minimum interference suppression capability, or an expected peak-to-average power ratio (PAPR) of the first signal.

[0102] In some embodiments, the transceiving unit is further configured to receive or transmit fourth information used to indicate the first frequency domain resource.

[0103] It should be understood that the beneficial effects of the above-described fifth aspect can refer to the first aspect and any possible implementation thereof, which will not be repeated here.

[0104] In a sixth aspect, a sensing device is provided, which has the function of implementing the first aspect, for example, the sensing device includes a module or unit or means corresponding to the operation of the first aspect, which can be implemented by software, or by hardware, or by a combination of software and hardware.

[0105] For example, the sensing device can be a receiving end, or a module or unit (such as a chip, or a chip system, or a circuit) in the receiving end for executing the method or operation or step or action described in the first aspect, or a device that can be used with the receiving end.

[0106] In one possible implementation, the sensing device includes a transceiving unit (or a communication module) and a processing unit.

[0107] Exemplarily, the transceiving unit is configured to receive the first signal on the first frequency domain resource, the first signal being obtained according to the second signal and the first shaping filter, and an absolute value of a difference between a power corresponding to a first center frequency of a first spectrum and a power corresponding to a first frequency of the first spectrum being less than or equal to a first value. The first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of the first frequency domain resource, the first frequency domain resource includes M first frequency domain units, the first frequency corresponds to a frequency of an i th first frequency domain unit in the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i<M, and i is an integer. Optionally, the processing unit is configured to obtain the perception parameter according to the first signal.

[0108] With reference to the sixth aspect, in some implementations of the sixth aspect, the transceiving unit is further configured to receive a third signal on a second frequency domain resource, the third signal being used for a communication service, the third signal being obtained according to the second signal and a second shaping filter, and an absolute value of a difference between a power corresponding to a second center frequency of a second spectrum and a power corresponding to a second frequency of the second spectrum being less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency corresponds to a frequency of a j th second frequency domain unit in the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j<N, and j is an integer.

[0109] With reference to the sixth aspect, in some implementations of the sixth aspect, the first value is less than the second value.

[0110] With reference to the sixth aspect, in some implementations of the sixth aspect, the first value is less than or equal to 3 dB.

[0111] With reference to the sixth aspect, in some implementations of the sixth aspect, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold, the absolute value of the difference between the power corresponding to the first center frequency of the first spectrum and the power corresponding to the first frequency of the first spectrum is less than or equal to a third value. The first threshold is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0112] In some implementations, the transceiving unit is further configured to send or receive first information, the first information being used to indicate values of M elements corresponding to the first shaping filter, M being a positive integer. The first signal is received on the first frequency domain resource, the first signal being obtained according to the second signal and the first shaping filter, and the first signal being used for a perception service.

[0113] In some embodiments, the first information comprises a first parameter, and the first parameter is used to determine values of M elements corresponding to the first shaping filter, where M represents a number of first frequency domain units included in the first frequency domain resource.

[0114] In some embodiments, the first parameter comprises values of Q elements corresponding to a third shaping filter, and the M elements corresponding to the first shaping filter are determined based on the Q elements corresponding to the third shaping filter, where Q is a positive integer.

[0115] In some embodiments, the first parameter comprises at least one of the following: a filter type, a time domain pulse width corresponding to the filter, and a time domain pulse truncation parameter corresponding to the filter.

[0116] In some embodiments, the first information comprises values of M elements corresponding to the first shaping filter, where M represents a number of first frequency domain units included in the first frequency domain resource.

[0117] In some embodiments, the transceiver is further configured to transmit or receive second information. The second information comprises first indication information, and the first indication information is used to indicate a waveform or a set of waveforms associated with the first shaping filter. The second information comprises second indication information, and the second indication information is used to indicate a sequence or a set of sequences associated with the first shaping filter. The second information comprises third indication information, and the third indication information is used to indicate that the first shaping filter is used for a sensing service.

[0118] In some embodiments, the transceiver is further configured to receive or transmit third information. The third information is used to determine values of M elements corresponding to the first shaping filter, or the third information is used to determine a first parameter, and the first parameter is used to determine values of M elements corresponding to the first shaping filter. The third information comprises at least one of the following: a minimum distance resolution, a minimum interference suppression capability, or an expected peak-to-average power ratio (PAPR) corresponding to the first signal.

[0119] In some embodiments, the transceiver is further configured to transmit or receive fourth information, and the fourth information is used to indicate the first frequency domain resource.

[0120] It should be understood that the beneficial effects of the sixth aspect described above can refer to the second aspect and any possible implementation manner thereof, and will not be described here.

[0121] In a seventh aspect, a sensing device is provided, which has the functions of the first aspect described above, for example, the sensing device comprises modules or units or means corresponding to the operations of the first aspect described above. The modules or units or means can be implemented by software, or by hardware, or by a combination of software and hardware.

[0122] Exemplarily, the perception apparatus can be a sending end, or a module or unit (such as a chip, or a chip system, or a circuit) corresponding to the method or operation or step or action described in the first aspect, or an apparatus capable of matching the sending end.

[0123] In a possible implementation, the perception apparatus comprises a transceiver (or a communication module).

[0124] Exemplarily, the transceiver is configured to receive or send first information, the first information being used to indicate values of M elements corresponding to a first shaping filter, M being a positive integer. The transceiver is further configured to send a first signal on a first frequency domain resource, the first signal being obtained according to a second signal and the first shaping filter, the first signal being used for a perception service.

[0125] In combination with the seventh aspect, in some implementations of the seventh aspect, the first information comprises a first parameter, the first parameter being used to determine the values of the M elements corresponding to the first shaping filter, M representing a number of first frequency domain units included in the first frequency domain resource.

[0126] In combination with the seventh aspect, in some implementations of the seventh aspect, the first parameter comprises values of Q elements corresponding to a third shaping filter, the M elements corresponding to the first shaping filter being determined based on the Q elements corresponding to the third shaping filter, Q being a positive integer.

[0127] In combination with the seventh aspect, in some implementations of the seventh aspect, the first parameter comprises at least one of the following: a filter type, a time domain pulse width corresponding to the filter, and a time domain pulse truncation parameter corresponding to the filter.

[0128] In combination with the seventh aspect, in some implementations of the seventh aspect, the first information comprises the values of the M elements corresponding to the first shaping filter, M representing the number of the first frequency domain units included in the first frequency domain resource.

[0129] In combination with the seventh aspect, in some implementations of the seventh aspect, the transceiver is further configured to receive or send second information. The second information comprises first indication information, the first indication information being used to indicate a waveform or a set of waveforms, the first shaping filter being associated with the waveform or the set of waveforms. The second information comprises second indication information, the second indication information being used to indicate a sequence or a set of sequences, the first shaping filter being associated with the sequence or the set of sequences. The second information comprises third indication information, the third indication information being used to indicate that the first shaping filter is used for the perception service.

[0130] In a seventh aspect, in some embodiments of the seventh aspect, the transceiver is further configured to transmit or receive third information, the third information being used to determine values of the M elements corresponding to the first shaping filter, or the third information being used to determine the first parameter, the first parameter being used to determine the values of the M elements corresponding to the first shaping filter. The third information includes at least one of the following: a minimum distance resolution, a minimum interference suppression capability, or an expected peak-to-average power ratio (PAPR) of the first signal.

[0131] In a seventh aspect, in some embodiments of the seventh aspect, the transceiver is further configured to receive or transmit fourth information, the fourth information being used to indicate the first frequency domain resource.

[0132] In some embodiments, an absolute value of a difference between a power corresponding to the first center frequency of the first spectrum and a power corresponding to the first frequency of the first spectrum is less than or equal to a first value. The first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of the first frequency domain resource, the first frequency domain resource includes M first frequency domain units, the first frequency is a frequency corresponding to an i-th first frequency domain unit of the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i

[0133] In some embodiments, the apparatus further includes a processing unit configured to determine a third signal, the third signal being determined according to the second signal and a second shaping filter, an absolute value of a difference between a power corresponding to a second center frequency of a second spectrum and a power corresponding to a second frequency of the second spectrum being less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of a second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is a frequency corresponding to a j-th second frequency domain unit of the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j

[0134] In some embodiments, the first value is less than the second value.

[0135] In some embodiments, the first value is less than or equal to 3 dB.

[0136] In some embodiments, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold, an absolute value of a difference between a power corresponding to the first center frequency of the first spectrum and a power corresponding to the first frequency of the first spectrum is less than or equal to a third value. The first threshold is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0137] It should be appreciated that the beneficial effects of the seventh aspect described above can be referred to the third aspect and any of its possible implementation forms described above, and will not be repeated here.

[0138] In an eighth aspect, a sensing apparatus is provided, which has the functions of the first aspect described above, e.g., the sensing apparatus comprises modules or units or means corresponding to the operations of the first aspect described above, which can be implemented by software, or by hardware, or by a combination of software and hardware.

[0139] By way of example, the sensing apparatus can be a receiver, or a module or unit (e.g., a chip, or a chip system, or a circuit) in the receiver for performing the method or operations or steps or actions described above with respect to the first aspect, or an apparatus that can be used in conjunction with the receiver.

[0140] In a possible implementation, the sensing apparatus comprises a transceiver unit (or a communication module).

[0141] By way of example, the transceiver unit is configured to use the first information to indicate values of M elements of the first shaping filter, M being a positive integer. The transceiver unit is further configured to receive a first signal on the first frequency domain resource, the first signal being obtained based on a second signal and the first shaping filter, the first signal being used for a sensing service.

[0142] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the first information comprises a first parameter, the first parameter being used to determine the values of the M elements of the first shaping filter, M representing a number of first frequency domain units included in the first frequency domain resource.

[0143] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the first parameter comprises values of Q elements of a third shaping filter, the M elements of the first shaping filter being determined based on the Q elements of the third shaping filter, Q being a positive integer.

[0144] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the first parameter comprises at least one of the following: a filter type, a time domain pulse width corresponding to the filter, a time domain pulse truncation parameter corresponding to the filter.

[0145] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the first information comprises values of M elements of the first shaping filter, M representing a number of first frequency domain units included in the first frequency domain resource.

[0146] In some implementations of the eighth aspect, in conjunction with the eighth aspect, the transceiver is further configured to transmit or receive second information. The second information includes first indication information indicating a waveform or a set of waveforms associated with the first shaping filter. The second information includes second indication information indicating a sequence or a set of sequences associated with the first shaping filter. The second information includes third indication information indicating that the first shaping filter is used for a perception service.

[0147] In some implementations of the eighth aspect, in conjunction with the eighth aspect, the transceiver is further configured to receive or transmit third information used to determine values of the M elements of the first shaping filter or used to determine a first parameter used to determine values of the M elements of the first shaping filter. The third information includes at least one of a minimum distance resolution, a minimum interference suppression capability, or an expected peak-to-average power ratio (PAPR) of the first signal.

[0148] In some implementations of the eighth aspect, in conjunction with the eighth aspect, the transceiver is further configured to transmit or receive fourth information indicating the first frequency domain resource.

[0149] In some implementations, an absolute value of a difference between a power of the first spectrum at a first center frequency and a power of the first spectrum at a first frequency is less than or equal to a first value. The first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of the first frequency domain resource, the first frequency domain resource includes M first frequency domain units, the first frequency is a frequency corresponding to an i-th first frequency domain unit of the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i

[0150] In some implementations, the transceiver is further configured to transmit a third signal on a second frequency domain resource, the third signal being used for a communication service. The third signal is determined according to the second signal and a second shaping filter, and an absolute value of a difference between a power of a second spectrum at a second center frequency and a power of the second spectrum at a second frequency is less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is a frequency corresponding to a j-th second frequency domain unit of the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j

[0151] In some implementations, the first value is less than the second value.

[0152] In some implementations, the first value is less than or equal to 3 dB.

[0153] In some implementations, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold value, an absolute value of a difference between a power corresponding to the first center frequency of the first spectrum and a power corresponding to the first frequency of the first spectrum is less than or equal to a third value. The first threshold value is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0154] It should be understood that the beneficial effects of the eighth aspect described above can refer to the fourth aspect described above and any possible implementation thereof, and will not be repeated here.

[0155] In a ninth aspect, a perception apparatus is provided. The perception apparatus can be the sending end or the receiving end described above. The perception apparatus includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals. The memory is configured to store a computer program. The processor is configured to invoke and run the computer program from the memory, so that the perception apparatus performs the method in any possible implementation of the first aspect to the fourth aspect described above.

[0156] Optionally, the processor is one or more, and the memory is one or more.

[0157] Optionally, the memory can be integrated with the processor, or the memory and the processor are separately arranged.

[0158] Optionally, the perception apparatus further includes a transmitter (transmitter) and a receiver (receiver).

[0159] In a tenth aspect, a perception apparatus is provided. The perception apparatus includes a memory and one or more processors. The memory is configured to store part or all of the necessary computer program or instructions for implementing the functions involved in any of the first aspect to the fourth aspect described above. The one or more processors are configured to execute the computer program or instructions, so that when the computer program or instructions are executed, the perception apparatus implements the method in any possible design or implementation of the first aspect to the fourth aspect described above.

[0160] In a possible design, the perception apparatus can further include an interface circuit, and the processor is configured to communicate with other devices or components through the interface circuit.

[0161] In a possible design, the perception apparatus can further include the memory.

[0162] The perception device can be a sending end, a communication module in the sending end, a chip responsible for communication function in the sending end, such as a Modem chip (also known as a baseband chip), or a system on chip (SoC) chip or a system in a package (SIP) chip containing a modem module.

[0163] The perception device can be a receiving end, a communication module in the receiving end, a circuit or chip responsible for communication function in the receiving end, or a functional module capable of invoking and executing a program in a network device.

[0164] In a eleventh aspect, a perception system is provided. The communication system includes a sending end and / or a receiving end, wherein the sending end is configured to perform the method in any possible implementation of the first aspect or the third aspect, and the receiving end is configured to perform the method in any possible implementation of the second aspect or the fourth aspect.

[0165] For example, the sending end can be the sending end itself, or a chip or circuit in the sending end, or a functional module capable of invoking and executing a program in the sending end; or the receiving end can be the receiving end itself, or a chip or circuit in the receiving end, or a central unit (CU) or a distributed unit (DU) in the receiving end, or a functional module capable of invoking and executing a program in the receiving end.

[0166] In a twelfth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores computer program codes or instructions, so that the method in any possible implementation of the first aspect or the second aspect is performed, for example, when a computer reads and executes the computer program codes or instructions.

[0167] In a thirteenth aspect, a computer program product is provided. The computer program product includes computer program codes or instructions, so that the method in any possible implementation of the first aspect to the fourth aspect is implemented. For example, when a computer reads and executes the computer program product, the method in any possible implementation of the first aspect to the fourth aspect is implemented.

[0168] In a fourteenth aspect, a computer program is provided. When the computer program is executed, the method in any possible implementation of the first aspect to the fourth aspect is implemented.

[0169] It should be understood that the beneficial effects of the ninth aspect to the fourteenth aspect described above can refer to any possible implementation of the first aspect to the fourth aspect described above, and will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0170] FIG. 1 is a schematic diagram of a wireless communication system suitable for embodiments of the present application;

[0171] FIG. 2 is a schematic diagram of an ORAN system suitable for embodiments of the present application;

[0172] FIG. 3 is a schematic diagram of an access network device suitable for embodiments of the present application;

[0173] FIG. 4 is a schematic diagram of a processing flow of a CP-OFDM technology provided by embodiments of the present application;

[0174] FIG. 5 is a schematic diagram of a processing flow of a DFT-s-OFDM technology;

[0175] FIG. 6 is a schematic diagram of a radio frequency index of an FDSS for a communication service provided by embodiments of the present application;

[0176] FIG. 7 is a schematic diagram of a self-blurring function using a radio frequency index of a communication service, shown by embodiments of the present application;

[0177] FIG. 8 is a schematic diagram of a flow of a sensing method provided by embodiments of the present application;

[0178] FIG. 9 is a schematic diagram of a signal processing flow provided by embodiments of the present application;

[0179] FIG. 10 is a schematic diagram of another signal processing flow provided by embodiments of the present application;

[0180] FIG. 11 is a schematic diagram of an FDSS satisfying a radio frequency index of a sensing service and a corresponding self-blurring function, shown by embodiments of the present application;

[0181] FIG. 12 is a schematic diagram of a flow of another sensing method provided by embodiments of the present application;

[0182] FIG. 13 is a schematic diagram of yet another signal processing flow provided by embodiments of the present application;

[0183] FIG. 14 is an exemplary block diagram of a sensing device 1000 provided by embodiments of the present application;

[0184] FIG. 15 is a schematic block diagram of a sensing device 2000 provided by embodiments of the present application;

[0185] FIG. 16 is a schematic block diagram of a chip system 3000 provided by embodiments of the present application;

[0186] FIG. 17 is a schematic block diagram of another chip system 4000 provided by embodiments of the present application. DETAILED DESCRIPTION

[0187] The technical solutions in the present application will be described below with reference to the drawings.

[0188] In order to facilitate understanding of the embodiments of the present application, the following points are explained:

[0189] (1) In the present application, the terms and / or descriptions of different embodiments are consistent and can be mutually referenced if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0190] (2) In the present application, “at least one” means one or more, and “multiple” means two or more. “And / or” describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following cases: A exists alone, A and B exist together, and B exists alone. In the literal description of the present application, the character “ / ” generally represents an “or” relationship between the front and rear associated objects. “At least one of the following” or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, at least one of a, b and c can represent: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c. Where a, b and c can be single or multiple.

[0191] (3) In the present application, “first”, “second” and various number designations (for example, #1, #2, etc.) indicate the differentiation for the convenience of description, and are not used to limit the scope of the embodiments of the present application. For example, different signals are distinguished, rather than used to describe a specific order or sequence. The objects thus described can be interchanged under appropriate circumstances, so as to be able to describe solutions other than the embodiments of the present application.

[0192] (4) In the present application, “when”, “in the case of” and “if” and other descriptions all mean that the device will make corresponding processing under certain objective circumstances, and are not limited to time, and do not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0193] (5) In the present application, “indicate” or “for indicating” can include direct indication and indirect indication. When describing that certain indication information is used to indicate A, it can include that the indication information directly indicates A or indirectly indicates A, and it does not mean that A must be carried in the indication information.

[0194] The indication manner in the embodiments of the present application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information. The to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending occasion of the sub-information can be the same or different, and the present application does not limit the sending method.

[0195] The "indication information" in the embodiments of the present application can be explicit indication, that is, directly indicated through signaling, or obtained according to the parameters indicated by the signaling, in combination with other rules or in combination with other parameters or by derivation. Or it can be implicit indication, that is, obtained according to rules or relationships, or according to other parameters, or by derivation. The present application does not make specific limitations.

[0196] (6) In the present application, "protocol" can refer to a standard protocol in the communication field, which can include 5G protocol, NR protocol and related protocols applied in future communication systems, and the present application does not limit it. "Predefined" can include predefinition. For example, protocol definition. "Preconfigured" can be realized by pre-storing corresponding codes, tables or other ways that can be used to indicate related information in the device, and the present application does not limit the implementation manner.

[0197] (7) In the present application, "communication" can also be described as "communication", "information transmission", "data processing" and the like. "Transmission" includes "sending" and "receiving". "Transmission" can be described as "output". In the present application, "message", "information", "signal" or "information element (IE)" and the like can be used interchangeably, and the name of the message or information is not limited in any way as long as the corresponding function can be realized.

[0198] "Sending information to XX (device)" can be understood as that the destination of the information is the device. It can include directly or indirectly sending information to the device. "Receiving information from XX (device), or receiving information from XX (device)" can be understood as that the source of the information is the device, which can include directly or indirectly receiving information from the device. The information can be processed as necessary between the source and the destination of the information transmission, such as format change, etc., but the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly, and will not be repeated here. In addition, "sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, "sending" or "receiving" can be carried out between devices, for example, sending or receiving through the air interface between network devices and terminal devices, and "sending" or "receiving" can also be carried out within the device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, a wire or an interface.

[0199] (8) In the present application, the words such as "exemplarily", "such as" and the like are used to represent examples, illustrations or descriptions. Any embodiment or design scheme described as "example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the word "example" is used to present the concept in a specific way. In the embodiments of the present application, "of", "corresponding", "corresponding" and "associated" are sometimes used interchangeably, and it should be pointed out that when their differences are not emphasized, the meanings they express are consistent.

[0200] (9) In the present application, when making a comparison between A and B, the description of "when A is greater than or equal to B, execution mode A is performed, and when A is less than or equal to B, execution mode B is performed", the specific implementation mode can be "when A is greater than or equal to B, execution mode A is performed, or when A is less than B, execution mode B is performed", or "when A is greater than B, execution mode A is performed, or when A is less than or equal to B, execution mode B is performed", which is not limited in the present application. In order to facilitate description, the implementation mode provided in the present application is taken as an example to be described as "when A is greater than or equal to B, execution mode A is performed, or when A is less than B, execution mode B is performed".

[0201] (10) In the present application, the configuration can be signaling configuration, or can be described as configuration signaling. For example, the signaling configuration includes configuration by signaling sent by the base station, and the signaling can be radio resource control (RRC) message, downlink control information (DCI), or system information block (SIB). Alternatively, the signaling configuration can also be configured to the terminal device by preconfigured signaling, or configured to the terminal device by preconfigured manner. Here, the preconfiguration is to define or configure the value of the corresponding parameter in advance in the protocol manner, and store it in the terminal device when communicating with the terminal device. The preconfigured message can be modified or updated under the condition that the terminal device is connected to the network.

[0202] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0203] The technical solutions provided in the present application can be applied to various communication systems, for example, a 5th generation (5G) or new radio (NR) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, and the like. The technical solutions provided in the present application can also be applied to future communication networks. The technical solutions provided in the present application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and internet of things (IoT) communication systems. The technical solutions provided in the present application can also be applied to non-terrestrial network (NTN) systems such as inter-satellite communication and satellite communication.

[0204] As an example, a satellite communication system includes a satellite base station and a terminal device. The satellite base station provides communication services for the terminal device. The satellite base station can also communicate with a base station. The satellite can act as a base station or a terminal device. The satellite can refer to a drone, a hot air balloon, a low earth orbit satellite, a medium earth orbit satellite, a high earth orbit satellite, and the like. The satellite can also refer to a non-ground base station or a non-ground device, and the like.

[0205] As an example, V2X communication can include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.

[0206] A device in a communication system can send a signal to another device or receive a signal from another device. The signal can include information, signaling, or data, and the like. The device can also be replaced by an entity, a network entity, a communication device, a communication module, a node, a communication node, and the like. The device is described as an example in the embodiments of the present application.

[0207] The terminal device in the embodiments of the present application can be a device or module with corresponding communication functions for accessing the above-mentioned communication system. The terminal device can include various devices with wireless communication functions, which can be used to connect people, things, machines, etc. The terminal device can be widely used in various scenarios, such as cellular communication, D2D, V2X, peer to peer, M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city UAV, robot, remote sensing, passive sensing, positioning, navigation, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device can be a user equipment (UE) of the 3rd generation partnership project (3GPP) standard, a terminal, a fixed device, a mobile station device or a mobile device, a subscriber unit, a handset, a vehicle-mounted device, a wearable device, a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a wireless data card, a personal digital assistant (PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handset, a laptop computer, a computer with wireless transceiver function, a smart book, a vehicle, a satellite, a global positioning system (GPS) device, an aircraft (such as a drone, a helicopter, a multi-copter, a quad-copter, or an airplane, etc.), a ship, a remote control device smart home device, an industrial device, a transport vehicle with wireless communication function, a communication module, a road side unit (RSU) with terminal function, or a device built-in in the above-mentioned device (such as a communication module, a modem or a chip in the above-mentioned device, etc.), or other processing devices connected to the wireless modem.

[0208] It should be understood that in some scenarios, the UE can also be used as a base station. For example, the UE can act as a scheduling entity, which provides sidelink signals between UEs in V2X, D2D or peer to peer scenarios, etc.

[0209] In the embodiments of the present application, the apparatus for implementing the function of the terminal device, i.e., the terminal apparatus, can be a terminal device or an apparatus capable of supporting the terminal device to implement the function, such as a chip system or a chip or a circuit or a communication module (i.e., a communication module performing a communication function), which can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of a chip or can include a chip and other discrete devices. In addition, program instructions for performing corresponding communication functions can also be configured in the apparatus.

[0210] The network device in the embodiments of the present application can be a device or a module with a corresponding communication function. The network device can be a device for communicating with the terminal device, and the network device can also be referred to as an access network device or a radio access network device, such as a network device, which can be a base station. The network device in the embodiments of the present application can refer to a radio access network (RAN) node (or device) for accessing the terminal device to a wireless network. The base station can broadly cover various names in the following or be replaced by the following names, such as: Node B (NodeB), evolved Node B (eNB), next generation Node B (gNB), relay station, access point, transmitting and receiving point (TRP), transmission point, primary station, secondary station, motor slide retainer (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, a modem or a chip for being arranged in the foregoing devices or apparatuses. The base station can also be a mobile switching center and a device assuming a base station function in D2D, V2X, M2M communication, a device assuming a base station function in a future communication system, etc. The base station can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the network device.

[0211] A base station can be fixed, or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, with one or more cells moving according to the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0212] In some deployments, the network device mentioned in embodiments of the present application can be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit-control plane (CU-CP)) and a user plane CU node (central unit-user plane (CU-UP)), and a DU node.

[0213] In some deployments, a plurality of RAN nodes cooperate to assist a terminal device to implement wireless access, and different RAN nodes respectively implement part of the functions of a base station. For example, a RAN node can be a CU, a DU, a CU-CP, a CU-UP, or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can also be included in the same network element, such as a BBU. The RU can be included in a radio frequency device or a radio frequency unit, such as an RRU, an AAU, or an RRH.

[0214] In different systems, the CU (or CU-CP and CU-UP), DU, or RU can also have different names, but those skilled in the art can understand their meanings. For example, the wireless access network can also be an open radio access network (O-RAN or ORAN) architecture, in which the CU can also be referred to as an open CU (O-CU), the DU can also be referred to as an open DU (O-DU), the CU-CP can also be referred to as an open CU-CP (O-CU-CP), the CU-UP can also be referred to as an open CU-UP (O-CU-UP), and the RU can also be referred to as an open RU (O-RU). Any of the CU (or CU-CP, CU-UP), DU, and RU in the present application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0215] In an embodiment of the present application, the apparatus for implementing the function of the network device can be a network device, or can be an apparatus capable of supporting the network device to implement the function, such as a chip system or a chip or a circuit or a communication module (i.e., a communication module performing a communication function), which can be installed in the network device. In an embodiment of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. In addition, program instructions for performing corresponding communication functions can also be configured in the apparatus. In an embodiment of the present application, only the apparatus for implementing the function of the network device is taken as an example of the network device, and the scheme of the embodiment of the present application is not limited.

[0216] The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water; and can also be deployed on airplanes, balloons and satellites in the air. The scenario in which the network device and the terminal device are located is not limited in the embodiment of the present application.

[0217] FIG. 1 is a schematic diagram of a wireless communication system suitable for an embodiment of the present application. As shown in FIG. 1, the wireless communication system includes a radio access network 100. The radio access network 100 can be a future or higher version radio access network, or a conventional (for example, 5G, 4G, 3G or 2G) radio access network. One or more terminal devices (120a-120j, collectively referred to as 120) can be connected to each other or connected to one or more network devices (110a, 110b, collectively referred to as 110) in the radio access network 100. The network elements in the wireless communication system are connected through an interface (such as NG, Xn), or connected through an air interface.

[0218] In the communication between the network device and the terminal device, the network device can manage one or more cells, and each cell can include at least one terminal device. The cell can be understood as an area within the coverage range of the wireless signal of the network device.

[0219] FIG. 1 is only a schematic diagram, and the wireless communication system can also include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices, etc., which are not shown in FIG. 1.

[0220] FIG. 2 is a schematic diagram of an ORAN system suitable for an embodiment of the present application. The ORAN system includes a core network, an access network device and a UE. As an example, the ORAN system can also include other components in addition to the components shown in FIG. 1, which are not limited in the present application.

[0221] The access network device can communicate with a core network (CN) through a backhaul. The access network device can communicate with a UE through an air interface. Specifically, a BBU in the access network device communicates with the core network through the backhaul. An RU in the access network device communicates with at least one UE through the air interface. The BBU communicates with at least one RU through a fronthaul, and the BBU and the RU can be co-located or not. The BBU includes at least one CU and at least one DU, and the CU and the DU can communicate through at least one midhaul. The BBU includes at least one CU and at least one DU, and the CU and the DU can communicate through at least one midhaul.

[0222] FIG. 3 is a schematic diagram of an access network device suitable for embodiments of the present application.

[0223] Optionally, the access network device includes a CU. The CU is a logical node that carries radio resource control (RRC), service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU can be connected to network nodes such as core network through some interfaces. For example, E2 interface. The CU can have part of the functions of the core network. The CU (e.g., the PDCP layer and / or higher layer of the CU) is connected to the DU (e.g., the radio link control (RLC) layer and lower layer of the DU) through some interfaces. For example, F1 interface. Optionally, the F1 interface can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol of the F1 interface, which defines the signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0224] As an example, the CU includes a CU-CP and a CU-UP. Among them, the CU-CP is a logical node carrying the control plane part of PDCP (PDCP-C) layer of RRC layer and packet data convergence protocol layer, used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network for implementing the control plane function. The network element in the core network for implementing the control plane function can be an access and mobility function network element, such as an access and mobility management (AMF) in a 5G system. The AMF network element is used to be responsible for the mobility management in the mobile network, such as location update of the terminal device, registration network of the terminal device, handover of the terminal device, etc. The CU-UP is a logical node carrying the user plane part of PDCP (PDCP-U) layer of SDAP layer and packet data convergence protocol layer, used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network for implementing the user plane function. The network element in the core network for implementing the user plane function, for example, a user plane function (UPF) in a 5G system, is used to be responsible for the forwarding and receiving of data in the terminal device. The above configuration of the CU and the DU is only an example, and in actual application, the CU and the DU can also be configured to have functions according to needs. For example, the CU or the DU can be configured to have more functions of protocol layers, or the CU or the DU can be configured to have partial processing functions of protocol layers. For example, part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to the service type or other system requirements, for example, according to the delay, the functions that need to meet the delay requirement are arranged in the DU, and the functions that do not need to meet the delay requirement are arranged in the CU.

[0225] Optionally, the access network device includes a DU. As shown in FIG. 3, the DU is a logical node carrying an RLC layer, a medium access control (MAC) layer, a higher physical (Higher PHY) layer and other functions. In some examples, the DU can control at least one RU. The DU is connected to the RU through some interfaces, which can be a front interface. In some examples, the Higher PHY layer includes part of the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.

[0226] Optionally, the access network device includes a RU. As shown in FIG. 3, the RU is a logical node that carries lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP transmission reception point (TRP) or a remote radio head (RRH) or other similar functional entity. In some examples, the Low-PHY includes portions of PHY processing such as fast fourier transform (FFT), inverse fast fourier transformation (IFFT), digital beamforming and filtering, and other processing functions. The RU communicates with one or more UEs over a wireless link.

[0227] The DU and the RU can be co-located or not co-located. The DU and the RU exchange control plane information and user plane information via a lower-layer split-CUS-plane (LLS-CUS) interface over a fronthaul link. The LLS-CUS can include a lower-layer split control (LLS-C) interface and a lower-layer split user (LLS-U) interface that provide control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and the RU. The DU and the RU have a LLS-M interface of the fronthaul link to exchange management information, and the management plane (M-Plane) refers to non-real-time management operations between the DU and the RU.

[0228] The DU and the RU can cooperate to collectively implement the functionality of the PHY layer. One DU can be connected to one or more RUs. The functionality of the DU and the RU can be configured in multiple ways according to design. For example, the DU is configured to implement baseband functionality, and the RU is configured to implement intermediate RF functionality. For another example, the DU is configured to implement high-layer functionality in the PHY layer, and the RU is configured to implement low-layer functionality in the PHY layer or to implement the low-layer functionality and RF functionality. The high-layer functionality in the PHY layer can include a portion of the functionality of the PHY layer that is closer to the MAC layer, and the low-layer functionality in the PHY layer can include another portion of the functionality of the PHY layer that is closer to the intermediate RF side.

[0229] FIGS. 1-3 are illustrative examples, and embodiments of the present application are not limited thereto.

[0230] To facilitate understanding of the embodiments of this application, the relevant technical terms in the embodiments of this application are explained below.

[0231] 1. Peak-to-average power ratio (PAPR): Wireless signals, observed in the time domain, are sinusoidal waves with constantly varying amplitudes. The peak amplitude within one cycle differs from that in other cycles; therefore, the average power and peak power differ between cycles. Over a relatively long period, the peak power represents the maximum transient power with a certain probability, typically taken as 0.01% (i.e., 10^-4). The ratio of this peak power to the total average power of the system is the PAPR.

[0232] PAPR is defined as the maximum signal envelope power (P). pdak ) and average power (P) avg The ratio of ) is expressed in decibels (dB), that is

[0233] PAPR is a value that measures the degree of envelope undulation of a signal. The larger the PAPR, the greater the degree of envelope undulation.

[0234] 2. Dangers of Excessively High PAPR: Wireless communication systems require power amplification to transmit signals over long distances. Due to technological and equipment cost limitations, a power amplifier typically operates linearly within a certain range. Exceeding this range leads to signal distortion. Signal distortion may prevent the receiving end from correctly interpreting the signal. To ensure the signal peak remains within the linear range of the power amplifier's amplification capability, the average power of the transmitted signal needs to be reduced. This results in lower power amplifier efficiency, or equivalently, a smaller coverage area.

[0235] 3. Orthogonal Frequency Division Multiplexing (OFDM): Features N... d A sequence S of symbols m (equals s) m The signal is mapped onto the corresponding subcarrier, weighted (i.e., precoding, frequency windowing, power control, etc.), and then subjected to an inverse Fourier transform to obtain the time-domain signal x. mOptionally, a cyclic prefix can be added, for example, cyclic prefix orthogonal frequency division multiplexing (CP-OFDM). Since OFDM signals on a single carrier exhibit a sinc function, they will have tails on both sides. These tails from multiple carriers may, with a certain probability, superimpose at a distance to form a point with very high peak power. In other words, using OFDM waveforms can easily lead to excessively high PAPR (Power Appearance Ratio).

[0236] Therefore, in order to meet coverage requirements, it is often necessary to choose a signal generation technology with low PAPR.

[0237] Figure 4 is a schematic diagram of the processing flow of CP-OFDM technology provided in an embodiment of this application.

[0238] As shown in Figure 4, in a CP-OFDM waveform, if the number of subcarriers allocated for transmission is M, the transmitter generates M points (or M data points, M modulation symbols, or M sequence elements, etc.). The transmitter maps these M points onto the M subcarriers, and then performs a K-point inverse fast fourier transform (IFFT) to transform the signal from the frequency domain to the time domain, obtaining a time-domain signal. For example, K is a power of 2, and K ≥ M. Then, a cyclic prefix (CP) is added to the time-domain signal, converting it from a discrete signal to a continuous signal. After up-conversion, it is transmitted via an RF link. Since the length of the IFFT can be greater than M, the excess input is padded with zeros. Adding a cyclic prefix after the IFFT avoids symbol interference.

[0239] When the receiver receives the signal through the channel and antenna, it sequentially performs processes such as removing the cyclic prefix, K-point FFT, and M-point subcarrier demapping to obtain a discrete time-domain sequence.

[0240] 4. Single-carrier: To reduce the PAPR of OFDM waveforms, a single-carrier waveform can be used to transmit data. A single-carrier can be understood as: transmitting data with N... d A sequence S of symbols m Perform N d Point Fourier transform yields the frequency domain signal S m The signal is mapped onto the corresponding subcarrier, weighted (i.e., precoding, frequency windowing, power control, etc.), and then subjected to inverse Fourier transform to obtain the time-domain signal X. m Finally, a cyclic prefix can be optionally added. A single carrier includes, but is not limited to, the following waveforms:

[0241] Single carrier-quadrature amplitude modulation (SC-QAM) waveform, Single carrier-Offset quadrature amplitude modulation (SC-OQAM) waveform, Discrete fourier transform spreading OFDM (DFT-s-OFDM) waveform, etc. In the embodiments of the present application, the network device and the terminal device can use the single carrier waveforms described above for communication.

[0242] The DFT-s-OFDM technology is described below.

[0243] 5. DFT-s-OFDM: a single carrier technology based on OFDM waveform. Compared with the above-mentioned OFDM waveform, the DFT-s-OFDM waveform can provide greater output power and higher power amplifier efficiency under the same power amplifier, thereby improving coverage and reducing energy consumption. In some embodiments, the DFT-s-OFDM signal is at least one of the following signals: DFT-s-OFDM with FDSS (frequency-domain spectral shaping), DFT-s-OFDM signal carrying real and imaginary separation, DFT-s-OFDM signal carrying PAM (pulse amplitude modulation) constellation, DFT-s-OFDM signal carrying real and imaginary separation with additive filter, DFT-s-OFDM signal carrying PAM constellation with additive filter, and SC-OQAM signal.

[0244] The DFT-s-OFDM waveform can be applied to uplink transmission, but in high-frequency communication, due to the limitation of device capability, the PAPR problem is more serious, so the DFT-s-OFDM waveform can also be applied to downlink transmission. The frequency band of high-frequency communication can be 24250MHz to 52600MHz in the NR system, can also be a frequency band higher than 52600MHz supported by the subsequent evolution of the NR system, or can also be a higher frequency band of the next generation communication system, such as a terahertz (THz) frequency band.

[0245] The DFT-s-OFDM technology has a discrete Fourier transform (DFT) processing before the OFDM processing, and therefore, the DFT-s-OFDM technology can also be referred to as a linear precoding OFDM technology. For the convenience of understanding, the DFT-s-OFDM technology is briefly introduced in combination with FIG. 5.

[0246] FIG. 5 is a schematic diagram of a processing flow of a DFT-s-OFDM technology.

[0247] As shown in FIG. 5, in the DFT-s-OFDM waveform, if the number of allocated subcarriers for transmission is M, the sending end generates M points (or referred to as M data points, or M modulation symbols, or M sequence elements, etc.). The sending end maps the M points to M subcarriers after M-point DFT, and then performs K-point IFFT to transform the signal from the frequency domain to the time domain to obtain a time-domain signal, for example, K is a power of 2, and K≥M; then, the time-domain signal is inserted with a CP; then, the discrete signal is converted into a continuous signal, and after frequency upconversion, the signal is sent through a radio frequency link. Because the length of IFFT can be greater than M, the part of the input that is more than IFFT is padded with zeros. After IFFT, adding a cyclic prefix can avoid symbol interference.

[0248] When the receiving end receives the signal through the channel and the antenna, the signal is sequentially processed by removing the cyclic prefix, K-point DFT, M-point subcarrier demapping, etc., to obtain a time-domain discrete sequence.

[0249] Compared with the PAPR of the general OFDM, the PAPR of the DFT-s-OFDM is lower, which can improve the power transmission efficiency of the mobile terminal, prolong the use time of the battery, and reduce the terminal cost, etc.

[0250] 6. Pilot: also referred to as a reference signal, the pilot involved in the present application includes but is not limited to the following reference signals:

[0251] Demodulation reference signals (DMRS), channel state information-reference signals (CSI-RS), tracking reference signals (TRS), sounding reference signals (SRS), phase tracking reference signals (PT-RS), positioning reference signals (PRS), sensing reference signals (SeRS), and the like.

[0252] It should be understood that the pilot in the present application can also be a signal capable of being carried in OFDM or single carrier in addition to the above-mentioned enumerated reference signals, which will not be illustrated one by one here. In the present application, DFT, FFT, Fourier transform can be replaced with each other, inverse discrete Fourier transform (IDFT), IFFT, inverse Fourier transform can be replaced with each other.

[0253] The above briefly introduces the scenarios to which the sensing method provided by the embodiments of the present application can be applied, and introduces the basic concepts that can be involved in the embodiments of the present application in combination with FIG. 1 to FIG. 3.

[0254] At present, for sensing services, commonly used sensing performance evaluation indexes include coverage performance, accuracy, resolution, and anti-interference ability of distance / speed / angle estimation, and the like. Among them, the PAPR of the time domain signal can be used to measure the coverage performance, and the ambiguity function is used to reflect the accuracy, resolution, and anti-interference ability of distance / speed / angle estimation.

[0255] For example, the ambiguity function of continuous signals x(t) and y(t) can be defined as If x(t) = y(t), A(τ, μ) is called an auto-ambiguity function, otherwise, it is called a cross-ambiguity function. The peak sidelobe level (APSL) of the auto-ambiguity function can be used to reflect the multi-target resolution capability. The peak sidelobe level (CPSL) of the cross-ambiguity function can reflect the interference suppression ability between multiple devices. The PAPR performance and the ambiguity function property are closely related to the waveform and sequence.

[0256] At present, the standard supports waveforms including CP-OFDM and DFT-s-OFDM, and supports sequences mainly including Zadoff-Chu (ZC) sequence and Gold sequence. Among them, when the reference signal is generated based on the Gold sequence, quadrature phase shift keying (QPSK) modulation or π / 2-binary phase shift keying (BPSK) modulation can be adopted. FIG. 4 and FIG. 5 respectively introduce CP-OFDM and DFT-s-OFDM in detail, which will not be repeated here.

[0257] Exemplarily, when DFT-s-OFDM waveform and π / 2BPSK modulation are adopted in uplink, the current standard allows the terminal device to adopt frequency domain spectrum shaping FDSS to reduce PAPR, and the base station does not know whether the terminal device adopts FDSS and the specific form of the adopted FDSS, but the FDSS adopted by the terminal needs to meet the radio frequency indicators defined in the standard. Specifically, when the terminal device adopts FDSS to send uplink signals, before or after "M subcarrier mapping" in FIG. 4 or FIG. 5, M points are multiplied by M elements of FDSS (or M elements corresponding to the spectrum of FDSS), wherein the number of elements of FDSS is equal to the number of subcarriers allocated for transmission, and FDSS needs to meet certain radio frequency indicators, and M is a positive integer. Exemplarily, assuming that the generated frequency domain signal is s = {s0, s1, s2, …, sM-1}, the M elements corresponding to the frequency domain of FDSS are g = {g0, g1, g2, …, gM-1}, and the frequency domain signal after FDSS is x = {x0, x1, x2, …, xM-1}, then x = s·g, wherein i = 0, 1, 2, …, M-1, or x = diag{g}·s, wherein diag{g} represents a diagonal matrix composed of g and the i-th element on the diagonal line of the diagonal matrix is g M-1 . M-1 . M-1 . i . i . i . i . In this application, FDSS can also be replaced by shaping filter, shaping filter, shaping filter, frequency domain power allocation, frequency domain shaping vector, etc.; FDSS can be expressed in the form of frequency domain sampling points, or in the form of time domain sampling points (the frequency domain sampling points corresponding to the time domain sampling points can be obtained by Fourier transform), which is not limited.

[0258] FIG. 6 is a schematic diagram of a radio frequency indicator of FDSS for a communication service according to an embodiment of the present application.

[0259] The RF indicators that the FDSS for the communication service needs to meet can be shown in equation (1).

[0260] wherein f c is the center frequency corresponding to the allocated frequency domain resource, f is any frequency corresponding to the allocated frequency domain resource, for example, the frequency domain resource includes M frequency domain units, f is the frequency corresponding to the i th frequency domain unit in the M frequency domain units, is the power (unit dB) corresponding to the frequency f c is the power (unit dB) corresponding to the frequency f, and X takes 25% of the allocated transmission bandwidth, 1≤i≤M, or 0≤i f

[0261] As shown in FIG. 6, the dashed line represents the RF indicators that the FDSS needs to meet as shown in equation (1), and the solid line represents an FDSS implementation that meets the indicators shown in equation (1).

[0262] However, the RF indicators of the FDSS defined in the current standard are for the communication service, and when the RF indicators are applied to the sensing service, the main lobe of the self-blurring function is widened, and the range resolution is reduced. FIG. 7 is a self-blurring function diagram using the RF indicators of the communication service according to an embodiment of the present application.

[0263] FIG. 7(a) shows an FDSS implementation corresponding to the FDSS indicators for the communication service. As shown in FIG. 7(b), the self-blurring function of the FDSS that meets the RF indicators shown in equation (1) when used for the sensing service, the main lobe of the self-blurring function is widened by about 41% compared to the self-blurring function without using the FDSS, which can seriously reduce the range resolution and thus reduce the sensing performance.

[0264] To solve the above problems, the embodiments of the present application provide a sensing method and device, and design an FDSS for the sensing service, thereby improving the sensing performance of the signal.

[0265] The method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following is an exemplary description taking the sending end and the receiving end as examples. The sending end can be replaced by a component (such as a chip or a chip system or a circuit or a communication module) of the sending end, and the receiving end can be replaced by a component (such as a chip or a chip system or a circuit or a communication module) of the receiving end. In addition, the steps described below can also be divided into steps executed by multiple execution subjects, which can be logically and / or physically separated.

[0266] ​In the frequency domain, a resource can be referred to as a frequency domain resource. A frequency domain resource can include one or more frequency domain units. A frequency domain unit can be, for example, a resource block (RB), a subcarrier, a resource block group (RBG), a predefined subband, a precoding resource block group (PRG), a bandwidth part (BWP), a resource element (RE) (also referred to as a resource unit or resource particle), a carrier, or the like. Embodiments of the present application are mainly described by taking a subcarrier as an example of a frequency domain unit.

[0267] In a sensing scenario, for example, the sending end can be a terminal device, and the receiving end can be a network device. For another example, the sending end can be a network device, and the receiving end can be a terminal device. For another example, the sending end can be a terminal device #1, and the receiving end can be a terminal device #2. For another example, the sending end can be a terminal device #1, and the receiving end can also be a terminal device #1. The embodiments of the present application do not limit this.

[0268] FIG. 8 is a flow diagram of a sensing method according to an embodiment of the present application. The method shown in FIG. 8 includes the following steps.

[0269] S810, the sending end determines a first signal, which is obtained according to a second signal and a first shaping filter.

[0270] The absolute value of the difference between the power of the first spectrum at the first center frequency and the power of the first spectrum at the first frequency is less than or equal to a first value. The first spectrum is the spectrum of the first shaping filter or the spectrum of the first signal. The first center frequency is the center frequency of the first frequency domain resource, the first frequency domain resource includes M first frequency domain units, the first frequency is the frequency corresponding to the i-th first frequency domain unit in the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i<M, i is an integer.

[0271] In some implementations, the first value is less than a second value, and the second value is associated with a second shaping filter used for communication services (or data transmission). In other words, the second shaping filter is used for communication data transmission or communication reference signal transmission or communication control signal transmission.

[0272] It should be understood that the first shaping filter is used for the sensing service (or referred to as sensing sequence transmission, or sensing reference signal transmission). In other words, the first shaping filter is for sensing signal transmission. Alternatively, the first shaping filter is for sensing reference signal transmission. The first frequency domain resource is used for the sensing service. In other words, the sensing signal is transmitted on the first frequency domain resource. Alternatively, the sensing reference signal is transmitted on the first frequency domain resource. That is, the first value is for the sensing service, and the second value is for the communication service. The shaping filter can be understood as the aforementioned FDSS.

[0273] It should also be understood that the first value and the second value can be pre-defined by a protocol, or in other words, the first value and the second value can be defined in the sending end and the receiving end by a protocol. In addition, the relationship that the absolute value of the difference between the power corresponding to the first center frequency and the power corresponding to the first frequency is less than or equal to the first value can also be pre-defined by a protocol. This relationship can be referred to as a first relationship. In other words, the first relationship can be understood as the radio frequency index of the FDSS for the sensing service, or the constraint or limitation of the FDSS for the sensing service.

[0274] The first signal can also be understood as being obtained by performing the first shaping filter on the second signal, or in other words, the first signal is obtained by performing the first shaping filter on the second signal. Alternatively, the first signal can also be understood as being obtained by performing element-by-element multiplication on the M points included in the second signal and the M elements corresponding to the first shaping filter, and the first signal also includes M points. Therefore, the M points included in the first signal are obtained by performing frequency domain spectrum shaping on the M points included in the second signal.

[0275] Optionally, the sending end generates a second signal, and the M points included in the second signal can be understood as M data points, M modulation symbols, or M sequence elements, etc. included in the second signal.

[0276] FIG. 9 is a signal processing flow diagram provided by an embodiment of the present application. FIG. 9 shows the processing flow of signals by the first shaping filter in two sending ends.

[0277] As shown in FIG. 9, in the first mode, if the number of frequency domain units (e.g., subcarriers) allocated for transmission is M, the signal #1 generated by the sending end includes M points (or M data points, or M modulation symbols, or M sequence elements, etc.). The sending end maps the M points of the signal #1 to the M subcarriers, and the obtained signal #2 also includes M points. Then, the sending end element-by-element multiplies the M points of the signal #2 in the frequency domain with the M elements corresponding to the first shaping filter, and the obtained signal #3 also includes M points. Then, the K-point IFFT is performed to transform the signal #3 from the frequency domain to the time domain to obtain a time domain signal, for example, K is a power of 2, and K≥M, then the time domain signal is added with a cyclic prefix CP, then the discrete signal is converted into a continuous signal, and after up-conversion, it is transmitted through a radio frequency link. Since the length of the IFFT can be greater than M, the signal #3 can be zero-padded to K points before IFFT. After IFFT, adding a cyclic prefix can avoid inter-symbol interference. The signal #2 in the first mode can be understood as the second signal in the above, and the signal #3 can be understood as the first signal.

[0278] As shown in FIG. 9, in the second mode, if the number of frequency domain units (e.g., subcarriers) allocated for transmission is M, the signal #1 generated by the sending end includes M points (or M data points, or M modulation symbols, or M sequence elements, etc.). The sending end element-by-element multiplies the M points of the signal #1 in the frequency domain with the M elements corresponding to the first shaping filter, and the obtained signal #4 also includes M points. Then, the sending end maps the signal #4 to the M subcarriers, and the obtained signal #5 also includes M points. Then, the K-point IFFT is performed to transform the signal #5 from the frequency domain to the time domain to obtain a time domain signal, for example, K is a power of 2, and K≥M, then the time domain signal is added with a cyclic prefix CP, then the discrete signal is converted into a continuous signal, and after up-conversion, it is transmitted through a radio frequency link. The signal #1 in the second mode can be understood as the second signal in the above, and the signal #4 can be understood as the first signal.

[0279] It should be understood that the first signal or the first shaping filter determined by the sending end satisfies the first relationship, and if the receiving end does not know the specific value of the first shaping filter adopted by the sending end, the receiving end does not need to process the received signal based on the first shaping filter.

[0280] It should also be understood that if the waveform of the signal is CP-OFDM, the M points included in the signal #1 are M points without DFT; if the waveform of the signal is DFT-s-OFDM, the M points included in the signal #1 are M points with DFT. In addition, the present application does not limit the specific waveform, or in other words, the steps other than the FDSS operation can also include other steps, or part of the steps can be omitted, or the order of part of the steps can be exchanged, etc.

[0281] Optionally, a third signal is determined according to the second signal and the second shaping filter. An absolute value of a difference between a power corresponding to the second center frequency of the second spectrum and a power corresponding to the second frequency of the second spectrum is less than or equal to a second value. The second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal.

[0282] wherein the second center frequency is a center frequency of a second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is a frequency corresponding to the jth second frequency domain unit, N is a positive integer, 1≤j≤N, or 0≤j

[0283] It should be understood that the second shaping filter is used for a communication service, or the second shaping filter is for data transmission. The relationship that the absolute value of the difference between the power corresponding to the second center frequency and the power corresponding to the second frequency is less than or equal to the second value can be pre-defined by a protocol, or defined in the sending end and the receiving end. In other words, the relationship can be understood as a radio frequency index of the FDSS for the communication service, or a constraint or limitation of the FDSS for the communication service.

[0284] That is, the protocol can define the radio frequency index of the FDSS for the sensing service and the radio frequency index of the FDSS for the communication service respectively.

[0285] FIG. 10 is another signal processing flowchart provided by an embodiment of the present application. FIG. 10 shows a flow of implementing sensing-communication integration by the sending end through the first shaping filter and the second shaping filter. In FIG. 10, the first shaping filter used for the sensing service is the second mode in FIG. 9, and the embodiment is described taking this as an example.

[0286] As shown in FIG. 10, for the sensing service, if the number of frequency domain units (e.g., subcarriers) allocated for transmission is M, the signal #1 generated by the sending end includes M points (or M data points, or M modulation symbols, or M sequence elements, etc.). The sending end multiplies the M points of the signal #1 in the frequency domain with the M elements corresponding to the first shaping filter, and the obtained signal #4 also includes M points. Then the sending end maps the signal #4 onto the M subcarriers, and the obtained signal #5 also includes M points. Then K-point IFFT is performed to transform the signal #5 from the frequency domain to the time domain to obtain a time domain signal, where K is a power of 2 and K≥M, and then a cyclic prefix (CP) is added to the time domain signal, and then the discrete signal is converted into a continuous signal, and after up-conversion, the signal is transmitted through a radio frequency link. The signal #1 can be understood as the second signal in the above, and the signal #4 can be understood as the first signal.

[0287] For the communication service, if the number of frequency domain units (e.g., subcarriers) allocated for transmission is M (i.e., the case where the N values in the N second frequency domain units are the same as the value of M is taken as an example), the signal #1 generated by the sending end includes M points (or M data points, or M modulation symbols, or M sequence elements, etc.). The sending end element-by-element multiplies the M points of the signal #1 in the frequency domain with the M elements corresponding to the second shaping filter, and the obtained signal #6 also includes M points. Then the sending end maps the signal #6 onto the M subcarriers, and the obtained signal #7 also includes M points. Then K-point IFFT is performed to transform the signal #7 from the frequency domain to the time domain to obtain a time domain signal, where K is a power of 2 and K≥M, and then a cyclic prefix (CP) is added to the time domain signal, and then the discrete signal is converted into a continuous signal, and after up-conversion, the signal is transmitted through a radio frequency link. The signal #1 can be understood as the second signal in the above, and the signal #6 can be understood as the third signal.

[0288] It should be understood that the signal #1 for the sensing service and the signal #1 for the communication service can be the same or different. That is, the sending end can use the same signal #1 to generate the signal #4 and the signal #6 respectively.

[0289] For the integrated sensing and communication scenario, the first shaping filter and the second shaping filter in FIG. 10 can be the same, for example, the M points of the signal #1 in the frequency domain are multiplied with the M elements corresponding to the first shaping filter element by element. The signal #1 can be used for the sensing service or the communication service.

[0290] It should be understood that the first signal or the first shaping filter determined by the sending end satisfies the first relationship, and if the receiving end does not know the specific value corresponding to the first shaping filter adopted by the sending end, the receiving end does not need to process the received signal based on the first shaping filter. Similarly, if the receiving end does not know the specific value corresponding to the second shaping filter adopted by the sending end, the receiving end does not need to process the received signal based on the second shaping filter.

[0291] In a possible implementation, the first frequency is a frequency corresponding to an i th first frequency domain unit of M first frequency domain units included in the first frequency domain resource. It can also be understood that the first frequency is a frequency corresponding to any one of all first frequency domain units included in the first frequency domain resource. The frequency corresponding to the i th first frequency domain unit can be understood as a center frequency or a frequency of any one frequency point of the i th first frequency domain unit. For example, when the first frequency domain unit is a subcarrier, the frequency corresponding to the first frequency domain unit can be understood as a center frequency of the subcarrier.

[0292] For example, the absolute value of the difference between the power corresponding to the first center frequency and the frequency corresponding to the first frequency is less than or equal to the first value, which can be shown in formula (2).

[0293] Wherein, f c represents the first center frequency, represents the power (unit dB) corresponding to the first center frequency, f represents the first frequency, P f represents the power (unit dB) corresponding to the first frequency, Y0 represents the maximum value of the power corresponding to the first frequency relative to the power corresponding to the first center frequency, that is, Y0 represents the first value.

[0294] In a possible implementation, the first value is less than or equal to 3dB. It should be understood that the application mainly describes the size of the value in dB, and in addition to this, the size of the value can also be described in the form of linear value. When described in the form of linear value, the difference value can be replaced by the ratio value, which is not limited.

[0295] In a possible implementation, when the absolute value of the difference between the first frequency and the first center frequency is less than or equal to the first threshold value, the absolute value of the difference between the power corresponding to the first center frequency and the power corresponding to the first frequency of the spectrum of the first signal is less than or equal to the third value. The first threshold value is less than the bandwidth size of the first frequency domain resource, and the third value is less than the first value.

[0296] It should be understood that the third value can be predefined by the protocol or defined in the sending end and the receiving end. Moreover, the relationship that the absolute value of the difference between the power corresponding to the first center frequency and the power corresponding to the third frequency is less than or equal to the third value can be referred to as a second relationship, and the second relationship can also be predefined by the protocol.

[0297] In other words, in the radio frequency indicators of the FDSS of the sensing service, different power indicators can be used for different frequency intervals. Generally speaking, the more the frequency intervals are divided, the more accurate or stricter the constraints on the FDSS can be described according to specific requirements, so that the FDSS under the constraints can better meet the expected performance. Embodiments of the present application do not limit the number of frequency intervals, and do not limit the number of power indicators corresponding to the frequency intervals. The following will be described in detail taking two frequency intervals as an example.

[0298] For example, the first relationship and the second relationship can be as shown in formula (3).

[0299] It should be understood that the absolute value of the difference between the frequency corresponding to the a first frequency domain units included in the first frequency domain resource and the center frequency of the first frequency domain resource is less than or equal to the first threshold value. The absolute value of the difference between the frequency corresponding to the b first frequency domain units included in the first frequency domain resource and the center frequency of the first frequency domain resource is greater than the first threshold value. Wherein, M=a+b, a and b are positive integers.

[0300] Wherein, f c represents the first center frequency; represents the power (unit dB) corresponding to the first center frequency; f represents the frequency corresponding to the i th first frequency domain unit included in the first frequency domain resource, that is, the first frequency; P f represents the power (unit dB) corresponding to the first frequency when the absolute value of the difference between the first frequency and the first center frequency is greater than the first threshold value; P f represents the power (unit dB) corresponding to the first frequency when the absolute value of the difference between the first frequency and the first center frequency is less than or equal to the first threshold value; X0 represents the first threshold value, for example, the first threshold value is 25% of the bandwidth size of the first frequency domain resource; Y1 represents the maximum value of the power attenuation of the first frequency relative to the power attenuation of the first center frequency, that is, Y1 represents the third value; Y2 represents the maximum value of the power attenuation of the first frequency relative to the power attenuation of the first center frequency, that is, Y2 represents the first value.

[0301] As a possible implementation manner, the third value is 1 dB or 2 dB, and the first value is 3 dB or 4 dB, that is, the third value is less than the first value.

[0302] It should be understood that Y0 in formula (2) is referred to as a first value, and Y2 in formula (3) is also referred to as a first value, and the two can be taken as parallel schemes, and therefore the value of the first value in formula (2) and the value of the first value in formula (3) can be the same or different. Embodiments of the present application do not limit this.

[0303] S820, the sending end sends the first signal to the receiving end on the first frequency domain resource, and the receiving end receives the first signal from the sending end on the first frequency domain resource, and the first signal is used for a sensing service.

[0304] Exemplarily, the first signal is a sensing sequence, or the first signal is a sensing reference signal.

[0305] Optionally, the sending end sends a third signal on the second frequency domain resource, and the third signal is used for a communication service. For example, the third signal is communication data.

[0306] Optionally, S830, the receiving end acquires a channel parameter or a sensing parameter according to the first signal.

[0307] As a possible implementation manner, the receiving end processes the first signal according to the first shaping filter to acquire the channel parameter or the sensing parameter. For example, the second signal is a sequence or a reference signal, and the sending end determines the second signal and / or the first shaping filter and indicates the receiving end, or the receiving end determines the second signal and / or the first shaping filter and indicates the sending end.

[0308] The receiving end obtains a local sequence (or a local reference signal) based on the second signal and the first shaping filter, and acquires a channel parameter or a sensing parameter (for example, a multipath parameter, a time delay parameter, a Doppler parameter, an angle parameter, etc.) based on the received signal and the local sequence (or the local reference signal). For example, the receiving end converts the received signal to a frequency domain (referred to as a received signal #A) through Fourier transform, obtains a local frequency domain sequence based on the second signal and the first shaping filter, performs conjugate point multiplication on the received signal #A and the local frequency domain sequence to obtain a received signal #B, and then converts the received signal #B to a time domain through inverse Fourier transform to obtain a ambiguity function, and based on the ambiguity function, time delay, Doppler and other sensing parameters can be acquired; or the receiving end converts the local frequency domain sequence to a local time domain sequence through inverse Fourier transform, and then performs correlation operation on the received signal and the local time domain sequence to obtain an ambiguity function, and based on the ambiguity function, time delay, Doppler and other sensing parameters can be acquired.

[0309] For the sensing service, as shown in FIG. 9, if the sending end sends the signal through the first mode, the receiving end receives the signal through the antenna, and then removes the cyclic prefix, performs K-point FFT on the signal to obtain M points included in the signal #8. Then, the receiving end obtains the local sequence (or the local reference signal) according to the signal #2 and the first shaping filter. The receiving end obtains the channel parameter or the sensing parameter according to the local sequence (or the local reference signal) and the signal #8; or, the receiving end obtains two time-domain discrete sequences after the signal #8 and the local sequence (or the local reference signal) are subjected to M-point subcarrier demapping and the like. The receiving end obtains the channel parameter or the sensing parameter according to the two time-domain discrete sequences.

[0310] For the sensing service, as shown in FIG. 9, if the sending end sends the signal through the second mode, the receiving end receives the signal through the antenna, and then removes the cyclic prefix, performs K-point FFT, and performs M-point subcarrier demapping on the signal to obtain M points included in the signal #9. The receiving end obtains the local sequence (or the local reference signal) according to the signal #1 and the first shaping filter. Then, the receiving end obtains the channel parameter or the sensing parameter according to the signal #9 and the local sequence (or the local reference signal).

[0311] For the sensing service, as shown in FIG. 9, if the sending end sends the signal through the first mode, the receiving end receives the signal through the antenna, and then removes the cyclic prefix, performs K-point FFT on the signal to obtain M points included in the signal #8. Then, the receiving end obtains the local sequence (or the local reference signal) according to the signal #2 and the first shaping filter. The receiving end obtains the channel parameter or the sensing parameter according to the local sequence (or the local reference signal) and the signal #8; or, the receiving end obtains two time-domain discrete sequences after the signal #8 and the local sequence (or the local reference signal) are subjected to M-point subcarrier demapping and the like. The receiving end obtains the channel parameter or the sensing parameter according to the two time-domain discrete sequences.

[0312] In the technical solution, the radio frequency index of the first shaping filter associated with the sensing service is predefined by a protocol, or the radio frequency index of the first shaping filter associated with the sensing service is predefined in the sending end and the receiving end. Compared with directly using the radio frequency index of the shaping filter for the communication service, using the shaping filter for the sensing service can improve the sensing performance (for example, improve the range resolution). Compared with not using the shaping filter, using the first shaping filter associated with the sensing service can reduce the PAPR, thereby improving the coverage performance. Therefore, using the first shaping filter for the sensing service proposed in the present application can improve the overall sensing performance. In addition, by predefining the radio frequency index of the first shaping filter associated with the sensing service by the protocol, the signaling overhead of the sending end and the receiving end can be saved.

[0313] FIG. 11 is a schematic diagram of an FDSS satisfying a radio frequency index of a sensing service and a corresponding self-masking function according to an embodiment of the present application.

[0314] FIG. 11(a) is an implementation of using the radio frequency index of the FDSS for the communication service and an implementation of using the radio frequency index of the FDSS for the sensing service, respectively. Exemplarily, if the first frequency is a frequency corresponding to any one of all frequency domain units included in the first frequency domain resource, the implementation of the radio frequency index of the FDSS for the sensing service shown in FIG. 11(a) is an implementation of the first value being 3 dB. As shown in FIG. 11(a), the variation range of power in the implementation of using the radio frequency index of the FDSS for the sensing service is much smaller than that in the implementation of using the radio frequency index of the FDSS for the communication service.

[0315] As shown in FIG. 11(b), the main lobe of the self-masking function when the FDSS with the radio frequency index satisfying the first value being 3 dB is used is wider than the main lobe of the self-masking function when the FDSS with the radio frequency index satisfying formula (1) is used. Therefore, the FDSS for the sensing service (the first shaping filter for the sensing service) can guarantee better range resolution, thereby improving the sensing performance.

[0316] FIG. 12 is a schematic diagram of a flow of another sensing method according to an embodiment of the present application. The method shown in FIG. 12 includes the following steps. It should be understood that the execution subject of FIG. 12 is exemplarily described by taking the sending end and the receiving end as examples, and the specific form of the execution subject is not limited. Other examples can be referred to the related description in FIG. 8, which will not be described herein.

[0317] In S1201, the sending end receives or sends first information, and the receiving end sends or receives the first information. The first information is used to indicate the values of the M elements corresponding to the first shaping filter, and M is a positive integer.

[0318] Specifically, case one, if the sending end is a terminal device and the receiving end is a network device, the sending end receives the first information sent from the receiving end. If the sending end is a network device and the receiving end is a terminal device, the receiving end receives the first information sent from the sending end. Case two, if the sending end is a terminal device #1 and the receiving end is a terminal device #2, the sending end receives the first information from the network device, the receiving end receives the first information from the network device or the receiving end receives the first information from the sending end. Case three, if the sending end is a terminal device #1 and the receiving end is also a terminal device #1, the terminal device #1 receives the first information from the network device.

[0319] It should be understood that for case two and case three, S1201 is not directly transmitted between the sending end and the receiving end, and S1201 shown in FIG. 12 is drawn taking case one as an example.

[0320] In a possible implementation, the first information includes a first parameter, and the first parameter is used to determine values of M elements corresponding to the first shaping filter, where M represents a number of first frequency domain units included in the first frequency domain resource.

[0321] In some implementations, the first parameter can include at least one of the following: a filter type, a time domain pulse width corresponding to the filter, and a time domain pulse truncation parameter corresponding to the filter.

[0322] For example, the first parameter can be related to a parameter of a conventional filter such as a root raised cosine (RRC) filter, a Gaussian filter, a Chebyshev filter, or the like. For example, a raised cosine roll-off parameter and a truncation parameter of an RRC filter, a pulse width and a standard deviation of a Gaussian filter, a filter order and a desired cutoff frequency of a Chebyshev filter, and the like.

[0323] Optionally, the sending end determines the values of the M elements corresponding to the first shaping filter according to the parameter related to the conventional filter.

[0324] In some implementations, the first information includes values of Q elements corresponding to a third shaping filter, the M elements corresponding to the first shaping filter are generated based on the Q elements corresponding to the third shaping filter, M represents a number of frequency domain units included in the first frequency domain resource, and Q is a positive integer.

[0325] Optionally, the values of the Q elements corresponding to the third shaping filter can also be predefined in the sending end or the receiving end.

[0326] That is, the number of elements of the third shaping filter included in the first information and the number of the first shaping filter can be different. In other words, the values of the Q elements corresponding to the third shaping filter included in the first information can be understood as the values of Q common elements included in the common shaping filter. The first information includes discrete amplitudes of the Q elements corresponding to the third shaping filter, or the first information includes discrete amplitudes and discrete phases of the Q elements corresponding to the third shaping filter.

[0327] Specifically, the sending end or the receiving end obtains the values of the M elements corresponding to the first shaping filter according to the values of the Q elements corresponding to the third shaping filter, by sequences of different lengths or a different number of frequency domain units (such as subcarriers).

[0328] Exemplarily, M is less than Q, and the sending end or the receiving end down-samples the values of the Q elements corresponding to the third shaping filter to obtain the values of the M elements corresponding to the first shaping filter. For example, the number of elements M of the sequence mapped to the frequency domain is 36, the number of elements Q corresponding to the common filter is 72, and the elements corresponding to the common filter are down-sampled by 2 to obtain the values of the 36 elements corresponding to the first shaping filter.

[0329] Exemplarily, M is greater than Q, and the sending end or the receiving end interpolates the values of the Q elements corresponding to the third shaping filter to obtain the values of the M elements corresponding to the first shaping filter. For example, the number of elements M of the sequence mapped to the frequency domain is 120, the number of elements Q corresponding to the common filter is 12, the Q elements corresponding to the common filter are transformed to the time domain by IDFT to obtain Q elements in the time domain, the Q elements in the time domain are zero-padded to M elements, and then M-point DFT is performed to transform to the frequency domain to obtain the values of the 120 elements corresponding to the first shaping filter. In this application, Fourier transform, DFT, and FFT can be replaced with each other, and inverse Fourier transform, IDFT, and IFFT can be replaced with each other.

[0330] In some implementations, the first information includes the values of the elements corresponding to the first shaping filter.

[0331] Optionally, the values of the elements corresponding to the first shaping filter can be generated according to a first parameter.

[0332] Optionally, the values of the elements corresponding to the first shaping filter can also be obtained based on perception optimization.

[0333] For example, the values of the elements corresponding to the first shaping filter are obtained based on optimization theory. For another example, the values of the elements corresponding to the first shaping filter are obtained based on an artificial intelligence (AI) tool.

[0334] As a possible implementation, the first information includes values of M elements corresponding to the first shaping filter, M represents a number of frequency domain units included in the first frequency domain resource, and M is a positive integer.

[0335] That is, the number of elements of the first shaping filter included in the first information is the same as the number of first frequency domain units included in the first frequency domain resource.

[0336] For example, if the network device configures a sequence length of M for the terminal device, or the network device configures a number of subcarriers of M for the terminal device to transmit, the first information includes discrete amplitudes of M elements corresponding to the first shaping filter, or the first information includes discrete amplitudes and discrete phases of M elements corresponding to the first shaping filter.

[0337] It should be understood that different first shaping filters can be configured for different sequence lengths or subcarrier numbers, and the number of first shaping filters is not limited in the embodiments of the present application.

[0338] Optionally, S1202, a first signal is determined, the first signal is obtained according to the second signal and values of M elements corresponding to the first shaping filter, and the first signal is used for a sensing service.

[0339] For example, the first signal is for a sensing sequence, or the first signal is for a sensing reference signal.

[0340] Optionally, a third signal is determined, the third signal is obtained according to the second signal and the second shaping filter, and the third signal is used for a communication service.

[0341] For example, the third signal is for data transmission of a communication service.

[0342] For a sensing scenario, the process of determining the first signal by the sending end can refer to FIG. 9, which is not described herein. For an integrated sensing and communication scenario, the process of determining the first signal and the third signal by the sending end can refer to FIG. 10, which is not described herein.

[0343] S1203, the sending end sends the first signal to the receiving end on the first frequency domain resource, and the receiving end receives the first signal from the sending end on the first frequency domain resource, the first signal is used for a sensing signal, and M represents a number of first frequency domain units included in the first frequency domain resource.

[0344] For example, the first signal is a sensing sequence, or the first signal is a sensing reference signal.

[0345] Optionally, the sending end sends the third signal to the receiving end on the second frequency domain resource, and the receiving end receives the third signal from the sending end on the second frequency domain resource, the third signal is used for a communication service. For example, the third signal is communication data.

[0346] Optionally, the receiving end obtains the channel parameter or the sensing parameter according to the first signal.

[0347] FIG. 13 is another signal processing flowchart provided by an embodiment of the present application. The process of determining the first signal by the sending end in FIG. 13 has been described in detail in FIG. 9, and will not be repeated here.

[0348] For the sensing service, after the first shaping filter is synchronized between the sending end and the receiving end, if the sending end sends the signal by the second mode, the receiving end processes the signal by the third mode. Specifically, when the receiving end receives the signal through the antenna, the signal is sequentially subjected to the removal of the cyclic prefix and K-point FFT to obtain M points included in signal #10. Then, the receiving end performs M-point subcarrier demapping on signal #10 to obtain M points included in signal #11. Then, the first shaping filter is inversely operated on signal #11 to obtain M points included in signal #12, and then the channel parameter or the sensing parameter is obtained according to signal #12.

[0349] For the sensing service, after the first shaping filter is synchronized between the sending end and the receiving end, if the sending end sends the signal by the second mode, the receiving end processes the signal by the third mode. Specifically, when the receiving end receives the signal through the antenna, the signal is sequentially subjected to the removal of the cyclic prefix and K-point FFT to obtain M points included in signal #10. Then, the receiving end performs M-point subcarrier demapping on signal #10 to obtain M points included in signal #11. Then, the first shaping filter is inversely operated on signal #11 to obtain M points included in signal #12, and then the channel parameter or the sensing parameter is obtained according to signal #12.

[0350] For the sensing service, after the first shaping filter is synchronized between the sending end and the receiving end, if the sending end sends the signal by the second mode, the receiving end processes the signal by the third mode. Specifically, when the receiving end receives the signal through the antenna, the signal is sequentially subjected to the removal of the cyclic prefix and K-point FFT to obtain M points included in signal #10. Then, the receiving end performs M-point subcarrier demapping on signal #10 to obtain M points included in signal #11. Then, the first shaping filter is inversely operated on signal #11 to obtain M points included in signal #12, and then the channel parameter or the sensing parameter is obtained according to signal #12.

[0351] In the technical solution, the first shaping filter for sensing service is indicated by signaling, so that the receiving end and the sending end are both clear about the first shaping filter for sensing service. Compared with directly using the shaping filter for communication service, using the shaping filter for sensing service can improve sensing performance (e.g., improve range resolution). In addition, the receiving end can also know the specific form of the first shaping filter used by the sending end, and process the received signal based on the first shaping filter, which can avoid signal-to-noise ratio (SNR) loss. Compared with not using the shaping filter, using the first shaping filter associated with the sensing service can reduce PAPR, thereby improving coverage performance. Therefore, using the first shaping filter for sensing service proposed in the present application can improve overall sensing performance. In addition, the first shaping filter can be dynamically indicated by the signaling indication.

[0352] The limit value of the power attenuation of the first shaping filter is less than the limit value of the power attenuation of the shaping filter for communication service, which can reduce the main lobe broadening of the auto-cumulative function, thereby ensuring better range resolution.

[0353] Optionally, in S1204, the sending end receives or sends the second information, and the receiving end sends or receives the second information.

[0354] It should be understood that the specific implementation of the sending end and the receiving end receiving or sending can refer to S1201, which will not be described here.

[0355] The second information includes first indication information, the first indication information is used to indicate a waveform or a waveform set, and the first shaping filter is associated with the waveform or the waveform set. The second information includes second indication information, the second indication information is used to indicate a sequence or a sequence set, and the first shaping filter is associated with the sequence or the sequence set. The second information includes third indication information, the third indication information is used to indicate that the first shaping filter is used for sensing service, or in other words, the third indication information is used to indicate that the first shaping filter is used for sequence transceiving or sensing reference signal transceiving.

[0356] Specifically, if the second information includes the first indication information, different waveforms or waveform sets can correspond to different first shaping filters, and the first information can indicate multiple first shaping filters. For example, different waveforms can include CP-OFDM, DFT-s-OFDM, or other new waveforms.

[0357] In this way, different waveforms can correspond to different first shaping filters, and corresponding shaping filters can be used for different sensing services, thereby improving the accuracy of sensing behavior and improving overall sensing performance.

[0358] If the second information comprises the second indication information, different sequences or sequence sets can correspond to different first shaping filters, and the first information can indicate a plurality of first shaping filters.

[0359] In this way, different sequences can correspond to different first shaping filters, and corresponding shaping filters can be used for different perception services, thereby improving the accuracy of perception behavior and improving the overall perception performance.

[0360] If the second information comprises the third indication information, the perception service and the communication service correspond to different shaping filters, and the first information can indicate a first shaping filter.

[0361] In this way, different service types can use corresponding shaping filters, thereby improving the perception performance and the communication performance respectively.

[0362] If the second information comprises the first indication information and the second indication information, for example, the first indication information indicates a waveform, and the second indication information indicates different sequences, under the same waveform, different sequences can correspond to different first shaping filters, and at this time, the first information indicates a plurality of first shaping filters. For another example, the first indication information indicates a waveform, and the second indication information indicates a sequence set, under the same waveform and sequence set, different PAPRs and self-blurring functions correspond to different first shaping filters, and at this time, the first information indicates a plurality of first shaping filters.

[0363] Optionally, the second information can further comprise fourth indication information, and the fourth indication information is used to indicate that the second shaping filter is used for the communication service.

[0364] Optionally, the third indication information can be used to indicate that the first shaping filter is used for the perception service and the communication service.

[0365] Optionally, in S1205, the sending end receives or sends third information, and the receiving end sends or receives the third information, the third information is used to determine the value of the M elements corresponding to the first shaping filter, or the third information is used to determine a first parameter, and the first parameter is used to determine the value of the M elements corresponding to the first shaping filter.

[0366] In case one, if the sending end is a terminal device and the receiving end is a network device, the receiving end receives the third information sent from the sending end. If the sending end is a network device and the receiving end is a terminal device, the sending end receives the third information sent from the receiving end. In case two, if the sending end is a terminal device #1 and the receiving end is a terminal device #2, the sending end sends the third information to the network device, and / or, the receiving end sends the third information to the network device, wherein the third information sent by the terminal device #1 and the terminal device #2 can be the same or different. In case three, if the sending end is a terminal device #1 and the receiving end is also a terminal device #1, the terminal device #1 sends the third information to the network device.

[0367] It should be understood that for case two and case three, S1205 is not directly transmitted between the sending end and the receiving end, and S1205 shown in FIG. 12 is drawn by taking case one as an example.

[0368] The third information includes at least one of the following: minimum distance resolution, minimum interference suppression capability, or expected peak-to-average power ratio (PAPR) corresponding to the first signal.

[0369] Specifically, if the third information includes the minimum distance resolution, the network device can determine the first shaping filter or the first parameter according to the minimum distance resolution requirement reported by the terminal device. More specifically, the main lobe of the self-ambiguity function is widened by the minimum distance resolution to determine the first shaping filter or the first parameter.

[0370] If the third information includes the minimum interference suppression capability, the network device can determine the first shaping filter or the first parameter according to the minimum interference suppression capability requirement reported by the terminal device. More specifically, the side lobe height of the self-ambiguity function is constrained by the minimum interference suppression capability to determine the first shaping filter or the first parameter.

[0371] If the third information includes the expected PAPR corresponding to the first signal, the network device can determine the first shaping filter or the first parameter according to the expected PAPR corresponding to the first signal reported by the terminal device.

[0372] In this way, the first shaping filter or the first parameter generated by the third information can be targeted for different sensing performances, so that it can be applied to sensing services with different requirements for different sensing performances, making the generated first waveform filter or first parameter more targeted.

[0373] Optionally, S1206, the sending end receives or sends the fourth information, and the receiving end sends or receives the fourth information, wherein the fourth information is used to indicate the first frequency domain resource.

[0374] It should be understood that the specific implementation mode of the sending end and the receiving end receiving or sending can refer to S1205, which will not be described here.

[0375] It should also be understood that S1201, S1204, S1205 and S1206 are executed before S1202, S1205 needs to be executed before S1201, and the execution order between the rest of S1204, S1201 and S1206 is not limited by the embodiments of the present application. That is, the third information needs to be transmitted before the first information, but the embodiments of the present application do not limit the execution order of the first information, the second information and the fourth information.

[0376] As a possible implementation, the first shaping filter indicated by the first information satisfies the first relationship, or the first shaping filter satisfies the first relationship and the second relationship. Wherein, the first relationship includes: the absolute value of the difference between the power corresponding to the first center frequency of the first spectrum and the power corresponding to the first frequency of the first spectrum is less than or equal to the first value. The first relationship and the second relationship include: when the absolute value of the difference between the first frequency and the first center frequency is less than or equal to the first threshold value, the absolute value of the difference between the power corresponding to the first center frequency of the first spectrum and the power corresponding to the first frequency of the first spectrum is less than or equal to the third value; when the absolute value of the difference between the first frequency and the first center frequency is greater than the first threshold value, the absolute value of the difference between the power corresponding to the first center frequency of the first spectrum and the power corresponding to the first frequency of the first spectrum is less than or equal to the first value.

[0377] Specifically, if the first information includes the values of the M elements corresponding to the first shaping filter, the first shaping filter satisfies the first relationship, or the first shaping filter satisfies the first relationship and the second relationship. If the first information includes the first parameter, the values of the M elements corresponding to the first shaping filter determined by the first parameter satisfy the first relationship, or satisfy the first relationship and the second relationship.

[0378] In other words, the first shaping filter indicated by the first information satisfies the radio frequency indicators of the first shaping filter for the perception service described in the related description of FIG. 8.

[0379] As a possible implementation, the values of the M elements corresponding to the first shaping filter indicated by the first information are generated according to the third information, and satisfy the first relationship, or satisfy the first relationship and the second relationship.

[0380] Specifically, if the first information includes the values of the M elements corresponding to the first shaping filter, the values of the M elements corresponding to the first shaping filter are determined according to the third information, and satisfy the first relationship, or satisfy the first relationship and the second relationship. If the first information includes the first parameter, the first parameter is determined according to the third information, and the values of the M elements corresponding to the first shaping filter determined by the first parameter satisfy the first relationship, or satisfy the first relationship and the second relationship.

[0381] In this way, for the perception service, not only the overall perception performance can be improved, but also the SNR loss can be avoided.

[0382] It should be understood that the size of the sequence number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0383] It should also be understood that the present application will present various aspects, embodiments or features around a system that can include a plurality of devices, components, modules, etc. It should be understood and appreciated that each system can include additional devices, components, modules, etc., and / or can not include all of the devices, components, modules, etc. discussed in connection with the drawings. In addition, combinations of these approaches can also be used.

[0384] It should also be understood that in some embodiments described above, devices in existing network architecture are mainly exemplarily described (for example, a sending end or a receiving end, etc.). It should be understood that the specific form of the device is not limited by the embodiments of the present application. For example, devices that can achieve the same function in the future are also applicable to the embodiments of the present application.

[0385] It can be understood that in each of the above method embodiments, the method and operation implemented by the device (for example, a sending end or a receiving end) can also be implemented by a component (for example, a chip or a circuit) of the device.

[0386] The above, in combination with FIG. 1 to FIG. 13, details the perception method provided by the embodiments of the present application. The above perception method is mainly introduced from the perspective of interaction between the sending end or the receiving end. It can be understood that the sending end or the receiving end includes the corresponding hardware structure and / or software module for executing each function in order to achieve the above functions.

[0387] Those skilled in the art should realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is realized in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0388] The following, in combination with FIG. 14 to FIG. 17, details the perception device provided by the embodiments of the present application. The description of the device embodiments corresponds to the description of the method embodiments, therefore, the contents not described in detail can be referred to the above method embodiments, and for brevity, some contents will not be described again.

[0389] The embodiments of the present application can divide the functional modules of the perception device according to the above method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated in one processing module. The integrated module can be realized in the form of hardware, software functional module, or a combination of software and hardware. The division of the modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, another division mode can be used. The following will be described by taking the division of each functional module according to each function as an example.

[0390] FIG. 14 is an exemplary block diagram of the perception device 1000 provided by the embodiments of the present application. As shown in FIG. 14, the perception device 1000 can include a chip system 1100, a memory 1200, a bus 1300, a power management module 1400, or a transceiver 1500, and the like.

[0391] The chip system 1100 can be an integrated circuit chip, and has a signal processing capability. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware or an instruction in the form of software in the chip system 1100.

[0392] By way of example, and without limitation, the chip system 1100 can include a circuit or chip responsible for signal processing (such as a modem chip, also known as a baseband chip, or a system on chip SoC chip or SIP chip containing a modem core).

[0393] Optionally, a memory (such as a cache) can also be arranged in the chip system 1100, for storing instructions and data. In some embodiments, the memory in the chip system 1100 is a cache memory. The memory can save instructions or data that have just been used or recycled by the chip system 1100. If the chip system 1100 needs to use the instructions or data again, it can be directly called from the memory. This avoids repeated access and reduces the waiting time of the chip system 1100, thereby improving the efficiency of the system.

[0394] In some embodiments, the chip system 1100 can include one or more interfaces. The interfaces can include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity moudle (SIM) interface, and / or a universal serial bus (USB) interface, etc.

[0395] The memory 1200 can include random access memory (RAM) and read-only memory (ROM). The memory 1200 can store computer-readable computer-executable code including instructions that, when executed, cause the processor to perform various functions described herein.

[0396] Optionally, the code can include instructions for implementing aspects of the present application, including instructions for supporting the generation or resolution of first information. The code can be stored in a non-transitory computer-readable medium such as system memory or other type of memory. In some cases, the code can not be directly executable by the chip system 1100 but can cause a computer (for example, when compiled and executed) to perform functions described herein. In some cases, the memory 1200 can include, among other things, a basic I / O system, which can control basic hardware or software operations, such as interaction with peripheral components or devices.

[0397] Illustratively, the chip system 1100 performs various functional applications and data processing of the sensing device 1000 by running instructions stored in the memory 1200. For example, when the sensing device 1000 transmits with other devices (e.g., terminal devices, or network devices, or core network devices), the chip system 1100 of the sensing device 1000 can invoke computer-executable program code stored in the memory 1200 to implement the data and / or signaling transmission method provided by the embodiments of the present application.

[0398] In addition, the memory 1200 can be integrated in the above-mentioned chip system 1100, or independent of the chip system 1100.

[0399] The bus 1300 can be a USB, used to support the mutual communication between the various parts in the sensing device 1000.

[0400] The power management module 1400 is used to receive charging input from a charger. Optionally, the power management module 1400 can supply power to the sensing device 1000 (e.g., the battery module of the sensing device 1000) while charging the sensing device 1000. As an example but not limitation, the power management module 1400 can also supply power to other devices in addition to the sensing device 1000.

[0401] The transceiver 1500 can communicate bi-directionally with one or more antennas, wired or wireless links, for example, the transceiver 1500 can represent a wireless transceiver and can communicate bi-directionally with another wireless transceiver. The transceiver 1500 can also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas. Where the transceiver 1500 includes a modem, the transceiver 1500 can include separate transmitters and receivers for the modem and other functions.

[0402] In some cases, a wireless device can include a single antenna. However, in some cases the device can have more than one antenna, like the antenna 1 and the antenna 2 shown in Figure 14, which can be capable of concurrently transmitting or receiving multiple wireless transmissions. Illustratively, the antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the sensing device 1000 can be used to cover a single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 can be multiplexed as a diversity antenna for a wireless local area network. In some other embodiments, the antennas can be used in combination with a tuning switch. The sensing device 1000 can transmit files to other devices through the wireless communication function.

[0403] In one design, the sensing device 1000 can correspond to the transmitting end in the above-mentioned method embodiments.

[0404] The device 1000 can implement the steps or processes corresponding to the steps performed by the transmitting end in the above-mentioned method embodiments, wherein the transceiver 1500 can be used to perform the transceiving-related operations of the transmitting end in the above-mentioned method embodiments; the chip system 1100 can be used to perform the processing-related operations of the transmitting end in the above-mentioned method embodiments.

[0405] In another design, the sensing device 1000 can correspond to the receiving end in the above-mentioned method embodiments.

[0406] The apparatus 1000 can implement steps or procedures corresponding to those performed by the receiving end in the above method embodiments, wherein the transceiver 1500 can be configured to perform transceiving-related operations of the receiving end in the above method embodiments; and the chip system 1100 can be configured to perform processing-related operations of the receiving end in the above method embodiments.

[0407] In this design, the perception apparatus 1000 can include modules such as a short-range communication module 1640, a sensor 1610, a display 1620, or a camera 1630, and the like as shown in FIG. 14.

[0408] The short-range communication module 1640 can include a wireless network (WI-FI, or WIFI), or a Bluetooth module, and the like supporting short-range communication.

[0409] The sensor 1610 can include a pressure sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, and the like.

[0410] The display 1620 is configured to display images, videos, and the like. The display includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flex light-emitting diode (FLED), a Miniled, a MicroLed, a Micro-oLed, a quantum dot light emitting diode (QLED), and the like. For example, in an embodiment of the present application, the display can be configured to display an interface required to be displayed by the perception apparatus 1000. Illustratively, the perception apparatus 1000 can realize the display function through a graphic processing unit (GPU), a display, and an application processor, and the like. The GPU is a microprocessor for image processing, connected to the display and the application processor. The GPU is configured to perform mathematical and geometric calculations for graphics rendering. The chip system 1100 can include one or more GPUs, which execute program instructions to generate or change display information.

[0411] The camera 1630 is configured to acquire images, videos, and the like.

[0412] It can be understood that the structure shown in FIG. 14 does not constitute a specific limitation on the sensing device 1000, and the specific structure of the sending end and / or the receiving end can refer to that shown in FIG. 14. In some embodiments, the sensing device 1000 can also include more or fewer components than those shown in FIG. 14, or combine certain components, or split certain components, or different component arrangements, etc. Alternatively, some components shown in FIG. 14 can be implemented in hardware, software, or a combination of software and hardware, and the sending end and / or the receiving end can be added or reduced components on the basis of the structure given in FIG. 14.

[0413] FIG. 15 is a schematic block diagram of a sensing device 2000 according to an embodiment of the present application. As shown in FIG. 15, the sensing device 2000 can include a baseband unit 2100, which can communicate with external devices through a cellular RF transceiver 2200 (for example, when the sensing device 2000 is a sending end, the baseband unit 2100 can communicate with a receiving end through the cellular RF transceiver 2200; also for example, when the sensing device 2000 is a receiving end, the baseband unit 2100 can communicate with a sending end through the cellular RF transceiver 2200).

[0414] The baseband unit 2100 can include a computer readable medium / memory. The baseband unit 2100 is responsible for general processing, including the execution of software stored on the computer readable medium / memory. The software, when executed by the baseband unit 2100, causes the baseband unit 2100 to perform the various functions described supra. The computer readable medium / memory can also be used for storing data that is manipulated by the baseband unit 2100 when executing software.

[0415] The baseband unit 2100 further includes a receiving unit 2010, a management unit 2020, and a sending unit 2030. The management unit 2020 includes one or more of the sub-units shown in FIG. 15 (e.g., encoding unit and / or decoding unit). The units within the management unit 2010 can be stored in the computer readable medium / memory and / or configured as hardware within the baseband unit 2100. Among them, the receiving unit 2010 and the sending unit 2030 can be referred to as a transceiving unit.

[0416] When the sensing device 2000 is used to implement the functions of the sending end in the above-mentioned method embodiments, the receiving unit 2010 is configured to perform the receiving steps of the sending end, the sending unit 2030 is configured to perform the sending steps of the sending end, and the management unit 2020 is configured to perform the processing steps of the sending end.

[0417] For example, when the device 2000 is used to perform the method in FIG. 8 or FIG. 12, the receiving unit 2010 can be configured to perform the steps of receiving information in the method; the management unit 2020 can be configured to perform the processing steps in the method; and the sending unit 2030 can be configured to perform the steps of sending information in the method.

[0418] When the perception device 2000 is configured to implement the functions of the receiving end in the above-mentioned method embodiments, the receiving unit 2010 is configured to perform the receiving steps of the receiving end, the sending unit 2030 is configured to perform the sending steps of the receiving end, and the management unit 2020 is configured to perform the processing steps of the receiving end.

[0419] For example, when the device 2000 is configured to implement the methods in FIG. 8 or FIG. 12, the receiving unit 2010 can be configured to perform the steps of receiving information in the methods; the management unit 2020 can be configured to perform the processing steps in the methods; and the sending unit 2030 can be configured to perform the steps of sending information in the methods.

[0420] For more detailed description of the receiving unit 2010, the management unit 2020, and the sending unit 2030, reference can be made to the related description in the above-mentioned method embodiments, which will not be repeated here.

[0421] FIG. 16 is a schematic block diagram of a chip system 3000 according to an embodiment of the present application. The chip system may, for example, include but is not limited to a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core.

[0422] As shown in FIG. 16, the chip system (or also referred to as a processing system) includes a processor 3100, a memory 3200, and an input / output interface 3300.

[0423] The processor 3100 can be a processing circuit in the chip system (including at least one processor, such as the processor 1 and the processor 2 shown in FIG. 8, etc.). The processor 3100 can be coupled to the memory 3200 to invoke instructions in the memory 3200, so that the chip system can implement the methods and functions of the embodiments of the present application. The input / output interface 3300 can be an input / output circuit in the chip system, which outputs the processed information of the chip system or inputs the data or signaling information to be processed into the chip system for processing.

[0424] As an option, the chip system is configured to implement the operations performed by the sending end or the receiving end in the above-mentioned method embodiments.

[0425] For example, the processor 3100 is configured to implement the processing-related operations performed by the sending end or the receiving end in the above-mentioned method embodiments, which can be referred to the description in the foregoing embodiments; and the input / output interface 3300 is configured to implement the sending and / or receiving-related operations performed by the sending end or the receiving end in the above-mentioned method embodiments, which can be referred to the description in the foregoing embodiments.

[0426] FIG. 17 is a schematic block diagram of another chip system 4000 according to an embodiment of the present application. As shown in FIG. 17, the chip system (or also referred to as a processing system) includes an input / output interface 4100 and a logic circuit 4200. The input / output interface 4100 can be an input / output circuit in the chip system, and is configured to output information processed by the chip system or input data or signaling information to be processed by the chip system. The logic circuit 4200 is configured to perform the sensing method described above. Details can be referred to the description of the foregoing embodiments.

[0427] As an option, the chip system is configured to implement the operations performed by the sending end or the receiving end in the above method embodiments.

[0428] For example, the logic circuit 4200 is configured to implement the processing-related operations performed by the sending end or the receiving end in the above method embodiments; and the input / output interface 4100 is configured to implement the sending and / or receiving-related operations performed by the sending end or the receiving end in the above method embodiments.

[0429] The embodiments of the present application further provide a computer readable storage medium, having stored thereon computer instructions for implementing the method performed by the apparatus in the above method embodiments.

[0430] For example, the computer program, when executed by a computer, enables the computer to implement the method performed by the sending end or the receiving end in the above method embodiments.

[0431] The embodiments of the present application further provide a computer program product, containing instructions, which, when executed by a computer, implement the method performed by the sending end or the receiving end in the above method embodiments.

[0432] The embodiments of the present application further provide a sensing system, including the sending end and / or the receiving end described above.

[0433] The explanations and beneficial effects of the related contents in any of the above apparatuses can refer to the corresponding method embodiments provided above, and will not be repeated here.

[0434] Those skilled in the art can understand that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solutions. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0435] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the system, device and unit described above can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0436] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. In actual implementation, another division mode can be used. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0437] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. can be located in one place or distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0438] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit.

[0439] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that make contributions to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage medium includes: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk, and various program code storage media.

[0440] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A perception method, comprising: The method comprises: determining a first signal, the first signal being determined according to a second signal and a first shaping filter, an absolute value of a difference between a power corresponding to a first center frequency of a first spectrum and a power corresponding to a first frequency of the first spectrum being less than or equal to a first value; wherein the first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of a first frequency domain resource, the first frequency domain resource comprising M first frequency domain units, the first frequency is a frequency corresponding to an i-th first frequency domain unit in the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i transmitting the first signal on the first frequency domain resource, the first signal being used for a sensing service.

2. The method of claim 1, wherein, The method further comprises: determining a third signal, the third signal being determined according to the second signal and a second shaping filter; an absolute value of a difference between a power corresponding to a second center frequency of a second spectrum and a power corresponding to a second frequency of the second spectrum being less than or equal to a second value; wherein the second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of a second frequency domain resource, the second frequency domain resource comprising N second frequency domain units, the second frequency is a frequency corresponding to a j-th second frequency domain unit in the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j transmitting the third signal on the second frequency domain resource, the third signal being used for a communication service.

3. The method of claim 2, wherein, The first value is less than the second value.

4. The method according to any one of claims 1 to 3, characterized in that, The first value is less than or equal to 3 dB.

5. The method of any one of claims 1 to 4, wherein: when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold value, the absolute value of the difference between the power corresponding to the first center frequency of the first spectrum and the power corresponding to the first frequency of the first spectrum is less than or equal to a third value; wherein the first threshold value is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

6. A perception method comprising: The method comprises: receiving a first signal on a first frequency domain resource, the first signal being used for a sensing service, the first signal being obtained according to a second signal and a first shaping filter, an absolute value of a difference between a power corresponding to a first center frequency of a first spectrum and a power corresponding to a first frequency of the first spectrum being less than or equal to a first value; wherein the first spectrum is a spectrum of the first shaping filter or a spectrum of the first signal, the first center frequency is a center frequency of the first frequency domain resource, the first frequency domain resource comprising M first frequency domain units, the first frequency is a frequency corresponding to an i-th first frequency domain unit in the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i obtaining a sensing parameter according to the first signal.

7. The method of claim 6, wherein, The method further comprises: receive a third signal on a second frequency domain resource, the third signal being used for a communication service, the third signal being obtained according to the second signal and a second shaping filter, an absolute value of a difference between a power of a second spectrum at a second center frequency and a power of the second spectrum at a second frequency being less than or equal to a second value; wherein the second spectrum is a spectrum of the second shaping filter or a spectrum of the third signal, the second center frequency is a center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is a frequency corresponding to a jth second frequency domain unit of the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j 8. The method of claim 7, wherein, The first value is less than the second value.

9. The method according to any one of claims 6 to 8, characterized in that, The first value is less than or equal to 3dB.

10. The method of any one of claims 6 to 9, wherein, when an absolute value of a difference between the first frequency and the first center frequency is less than or equal to a first threshold, an absolute value of a difference between a power of the first spectrum at the first center frequency and a power of the first spectrum at the first frequency is less than or equal to a third value; wherein the first threshold is less than a bandwidth size of the first frequency domain resource, and the third value is less than the first value.

11. A perception method comprising: The method comprises: receiving or sending first information, the first information being used to indicate values of M elements corresponding to a first shaping filter, M being a positive integer; sending a first signal on a first frequency domain resource, the first signal being obtained according to a second signal and the values of the M elements corresponding to the first shaping filter, the first signal being used for a sensing service, and the M representing a number of first frequency domain units included in the first frequency domain resource.

12. The method of claim 11, wherein, The first information includes a first parameter used to determine the values of the M elements corresponding to the first shaping filter.

13. The method of claim 12, wherein, The first parameter includes values of Q elements corresponding to a third shaping filter, the M elements corresponding to the first shaping filter being determined based on the Q elements corresponding to the third shaping filter, Q being a positive integer.

14. The method of claim 12, wherein, The first parameter includes at least one of the following: a filter type, a time domain pulse width corresponding to a filter, and a time domain pulse truncation parameter corresponding to a filter.

15. The method of claim 11, wherein, The first information includes the values of the M elements corresponding to the first shaping filter.

16. The method according to any one of claims 11 to 15, characterized in that, The method further comprises: receiving or sending second information; wherein the second information includes first indication information, the first indication information being used to indicate a waveform or a set of waveforms, the first shaping filter being associated with the waveform or the set of waveforms; and / or, the second information includes second indication information, the second indication information being used to indicate a sequence or a set of sequences, the first shaping filter being associated with the sequence or the set of sequences; and / or, the second information includes third indication information, the third indication information being used to indicate that the first shaping filter is used for a sensing service.

17. The method according to any one of claims 11 to 16, characterized in that, The method further comprises: transmit or receive third information, the third information being used for determining values of M elements corresponding to the first shaping filter, or the third information being used for determining a first parameter used for determining values of M elements corresponding to the first shaping filter; wherein the third information comprises at least one of: a minimum distance resolution, a minimum interference suppression capability, or an expected peak-to-average power ratio (PAPR) corresponding to the first signal.

18. The method according to any one of claims 11 to 17, characterized in that, The method further comprises: receiving or transmitting fourth information, the fourth information being used for indicating the first frequency domain resource.

19. A perception method comprising: The method comprises: transmit or receive first information, the first information being used for indicating values of M elements corresponding to a first shaping filter, M being a positive integer; receive a first signal on a first frequency domain resource, the first signal being obtained according to a second signal and the values of M elements corresponding to the first shaping filter, the first signal being used for a sensing service, M representing a number of first frequency domain units included in the first frequency domain resource.

20. The method of claim 19, wherein, The first information comprises a first parameter used for determining the values of M elements corresponding to the first shaping filter.

21. The method of claim 20, wherein, The first parameter comprises values of Q elements corresponding to a third shaping filter, the values of M elements corresponding to the first shaping filter being determined based on the values of Q elements corresponding to the third shaping filter, Q being a positive integer.

22. The method of claim 20, wherein, The first parameter comprises at least one of: a filter type, a time domain pulse width corresponding to a filter, or a time domain pulse truncation parameter corresponding to a filter.

23. The method of claim 19, wherein, The first information comprises the values of M elements corresponding to the first shaping filter.

24. The method according to any one of claims 19 to 23, characterized in that, The method further comprises: transmit or receive second information; wherein the second information comprises first indication information, the first indication information being used for indicating a waveform or a set of waveforms, the first shaping filter being associated with the waveform or the set of waveforms; and / or, The second information comprises second indication information, the second indication information being used for indicating a sequence or a set of sequences, the first shaping filter being associated with the sequence or the set of sequences; and / or, The second information comprises third indication information, the third indication information being used for indicating that the first shaping filter is used for a sensing service.

25. The method according to any one of claims 19 to 24, characterized in that, The method further comprises: transmit or receive third information, the third information being used for determining values of M elements corresponding to the first shaping filter, or the third information being used for determining a first parameter used for determining values of M elements corresponding to the first shaping filter; wherein the third information comprises at least one of: a minimum distance resolution, a minimum interference suppression capability, or an expected peak-to-average power ratio (PAPR) corresponding to the first signal.

26. The method according to any one of claims 19 to 25, characterized in that, The method further comprises: transmit or receive fourth information, the fourth information being used for indicating the first frequency domain resource.

27. A sensing device, comprising: comprise a module or unit for performing the method of any one of claims 6-10; or comprise a module or unit for performing the method of any one of claims 11-18; or comprise a module or unit for performing the method of any one of claims 19-26.

28. A sensing device, comprising: The processor is configured to cause the perception device to perform the method of any one of claims 1-5; or is configured to cause the perception device to perform the method of any one of claims 6-10; or is configured to cause the perception device to perform the method of any one of claims 11-18; or is configured to cause the perception device to perform the method of any one of claims 19-26.

29. A computer-readable storage medium, characterized in that, The computer program or instructions are stored on the computer-readable storage medium to cause the perception device to perform the method of any one of claims 1-5; or to cause the perception device to perform the method of any one of claims 6-10; or to cause the perception device to perform the method of any one of claims 11-18; or to cause the perception device to perform the method of any one of claims 19-26, when the computer program or instructions are run on the perception device.

30. A computer program product, characterised in that, The computer program product comprises computer program or instructions to cause the perception device to perform the method of any one of claims 1-5; or to cause the perception device to perform the method of any one of claims 6-10; or to cause the perception device to perform the method of any one of claims 11-18; or to cause the perception device to perform the method of any one of claims 19-26, when the computer program or instructions are run on the perception device.

Images