Perception method and device

Abstract

The invention provides a sensing method and device. The method is applied to a sensing scene, and comprises the following steps: defining a radio frequency index for frequency domain spectrum shaping of a sensing service, and / or indicating a value of a corresponding element for frequency domain spectrum shaping of the sensing service to a terminal device by a network device. Therefore, compared with the direct use of the radio frequency index for the frequency domain spectrum shaping of the communication service, the signal processing can be carried out for the frequency domain spectrum shaping of the sensing service, thereby improving the sensing performance.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a sensing method and apparatus. Background Technology

[0002] With the continuous development of communication and wireless sensing technologies, the integration of communication and wireless sensing technologies, namely integrated sensing and communication (ISAC), has become a popular research direction. In a wireless sensing system, the wireless signals transmitted by the communication device simultaneously possess sensing and communication capabilities. For example, the transmitting end can send sensing signals for sensing and measurement to the receiving end, enabling the sensing of the target, such as sensing the surrounding environment, the moving speed of objects, and distance.

[0003] Currently, radio frequency standards for frequency-domain spectral shaping (FDSS) for communication services, if directly applied to sensing services, may cause the main lobe of the self-ambiguity function corresponding to the signal of the sensing service to broaden, reduce the distance resolution, and thus affect its sensing performance.

[0004] Therefore, how to design frequency domain spectrum shaping for sensing services is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a sensing method and apparatus, which features frequency domain spectrum shaping for sensing services, thereby improving sensing performance.

[0006] Firstly, a sensing method is provided, which can be executed by a transmitting end. Unless otherwise specified, the term "transmitting end" in this application can refer to the transmitting end itself, or a component in the transmitting end (e.g., a communication module, processor, circuit, 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.), or a logic module or software that can implement all or part of the functions of the transmitting end.

[0007] The method includes: determining a first signal, which is determined based on a second signal and a first shaping filter, wherein the absolute value of the difference between the power of the first spectrum at a first center frequency and the power of the first spectrum at a first frequency is less than or equal to a first value. Wherein, 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 a first frequency domain resource, which includes M first frequency domain units; the first frequency is the frequency corresponding to the i-th first frequency domain unit among the M first frequency domain units, where M is a positive integer, 1 ≤ i ≤ M, or 0 ≤ i < M, and i is an integer. The first signal is transmitted on the first frequency domain resource, and the first signal is used for sensing services.

[0008] In the above technical solution, the radio frequency (RF) parameters of the first shaping filter associated with the sensing service are predefined by the protocol, or in other words, the RF parameters of the first shaping filter associated with the sensing service are predefined in the transmitting end. Compared to directly using the RF parameters of the shaping filter for communication services, using a shaping filter for sensing services for signal processing can improve sensing performance (e.g., improve distance resolution). Compared to not using a 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 services proposed in this application can improve overall sensing performance. Furthermore, by predefining the RF parameters of the first shaping filter associated with the sensing service through the protocol, signaling overhead at the transmitting end can be saved.

[0009] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: determining a third signal, which is determined based on a second signal and a second shaping filter, wherein the absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to a second value. Wherein, the second spectrum is the spectrum of the second shaping filter or the spectrum of the third signal, the second center frequency is the center frequency of a second frequency domain resource, the second frequency domain resource includes N second frequency domain units, and the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units, where N is a positive integer, 1 ≤ j ≤ N, or 0 ≤ j < N, and j is an integer. The third signal is transmitted on the second frequency domain resource, and the third signal is used for communication services.

[0010] In the above technical solution, more targeted RF parameters of the shaping filter are used for sensing and communication services, thereby improving the overall sensing and communication performance.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the first value is less than the second value.

[0012] In the above technical solution, when the first value is less than the second value, for sensing services, the power fluctuation or power attenuation corresponding to the first spectrum is smaller, which can reduce the main lobe broadening of the self-ambiguity function, thereby ensuring better distance resolution and improving sensing performance.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, the first value is less than or equal to 3dB.

[0014] In conjunction with the first aspect, in certain implementations of the first aspect, when the absolute value of the 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 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. Wherein, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0015] In the above technical solution, for a first frequency whose absolute value of the difference between itself and the first center frequency is less than or equal to a first threshold, a more stringent power attenuation constraint can be applied. Thus, the more frequency intervals are divided, the more precisely or rigorously the constraints on the first signal or the first shaping filter can be described according to specific needs, enabling the first signal or the first shaping filter under these constraints to better meet the desired performance.

[0016] In some implementations, the method may include: receiving or transmitting first information, the first information indicating the values ​​of M elements corresponding to a first shaping filter, where M is a positive integer; and transmitting a first signal on a first frequency domain resource, the first signal being obtained based on a second signal and the values ​​of the M elements corresponding to the first shaping filter, the first signal being used for service sensing.

[0017] In the above technical solution, the signaling indication enables both the receiving end and the transmitting end to clearly identify the first shaping filter used for sensing services. The receiving end can also know the specific form of the first shaping filter used by the transmitting end, which can avoid signal-to-noise ratio (SNR) loss.

[0018] In some implementations, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter.

[0019] In the above technical solution, a first parameter is used to determine the values ​​of the M elements corresponding to the first shaping filter through signaling interaction. The receiving end or the transmitting end determines the first shaping filter by the first parameter itself, which can reduce signaling overhead.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] In some implementations, the first information includes the values ​​of the M elements corresponding to the first shaping filter.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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 minimum distance resolution, minimum interference suppression capability, or the expected peak-to-average power ratio (PAPR) corresponding to the first signal, which can make the shaping filter more in line with performance requirements.

[0029] In some implementations, the method further includes receiving or sending fourth information, which is used to indicate the first frequency domain resource.

[0030] Secondly, a sensing method is provided. This method can be executed by a receiving end. Unless otherwise specified, "receiving end" in this application can refer to the receiving end itself, or a component in the receiving end (e.g., a communication module, processor, circuit, chip (such as a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip containing a modem core or a system-in-package (SIP) chip), or a chip system, etc.), or it can be a logic module or software that can implement all or part of the functions of the receiving end.

[0031] The method includes: receiving a first signal on a first frequency domain resource, the first signal being used for sensing services, the first signal being obtained based on a second signal and a first shaping filter, and the absolute value of the difference between the power of the first spectrum at a first center frequency and the power of the first spectrum at a first frequency being less than or equal to a first value. Wherein, 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 among the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i<M, where i is an integer. Sensing parameters are obtained based on the first signal.

[0032] In the above technical solution, the radio frequency (RF) parameters of the first shaping filter associated with the sensing service are predefined by the protocol, or in other words, the RF parameters of the first shaping filter associated with the sensing service are predefined in the receiver. Compared to directly using the RF parameters of the shaping filter for communication services, using a shaping filter for sensing services for signal processing can improve sensing performance (e.g., improve distance resolution). Compared to not using a 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 services proposed in this application can improve overall sensing performance. Furthermore, by predefining the RF parameters of the first shaping filter associated with the sensing service through the protocol, signaling overhead at the receiver can be saved.

[0033] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: receiving a third signal on a second frequency domain resource, the third signal being used for communication services, the third signal being obtained based on the second signal and a second shaping filter, and the absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency being less than or equal to a second value. Wherein, the second spectrum is the spectrum of the second shaping filter or the spectrum of the third signal, the second center frequency is the center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j<N, where j is an integer.

[0034] In conjunction with the second aspect, in some implementations of the second aspect, the first value is less than the second value.

[0035] In conjunction with the second aspect, in some implementations of the second aspect, the first value is less than or equal to 3dB.

[0036] In conjunction with the second aspect, in certain implementations of the second aspect, when the absolute value of the 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 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. Wherein, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0037] In some implementations, the method further includes: sending or receiving first information, the first information indicating the values ​​of M elements corresponding to the first shaping filter, where M is a positive integer; and receiving a first signal on a first frequency domain resource, the first signal being obtained based on a second signal and the values ​​of the M elements corresponding to the first shaping filter, the first signal being used for service sensing.

[0038] In some implementations, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter.

[0039] 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.

[0040] 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.

[0041] In some implementations, the first information includes the values ​​of the M elements corresponding to the first shaping filter.

[0042] In some implementations, the method further includes: sending or receiving 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.

[0043] In some implementations, the method further includes: receiving or transmitting 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.

[0044] In some implementations, the method further includes sending or receiving fourth information, which is used to indicate the first frequency domain resource.

[0045] It should be understood that the beneficial effects of the second aspect mentioned above can be referenced from the first aspect mentioned above and any possible implementation thereof, which will not be elaborated here.

[0046] Thirdly, a sensing method is provided, which can be executed by a transmitting end. Unless otherwise specified, the "transmitting end" in this application can refer to the transmitting end itself, or a component in the transmitting end (e.g., a communication module, processor, circuit, 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.), or a logic module or software that can implement all or part of the transmitting end's functions.

[0047] The method includes: receiving or transmitting first information, the first information indicating the values ​​of M elements corresponding to a first shaping filter, where M is a positive integer; transmitting a first signal on a first frequency domain resource, the first signal being obtained based on a second signal and the values ​​of the M elements corresponding to the first shaping filter, the first signal being used for service sensing, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0048] In the above technical solution, signaling indication enables both the receiving and transmitting ends to clearly define the first shaping filter used for sensing services. Compared to directly using the RF performance of shaping filters designed for communication services, signal processing using a shaping filter specifically for sensing services can improve sensing performance (e.g., improve distance resolution). Furthermore, the receiving end can also know the specific form of the first shaping filter used by the transmitting end and process the received signal based on the first shaping filter, avoiding signal-to-noise ratio (SNR) loss. Compared to not using a shaping filter, using a first shaping filter associated with sensing services can reduce PAPR, thereby improving coverage performance. Therefore, using the first shaping filter for sensing services proposed in this application can improve overall sensing performance. Moreover, the signaling indication method allows for dynamic indication of the first shaping filter, providing flexibility.

[0049] In conjunction with the third aspect, in some implementations of the third aspect, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter.

[0050] In the above technical solution, a first parameter is used to determine the values ​​of the M elements corresponding to the first shaping filter through signaling interaction. The receiving end or the transmitting end determines the first shaping filter by the first parameter itself, which can reduce signaling overhead.

[0051] In conjunction with the third aspect, in some implementations of the third aspect, 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.

[0052] 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.

[0053] In conjunction with the third aspect, in some implementations of the third aspect, 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.

[0054] In conjunction with the third aspect, in some implementations of the third aspect, the first information includes the values ​​of the M elements corresponding to the first shaping filter.

[0055] 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.

[0056] In conjunction with the third aspect, in some implementations of the third aspect, 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.

[0057] 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.

[0058] In conjunction with the third aspect, in some implementations of the third aspect, 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 distance resolution, minimum interference suppression capability, or the expected peak-to-average power ratio (PAPR) corresponding to the first signal.

[0059] 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 minimum distance resolution, minimum interference suppression capability, or the expected peak-to-average power ratio (PAPR) corresponding to the first signal, which can make the shaping filter more in line with performance requirements.

[0060] In conjunction with the third aspect, in some implementations of the third aspect, the method further includes: receiving or sending fourth information, the fourth information being used to indicate the first frequency domain resource.

[0061] 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. Here, 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; and the first frequency is the frequency corresponding to the i-th first frequency domain unit among the M first frequency domain units, where M is a positive integer, 1 ≤ i ≤ M, or 0 ≤ i < M, and i is an integer.

[0062] In the above technical solution, the first shaping filter of the first information indication is constrained by the radio frequency indicators of the sensing service, so that the values ​​of the M elements included in the first shaping filter of the indication are more in line with the sensing performance requirements.

[0063] In some implementations, a third signal is determined based on the second signal and the second shaping filter. The absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to a second value. Here, the second spectrum is either the spectrum of the second shaping filter or the spectrum of the third signal; the second center frequency is the center frequency of the second frequency domain resource, which includes N second frequency domain units; and the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units, where N is a positive integer, 1 ≤ j ≤ N, or 0 ≤ j < N, and j is an integer. The third signal is transmitted on the second frequency domain resource and is used for communication services.

[0064] In the above technical solution, more targeted RF parameters of the shaping filter are used for sensing and communication services, thereby improving the overall sensing and communication performance.

[0065] In some implementations, the first value is less than the second value.

[0066] In the above technical solution, when the first value is less than the second value, for sensing services, the power fluctuation or power attenuation corresponding to the first spectrum is smaller, which can reduce the main lobe broadening of the self-ambiguity function, thereby ensuring better distance resolution and improving sensing performance.

[0067] In some implementations, the first value is less than or equal to 3dB.

[0068] In some implementations, when the absolute value of the 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 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. Here, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0069] In the above technical solution, for the first frequency whose absolute value of the difference between the first center frequency and the first frequency is less than or equal to the first threshold, a more stringent power attenuation constraint can be applied. Thus, the more frequency intervals are divided, the more precisely or rigorously the constraints on the first signal or the first shaping filter can be described according to specific needs, enabling the first signal or the first shaping filter under these constraints to better meet the desired performance.

[0070] Fourthly, a sensing method is provided. This method can be executed by a receiving end. Unless otherwise specified, "receiving end" in this application can refer to the receiving end itself, or a component in the receiving end (e.g., a communication module, processor, circuit, chip (such as a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip containing a modem core or a system-in-package (SIP) chip), or a chip system, etc.), or it can be a logic module or software that can implement all or part of the functions of the receiving end.

[0071] The method includes: sending or receiving first information, the first information indicating the values ​​of M elements corresponding to a first shaping filter, where M is a positive integer; and receiving a first signal on a first frequency domain resource, the first signal being obtained based on a second signal and the values ​​of the M elements corresponding to the first shaping filter, the first signal being used for service sensing, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0072] In conjunction with the fourth aspect, in some implementations of the fourth aspect, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter.

[0073] In conjunction with the fourth aspect, in some implementations of the fourth aspect, 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.

[0074] In conjunction with the fourth aspect, in some implementations of the fourth aspect, 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.

[0075] In conjunction 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.

[0076] In conjunction 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, 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.

[0077] In conjunction with the fourth aspect, in some implementations of the fourth aspect, the method further includes: receiving or transmitting 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.

[0078] In conjunction with the fourth aspect, in some implementations of the fourth aspect, the method further includes: sending or receiving fourth information, which is used to indicate the first frequency domain resource.

[0079] 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. Here, 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; and the first frequency is the frequency corresponding to the i-th first frequency domain unit among the M first frequency domain units, where M is a positive integer, 1 ≤ i ≤ M, or 0 ≤ i < M, and i is an integer.

[0080] In the above technical solution, the first shaping filter of the first information indication is constrained by the radio frequency indicators of the sensing service, so that the values ​​of the M elements included in the first shaping filter of the indication are more in line with the sensing performance requirements.

[0081] In some implementations, a third signal is transmitted on the second frequency domain resource. This third signal is used for communication services. The third signal is determined based on the second signal and the second shaping filter. The absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to a second value. Here, the second spectrum is either the spectrum of the second shaping filter or the spectrum of the third signal; the second center frequency is the center frequency of the second frequency domain resource, which comprises N second frequency domain units; and the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units, where N is a positive integer, 1 ≤ j ≤ N, or 0 ≤ j < N, and j is an integer.

[0082] In some implementations, the first value is less than the second value.

[0083] In some implementations, the first value is less than or equal to 3dB.

[0084] In some implementations, when the absolute value of the 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 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. Here, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0085] It should be understood that the beneficial effects of the fourth aspect mentioned above can be referenced from the third aspect mentioned above and any possible implementation method therein, which will not be elaborated here.

[0086] Fifthly, a sensing device is provided, which has the functions of the first aspect above. For example, the sensing device includes modules, units or means corresponding to the operations involved in the first aspect above. The modules, units or means can be implemented by software, or by hardware, or by a combination of software and hardware.

[0087] For example, the sensing device may be a transmitter, or a module or unit (e.g., a chip, a chip system, or a circuit) in the transmitter that corresponds to each of the methods, operations, steps, or actions described in the first aspect above, or a device that can be matched with the transmitter.

[0088] In one possible implementation, the sensing device includes a transceiver unit (or communication module) and a processing unit.

[0089] For example, the processing unit is configured to determine a first signal, which is determined based on a second signal and a first shaping filter, wherein the absolute value of the difference between the power of the first spectrum at a first center frequency and the power of the first spectrum at a first frequency is less than or equal to a first value. Here, 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 a first frequency domain resource, the first frequency domain resource includes M first frequency domain units, and the first frequency is the frequency corresponding to the i-th first frequency domain unit among the M first frequency domain units, where M is a positive integer, 1 ≤ i ≤ M, or 0 ≤ i < M, and i is an integer. The transceiver unit is configured to transmit the first signal on the first frequency domain resource, the first signal being used for sensing services.

[0090] In conjunction with the fifth aspect, in some implementations of the fifth aspect, the processing unit is further configured to determine a third signal, which is determined based on the second signal and the second shaping filter, wherein the absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to a second value. Here, the second spectrum is the spectrum of the second shaping filter or the spectrum of the third signal, the second center frequency is the center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, and the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units, where N is a positive integer, 1 ≤ j ≤ N, or 0 ≤ j < N, and j is an integer. The transceiver unit is further configured to transmit the third signal on the second frequency domain resource, the third signal being used for communication services.

[0091] In conjunction with the fifth aspect, in some implementations of the fifth aspect, the first value is less than the second value.

[0092] In conjunction with the fifth aspect, in some implementations of the fifth aspect, the first value is less than or equal to 3dB.

[0093] In conjunction with the fifth aspect, in certain implementations of the fifth aspect, when the absolute value of the 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 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. Wherein, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0094] In some implementations, the transceiver unit is further configured to receive or transmit first information, which indicates the values ​​of M elements corresponding to the first shaping filter, where M is a positive integer. It also transmits a first signal on a first frequency domain resource, the first signal being obtained based on the second signal and the first shaping filter, and this first signal is used for service sensing.

[0095] In some implementations, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0096] 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.

[0097] 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.

[0098] In some implementations, the first information includes the values ​​of M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0099] In some implementations, the transceiver unit is further configured to receive or transmit second information. This 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.

[0100] In some implementations, the transceiver unit is further configured to send or receive third information, which is used to determine the values ​​of the M elements corresponding to the first shaping filter, or the third information is used to determine a first parameter, which is 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.

[0101] In some implementations, the transceiver unit is also used to receive or send fourth information, which is used to indicate the first frequency domain resources.

[0102] It should be understood that the beneficial effects of the fifth aspect mentioned above can be referenced from the first aspect mentioned above and any possible implementation method therein, and will not be elaborated here.

[0103] In a sixth aspect, a sensing device is provided, which has the functions of the first aspect described above. For example, the sensing device includes modules, units, or means corresponding to the operations involved in the first aspect. The modules, units, or means can be implemented by software, hardware, or a combination of software and hardware.

[0104] For example, the sensing device may be a receiving end, or a module or unit (e.g., a chip, a chip system, or a circuit) in the receiving end that corresponds to each of the methods, operations, steps, or actions described in the first aspect above, or a device that can be matched with the receiving end.

[0105] In one possible implementation, the sensing device includes a transceiver unit (or communication module) and a processing unit.

[0106] For example, the transceiver unit is configured to receive a first signal on a first frequency domain resource. The first signal is obtained based on a second signal and a first shaping filter. 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. Here, 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 among the M first frequency domain units; M is a positive integer, 1 ≤ i ≤ M, or 0 ≤ i < M, where i is an integer. Optionally, the processing unit is configured to acquire sensing parameters based on the first signal.

[0107] In conjunction with the sixth aspect, in some implementations of the sixth aspect, the transceiver unit is further configured to receive a third signal on a second frequency domain resource. The third signal is used for communication services and is obtained based on the second signal and the second shaping filter. The absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to a second value. Here, the second spectrum is the spectrum of the second shaping filter or the spectrum of the third signal; the second center frequency is the center frequency of the second frequency domain resource; the second frequency domain resource includes N second frequency domain units; the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units; N is a positive integer, 1 ≤ j ≤ N, or 0 ≤ j < N, where j is an integer.

[0108] In conjunction with the sixth aspect, in some implementations of the sixth aspect, the first value is less than the second value.

[0109] In conjunction with the sixth aspect, in some implementations of the sixth aspect, the first value is less than or equal to 3dB.

[0110] In conjunction with the sixth aspect, in certain implementations of the sixth aspect, when the absolute value of the 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 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. Wherein, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0111] In some implementations, the transceiver unit is further configured to send or receive first information, which indicates the values ​​of M elements corresponding to the first shaping filter, where M is a positive integer. It also receives a first signal on a first frequency domain resource, the first signal being obtained based on a second signal and the first shaping filter, and the first signal being used for service sensing.

[0112] In some implementations, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0113] 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.

[0114] 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.

[0115] In some implementations, the first information includes the values ​​of M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0116] In some implementations, the transceiver unit is further configured to send or receive second information. This 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.

[0117] In some implementations, the transceiver unit is further configured to receive or transmit third information, which is used to determine the values ​​of the M elements corresponding to the first shaping filter, or the third information is used to determine a first parameter, which is 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.

[0118] In some implementations, the transceiver unit is also used to send or receive fourth information, which is used to indicate the first frequency domain resources.

[0119] It should be understood that the beneficial effects of the sixth aspect mentioned above can be referenced from the second aspect mentioned above and any of its possible implementation methods, which will not be elaborated here.

[0120] In a seventh aspect, a sensing device is provided, which has the functions of the first aspect above. For example, the sensing device includes modules, units or means corresponding to the operations involved in the first aspect above. The modules, units or means can be implemented by software, or by hardware, or by a combination of software and hardware.

[0121] For example, the sensing device may be a transmitter, or a module or unit (e.g., a chip, a chip system, or a circuit) in the transmitter that corresponds to each of the methods, operations, steps, or actions described in the first aspect above, or a device that can be matched with the transmitter.

[0122] In one possible implementation, the sensing device includes a transceiver unit (or communication module).

[0123] For example, the transceiver unit is configured to receive or transmit first information, which indicates the values ​​of M elements corresponding to the first shaping filter, where M is a positive integer. The transceiver unit is also configured to transmit a first signal on a first frequency domain resource, the first signal being obtained based on a second signal and the first shaping filter, and the first signal being used for service sensing.

[0124] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0125] In conjunction with the seventh aspect, in some implementations of the seventh aspect, 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.

[0126] In conjunction with the seventh aspect, in some implementations of the seventh aspect, 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.

[0127] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the first information includes the values ​​of M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0128] In conjunction with aspect seven, in some implementations of aspect seven, the transceiver unit is further configured to receive or transmit 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.

[0129] In conjunction with aspect seven, in some implementations of aspect seven, the transceiver unit is further configured to transmit or receive third information, which is used to determine the values ​​of the M elements corresponding to the first shaping filter, or the third information is used to determine a first parameter, which is 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.

[0130] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the transceiver unit is also used to receive or send fourth information, which is used to indicate the first frequency domain resources.

[0131] 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. Here, 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; and the first frequency is the frequency corresponding to the i-th first frequency domain unit among the M first frequency domain units, where M is a positive integer, 1 ≤ i ≤ M, or 0 ≤ i < M, and i is an integer.

[0132] In some implementations, the device further includes a processing unit for determining a third signal, which is determined based on the second signal and the second shaping filter. The absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to a second value. Here, the second spectrum is either the spectrum of the second shaping filter or the spectrum of the third signal; the second center frequency is the center frequency of the second frequency domain resource, which includes N second frequency domain units; and the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units, where N is a positive integer, 1 ≤ j ≤ N, or 0 ≤ j < N, and j is an integer. The transceiver unit is used to transmit the third signal on the second frequency domain resource, and the third signal is used for communication services.

[0133] In some implementations, the first value is less than the second value.

[0134] In some implementations, the first value is less than or equal to 3dB.

[0135] In some implementations, when the absolute value of the 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 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. Here, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0136] It should be understood that the beneficial effects of the seventh aspect mentioned above can be referenced from the third aspect mentioned above and any possible implementation method therein, which will not be elaborated here.

[0137] Eighthly, a sensing device is provided, which has the functions of the first aspect above. For example, the sensing device includes modules, units or means corresponding to the operations involved in the first aspect above. The modules, units or means can be implemented by software, or by hardware, or by a combination of software and hardware.

[0138] For example, the sensing device may be a receiving end, or a module or unit (e.g., a chip, a chip system, or a circuit) in the receiving end that corresponds to each of the methods, operations, steps, or actions described in the first aspect above, or a device that can be matched with the receiving end.

[0139] In one possible implementation, the sensing device includes a transceiver unit (or communication module).

[0140] For example, the transceiver unit is configured to use the first information to indicate the values ​​of M elements corresponding to the first shaping filter, where M is a positive integer. The transceiver unit is also configured to receive a first signal on a first frequency domain resource, the first signal being obtained based on the second signal and the first shaping filter, and the first signal being used for service sensing.

[0141] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0142] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the first parameter includes the values ​​of the Q elements corresponding to the third shaping filter, where 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.

[0143] In conjunction with the eighth aspect, in some implementations of the eighth aspect, 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.

[0144] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the first information includes the values ​​of M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0145] In conjunction with aspect eight, in some implementations of aspect eight, the transceiver unit is further configured to send or receive 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.

[0146] In conjunction with aspect eight, in some implementations of aspect eight, the transceiver unit is further configured to receive or transmit 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.

[0147] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the transceiver unit is also used to send or receive fourth information, which is used to indicate the first frequency domain resources.

[0148] 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. Here, 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; and the first frequency is the frequency corresponding to the i-th first frequency domain unit among the M first frequency domain units, where M is a positive integer, 1 ≤ i ≤ M, or 0 ≤ i < M, and i is an integer.

[0149] In some implementations, the transceiver unit is further configured to transmit a third signal on the second frequency domain resource, the third signal being used for communication services. The third signal is determined based on the second signal and the second shaping filter, wherein the absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to a second value. Here, the second spectrum is either the spectrum of the second shaping filter or the spectrum of the third signal; the second center frequency is the center frequency of the second frequency domain resource, which comprises N second frequency domain units; and the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units, where N is a positive integer, 1 ≤ j ≤ N, or 0 ≤ j < N, and j is an integer.

[0150] In some implementations, the first value is less than the second value.

[0151] In some implementations, the first value is less than or equal to 3dB.

[0152] In some implementations, when the absolute value of the 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 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. Here, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0153] It should be understood that the beneficial effects of the eighth aspect mentioned above can be referenced from the fourth aspect mentioned above and any possible implementation method therein, which will not be elaborated here.

[0154] Ninthly, a sensing device is provided. The sensing device can be either the transmitting end or the receiving end described above. The sensing device includes a transceiver, a processor, and a memory. The processor controls the transceiver to transmit and receive signals, the memory stores a computer program, and the processor retrieves and runs the computer program from the memory, causing the sensing device to perform the method in any of the possible implementations of the first to fourth aspects described above.

[0155] Optionally, there may be one or more processors and one or more memories.

[0156] Alternatively, the memory can be integrated with the processor, or the memory can be set up separately from the processor.

[0157] Optionally, the sensing device may also include a transmitter and a receiver.

[0158] A tenth aspect provides a sensing device comprising a memory and one or more processors. The memory stores part or all of a computer program or instructions necessary for implementing the functions described in any of the first to fourth aspects. The one or more processors are executable to carry out the computer program or instructions, such that, when executed, the sensing device implements the methods in any possible design or implementation of the first to fourth aspects.

[0159] In one possible design, the sensing device may also include an interface circuit, through which the processor communicates with other devices or components.

[0160] In one possible design, the sensing device may also include the memory.

[0161] The aforementioned sensing device may be a transmitter, or a communication module in the transmitter, or a chip in the transmitter responsible for communication functions such as a modem chip (also known as a baseband chip), or a system-on-chip (SoC) chip or system-in-a-package (SIP) chip containing a modem module.

[0162] The aforementioned sensing device may be a receiving end, or a communication module in the receiving end, or a circuit or chip in the receiving end responsible for communication functions, or a functional module in a network device capable of calling and executing programs.

[0163] Eleventhly, a sensing system is provided. The communication system includes a transmitter and / or a receiver, wherein the transmitter is configured to perform the method in any possible implementation of the first or third aspect described above, and the receiver is configured to perform the method in any possible implementation of the second or fourth aspect described above.

[0164] For example, the transmitting end can be the transmitting end itself, or a chip or circuit in the transmitting end, or a functional module in the transmitting end that can call and execute a program; 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 distributed unit (DU) in the receiving end, or a functional module in the receiving end that can call and execute a program.

[0165] In a twelfth aspect, a computer-readable storage medium is provided. This computer-readable storage medium stores computer program code or instructions to cause the method in any possible implementation of the first or second aspect to be executed, for example, when a computer reads and executes the computer program code or instructions, causing the method in any possible implementation of the first or second aspect to be implemented.

[0166] In a thirteenth aspect, a computer program product is provided. The computer program product includes computer program code or instructions that cause the methods in any of the possible implementations of the first to fourth aspects to be implemented. For example, when a computer reads and executes the computer program product, the methods in any of the possible implementations of the first to fourth aspects are implemented.

[0167] In a fourteenth aspect, a computer program is provided. When the computer program is run, it causes the methods in any of the possible implementations of the first to fourth aspects to be implemented.

[0168] It should be understood that the beneficial effects of aspects nine through fourteen above can be achieved by referring to any of the possible implementation methods of aspects one through four above, which will not be elaborated here. Attached Figure Description

[0169] Figure 1 This is a schematic diagram of a wireless communication system applicable to embodiments of this application;

[0170] Figure 2 This is a schematic diagram of an ORAN system applicable to embodiments of this application;

[0171] Figure 3 This is a schematic diagram of an access network device applicable to embodiments of this application;

[0172] Figure 4 This is a schematic diagram of the processing flow of CP-OFDM technology provided in an embodiment of this application;

[0173] Figure 5 This is a schematic diagram of the processing flow of DFT-s-OFDM technology;

[0174] Figure 6 This is a schematic diagram of the radio frequency indicators of FDSS for communication services provided in an embodiment of this application;

[0175] Figure 7 This is a schematic diagram of a self-fuzzy function of radio frequency indicators using communication services, as shown in an embodiment of this application;

[0176] Figure 8 This is a flowchart illustrating a sensing method provided in an embodiment of this application;

[0177] Figure 9 This is a schematic diagram of a signal processing flow provided in an embodiment of this application;

[0178] Figure 10 This is a schematic diagram of another signal processing flow provided in an embodiment of this application;

[0179] Figure 11 This is a schematic diagram of an FDSS that satisfies the radio frequency indicators of sensing services and its corresponding self-fuzzy function, as shown in an embodiment of this application.

[0180] Figure 12 This is a flowchart illustrating another sensing method provided in an embodiment of this application;

[0181] Figure 13 This is another schematic diagram of a signal processing flow provided in the embodiments of this application;

[0182] Figure 14 This is an exemplary block diagram of the sensing device 1000 provided in an embodiment of this application;

[0183] Figure 15 This is a schematic block diagram of the sensing device 2000 provided in the embodiments of this application;

[0184] Figure 16 This is a schematic block diagram of a chip system 3000 provided in an embodiment of this application;

[0185] Figure 17 This is a schematic block diagram of another chip system 4000 provided in the embodiments of this application. Detailed Implementation

[0186] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0187] To facilitate understanding of the embodiments of this application, the following points are made:

[0188] (1) In this application, unless otherwise specified or logically conflicting, the terms and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0189] (2) In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c can mean: 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.

[0190] (3) In this application, the terms "first," "second," and various numerical designations (e.g., #1, #2, etc.) indicate distinctions made for ease of description and are not intended to limit the scope of the embodiments of this application. For example, they may be used to distinguish different signals, rather than to describe a specific order or sequence. Such descriptions may be interchanged where appropriate to describe solutions other than those in the embodiments of this application.

[0191] (4) In this application, the descriptions such as “when…”, “under the circumstances of…” and “if” all refer to the device making corresponding processing under certain objective circumstances. They are not time limits, nor do they require the device to make a judgment action when it is implemented, nor do they mean that there are other limitations.

[0192] (5) In this application, “instruction” or “for instruction” can include both direct instruction and indirect instruction. When describing an instruction as being used to instruct A, it can include whether the instruction directly instructs A or indirectly instructs A, but does not necessarily mean that the instruction carries A.

[0193] The indication methods involved in the embodiments of this application should be understood to cover various methods that enable the party to be indicated to obtain the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately. Moreover, the sending period and / or sending time of these sub-information can be the same or different. This application does not limit the sending method, for example.

[0194] The "instruction information" in the embodiments of this application can be an explicit instruction, that is, a direct instruction through signaling, or an instruction obtained by combining other rules or parameters with the parameters indicated by the signaling, or by deduction. It can also be an implicit instruction, that is, an instruction obtained based on rules or relationships, or based on other parameters, or by deduction. This application does not specifically limit it in this regard.

[0195] (6) In this application, "protocol" can refer to a standard protocol in the field of communications, such as the 5G protocol, the NR protocol, and related protocols applied in future communication systems. This application does not limit this term. "Predefined" can include predefined terms, such as protocol definitions. "Preconfiguration" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device. This application does not limit the implementation method.

[0196] (7) In this application, "communication" can also be described as "communication", "information transmission", "data processing", etc. "Transmission" includes "sending" and "receiving". "Transmission" can be described as "output". In this application, "message", "information", "signal" or "information element (IE)" can be used interchangeably. There are no restrictions on the name of the message or information, as long as it can achieve the corresponding function.

[0197] "Sending information to XX (device)" can be understood as the destination of the information being that device. This can include sending information directly or indirectly to that device. "Receiving information from XX (device), or receiving information from XX (device)" can be understood as the source of the information being that device. This can include receiving information directly or indirectly from that device. Information may undergo necessary processing between the source and destination, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood in a similar way, and will not be repeated here. Furthermore, "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 occur between devices, for example, between network devices and terminal devices via an air interface. "Sending" or "receiving" can also occur within a device, for example, between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0198] (8) In this application, the words “exemplary,” “for example,” etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as an “example” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word “example” is intended to present the concept in a concrete manner. In the embodiments of this application, “of,” “corresponding, relevant,” “corresponding,” and “associate” may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinctions are emphasized.

[0199] (9) In this application, when comparing A and B, the description "when A is greater than or equal to B, execute method A; when A is less than or equal to B, execute method B" can be implemented as "when A is greater than or equal to B, execute method A; or when A is less than B, execute method B" or "when A is greater than B, execute method A; or when A is less than or equal to B, execute method B". This application does not limit this. For ease of description, the implementation methods provided in this application are all illustrated using "when A is greater than or equal to B, execute method A; or when A is less than B, execute method B" as an example.

[0200] (10) In this application, the configuration can be signaling configuration or can be described as configuration signaling. For example, signaling configuration includes configuration using signaling sent by the base station, which can be radio resource control (RRC) messages, downlink control information (DCI) messages, or system information blocks (SIBs). Optionally, the signaling configuration can also be configured to the terminal device by pre-configured signaling, or configured to the terminal device through pre-configuration. Here, pre-configuration means defining or configuring the values ​​of corresponding parameters in advance in the form of a protocol, and storing them in the terminal device when communicating with the terminal device. The pre-configured messages can be modified or updated when the terminal device is connected to the network.

[0201] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0202] The technical solutions provided in this application can be applied to various communication systems, such as 5th generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, and LTE time division duplex (TDD) systems. The technical solutions provided in this application can also be applied to future communication networks. Furthermore, the technical solutions provided in this application can 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 this application can also be applied to non-terrestrial network (NTN) systems such as inter-satellite communication and satellite communication.

[0203] As an example, a satellite communication system includes a satellite base station and terminal equipment. The satellite base station provides communication services to the terminal equipment. Satellite base stations can also communicate with each other. A satellite can act as a base station or as a terminal device. Here, "satellite" can refer to drones, hot air balloons, low-Earth orbit satellites, medium-Earth orbit satellites, high-Earth orbit satellites, etc. "Satellite" can also refer to non-terrestrial base stations or non-terrestrial equipment.

[0204] 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.

[0205] In a communication system, a device can send signals to or receive signals from another device. These signals can include information, signaling, or data. The device can also be replaced by an entity, network entity, communication equipment, communication module, node, communication node, etc. This application uses a device as an example for description.

[0206] The terminal device in this application embodiment can be a device or module that accesses the aforementioned communication system and has corresponding communication functions. The terminal device can include various devices with wireless communication capabilities, which can be used to connect people, objects, machines, etc. The terminal device can be widely applied in various scenarios, such as: cellular communication, D2D, V2X, peer-to-peer (P2P), M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, 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. Terminal equipment can be user equipment (UE), terminal, fixed equipment, mobile station equipment or mobile equipment, subscriber unit, handheld device, vehicle-mounted equipment, wearable device, cellular phone, smartphone, session initiation protocol (SIP) phone, wireless data card, personal digital assistant (PDA), computer, tablet computer, laptop computer, wireless modem, handset, laptop computer, computer with wireless transceiver capability, smart book, vehicle, satellite, global positioning system (GPS) device, target tracking device, aircraft (e.g., drone, helicopter, multiple helicopters, four helicopters, or airplanes), ship, remote control device, smart home device, industrial equipment, transportation vehicle with wireless communication capability, communication module, or roadside unit with terminal function, all conforming to the 3GPP standard. The device may be a wireless communication unit (RSU), or a device built into the aforementioned device (e.g., a communication module, modem, or chip in the aforementioned device), or other processing devices connected to the wireless modem.

[0207] It should be understood that in certain scenarios, a UE can also be used as a base station. For example, a UE can act as a scheduling entity, providing sidelink signaling between UEs in scenarios such as V2X, D2D, or P2P.

[0208] In this embodiment, the device for implementing the functions of a terminal device, i.e., the terminal device, can be the terminal device itself, or it can be any device capable of supporting the terminal device in implementing the functions, such as a chip system, chip, circuit, or communication module (i.e., a communication module that performs communication functions). This device can be installed in the terminal device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Furthermore, the device can also be configured with program instructions for performing corresponding communication functions.

[0209] The network device in this application embodiment can be a device or module with corresponding communication functions. The network device can be a device used to communicate with terminal devices; it can also be called an access network device or a wireless access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitter, master station, auxiliary 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. A base station can be a macro base station, micro base station, relay node, donor node, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, a device that performs base station functions in D2D, V2X, and M2M communications, or a device that performs base station functions in future communication systems. A base station can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0210] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0211] In some deployments, the network devices mentioned in the embodiments of this application may be devices including CU, or DU, or devices including CU and DU, or devices with control plane CU nodes (central unit-control plane (CU-CP)) and user plane CU nodes (central unit-user plane (CU-UP)) and DU nodes.

[0212] In some deployments, multiple RAN nodes collaborate to assist terminal devices in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CU-CPs, CU-UPs, or radio units (RUs). CUs and DUs can be configured separately or included in the same network element, such as a BBU. RUs can be included in radio equipment or radio units, such as RRUs, AAUs, or RRHs.

[0213] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, a radio access network can also be an open radio access network (O-RAN or ORAN) architecture. In an O-RAN system, CU can also be called an open CU (openCU, O-CU), DU can also be called an open DU (open DU, O-DU), CU-CP can also be called an open CU-CP (O-CU-CP), CU-UP can also be called an open CU-UP (O-CU-UP), and RU can also be called an open RU (openRU, O-RU). Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0214] In this embodiment, the device for implementing the functions of a network device can be a network device itself, or a device capable of supporting the network device in implementing those functions, such as a chip system, chip, circuit, or communication module (i.e., a communication module that performs communication functions). This device can be installed within the network device. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Furthermore, the device can be configured with program instructions for performing corresponding communication functions. This embodiment only uses a network device as an example to illustrate the device for implementing the functions of a network device, and does not limit the solution of this embodiment.

[0215] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0216] Figure 1 This is a schematic diagram of a wireless communication system applicable to embodiments of this application. For example... Figure 1 As shown, the wireless communication system includes a wireless access network 100. The wireless access network 100 can be a future or later version of the wireless access network, or a traditional (e.g., 5G, 4G, 3G, or 2G) wireless access network. One or more terminal devices (120a-120j, collectively referred to as 120) can be interconnected or connected to one or more network devices (110a, 110b, collectively referred to as 110) within the wireless access network 100. Network elements in the wireless communication system are connected via interfaces (e.g., NG, Xn) or over-the-air interfaces.

[0217] When network devices and terminal devices communicate, the network device can manage one or more cells, and a cell can include at least one terminal device. A cell can be understood as an area within the wireless signal coverage range of the network device.

[0218] Figure 1 This is just an illustration; the wireless communication system may also include other devices, such as core network equipment, wireless relay equipment, and / or wireless backhaul equipment. Figure 1 It is not shown in the middle.

[0219] Figure 2 This is a schematic diagram of an ORAN system applicable to embodiments of this application. The ORAN system includes a core network, access network equipment, and a UE. As an example, the ORAN system may also include... Figure 1 Other components besides those shown are not specifically limited in this application.

[0220] Access network equipment can communicate with the core network (CN) via a backhaul link. Access network equipment can also communicate with the UE via an air interface. Specifically, the BBU in the access network equipment communicates with the core network via a backhaul link. The RU in the access network equipment communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link; the BBU and RU may or may not be co-located. A BBU includes at least one CU and at least one DU, and the CU and DU can communicate via at least one midhaul link.

[0221] Figure 3 This is a schematic diagram of an access network device applicable to embodiments of this application.

[0222] Optionally, the access network equipment includes a CU. The CU is a logical node that carries the radio resource control (RRC), service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network equipment. The CU can connect to network nodes such as the core network through interfaces, such as the E2 interface. The CU may have some core network functions. The CU (e.g., the PDCP layer and / or higher) connects to the DU (e.g., the radio link control (RLC) layer and lower layers of the DU) through interfaces, such as the 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, defining the signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0223] As an example, a CU includes CU-CP and CU-UP. CU-CP is a logical node carrying the control plane (PDCP-C) layer, which carries the RRC layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the user plane (PDCP-U) layer, which carries the SDAP layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the user plane function (UPF) in a 5G system, are responsible for data forwarding and receiving in terminal devices. The above CU and DU configurations are merely examples. In practical applications, the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or to have only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements. For example, based on latency, functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0224] Optionally, the access network equipment includes a DU. For example... Figure 3 As shown, a DU is a logical node that carries the RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0225] Optionally, the access network equipment includes a RU. For example... Figure 3 As shown, the RU is a logical node that carries both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP transmission reception point (TRP), a remote radiohead (RRH), or other similar entities. In some examples, the Low-PHY includes PHY processing functions such as fast fourier transform (FFT), inverse fast fourier transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0226] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a fronthaul link through a lower-layer split CUS-plane (LLS-CUS) interface. The LLS-CUS may include a lower-layer split control (LLS-C) interface and a lower-layer split user (LLS-U) interface, respectively providing the control plane (C-Plane) and user plane (U-Plane). In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0227] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0228] The above Figures 1 to 3For illustrative purposes only, the embodiments described in this application are not limited thereto.

[0229] To facilitate understanding of the embodiments of this application, the relevant technical terms in the embodiments of this application are explained below.

[0230] 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.

[0231] PAPR is defined as the maximum signal envelope power (P). peak ) and average power (P) avg The ratio of ) is expressed in decibels (dB), that is

[0232]

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

[0238] like Figure 4 As shown, 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) waveforms, single-carrier-offset quadrature amplitude modulation (SC-OQAM) waveforms, and discrete Fourier transform spreading OFDM (DFT-s-OFDM) waveforms, etc. In the embodiments of this application, network devices and terminal devices can communicate using the single-carrier methods described above.

[0242] The following is an introduction to DFT-s-OFDM technology.

[0243] 5. DFT-s-OFDM: A single-carrier technology based on OFDM waveforms. Under the same power amplification, DFT-s-OFDM waveforms can provide greater output power and higher power amplifier efficiency compared to the aforementioned OFDM waveforms, thereby improving coverage and reducing power 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), a DFT-s-OFDM signal carrying real-virtual separation, a DFT-s-OFDM signal carrying a pulse amplitude modulation (PAM) constellation, a DFT-s-OFDM signal with real-virtual separation using an additive filter, a DFT-s-OFDM signal carrying a PAM constellation additive filter, and an SC-OQAM signal.

[0244] DFT-s-OFDM waveforms can be used for uplink transmission, but in high-frequency communication, due to device limitations, PAPR (Packet Reduction and Propagation) issues are more severe. Therefore, DFT-s-OFDM waveforms can also be used for downlink transmission. The frequency band for high-frequency communication can be 24250MHz to 52600MHz in NR systems, or higher bands supported by subsequent evolutions of NR systems above 52600MHz, or even higher frequency bands in next-generation communication systems, such as the terahertz (THz) band.

[0245] The DFT-s-OFDM technique involves a Discrete Fourier Transform (DFT) process preceding the OFDM processing; therefore, it can also be called a linear precoding OFDM technique. For ease of understanding, please combine... Figure 5A brief introduction to DFT-s-OFDM technology.

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

[0247] like Figure 5 As shown, in a DFT-s-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 performs an M-point DFT on these M points and maps them onto the M subcarriers. Then, a K-point IFFT is performed 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. The time-domain signal is then inserted with a CP (Continuous Coding). Finally, the discrete signal is converted to a continuous signal, up-converted, and transmitted via the 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.

[0248] When the receiver receives the signal through the channel and antenna, it sequentially performs processes such as removing the cyclic prefix, K-point DFT, and M-point subcarrier demapping to obtain a discrete time-domain sequence.

[0249] Compared to conventional OFDM, DFT-s-OFDM has a lower PAPR, which can improve the power transmission efficiency of mobile terminals, extend battery life, and reduce terminal costs.

[0250] 6. Pilot: Also known as a reference signal, the pilots involved in this application include, but are 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), and sensing reference signals (SeRS), etc.

[0252] It should be understood that the pilot signals in this application can also be signals that can be carried in OFDM or single-carrier mode, in addition to the reference signals listed above. Examples will not be provided here. In this application, DFT, FFT, and Fourier transform can be interchanged, as can inverse discrete fourier transform (IDFT), IFFT, and inverse Fourier transform.

[0253] The above text combined Figures 1 to 3 This paper briefly introduces the scenarios in which the sensing method provided in the embodiments of this application can be applied, and also introduces the basic concepts that may be involved in the embodiments of this application.

[0254] Currently, commonly used performance evaluation metrics for sensing services include coverage performance, accuracy, resolution, and anti-interference capability of distance / velocity / angle estimation. Among these, the PAPR of the time-domain signal can be used to measure coverage performance, while the ambiguity function is used to reflect the accuracy, resolution, and anti-interference capability of distance / velocity / angle estimation.

[0255] For example, the fuzzy function for continuous signals x(t) and y(t) can be defined as follows: If x(t) = y(t), then A(τ,μ) is called a self-ambiguity function; otherwise, it is called a mutual ambiguity function. The auto-ambiguity function peak sidelobe level (APSL) of the self-ambiguity function can be used to reflect multi-target resolution capability. The cross-ambiguity function peak sidelobe level (CPSL) of the mutual ambiguity function can reflect the interference suppression capability between multiple devices. Both PAPR performance and ambiguity function properties are closely related to waveforms and sequences.

[0256] Currently, the standard supports waveforms including CP-OFDM and DFT-s-OFDM, and the supported sequences mainly include Zadoff-Chu (ZC) sequences and Gold sequences. When generating a reference signal based on the Gold sequence, quadrature phase shift keying (QPSK) modulation or π / 2-binary phase shift keying (BPSK) modulation can be used. Figure 4 and Figure 5 CP-OFDM and DFT-s-OFDM have been described in detail, so I will not repeat them here.

[0257] For example, when using DFT-s-OFDM waveforms and π / 2BPSK modulation in the uplink, the current standard allows terminal devices to use frequency domain spectral shaping (FDSS) to reduce PAPR. The base station is unaware of whether the terminal device uses FDSS or the specific form of FDSS used, but the FDSS used by the terminal must meet the radio frequency specifications defined in the standard. Specifically, when the terminal device uses FDSS to transmit uplink signals, in Figure 4 or Figure 5 Before or after performing "M subcarrier mapping", the M points are multiplied by the M elements of the FDSS (or the M elements corresponding to the spectrum of the FDSS), where the number of elements of the FDSS is equal to the number of subcarriers allocated for transmission, and the FDSS must meet certain radio frequency specifications, with M being a positive integer. For example, assume the generated frequency domain signal is s = {s0, s1, s2, ..., s...} m-1}, the M elements corresponding to FDSS in the frequency domain are g = {g0, g1, g2, ..., g} M-1 The frequency domain signal after FDSS is x = {x0, x1, x2, ..., x}. M-1}, then x i =S i ·g i Where i = 0, 1, 2, ..., M-1, or x = diag{g}·s, where diag{g} represents a diagonal matrix composed of g, and the i-th element on the diagonal of the diagonal matrix is ​​g. 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 represented 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 through Fourier transform), and there is no limitation on this.

[0258] Figure 6 This is a schematic diagram of the radio frequency indicators of FDSS for communication services provided in an embodiment of this application.

[0259] The radio frequency indicators that FDSS for communication services needs to meet can be shown in formula (1).

[0260]

[0261] Among them, f c Let f be the center frequency corresponding to the allocated frequency domain resource, and let f be any frequency corresponding to the allocated frequency domain resource. For example, if the frequency domain resource includes M frequency domain cells, f is the frequency corresponding to the i-th frequency domain cell among the M frequency domain cells. For frequency f c The corresponding power (in dB), P fX is the power (in dB) corresponding to frequency f, and X is 25% of the allocated transmission bandwidth, 1≤i≤M, or 0≤i<M, where i is an integer.

[0262] like Figure 6 As shown, the dashed line represents the radio frequency indicators that FDSS needs to meet as shown in formula (1), and the solid line represents an FDSS implementation that meets the indicators shown in formula (1).

[0263] However, the radio frequency (RF) metrics defined in the current standard for FDSS are for communication services. When these RF metrics are applied to sensing services, they will cause the main lobe of the self-ambiguity function to broaden, reducing the distance resolution. Figure 7 This is a schematic diagram of a self-fuzzy function of radio frequency indicators using communication services, as shown in an embodiment of this application.

[0264] Figure 7 (a) shows one FDSS implementation that meets the FDSS metrics for communication services. For example... Figure 7 As shown in (b), the self-ambiguity function of the RF index that satisfies Formula (1) when used for sensing services will have its main lobe widened by about 41% compared to the self-ambiguity function without FDSS. This will seriously reduce the distance resolution and thus reduce the sensing performance.

[0265] To address the aforementioned issues, embodiments of this application propose a sensing method and apparatus, and design an FDSS for sensing services, thereby improving the sensing performance of signals.

[0266] The method provided by the embodiments of this application will be described in detail below with reference to the accompanying drawings. For ease of description, the following example uses a sending end and a receiving end as illustrations. The sending end can be replaced by components of the sending end (e.g., a chip, chip system, circuit, or communication module), and the receiving end can be replaced by components of the receiving end (e.g., a chip, chip system, circuit, or communication module). Furthermore, the steps described below as being performed by a single execution entity can also be divided into steps performed by multiple execution entities, which can be logically and / or physically separated.

[0267] In the frequency domain, resources can be referred to as frequency domain resources. Frequency domain resources can include one or more frequency domain units. A frequency domain unit can be 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 called a resource unit or resource particle), or a carrier, etc. This application's embodiments primarily use subcarriers as an example for illustration.

[0268] In a sensing scenario, for example, the sending end can be a terminal device, and the receiving end can be a network device. Alternatively, the sending end can be a network device, and the receiving end can be a terminal device. Another example is that the sending end can be terminal device #1, and the receiving end can be terminal device #2. Yet another example is that both the sending end and the receiving end can be terminal device #1. This application's embodiments do not impose such limitations.

[0269] Figure 8 This is a flowchart illustrating a sensing method provided in an embodiment of this application. Figure 8 The method shown includes the following steps.

[0270] S810, the transmitting end determines the first signal, which is obtained based on the second signal and the first shaping filter.

[0271] Wherein, 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 first spectrum 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, which includes M first frequency domain units. The first frequency is the frequency corresponding to the i-th first frequency domain unit among the M first frequency domain units, where M is a positive integer, 1≤i≤M, or 0≤i<M, and i is an integer.

[0272] In some implementations, the first value is less than the second value, which is associated with a second shaping filter used for communication services (or data transmission). In other words, the second shaping filter is for communication data transmission, communication reference signal transmission, or communication control signal transmission.

[0273] It should be understood that the first shaping filter is used for sensing services (or sensing sequence transmission, or sensing reference signal transmission). In other words, the first shaping filter is for sensing signal transmission. Or, the first shaping filter is for sensing reference signal transmission. The first frequency domain resource is used for sensing services. In other words, sensing signals are transmitted on the first frequency domain resource. Or, sensing reference signals are transmitted on the first frequency domain resource. That is, the first value is for sensing services, while the second value is for communication services. Here, the shaping filter can be understood as the aforementioned FDSS.

[0274] It should also be understood that the first and second values ​​can be predefined by the protocol, or in other words, the first and second values ​​can be defined by the protocol at the transmitting and receiving ends. Furthermore, 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 predefined by the protocol. This relationship can be called the first relationship. In other words, the first relationship can be understood as the radio frequency performance index of FDSS for sensing services, or the constraint or limitation of FDSS for sensing services.

[0275] The first signal is obtained from the second signal and the first shaping filter. It can also be understood that the first signal is obtained by performing the first shaping filter on the second signal. Alternatively, it can be understood that the first signal is obtained by multiplying the M points of the second signal and the M elements corresponding to the first shaping filter element by element. The first signal also includes M points. Therefore, the M points of the first signal are obtained by performing frequency domain spectral shaping on the M points of the second signal.

[0276] Optionally, the transmitting end generates a second signal, and the M points included in the second signal can be understood as the M data points, M modulation symbols, or M sequence elements included in the second signal.

[0277] Figure 9 This is a schematic diagram of a signal processing flow provided in an embodiment of this application. Figure 9 The diagram illustrates the signal processing flow of two transmitters via a first shaping filter.

[0278] like Figure 9As shown in Method 1, if the number of frequency domain units (e.g., subcarriers) allocated for transmission is M, the signal #1 generated by the transmitter includes M points (or M data points, M modulation symbols, or M sequence elements, etc.). The transmitter maps the M points of signal #1 onto the M subcarriers, resulting in signal #2, which also includes M points. The transmitter then multiplies the M points of signal #2 in the frequency domain with the M elements corresponding to the first shaping filter element-wise, resulting in signal #3, which also includes M points. A K-point IFFT is then performed to transform signal #3 from the frequency domain to the time domain, where K is a power of 2 and K ≥ M. A cyclic prefix (CP) is then added to the time-domain signal, converting it from a discrete signal to a continuous signal. After up-conversion, it is transmitted via the RF link. Since the length of the IFFT can be greater than M, signal #3 can be padded with zeros to K points before the IFFT. Adding a cyclic prefix after the IFFT avoids inter-symbol interference. In Method 1, signal #2 can be understood as the second signal mentioned above, and signal #3 can be understood as the first signal.

[0279] like Figure 9 As shown, in Method 2, if the number of frequency domain units (e.g., subcarriers) allocated for transmission is M, the signal #1 generated by the transmitter includes M points (or M data points, M modulation symbols, or M sequence elements, etc.). The transmitter multiplies the M points of signal #1 in the frequency domain with the M elements corresponding to the first shaping filter element by element, resulting in signal #4, which also includes M points. Subsequently, the transmitter maps signal #4 onto the M subcarriers, resulting in signal #5, which also includes M points. Then, a K-point IFFT is performed to transform 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, a cyclic prefix CP is added to the time-domain signal, and it is converted from a discrete signal to a continuous signal. After up-conversion, it is transmitted through the RF link. In Method 2, signal #1 can be understood as the second signal mentioned above, and signal #4 can be understood as the first signal.

[0280] It should be understood that if the first signal or the first shaping filter determined by the transmitting end satisfies the first relationship, and the receiving end does not know the specific value of the first shaping filter used by the transmitting end, then the receiving end does not need to process the received signal based on the first shaping filter.

[0281] It should also be understood that if the signal waveform is CP-OFDM, the M points included in signal #1 are the M points that have not undergone DFT; if the signal waveform is DFT-s-OFDM, the M points included in signal #1 are the M points that have undergone DFT. Furthermore, this application does not limit the specific waveform, or in other words, it does not limit other steps besides the FDSS operation. That is, in addition to the steps mentioned above, other steps may be included, some steps may be omitted, or the order of some steps may be interchanged, etc.

[0282] Optionally, a third signal is determined based on the second signal and the second shaping filter. The absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to the second value. The second spectrum is either the spectrum of the second shaping filter or the spectrum of the third signal.

[0283] Wherein, the second center frequency is the center frequency of the second frequency domain resource, which includes N second frequency domain units, and the second frequency is the frequency corresponding to the j-th second frequency domain unit, where N is a positive integer, 1≤j≤N, or 0≤j<N, and j is an integer. The second frequency domain resource is used for communication services (or data transmission), that is, data transmission is performed on the second frequency domain resource. For example, the second value is 14dB in the aforementioned formula (1), and the first value is 3dB, that is, the first value is less than the second value. It should be understood that the values ​​of N and M can be the same or different. It should also be understood that the first frequency domain resource and the second frequency domain resource can be the same or different, and the first frequency domain unit and the second frequency domain unit can be the same or different.

[0284] It should be understood that the second shaping filter is used for communication services, 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 predefined by the protocol, or defined by the protocol at both the transmitting and receiving ends. In other words, this relationship can be understood as a radio frequency specification for FDSS of communication services, or a constraint or limitation on FDSS of communication services.

[0285] In other words, the protocol can define the radio frequency (RF) metrics for FDSS for sensing services and the RF metrics for FDSS for communication services, respectively.

[0286] Figure 10 This is a schematic diagram of another signal processing flow provided in an embodiment of this application. Figure 10 The process of achieving integrated sensing at the transmitting end through signal processing using a first shaping filter and a second shaping filter is illustrated. Figure 10 The method of using the first shaping filter for sensing services is as follows: Figure 9 Method two will be used as an example for explanation.

[0287] like Figure 10As shown, for sensing services, if the number of frequency domain units (e.g., subcarriers) allocated for transmission is M, the transmitter generates signal #1, which includes M points (or M data points, M modulation symbols, or M sequence elements, etc.). The transmitter multiplies the M points of signal #1 in the frequency domain with the M elements corresponding to the first shaping filter, resulting in signal #4, which also includes M points. Subsequently, the transmitter maps signal #4 onto the M subcarriers, resulting in signal #5, which also includes M points. Then, a K-point IFFT is performed to transform 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, 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 through the radio frequency link. Signal #1 can be understood as the second signal mentioned above, and signal #4 can be understood as the first signal.

[0288] For communication services, if the number of frequency domain units (e.g., subcarriers) allocated for transmission is M (taking the case where the N values ​​of the aforementioned second frequency domain unit are the same as the value of M as the N values ​​of the second frequency domain unit), the transmitter generates signal #1, which includes M points (or M data points, M modulation symbols, or M sequence elements, etc.). The transmitter multiplies the M points of signal #1 in the frequency domain by the M elements corresponding to the second shaping filter element-wise, resulting in signal #6, which also includes M points. Subsequently, the transmitter maps signal #6 onto M subcarriers, resulting in signal #7, which also includes M points. Then, a K-point IFFT is performed to transform signal #7 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, 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 through the radio frequency link. Signal #1 can be understood as the second signal mentioned above, and signal #6 can be understood as the third signal.

[0289] It should be understood that signal #1 for sensing services and signal #1 for communication services can be the same or different. That is, the transmitting end can use the same signal #1 to generate signal #4 and signal #6 respectively.

[0290] For integrated sensory applications, Figure 10 The first and second shaping filters can be the same. For example, the M points of signal #1 in the frequency domain are multiplied element-wise by the M elements corresponding to the first shaping filter. Signal #1 can be used for both sensing and communication services.

[0291] It should be understood that if the first signal or the first shaping filter determined by the transmitting end satisfies the first relationship, and the receiving end does not know the specific value of the first shaping filter used by the transmitting end, then 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 of the second shaping filter used by the transmitting end, then the receiving end does not need to process the received signal based on the second shaping filter.

[0292] In one possible implementation, the first frequency is the frequency corresponding to the i-th first frequency domain unit among the M first frequency domain units included in the first frequency domain resource. It can also be understood that the first frequency is the frequency corresponding to any one of the first frequency domain units among all the 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 the center frequency of the i-th first frequency domain unit or the frequency of any frequency point. For example, when the first frequency domain unit is a subcarrier, the frequency corresponding to the first frequency domain unit can be understood as the center frequency of the subcarrier.

[0293] 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, as shown in formula (2).

[0294] |P f -P fc |≤Y0 (2)

[0295] Among them, f c Indicates the first center frequency. P represents the power (in dB) at the first center frequency, f represents the first frequency, and P represents the power at the first center frequency. f Y0 represents the power corresponding to the first frequency (in dB), and Y0 represents the maximum power attenuation of the power corresponding to the first frequency relative to the power corresponding to the first center frequency. In other words, Y0 represents the first value.

[0296] In one possible implementation, the first value is less than or equal to 3 dB. It should be understood that this application primarily describes the magnitude of the value in dB. In addition, the magnitude of the value can also be described in the form of linear values. When described in the form of linear values, the difference can be replaced by a ratio, and this is not limited.

[0297] In one possible implementation, when the absolute value of the 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 of the spectrum of the first signal at the first center frequency and the power of the spectrum of the first signal at the first frequency is less than or equal to a third value. Wherein, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

[0298] It should be understood that the third value can be predefined by the protocol, or rather, defined by the protocol at the transmitting and receiving ends. Furthermore, 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 called the second relationship, which can also be predefined by the protocol.

[0299] In other words, in the RF specifications of FDSS for sensing services, different power specifications can exist for different frequency ranges. Generally speaking, the more frequency ranges there are, the more precisely or rigorously the constraints on the FDSS can be described according to specific needs, enabling the FDSS under these constraints to better meet the expected performance. This application does not limit the number of frequency ranges, nor does it limit the number of power specifications corresponding to each frequency range. The following detailed explanation uses two frequency ranges as an example.

[0300] For example, the first relation and the second relation can be represented as shown in formula (3).

[0301] It should be understood that the absolute value of the difference between the frequencies 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 a first threshold. The absolute value of the difference between the frequencies 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. Where M = a + b, and a and b are positive integers.

[0302]

[0303] Among them, f c Indicates the first center frequency; The first center frequency corresponds to the power (in dB); f represents the frequency corresponding to the i-th first frequency domain unit included in the first frequency domain resource, which is the first frequency; P f P represents the power (in dB) at 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. f ′ represents the power (in 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; X0 represents the first threshold, for example, the first threshold is 25% of the first frequency domain resource bandwidth; Y1 represents the maximum value of the power attenuation corresponding to the first frequency relative to the power attenuation corresponding to the first center frequency, that is, Y1 represents the third value; Y2 represents the maximum value of the power attenuation corresponding to the first frequency relative to the power attenuation corresponding to the first center frequency, that is, Y2 represents the first value.

[0304] As one possible implementation, the third value is 1dB or 2dB, and the first value is 3dB or 4dB, meaning the third value is less than the first value.

[0305] It should be understood that Y0 in formula (2) is called the first value, and Y2 in formula (3) is also called the first value. These two can be considered as parallel solutions. 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. This application does not impose any restrictions on this.

[0306] S820: The transmitting end sends a first signal to the receiving end on the first frequency domain resource, and the receiving end receives the first signal from the transmitting end on the first frequency domain resource. The first signal is used for sensing services.

[0307] For example, the first signal is a sensing sequence, or the first signal is a sensing reference signal.

[0308] Optionally, the transmitting end transmits a third signal on the second frequency domain resources. This third signal is used for communication services. For example, the third signal is communication data.

[0309] Optionally, in S830, the receiver acquires channel parameters or sensing parameters based on the first signal.

[0310] In one possible implementation, the receiver processes the first signal according to the first shaping filter to obtain channel parameters or sensing parameters. For example, the second signal is a sequence or reference signal, and the transmitter determines the second signal and / or the first shaping filter and instructs it to the receiver, or the receiver determines the second signal and / or the first shaping filter and instructs it to the transmitter.

[0311] The receiver obtains a local sequence (or local reference signal) based on the second signal and the first shaping filter. Based on the received signal and the local sequence (or local reference signal), it acquires channel parameters or sensing parameters (such as multipath parameters, time delay parameters, Doppler parameters, angle parameters, etc.). For example, the receiver converts the received signal to the frequency domain (referred to as received signal #A) using a Fourier transform. Based on the second signal and the first shaping filter, it obtains a local frequency domain sequence. The received signal #A and the local frequency domain sequence are multiplied by their conjugates to obtain the received signal #B. Then, the received signal #B is converted to the time domain using an inverse Fourier transform to obtain an ambiguity function. Based on this ambiguity function, sensing parameters such as time delay and Doppler can be acquired. Alternatively, the receiver converts the local frequency domain sequence to the time domain using an inverse Fourier transform to obtain a local time domain sequence. Then, correlation operations are performed on the received signal and the local time domain sequence to obtain an ambiguity function. Based on this ambiguity function, sensing parameters such as time delay and Doppler can be acquired.

[0312] For sensing services, such as Figure 9As shown, if the transmitter sends a signal using method one, and the receiver receives the signal through the antenna, it sequentially removes the cyclic prefix and performs a K-point FFT to obtain M points comprising signal #8. Subsequently, the receiver obtains a local sequence (or local reference signal) based on signal #2 and the first shaping filter. The receiver then uses the local sequence (or local reference signal) and signal #8 to obtain channel parameters or sensing parameters; alternatively, the receiver processes signal #8 and the local sequence (or local reference signal) through M-point subcarrier demapping and other processes to obtain two discrete time-domain sequences, which the receiver then uses to obtain channel parameters or sensing parameters.

[0313] For sensing services, such as Figure 9 As shown, if the transmitter sends a signal using method two, and the receiver receives the signal through the antenna, it sequentially performs processes such as removing the cyclic prefix, K-point FFT, and M-point subcarrier demapping on the signal to obtain signal #9 comprising M points. The receiver obtains the local sequence (or local reference signal) based on signal #1 and the first shaping filter. Then, the receiver obtains the channel parameters or sensing parameters based on signal #9 and the local sequence (or local reference signal).

[0314] For integrated sensing services, such as Figure 10 As shown, taking the transmitting end transmitting a signal via method two as an example, the receiving end can demodulate the received signal to obtain communication information, and can also obtain channel parameters or sensing parameters based on the received signal and the local sequence (or local reference signal). For example, the first shaping filter and the second shaping filter are the same, that is, signal #5 and signal #7 are the same signal, and the first frequency domain resources and the second frequency domain resources are the same. The receiving end converts the received signal to the frequency domain (called the received signal #C) through Fourier transform, obtains the local frequency domain signal based on the second signal and the first shaping filter, performs conjugate dot product of the received signal #A and the local frequency domain signal to obtain the received signal #D, and then converts the received signal #D to the time domain through inverse Fourier transform to obtain the ambiguity function. Based on this ambiguity function, sensing parameters such as time delay and Doppler can be obtained; and communication information can be obtained by performing operations such as demodulation and channel decoding on the received signal #C.

[0315] In the above technical solution, the radio frequency (RF) parameters of the first shaping filter associated with the sensing service are predefined by the protocol, or in other words, the RF parameters of the first shaping filter associated with the sensing service are predefined in both the transmitting and receiving ends. Compared to directly using the RF parameters of the shaping filter for communication services, using a shaping filter for sensing services for signal processing can improve sensing performance (e.g., improve distance resolution). Compared to not using a 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 services proposed in this application can improve overall sensing performance. Furthermore, by predefining the RF parameters of the first shaping filter associated with the sensing service through the protocol, signaling overhead at both the transmitting and receiving ends can be saved.

[0316] Figure 11 This is a schematic diagram of an FDSS that satisfies the radio frequency indicators of sensing services and its corresponding self-fuzzy function, as shown in an embodiment of this application.

[0317] Figure 11 (a) represents one implementation using RF metrics for FDSS (Frequency Spectrum Controller) for communication services and another implementation using RF metrics for FDSS (Frequency Spectrum Controller) for sensing services, respectively. For example, if the first frequency is the frequency corresponding to any one of the frequency domain units included in the first frequency domain resource, Figure 11 The implementation of the RF metrics for FDSS for sensing services shown in (a) is an implementation where the first value is 3dB. For example... Figure 11 As shown in (a), an implementation of the RF metrics for FDSS used for sensing services exhibits a much smaller power variation than an implementation of the RF metrics for FDSS used for communication services.

[0318] like Figure 11 As shown in (b), the main lobe broadening of the self-ambiguity function of the FDSS with the first value of 3dB using the RF index of formula (2) is less than that of the FDSS with the RF index of formula (1). Therefore, the FDSS (first shaping filter for sensing services) for sensing services can ensure better distance resolution, thereby improving sensing performance.

[0319] Figure 12 This is a flowchart illustrating another sensing method provided in an embodiment of this application. Figure 12 The method shown includes the following steps. It should be understood that... Figure 12 The execution entity is illustrated using the sending and receiving ends as examples. There are no restrictions on the specific form of the execution entity; other examples can be found elsewhere. Figure 8 The relevant descriptions in the text will not be repeated here.

[0320] S1201, the transmitting end receives or sends first information, and the receiving end sends or receives first information. The first information is used to indicate the values ​​of the M elements corresponding to the first shaping filter, where M is a positive integer.

[0321] Specifically, in scenario one, if the sending end is a terminal device and the receiving end is a network device, then the sending end receives the first information sent by the receiving end. If the sending end is a network device and the receiving end is a terminal device, then the receiving end receives the first information sent by the sending end. In scenario two, if the sending end is terminal device #1 and the receiving end is terminal device #2, then the sending end receives the first information from the network device, and the receiving end receives either the first information from the network device or the first information from the sending end. In scenario three, if the sending end is terminal device #1 and the receiving end is also terminal device #1, then terminal device #1 receives the first information from the network device.

[0322] It should be understood that for cases two and three, S1201 is not transmitted directly between the sending and receiving ends. Figure 12 The S1201 shown is drawn using case one as an example.

[0323] In one possible implementation, the first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter, where M represents the number of first frequency domain units included in the first frequency domain resource.

[0324] In some implementations, the first parameter may include 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.

[0325] For example, the first parameter can be a parameter related to traditional filters such as root raised cosine (RRC) filters, Gaussian filters, and Chebyshev filters. For instance, the raised cosine roll-off parameter and cutoff parameter of an RRC filter, the pulse width and standard deviation of a Gaussian filter, and the filter order and desired cutoff frequency of a Chebyshev filter.

[0326] Optionally, the transmitting end determines the values ​​of the M elements corresponding to the first shaping filter based on the parameters related to the traditional filter.

[0327] In some implementations, the first information includes the values ​​of the Q elements corresponding to the 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 the number of frequency domain units included in the first frequency domain resource, and Q is a positive integer.

[0328] Optionally, the values ​​of the Q elements corresponding to the third shaping filter can also be predefined at the transmitting or receiving end.

[0329] That is, the number of elements in the third shaping filter included in the first information can be different from the number of elements in the first shaping filter. 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 the Q common elements included in the common shaping filter. The first information includes the discrete amplitude of the Q elements corresponding to the third shaping filter, or the first information includes the discrete amplitude and discrete phase of the Q elements corresponding to the third shaping filter.

[0330] Specifically, the transmitting or receiving end obtains the values ​​of the M elements corresponding to the first shaping filter by taking the values ​​of the Q elements corresponding to the third shaping filter, based on sequences of different lengths or different numbers of frequency domain units (e.g., subcarriers).

[0331] For example, if M is less than Q, the transmitting or receiving end downsamples 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 instance, if the number of elements mapped to the frequency domain is M = 36 and the number of elements corresponding to the common filter is Q = 72, the elements corresponding to the common filter are downsampled by a factor of 2 to obtain the values ​​of the 36 elements corresponding to the first shaping filter.

[0332] For example, if M is greater than Q, the transmitting or 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 instance, if the number of elements mapped to the frequency domain is M = 120, and the number of elements corresponding to the common filter is Q = 12, the elements corresponding to the common filter are transformed into the time domain using an IDFT to obtain Q elements in the time domain. These Q elements are then padded with zeros to M elements, and an M-point DFT is performed to transform them back into 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 interchanged, as can inverse Fourier transform, IDFT, and IFFT.

[0333] In some implementations, the first information includes the value of the element corresponding to the first shaping filter.

[0334] Optionally, the values ​​of the elements corresponding to the first shaping filter can be generated based on the first parameter.

[0335] Optionally, the values ​​of the elements corresponding to the first shaping filter can also be obtained based on the optimization for perception.

[0336] For example, the values ​​of the elements corresponding to the first shaping filter are obtained based on optimization theory. Alternatively, the values ​​of the elements corresponding to the first shaping filter are obtained based on artificial intelligence (AI) tools.

[0337] As one possible implementation, the first information includes the values ​​of M elements corresponding to the first shaping filter, where M represents the number of frequency domain units included in the first frequency domain resource, and M is a positive integer.

[0338] 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.

[0339] For example, if the network device configures the sequence length for the terminal device to be M, or the network device configures the number of subcarriers for transmission for the terminal device to be M, then the first information includes the discrete amplitude of the M elements corresponding to the first shaping filter, or the first information includes the discrete amplitude and discrete phase of the M elements corresponding to the first shaping filter.

[0340] It should be understood that different first shaping filters can be configured for different length sequences or numbers of subcarriers, and the embodiments of this application do not limit the number of first shaping filters.

[0341] Optionally, in S1202, a first signal is determined, which is obtained based on the values ​​of the second signal and the M elements corresponding to the first shaping filter. The first signal is used for sensing services.

[0342] For example, the first signal is for a sensing sequence, or the first signal is for a sensing reference signal.

[0343] Optionally, a third signal is determined, which is obtained based on the second signal and the second shaping filter, and the third signal is used for communication services.

[0344] For example, the third signal is the data transmission for communication services.

[0345] For sensing scenarios, the process by which the transmitting end determines the first signal can be referenced. Figure 9 This will not be elaborated upon here. For scenarios involving integrated sensing, the process by which the transmitting end determines the first and third signals can be found in [reference needed]. Figure 10 This will not be elaborated upon here.

[0346] S1203, the transmitting end sends a first signal to the receiving end on the first frequency domain resource, and the receiving end receives the first signal from the transmitting end on the first frequency domain resource. The first signal is used for sensing signals, and M represents the number of first frequency domain units included in the first frequency domain resource.

[0347] For example, the first signal is a sensing sequence, or the first signal is a sensing reference signal.

[0348] Optionally, the transmitting end transmits a third signal to the receiving end on the second frequency domain resources, and the receiving end receives the third signal from the transmitting end on the second frequency domain resources. The third signal is used for communication services. For example, the third signal is communication data.

[0349] Optionally, the receiver acquires channel parameters or sensing parameters based on the first signal.

[0350] Figure 13 This is another schematic diagram of a signal processing flow provided in the embodiments of this application. Figure 13 The process of determining the first signal at the transmitting end has already been completed. Figure 9 The details are described in detail elsewhere, so they will not be repeated here.

[0351] For sensing services, after synchronizing the first shaping filter at the transmitting and receiving ends, if the transmitting end sends the signal using method two, the receiving end processes it using method three. Specifically, when the receiving end receives the signal through the antenna, it sequentially removes the cyclic prefix and performs a K-point FFT to obtain M points comprising signal #10. Subsequently, the receiving end performs M-point subcarrier demapping on signal #10 to obtain M points comprising signal #11. Then, it performs an inverse operation on signal #11 using the first shaping filter to obtain M points comprising signal #12, and then obtains channel parameters or sensing parameters based on signal #12.

[0352] For sensing services, after synchronizing the first shaping filter at the transmitting and receiving ends, if the transmitting end sends a signal using method one, the receiving end processes it using method four. Specifically, when the receiving end receives the signal through the antenna, it sequentially removes the cyclic prefix and performs a K-point FFT to obtain M points comprising signal #13. Then, it performs an inverse operation on signal #13 using the first shaping filter to obtain M points comprising signal #14. Subsequently, the receiving end performs M-point subcarrier demapping on signal #14 to obtain M points comprising signal #15. Then, it obtains channel parameters or sensing parameters based on signal #15.

[0353] In scenarios involving integrated sensing and communication, the first signal can be used for sensing services and communication services, for example, Figure 13 Signal #1 is used for sensing and communication services. In this case, the first shaping filter and the second shaping filter can be the same. After the first shaping filter is synchronized at the transmitting and receiving ends, if the transmitting end sends the signal using method two, the receiving end can receive the signal using method three. If the transmitting end sends the signal using method one, the receiving end can receive the signal using method four.

[0354] In the above technical solution, signaling indication enables both the receiving and transmitting ends to clearly define the first shaping filter used for sensing services. Compared to directly using the RF performance of shaping filters designed for communication services, signal processing using a shaping filter specifically for sensing services can improve sensing performance (e.g., improve distance resolution). Furthermore, the receiving end can also know the specific form of the first shaping filter used by the transmitting end and process the received signal based on the first shaping filter, thus avoiding signal-to-noise ratio (SNR) loss. Compared to not using a shaping filter, using a first shaping filter associated with sensing services can reduce PAPR, thereby improving coverage performance. Therefore, using the first shaping filter for sensing services proposed in this application can improve overall sensing performance. Moreover, the first shaping filter can be dynamically indicated via signaling indication.

[0355] The power attenuation limit for the first shaping filter is smaller than the power attenuation limit for the shaping filter used in communication services. This reduces the main lobe broadening of the self-ambiguity function, thereby ensuring better distance resolution.

[0356] Optionally, in S1204, the sending end receives or sends the second information, and the receiving end sends or receives the second information.

[0357] It should be understood that the specific implementation of receiving or sending at the sending and receiving ends can be found in S1201, and will not be elaborated here.

[0358] The second information includes first indication information, which indicates a waveform or set of waveforms, and the 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 the 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, or in other words, that the third indication information indicates that the first shaping filter is used for sequence transmission and reception or sensing reference signal transmission and reception.

[0359] Specifically, if the second information includes the first indication information, different waveforms or waveform sets may correspond to different first shaping filters, and the first information may indicate multiple first shaping filters. For example, different waveforms may include CP-OFDM, DFT-s-OFDM, or other new waveforms.

[0360] 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 thus improving the overall sensing performance.

[0361] If the second information includes the second indication information, different sequences or sets of sequences may correspond to different first shaping filters, and the first information may indicate multiple first shaping filters.

[0362] In this way, different sequences 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 thus improving the overall sensing performance.

[0363] If the second information includes the third indication information, and the sensing service and the communication service correspond to different shaping filters, the first information can indicate the first shaping filter.

[0364] In this way, different service types can use corresponding shaping filters, thereby improving sensing performance and communication performance respectively.

[0365] If the second information includes both first and second indication information, for example, the first indication information indicates a waveform, and the second indication information indicates different sequences, then under the same waveform, different sequences can correspond to different first shaping filters. In this case, the first information indicates multiple first shaping filters. Alternatively, if the first indication information indicates a waveform, and the second indication information indicates a set of sequences, then under the same waveform and sequence set, different PAPR and self-ambiguity function performances correspond to different first shaping filters. In this case, the first information indicates multiple first shaping filters.

[0366] Optionally, the second information may also include fourth indication information, which is used to indicate that the second shaping filter is used for communication services.

[0367] Optionally, the third indication information can also be used to indicate that the first shaping filter is used for sensing services and communication services.

[0368] Optionally, in S1205, the transmitting end receives or sends third information, and the receiving end sends or receives third information. The third information is used to determine the values ​​of the M elements corresponding to the first shaping filter, or the third information is used to determine the first parameter, and the first parameter is used to determine the values ​​of the M elements corresponding to the first shaping filter.

[0369] Scenario 1: If the sending end is a terminal device and the receiving end is a network device, then the receiving end receives the third information sent by the sending end. If the sending end is a network device and the receiving end is a terminal device, then the sending end receives the third information sent by the receiving end. Scenario 2: If the sending end is terminal device #1 and the receiving end is terminal device #2, then the sending end sends third information to the network device, and / or the receiving end sends third information to the network device. The third information sent by terminal device #1 and terminal device #2 can be the same or different. Scenario 3: If the sending end is terminal device #1 and the receiving end is also terminal device #1, terminal device #1 sends third information to the network device.

[0370] It should be understood that for scenarios two and three, S1205 is not transmitted directly between the sending and receiving ends. Figure 12 The S1205 shown is drawn using case one as an example.

[0371] The third information includes at least one of the following: minimum distance resolution, minimum interference suppression capability, or the expected peak-to-average power ratio (PAPR) corresponding to the first signal.

[0372] Specifically, if the third information includes minimum distance resolution, the network device can determine the first shaping filter or the first parameter based on the minimum distance resolution requirement reported by the terminal device. More specifically, the first shaping filter or the first parameter is determined by constraining the main lobe broadening of the self-fuzzy function using the minimum distance resolution.

[0373] If the third information includes minimum interference suppression capability, the network device can determine the first shaping filter or the first parameter based on the minimum interference suppression capability requirement reported by the terminal device. More specifically, the first shaping filter or the first parameter is determined by constraining the sidelobe height of the self-fuzzy function through the minimum interference suppression capability.

[0374] 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 based on the expected PAPR corresponding to the first signal reported by the terminal device.

[0375] In this way, the first shaping filter or first parameter generated by the third information can be applied to different sensing performances and thus to sensing services with different requirements for different sensing performances, making the generated first waveform filter or first parameter more targeted.

[0376] Optionally, in S1206, the transmitting end receives or transmits fourth information, and the receiving end transmits or receives fourth information, which is used to indicate the first frequency domain resources.

[0377] It should be understood that the specific implementation of receiving or sending at the sending and receiving ends can be found in S1205, and will not be elaborated here.

[0378] It should also be understood that S1201, S1204, S1205, and S1206 are executed before S1202, and S1205 must be executed before S1201. The execution order of the remaining S1204, S1201, and S1206 is not limited in this embodiment. That is, the third information needs to be transmitted before the first information, but this embodiment does not limit the execution order of the first, second, and fourth information.

[0379] As one possible implementation, the first shaping filter indicated by the first information satisfies a first relationship, or the first shaping filter satisfies a first relationship and a second relationship. The first relationship includes: 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 and second relationships include: when the absolute value of the 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 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; when the absolute value of the difference between the first frequency and the first center frequency is greater than the first threshold, 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 the first value.

[0380] Specifically, if the first information includes the values ​​of the M elements corresponding to the first shaping filter, then the first shaping filter satisfies a first relation, or the first shaping filter satisfies both the first and second relations. If the first information includes a first parameter, then the values ​​of the M elements corresponding to the first shaping filter determined by the first parameter satisfy either the first relation or both the first and second relations.

[0381] In other words, the first information indicates that the first shaping filter satisfies Figure 8 The relevant description refers to the radio frequency parameters of the first shaping filter for sensing services.

[0382] As one possible implementation, the values ​​of the M elements corresponding to the first shaping filter indicated by the first information are generated based on the third information and satisfy either the first relation or the first and second relations.

[0383] Specifically, if the first information includes the values ​​of the M elements corresponding to the first shaping filter, then the values ​​of the M elements corresponding to the first shaping filter are determined based on the third information and satisfy either the first relation or the first and second relations. If the first information includes a first parameter, then the first parameter is determined based on the third information, and the values ​​of the M elements corresponding to the first shaping filter determined by the first parameter satisfy either the first relation or the first and second relations.

[0384] In this way, for sensing services, not only can the overall sensing performance be improved, but SNR loss can also be avoided.

[0385] It should be understood that the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0386] It should also be understood that this application will present various aspects, embodiments, or features in relation to systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0387] It should also be understood that in some of the above embodiments, the examples are mainly based on devices in existing network architectures (e.g., transmitters or receivers). It should be understood that the specific form of the device is not limited in the embodiments of this application. For example, any device that can achieve the same function in the future is applicable to the embodiments of this application.

[0388] It is understood that the methods and operations implemented by the device (e.g., the transmitting end or the receiving end) in the above-described method embodiments can also be implemented by components of the device (e.g., chips or circuits).

[0389] The above, combined with Figures 1 to 13 The sensing method provided in the embodiments of this application is described in detail. The above sensing method is mainly introduced from the perspective of the interaction between the sending end and the receiving end. It is understood that in order to realize the above functions, the sending end or the receiving end includes the corresponding hardware structure and / or software module to perform each function.

[0390] Those skilled in the art will recognize that, based on the units and algorithm steps described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0391] The following, combined with Figures 14 to 17 This application provides a detailed description of the sensing device provided in the embodiments. The descriptions of the device embodiments correspond to the descriptions of the method embodiments; therefore, for details not described in detail, please refer to the above method embodiments. For the sake of brevity, some details are not repeated.

[0392] This application embodiment can divide the sensing device into functional modules according to the above method example. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware, software, or a combination of both. The module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation. The following description uses the division of functional modules according to each function as an example.

[0393] Figure 14 This is an exemplary block diagram of the sensing device 1000 provided in an embodiment of this application. Figure 14 As shown, the sensing device 1000 may include a chip system 1100, a memory 1200, a bus 1300, a power management module 1400, or a transceiver 1500, etc.

[0394] The chip system 1100 can be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed through integrated logic circuits in the hardware of the chip system 1100 or through software instructions.

[0395] As an example and not a limitation, the chip system 1100 may include circuitry or chips responsible for signal processing (such as a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) or SIP chip containing a modem core).

[0396] Optionally, the chip system 1100 may also include a memory (such as a cache) for storing instructions and data. In some embodiments, the memory in the chip system 1100 is a cache memory. This memory can store instructions or data that the chip system 1100 has just used or that are used repeatedly. If the chip system 1100 needs to use the instruction or data again, it can directly retrieve it from the memory. This avoids repeated accesses, reduces the waiting time of the chip system 1100, and thus improves the efficiency of the system.

[0397] In some embodiments, the chip system 1100 may include one or more interfaces. Interfaces may 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 module (SIM) interface, and / or a universal serial bus (USB) interface, etc.

[0398] The memory 1200 may include random access memory (RAM) and read-only memory (ROM). The memory 1200 may store computer-readable, computer-executable code, including instructions that, when executed, cause the processor to perform the various functions described in this application.

[0399] Optionally, the code may include instructions for implementing various aspects of the embodiments of this application, including instructions for supporting the generation or parsing of first information. The code may be stored in a non-transitory computer-readable medium such as system memory or other types of memory. In some cases, the code may not be directly executable by the chip system 1100, but may enable a computer (e.g., at compile and execution time) to perform the functions described in this application. In some cases, memory 1200 may in particular contain a basic input / output (I / O) system that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0400] For example, the chip system 1100 executes various functional applications and data processing of the sensing device 1000 by running instructions stored in the memory 1200. For instance, when the sensing device 1000 transmits data with other devices (e.g., terminal devices, network devices, or core network devices), the chip system 1100 of the sensing device 1000 can call the computer-executable program code stored in the memory 1200 to implement the data and / or signaling transmission methods provided in the embodiments of this application.

[0401] Alternatively, the memory 1200 can be integrated into the aforementioned chip system 1100, or it can be independent of the chip system 1100.

[0402] Bus 1300 can be USB, used to support communication between various parts of sensing device 1000.

[0403] The power management module 1400 is used to receive charging input from the charger. Optionally, the power management module 1400 can also supply power to the sensing device 1000 while charging the sensing device 1000 (e.g., the battery module of the sensing device 1000). By way of example and not limitation, the power management module 1400 can also supply power to other devices besides the sensing device 1000.

[0404] Transceiver 1500 can communicate bidirectionally via one or more antennas, wired links, or wireless links. For example, transceiver 1500 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1500 may also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and for demodulating packets received from the antenna. Transceiver 1500 may include a receiver and a transmitter, the receiver performing the function of receiving information and the transmitter performing the function of transmitting information.

[0405] In some cases, a wireless device may include a single antenna. However, in other cases, a device may have more than one antenna, such as... Figure 14 Antennas 1 and 2 shown may be capable of simultaneously transmitting or receiving multiple wireless transmissions. Exemplarily, antennas 1 and 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the sensing device 1000 can be used to cover one or more communication frequency bands. Different antennas can also be multiplexed to improve antenna utilization. For example, 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 conjunction with a tuning switch. The sensing device 1000 can transfer files to other devices via wireless communication functions.

[0406] In one design, the sensing device 1000 may correspond to the transmitting end in the above method embodiment.

[0407] The device 1000 can implement the steps or processes corresponding to those executed by the transmitting end in the above method embodiments, wherein the transceiver 1500 can be used to perform the transmitting and receiving related operations of the transmitting end in the above method embodiments; and the chip system 1100 can be used to perform the processing related operations of the transmitting end in the above method embodiments.

[0408] In another design, the sensing device 1000 may correspond to the receiving end in the above method embodiment.

[0409] The device 1000 can implement the steps or processes executed by the receiving end in the above method embodiments, wherein the transceiver 1500 can be used to perform the receiving and transmitting related operations of the receiving end in the above method embodiments; the chip system 1100 can be used to perform the processing related operations of the receiving end in the above method embodiments.

[0410] Under this design, the sensing device 1000 may include, for example: Figure 14 The short-range communication module 1640, sensor 1610, display 1620, or camera 1630 shown are examples of such modules.

[0411] The short-range communication module 1640 may include a wireless network (WI-FI, or WIFI), or a module that supports short-range communication such as Bluetooth.

[0412] Sensor 1610 may include pressure sensors, gyroscope sensors, barometric pressure sensors, magnetic sensors, accelerometers, distance sensors, proximity sensors, fingerprint sensors, temperature sensors, touch sensors, ambient light sensors, bone conduction sensors, etc.

[0413] Display 1620 is used to display images, videos, etc. 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 flexible light-emitting diode (FLED), a miniature LED, a microLED, a quantum dot light-emitting diode (QLED), etc. For example, in this embodiment, the display can be used to display the interface required by the sensing device 1000. Exemplarily, the sensing device 1000 implements display functions through a graphics processing unit (GPU), a display, and an application processor. The GPU is a microprocessor for image processing, connected to the display and the application processor. The GPU performs mathematical and geometric calculations for graphics rendering. The chip system 1100 may include one or more GPUs that execute program instructions to generate or modify display information.

[0414] The camera 1630 is used to acquire images, videos, etc.

[0415] Understandable Figure 14 The structure shown does not constitute a specific limitation on the sensing device 1000; the specific structure of the transmitting end and / or receiving end can be referred to Figure 14 As shown. In some embodiments, the sensing device 1000 may also include a ratio Figure 14 This could mean having more or fewer components, combining some components, separating some components, or having different component arrangements. Or, Figure 14 Some of the components shown can be implemented in hardware, software, or a combination of both. The transmitter and / or receiver can be in... Figure 14 The components were added or removed based on the given structure.

[0416] Figure 15 This is a schematic block diagram of the sensing device 2000 provided in an embodiment of this application. Figure 15As shown, the sensing device 2000 may include a baseband unit 2100, which can communicate with external devices via a cellular RF transceiver 2200 (e.g., if the sensing device 2000 is a transmitter, the baseband unit 2100 can communicate with a receiver via the cellular RF transceiver 2200; or, if the sensing device 2000 is a receiver, the baseband unit 2100 can communicate with a transmitter via the cellular RF transceiver 2200).

[0417] Baseband unit 2100 may include computer-readable medium / memory. Baseband unit 2100 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory. When executed by baseband unit 2100, the software causes baseband unit 2100 to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by baseband unit 2100 during software execution.

[0418] The baseband unit 2100 further includes a receiving unit 2010, a management unit 2020, and a transmitting unit 2030. The management unit 2020 includes one or more of these units. Figure 15 The sub-units shown (e.g., encoding units and / or decoding units). Units within the management unit 2010 may be stored in a computer-readable medium / memory and / or configured as hardware within the baseband unit 2100. The receiving unit 2010 and the transmitting unit 2030 may be referred to as transceiver units.

[0419] When the sensing device 2000 is used to implement the function of the transmitting end in the above method embodiments, the receiving unit 2010 is used to execute the receiving step of the transmitting end, the transmitting unit 2030 is used to execute the transmitting step of the transmitting end, and the management unit 2020 is used to execute the processing step of the transmitting end.

[0420] For example, when the device 2000 is used to perform Figure 8 or Figure 12 When the method is in use, the receiving unit 2010 can be used to execute the step of receiving information in the method; the management unit 2020 can be used to execute the processing step in the method; and the sending unit 2030 can be used to execute the step of sending information in the method.

[0421] When the sensing device 2000 is used to implement the functions of the receiving end in the above method embodiments, the receiving unit 2010 is used to perform the receiving step of the receiving end, the sending unit 2030 is used to perform the sending step of the receiving end, and the management unit 2020 is used to perform the processing step of the receiving end.

[0422] For example, when the device 2000 is used to perform Figure 8 or Figure 12When the method is in use, the receiving unit 2010 can be used to execute the step of receiving information in the method; the management unit 2020 can be used to execute the processing step in the method; and the sending unit 2030 can be used to execute the step of sending information in the method.

[0423] For a more detailed description of the receiving unit 2010, the management unit 2020, and the sending unit 2030, please refer to the relevant descriptions in the above method embodiments, which will not be repeated here.

[0424] Figure 16 This is a schematic block diagram of a chip system 3000 provided in an embodiment of this application. Exemplarily, the chip system includes, but is not limited to: a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip or a system-in-package (SIP) chip containing a modem core.

[0425] like Figure 16 As shown, the chip system (or processing system) includes a processor 3100, a memory 3200, and an input / output interface 3300.

[0426] The processor 3100 can be a processing circuit in a chip system (including at least one processor, such as...). Figure 8 (Shown as processor 1 and processor 2, etc.). Processor 3100 can be coupled to memory 3200, calling instructions in memory 3200, so that the chip system can implement the methods and functions of the various embodiments of this application. Input / output interface 3300 can be an input / output circuit in the chip system, outputting information processed by the chip system, or inputting data or signaling information to be processed into the chip system for processing.

[0427] As one approach, the chip system is used to implement the operations performed by the sending or receiving end in the various method embodiments described above.

[0428] For example, processor 3100 is used to implement the processing-related operations performed by the sending end or the receiving end in the above method embodiments, as described in the foregoing embodiments; input / output interface 3300 is used to implement the sending and / or receiving-related operations performed by the sending end or the receiving end in the above method embodiments, as described in the foregoing embodiments.

[0429] Figure 17 This is a schematic block diagram of another chip system 4000 provided in an embodiment of this application. Figure 17As shown, the chip system (or processing system) includes an input / output interface 4100 and logic circuitry 4200. The input / output interface 4100 can be an input / output circuit within the chip system, outputting processed information or inputting data or signaling information to be processed into the chip system for processing; details can be found in the descriptions of the preceding embodiments. The logic circuitry 4200 is used to execute the aforementioned sensing method; details can also be found in the descriptions of the preceding embodiments.

[0430] As one approach, the chip system is used to implement the operations performed by the sending or receiving end in the various method embodiments described above.

[0431] For example, logic circuit 4200 is used to implement processing-related operations performed by the sending end or the receiving end in the above method embodiments; input / output interface 4100 is used to implement sending and / or receiving-related operations performed by the sending end or the receiving end in the above method embodiments.

[0432] This application also provides a computer-readable storage medium storing computer instructions for implementing the methods executed by the apparatus in the above-described method embodiments.

[0433] For example, when the computer program is executed by a computer, it enables the computer to implement the methods executed by the sending end or the receiving end in the various embodiments of the above methods.

[0434] This application also provides a computer program product comprising instructions which, when executed by a computer, implement the methods performed by the sending end or the receiving end in the above-described method embodiments.

[0435] This application also provides a sensing system, including the aforementioned transmitter and / or receiver.

[0436] The explanations and beneficial effects of the relevant contents in any of the devices provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0437] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0438] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

[0439] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0440] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0441] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0442] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0443] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sensing method, characterized in that, include: A first signal is determined based on a second signal and a first shaping filter. 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. Wherein, 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 among 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 to sense services.

2. The method according to claim 1, characterized in that, The method further includes: A third signal is determined based on the second signal and the second shaping filter; The absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to the second value. Wherein, the second spectrum is the spectrum of the second shaping filter or the spectrum of the third signal, the second center frequency is the center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is the frequency corresponding to the j-th second frequency domain unit among 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 communication services.

3. The method according to claim 2, characterized in that, 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 3dB.

5. The method according to any one of claims 1 to 4, characterized in that, 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, 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 the third value. Wherein, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

6. A sensing method, characterized in that, include: A first signal is received on a first frequency domain resource. The first signal is used to sense services. The first signal is obtained based on a second signal and a first shaping filter. 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. Wherein, 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 among the M first frequency domain units, M is a positive integer, 1≤i≤M, or 0≤i<M, i is an integer; Based on the first signal, the sensing parameters are obtained.

7. The method according to claim 6, characterized in that, The method further includes: A third signal is received on a second frequency domain resource. The third signal is used for communication services. The third signal is obtained based on a second signal and a second shaping filter. The absolute value of the difference between the power of the second spectrum at the second center frequency and the power of the second spectrum at the second frequency is less than or equal to the second value. Wherein, the second spectrum is the spectrum of the second shaping filter or the spectrum of the third signal, the second center frequency is the center frequency of the second frequency domain resource, the second frequency domain resource includes N second frequency domain units, the second frequency is the frequency corresponding to the j-th second frequency domain unit among the N second frequency domain units, N is a positive integer, 1≤j≤N, or 0≤j<N, j is an integer.

8. The method according to claim 7, characterized in that, 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 according to any one of claims 6 to 9, characterized in that, 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, 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 the third value. Wherein, the first threshold is less than the bandwidth of the first frequency domain resource, and the third value is less than the first value.

11. A sensing method, characterized in that, The method includes: Receive or send first information, the first information being used to indicate the values ​​of M elements corresponding to the first shaping filter, where M is a positive integer; A first signal is transmitted on a first frequency domain resource. The first signal is obtained based on the values ​​of the second signal and the M elements corresponding to the first shaping filter. The first signal is used to sense services, and M represents the number of first frequency domain units included in the first frequency domain resource.

12. The method according to claim 11, characterized in that, The first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter.

13. The method according to claim 12, characterized in that, The first parameter includes the values ​​of the Q elements corresponding to the 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, where Q is a positive integer.

14. The method according to claim 12, characterized in that, 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.

15. The method according to claim 11, characterized in that, 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 includes: Receive or send a second message; Wherein, the second information includes first indication information, which is used to indicate a waveform or a set of waveforms, and the first shaping filter is associated with the waveform or the set of waveforms; and / or, The second information includes second indication information, which indicates a sequence or set of sequences, wherein the first shaping filter is associated with the sequence or set of sequences; and / or, The second information includes third indication information, which is used to indicate that the first shaping filter is used for sensing services.

17. The method according to any one of claims 11 to 16, characterized in that, 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 distance resolution, minimum interference suppression capability, or the 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 includes: Receive or send a fourth message, which is used to indicate the first frequency domain resource.

19. A sensing method, characterized in that, The method includes: Send or receive first information, the first information being used to indicate the values ​​of M elements corresponding to the first shaping filter, where M is a positive integer; A first signal is received on a first frequency domain resource. The first signal is obtained based on the values ​​of M elements corresponding to the second signal and the first shaping filter. The first signal is used to sense services. M represents the number of first frequency domain units included in the first frequency domain resource.

20. The method according to claim 19, characterized in that, The first information includes a first parameter, which is used to determine the values ​​of the M elements corresponding to the first shaping filter.

21. The method according to claim 20, characterized in that, The first parameter includes the values ​​of the Q elements corresponding to the 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, where Q is a positive integer.

22. The method according to claim 20, characterized in that, 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.

23. The method according to claim 19, characterized in that, The first information includes the values ​​of the 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 includes: Sending or receiving a second message; Wherein, the second information includes first indication information, which is used to indicate a waveform or a set of waveforms, and the first shaping filter is associated with the waveform or the set of waveforms; and / or, The second information includes second indication information, which indicates a sequence or set of sequences, wherein the first shaping filter is associated with the sequence or set of sequences; and / or, The second information includes third indication information, which is used to indicate that the first shaping filter is used for sensing services.

25. The method according to any one of claims 19 to 24, characterized in that, The method further includes: Receive or send 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 distance resolution, minimum interference suppression capability, or the 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 includes: Send or receive fourth information, which is used to indicate the first frequency domain resource.

27. A sensing device, characterized in that, It includes modules or units for performing the method of any one of claims 1 to 5; or, it includes modules or units for performing the method of any one of claims 6 to 10; or, it includes modules or units for performing the method of any one of claims 11 to 18; or, it includes modules or units for performing the method of any one of claims 19 to 26.

28. A sensing device, characterized in that, The device includes a processor configured to cause the sensing device to perform the method of any one of claims 1 to 5; or, configured to cause the sensing device to perform the method of any one of claims 6 to 10; or, configured to cause the sensing device to perform the method of any one of claims 11 to 18; or, configured to cause the sensing device to perform the method of any one of claims 19 to 26.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on the sensing device, cause the sensing device to perform the method as described in any one of claims 1 to 5; or cause the sensing device to perform the method as described in any one of claims 6 to 10; or cause the sensing device to perform the method as described in any one of claims 11 to 18; or cause the sensing device to perform the method as described in any one of claims 19 to 26.

30. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when executed on a sensing device, cause the sensing device to perform the method as described in any one of claims 1 to 5; or cause the sensing device to perform the method as described in any one of claims 6 to 10; or cause the sensing device to perform the method as described in any one of claims 11 to 18; or cause the sensing device to perform the method as described in any one of claims 19 to 26.

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