Signal transmission method, communication apparatus, and storage medium

Abstract

Disclosed in embodiments of the present application are a signal transmission method, a communication apparatus, and a storage medium, for use in implementing the transmission and reception of a sensing signal and determining information of a sensing target. The method comprises: determining M1 phases and / or M2 frequencies of a first sensing signal, the first sensing signal being used for sensing a sensing target; and sending the first sensing signal. In the embodiments of the present application, during a sensing process, there are always sensing signals with significant changes in amplitude, signal strength, and / or phase. Therefore, by determining M1 phases and / or M2 frequencies of each sensing signal, a received signal having a better sensing result can be used in subsequent signal processing to sense the motion of a target, thereby improving the accuracy and reliability of sensing.

Description

A signal transmission method, a communication device and a storage medium

[0001] The present application claims priority to the Chinese patent application No. CN202411104197.3, filed on August 12, 2024, and entitled "A signal transmission method, a communication device and a storage medium", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of communication technology, in particular to a signal transmission method, a communication device and a storage medium. BACKGROUND

[0003] With the large-scale popularity of Internet applications and wireless network devices, people's demand for wireless communication is further increasing. The future communication system will be a system with communication and perception integration, that is, the communication system will not only have stronger communication capability, but also have the ability of perception. The form of communication and perception integration is various, for example, the perception function is completed through the communication signal or the communication is assisted based on the perception result.

[0004] Information is sent from the sending end, passes through the transmission channel and is received at the receiving end. Since the information may change in the transmission channel, it may cause the received information to be different from the sent information. In order to accurately restore the correct information, it is necessary to understand which changes the information has undergone in the transmission process, so the reference signal (RS) is introduced. At present, the reference signal is used for perception services, wherein the perception services include target detection. When the target moves, the amplitude (signal strength) and / or phase of the reference signal fluctuates, and the fluctuation caused by the target moving at different positions is different. The greater the change of signal strength, the more conducive to subsequent signal processing, that is, the better the perception performance.

[0005] However, the reference signal for communication and the reference signal for positioning are defined in the current standard, but the reference signal for perception is not defined. At the same time, since the fluctuation caused by the target moving at different positions is different, when the target moves at some positions, the perception performance is poor. SUMMARY

[0006] The present application provides a signal transmission method, a communication device and a storage medium, which are used to realize the transmission and reception of perception signals and determine the information of the perception target.

[0007] The first aspect of the present application provides a signal transmission method. Optionally, the execution subject of the method can be a first device. The first device can be a network device, or a component or apparatus (e.g., a processor, a chip, or a chip system) applied to the network device, or a logic module or software (e.g., a central unit (CU), a distributed unit (DU), or a radio unit (RU)) capable of realizing all or part of the network device function. The first device can also be a terminal device, or a component or apparatus (e.g., a processor, a chip, or a chip system) applied to the terminal device, or a logic module or software capable of realizing all or part of the terminal device function. Taking the network device as an example, the first device determines M1 phases and / or M2 frequencies of a first sensing signal, and the first sensing signal is used for sensing a sensing target. The first device transmits the first sensing signal, and the first device can also be referred to as a sensing transmitter.

[0008] The second aspect of the present application provides a signal transmission method. Optionally, the execution subject of the method can be a second device. The second device can be a network device, or a component or apparatus (e.g., a processor, a chip, or a chip system) applied to the network device, or a logic module or software (e.g., a CU, a DU, or a RU) capable of realizing all or part of the network device function. The second device can also be a terminal device, or a component or apparatus (e.g., a processor, a chip, or a chip system) applied to the terminal device, or a logic module or software capable of realizing all or part of the terminal device function. Taking the terminal device as an example, the second device determines M1 phases and / or M2 frequencies of a second sensing signal, and the second sensing signal is used for determining information of the sensing target. The second device receives the second sensing signal, and the second device can also be referred to as a sensing receiver.

[0009] In the embodiments of the present application, in the sensing process, there is always a sensing signal with a significant change in amplitude, signal strength, and / or phase. It can be understood that the sensing signal with a more significant change can better reflect the information of the sensing target. However, due to the change of the sensing target position, the channel environment, interference, and the like, in different situations, there is no sensing signal with a certain fixed phase and / or a certain fixed frequency that changes more obviously. However, in multiple sensing signals, or in multiple sub-signals of the sensing signal, there is always one with the most obvious change. Therefore, by determining the M1 phases and / or M2 frequencies of the first sensing signal and the M1 phases and / or M2 frequencies of the second sensing signal, in subsequent signal processing, the sensing result can be used to better receive the signal sensing target motion, thereby improving the accuracy and reliability of sensing.

[0010] In addition, for the perception signal having multiple phases and / or frequencies, more comprehensive perception results can be determined, and based on the rich perception results, the signal perception target motion can be better received, and the accuracy and reliability of the perception can be improved.

[0011] The perception signal can propagate via a path of "perception sending end-perception target-perception receiving end", or via a path of "perception sending end-perception receiving end", or via a path of "perception sending end-interference / environment-perception receiving end". That is, the perception signal can be the above single path, or a combination of the above paths. And the sum signal of the above paths is received at the perception receiving end.

[0012] Regarding the first perception signal and the second perception signal, the first perception signal is sent by the perception sending end, the first perception signal is reflected and / or scattered by the perception target, and finally, the second perception signal is received by the perception receiving end. The change of the second perception signal compared with the first perception signal includes the change caused by the reflection and / or scattering of the perception target, for example, the change in the time domain and / or the frequency domain, and for example, the change in the amplitude and / or the phase, which to some extent reflects the information of the perception target. In the embodiments of the present application, since there is always a received signal with a significant change in amplitude, signal strength and / or phase in the received second perception signal, by determining the M1 phases and / or M2 frequencies of the first perception signal, and the M1 phases and / or M2 frequencies of the second perception signal, in subsequent signal processing, the signal perception target motion can be better received using the perception results, thereby improving the accuracy and reliability of the perception.

[0013] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, the first perception signal is located on M1 frequency domain units, and the M1 phases of the first perception signal include the M1 phases of the first perception signal transmitted on the M1 frequency domain units.

[0014] And / or, the first perception signal is located on M2 frequency domain units, and the M2 frequencies of the first perception signal include the frequencies of the M2 frequency domain units.

[0015] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, the M1 phases of the first perception signal are determined by configuration information of the perception signal, and the configuration information of the perception signal includes at least one of the following: the number of phases M1, the phase difference Δθ, the phase offset θ o or a phase list, M1 is the number of phases, and Δθ is the difference between two adjacent phases.

[0016] In the embodiments of the present application, the configuration information of the sensing signal enables the first device to flexibly determine the M1 phases of the first sensing signal. Furthermore, the second device can determine the information of the sensing target based on the sub-signals of the second sensing signal with obvious amplitude, signal strength and / or phase change according to the M1 phases. Alternatively, the information of the sensing target is determined based on more sensing signal information.

[0017] In some possible implementation manners based on the first aspect or the second aspect of the present application, the M1 phases of the first sensing signal are determined by a phase list; or, the M1 phases of the first sensing signal are determined by the number M1 of phases; or, the M1 phases of the first sensing signal are determined by a phase difference Δθ; or, the M1 phases of the first sensing signal are determined by the number M1 of phases and a phase offset θ o ; or, the M1 phases of the first sensing signal are determined by the phase difference Δθ and the phase offset θ o .

[0018] In some possible implementation manners based on the first aspect or the second aspect of the present application, the phase of the first sensing signal is or, the phase of the first sensing signal is or, the m1th phase of the first sensing signal is (m1-1)π / M1; or, the m1th phase of the first sensing signal is (m1-1)Δθ; or, the m1th phase of the first sensing signal is (m1-1)π / M1+θ o ; or, the m1th phase of the first sensing signal is (m1-1)Δθ+θ o , m1 is an integer greater than or equal to 1 and less than or equal to M1.

[0019] In some possible implementation manners based on the first aspect or the second aspect of the present application, the number M1 of phases and the phase difference Δθ satisfy Δθ=π / M1, or M1=π / Δθ.

[0020] In the embodiments of the present application, when the phase difference Δθ of the first sensing signal is greater than π, the sensing result is similar to Δθ-π and does not bring new effective information. That is, compared with dividing the range from 0 to π of the phase difference into M1 parts, dividing the range from 0 to 2π of the phase difference into M1 parts does not bring new effective information. Therefore, the number M1 of phases and the phase difference Δθ satisfy Δθ=π / M1, or M1=π / Δθ in the embodiments of the present application.

[0021] In some possible implementation manners based on the first aspect or the second aspect of the present application, the number M1 of phases is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy; and / or, the phase difference Δθ is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy.

[0022] In the embodiments of the present application, the sensing resources are configured to be more in line with the business needs, and it is clear that more sensing resources are needed in which case, so that the amplitude, signal strength and / or phase change of the sensing signal caused by the target motion is as large as possible. Further, the sensing business that needs more sensing resources is allocated more resources, and the business that does not need many sensing resources is allocated a small amount of resources, so that the reasonable overhead of the sensing business is guaranteed at the system level. In addition, in the integrated communication and sensing, the sensing business uses the resources that can originally be used for the communication business. The reasonable allocation of sensing resources can reduce the impact on the communication business, thereby ensuring the throughput and reliability of the communication business.

[0023] In some possible implementation manners based on the first aspect or the second aspect of the present application, if the distance resolution is less than or equal to λ / X, the first sensing signal includes at least X different phases; and / or, if the distance resolution is greater than or equal to λ / 2X, the first sensing signal includes at least X different phases, λ is the wavelength of the first sensing signal, and X is less than or equal to M1.

[0024] In the embodiments of the present application, based on different distance resolutions, the corresponding number of phases M1 can be set, and the technical effect of configuring the sensing resources to be more in line with the business needs can also be achieved.

[0025] In some possible implementation manners based on the first aspect or the second aspect of the present application, the M2 frequencies of the first sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number of frequencies M2, the frequency difference Δf, the sensing bandwidth BW s , the frequency offset f o or the frequency position information, and Δf is the difference between two adjacent frequencies.

[0026] In the embodiments of the present application, through the configuration information of the sensing signal, the first device can flexibly determine the M2 frequencies of the first sensing signal. Further, the second device can determine the information of the sensing target based on the sub-signals of the second sensing signal whose amplitude, signal strength and / or frequency change significantly, or based on more sensing signal information.

[0027] In some possible implementation manners based on the first aspect or the second aspect of the present application, the M2 frequencies of the first sensing signal are determined by the frequency position information; or, the M2 frequencies of the first sensing signal are determined by the number of frequencies M2 and the frequency difference Δf; or, the M2 frequencies of the first sensing signal are determined by the number of frequencies M2 and the sensing bandwidth BW s ; or, the M2 frequencies of the first sensing signal are determined by the number of frequencies M2, the frequency difference Δf and the frequency offset f odetermined; or, the M2 frequencies of the first sensing signal are determined by the number of frequencies M2, the sensing bandwidth BW s and the frequency offset f o .

[0028] In some possible implementation manners based on the first aspect or the second aspect of the present application, the M2 frequencies of the first sensing signal are located on both sides of the partial bandwidth BWP; or, the m2th frequency of the first sensing signal is (m2-1)Δf; or, the m2th frequency of the first sensing signal is (m2-1)BW s / M2; or, the m2th frequency of the first sensing signal is (m2-1)Δf+f o ; or, the m2th frequency of the first sensing signal is (m2-1)BW s / M2+f o , where m2 is an integer greater than or equal to 1 and less than or equal to M2.

[0029] In some possible implementation manners based on the first aspect or the second aspect of the present application, the number of frequencies M2, the frequency difference Δf and the sensing bandwidth BW s satisfy any one of the following conditions: Δf=BW s / M2, M2=BW s / Δf or BW s =M2*Δf.

[0030] In the embodiments of the present application, the frequency resources of the first sensing signal are comb-shaped distributed in the sensing bandwidth, which can overcome the frequency selective fading of the channel as much as possible. The sub-signals of the first sensing signal at certain frequencies can better receive the signal sensing target motion, and improve the accuracy and reliability of sensing.

[0031] In some possible implementation manners based on the first aspect or the second aspect of the present application, the number of frequencies M2 is determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the frequency difference is determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the sensing bandwidth is determined by any one of the sensing service level, the channel quality measurement result or the signal energy.

[0032] In the embodiments of the present application, the importance of the sensing service and the degree of change of the channel environment are determined in which cases more sensing resources are needed, so that the amplitude, signal strength and / or phase change of the sensing signal caused by the target motion are as large as possible. The technical effect of configuring the sensing resources more in line with the service demand can also be achieved.

[0033] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device or the second device receives the configuration information of the sensing signal from the first network device.

[0034] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device or the second device further sends sensing request information to the first network device, and the sensing request information comprises sensing requirements of the first device.

[0035] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device further sends configuration information of the sensing signal to the second device.

[0036] In the embodiments of the present application, the sensing signal is configured flexibly based on the flow of explicit signaling interaction, and the sensing resource configured is more in line with the requirements of the service, thereby guaranteeing the reliability of the sensing service. In addition, the configuration mode of the sensing signal can be very flexible, which can be configured by the first device, the second device and / or the network device, and through the signaling interaction, the requirements of the sensing service can be better met.

[0037] In the embodiments of the present application, the sensing signal can also be configured based on the request. Different sensing services have different sensing requirements. The sensing signal configured based on the request can better balance the requirements of the sensing service and the sensing resource. In addition, the request mode of the sensing signal can be very flexible, which can be requested by the first device, the second device and / or the network device, and through the signaling interaction, the requirements of the sensing service can be better met.

[0038] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device sends the first sensing signal on Y time domain units, Y being a positive integer, wherein: on the Y time domain units, the phase of the first sensing signal located on the same frequency domain unit is unchanged; and / or on the Y time domain units, the frequency domain unit of the first sensing signal is unchanged.

[0039] In the embodiments of the present application, the second device needs to determine the information of the sensing target according to the accumulation of the second sensing signal received in a period of time. There are many reasons for the change of the sensing signal information, in addition to the movement of the sensing target, such as the change of the frequency domain characteristics of the signal / channel, the phase mutation and the like. If the frequency domain unit is changed in this period of time, the second device can not distinguish whether the sensing result is caused by the change of the frequency domain characteristics or the change of the target movement. Therefore, the frequency domain unit of the first sensing signal is designed to be unchanged and / or the phase is designed to be unchanged, so as to ensure that the second sensing signal reflects the movement of the sensing target as much as possible.

[0040] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second sensing signal is located on M1 frequency domain units, and the M1 phases of the second sensing signal include M1 phases of the second sensing signal transmitted on the M1 frequency domain units; and / or, the second sensing signal is located on M2 frequency domain units, and the M2 frequencies of the second sensing signal include frequencies of the M2 frequency domain units.

[0041] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second sensing signal includes a signal received after the first sensing signal is reflected and / or scattered by the sensing target; or, the second sensing signal is the first sensing signal, and the first sensing signal is used for sensing the sensing target.

[0042] In some possible implementation manners based on the first aspect or the second aspect of the present application, the M1 phases of the second sensing signal are determined by configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: a phase number M1, a phase difference Δθ, a phase offset θ o , or a phase list, where M1 is the number of phases, and Δθ is a difference between two adjacent phases.

[0043] In the embodiments of the present application, the configuration information of the sensing signal enables the second device to flexibly determine the M1 phases of the second sensing signal. Further, the second device can determine the information of the sensing target based on a sub-signal of the second sensing signal with obvious amplitude, signal strength and / or phase change, or based on more sensing signal information.

[0044] In some possible implementation manners based on the first aspect or the second aspect of the present application, the M1 phases of the second sensing signal are determined by a phase list; or, the M1 phases of the second sensing signal are determined by a phase number M1; or, the M1 phases of the second sensing signal are determined by a phase difference Δθ; or, the M1 phases of the second sensing signal are determined by a phase number M1 and a phase offset θ o ; or, the M1 phases of the second sensing signal are determined by a phase difference Δθ and a phase offset θ o .

[0045] In some possible implementation manners based on the first aspect or the second aspect of the present application, the phase of the second sensing signal is , or the phase of the second sensing signal is , or the m1th phase of the second sensing signal is (m1-1)π / M1; or, the m1th phase of the second sensing signal is (m1-1)Δθ; or, the m1th phase of the second sensing signal is (m1-1)π / M1+θ o ; or, the m1th phase of the second sensing signal is (m1-1)Δθ+θ o, m1 is an integer greater than or equal to 1 and less than or equal to M1.

[0046] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, the phase number M1 and the phase difference Δθ satisfy: Δθ = π / M1, or M1 = π / Δθ.

[0047] In the embodiments of the present application, when the phase difference Δθ of the second sensing signal is greater than π, the sensing result is similar to Δθ-π and does not bring new effective information. That is, compared with dividing the range of phase difference from 0 to π into M1 parts, dividing the range of phase difference from 0 to 2π into M1 parts does not bring new effective information. Therefore, the embodiments of the present application design the phase number M1 and the phase difference Δθ to satisfy Δθ = π / M1 or M1 = π / Δθ.

[0048] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, the phase number M1 is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy; and / or, the phase difference is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy.

[0049] In the embodiments of the present application, by configuring the sensing resources more in line with the service demand, it is clear that more sensing resources are needed in which case, so that the amplitude, signal strength and / or phase change of the sensing signal caused by the target motion is as large as possible. Further, the sensing service that needs more sensing resources is allocated more resources, and the service that does not need many sensing resources is allocated a small amount of resources, so that the reasonable overhead of the sensing service is guaranteed at the system level. In addition, in the integrated communication and sensing, the sensing service uses the resources that can be originally used for the communication service. The reasonable allocation of sensing resources can reduce the impact on the communication service, thereby ensuring the throughput and reliability of the communication service.

[0050] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, if the distance resolution is less than or equal to λ / X, the second sensing signal includes at least X different phases; and / or, if the distance resolution is greater than or equal to λ / 2X, the first sensing signal includes at least X different phases, λ is the wavelength of the second sensing signal.

[0051] In the embodiments of the present application, based on different distance resolutions, the corresponding phase number M1 can be set, and the technical effect of configuring the sensing resources more in line with the service demand can also be achieved.

[0052] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, the M2 frequencies of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes: the frequency number M2, the frequency difference Δf, the sensing bandwidth BWs , a frequency offset f o , or at least one of the frequency position information, and Δf is a difference between two adjacent frequencies.

[0053] In the embodiments of the present application, through the configuration information of the sensing signal, the second device can flexibly determine the M2 frequencies of the second sensing signal. Further, the second device can determine the information of the sensing target based on the sub-signals of the second sensing signal with obvious amplitude, signal strength and / or frequency change according to the M2 frequencies. Or, determine the information of the sensing target based on more sensing signal information.

[0054] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, the M2 frequencies of the second sensing signal are determined by the frequency position information; or, the M2 frequencies of the second sensing signal are determined by the frequency number M2 and the frequency difference Δf; or, the M2 frequencies of the second sensing signal are determined by the frequency number M2 and the sensing bandwidth BW s ; or, the M2 frequencies of the second sensing signal are determined by the frequency number M2, the frequency difference Δf and the frequency offset f o ; or, the M2 frequencies of the second sensing signal are determined by the frequency number M2, the sensing bandwidth BW s and the frequency offset f o .

[0055] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, the M2 frequencies of the second sensing signal are located on both sides of the partial bandwidth BWP; or, the m2th frequency of the second sensing signal is (m2-1)Δf; or, the m2th frequency of the second sensing signal is (m2-1)BW s / M2; or, the m2th frequency of the second sensing signal is (m2-1)Δf+f o ; or, the m2th frequency of the second sensing signal is (m2-1)BW s / M2+f o , m2 is an integer greater than or equal to 1 and less than or equal to M2.

[0056] Based on the first aspect or the second aspect of the present application, in some possible implementation manners, the frequency number M2, the frequency difference Δf and the sensing bandwidth BW s satisfy any one of Δf=BW s / M2, M2=BW s / Δf or BW s =M2*Δf.

[0057] In the embodiments of the present application, the frequency resources of the second sensing signal are comb-shaped distributed in the sensing bandwidth, which can overcome the frequency selective fading of the channel as much as possible. The sub-signals of the second sensing signal at certain frequencies can better receive the signal sensing target motion, and improve the accuracy and reliability of sensing.

[0058] In some possible implementation manners based on the first aspect or the second aspect of the present application, the number M2 of frequencies is determined by any one of a sensing service level, a channel quality measurement result or a signal energy; and / or, the frequency difference is determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the sensing bandwidth is determined by any one of the sensing service level, the channel quality measurement result or the signal energy.

[0059] In the embodiments of the present application, the importance of the sensing service and the degree of change of the channel environment are determined in which cases more sensing resources are needed, so that the amplitude, signal strength and / or phase change of the sensing signal caused by the target motion are as large as possible. The technical effect of configuring the sensing resources that are more in line with the service demand can also be achieved.

[0060] In some possible implementation manners based on the first aspect or the second aspect of the present application, the information of the sensing target includes one or more of motion information of the sensing target, motion change information of the sensing target, distance information of the sensing target, speed information of the sensing target, and angle information of the sensing target.

[0061] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second device receives the second sensing signal on Y time domain units, Y being a positive integer, wherein: on the Y time domain units, the phase of the second sensing signal located on the same frequency domain unit is unchanged; and / or, on the Y time domain units, the frequency domain unit of the second sensing signal is unchanged.

[0062] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device or the second device can determine the sensing signal information corresponding to the non-zero motion frequency according to the second sensing signal on the Y time domain units and the M1 and / or M2 frequency domain units. The first device or the second device determines the information of the sensing target according to the sensing signal information corresponding to the non-zero motion frequency.

[0063] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device or the second device performs fast Fourier transform (FFT) processing on the signal strength and / or phase of the M1 or M2 second sensing signals; and the first device or the second device obtains the sensing result of the sensing target according to the second sensing signal with a large peak value in the M1 or M2 second sensing signals after the FFT processing.

[0064] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device or the second device performs multiple signal classification (MUSIC) processing on the signal strength and / or phase of the M1 or M2 second sensing signals; and the first device or the second device obtains the sensing result of the sensing target according to a second sensing signal with a large peak value from the M1 or M2 second sensing signals after FFT processing.

[0065] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device or the second device performs power spectral density (PSD) processing on the signal strength and / or phase of the M1 or M2 second sensing signals; and the first device or the second device obtains the sensing result of the sensing target according to a second sensing signal with a large peak value from the M1 or M2 second sensing signals after PSD processing.

[0066] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second device performs FFT processing on the received second sensing signals to obtain frequency domain complex signals. For example, the amplitude information Amp and the phase information Ang of the second sensing signals on a first frequency domain unit can be obtained, and the first frequency domain unit belongs to the M1 and / or M2 frequency domain units. The frequency domain complex signal of the second sensing signal includes a complex signal on a corresponding frequency domain unit.

[0067] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second device receives Y second sensing signals on Y time domain units, s m (t) represents a frequency domain complex signal on the mth frequency domain unit on the Y time domain units. Wherein t represents a time sequence on the Y time domain units, and t takes an integer from 0 to Y-1, or t takes an integer from 1 to Y. m takes an integer from 1 to M1 or M2, or m takes an integer from 0 to M1-1 or M2-1.

[0068] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second device can further perform FFT processing on the amplitude information Amp and the phase information Ang of the sub-signals of the second sensing signal carried on the M1 and / or M2 frequency domain units to obtain the first sensing information; or perform multiple signal classification algorithm (MUSIC) processing on the amplitude information Amp and the phase information Ang of the sub-signals of the second sensing signal carried on the M1 and / or M2 frequency domain units to obtain the first sensing information; or perform power spectral density (PSD) processing on the amplitude information Amp and the phase information Ang of the sub-signals of the second sensing signal carried on the M1 and / or M2 frequency domain units to obtain the first sensing information.

[0069] In some possible implementation manners based on the first aspect or the second aspect of the present application, on the Y time domain units, the second sensing signal carried on each frequency domain unit can determine 1 amplitude information Amp m (t) and / or 1 phase information Ang m (t). The second sensing signals on the M2 frequency domain units can determine M2 amplitude information Amp m (t) and / or M2 phase information Ang m (t); or the second sensing signals on the M1 frequency domain units can determine M1 amplitude information Amp m (t) and / or M2 phase information Ang m (t).

[0070] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second device performs FFT processing on the amplitude information Amp m (t) and / or the phase information Ang m (t) of the Y time domain units on each frequency domain unit; or performs MUSIC processing on the amplitude information Amp m (t) and / or the phase information Ang m (t) of the Y time domain units on each frequency domain unit; or performs PSD processing on the amplitude information Amp m (t) and / or the phase information Ang m (t) of the Y time domain units on each frequency domain unit.

[0071] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second device performs FFT processing, MUSIC processing or PSD processing on amplitudes of the second sensing signals on the Y time domain units and the first frequency domain unit to obtain amplitude information of the second sensing signals; or performs FFT processing, MUSIC processing or PSD processing on signal strengths of the second sensing signals on the Y time domain units and the first frequency domain unit to obtain signal strength information of the second sensing signals; and the second device performs FFT processing, MUSIC processing or PSD processing on phases of the second sensing signals on the Y time domain units and the first frequency domain unit to obtain phase information of the second sensing signals.

[0072] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first sensing information includes sensing signal information corresponding to different motion frequencies. The motion frequencies are associated with sensing target speed or motion change information of the sensing target.

[0073] In the embodiments of the present application, the change of the second sensing signals on the Y time domain units reflects the motion frequency of the sensing target. Therefore, the motion frequency can be determined by the method of FFT processing, MUSIC processing or PSD processing. The peak value of the FFT processing, MUSIC processing or PSD processing corresponds to the motion frequency of the sensing target.

[0074] In some possible implementation manners based on the first aspect or the second aspect of the present application, the maximum value in the sensing signal information corresponding to the non-zero motion frequency is a first value, and the motion frequency corresponding to the first value is a first motion frequency. The first device or the second device can determine the information of the sensing target according to the first motion frequency.

[0075] In some possible implementation manners based on the first aspect or the second aspect of the present application, the sensing signal information is determined according to the second sensing signals on the Y time domain units and the first frequency domain unit, and the first frequency domain unit belongs to M1 and / or M2 frequency domain units.

[0076] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first value is a maximum value of the first sensing information, the first sensing information is sensing signal information determined according to the first frequency domain unit, the first sensing information belongs to M1 and / or M2 sensing signal information determined according to M1 and / or M2 frequency domain units, and the M1 and / or M2 sensing signal information are all sensing signal information corresponding to non-zero motion frequencies.

[0077] In some possible implementation manners based on the first aspect or the second aspect of the present application, in the maximum value of the information of the M1 or M2 non-zero motion frequency corresponding perceptual signals: the second perceptual signal corresponding to the maximum signal energy is the first perceptual information; or the second perceptual signal corresponding to the maximum signal amplitude variance is the first perceptual information; or the second perceptual signal corresponding to the maximum signal amplitude standard deviation is the first perceptual information; or the second perceptual signal corresponding to the maximum signal phase variance is the first perceptual information; or the second perceptual signal corresponding to the maximum signal phase standard deviation is the first perceptual information; or the maximum value in the perceptual signal information is the first perceptual information.

[0078] In some possible implementation manners based on the first aspect or the second aspect of the present application, in the maximum value of the information of the M1 or M2 non-zero motion frequency corresponding perceptual signals: the second perceptual signal corresponding to the maximum signal energy is the first perceptual information; or the second perceptual signal corresponding to the maximum signal amplitude variance is the first perceptual information; or the second perceptual signal corresponding to the maximum signal amplitude standard deviation is the first perceptual information; or the second perceptual signal corresponding to the maximum signal phase variance is the first perceptual information; or the second perceptual signal corresponding to the maximum signal phase standard deviation is the first perceptual information.

[0079] In some possible implementation manners based on the first aspect or the second aspect of the present application, in the maximum value of the information of the M1 or M2 non-zero motion frequency corresponding perceptual signals: the second perceptual signal corresponding to the maximum signal energy is the first value; or the second perceptual signal corresponding to the maximum signal amplitude variance is the first value; or the second perceptual signal corresponding to the maximum signal amplitude standard deviation is the first value; or the second perceptual signal corresponding to the maximum signal phase variance is the first value; or the second perceptual signal corresponding to the maximum signal phase standard deviation is the first value; or the maximum value in the perceptual signal information is the first value.

[0080] In some possible implementation manners based on the first aspect or the second aspect of the present application, in the maximum value of the sensing signal information corresponding to the M1 or M2 non-zero motion frequencies, the sensing signal information corresponding to the sub-signal of the second sensing signal with the maximum signal energy is the first value; or the sensing signal information corresponding to the sub-signal of the second sensing signal with the maximum variance of the signal amplitude is the first value; or the sensing signal information corresponding to the sub-signal of the second sensing signal with the maximum standard deviation of the signal amplitude is the first value; or the sensing signal information corresponding to the sub-signal of the second sensing signal with the maximum variance of the signal phase is the first value; or the sensing signal information corresponding to the sub-signal of the second sensing signal with the maximum standard deviation of the signal phase is the first value.

[0081] In some possible implementation manners based on the first aspect or the second aspect of the present application, the first device or the second device receives configuration information of the sensing signal from the first network device; or receives configuration information of the sensing signal from the first device.

[0082] In some possible implementation manners based on the first aspect or the second aspect of the present application, the second device sends configuration information of the sensing signal to the first device.

[0083] In the embodiments of the present application, the sensing signal is configured flexibly based on the service through the explicit signaling interaction process, the sensing resource configured is more in line with the service demand, the reliability of the sensing service is ensured, and the configuration mode of the sensing signal can be very flexible, which can be configured by the first device, the second device and / or the network device, and the signaling interaction can better meet the demand of the sensing service.

[0084] The third aspect of the present application provides a communication apparatus, comprising:

[0085] The processing module is configured to determine M1 phases and / or M2 frequencies of the first sensing signal, the first sensing signal being used for sensing a sensing target.

[0086] The interface module is configured to send the first sensing signal.

[0087] The fourth aspect of the present application provides a communication apparatus, comprising:

[0088] The processing module is configured to determine M1 phases and / or M2 frequencies of the second sensing signal, the second sensing signal being used for determining information of the sensing target.

[0089] The interface module is configured to receive the second sensing signal.

[0090] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the first sensing signal is located on M1 frequency domain units, and the M1 phases of the first sensing signal include M1 phases of the first sensing signal transmitted on the M1 frequency domain units.

[0091] And / or, the first sensing signal is located on M2 frequency domain units, and the M2 frequencies of the first sensing signal include the frequencies of the M2 frequency domain units.

[0092] According to the third aspect or the fourth aspect of the present application, in some possible implementation manners, the M1 phases of the first sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ o , M1 is the number of phases, and Δθ is the difference between two adjacent phases.

[0093] In the embodiments of the present application, through the configuration information of the sensing signal, the first device can flexibly configure the M1 phases of the first sensing signal.

[0094] According to the third aspect or the fourth aspect of the present application, in some possible implementation manners, the M1 phases of the first sensing signal are determined by the phase list; or, the M1 phases of the first sensing signal are determined by the number M1 of phases; or, the M1 phases of the first sensing signal are determined by the phase difference Δθ; or, the M1 phases of the first sensing signal are determined by the number M1 of phases and the phase offset θ o ; or, the M1 phases of the first sensing signal are determined by the phase difference Δθ and the phase offset θ o .

[0095] According to the third aspect or the fourth aspect of the present application, in some possible implementation manners, the phase of the first sensing signal is , or the phase of the first sensing signal is , or the m1th phase of the first sensing signal is (m1-1)π / M1; or, the m1th phase of the first sensing signal is (m1-1)Δθ; or, the m1th phase of the first sensing signal is (m1-1)π / M1+θ o ; or, the m1th phase of the first sensing signal is (m1-1)Δθ+θ o , m1 is an integer greater than or equal to 1 and less than or equal to M1.

[0096] According to the third aspect or the fourth aspect of the present application, in some possible implementation manners, the number M1 of phases and the phase difference Δθ satisfy Δθ=π / M1, or M1=π / Δθ.

[0097] According to the third aspect or the fourth aspect of the present application, in some possible implementation manners, the number M1 of phases is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy; and / or, the phase difference is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy.

[0098] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, if the distance resolution is less than or equal to λ / X, the first sensing signal includes at least X different phases; and / or, if the distance resolution is greater than or equal to λ / 2X, the first sensing signal includes at least X different phases, λ is a wavelength of the first sensing signal, and X is less than or equal to M1.

[0099] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M2 frequencies of the first sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: a frequency number M2, a frequency difference Δf, a sensing bandwidth BW s , a frequency offset f o , or frequency position information, and Δf is a difference between two adjacent frequencies.

[0100] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M2 frequencies of the first sensing signal are determined by the frequency position information; or, the M2 frequencies of the first sensing signal are determined by the frequency number M2 and the frequency difference Δf; or, the M2 frequencies of the first sensing signal are determined by the frequency number M2 and the sensing bandwidth BW s ; or, the M2 frequencies of the first sensing signal are determined by the frequency number M2, the frequency difference Δf and the frequency offset f o ; or, the M2 frequencies of the first sensing signal are determined by the frequency number M2, the sensing bandwidth BW s , and the frequency offset f o .

[0101] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M2 frequencies of the first sensing signal are located on both sides of the partial bandwidth BWP; or, the m2th frequency of the first sensing signal is (m2-1)Δf; or, the m2th frequency of the first sensing signal is (m2-1)BW s / M2; or, the m2th frequency of the first sensing signal is (m2-1)Δf+f o ; or, the m2th frequency of the first sensing signal is (m2-1)BW s / M2+f o , m2 is an integer greater than or equal to 1 and less than or equal to M2.

[0102] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the frequency number M2, the frequency difference Δf and the sensing bandwidth BW s satisfy any one of the following: Δf = BW s / M2, M2 = BW s / Δf or BW s =M2*Δf.

[0103] In the embodiments of the present application, the configuration information of the sensing signal enables the first device to flexibly configure the M2 frequencies of the first sensing signal.

[0104] Based on the third aspect or the fourth aspect of the present application, in some possible implementation manners, the number of frequencies M2 is determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the frequency difference is determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the sensing bandwidth is determined by any one of the sensing service level, the channel quality measurement result or the signal energy.

[0105] Based on the third aspect or the fourth aspect of the present application, in some possible implementation manners, the first device or the second device receives the configuration information of the sensing signal from the first network device.

[0106] Based on the third aspect or the fourth aspect of the present application, in some possible implementation manners, the first device or the second device further sends sensing request information to the first network device, and the sensing request information includes the sensing requirement of the first device.

[0107] Based on the third aspect or the fourth aspect of the present application, in some possible implementation manners, the first device further sends the configuration information of the sensing signal to the second device.

[0108] Based on the third aspect or the fourth aspect of the present application, in some possible implementation manners, the first device sends the first sensing signal on Y time domain units, Y being a positive integer, wherein: on the Y time domain units, the phase of the first sensing signal located on the same frequency domain unit is unchanged; and / or, on the Y time domain units, the frequency domain unit of the first sensing signal is unchanged.

[0109] Based on the third aspect or the fourth aspect of the present application, in some possible implementation manners, the second sensing signal is located on M1 frequency domain units, and the M1 phases of the second sensing signal include the M1 phases of the second sensing signal transmitted on the M1 frequency domain units; and / or, the second sensing signal is located on M2 frequency domain units, and the M2 frequencies of the second sensing signal include the frequencies of the M2 frequency domain units.

[0110] Based on the third aspect or the fourth aspect of the present application, in some possible implementation manners, the second sensing signal includes a signal received after the first sensing signal is reflected and / or scattered by the sensing target; or, the second sensing signal is the first sensing signal, and the first sensing signal is used for sensing the sensing target.

[0111] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list. o In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list.

[0112] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list. o In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list. o In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list.

[0113] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list. In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list. In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list. o In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list. o In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list.

[0114] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list.

[0115] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list.

[0116] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the M1 phases of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number M1 of phases, the phase difference Δθ, the phase offset θ, and the phase list.

[0117] Based on the third or fourth aspect of this application, in some possible implementations, the M2 frequencies of the second sensing signal are determined by the configuration information of the sensing signal, which includes: the number of frequencies M2, the frequency difference Δf, and the sensing bandwidth BW. s Frequency offset f o Or at least one of the frequency location information, where Δf is the difference between two adjacent frequencies.

[0118] Based on the third or fourth aspect of this application, in some possible embodiments, the M2 frequencies of the second sensing signal are determined by frequency position information; or, the M2 frequencies of the second sensing signal are determined by the number of frequencies M2 and the frequency difference Δf; or, the M2 frequencies of the second sensing signal are determined by the number of frequencies M2 and the sensing bandwidth BW. s Determined; or, the M2 frequencies of the second sensing signal are determined by the number of frequencies M2, the frequency difference Δf, and the frequency offset f. o Determine; or, the M2 frequencies of the second sensing signal are determined by the number of frequencies M2 and the sensing bandwidth BW. s and frequency offset f o Sure.

[0119] Based on the third or fourth aspect of this application, in some possible embodiments, the M2 frequencies of the second sensing signal are located on both sides of a portion of the bandwidth BWP; or, the m2th frequency of the second sensing signal is (m2-1)Δf; or, the m2th frequency of the second sensing signal is (m2-1)BW. s / M2; or, the m2th frequency of the second sensing signal is (m2-1)Δf+f o Or, the m2th frequency of the second sensing signal is (m2-1)BW. s / M2+f o m2 is an integer greater than or equal to 1 and less than or equal to M2.

[0120] Based on the third or fourth aspect of this application, in some possible implementations, the number of frequencies M2, the frequency difference Δf, and the sensing bandwidth BW are... s The following condition must be met: Δf = BW s / M2、M2=BW s / Δf or BW s = any term in M2*Δf.

[0121] Based on the third or fourth aspect of this application, in some possible implementations, the number of frequencies M2 is determined by any one of the sensing service level, channel quality measurement results, or signal energy; and / or, the frequency difference is determined by any one of the sensing service level, channel quality measurement results, or signal energy; and / or, the sensing bandwidth is determined by any one of the sensing service level, channel quality measurement results, or signal energy.

[0122] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the information of the perceived target comprises one or more of motion information of the perceived target, motion change information of the perceived target, distance information of the perceived target, speed information of the perceived target, and angle information of the perceived target.

[0123] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the second device receives the second perceived signal on Y time domain units, Y being a positive integer, wherein: on the Y time domain units, the phase of the second perceived signal located on the same frequency domain unit is unchanged; and / or on the Y time domain units, the frequency domain unit of the second perceived signal is unchanged.

[0124] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the first device or the second device can determine the perceived signal information corresponding to the non-zero motion frequency according to the second perceived signal on the Y time domain units, the M1 and / or M2 frequency domain units. The first device or the second device determines the information of the perceived target according to the perceived signal information corresponding to the non-zero motion frequency.

[0125] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the maximum value in the perceived signal information corresponding to the non-zero motion frequency is a first value, and the motion frequency corresponding to the first value is a first motion frequency. The first device or the second device can determine the information of the perceived target according to the first motion frequency,

[0126] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the perceived signal information is determined according to the second perceived signal on the Y time domain units, the first frequency domain unit, and the first frequency domain unit belongs to the M1 and / or M2 frequency domain units.

[0127] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the first value is the maximum value of the first perceived information, the first perceived information is the perceived signal information determined for the first frequency domain unit, the first perceived information belongs to M1 and / or M2 perceived signal information determined for the M1 and / or M2 frequency domain units, and the M1 and / or M2 perceived signal information are all the perceived signal information corresponding to the non-zero motion frequency.

[0128] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, in the maximum value of the perception signal information corresponding to the M1 or M2 non-zero motion frequencies: the perception signal information corresponding to the second perception signal with the maximum signal energy is the first perception information; or the perception signal information corresponding to the second perception signal with the maximum variance of the signal amplitude is the first perception information; or the perception signal information corresponding to the second perception signal with the maximum standard deviation of the signal amplitude is the first perception information; or the perception signal information corresponding to the second perception signal with the maximum variance of the signal phase is the first perception information; or the perception signal information corresponding to the second perception signal with the maximum standard deviation of the signal phase is the first perception information; or the maximum value in the perception signal information is the first perception information.

[0129] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, in the maximum value of the perception signal information corresponding to the M1 or M2 non-zero motion frequencies: the perception signal information corresponding to the sub-signal of the second perception signal with the maximum signal energy is the first perception information; or the perception signal information corresponding to the sub-signal of the second perception signal with the maximum variance of the signal amplitude is the first perception information; or the perception signal information corresponding to the sub-signal of the second perception signal with the maximum standard deviation of the signal amplitude is the first perception information; or the perception signal information corresponding to the sub-signal of the second perception signal with the maximum variance of the signal phase is the first perception information; or the perception signal information corresponding to the sub-signal of the second perception signal with the maximum standard deviation of the signal phase is the first perception information.

[0130] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, in the maximum value of the perception signal information corresponding to the M1 or M2 non-zero motion frequencies: the perception signal information corresponding to the second perception signal with the maximum signal energy is the first value; or the perception signal information corresponding to the second perception signal with the maximum variance of the signal amplitude is the first value; or the perception signal information corresponding to the second perception signal with the maximum standard deviation of the signal amplitude is the first value; or the perception signal information corresponding to the second perception signal with the maximum variance of the signal phase is the first value; or the perception signal information corresponding to the second perception signal with the maximum standard deviation of the signal phase is the first value; or the maximum value in the perception signal information is the first value.

[0131] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, in the maximum value of the perception signal information corresponding to the M1 or M2 non-zero motion frequencies, the perception signal information corresponding to the sub-signal of the second perception signal with the maximum signal energy is the first value; or, the perception signal information corresponding to the sub-signal of the second perception signal with the maximum variance of the signal amplitude is the first value; or, the perception signal information corresponding to the sub-signal of the second perception signal with the maximum standard deviation of the signal amplitude is the first value; or, the perception signal information corresponding to the sub-signal of the second perception signal with the maximum variance of the signal phase is the first value; or, the perception signal information corresponding to the sub-signal of the second perception signal with the maximum standard deviation of the signal phase is the first value.

[0132] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the first device or the second device receives the configuration information of the perception signal from the first network device; or, receives the configuration information of the perception signal from the first device.

[0133] In some possible implementation manners based on the third aspect or the fourth aspect of the present application, the second device sends the configuration information of the perception signal to the first device.

[0134] The fifth aspect of the present application provides a communication apparatus, which can be the first device or the second device, can be a component (for example, a processor, a chip, or a chip system, etc.) applied to the first device or the second device, can also be a logic module or software (for example, a CU, a DU, or a RU, etc.) capable of realizing all or part of the functions of the first device or the second device. The communication apparatus comprises:

[0135] The processor is configured to execute a program, so that the communication apparatus performs the method in the first aspect or the second aspect and any possible implementation manner thereof.

[0136] Optionally, the communication apparatus further comprises a memory, and the processor is coupled with the memory; and the memory is configured to store the program.

[0137] The sixth aspect of the present application provides a chip or a chip system, which comprises at least one processor and a communication interface, the communication interface and the at least one processor are interconnected through a line, and the at least one processor is configured to run a computer program or an instruction to perform the information transmission method in any one of the possible implementation manners of the first aspect or the second aspect.

[0138] The communication interface in the chip can be an input / output interface, a pin, or a circuit, etc.

[0139] In a possible implementation, the chip or the chip system described in the foregoing description of the present application further includes at least one memory in which instructions are stored. The memory can be a storage unit inside the chip, for example, a register, a cache, etc., or a storage unit of the chip, for example, a read-only memory, a random access memory, etc.

[0140] The seventh aspect of the present application provides a communication system, including a communication apparatus performing the method according to the first aspect and any possible implementation of the first aspect, and a communication apparatus performing the method according to the second aspect and any possible implementation of the second aspect.

[0141] The eighth aspect of the present application provides a computer readable storage medium, including instructions, when the instructions are run on a computer, causing the computer to perform the method according to the first aspect, or causing the computer to perform the method according to the second aspect.

[0142] The ninth aspect of the present application provides a computer program product including instructions, when the instructions are run on a computer, causing the computer to perform the method according to the first aspect, or causing the computer to perform the method according to the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0143] FIG. 1 is a network structure diagram in the embodiment of the present application;

[0144] FIG. 2 is a possible application scenario of the signal transmission method in the embodiment of the present application;

[0145] FIG. 3 is a schematic diagram of one embodiment of the network device-network device two-station mode in the embodiment of the present application;

[0146] FIG. 4 is a schematic diagram of one embodiment of the network device-terminal device two-station mode in the embodiment of the present application;

[0147] FIG. 5 is a schematic diagram of one embodiment of the terminal device-network device two-station mode in the embodiment of the present application;

[0148] FIG. 6 is a schematic diagram of one embodiment of the terminal device-terminal device two-station mode in the embodiment of the present application;

[0149] FIG. 7 is a schematic diagram of one embodiment of the network device single-station mode in the embodiment of the present application;

[0150] FIG. 8 is a schematic diagram of one embodiment of the terminal device single-station mode in the embodiment of the present application;

[0151] FIG. 9 is a schematic diagram of one embodiment of the fluctuation change caused by the movement of the target at different positions in the embodiment of the present application;

[0152] FIG. 10 is a schematic diagram of one embodiment of the signal transmission method in the embodiment of the present application;

[0153] FIG. 11 is a schematic diagram of one embodiment of the first sensing signal transmission method in the embodiments of the present application;

[0154] FIG. 12 is a schematic diagram of another embodiment of the first sensing signal transmission method in the embodiments of the present application;

[0155] FIG. 13 is a schematic diagram of another embodiment of the first sensing signal transmission method in the embodiments of the present application;

[0156] FIG. 14 is a schematic diagram of another embodiment of the fluctuation change caused by the movement of the target at different positions in the embodiments of the present application;

[0157] FIG. 15 is a schematic diagram of another embodiment of the fluctuation change caused by the movement of the target at different positions in the embodiments of the present application;

[0158] FIG. 16 is a schematic diagram of another embodiment of the fluctuation change caused by the movement of the target at different positions in the embodiments of the present application;

[0159] FIG. 17 is a schematic diagram of one embodiment of the sensing signal information in the embodiments of the present application;

[0160] FIG. 18 is a schematic diagram of another embodiment of the sensing signal information in the embodiments of the present application;

[0161] FIG. 19 is a schematic diagram of another embodiment of the sensing signal information in the embodiments of the present application;

[0162] FIG. 20 is a schematic diagram of another embodiment of the sensing signal information in the embodiments of the present application;

[0163] FIG. 21 is a schematic diagram of another embodiment of the signal transmission method in the embodiments of the present application;

[0164] FIG. 22 is a schematic diagram of another embodiment of the signal transmission method in the embodiments of the present application;

[0165] FIG. 23 is a schematic diagram of another embodiment of the signal transmission method in the embodiments of the present application;

[0166] FIG. 24 is a schematic diagram of one embodiment of the communication apparatus in the embodiments of the present application;

[0167] FIG. 25 is a schematic diagram of another embodiment of the communication apparatus in the embodiments of the present application;

[0168] FIG. 26 is a schematic diagram of another embodiment of the communication apparatus in the embodiments of the present application. DETAILED DESCRIPTION

[0169] The embodiments of the present application provide a signal transmission method, a communication apparatus and a storage medium, which are used for realizing the reception and transmission of sensing signals and determining the information of a sensing target.

[0170] The embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art can know that, with the development of technology and the emergence of new scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0171] The terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, which is only a distinguishing way adopted in the description of the embodiments of the present application for the objects with the same attribute in the description. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, so that the processes, methods, systems, products or equipment containing a series of units do not have to be limited to those units, but can include other units not clearly listed or inherent to these processes, methods, products or equipment.

[0172] First, some technical terms involved in the embodiments of the present application are introduced.

[0173] 1) Resource unit: time domain unit, frequency domain unit;

[0174] The resource includes two dimensions of time domain resource and / or frequency domain resource. Among them, the unit of time domain resource is time domain unit, and the unit of frequency domain resource is frequency domain unit.

[0175] The time domain unit can be a symbol, a slot, a mini-slot, a sub-frame, a frame, etc.

[0176] The frequency domain unit can be a resource element (RE), a resource block (RB), a channel, a subchannel, a control channel element (CCE), a resource pool, a bandwidth part (BWP), a carrier, a band, etc.

[0177] The above time domain unit and frequency domain unit can be combined in any way, for example, the resource can be a time-frequency unit with symbol in time domain and RE in frequency domain, and again for example, the resource can be a time-frequency unit with symbol in time domain and RB in frequency domain.

[0178] In the embodiments of the present application, the time domain unit for transmitting a sensing signal can also be referred to as a transmission occasion of the sensing signal, and the two can be replaced synonymously.

[0179] 2) Communication and sensing integration;

[0180] Communication and sensing integration (also referred to as sensing) is an important technical direction. A communication system has sensing capability, and communication and sensing integration design is implemented. There are various forms of communication and sensing integration, such as completing sensing functions through communication signals or assisting communication based on sensing results. The functions of sensing include target detection and the like.

[0181] A sensing target (which can be translated as a sensing object or a sensing target) is also referred to as a sensed target, or simply a target (target or object). The sensing target includes an unmanned aerial vehicle (UAV) target, a human target, an automotive vehicle target, an automated guided vehicle target, an object creating hazards on roads / railways, and the like.

[0182] 3) Sensing signal;

[0183] A sensing signal can also be referred to as a signal for sensing, a sensing reference signal, or a reference signal for sensing. The sensing signal can be a signal sent alone, a signal sent together with a communication signal, or a communication signal used for sensing service.

[0184] The sensing signal can propagate via a path of “sensing transmitter-sensing target-sensing receiver”, via a path of “sensing transmitter-sensing receiver”, or via a path of “sensing transmitter-interference / environment-sensing receiver”. That is, the sensing signal can be the above single path, or a combination of the above paths. And the sum signal of the above paths is received at the sensing receiver.

[0185] In the embodiments of the present application, the transmitted sensing signal is referred to as a first sensing signal, and the received sensing signal is referred to as a second sensing signal. In fact, the first sensing signal and the second sensing signal are the same signal (for example, both are referred to as a sensing signal). In sensing, the change of the second sensing signal compared with the first sensing signal includes the change caused by reflection and / or scattering via the sensing target, for example, including the change of the time domain and / or frequency domain of the sensing signal, and for example, including the change of the amplitude and / or phase of the sensing signal, which to some extent reflects the information of the sensing target. The specific description of the first sensing signal and the second sensing signal is detailed in the embodiments.

[0186] Referring to FIG. 1, a network architecture on which the communication method in the embodiments of the present application is based is briefly described as follows.

[0187] FIG. 1 is a schematic diagram of a possible, non-limiting system. As shown in FIG. 1, the communication system 10 includes a radio access network (RAN) 100, a core network (CN) 200, and an Internet 300. The RAN 100 includes at least one RAN node (e.g., 110a and 110b in FIG. 1, collectively referred to as 110) and at least one terminal (e.g., 120a-120j in FIG. 1, collectively referred to as 120). The RAN 100 can further include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 1), etc. The terminal 120 is connected to the RAN node 110 in a wireless manner. The RAN node 110 is connected to the core network 200 in a wireless or wired manner. The core network device in the core network 200 and the RAN node 110 in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the radio access network.

[0188] The RAN 100 can be a 3rd generation partnership project (3GPP)-related cellular system, such as a 4G, 5G mobile communication system, or a future mobile communication system. The RAN 100 can also be an ORAN, a CRAN, or a wireless fidelity (Wi-Fi) system. The RAN 100 can also be a communication system in which two or more of the above systems are integrated.

[0189] The RAN node 110, which can also be referred to as an access network device, a RAN entity, or an access node, etc., constitutes part of the communication system to help terminals to access wirelessly. The plurality of RAN nodes 110 in the communication system 10 can be nodes of the same type or nodes of different types. In some scenarios, the roles of the RAN node 110 and the terminal 120 are relative, for example, the network element 120i in FIG. 1 can be a helicopter or a drone, which can be configured as a mobile base station. For a terminal 120j that accesses the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal. The RAN node 110 and the terminal 120 are sometimes collectively referred to as communication apparatuses, for example, the network elements 110a and 110b in FIG. 1 can be understood as communication apparatuses with base station functions, and the network elements 120a-120j can be understood as communication apparatuses with terminal functions.

[0190] In a possible scenario, the RAN node can be a network device, which can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a future mobile communication system, a base station in a future mobile communication system, an access node in a Wi-Fi system, a transmitting and receiving point (TRP), a transmitting point (TP), a mobile switching center, and a device-to-device (D2D), vehicle-to-everything (V2X), machine-to-machine (M2M) communication device assuming a base station function, and the like, which are not limited herein. The RAN node can be a macro base station (e.g., 110a in FIG. 1), a micro base station or an indoor station (e.g., 110b in FIG. 1), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, and the like. For example, an access network device in vehicle-to-everything (V2X) technology can be a road side unit (RSU). All or part of the functions of the RAN node in this application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (e.g., a cloud platform). The RAN node can also be provided with a communication module, circuit or chip for performing corresponding communication functions, and program instructions for performing corresponding communication functions. The RAN node in this application can also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node.

[0191] In another possible scenario, multiple RAN nodes cooperate to assist a terminal to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-CP, a CU-UP, or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can also be included in the same network element, for example, in a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0192] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, the CU-CP, the CU-UP, the DU and the RU are taken as examples for description in this application. Any one of the CU (or the CU-CP, the CU-UP), the DU and the RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0193] In another possible scenario, the terminal can interact with another terminal, or the terminal can interact with the network, such as the transmission and reception of signals. The terminal (terminal) can be a device or module with corresponding communication functions to access the above-mentioned communication system. The terminal can also be referred to as a mobile station (mobile station, MS), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), access terminal, subscriber unit, user station, user terminal, wireless communication device, user agent or user device, etc. The terminal refers to a device that provides voice and / or data connectivity to a user. For example, a handheld device with wireless connection function, a vehicle-mounted device or a wearable device, etc. The terminal can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.). Exemplarily, the terminal can be a wireless terminal in internet of things (internet of things, IoT), vehicle to everything (vehicle to everything, V2X), D2D communication technology (device-to-device communication, D2D), machine to machine (machine to machine, M2M), 5G or future evolution of public land mobile network (public land mobile network, PLMN), sensing.For example, the terminal can be a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless modem, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a machine type communication (MTC) terminal, a vehicle terminal, a vehicle with vehicle-to-vehicle (V2V) communication capability, a smart connected vehicle, a drone with UAV to UAV (U2U) communication capability, etc. Embodiments of the present application do not limit the form of the terminal. The terminal can be widely applied to various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart grid, smart home, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, a transport vehicle with wireless communication function, a communication module, etc. Embodiments of the present application do not limit the device form of the terminal. The terminal is usually provided with a communication module, circuit or chip for executing corresponding communication functions. The terminal can also be configured with program instructions for executing corresponding communication functions.

[0194] In addition, the embodiments of the present application can also be applied to other future-oriented communication technologies. The network architecture and service scenarios described in the present application are for more clearly illustrating the technical solutions of the present application, and do not constitute a limitation on the technical solutions provided by the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the present application are also applicable to similar technical problems.

[0195] FIG. 2 shows an application scenario to which the embodiments of the present application can be applied. A first device 201 is a device for transmitting a sensing signal, and the sensing signal is reflected and / or scattered at a sensing target 203 and received by a second device 202. The second device 202 can receive the sensing signal from the first device 201, or receive the sensing signal reflected and / or scattered via the sensing target 203. Optionally, the application scenario further includes a network device 204 for indicating configuration information of the sensing signal to the first device 201 and / or the second device 202. In a possible implementation, the first device 201 and the second device 202 are the same device, for example, the first device 201 is self-transmitting and self-receiving, which is not limited here.

[0196] In the formula, the first device 201 can be a terminal device or a functional module arranged in a terminal device, such as a chip system or a module in a chip system, or the first device 201 can be a network device or a functional module arranged in a network device, such as a chip system or a module in a chip system; the second device 202 can be a terminal device or a functional module arranged in a terminal device, such as a chip system or a module in a chip system, or the second device 202 can be a network device or a functional module arranged in a network device, such as a chip system or a module in a chip system. The first device 201 and the second device 202 can be the same type of apparatus, for example, both are terminal devices; or the first device 201 and the second device 202 can also be different types of apparatus, for example, the first device 201 is a terminal device and the second device 202 is a network device, or for example, the first device 201 is a network device and the second device 202 is a terminal device, which is not limited here. The first device 201 and the second device 202 can be the same device, for example, the same terminal device, or the same network device.

[0197] In the formula, the sensing target 203 can be a terminal device or a functional module arranged in a terminal device, such as a chip system or a module in a chip system; or the sensing target 203 can be a network device or a functional module arranged in a network device, such as a chip system or a module in a chip system; or the sensing target 203 can be an object without communication function, such as a drone target, a human target, a vehicle target, an automated device target, a road target, etc.

[0198] In the present application, the form of the terminal is not limited, and the device for realizing the function of the terminal can be the terminal; or can be a device capable of supporting the terminal to realize the function, such as a chip system. The device can be installed in the terminal or used with the terminal.

[0199] In the present application, the form of the network device is not limited, and the device for realizing the function of the network device can be the network device; or can be a device capable of supporting the network device to realize the function, such as a chip system. The device can be installed in the network device or used with the network device.

[0200] In a possible implementation, as shown in FIG. 3, the first device and the second device are both network devices, that is, one network device transmits the sensing signal, and the other network device receives the sensing signal, which is referred to as a network device-network device two-station mode.

[0201] In another possible implementation, as shown in FIG. 4, the first device is a network device, and the second device is a terminal device, that is, the network device transmits the sensing signal, and the terminal device receives the sensing signal, which is referred to as a network device-terminal device two-station mode.

[0202] In another possible implementation, as shown in FIG. 5, the first device is a terminal device, and the second device is a network device, that is, the terminal device transmits the sensing signal, and the network device receives the sensing signal, which is referred to as a terminal device-network device two-station mode.

[0203] In another possible implementation, as shown in FIG. 6, the first device and the second device are both terminal devices, that is, one terminal device transmits the sensing signal, and the other terminal device receives the sensing signal, which is referred to as a terminal device-terminal device two-station mode.

[0204] In another possible implementation, as shown in FIG. 7, the first device is a network device, and the first device transmits and receives the sensing signal by itself, that is, the same network device transmits and receives the sensing signal, which is referred to as a network device single-station mode.

[0205] In another possible implementation, as shown in FIG. 8, the first device is a terminal device, and the first device transmits and receives the sensing signal by itself, that is, the same terminal device transmits and receives the sensing signal, which is referred to as a terminal device single-station mode.

[0206] In the above implementation, the transmitted sensing signal can be referred to as a first sensing signal, and the received sensing signal can be referred to as a second sensing signal. The relationship between the first sensing signal and the second sensing signal is described later.

[0207] The device sending the sensing signal can be referred to as a sensing transmitter, and can be denoted as a first device. The device receiving the sensing signal can be referred to as a sensing receiver, and can be denoted as a second device. Exemplarily, the sensing transmitter can be a network device or a terminal device, and the sensing receiver can be a network device or a terminal device. The embodiments of the present application can be applied to any one of the six sensing modes described above. For example, when the embodiments of the present application are applied to the sensing mode shown in FIG. 3, both the sensing transmitter and the sensing receiver can be network devices (for example, base station A and base station B, respectively); when the embodiments of the present application are applied to the sensing mode shown in FIG. 4, the sensing transmitter is a network device, and the sensing receiver is a terminal device; when the embodiments of the present application are applied to the sensing mode shown in FIG. 5, the sensing transmitter is a terminal device, and the sensing receiver is a network device; when the embodiments of the present application are applied to the sensing mode shown in FIG. 6, both the sensing transmitter and the sensing receiver can be terminal devices (for example, terminal A and terminal B, respectively); when the embodiments of the present application are applied to the sensing mode shown in FIG. 7, the sensing transmitter and the sensing receiver are the same network device; and when the embodiments of the present application are applied to the sensing mode shown in FIG. 8, the sensing transmitter and the sensing receiver are the same terminal device.

[0208] The sensing signal in the embodiments of the present application can also be referred to as a signal for sensing, a sensing reference signal, or a reference signal for sensing. The sensing signal can be a signal sent alone; can be a signal sent together with a communication signal; or can be a communication signal for sensing service.

[0209] Exemplarily, the sensing signal in the embodiments of the present application can be any one of a channel state information-reference signal (CSI-RS), a synchronization signal block (SSB), a positioning reference signal (PRS), and a sounding reference signal (SRS). The SRS can be a multi-input multi-output (MIMO) SRS or a positioning SRS. In the embodiments of the present application, both the first sensing signal and the second sensing signal are referred to as sensing signals. Similarly, the sub-signals of the first sensing signal and the sub-signals of the second sensing signal can also be referred to as sensing signals. These signals are all signals that can determine sensing target information.

[0210] When the sensing target moves, the signal strength, amplitude and / or phase of the sensing signal fluctuates, as shown in FIG. 9. The fluctuations caused by the movement of the sensing target at different positions are different. For example, the signal strength fluctuation of the sensing signal caused by the movement of the sensing target at position 1 by 1 centimeter (cm) is smaller than the signal strength fluctuation of the sensing signal caused by the movement of the sensing target at position 2 by 1 cm. From the perspective of signal processing, the greater the change in signal strength, amplitude and / or phase, the more conducive to subsequent signal processing, that is, the better the sensing performance. Therefore, the sensing performance is poor at some positions when the sensing target moves by 1 cm.

[0211] Based on this, an embodiment of the present application proposes a method. Please refer to FIG. 10, a signal transmission method in an embodiment of the present application includes:

[0212] 1001, determining M1 phases and / or M2 frequencies of a first sensing signal;

[0213] Step 1001 can be executed by a first device or by a module (such as a processor, a chip, a chip system, a circuit, etc.) therein. Taking the first device as an example, the first device determines M1 phases and / or M2 frequencies of the first sensing signal.

[0214] As a possible implementation manner, the first sensing signal is located on M1 frequency domain units, and the M1 phases of the first sensing signal include M1 phases of the first sensing signal transmitted on the M1 frequency domain units; and / or, the first sensing signal is located on M2 frequency domain units, and the M2 frequencies of the first sensing signal include frequencies of the M2 frequency domain units.

[0215] In the embodiment of the present application, M1 and M2 are both positive integers. M2 can be greater than M1, and M2 can also be equal to M1. This is not limited here.

[0216] In the embodiment of the present application, the frequency domain unit can be a resource element (RE). For example, the 4 frequency domain units are RE1, RE2, RE3 and RE4 respectively. The M1 phases of the first sensing signal can be the phases of the first sensing signal carried on RE1, RE2, RE3 and RE4; and the M2 frequencies of the first sensing signal can be the frequencies corresponding to RE1, RE2, RE3 and RE4.

[0217] In the embodiment of the present application, the first sensing signal is located on M1 frequency domain units, and the first sensing signal carried on M1 REs can be referred to as M1 first sensing signals or simply as the first sensing signal; or, the first sensing signal is located on M2 frequency domain units, and the first sensing signal carried on M2 REs can be referred to as M2 first sensing signals or simply as the first sensing signal.

[0218] The first sensing signal can have M1 different phases or M2 different frequencies, which are described as follows respectively:

[0219] 1. The first sensing signal has M1 different phases.

[0220] M1 is an integer greater than or equal to 1. For example, M1 can be any one of {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}. M1 can also be an integer greater than or equal to 16, which is not limited here. In the embodiment of the present application, the phase can be understood as an initial phase. That is, M1 different phases can be understood as M1 different initial phases.

[0221] The phase can be greater than or equal to 0, and / or less than or equal to π, or greater than or equal to π, and / or less than or equal to 2π. For example, the phases are respectively For another example, the phases are respectively

[0222] The first sensing signal includes M2 sub-signals, and the M2 sub-signals are signals generated by the same sequence or sub-signals generated by different sequences. In one possible implementation, M1=M2, that is, the M1 first sensing signals have M1 different phases. That is, the M1 sub-signals included in the first sensing signal are respectively mapped to M1 frequency domain units. The sub-signals are the first sensing signals carried on each frequency domain unit. For example, the first sensing signal includes Then M1=4 frequency domain units respectively map sub-signals A1·e j0 , A4·e jπ3 / 4 .

[0223] The first sensing signal is mapped to M2 frequency domain units (M2 is a positive integer), and the first sensing signal respectively carried on each frequency domain unit is a sub-signal included in the first sensing signal. That is, the M2 frequency domain units respectively carry the M2 sub-signals included in the first sensing signal.

[0224] The phase of the first sensing signal can be understood as the phase of the sub-signal included in the first sensing signal. The phase of the sub-signal included in the first sensing signal is the phase corresponding to the frequency domain element carrying each sub-signal. It can be understood that, since the first sensing signal is mapped to M2 frequency domain elements, the sub-signal included in the first sensing signal includes M2 phases. In the embodiments of the present application, the phase of the sub-signal included in the first sensing signal can be simply denoted as the phase of the first sensing signal. For example, the first sensing signal includes M2 sub-signals, and the M2 sub-signals have M2 phases respectively. That is, the first sensing signal has M1 different phases can be understood as: the first sensing signal includes M2 sub-signals, and the M2 sub-signals have M2 phases respectively, and M1 of the M2 phases are different.

[0225] The frequency of the sub-signal included in the first sensing signal is the frequency corresponding to the frequency domain element carrying each sub-signal. It can be understood that, since the first sensing signal is mapped to M2 frequency domain elements, the sub-signal included in the first sensing signal includes M2 frequencies. Among them, the frequency of the sub-signal included in the first sensing signal can be any one of the minimum value, the maximum value, the average value, and the median value of the M2 frequencies. In the embodiments of the present application, the frequency of the sub-signal included in the first sensing signal can be simply denoted as the frequency of the first sensing signal. Among them, the relationship between the wavelength λ and the frequency f satisfies λ=c / f.

[0226] The wavelength of the sub-signal included in the first sensing signal is the wavelength corresponding to the frequency domain element carrying each sub-signal. It can be understood that, since the first sensing signal is mapped to M2 frequency domain elements, the sub-signal included in the first sensing signal includes M2 wavelengths. Among them, the wavelength of the sub-signal included in the first sensing signal can be any one of the minimum value, the maximum value, the average value, and the median value of the M2 wavelengths. In the embodiments of the present application, the wavelength of the sub-signal included in the first sensing signal can be simply denoted as the wavelength of the first sensing signal. Among them, the relationship between the wavelength λ and the frequency f satisfies λ=c / f.

[0227] In a possible implementation, the M1 different phases of the first sensing signal include: the first sensing signal is mapped to M1 frequency domain elements, and the first sensing signal on each frequency domain element has a different phase. It can be understood that, the first sensing signal respectively carried on the M1 frequency domain elements is the M1 sub-signal included in the first sensing signal. For example, the first sensing signal includes The first sensing signal is mapped to 4 frequency domain elements, and the first sensing signal on each frequency domain element has a different phase, and M1=4 different phases are

[0228] In another possible implementation, the M1 different phases of the first sensing signal include: in the frequency domain units (e.g., M2 frequency domain units) carrying the first sensing signal, where the first sensing signals respectively carried on the M1 frequency domain units have M1 different phases. It can be understood that the first sensing signals respectively carried on the frequency domain units are the sub-signals included in the first sensing signal. For example, the first sensing signal and / or the second sensing signal include The first sensing signal is mapped to 8 frequency domain units, and the first sensing signal and / or the second sensing signal carried on 4 of them have M1 = 4 different phases, which are respectively

[0229] As a possible implementation, the M1 phases of the first sensing signal are determined by the configuration information of the sensing signal, which includes: the number of phases M1, the phase difference Δθ, the phase offset θ o or at least one of the phase list. Wherein, the number of phases M1 is the number of phases included in the first sensing signal. Wherein, the phase difference Δθ is the difference between two adjacent phases, which can be the phase difference between each two phases in the multiple phases included in the first sensing signal; or, it can also be the phase difference between the sub-signals carried by each two frequency domain units in the multiple frequency domain units carrying the first sensing signal. Wherein, the phase offset θ o is the smallest phase in the multiple phases included in the first sensing signal; or, it is the phase of the sub-signal carried by the frequency domain unit with the smallest index in the multiple frequency domain units carrying the first sensing signal.

[0230] For example, the way to determine the m1th phase of the M1 phases of the first sensing signal can be applied to determine any phase of the M1 phases of the first sensing signal. Wherein, m1 is an integer less than or equal to M1 and greater than or equal to 1. The m1th phase of the M1 phases of the first sensing signal can be understood as: the first sensing signal is mapped to M1 frequency domain units, and the m1th phase is the phase of the first sensing signal on the m1th frequency domain unit; or, in the frequency domain units (e.g., M2 frequency domain units) carrying the first sensing signal, the m1th phase is the phase of the first sensing signal carried on the m1th frequency domain unit in the M1 frequency domain units, which is not limited here.

[0231] It should be understood that the m1th phase of the M1 phases of the first sensing signal can also be understood as: the phase of the m1th first sensing signal in the M1 first sensing signals, where the phase of each first sensing signal in the M1 first sensing signals is different.

[0232] Optionally, the configuration information of the sensing signal indicates a phase list, or the configuration information of the sensing signal indicates a pre-defined phase list, or the protocol pre-defines a phase list. The first device can determine the M1 phases of the first sensing signal according to the phase list. Specifically, the phase list can include M1 pre-configured phases. For example, the first device can determine the M1 phases of the first sensing signal according to the phase list indicated by the configuration information of the sensing signal. The phase list is which means that the 2 phases of the first sensing signal can be The phase list is which means that the 4 phases of the first sensing signal can be The phase list is which means that the 8 phases of the first sensing signal can be The specific embodiments are not limited here.

[0233] Optionally, the configuration information of the sensing signal indicates the number of phases M1. The M1 phases of the first sensing signal and / or the second sensing signal can be determined according to the number of phases M1. Specifically, the m1th phase of the M1 phases of the first sensing signal is (m1-1)π / M1. Wherein, m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the first sensing signal can be For example, if the configuration information of the sensing signal indicates that the number of phases is 8, the 4th phase of the first sensing signal is The specific embodiments are not limited here.

[0234] Optionally, the configuration information of the sensing signal indicates a phase difference Δθ. The first device can determine the M1 phases of the first sensing signal according to the phase difference Δθ. Specifically, the m1th phase of the M1 phases of the first sensing signal is (m1-1)Δθ. Wherein, m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the first sensing signal can be {0, Δθ, 2Δθ, …, (M1-1)Δθ}. For example, if the configuration information of the sensing signal indicates that the phase difference is the 3rd phase of the first sensing signal is The specific embodiments are not limited here.

[0235] Optionally, the configuration information of the sensing signal indicates the number of phases M1 and the phase difference Δθ. The M1 phases of the first sensing signal can be determined based on this number of phases M1 and the phase difference Δθ. Specifically, the m1-th phase among the M1 phases of the first sensing signal is (m1-1)Δθ or (m1-1)π / M1. Here, m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the first sensing signal can be {0, Δθ, 2Δθ, ..., (M1-1)Δθ}, or they can be... For example, if the configuration information of the sensing signal indicates that the number of phases is 8 and the phase difference is... The phases of the first sensing signal are respectively No specifics are specified here.

[0236] Optionally, the configuration information of the sensed signal indicates the number of phases M1 and the phase offset θ. o The first device can determine the number of phases M1 and the phase offset θ. o Determine the M1 phases of the first sensing signal. Specifically, the m1-th phase among the M1 phases of the first sensing signal is (m1-1)π / M1+θ. o Where m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the first sensing signal can be respectively... For example, if the first sensing signal has 6 phases and the phase shift is... Then the fourth phase of the first sensing signal is No specifics are specified here.

[0237] Optionally, the configuration information of the sensed signal indicates the phase difference Δθ and the phase offset θ. o The first device can determine the phase difference Δθ and the phase offset θ. o Determine the M1 phases of the first sensing signal. Specifically, the m1-th phase among the M1 phases of the first sensing signal is (m1-1)Δθ+θ o Where m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phase of the first sensing signal can be {θ...} o ,Δθ+θ o ,2Δθ+θ o ,……,(M1-1)Δθ+θ o For example, if the phase difference is... And the phase shift is Then the third phase of the first sensing signal is No specifics are specified here.

[0238] Optionally, the configuration information of the sensing signal indicates the number of phases M1, the phase difference Δθ and the phase offset θ o The M1 phases of the first sensing signal can be determined according to the number of phases M1, the phase difference Δθ and the phase offset θ o That is, the phases of the first sensing signal can be {θ o , Δθ+θ o , 2Δθ+θ o , …, (M1-1)Δθ+θ o , respectively, or

[0239] It should be understood that the number of phases M1 and the phase difference Δθ satisfy the relationship: Δθ=π / M1, or M1=π / Δθ.

[0240] It should be understood that the default value of the phase offset θ o is 0, and the phase offset θ o may be 0 or other values, which are not limited here.

[0241] In the embodiments of the present application, through the configuration information of the sensing signal, the first device can flexibly configure the M1 phases of the first sensing signal.

[0242] As a possible implementation, the number of phases M1 is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy; and / or, the phase difference Δθ is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy.

[0243] In a possible implementation, the first device can determine the number of phases M1 according to the distance resolution, and / or, can determine the phase difference Δθ according to the distance resolution. The distance resolution is used to indicate the minimum unit of the target moving distance that can be distinguished. The distance resolution can be related to the wavelength λ of the first sensing signal, that is, under different distance resolutions, a suitable wavelength of the first sensing signal is used to determine the information of the sensing target. The following describes the conditions met by the distance resolution suitable for self-generation and self-reception mode sensing, and the conditions met by the distance resolution suitable for self-generation and other-reception mode sensing, based on the wavelength λ of the first sensing signal.

[0244] In the embodiments of the present application, the wavelength λ of the first sensing signal is the wavelength of the sub-signal included in the first sensing signal.

[0245] In the embodiments of the present application, "greater than or equal to" can be replaced by "greater than", that is, "≥" can be replaced by ">"; "less than or equal to" can be replaced by "less than", that is, "≤" can be replaced by "<", which are not limited here.

[0246] In the embodiment, the at least X different phases can be understood as: X is less than or equal to M1, or X is less than or equal to π / Δθ. Correspondingly, the minimum value of M1 for indicating the number of phases can also be understood as X for indicating the maximum value of Δθ. That is, the phase difference Δθ and / or the number of phases M1 of the first sensing signal can be determined according to the distance resolution and the wavelength.

[0247] 1) Case 1:

[0248] Optionally, Case 1 can be applied to the sensing in the self-initiated and self-received mode, including the sensing in the network device self-initiated and self-received mode or the terminal device self-initiated and self-received mode.

[0249] Optionally, if the distance resolution is less than or equal to λ / X, the first sensing signal includes at least X different phases, λ is the wavelength of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0250] For example, if the distance resolution is less than or equal to λ / 2, the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2.

[0251] For example, if the distance resolution is less than or equal to λ / 3, the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3.

[0252] For example, if the distance resolution is less than or equal to λ / 4, the first sensing signal needs to have at least 4 different phases, which is not limited here, or the phase difference of the first sensing signal needs to be at least π / 4.

[0253] Optionally, if the distance resolution is greater than or equal to λ / 2X, the first sensing signal includes at least X different phases, λ is the wavelength of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0254] For example, if the distance resolution is greater than or equal to λ / 4, the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For example, if the distance resolution is greater than or equal to λ / 6, the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For example, if the distance resolution is greater than or equal to λ / 8, the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4, which is not limited here.

[0255] Optionally, if the distance resolution is less than or equal to λ / X and greater than or equal to λ / (2X), i.e., λ / (2X)≤distance resolution≤λ / X, the first sensing signal comprises at least X different phases, λ is the wavelength of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0256] For example, λ / 4≤distance resolution≤λ / 2, the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, λ / 6≤distance resolution≤λ / 3, the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For another example, λ / 8≤distance resolution≤λ / 4, the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4, which is not limited here.

[0257] 2) Case 2:

[0258] Optionally, case 2 can be applied to sensing in a self-reception mode. The self-reception mode includes at least one of a terminal device-terminal device double station mode, a network device-network device double station mode, a network device-terminal device double station mode, or a terminal device-network device double station mode.

[0259] Optionally, if the distance resolution is less than or equal to 2λ / X, i.e., distance resolution≤2λ / X, the first sensing signal comprises at least X different phases, λ is the wavelength of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0260] For example, distance resolution≤λ, the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, distance resolution≤2λ / 3, the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For another example, distance resolution≤λ / 2, the first sensing signal needs to have at least 4 different phases, which is not limited here, or the phase difference of the first sensing signal needs to be at least π / 4.

[0261] Optionally, if the distance resolution is greater than or equal to λ / X, i.e., distance resolution≥λ / X, the first sensing signal comprises at least X different phases, λ is the wavelength of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0262] For example, if the distance resolution is ≥ λ / 2, then the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, if the distance resolution is ≥ λ / 3, then the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For yet another example, if the distance resolution is ≥ λ / 4, then the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4, without limitation.

[0263] Optionally, if the distance resolution is less than or equal to 2λ / X and greater than or equal to λ / X, the first sensing signal includes at least X different phases, λ being the wavelength of the first sensing signal, and X being used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0264] For example, if the distance resolution is ≥ λ / 2, then the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, if the distance resolution is ≥ λ / 3, then the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For yet another example, if the distance resolution is ≥ λ / 4, then the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4, without limitation.

[0265] It should be understood that the distance resolution is also related to the frequency f of the first sensing signal, where the wavelength λ and the frequency f satisfy λ = c / f. c represents the speed of electromagnetic waves in a vacuum, also known as the speed of light. The following describes the conditions that the distance resolution needs to satisfy for self-receiving mode sensing and the conditions that the distance resolution needs to satisfy for self-receiving mode sensing based on the frequency f of the first sensing signal.

[0266] 3) Case 3:

[0267] Optionally, case 3 can be applied to self-receiving mode sensing, including network device self-receiving or terminal device self-receiving mode sensing.

[0268] Optionally, if the distance resolution is less than or equal to c / (fX), i.e., the distance resolution ≤ c / (fX), then the first sensing signal needs to have at least X different phases, f being the frequency of the first sensing signal, and X being used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0269] For example, if the distance resolution is ≤ c / (2f), then the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, if the distance resolution is ≤ c / (3f), then the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For another example, if the distance resolution is ≤ c / (4f), then the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4. The above examples are not limited to 2, 3, or 4 different phases, but can be extended to any number of different phases.

[0270] Optionally, if the distance resolution is greater than or equal to c / (2fX), i.e., the distance resolution is ≥ c / (2fX), then the first sensing signal needs to have at least X different phases, where f is the frequency of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0271] For example, if the distance resolution is ≥ c / (4f), then the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, if the distance resolution is ≥ c / (6f), then the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For another example, if the distance resolution is ≥ c / (8f), then the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4. The above examples are not limited to 2, 3, or 4 different phases, but can be extended to any number of different phases.

[0272] Optionally, if the distance resolution is less than or equal to c / (fX), and greater than or equal to c / (2fX), i.e., c / (2fX) ≤ the distance resolution ≤ c / (fX), then the first sensing signal needs to have at least X different phases, where f is the frequency of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0273] For example, if c / (4f) ≤ the distance resolution ≤ c / (2f), then the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, if c / (6f) ≤ the distance resolution ≤ c / (3f), then the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For another example, if c / (8f) ≤ the distance resolution ≤ c / (4f), then the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4. The above examples are not limited to 2, 3, or 4 different phases, but can be extended to any number of different phases.

[0274] 4) Case 4:

[0275] Optionally, case 4 can be applied to the sensing of the spontaneous-hearing mode. The spontaneous-hearing mode includes at least one of the terminal device-terminal device double station mode, the network device-network device double station mode, the network device-terminal device double station mode, or the terminal device-network device double station mode.

[0276] Optionally, if the distance resolution is less than or equal to 2c / (fX), i.e., the distance resolution ≤ 2c / (fX), the first sensing signal needs to have at least X different phases, f is the frequency of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0277] For example, if the distance resolution ≤ c / f, the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, if the distance resolution ≤ 2f / (3f), the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For another example, if the distance resolution ≤ c / (2f), the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4, which is not limited here.

[0278] Optionally, if the distance resolution is greater than or equal to c / (fX), i.e., the distance resolution ≥ c / (fX), the first sensing signal needs to have at least X different phases, f is the frequency of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0279] For example, if the distance resolution ≥ c / (2f), the first sensing signal needs to have at least 2 different phases, or the phase difference of the first sensing signal needs to be at least π / 2. For another example, if the distance resolution ≥ c / (3f), the first sensing signal needs to have at least 3 different phases, or the phase difference of the first sensing signal needs to be at least π / 3. For another example, if the distance resolution ≥ c / (4f), the first sensing signal needs to have at least 4 different phases, or the phase difference of the first sensing signal needs to be at least π / 4, which is not limited here.

[0280] Optionally, if the distance resolution is less than or equal to 2c / (fX) and greater than or equal to c / (fX), i.e., c / (fX) ≤ the distance resolution ≤ 2c / (fX), the first sensing signal needs to have at least X different phases, f is the frequency of the first sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0281] For example, c / (2f)≤distance resolution≤c / f, then the first sensing signal needs to have at least 2 different phases, or, then the first sensing signal needs to have a phase difference of at least π / 2. For example, c / (3f)≤distance resolution≤2c / (3f), then the first sensing signal needs to have at least 3 different phases, or, then the first sensing signal needs to have a phase difference of at least π / 3. For example, c / (4f)≤distance resolution≤c / (2f), then the first sensing signal needs to have at least 4 different phases, or, then the first sensing signal needs to have a phase difference of at least π / 4, which is not limited here.

[0282] It should be understood that the distance resolution in the above cases 1 to 4 can be replaced by a target moving distance, or, a dynamic diameter distance change, which satisfies the same condition, which is not repeated here.

[0283] In the embodiments of the present application, by determining the minimum value of the phase number M1, or, by determining the maximum value of the phase difference Δθ, the amplitude, signal strength and / or phase change of the first sensing signal caused by the target motion is as large as possible. For example, as shown in FIG. 14 and FIG. 15, if it is determined that the first sensing signal needs at least 4 different phases, when M1 is 2, i.e., the first sensing signal has 2 different phases, the first sensing signal (or a sub-signal of the first sensing signal) changes less when the sensing target moves at positions 2 and 4. When M1 is 4, i.e., the first sensing signal has 4 different phases, the sensing target has at least one sub-signal of the first sensing signal with a larger change at each position, thereby facilitating subsequent signal processing. In FIG. 14, sensing signal 1 is a sub-signal 1 of the first sensing signal (or a sub-signal 1 of the second sensing signal), and sensing signal 2 is a sub-signal 2 of the first sensing signal (or a sub-signal 2 of the second sensing signal). In FIG. 15, sensing signals 1 to 4 represent sub-signals 1 to 4 of the first sensing signal (sub-signals 1 to 4 of the second sensing signal).

[0284] In another possible implementation, the first device can determine the phase number M1 of the first sensing signal according to the sensing service level, and / or can determine the phase difference Δθ of the first sensing signal according to the sensing service level.

[0285] Optionally, the higher the sensing service level, the larger the M1 value, or, the lower the sensing service level, the smaller the M1 value.

[0286] Optionally, the higher the sensing service level, the smaller the Δθ value, or, the lower the sensing service level, the larger the Δθ value.

[0287] The information value of the perception service includes at least one of: a perception speed accuracy, a perception speed resolution, a perception distance accuracy, a perception distance resolution, a maximum perception speed, and a maximum perception distance. The size of the information value of the perception service can represent a level of the perception service grade.

[0288] The high perception service grade can be understood as any one or a combination of the following: a high confidence, a high accuracy of positioning estimation, a high accuracy of speed estimation, a small distance resolution, a small speed resolution, a short maximum perception service delay, a short refresh rate, a low missed detection rate, and a low false alarm rate.

[0289] The low perception service grade can be understood as any one or a combination of the following: a low confidence, a low accuracy of positioning estimation, a low accuracy of speed estimation, a large distance resolution, a large speed resolution, a long maximum perception service delay, a long refresh rate, a high missed detection rate, and a high false alarm rate.

[0290] In another possible implementation, the first device can determine the number M1 of phases of the first perception signal according to the channel quality measurement result. And / or, the phase difference Δθ of the first perception signal can be determined according to the channel quality measurement result.

[0291] Optionally, the better the channel quality measurement result is, the smaller the M1 value is. Alternatively, the worse the channel quality measurement result is, the larger the M1 value is.

[0292] Optionally, the better the channel quality measurement result is, the larger the Δθ value is. Alternatively, the worse the channel quality measurement result is, the smaller the Δθ value is.

[0293] Optionally, the channel quality measurement result is a channel quality measurement result of the first perception signal.

[0294] The channel quality measurement result good can be understood as a combination of any one or more of the following: a small channel quality indicator (CQI) value, a large signal to noise ratio (SNR), a large signal to interference plus noise ratio (SINR), and a low channel busy ratio (CBR). The small CQI value can include: the CQI value being less than or equal to a first CQI threshold, or the CQI value of the current measurement being less than or equal to the CQI value of the last measurement. The large SNR can include: the SNR value being greater than or equal to a first SNR threshold, or the SNR value of the current measurement being greater than or equal to the SNR value of the last measurement. The large SINR can include: the SINR value being greater than or equal to a first SINR threshold, or the SINR value of the current measurement being greater than or equal to the SINR value of the last measurement. The low CBR can include: the CBR value being less than or equal to a first CBR threshold, or the CBR value of the current measurement being less than or equal to the CBR value of the last measurement, which is not limited here.

[0295] The channel quality measurement result poor can be understood as a combination of any one or more of the following: a large CQI value, a small SNR, a small SINR, and a high CBR. The large CQI value can include: the CQI value being greater than or equal to a second CQI threshold, or the CQI value of the current measurement being greater than or equal to the CQI value of the last measurement. The small SNR can include: the SNR value being less than or equal to a second SNR threshold, or the SNR value of the current measurement being less than or equal to the SNR value of the last measurement. The small SINR can include: the SINR value being less than or equal to a second SINR threshold, or the SINR value of the current measurement being less than or equal to the SINR value of the last measurement. The high CBR can include: the CBR value being greater than or equal to a second CBR threshold, or the CBR value of the current measurement being greater than or equal to the CBR value of the last measurement, which is not limited here.

[0296] It should be noted that the first CQI threshold and the second CQI threshold can have the same value or different values, which is not limited here.

[0297] In another possible implementation, the first device can determine the number of phases M1 of the first sensing signal according to the signal energy of the first sensing signal, and / or can determine the phase difference Δθ of the first sensing signal according to the signal energy of the first sensing signal.

[0298] Optionally, the lower the signal energy of the first sensing signal, the larger the M1 value, or the higher the signal energy of the first sensing signal, the smaller the M1 value.

[0299] Optionally, the lower the signal energy of the first sensing signal, the smaller the value of Δθ, or in other words, the higher the signal energy of the first sensing signal, the larger the value of Δθ.

[0300] The lower signal energy of the first sensing signal can be understood as low signal strength of the first sensing signal and / or large power backoff of the first sensing signal. The low signal strength can include: the signal strength being less than or equal to a first signal strength threshold, or the current signal strength being less than or equal to the last signal strength. The large power backoff can include: the power backoff being greater than or equal to a first power backoff threshold, or the current power backoff being greater than or equal to the last power backoff, which is not limited here.

[0301] The lower signal energy of the first sensing signal can be understood as high signal strength of the first sensing signal and / or small power backoff of the first sensing signal. The high signal strength can include: the signal strength being greater than or equal to a second signal strength threshold, or the current signal strength being greater than or equal to the last signal strength. The small power backoff can include: the power backoff being less than or equal to a second power backoff threshold, or the current power backoff being less than or equal to the last power backoff, which is not limited here.

[0302] In the embodiments of the present application, the first device configures sensing resources that are more suitable for the service demand, and determines in which cases more sensing resources are needed, and configures more resources for sensing services that need more resources, to ensure the reliability of the sensing services.

[0303] 2. The first sensing signal has M2 different frequencies;

[0304] M2 is an integer greater than or equal to 1. For example, M2 can be any one of {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}. M2 can also be an integer greater than or equal to 16, which is not limited here. In the embodiments of the present application, the frequency can also be understood as the carrier frequency. That is, the M2 different frequencies can be understood as M2 different carrier frequencies.

[0305] The first sensing signal includes M2 sub-signals, and the M2 sub-signals are signals generated by the same sequence or sub-signals generated by different sequences. In one possible implementation, the M2 first sensing signals have M2 different frequencies. That is, the M2 sub-signals included in the first sensing signal are respectively mapped to M2 frequency domain units. The sub-signals are the first sensing signals carried on each frequency domain unit

[0306] In a possible implementation, the M2 different frequencies of the first sensing signal include: frequencies corresponding to M2 frequency domain resources on which the first sensing signal is mapped. It can be understood that the first sensing signal respectively carried on the M2 frequency domain resources is the M2 sub-signals included in the first sensing signal.

[0307] The frequency of the first sensing signal can be understood as the frequency of the sub-signals included in the first sensing signal, and correspondingly, the frequency domain unit carrying the first sensing signal can be understood as the frequency domain unit carrying the sub-signals included in the first sensing signal. For example, the first sensing signal includes M2 sub-signals, and the M2 sub-signals respectively have M2 frequencies. That is, the first sensing signal has M2 different frequencies can be understood as: the first sensing signal includes M2 sub-signals, and the M2 sub-signals respectively have M2 frequencies, and the M2 frequencies are different.

[0308] The frequency of the sub-signals included in the first sensing signal is the frequency corresponding to the frequency domain unit carrying each sub-signal. It can be understood that since the first sensing signal is mapped to M2 frequency domain units, the sub-signals included in the first sensing signal include M2 frequencies. The frequency of the sub-signals included in the first sensing signal can be any one of the minimum value, the maximum value, the average value, and the median value of the M2 frequencies. In the embodiment of the present application, the frequency of the sub-signals included in the first sensing signal can be simply denoted as the frequency of the first sensing signal. The relationship between the wavelength λ and the frequency f satisfies λ = c / f.

[0309] The wavelength of the sub-signals included in the first sensing signal is the wavelength corresponding to the frequency domain unit carrying each sub-signal. It can be understood that since the first sensing signal is mapped to M2 frequency domain units, the sub-signals included in the first sensing signal include M2 wavelengths. The wavelength of the sub-signals included in the first sensing signal can be any one of the minimum value, the maximum value, the average value, and the median value of the M2 wavelengths. In the embodiment of the present application, the wavelength of the sub-signals included in the first sensing signal can be simply denoted as the wavelength of the first sensing signal. The relationship between the wavelength λ and the frequency f satisfies λ = c / f.

[0310] In a possible implementation, the first device can determine the M2 frequencies of the first sensing signal in a predefined manner. For example, the protocol defines that the first sensing signal can be located at both ends of a partial bandwidth (bandwidth part, BWP).

[0311] Optionally, the first sensing signal can be located at two ends of the BWP, and the first device can determine the M2 frequencies of the first sensing signal through the frequency location information of the BWP. For example, when M2 is greater than or equal to 2, the first sensing signal can be located at two ends of the BWP. Wherein, the BWP can be understood as the BWP for sensing, or the BWP carrying the sensing service.

[0312] The highest RE with the highest RB index in the BWP and the lowest RE with the lowest RB index in the BWP respectively carry the first sensing signal, or the RE with the highest index in the BWP and the RE with the lowest index in the BWP respectively carry the first sensing signal.

[0313] It can be understood that the frequency domain unit carrying the first sensing signal includes the highest RE with the highest RB index in the BWP, the frequency domain unit carrying the first sensing signal includes the lowest RE with the lowest RB index in the BWP, or the frequency domain unit carrying the first sensing signal includes the RE with the highest index and the RE with the lowest index in the BWP.

[0314] For example, the frequency domain unit carrying the first sensing signal includes {frequency domain unit 1, frequency domain unit 2, …, frequency domain unit M2}. Wherein, {frequency domain unit 1, frequency domain unit 2, …, frequency domain unit M2 / 2} is located at one end of the BWP, and {frequency domain unit M2 / 2, frequency domain unit 1+M2 / 2, …, frequency domain unit M2} is located at the other end of the BWP. Wherein, the frequency domain unit 1 is the lowest RE with the lowest RB index in the BWP, or is the RE with the lowest index in the BWP; the frequency domain unit M2 is the highest RE with the highest RB index in the BWP, or is the RE with the highest index in the BWP. Further, {frequency domain unit 1, frequency domain unit 2, …, frequency domain unit M2 / 2} located at one end of the BWP can be continuous frequency domain units, for example, continuous REs; similarly, {frequency domain unit M2 / 2, frequency domain unit 1+M2 / 2, …, frequency domain unit M2} located at the other end of the BWP can be continuous frequency domain units, for example, continuous REs.

[0315] As a possible implementation, the M2 frequencies of the first sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of: the number of frequencies M2, the frequency difference Δf, the sensing bandwidth BW s , the frequency offset f o or the frequency location information. Wherein, Δf is the difference between two adjacent frequencies, which can be the frequency difference between each two frequencies included in the first sensing signal. The sensing bandwidth BW sThe bandwidth of the first sensing signal can be understood as the bandwidth of the frequency domain unit carrying the first sensing signal. The frequency domain unit bandwidth of the first sensing signal is the frequency interval between the maximum frequency and the minimum frequency in the frequency domain unit carrying the first sensing signal.

[0316] The manner of determining the m2th frequency of the M2 frequencies of the first sensing signal can be used to determine any frequency of the M2 frequencies of the first sensing signal. The m2 is an integer less than or equal to M2 and greater than or equal to 1. The m2th frequency of the M2 frequencies of the first sensing signal can be understood as: the first sensing signal is mapped to the M2 frequency domain units, and the m2th frequency is the frequency of the first sensing signal on the m2th frequency domain unit of the M2 frequency domain units. The specific implementation is not limited herein.

[0317] It should be understood that the m2th frequency of the M2 frequencies of the first sensing signal can also be understood as: the frequency of the m2th first sensing signal of the M2 first sensing signals, wherein the frequency of each first sensing signal of the M2 first sensing signals is different.

[0318] Optionally, the configuration information of the sensing signal indicates the frequency location information. The first device can determine the M2 frequencies of the first sensing signal through the frequency location information. Specifically, when M2 is equal to 2, that is, the first sensing signal has two different frequencies, the first sensing signal can be located at both ends of the bandwidth part (BWP), that is, the highest RE with the highest RB index and the lowest RE with the lowest RB index in the BWP respectively carry the first sensing signal, or the RE with the highest index and the RE with the lowest index in the BWP respectively carry the first sensing signal. The BWP can be understood as a BWP for sensing or a BWP carrying sensing services.

[0319] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2 and the frequency difference Δf. The first device can determine the M2 frequencies of the first sensing signal according to the number of frequencies M2 and the frequency difference Δf. Specifically, the m2th frequency of the M2 frequencies of the first sensing signal is (m2-1)Δf, wherein m2 is an integer less than or equal to M2 and greater than or equal to 1. That is, the frequencies of the first sensing signal can be {0, Δf, 2Δf, …, (M2-1)Δf}. For example, if the configuration information of the sensing signal indicates that the frequency difference is 1 kHz, the fourth frequency of the first sensing signal is (4-1)*1 kHz=3 kHz. The specific implementation is not limited herein.

[0320] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2 and the sensing bandwidth BW s . The first device can determine the M2 frequencies of the first sensing signal according to the number of frequencies M2 and the sensing bandwidth BWs determines M2 frequencies of the first sensing signal. Specifically, an m2th frequency of the M2 frequencies of the first sensing signal is (m2-1)BW s / M2. That is, the frequencies of the first sensing signal can be {0, BW s / M2, 2BW s / M2, …, (M2-1)BW s / M2} respectively. For example, if the configuration information of the sensing signal indicates that the number of frequencies is 6 and the configuration information of the sensing signal indicates that the sensing bandwidth is 2kHZ, the fourth frequency of the first sensing signal is (4-1)*2kHZ / 6=1kHZ, which is not limited here.

[0321] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2, the frequency difference Δf and the sensing bandwidth BW s . The first device can determine M2 frequencies of the first sensing signal according to the number of frequencies M2, the frequency difference Δf and the sensing bandwidth BW s .

[0322] Specifically, an m2th frequency of the M2 frequencies of the first sensing signal can be (m2-1)Δf or (m2-1)BW s / M2. Wherein, m2 is an integer less than or equal to M2 and greater than or equal to 1. That is, the frequencies of the first sensing signal can be {0, Δf, 2Δf, …, (M2-1)Δf} respectively, or can be {0, BW s / M2, 2BW s / M2, …, (M2-1)BW s / M2} respectively.

[0323] Specifically, for m2 being an integer less than or equal to M2 / 2 and greater than or equal to 1, an m2th frequency of the M2 frequencies of the first sensing signal can be (m2-1)Δf; for m2 being an integer less than or equal to M2 and greater than M2 / 2, an m2th frequency of the M2 frequencies of the first sensing signal can be BW s -(M2-m2)Δf. Wherein, the frequency difference Δf is the frequency difference between every two of {frequency domain unit 1, frequency domain unit 2, …, frequency domain unit M2 / 2} carrying the first sensing signal, and / or is the frequency difference between every two of {frequency domain unit M2 / 2, frequency domain unit 1+M2 / 2, …, frequency domain unit M2} carrying the first sensing signal.

[0324] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2, the frequency difference Δf and the frequency offset f o . The first device can determine M2 frequencies of the first sensing signal according to the number of frequencies M2, the frequency difference Δf and the frequency offset f oDetermine the M2 frequencies of the first sensing signal. Specifically, the m2th frequency among the M2 frequencies of the first sensing signal is (m2-1)Δf+f. o Where m2 can be an integer less than or equal to M2 and greater than or equal to 1. That is, the frequencies of the first sensing signal can be {f...} o ,Δf+f o ,2Δf+f o , ..., (M2-1)Δf+f o For example, if the configuration information of the sensing signal indicates a frequency difference of 1 kHz and the configuration information of the sensing signal indicates a frequency offset of 2 kHz, then the fourth frequency of the first sensing signal is (4-1)*1 kHz + 2 kHz = 5 kHz, and the specific frequency is not limited here.

[0325] Optionally, the configuration information for the sensing signal indicates the number of frequencies M2 and the sensing bandwidth BW. s and frequency offset f o The first device can determine the number of frequencies (M2) and the sensing bandwidth (BW). s and frequency offset f o Determine the M2 frequencies of the first sensing signal. Specifically, the m2th frequency among the M2 frequencies of the first sensing signal is (m2-1)BW. s / M2+f o In other words, the frequencies of the first sensing signal can be {f}. o BW s / M2+f o 2BW s / M2+f o ..., (M2-1)BW s / M2+f o For example, if the configuration information of the sensing signal indicates 6 frequencies, and the configuration information of the sensing signal indicates a sensing bandwidth of 2kHz, and the configuration information of the sensing signal indicates a frequency difference of 2kHz, then the fourth frequency of the first sensing signal is (4-1)*2kHz / 6+2kHz=3kHz, and the specific frequency is not limited here.

[0326] It should be understood that the number of frequencies M2, the frequency difference Δf, and the sensing bandwidth BW s The relationship between them is: Δf = BW s / M、M=BW s / Δf or BW s = any term in M*Δf.

[0327] It should be understood that the frequency offset f o The default value is 0, and the frequency offset f o It can be 0 or any other value; no specific limit is specified here.

[0328] In the embodiments of the present application, the configuration information of the sensing signal enables the first device to flexibly configure the M2 frequencies of the first sensing signal.

[0329] As a possible implementation, the number of frequencies M2 in the configuration information of the sensing signal can be determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the frequency difference Δf in the configuration information of the sensing signal can be determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the sensing bandwidth BW s in the configuration information of the sensing signal can be determined by any one of the sensing service level, the channel quality measurement result or the signal energy.

[0330] In a possible implementation, the first device can determine the number of frequencies M2 according to the sensing service level of the first sensing signal; and / or, can determine the frequency difference Δf according to the sensing service level of the first sensing signal; and / or, can determine the sensing bandwidth BW s in the configuration information of the first sensing signal according to the sensing service level of the first sensing signal.

[0331] Optionally, the higher the sensing service level of the first sensing signal is, the greater the value of M2 is, or in other words, the lower the sensing service level of the first sensing signal is, the smaller the value of M2 is.

[0332] Optionally, the higher the sensing service level of the first sensing signal is, the smaller the value of Δf is, or in other words, the lower the sensing service level of the first sensing signal is, the greater the value of Δf is.

[0333] Optionally, the higher the sensing service level of the first sensing signal is, the greater the value of BW s is, or in other words, the lower the sensing service level of the first sensing signal is, the smaller the value of BW s is.

[0334] In another possible implementation, the first device can determine the number of frequencies M2 according to the channel quality measurement result of the first sensing signal; and / or, can determine the frequency difference Δf according to the channel quality measurement result of the first sensing signal; and / or, can determine the sensing bandwidth BW s in the configuration information of the first sensing signal according to the channel quality measurement result of the first sensing signal.

[0335] Optionally, the better the channel quality measurement result of the first sensing signal is, the smaller the value of M2 is, or in other words, the worse the channel quality measurement result of the first sensing signal is, the greater the value of M2 is.

[0336] Optionally, the better the channel quality measurement result of the first sensing signal is, the greater the value of Δf is, or in other words, the worse the channel quality measurement result of the first sensing signal is, the smaller the value of Δf is.

[0337] Optionally, the better the channel quality measurement result of the first sensing signal is, the smaller the value of BW s , and it can also be said that the worse the channel quality measurement result of the first sensing signal is, the larger the value of BW s .

[0338] The description of the channel quality measurement result can refer to the above embodiments, and will not be repeated here.

[0339] In another possible implementation, the first device can determine the number of frequencies M2 according to the signal energy of the first sensing signal; and / or, can determine the frequency difference Δf according to the signal energy of the first sensing signal; and / or, can determine the sensing bandwidth BW s according to the signal energy of the first sensing signal.

[0340] Optionally, the lower the signal energy of the first sensing signal is, the larger the value of M2 is, and it can also be said that the higher the signal energy of the first sensing signal is, the smaller the value of M2 is.

[0341] Optionally, the lower the signal energy of the first sensing signal is, the smaller the value of Δf is, and it can also be said that the higher the signal energy of the first sensing signal is, the larger the value of Δf is.

[0342] Optionally, the lower the signal energy of the first sensing signal is, the larger the value of BW s is, and it can also be said that the higher the signal energy of the first sensing signal is, the smaller the value of BW s is.

[0343] The description of the signal energy can refer to the above embodiments, and will not be repeated here.

[0344] It should be noted that whether the first device selects the first sensing signal with different phases or the first sensing signal with different frequencies can be determined according to at least one of the sensing bandwidth BW s , the phase difference Δθ, the distance d1 between the sensing receiving end and the sensing transmitting end, the carrier frequency f c of the first sensing signal, or the target distance d2.

[0345] Optionally, when the sensing bandwidth is less than or equal to a first bandwidth threshold, the first sensing signal with different phases is used; and when the sensing bandwidth is greater than or equal to the first bandwidth threshold, the first sensing signal with different frequencies is used.

[0346] Optionally, when the sensing phase difference is less than a first phase threshold, the first sensing signal with different phase is used. When the sensing phase difference is greater than the first phase threshold, the first sensing signal with different frequency is used. The sensing phase difference can be understood as the phase interval between the maximum phase and the minimum phase of the M2 first sensing signals. The phase can be understood as the initial phase. For example, the first phase threshold can be Any one of the preceding embodiments.

[0347] Optionally, when the distance d1 between the sensing receiving end and the sensing sending end is less than a first distance threshold, the first sensing signal with different phase is used. When the distance d1 between the sensing receiving end and the sensing sending end is greater than the first distance threshold, the first sensing signal with different frequency is used.

[0348] Optionally, when the carrier frequency f of the first sensing signal is less than a first carrier frequency threshold, the first sensing signal with different frequency is used. When the carrier frequency f of the first sensing signal is greater than the first carrier frequency threshold, the first sensing signal with different phase is used. c c

[0349] Optionally, when the target distance d2 is greater than the first distance threshold, the first sensing signal with different phase is used. When the target distance d2 is less than the first distance threshold, the first sensing signal with different frequency is used. The target distance d2 can be the distance between the sensing sending end, the target, and the sensing receiving end, or the distance between the target and the sensing receiving end, or the distance between the sensing sending end and the target.

[0350] Optionally, the terminal device reports a historical target distance, and the network device determines to use the first sensing signal with different frequency or different phase according to the historical target distance; or the terminal device determines to use the first sensing signal with different frequency or different phase according to the historical target distance, which is not limited here.

[0351] 1002, sending a first sensing signal;

[0352] The step 1002 can be executed by the first device or by a module (such as a processor, a chip, a chip system, a circuit, etc.) therein. For example, the first device sends the first sensing signal, and correspondingly, the second device receives the second sensing signal.

[0353] The sensing signal can propagate via the path of “sensing sending end-sensing target-sensing receiving end”, or via the path of “sensing sending end-sensing receiving end”, or via the path of “sensing sending end-interference / environment-sensing receiving end”. That is, the sensing signal can be the above single path, or a combination of the above paths. And the sum signal of the above paths is received at the sensing receiving end.​​

[0354] Therefore, with respect to the first sensing signal and the second sensing signal, the first sensing signal is transmitted by the sensing transmitter, the first sensing signal is reflected and / or scattered by the sensing target, and finally, the second sensing signal is received by the sensing receiver. The change of the second sensing signal compared with the first sensing signal includes the change caused by the reflection and / or scattering of the sensing target, for example, the change in the time domain and / or the frequency domain, and further for example, the change in the amplitude and / or the phase, which to some extent reflects the information of the sensing target.

[0355] It can be considered that the second sensing signal includes the signal received by the sensing receiver after the first sensing signal is reflected and / or scattered by the sensing target, and further, the second sensing signal can also include the first sensing signal directly received by the sensing receiver from the sensing transmitter; or, the second sensing signal is the signal received by the sensing receiver after the first sensing signal is reflected and / or scattered by the sensing target, that is, the second sensing signal can not include other signals; or, the second sensing signal is the first sensing signal, that is, although the first sensing signal is reflected and / or scattered by the sensing target, it is considered that the information carried by the second sensing signal and the first sensing signal is unchanged; or, the second sensing signal includes the first sensing signal, and further, the second sensing signal can also include other signals.

[0356] The first sensing signal includes M2 components or M2 parts, that is, the first sensing signal includes M2 sub-signals. Wherein, M2 is an integer greater than or equal to 1. Each sub-signal is a component or a part of the first sensing signal. The first sensing signal is carried on M2 frequency domain units, each frequency domain unit carries a component of the first sensing signal, or each frequency domain unit carries a part of the first sensing signal. The first sensing signal carried on the M2 frequency domain units can be referred to as: M2 sub-signals of the first sensing signal, M2 first sensing signals, or simply referred to as the first sensing signal. Exemplarily, the frequency domain unit is RE, and the first sensing signal can be carried by M2 REs.

[0357] Optionally, the first sensing signal includes a quasi-colocation (QCL) relationship between the plurality of sub-signals.

[0358] The first sensing signal can have M1 different phases, or can have M2 different frequencies, which are described as follows:

[0359] 1) The first sensing signal has M1 different phases;

[0360] In a possible implementation, the first sensing signal is carried on different frequency domain units of the same time domain unit. For M2=M1, the first sensing signal on each of the M2=M1 frequency domain units has a different phase. For M2>M1, of the M2 frequency domain units carrying the first sensing signal, the first sensing signal carried on the M1 frequency domain units has M1 different phases, respectively. The above two cases correspond to the first sensing signal having M1 different phases.

[0361] In the embodiments of the present application, the first sensing signal is carried on M2 frequency domain units, which can also be understood as that the first sensing signal is mapped on the M2 frequency domain units. That is, each frequency domain unit maps a component of the first sensing signal, or each frequency domain unit maps part of the first sensing signal. Of the M2 frequency domain units mapping the first sensing signal, the first sensing signal mapped on the M1 frequency domain units has M1 different phases.

[0362] 2) The first sensing signal can have M2 different frequencies.

[0363] The M1 frequency domain units carrying the first sensing signal correspond to M2 different frequencies of the first sensing signal. The first sensing signal can be carried on the same time domain unit or different time domain units, or can be carried on the same frequency domain unit or different frequency domain units.

[0364] In a possible implementation, the first sensing signal is carried on different frequency domain units of the same time domain unit. For example, the first sensing signal is carried on M2 REs of the same symbol. That is, the first sensing signal can be transmitted on the REs corresponding to {f1, f2, … fM2}, respectively. For example, the first sensing signal can be transmitted on the REs corresponding to {f1, f2, … fM2} of the same symbol, as shown in FIG. 11. M2} corresponding REs. Taking two sub-signals included in the first sensing signal as an example, the signal of sub-signal 1 can be represented as exp(2jπf1t), and the signal of sub-signal 2 can be represented as exp(2jπf2t+jθ). Wherein, the phase difference (or initial phase difference) of sub-signal 1 and sub-signal 2 is Δθ or θ. Wherein, f1 and f2 represent that the two sub-signals of the first sensing signal are carried on different frequency domain units. Specifically, as shown in FIG. 11, sub-signal 1 is transmitted on the RE corresponding to f1 of symbol 1, and sub-signal 2 is transmitted on the RE corresponding to f2 of symbol 1. Wherein, f1 and f2 represent that the first sensing signal is carried on different frequency domain units. |f1-f2| represents the frequency difference of the two sub-signals included in the first sensing signal.

[0365] In another possible implementation, the first sensing signal is carried on the same frequency domain unit of different time domain units. For example, the first sensing signal is carried on M2 REs and M2 symbols. Taking two sub-signals of the first sensing signal as an example, the signal of sub-signal 1 can be expressed as exp(2jπf1t), and the signal of sub-signal 2 can be expressed as exp(2jπf1t+jθ). The phase difference (or initial phase difference) between the sub-signal 1 and the sub-signal 2 is Δθ or θ. f1 indicates that the two sub-signals of the first sensing signal are carried on the same frequency domain unit. Specifically, as shown in FIG. 12, the sub-signal 1 is sent on the RE corresponding to f1 in symbol 1, and the sub-signal 2 is sent on the RE corresponding to f1 in symbol 3.

[0366] In another possible implementation, the first sensing signal is carried on different frequency domain units of different time domain units. For example, the first sensing signal is carried on M2 REs and M2 symbols. Taking two sub-signals of the first sensing signal as an example, as shown in FIG. 13, the sub-signal 1 is sent on the RE corresponding to f1 in symbol 1, and the sub-signal 2 is sent on the RE corresponding to f2 in symbol 3. The first sensing signal can also have other sending manners, which are not limited herein. f1 and f2 indicate that the first sensing signal is carried on different frequency domain units. |f1-f2| indicates the frequency difference between the two sub-signals included in the first sensing signal.

[0367] 3) The first sensing signal can have M1 different phases and M2 different frequencies;

[0368] In the M2 frequency domain units carrying the first sensing signal, M1 frequency domain units carry the first sensing signal with M1 different phases respectively, and M1 frequency domain units correspond to M2 different frequencies of the first sensing signal. The above two cases can be referred to, and details are not repeated herein.

[0369] It should be understood that, in the embodiments of the present application, the time domain unit can be replaced by other time domain units such as a slot, a subframe, a frame, and the frequency domain unit can be replaced by other frequency domain units such as an RB and a CCE.

[0370] The first device sends the first sensing signal on Y time domain units, Y being a positive integer, wherein: on the Y time domain units, the phase of the first sensing signal located on the same frequency domain unit is unchanged; and / or on the Y time domain units, the frequency domain unit of the first sensing signal is unchanged.

[0371] In the present embodiment, the time domain unit can be a symbol or a time slot, for example, a sensing symbol or a sensing time slot.

[0372] The first device can send Y first sensing signals on Y time domain units. The time domain range where the Y time domain units are located can be regarded as a first time window, that is, the Y time domain units can also be understood as the first time window. That is, the information of the sensing target is determined according to the first sensing signals accumulated in the first time window. The first time window can be understood as a sensing window. It can be understood that the number of first sensing signals sent by the Y time domain units in the first time window is Y.

[0373] Exemplarily, on the Y time domain units, the frequency domain units where the first sensing signals are located are the same. That is, on each of the Y time domain units, the first sensing signals are carried by the same frequency domain unit, or the first sensing signals are mapped on the same frequency domain unit. Wherein, the same frequency domain unit is the same M1 or M2 frequency domain units.

[0374] Exemplarily, on the Y time domain units, the frequency domain units where the sub-signals of the first sensing signals are located are the same. That is, on each of the Y time domain units, the sub-signals of the first sensing signals are carried by the same frequency domain unit, or the sub-signals of the first sensing signals are mapped on the same frequency domain unit. Wherein, the same frequency domain unit is the same M1 or M2 frequency domain units.

[0375] This is because the channel has frequency selective fading, and using the same frequency domain unit ensures as close as possible frequency selective fading on the Y time domain units, thereby increasing the reliability of sensing.

[0376] The first sensing signals are periodically sent on the Y time domain units, and the sending period is P. The period P of the first sensing signals can be determined according to the length T of the first time window win And / or the number Y of the first sensing signals in the first time window. Wherein, the length T of the first time window win Is determined by the sensing speed resolution and / or the sensing distance resolution. The number Y of the first sensing signals in the first time window is determined by the maximum sensing speed and / or the maximum sensing distance, or the period P of the first sensing signals is determined by the maximum sensing speed and / or the maximum sensing distance.

[0377] In this embodiment, the speed resolution v res Is determined according to the movement distance D b Of the sensing target and the length T win Of the first time window. The speed resolution v res , the movement distance D b Of the sensing target and the length T win Of the first time window satisfy the relationship: v res =2D b / T winFor example, in the respiratory sensing, D b is the distance of the chest movement when inhaling or exhaling. Taking D b = 1 cm as an example, the length of the first time window T win is 60 s, then the velocity resolution v res is 0.0003 m / s; correspondingly, if the velocity resolution v res = 0.0003 m / s is achieved, then the length of the first time window T win needs to be 60 s. Other examples can refer to the following Table 1.

[0378] Table 1: Determination examples of velocity resolution

[0379] In the respiratory sensing, the breath per minute (bpm) of the sensing target needs to be determined. The period of the first sensing signal can be determined according to the breath number resolution and / or the maximum breath number. The length of the first time window T win can be determined according to the breath number resolution (Abpm) and / or the maximum breath number (Max bpm ).

[0380] It should be noted that in the respiratory sensing, the velocity resolution can be understood as the breath number resolution, for example, the resolution of breath number per second or the resolution of breath number per minute. The maximum velocity can be understood as the maximum breath number, for example, the maximum breath number per second or the maximum breath number per minute.

[0381] For example, the breath number resolution Abpm is determined according to the velocity resolution v res . The breath number resolution Abpm and the velocity resolution v res satisfy the relationship: v res = D b · Abpm / 30, that is, Abpm = 30v res / D b . Taking D b = 1 cm as an example, when Abpm is 1, v res ≈ 0.0003 m / s; correspondingly, when v res = 0.0003 m / s, Abpm ≈ 1. Other examples can refer to the following Table 2.

[0382] Table 2: Relationship examples of breath number resolution Abpm and velocity resolution v res in the respiratory sensing

[0383] The breath number resolution Abpm and the length of the first time window T win satisfy the relationship: Abpm = 60 / Twin For example, if a resolution of Δbpm ≤ 1 is required, a time-domain window of at least 60 s is needed. As another example, if a resolution of Δbpm ≤ 2 is required, a time-domain window of at least 30 s is needed. And as yet another example, if a resolution of Δbpm ≤ 3 is required, a time-domain window of at least 20 s is needed. Other examples can be found in Table 1 above.

[0384] Maximum number of breaths bpm The duration Tw of the first time window and the number of time domain units Y satisfy the following relationship: For example, if it is necessary to perceive Max bpm If the value is 60, then at least 120 cycles of the first sensing signal are needed within the first time window of 60 seconds. For example, if it is necessary to sense Max... bpm If the value is 30, then at least 60 cycles of the first sensing signal are required within the first time window of 60 seconds. Other examples can be found in Table 1 above.

[0385] It should be understood that the maximum number of breaths (Max) bpm The relationship between respiratory rate resolution Δbpm and the following is satisfied: No specifics are specified here.

[0386] The period P of the first sensing signal and the duration T of the first time window. win The number of time-domain units Y satisfies the following relationship: P = T win / Y. For example, with T win Taking a time period of 60 seconds and Y ≥ 120 as an example, the period P is at most 500 ms, i.e., P ≤ 500 (ms). For another example, taking T... win For example, if the time is 30 seconds and Y≥30, then the required period P is at most 1000 ms, i.e., P≤1000(ms). Other examples can be found in Table 3 below.

[0387] Table 3: Example of determining the number of time-domain units and / or the period of the first sensing signal in respiratory sensing

[0388] 1003. Determine the M1 phases and / or M2 frequencies of the second sensing signal;

[0389] Step 1003 can be performed by the second device or by a module therein (e.g., a processor, chip, chip system, circuit, etc.). Taking the second device as an example, the second device determines M1 phases and / or M2 frequencies of the second sensing signal.

[0390] As a possible implementation, the second sensing signal is located on M1 frequency domain units, and the M1 phases of the second sensing signal include the M1 phases of the second sensing signal transmitted on the M1 frequency domain units; and / or, the second sensing signal is located on M2 frequency domain units, and the M2 frequencies of the second sensing signal include the frequencies of the M2 frequency domain units.

[0391] In the embodiments of the present application, M1 and M2 are both positive integers. M2 can be greater than M1, or M2 can be equal to M1. This is not limited here.

[0392] In the embodiments of the present application, the frequency domain unit can be an RE. For example, the 4 frequency domain units are RE1, RE2, RE3, and RE4 respectively. The M1 phases of the second sensing signal can be the phases of the second sensing signal carried on RE1, RE2, RE3, and RE4; and the M2 frequencies of the second sensing signal can be the frequencies corresponding to RE1, RE2, RE3, and RE4.

[0393] In the embodiments of the present application, the second sensing signal is located on M1 frequency domain units, and the second sensing signal carried on the M1 REs can be referred to as M1 second sensing signals or simply as the second sensing signal; or, the second sensing signal is located on M2 frequency domain units, and the second sensing signal carried on the M2 REs can be referred to as M2 second sensing signals or simply as the second sensing signal.

[0394] The second sensing signal can have M1 different phases or M2 different frequencies, which are described as follows:

[0395] 1. The second sensing signal has M1 different phases;

[0396] M1 is an integer greater than or equal to 1. For example, M1 can be any one of {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}. M1 can also be an integer greater than or equal to 16, which is not limited here. In the embodiments of the present application, the phase can be understood as an initial phase. That is, having M1 different phases can be understood as having M1 different initial phases.

[0397] wherein the phase can be greater than or equal to 0, and / or less than or equal to π, or greater than or equal to π, and / or less than or equal to 2π. For example, the phases are For another example, the phases are

[0398] The second sensing signal includes M2 sub-signals, the M2 sub-signals are signals generated by the same sequence, or are sub-signals generated by different sequences. The sub-signals of the second sensing signal are the second sensing signals carried on each frequency domain unit. For example, the second sensing signal includes Then, the four frequency domain units respectively map the sub-signals A1·e j0 , A4·e jπ3 / 4 .

[0399] The second sensing signal has M1 different phases. The M2 sub-signals included in the second sensing signal are respectively mapped to M2 frequency domain units, and the sub-signals of the second sensing signal carried on each frequency domain unit have a corresponding phase.

[0400] The second sensing signal has M1 different phases includes two possible implementation manners. In one possible implementation manner, M1 is equal to M2, that is, the sub-signals of the second sensing signal carried on each frequency domain unit have different phases. In one possible implementation manner, M1 is less than M2, and among the M2 frequency domain units carrying the second sensing signal, the sub-signals of the second sensing signal carried on M1 frequency domain units have different phases. The second sensing signal has M1 different phases.

[0401] The second sensing signal is mapped to M2 frequency domain units (M2 is a positive integer), and the second sensing signal carried on each frequency domain unit is a sub-signal included in the second sensing signal. That is, the M2 frequency domain units respectively carry the M2 sub-signals included in the second sensing signal.

[0402] The phase of the second sensing signal can be understood as the phase of the sub-signals included in the second sensing signal. The phase of the sub-signals included in the second sensing signal is the phase corresponding to the frequency domain unit carrying each sub-signal. It can be understood that since the second sensing signal is mapped to M2 frequency domain units, the sub-signals included in the second sensing signal include M2 phases. In the embodiment of the present application, the phase of the sub-signals included in the second sensing signal can be simply denoted as the phase of the second sensing signal. For example, the second sensing signal includes M2 sub-signals, and the M2 sub-signals respectively have M2 phases. That is, the second sensing signal has M1 different phases can be understood as: the second sensing signal includes M2 sub-signals, and the M2 sub-signals respectively have M2 phases, and M1 of the M2 phases are different.

[0403] The frequency of the sub-signal included in the second sensing signal is the frequency corresponding to the frequency domain element carrying each sub-signal. It can be understood that since the second sensing signal is mapped to M2 frequency domain elements, the sub-signal included in the second sensing signal includes M2 frequencies. The frequency of the sub-signal included in the second sensing signal can be any one of the minimum value, the maximum value, the average value, and the median value of the M2 frequencies. In the embodiments of the present application, the frequency of the sub-signal included in the second sensing signal can be simply denoted as the frequency of the second sensing signal. The relationship between the wavelength λ and the frequency f satisfies λ = c / f.

[0404] The wavelength of the sub-signal included in the second sensing signal is the wavelength corresponding to the frequency domain element carrying each sub-signal. It can be understood that since the second sensing signal is mapped to M2 frequency domain elements, the sub-signal included in the second sensing signal includes M2 wavelengths. The wavelength of the sub-signal included in the second sensing signal can be any one of the minimum value, the maximum value, the average value, and the median value of the M2 wavelengths. In the embodiments of the present application, the wavelength of the sub-signal included in the second sensing signal can be simply denoted as the wavelength of the second sensing signal. The relationship between the wavelength λ and the frequency f satisfies λ = c / f.

[0405] In a possible implementation, the M1 different phases of the second sensing signal include: when the second sensing signal is mapped to M1 frequency domain elements, the second sensing signal on each frequency domain element has a different phase. It can be understood that the second sensing signal respectively carried on the M1 frequency domain elements is the M1 sub-signals included in the second sensing signal. For example, the second sensing signal includes The second sensing signal is mapped to 4 frequency domain elements, and the second sensing signal on each frequency domain element has a different phase, and the M1 = 4 different phases are

[0406] In another possible implementation, the M1 different phases of the second sensing signal include: in the frequency domain elements (such as M2 frequency domain elements) carrying the second sensing signal, the second sensing signal carried on the M1 frequency domain elements respectively has M1 different phases. It can be understood that the second sensing signal respectively carried on the frequency domain elements is the sub-signal included in the second sensing signal. For example, the second sensing signal and / or the second sensing signal includes The second sensing signal is mapped to 8 frequency domain elements, and the second sensing signal and / or the second sensing signal carried on 4 of the frequency domain elements has M1 = 4 different phases, and the 4 different phases are

[0407] As a possible implementation manner, the M1 phases of the second sensing signal are determined according to the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number of phases M1, the phase difference Δθ, the phase offset θ o , or a phase list. The number of phases M1 is the number of phases included in the second sensing signal. The phase difference Δθ is the difference between two adjacent phases, which can be the phase difference between each two phases in the plurality of phases included in the second sensing signal; or, it can also be the phase difference between the sub-signals carried by each two frequency domain units carrying the second sensing signal. The phase offset θ o is the smallest phase in the plurality of phases included in the second sensing signal; or, it is the phase of the sub-signal carried by the frequency domain unit with the smallest index in the plurality of frequency domain units carrying the second sensing signal.

[0408] For example, the way of determining the m1th phase of the M1 phases of the second sensing signal can be applied to determine any phase of the M1 phases of the second sensing signal. Wherein m1 is an integer less than or equal to M1 and greater than or equal to 1. The m1th phase of the M1 phases of the second sensing signal can be understood as: the second sensing signal is mapped to M1 frequency domain units, and the m1th phase is the phase of the second sensing signal on the m1th frequency domain unit; or, in the frequency domain units (such as M2 frequency domain units) carrying the second sensing signal, the m1th phase is the phase of the second sensing signal carried on the m1th frequency domain unit in the M1 frequency domain units, which is not limited here.

[0409] It should be understood that the m1th phase of the M1 phases of the second sensing signal can also be understood as: the phase of the m1th second sensing signal in the M1 second sensing signals, wherein the phase of each second sensing signal in the M1 second sensing signals is different.

[0410] Optionally, the configuration information of the sensing signal indicates a phase list, or the configuration information of the sensing signal indicates a pre-defined phase list, or the protocol pre-defines a phase list. The second device can determine the M1 phases of the second sensing signal through the phase list. Specifically, the phase list can include M1 pre-configured phases. For example, the second device can determine the M1 phases of the second sensing signal according to the phase list indicated by the configuration information of the sensing signal. The phase list is , which means that the two phases of the second sensing signal can be The phase list is , which means that the four phases of the second sensing signal can be The phase list is , which means that the eight phases of the second sensing signal can be which is not limited here.

[0411] Optionally, the configuration information of the sensing signal indicates a phase number M1. The second sensing signal and / or the M1 phases of the second sensing signal can be determined according to the phase number M1. Specifically, the m1th phase of the M1 phases of the second sensing signal is (m1-1)π / M1. Wherein, m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the second sensing signal can be {0, π / M1, 2π / M1, …, (M1-1)π / M1} respectively. For example, if the configuration information of the sensing signal indicates that the phase number is 8, the fourth phase of the second sensing signal is The specific embodiments are not limited here.

[0412] Optionally, the configuration information of the sensing signal indicates a phase difference Δθ. The second device can determine the M1 phases of the second sensing signal according to the phase difference Δθ. Specifically, the m1th phase of the M1 phases of the second sensing signal is (m1-1)Δθ. Wherein, m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the second sensing signal can be {0, Δθ, 2Δθ, …, (M1-1)Δθ} respectively. For example, if the configuration information of the sensing signal indicates that the phase difference is , the third phase of the second sensing signal is The specific embodiments are not limited here.

[0413] Optionally, the configuration information of the sensing signal indicates a phase number M1 and a phase difference Δθ. The M1 phases of the second sensing signal can be determined according to the phase number M1 and the phase difference Δθ. Specifically, the m1th phase of the M1 phases of the second sensing signal is (m1-1)Δθ or (m1-1)π / M1. Wherein, m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the second sensing signal can be {0, Δθ, 2Δθ, …, (M1-1)Δθ} respectively, or can be For example, if the configuration information of the sensing signal indicates that the phase number is 8 and the phase difference is , the phases of the second sensing signal are The specific embodiments are not limited here.

[0414] Optionally, the configuration information of the sensing signal indicates a phase number M1 and a phase offset θ o . The second device can determine the M1 phases of the second sensing signal according to the phase number M1 and the phase offset θ o . Specifically, the m1th phase of the M1 phases of the second sensing signal is (m1-1)π / M1+θ o. Wherein, m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the second sensing signal can be {θ For example, if the second sensing signal has 6 phases and the phase offset is the 4th phase of the second sensing signal is The specific case is not limited here.

[0415] Optionally, the configuration information of the sensing signal indicates the phase difference Δθ and the phase offset θ o The second device can determine the M1 phases of the second sensing signal according to the phase difference Δθ and the phase offset θ o . Specifically, the m1th phase of the M1 phases of the second sensing signal is (m1-1)Δθ+θ o . Wherein, m1 can be an integer less than or equal to M1 and greater than or equal to 1. That is, the phases of the second sensing signal can be {θ o , Δθ+θ o , 2Δθ+θ o , …, (M1-1)Δθ+θ o}. For example, if the phase difference is and the phase offset is the 3rd phase of the second sensing signal is The specific case is not limited here.

[0416] Optionally, the configuration information of the sensing signal indicates the number of phases M1, the phase difference Δθ and the phase offset θ o The M1 phases of the second sensing signal can be determined according to the number of phases M1, the phase difference Δθ and the phase offset θ o . That is, the phases of the second sensing signal can be {θ o , Δθ+θ o , 2Δθ+θ o , …, (M1-1)Δθ+θ o} or

[0417] It should be understood that the number of phases M1 and the phase difference Δθ satisfy the relationship: Δθ=π / M1, or M1=π / Δθ.

[0418] It should be understood that the default value of the phase offset θ o is 0, and the phase offset θ o may be 0 or other values, and the specific case is not limited here.

[0419] In the embodiments of the present application, the configuration information of the sensing signal enables the second device to flexibly configure the M1 phases of the second sensing signal.

[0420] As a possible implementation, the number of phases M1 is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy; and / or, the phase difference Δθ is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy.

[0421] In a possible implementation, the second device can determine the number of phases M1 according to the distance resolution, and / or, can determine the phase difference Δθ according to the distance resolution. The distance resolution is used to indicate the minimum unit of the target moving distance that can be distinguished. The distance resolution can be related to the wavelength λ of the second sensing signal, i.e., under different distance resolutions, the information of the sensing target is determined by using a suitable wavelength of the second sensing signal. The conditions met by the distance resolution suitable for self-generation and self-reception mode sensing and the conditions met by the distance resolution suitable for self-generation and other-reception mode sensing are described below based on the wavelength λ of the second sensing signal.

[0422] In the embodiments of the present application, the wavelength λ of the second sensing signal is the wavelength of the sub-signal included in the second sensing signal.

[0423] In the embodiments of the present application, "greater than or equal to" can be replaced by "greater than", i.e., "≥" can be replaced by ">"; "less than or equal to" can be replaced by "less than", i.e., "≤" can be replaced by "<", which is not limited here.

[0424] In the present embodiments, the at least X different phases can be understood as: X is less than or equal to M1, or X is less than or equal to π / Δθ. Correspondingly, the minimum value used to indicate the number of phases M1 can also be understood as X indicating the maximum value of the phase difference Δθ. That is, the phase difference Δθ and / or the number of phases M1 of the second sensing signal can be determined according to the distance resolution and the wavelength.

[0425] 1) Case 1:

[0426] Optionally, case 1 can be applied to self-generation and self-reception mode sensing, including network device self-generation and self-reception or terminal device self-generation and self-reception mode sensing.

[0427] Optionally, if the distance resolution is less than or equal to λ / X, the second sensing signal includes at least X different phases, λ is the wavelength of the second sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer and X is less than or equal to M1.

[0428] For example, if the distance resolution is ≤ λ / 2, then the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2.

[0429] For example, if the distance resolution is ≤ λ / 3, then the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3.

[0430] For example, if the distance resolution is ≤ λ / 4, then the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, which is not limited here.

[0431] Optionally, if the distance resolution is greater than or equal to λ / 2X, the second sensing signal includes at least X different phases, λ is the wavelength of the second sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0432] For example, if the distance resolution is ≥ λ / 4, then the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For example, if the distance resolution is ≥ λ / 6, then the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For example, if the distance resolution is ≥ λ / 8, then the second sensing signal needs to have at least 4 different phases, which is not limited here, or the phase difference of the second sensing signal needs to be at least π / 2.

[0433] Optionally, if the distance resolution is less than or equal to λ / X and greater than or equal to λ / 2X, i.e. λ / 2X≤ distance resolution≤ λ / X, the second sensing signal includes at least X different phases, λ is the wavelength of the second sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0434] For example, if the distance resolution is ≥ λ / 4, then the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For example, if the distance resolution is ≥ λ / 6, then the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For example, if the distance resolution is ≥ λ / 8, then the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, which is not limited here.

[0435] 2) Case 2:

[0436] Optionally, the case 2 can be applied to the sensing of the self-heal mode. The self-heal mode includes at least one of the terminal device-terminal device double station mode, the network device-network device double station mode, the network device-terminal device double station mode, or the terminal device-network device double station mode.

[0437] Optionally, if the distance resolution is less than or equal to 2λ / X, i.e., the distance resolution ≤ 2λ / X, the second sensing signal includes at least X different phases, λ is the wavelength of the second sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0438] For example, if the distance resolution ≤ λ, the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, if the distance resolution ≤ 2λ / 3, the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For another example, if the distance resolution ≤ λ / 2, the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, which is not limited here.

[0439] Optionally, if the distance resolution is greater than or equal to λ / X, i.e., the distance resolution ≥ λ / X, the second sensing signal includes at least X different phases, λ is the wavelength of the second sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0440] For example, if the distance resolution ≥ λ / 2, the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, if the distance resolution ≥ λ / 3, the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For another example, if the distance resolution ≥ λ / 4, the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, which is not limited here.

[0441] Optionally, if the distance resolution is less than or equal to 2λ / X and greater than or equal to λ / X, the second sensing signal includes at least X different phases, λ is the wavelength of the second sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0442] For example, λ / 2≤distance resolution≤λ, the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, λ / 3≤distance resolution≤2λ / 3, the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For another example, λ / 4≤distance resolution≤λ / 2, the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, which is not limited here.

[0443] It should be understood that the distance resolution is also related to the frequency f of the second sensing signal, where the wavelength λ and the frequency f satisfy λ=c / f. c represents the speed of electromagnetic waves in vacuum, also known as the speed of light. Based on the frequency f of the second sensing signal, the conditions satisfied by the distance resolution suitable for self-generating self-receiving mode sensing and the conditions satisfied by the distance resolution suitable for self-generating other-receiving mode sensing are described below.

[0444] 3) Case 3:

[0445] Optionally, case 3 can be applied to self-generating self-receiving mode sensing, including network device self-generating self-receiving or terminal device self-generating self-receiving mode sensing.

[0446] Optionally, if the distance resolution is less than or equal to c / (fX), i.e., distance resolution≤c / (fX), the second sensing signal needs to have at least X different phases, f is the frequency of the second sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0447] For example, distance resolution≤c / (2f), the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, distance resolution≤c / (3f), the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For another example, distance resolution≤c / (4f), the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, which is not limited here.

[0448] Optionally, if the distance resolution is greater than or equal to c / (2fX), i.e., distance resolution≥c / (2fX), the second sensing signal needs to have at least X different phases, f is the frequency of the second sensing signal, and X is used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0449] For example, if the distance resolution is ≥ c / (4f), then the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, if the distance resolution is ≥ c / (6f), then the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For yet another example, if the distance resolution is ≥ c / (8f), then the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, without limitation here.

[0450] Optionally, if the distance resolution is less than or equal to c / (fX) and greater than or equal to c / (2fX), i.e., c / (2fX) ≤ distance resolution ≤ c / (fX), then the second sensing signal needs to have at least X different phases, f being the frequency of the second sensing signal, and X being used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0451] For example, if c / (4f) ≤ distance resolution ≤ c / (2f), then the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, if c / (6f) ≤ distance resolution ≤ c / (3f), then the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For yet another example, if c / (8f) ≤ distance resolution ≤ c / (4f), then the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, without limitation here.

[0452] 4) Case 4:

[0453] Optionally, Case 4 can be applicable to sensing in a self-generated other-receiving mode. The self-generated other-receiving mode includes at least one of a terminal device-terminal device double-station mode, a network device-network device double-station mode, a network device-terminal device double-station mode, or a terminal device-network device double-station mode.

[0454] Optionally, if the distance resolution is less than or equal to 2c / (fX), i.e., distance resolution ≤ 2c / (fX), then the second sensing signal needs to have at least X different phases, f being the frequency of the second sensing signal, and X being used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0455] For example, if the distance resolution is ≤ c / f, then the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, if the distance resolution is ≤ 2f / (3f), then the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For yet another example, if the distance resolution is ≤ c / (2f), then the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, without limitation.

[0456] Optionally, if the distance resolution is greater than or equal to c / (fX), i.e., the distance resolution is ≥ c / (fX), then the second sensing signal needs to have at least X different phases, f being the frequency of the second sensing signal, and X being used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0457] For example, if the distance resolution is ≥ c / (2f), then the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, if the distance resolution is ≥ c / (3f), then the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For yet another example, if the distance resolution is ≥ c / (4f), then the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, without limitation.

[0458] Optionally, if the distance resolution is less than or equal to 2c / (fX) and greater than or equal to c / (fX), i.e., c / (fX) ≤ the distance resolution ≤ 2c / (fX), then the second sensing signal needs to have at least X different phases, f being the frequency of the second sensing signal, and X being used to indicate the minimum value of M1. X is a positive integer, and X is less than or equal to M1.

[0459] For example, if c / (2f) ≤ the distance resolution ≤ c / f, then the second sensing signal needs to have at least 2 different phases, or the phase difference of the second sensing signal needs to be at least π / 2. For another example, if c / (3f) ≤ the distance resolution ≤ 2c / (3f), then the second sensing signal needs to have at least 3 different phases, or the phase difference of the second sensing signal needs to be at least π / 3. For yet another example, if c / (4f) ≤ the distance resolution ≤ c / (2f), then the second sensing signal needs to have at least 4 different phases, or the phase difference of the second sensing signal needs to be at least π / 4, without limitation.

[0460] It should be understood that the distance resolution in the above cases 1 to 4 can be replaced by the target moving distance, or the dynamic range distance change, and the conditions met are unchanged, which will not be described here.

[0461] In the embodiments of the present application, by determining the minimum value of the phase number M1, or by determining the maximum value of the phase difference Δθ, the amplitude, signal strength and / or phase change of the second sensing signal caused by the target motion is as large as possible. For example, as shown in FIG. 14 and FIG. 15, if it is determined that the second sensing signal needs at least 4 different phases, when M1 is 2, that is, the second sensing signal has 2 different phases, the change of the second sensing signal is smaller when the sensing target moves at positions 2 and 4. When M1 is 4, that is, the second sensing signal has 4 different phases, there is at least one sub-signal of the second sensing signal with a larger change at each position, thereby facilitating subsequent signal processing.

[0462] In another possible implementation, the second device can determine the phase number M1 of the second sensing signal according to the sensing service level, and / or can determine the phase difference Δθ of the second sensing signal according to the sensing service level.

[0463] Optionally, the higher the sensing service level, the larger the M1 value, or in other words, the lower the sensing service level, the smaller the M1 value.

[0464] Optionally, the higher the sensing service level, the smaller the Δθ value, or in other words, the lower the sensing service level, the larger the Δθ value.

[0465] The information value of the sensing service includes at least one of the following: sensing speed accuracy, sensing speed resolution, sensing distance accuracy, sensing distance resolution, maximum sensing speed, maximum sensing distance. The size of the information value of the sensing service can represent the high and low of the sensing service level.

[0466] The high sensing service level can be understood as any one or combination of the following: high confidence, high positioning estimation accuracy, high speed estimation accuracy, small distance resolution, small speed resolution, short maximum sensing service delay, short refresh rate, low miss detection rate, and low false alarm rate.

[0467] The low sensing service level can be understood as any one or combination of the following: low confidence, low positioning estimation accuracy, low speed estimation accuracy, large distance resolution, large speed resolution, long maximum sensing service delay, long refresh rate, high miss detection rate, and high false alarm rate.

[0468] In another possible implementation, the second device can determine the number of phases M1 of the second sensing signal according to the channel quality measurement result. And / or, the phase difference Δθ of the second sensing signal can be determined according to the channel quality measurement result.

[0469] Optionally, the better the channel quality measurement result is, the smaller the M1 value is, or in other words, the worse the channel quality measurement result is, the larger the M1 value is.

[0470] Optionally, the better the channel quality measurement result is, the larger the Δθ value is, or in other words, the worse the channel quality measurement result is, the smaller the Δθ value is.

[0471] Optionally, the channel quality measurement result is a channel quality measurement result of the second sensing signal.

[0472] The better channel quality measurement result can be understood as any one or a combination of multiple of the following: a small CQI value, a large SNR, a large SINR, and a low CQI value. The small CQI value can include: the CQI value being less than or equal to a first CQI threshold, or the CQI value of the current measurement being less than or equal to the CQI value of the last measurement. The large SNR can include: the SNR value being greater than or equal to a first SNR threshold, or the SNR value of the current measurement being greater than or equal to the SNR value of the last measurement. The large SINR can include: the SINR value being greater than or equal to a first SINR threshold, or the SINR value of the current measurement being greater than or equal to the SINR value of the last measurement. The low CBR can include: the CBR value being less than or equal to a first CBR threshold, or the CBR value of the current measurement being less than or equal to the CBR value of the last measurement, which is not limited herein.

[0473] The worse channel quality measurement result can be understood as any one or a combination of multiple of the following: a large CQI value, a small SNR, a small SINR, and a high CBR. The large CQI value can include: the CQI value being greater than or equal to a second CQI threshold, or the CQI value of the current measurement being greater than or equal to the CQI value of the last measurement. The small SNR can include: the SNR value being less than or equal to a second SNR threshold, or the SNR value of the current measurement being less than or equal to the SNR value of the last measurement. The small SINR can include: the SINR value being less than or equal to a second SINR threshold, or the SINR value of the current measurement being less than or equal to the SINR value of the last measurement. The high CBR can include: the CBR value being greater than or equal to a second CBR threshold, or the CBR value of the current measurement being greater than or equal to the CBR value of the last measurement, which is not limited herein.

[0474] It should be noted that the first CQI threshold and the second CQI threshold can be the same value or different values, which is not limited herein.

[0475] In another possible implementation, the second device can determine the number of phases M1 of the second sensing signal according to the signal energy of the second sensing signal, and / or can determine the phase difference Δθ of the second sensing signal according to the signal energy of the second sensing signal.

[0476] Optionally, the lower the signal energy of the second sensing signal, the greater the value of M1, or in other words, the higher the signal energy of the second sensing signal, the smaller the value of M1.

[0477] Optionally, the lower the signal energy of the second sensing signal, the smaller the value of Δθ, or in other words, the higher the signal energy of the second sensing signal, the greater the value of Δθ.

[0478] Optionally, the lower the signal energy of the second sensing signal can be understood as low signal strength of the second sensing signal and / or large power backoff of the second sensing signal. The low signal strength can include: the signal strength is less than or equal to a first signal strength threshold, or the current signal strength is less than or equal to the last signal strength. The large power backoff can include: the power backoff is greater than or equal to a first power backoff threshold, or the current power backoff is greater than or equal to the last power backoff, which is not limited here.

[0479] Optionally, the lower the signal energy of the second sensing signal can be understood as high signal strength of the second sensing signal and / or small power backoff of the second sensing signal. The high signal strength can include: the signal strength is greater than or equal to a second signal strength threshold, or the current signal strength is greater than or equal to the last signal strength. The small power backoff can include: the power backoff is less than or equal to a second power backoff threshold, or the current power backoff is less than or equal to the last power backoff, which is not limited here.

[0480] In the embodiments of the present application, the second device configures sensing resources that are more suitable for the service demand, and determines in which cases more sensing resources are needed, and configures more resources for sensing services that need more resources, to ensure the reliability of the sensing services.

[0481] 2. The second sensing signal has M2 different frequencies;

[0482] M2 is an integer greater than or equal to 1. For example, M2 can be any one of {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}. M2 can also be an integer greater than or equal to 16, which is not limited here. In the embodiments of the present application, the frequency can also be understood as the carrier frequency. That is, having M2 different frequencies can be understood as having M2 different carrier frequencies.

[0483] The second sensing signal includes M2 sub-signals, and the M2 sub-signals are signals generated by the same sequence or sub-signals generated by different sequences. In a possible implementation, the M2 second sensing signals have M2 different frequencies. That is, the M2 sub-signals included in the second sensing signal are respectively mapped to M2 frequency domain units. The sub-signals are the second sensing signals carried on each frequency domain unit. For example, the second sensing signal includes M1=4 frequency domain units respectively map sub-signals A1·e j0 , A4·e jπ3 / 4 .

[0484] In a possible implementation, the M2 different frequencies of the second sensing signal include: frequencies corresponding to M2 frequency domain resources to which the second sensing signal is mapped. It can be understood that the second sensing signals respectively carried on the M2 frequency domain resources are the M2 sub-signals included in the second sensing signal.

[0485] The frequency of the second sensing signal can be understood as the frequency of the sub-signals included in the second sensing signal. Correspondingly, the frequency domain unit carrying the second sensing signal can be understood as the frequency domain unit carrying the sub-signals included in the second sensing signal. For example, the second sensing signal includes M2 sub-signals, and the M2 sub-signals respectively have M2 frequencies. That is, the second sensing signal having M2 different frequencies can be understood as: the second sensing signal includes M2 sub-signals, and the M2 sub-signals respectively have M2 frequencies, and the M2 frequencies are different.

[0486] The frequency of the sub-signals included in the second sensing signal is the frequency corresponding to the frequency domain unit carrying each sub-signal. It can be understood that, since the second sensing signal is mapped to M2 frequency domain units, the sub-signals included in the second sensing signal include M2 frequencies. The frequency of the sub-signals included in the second sensing signal can be any one of a minimum value, a maximum value, a mean value, and a median value of the M2 frequencies. In the embodiments of the present application, the frequency of the sub-signals included in the second sensing signal can be simply denoted as the frequency of the second sensing signal. The relationship between the wavelength λ and the frequency f satisfies λ=c / f.

[0487] The wavelength of the sub-signal included in the second sensing signal is the wavelength corresponding to the frequency domain unit carrying each sub-signal. It can be understood that, since the second sensing signal is mapped to M2 frequency domain units, the sub-signal included in the second sensing signal includes M2 wavelengths. The wavelength of the sub-signal included in the second sensing signal can be any one of the minimum value, the maximum value, the average value, and the median value of the M2 wavelengths. In the embodiments of the present application, the wavelength of the sub-signal included in the second sensing signal can be simply denoted as the wavelength of the second sensing signal. The relationship between the wavelength λ and the frequency f satisfies λ = c / f.

[0488] In a possible implementation, the second device can determine the M2 frequencies of the second sensing signal in a predefined manner. For example, the protocol can define that the second sensing signal can be located at both ends of a bandwidth part (BWP).

[0489] Optionally, the second sensing signal can be located at both ends of the BWP, and the second device can determine the M2 frequencies of the second sensing signal through the frequency position information of the BWP. For example, when M2 is greater than or equal to 2, the second sensing signal can be located at both ends of the BWP. The BWP can be understood as a BWP used for sensing, or a BWP carrying sensing services.

[0490] The highest RE with the highest RB index and the lowest RE with the lowest RB index in the BWP respectively carry the second sensing signal, or the RE with the highest index and the RE with the lowest index in the BWP respectively carry the second sensing signal.

[0491] It can be understood that the frequency domain unit carrying the second sensing signal includes the highest RE with the highest RB index in the BWP, the frequency domain unit carrying the second sensing signal includes the lowest RE with the lowest RB index in the BWP, or the frequency domain unit carrying the second sensing signal includes the RE with the highest index and the RE with the lowest index in the BWP.

[0492] For example, the frequency domain units carrying the second sensing signal include {frequency domain unit 1, frequency domain unit 2, …, frequency domain unit M2}. Among them, {frequency domain unit 1, frequency domain unit 2, …, frequency domain unit M2 / 2} is located at one end of the BWP, and {frequency domain unit M2 / 2, frequency domain unit 1+M2 / 2, …, frequency domain unit M2} is located at the other end of the BWP. Among them, frequency domain unit 1 is the lowest RE with the lowest RB index in the BWP, or is the RE with the lowest index in the BWP; frequency domain unit M2 is the highest RE with the highest RB index in the BWP, or is the RE with the highest index in the BWP. Further, {frequency domain unit 1, frequency domain unit 2, …, frequency domain unit M2 / 2} located at one end of the BWP can be continuous frequency domain units, for example, continuous REs; similarly, {frequency domain unit M2 / 2, frequency domain unit 1+M2 / 2, …, frequency domain unit M2} located at the other end of the BWP can be continuous frequency domain units, for example, continuous REs.

[0493] As a possible implementation, the M2 frequencies of the second sensing signal are determined by the configuration information of the sensing signal, and the configuration information of the sensing signal includes at least one of the following: the number of frequencies M2, the frequency difference Δf, the sensing bandwidth BW s , the frequency offset f o or the frequency location information. Among them, Δf is the difference between two adjacent frequencies, which can be the frequency difference between any two frequencies in the M2 frequencies of the second sensing signal. The sensing bandwidth BW s can be understood as the bandwidth of the second sensing signal, or the bandwidth of the frequency domain unit carrying the second sensing signal. Among them, the frequency domain unit bandwidth of the second sensing signal is the frequency interval between the maximum frequency and the minimum frequency in the frequency domain unit carrying the second sensing signal.

[0494] For example, the way to determine the m2th frequency of the M2 frequencies of the second sensing signal can be applied to determine any frequency of the M2 frequencies of the second sensing signal. Among them, m2 is an integer less than or equal to M2 and greater than or equal to 1. The m2th frequency of the M2 frequencies of the second sensing signal can be understood as: the second sensing signal is mapped to M2 frequency domain units, and the m2th frequency is the frequency of the second sensing signal on the m2th frequency domain unit of the M2 frequency domain units. The specific place is not limited here.

[0495] It should be understood that the m2th frequency of the M2 frequencies of the second sensing signal can also be understood as: the frequency of the m2th second sensing signal of the M2 second sensing signals, wherein the frequency of each second sensing signal of the M2 second sensing signals is different.

[0496] Optionally, the configuration information of the sensing signal indicates frequency location information. The second device can determine the M2 frequencies of the second sensing signal through the frequency location information. Specifically, when M2 is equal to 2, i.e., the second sensing signal has two different frequencies, the second sensing signal can be located at both ends of the BWP, i.e., the highest RE with the highest RB index and the lowest RE with the lowest RB index in the BWP respectively carry the second sensing signal, or the RE with the highest index and the RE with the lowest index in the BWP respectively carry the second sensing signal. Wherein, the BWP can be understood as a BWP for sensing, or a BWP carrying sensing service.

[0497] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2 and the frequency difference Δf. The second device can determine the M2 frequencies of the second sensing signal according to the number of frequencies M2 and the frequency difference Δf. Specifically, the m2th frequency of the M2 frequencies of the second sensing signal is (m2-1)Δf, wherein m2 is an integer less than or equal to M2 and greater than or equal to 1. That is, the frequencies of the second sensing signal can be {0, Δf, 2Δf, …, (M2-1)Δf} respectively. For example, if the configuration information of the sensing signal indicates that the frequency difference is 1kHZ, the fourth frequency of the second sensing signal is (4-1)*1kHZ=3kHZ, which is not limited here.

[0498] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2 and the sensing bandwidth BW s . The second device can determine the M2 frequencies of the second sensing signal according to the number of frequencies M2 and the sensing bandwidth BW s . Specifically, the m2th frequency of the M2 frequencies of the second sensing signal is (m2-1)BW s / M2. That is, the frequencies of the second sensing signal can be {0, BW s / M2, 2BW s / M2, …, (M2-1)BW s / M2} respectively. For example, if the configuration information of the sensing signal indicates that the number of frequencies is 6, and the configuration information of the sensing signal indicates that the sensing bandwidth is 2kHZ, the fourth frequency of the second sensing signal is (4-1)*2kHZ / 6=1kHZ, which is not limited here.

[0499] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2, the frequency difference Δf, and the frequency offset f o . The second device can determine the M2 frequencies of the second sensing signal according to the number of frequencies M2, the frequency difference Δf, and the frequency offset f o . Specifically, the m2th frequency of the M2 frequencies of the second sensing signal is (m2-1)Δf+f oThat is, the frequencies of the second sensing signal can be {f o , Δf + f o , 2Δf + f o , …, (M2-1)Δf + f o}, respectively. For example, if the configuration information of the sensing signal indicates that the frequency difference is 1 kHZ, and the configuration information of the sensing signal indicates that the frequency offset is 2 kHZ, the fourth frequency of the second sensing signal is (4-1)*1 kHZ + 2 kHZ = 5 kHZ, which is not limited here.

[0500] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2, the frequency difference Δf, and the sensing bandwidth BW s . The second device can determine the M2 frequencies of the second sensing signal according to the number of frequencies M2, the frequency difference Δf, and the sensing bandwidth BW s .

[0501] Specifically, the m2th frequency of the M2 frequencies of the second sensing signal can be (m2-1)Δf or (m2-1)BW s / M2. Wherein, m2 is an integer less than or equal to M2 and greater than or equal to 1. That is, the frequencies of the second sensing signal can be {0, Δf, 2Δf, …, (M2-1)Δf}, or can be {0, BW s / M2, 2BW s / M2, …, (M2-1)BW s / M2}, respectively.

[0502] Specifically, for m2 being an integer less than or equal to M2 / 2 and greater than or equal to 1, the m2th frequency of the M2 frequencies of the second sensing signal can be (m2-1)Δf; for m2 being an integer less than or equal to M2 and greater than M2 / 2, the m2th frequency of the M2 frequencies of the second sensing signal can be BW s -(M2-m2)Δf. Wherein, the frequency difference Δf is the frequency difference between every two of {frequency domain unit 1, frequency domain unit 2, …, frequency domain unit M2 / 2} carrying the second sensing signal, and / or is the frequency difference between every two of {frequency domain unit M2 / 2, frequency domain unit 1+M2 / 2, …, frequency domain unit M2} carrying the second sensing signal.

[0503] Optionally, the configuration information of the sensing signal indicates the number of frequencies M2, the sensing bandwidth BW s , and the frequency offset f o . The second device can determine the M2 frequencies of the second sensing signal according to the number of frequencies M2, the sensing bandwidth BW s , and the frequency offset f oM2 frequencies of the second sensing signal are determined. Specifically, the m2th frequency of the M2 frequencies of the second sensing signal is (m2-1)BW s / M2+f o . That is, the frequencies of the second sensing signal can be {f o , BW s / M2+f o , 2BW s / M2+f o , …, (M2-1)BW s / M2+f o}, respectively. For example, if the configuration information of the sensing signal indicates that the number of frequencies is 6, the configuration information of the sensing signal indicates that the sensing bandwidth is 2kHZ, and the configuration information of the sensing signal indicates that the frequency difference is 2kHZ, the fourth frequency of the second sensing signal is (4-1)*2kHZ / 6+2kHZ=3kHZ, which is not limited herein.

[0504] It should be understood that the number of frequencies M2, the frequency difference Δf and the sensing bandwidth BW s satisfy the relationship: Δf=BW s / M, M=BW s / Δf or BW s =M*Δf.

[0505] It should be understood that the default value of the frequency offset f o is 0, and the frequency offset f o may be 0 or other values, which are not limited herein.

[0506] In the embodiments of the present application, the configuration information of the sensing signal enables the second device to flexibly configure the M2 frequencies of the second sensing signal.

[0507] As a possible implementation, the number of frequencies M2 in the configuration information of the sensing signal can be determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the frequency difference Δf in the configuration information of the sensing signal can be determined by any one of the sensing service level, the channel quality measurement result or the signal energy; and / or, the sensing bandwidth BW s in the configuration information of the sensing signal can be determined by any one of the sensing service level, the channel quality measurement result or the signal energy.

[0508] In a possible implementation, the second device can determine the number of frequencies M2 according to the sensing service level of the second sensing signal; and / or, can determine the frequency difference Δf according to the sensing service level of the second sensing signal; and / or, can determine the sensing bandwidth BW s according to the sensing service level of the second sensing signal.

[0509] Optionally, the higher the sensing service level of the second sensing signal, the larger the value of M2, or the lower the sensing service level of the second sensing signal, the smaller the value of M2.

[0510] Optionally, the higher the sensing service level of the second sensing signal, the smaller the value of Δf, or the lower the sensing service level of the second sensing signal, the larger the value of Δf.

[0511] Optionally, the higher the sensing service level of the second sensing signal, the larger the value of BW s , or the lower the sensing service level of the second sensing signal, the smaller the value of BW s .

[0512] In another possible implementation, the second device can determine the number of frequencies M2 according to a channel quality measurement result of the second sensing signal; and / or, can determine the frequency difference Δf according to the channel quality measurement result of the second sensing signal; and / or, can determine the sensing bandwidth BW s according to the channel quality measurement result of the second sensing signal.

[0513] Optionally, the better the channel quality measurement result of the second sensing signal, the smaller the value of M2, or the worse the channel quality measurement result of the second sensing signal, the larger the value of M2.

[0514] Optionally, the better the channel quality measurement result of the second sensing signal, the larger the value of Δf, or the worse the channel quality measurement result of the second sensing signal, the smaller the value of Δf.

[0515] Optionally, the better the channel quality measurement result of the second sensing signal, the smaller the value of BW s , or the worse the channel quality measurement result of the second sensing signal, the larger the value of BW s .

[0516] The description of the channel quality measurement result can refer to the above embodiments, and will not be repeated here.

[0517] In another possible implementation, the second device can determine the number of frequencies M2 according to a signal energy of the second sensing signal; and / or, can determine the frequency difference Δf according to the signal energy of the second sensing signal; and / or, can determine the sensing bandwidth BW s according to the signal energy of the second sensing signal.

[0518] Optionally, the lower the signal energy of the second sensing signal, the larger the value of M2, or the higher the signal energy of the second sensing signal, the smaller the value of M2.

[0519] Optionally, the lower the signal energy of the second sensing signal, the smaller the Δf value; conversely, the higher the signal energy of the second sensing signal, the larger the Δf value.

[0520] Optionally, the lower the signal energy of the second sensing signal, the lower the BW. s The larger the value, the higher the signal energy of the second sensing signal, and thus the higher the BW value. s The smaller the value.

[0521] The description of signal energy can be found in the above embodiments, and will not be repeated here.

[0522] It should be noted that the choice between a second sensing signal with a different phase or a second sensing signal with a different frequency can be made by considering the sensing bandwidth BW. s Phase difference Δθ, distance d1 between the sensing receiver and the sensing transmitter, and carrier frequency f of the second sensing signal. c At least one of the following is determined: the target distance d2 or the target distance d2.

[0523] Optionally, if the sensing bandwidth is less than or equal to the first bandwidth threshold, a second sensing signal with a different phase is used. If the sensing bandwidth is greater than or equal to the first bandwidth threshold, a second sensing signal with a different frequency is used.

[0524] Optionally, if the perceived phase difference is less than a first phase threshold, a second sensing signal with a different phase is used. If the perceived phase difference is greater than the first phase threshold, a second sensing signal with a different frequency is used. The perceived phase difference can be understood as the phase interval between the maximum and minimum phases of the M² second sensing signals. The phase can be understood as the initial phase. For example, the first phase threshold could be... Any one of them.

[0525] Optionally, if the distance d1 between the sensing receiver and the sensing transmitter is less than a first distance threshold, a second sensing signal with a different phase is used. If the distance d1 between the sensing receiver and the sensing transmitter is greater than the first distance threshold, a second sensing signal with a different frequency is used.

[0526] Optionally, the carrier frequency f of the second sensing signal c If the frequency is less than the first carrier frequency threshold, a second sensing signal with a different frequency is used. The carrier frequency f of the second sensing signal... c If the signal exceeds the first carrier frequency threshold, a second sensing signal with a different phase is used.

[0527] Optionally, when the target distance d2 is greater than the first distance threshold, the second sensing signal with different phase is used; and when the target distance d2 is less than the first distance threshold, the second sensing signal with different frequency is used. The target distance d2 can be the distance between the sensing transmitter, the target and the sensing receiver, the distance between the target and the sensing receiver, or the distance between the sensing transmitter and the target.

[0528] Optionally, the terminal device reports a historical target distance, and the network device determines to use the second sensing signal with different frequency or different phase according to the historical target distance; or the terminal device determines to use the second sensing signal with different frequency or different phase according to the historical target distance, which is not limited here.

[0529] 1004, receiving the second sensing signal;

[0530] The step 1004 can be executed by the second device or by a module (such as a processor, a chip, a chip system, a circuit, etc.) in the second device. Taking the second device as an example, the second device receives the second sensing signal. Correspondingly, the first sensing signal is sent by the first device.

[0531] The sensing signal sent by the first device is the first sensing signal, and the sensing signal received by the second device via reflection and scattering of the sensing target is the second sensing signal. The change of the second sensing signal compared with the first sensing signal includes the change caused by reflection and / or scattering of the sensing target, such as the change in time domain and / or frequency domain, and for example, the change in amplitude and / or phase, which to some extent reflects the information of the sensing target.

[0532] The second device receives the second sensing signal, wherein the second sensing signal includes the signal received after the first sensing signal is reflected and / or scattered by the sensing target; or the second sensing signal is the signal received after the first sensing signal is reflected and / or scattered by the sensing target; or the second sensing signal is the first sensing signal; or the second sensing signal includes the first sensing signal; wherein the first sensing signal is sent by the first device.

[0533] The second sensing signal includes M2 components or M2 parts, that is, the second sensing signal includes M2 sub-signals. M2 is an integer greater than or equal to 1. Each sub-signal is a component or part of the second sensing signal. The second sensing signal is carried on M2 frequency domain units, each of which carries a component of the second sensing signal or a part of the second sensing signal. The second sensing signal carried on the M2 frequency domain units can be referred to as: M2 sub-signals of the second sensing signal, M2 second sensing signals, or simply the second sensing signal. For example, the frequency domain unit is a RE, and the second sensing signal can be carried by M2 REs.

[0534] In the same frequency domain unit, the sub-signal of the second sensing signal includes the signal received after the sub-signal of the first sensing signal is reflected and / or scattered by the sensing target; or, in the same frequency domain unit, the sub-signal of the second sensing signal is the signal received after the sub-signal of the first sensing signal is reflected and / or scattered by the sensing target; or, in the same frequency domain unit, the sub-signal of the second sensing signal is the sub-signal of the first sensing signal; or, in the same frequency domain unit, the sub-signal of the second sensing signal includes the sub-signal of the first sensing signal; wherein the sub-signal of the first sensing signal is transmitted by the first device.

[0535] Optionally, the second sensing signal includes a plurality of sub-signals having a quasi-colocation (QCL) relationship.

[0536] The second sensing signal can have M1 different phases or M2 different frequencies, which are described below respectively:

[0537] 1) The second sensing signal has M1 different phases;

[0538] In a possible implementation, the second sensing signal is carried on different frequency domain units of the same time domain unit. For M2=M1, the second sensing signal on each frequency domain unit of the M2=M1 frequency domain units carrying the second sensing signal has a different phase. For M2>M1, of the M2 frequency domain units carrying the second sensing signal, M1 frequency domain units carry the second sensing signal having M1 different phases respectively. The above two cases correspond to the second sensing signal having M1 different phases.

[0539] In this embodiment, the second sensing signal is carried on M2 frequency domain units, which can also be understood as the second sensing signal being mapped onto M2 frequency domain units. That is, each frequency domain unit maps a component of the second sensing signal, or each frequency domain unit maps a portion of the second sensing signal. Among the M2 frequency domain units mapping the second sensing signal, the second sensing signal mapped on M1 frequency domain units has M1 different phases.

[0540] 2) The second sensing signal can have M2 different frequencies.

[0541] The M1 frequency domain units carrying the second sensing signal correspond to M2 different frequencies of the second sensing signal. The second sensing signal can be carried on the same time domain unit or different time domain units, and it can also be carried on the same frequency domain unit or different frequency domain units.

[0542] In one possible implementation, the second sensing signal is carried on different frequency domain units within the same time domain unit. For example, the second sensing signal is carried on M² REs of the same symbol. That is, the second sensing signal can be carried on different frequency domain units located at {f1, f2, ... f... M2 The signal is received on the RE corresponding to}. Taking the two sub-signals contained in the second sensing signal as an example, the signal of sub-signal 1 can be expressed as exp(2jπf1t), and the signal of sub-signal 2 can be expressed as exp(2jπf2t+jθ). The phase difference (or initial phase difference) between sub-signal 1 and sub-signal 2 is Δθ or θ. Here, f1 and f2 represent that the two sub-signals of the second sensing signal are carried on different frequency domain units. Specifically, as shown in Figure 11, sub-signal 1 is received on the RE corresponding to f1 in symbol 1, and sub-signal 2 is received on the RE corresponding to f2 in symbol 1. Here, f1 and f2 represent that the second sensing signal is carried on different frequency domain units. |f1-f2| represents the frequency difference between the two sub-signals included in the second sensing signal.

[0543] In another possible implementation, the second sensing signal is carried on the same frequency domain unit in different time domain units. For example, the second sensing signal is carried on M2 symbols of the same RE. That is, the second sensing signal is received on the RE corresponding to f1. Taking the two sub-signals of the second sensing signal as an example, the signal of sub-signal 1 can be expressed as exp(2jπf1t), and the signal of sub-signal 2 can be expressed as exp(2jπf1t+jθ). Here, the phase difference (or initial phase difference) between sub-signal 1 and sub-signal 2 is Δθ or θ. f1 indicates that the two sub-signals of the second sensing signal are carried on the same frequency domain unit. Specifically, as shown in Figure 12, sub-signal 1 is received on the RE corresponding to f1 in symbol 1, and sub-signal 2 is received on the RE corresponding to f1 in symbol 3.

[0544] In another possible implementation, the second sensing signal is carried on different frequency domain units of different time domain units. For example, the second sensing signal is carried on a resource composed of M2 REs and M2 symbols. Taking two sub-signals of the second sensing signal as an example, as shown in FIG. 13, sub-signal 1 is received on the RE corresponding to f1 on symbol 1, and sub-signal 2 is received on the RE corresponding to f2 on symbol 3. The second sensing signal can also have other receiving manners, which are not limited herein. Wherein, f1 and f2 represent that the second sensing signal is carried on different frequency domain units. |f1-f2| represents the frequency difference between the two sub-signals included in the second sensing signal.

[0545] 3) The second sensing signal can have M1 different phases and M2 different frequencies;

[0546] In the M2 frequency domain units carrying the second sensing signal, M1 frequency domain units carry the second sensing signal with M1 different phases respectively, and the M1 frequency domain units correspond to M2 different frequencies of the second sensing signal. The above two cases can be referred to, and details are not repeated herein.

[0547] In a possible implementation, the second device receives the second sensing signal on Y time domain units, and Y is a positive integer. Optionally, on the Y time domain units, the phase of the second sensing signal located on the same frequency domain unit is unchanged. Optionally, on the Y time domain units, the frequency domain unit where the second sensing signal is located is unchanged.

[0548] In this embodiment, the time domain unit can be a symbol or a time slot, for example, a sensing symbol or a sensing time slot.

[0549] The second device can receive Y second sensing signals on Y time domain units. The time domain range where the Y time domain units are located can be regarded as a first time window, that is, the Y time domain units can also be understood as a first time window. That is, the information of the sensing target is determined according to the second sensing signal accumulated in the first time window. The first time window can be understood as a sensing window. It can be understood that the number of second sensing signals received by the Y time domain units in the first time window is Y.

[0550] Exemplarily, on the Y time domain units, the frequency domain units where the second sensing signals are located are the same. That is, on each time domain unit in the Y first time domain units, the second sensing signal is carried by the same frequency domain unit, or the second sensing signal is mapped on the same frequency domain unit. Wherein, the same frequency domain unit is the same M1 or M2 frequency domain unit.

[0551] Exemplarily, on the Y time domain units, the frequency domain units where the sub-signals of the second perception signal are located are the same. That is, on each of the Y first time domain units, the sub-signals of the second perception signal are carried by the same frequency domain unit, or the sub-signals of the second perception signal are mapped on the same frequency domain unit. Wherein, the same frequency domain unit is the same M1 or M2 frequency domain units.

[0552] This is because the channel has frequency selective fading, and using the same frequency domain unit ensures as close as possible frequency selective fading on the Y time domain units, thereby increasing the reliability of perception.

[0553] The second perception signal is periodically received on the Y time domain units, and the period is P. The period P of the second perception signal can be determined according to the length T win of the first time window and / or the number Y of the second perception signals in the first time window. Wherein, the length T win of the first time window is determined by the perception speed resolution and / or the perception distance resolution. The number Y of the second perception signals in the first time window is determined by the maximum perception speed and / or the maximum perception distance, or the period P of the second perception signal is determined by the maximum perception speed and / or the maximum perception distance.

[0554] In this embodiment, the speed resolution v res is determined according to the movement distance D b of the perception target and the length T win of the first time window. The speed resolution v res , the movement distance D b of the perception target and the length T win of the first time window satisfy the relationship: v res =2D b / T win . For example, in respiratory perception, D b is the distance of the chest movement when inhaling or exhaling. Taking D b as 1 cm and the length T win of the first time window as 60 s, the speed resolution v res is 0.0003 m / s; accordingly, if the speed resolution v res =0.0003 m / s is achieved, the length T win of the first time window needs to be 60 s. Other examples can refer to Table 1.

[0555] In respiratory perception, it is necessary to determine the number of breaths per minute (bpm) of the perception target. The period of the second perception signal can be determined according to the breath resolution and / or the maximum breath number. The length T winThe respiratory rate resolution (Δbpm) and / or the maximum respiratory rate (Max bpm ) can be determined.

[0556] It should be noted that in the respiratory sensing, the velocity resolution can be understood as the respiratory rate resolution, such as the resolution of respiratory rate per second or the resolution of respiratory rate per minute. The maximum velocity can be understood as the maximum respiratory rate, such as the maximum respiratory rate per second or the maximum respiratory rate per minute.

[0557] For example, the respiratory rate resolution Δbpm is determined according to the velocity resolution v res . The respiratory rate resolution Δbpm and the velocity resolution v res satisfy the relationship: v res = D b · Δbpm / 30, i.e. Δbpm = 30v res / D b . Taking D b as 1 cm for example, Δbpm = 1 corresponds to v res ≈ 0.0003 m / s; correspondingly, v res = 0.0003 m / s corresponds to Δbpm ≈ 1. Other examples can be referred to Table 2.

[0558] The respiratory rate resolution Δbpm and the length of the first time window T win satisfy the relationship: Δbpm = 60 / T win . For example, if the resolution of Δbpm ≤ 1 is required, a time domain window of at least 60 s is required. For another example, if the resolution of ΔΔbpm ≤ 2 is required, a time domain window of at least 30 s is required. For another example, if the resolution of Δbpm ≤ 3 is required, a time domain window of at least 20 s is required. Other examples can be referred to Table 1 above.

[0559] The maximum respiratory rate Max bpm , the length of the first time window Tw, the number of time domain units Y satisfy the relationship: For example, if Max bpm 60 is required to be sensed, at least 120 cycles of the second sensing signal are required in the first time window of 60 s. For example, if Max bpm 30 is required to be sensed, at least 60 cycles of the second sensing signal are required in the first time window of 60 s. Other examples can be referred to Table 1 above.

[0560] It should be understood that the maximum respiratory rate Max bpm and the respiratory rate resolution Δbpm satisfy the relationship: The specific relationship is not limited here.

[0561] a period P of the second sensing signal, a time length T of the first time window win and a number Y of time domain units satisfy a relationship: P=T win / Y. For example, T win = 60s, Y≥120, then the period P is at most 500ms, i.e., P≤500(ms). For another example, T win = 30s, Y≥30, then the period P is at most 1000ms, i.e., P≤1000(ms). Other examples can refer to Table 3.

[0562] 1005. determining, according to the second sensing signal, information of the sensing target;

[0563] The step 1005 can be executed by the second device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. For example, the second device determines, according to the second sensing signal, information of the sensing target.

[0564] Optionally, the second device determines, according to the second sensing signal on the Y time domain units and the M1 and / or M2 frequency domain units, sensing signal information corresponding to different motion frequencies. Specifically, the second device determines, according to the sensing signal information corresponding to the non-zero motion frequency, information of the sensing target, wherein the sensing signal information corresponding to the motion frequency is determined according to the second sensing signal located on the same frequency domain unit.

[0565] wherein determining, according to the second sensing signal on the Y time domain units and the M1 and / or M2 frequency domain units, sensing signal information corresponding to different motion frequencies comprises: determining, according to the second sensing signal on the Y time domain units and at least one frequency domain unit, sensing signal information corresponding to different motion frequencies, the at least one frequency domain unit belonging to the M1 and / or M2 frequency domain units.

[0566] In the embodiments of the present application, there is always a sensing signal with obvious amplitude, signal strength and / or phase change in the sensing process. It can be understood that the sensing signal with more obvious change can better reflect the information of the sensing target. However, due to the change of the sensing target position, the channel environment, interference, etc., in different cases, there is no sensing signal with a certain fixed phase and / or a certain fixed frequency that changes more obviously. However, in multiple sensing signals, or in multiple sub-signals of the sensing signal, there is always one that changes most obviously. Therefore, by determining the M1 phases and / or M2 frequencies of the first sensing signal and the M1 phases and / or M2 frequencies of the second sensing signal, in subsequent signal processing, the sensing result can be used to better receive the signal sensing target motion, thereby improving the accuracy and reliability of sensing.

[0567] In addition, for the perception signal having multiple phases and / or frequencies, more comprehensive perception results can be determined, and based on the rich perception results, the signal perception target motion can be better received, and the accuracy and reliability of the perception can be improved.

[0568] For example, in FIG. 16, the result of the sub-signal of the first perception signal (or the sub-signal of the second perception signal) identified by RS1 at position 1 is better, and the result of the sub-signal of the first perception signal (or the sub-signal of the second perception signal) identified by RS2 at position 2 is better. Due to the uncertainty of the position of the perception target, the frequency domain unit with better perception results on the multiple frequency domain units carrying the second perception signal changes with the change of the target position, and it is uncertain which frequency domain unit carries the second perception signal. However, there is always at least one frequency domain unit carrying the second perception signal with better perception results.

[0569] The second device performs fast Fourier transform (FFT) on the received second perception signal to obtain a frequency domain complex signal. It can also be said that the FFT processing of the second perception signal obtains the frequency domain complex signal of the sub-signal of the second perception signal. On the corresponding frequency domain unit, the amplitude information of the frequency domain complex signal represents the amplitude information of the second perception signal on the frequency domain unit (hereinafter referred to as amplitude information). Wherein, the amplitude information of the second perception signal on the frequency domain unit can be understood as the amplitude information of the sub-signal of the second perception signal. On the corresponding frequency domain unit, the phase information of the frequency domain complex signal represents the phase information of the second perception signal on the frequency domain unit (hereinafter referred to as phase information). Wherein, the amplitude information of the second perception signal on the frequency domain unit can be understood as the phase information of the sub-signal of the second perception signal.

[0570] For example, the amplitude information Amp and the phase information Ang of the second perception signal on the first frequency domain unit can be obtained, and the first frequency domain unit belongs to M1 and / or M2 frequency domain units. The sub-signal of the second perception signal carried on each frequency domain unit can be understood as the FFT processing of the second perception signal to obtain the amplitude information Amp and the phase information Ang of the sub-signal of the second perception signal carried on each frequency domain unit.

[0571] The frequency domain complex signal of the second perception signal includes a complex signal on the corresponding frequency domain unit. That is, the sub-signal of the second perception signal includes a complex signal s mwherein m = 1, 2, 3, …, M1 or m = 1, 2, 3, …, M2. m represents the mth frequency domain unit, i.e., the mth frequency domain unit in the M1 and / or M2 frequency domain units carrying the second sensing signal. Taking an example in which the second sensing signal includes four frequency domain units RE1, RE2, RE3, and RE4, the indexes of the four frequency domain units are in ascending order or descending order. The frequency domain complex signal of the second sensing signal carried on RE1 is s1, wherein |s1| is the amplitude Amp1 and ∠(s1) is the phase Ang1; the frequency domain complex signal of the second sensing signal carried on RE2 is s2, wherein |s2| is the amplitude Amp2 and ∠(s2) is the phase Ang2; the frequency domain complex signal of the second sensing signal carried on RE3 is s3, wherein |s3| is the amplitude Amp3 and ∠(s3) is the phase Ang3; and the frequency domain complex signal of the second sensing signal carried on RE4 is s4, wherein |s4| is the amplitude Amp4 and ∠(s4) is the phase Ang4.

[0572] The second device receives Y second sensing signals s on Y time domain units. m (t) represents a frequency domain complex signal on the mth frequency domain unit on the Y time domain units. Wherein t represents a time sequence on the Y time domain units, and t takes an integer from 0 to Y-1, or t takes an integer from 1 to Y. m takes an integer from 1 to M1 or M2, or m takes an integer from 0 to M1-1 or M2-1. Taking an example in which the second sensing signal includes four frequency domain units RE1, RE2, RE3, and RE4, the frequency domain complex signal on RE1 is s1(t), the frequency domain complex signal on RE2 is s2(t), the frequency domain complex signal on RE3 is s3(t), and the frequency domain complex signal on RE4 is s4(t).

[0573] Further, the amplitude information Amp and the phase information Ang of the sub-signals of the second sensing signal carried on the M1 and / or M2 frequency domain units can also be subjected to FFT processing to obtain the first sensing information; or the amplitude information Amp and the phase information Ang of the sub-signals of the second sensing signal carried on the M1 and / or M2 frequency domain units can also be subjected to multiple signal classification algorithm (MUSIC) processing to obtain the first sensing information; or the amplitude information Amp and the phase information Ang of the sub-signals of the second sensing signal carried on the M1 and / or M2 frequency domain units can also be subjected to power spectral density (PSD) processing to obtain the first sensing information. Wherein the peak value of the FFT processing, MUSIC processing or PSD processing result corresponds to the horizontal axis associated target speed.

[0574] In the present embodiment, FFT can be referred to as Fourier Transform. Performing PSD processing can be understood as determining a PSD, for example, determining a PSD of the amplitude information Amp of the sub-signals of the second perception signal, for another example, determining a PSD of the phase information Ang of the sub-signals of the second perception signal.

[0575] The FFT processing, the MUSIC processing or the PSD processing can reflect information of the perception target, for example, a speed of the motion of the perception target. For example, as the target moves away from the perception receiving end (or the perception sending end), the amplitude or the phase of the second perception signal fluctuates. The frequency of the fluctuation reflects the speed of the motion of the perception target. After the FFT processing, the MUSIC processing or the PSD processing, the peak value corresponds to the frequency of the fluctuation.

[0576] On each frequency domain unit, the second perception signal carried on Y time domain units can determine 1 amplitude information Amp m (t) and / or 1 phase information Ang m (t). The second perception signals on M2 frequency domain units can determine M2 amplitude information Amp m (t) and / or M2 phase information Ang m (t); or, the second perception signals on M1 frequency domain units can determine M1 amplitude information Amp m (t) and / or M2 phase information Ang m (t). That is, M2 amplitude information Amp m (t) and / or M2 phase information Ang m (t) of the second perception signals received on Y time domain units can be obtained; or, M1 amplitude information Amp m (t) and / or M1 phase information Ang m (t) of the second perception signals received on Y time domain units can be obtained.

[0577] Optionally, FFT processing, MUSIC processing or PSD processing is performed on the amplitude information Amp m (t) and / or the phase information Ang m (t) of Y time domain units on each frequency domain unit. For example, FFT processing is performed on the amplitude information Amp m (t) of Y time domain units on each frequency domain unit, respectively. For another example, FFT processing is performed on the phase information Ang m (t) of Y time domain units on each frequency domain unit, respectively.

[0578] As shown in FIG. 17, the second device determines the sensing signal information corresponding to different motion frequencies according to the second sensing signal of the Y time domain units on the frequency domain unit, wherein the frequency domain unit belongs to the M1 and / or M2 frequency domain units. The information of the sensing target is determined based on the sensing signal information, such as the speed information of the sensing target or the motion change information of the sensing target. Specifically, the sensing signal information is determined by performing FFT processing, MUSIC processing or PSD processing on the second sensing signal of the Y time domain units on the frequency domain unit.

[0579] In a possible implementation, the second device performs FFT processing, MUSIC processing or PSD processing on the amplitude of the second sensing signal of the Y time domain units on the first frequency domain unit to obtain the amplitude information of the second sensing signal; or performs FFT processing, MUSIC processing or PSD processing on the signal strength of the second sensing signal of the Y time domain units on the first frequency domain unit to obtain the signal strength information of the second sensing signal; and performs FFT processing, MUSIC processing or PSD processing on the phase of the second sensing signal of the Y time domain units on the first frequency domain unit to obtain the phase information of the second sensing signal.

[0580] The sensing signal information determined based on the first frequency domain unit is first sensing information. That is, the sensing signal information determined by performing FFT processing, MUSIC processing or PSD processing on the second sensing signal of the Y time domain units on the first frequency domain unit is first sensing information. It can be understood that the motion frequencies of the second sensing signal of the Y time domain units on the M1 or M2 frequency domain units determine M1 or M2 sensing signal information. The motion frequencies of the second sensing signal of the Y time domain units on the first frequency domain unit determine the first sensing information. The first frequency domain unit belongs to the M1 and / or M2 frequency domain units, and the first sensing information belongs to the M1 or M2 sensing signal information.

[0581] The first sensing information includes sensing signal information corresponding to different motion frequencies. The motion frequencies are associated with the speed of the sensing target or the motion change information of the sensing target. In the breathing sensing, the breathing information bpm of the target is equal to 60*motion frequency. In order to distinguish the frequency of the second sensing signal from the frequency of the change of the second sensing signal on the Y time domain units, the frequency of the change is referred to as the motion frequency in this embodiment.

[0582] Optionally, the second device determines the information of the sensing target according to the first motion frequency. The maximum value in the sensing signal information corresponding to the non-zero motion frequency is a first value, the motion frequency corresponding to the first value is the first motion frequency, and the information of the sensing target is determined according to the first motion frequency. The first value can also be understood as a peak value in the sensing signal information.

[0583] Specifically, in the sensing signal information corresponding to non-zero motion frequencies, the peak value of the sensing signal information corresponds to a first motion frequency f, which is associated with the speed of the sensing target. The horizontal axis corresponding to the peak value is the first motion frequency f; therefore, in respiratory sensing, the target's respiratory information bpm = 60 * f. Similarly, the second device can use the sensing signal information determined by the first frequency domain unit as the first sensing information. The peak value of the first sensing information corresponds to the first motion frequency f, which is associated with the speed of the sensing target.

[0584] For example, the motion frequency range is [0, f s ], then according to the motion frequency range (0, f s The first value within the range (0, f) determines the first motion frequency, that is, based on the motion frequency range (0, f) s The peak value of the first perceived information within the range determines the first motion frequency, as shown in Figure 17. For example, the motion frequency range corresponding to FFT processing, MUSIC processing, or PSD processing is... Based on the range of motion frequency and The first value within the range determines the first motion frequency, that is, based on the motion frequency range. and The peak value of the first perceived information within the body determines the first motion frequency, as shown in Figure 18.

[0585] It should be noted that since components with non-zero motion frequencies can reflect the motion changes of the sensed target, it is necessary to exclude the sensed signal information corresponding to motion frequencies of 0 (i.e., sensed signal information corresponding to non-zero motion frequencies) to simplify the signal processing flow and improve the reliability of the sensed signal.

[0586] Optionally, the frequency domain units carrying the second sensing signal include M1 or M2 frequency domain units. It can be understood that the motion frequency of the second sensing signal in the Y time domain units of the M1 or M2 frequency domain units can determine the M1 or M2 sensing signal information. Among the sensing signal information corresponding to non-zero motion frequencies, the sensing signal information with the largest peak value is the first sensing information. That is, among the sensing signal information corresponding to non-zero motion frequencies, the peak value of the first sensing information corresponds to the first motion frequency, and the first motion frequency is associated with the speed of the sensing target. The first sensing information is the sensing signal information determined based on the first frequency domain unit. This first sensing information can determine a better sensing result compared to other sensing signal information; in other words, the second sensing signal in the first frequency domain unit can determine a better sensing result compared to the second sensing signal in other frequency domain units.

[0587] As shown in Figures 19 and 20, the second sensing signal of Y time-domain units in two frequency domain units can determine two amplitude information Amp. m(t) and / or 2 phase information Ang m (t), i.e. 2 perception signal information (black discrete points and grey discrete points in FIG. 19, FIG. 20). Each perception signal information includes perception signal information corresponding to different motion frequency. For example, 2 frequency domain units are first frequency domain unit and second frequency domain unit respectively. The perception signal information corresponding to non-zero motion frequency determined by the first frequency domain unit is represented by black discrete points in FIG. 19, i.e. first perception information. The perception signal information corresponding to non-zero motion frequency determined by the second frequency domain unit is represented by grey discrete points in FIG. 19, i.e. second perception information.

[0588] In a possible implementation, as shown in FIG. 19, the second device can determine the first motion frequency according to the motion frequency corresponding to the maximum value in all discrete points.

[0589] In another possible implementation, as shown in FIG. 20, the second device can compare the maximum value in the first perception information, i.e. maximum value A, and the maximum value in the second perception signal information, i.e. maximum value B, to obtain the maximum value in all maximum values, i.e. maximum value A. The second device determines the first motion frequency according to the motion frequency corresponding to the maximum value A.

[0590] Based on the peak value in the first perception information corresponding to at least one non-zero motion frequency, the information of the perception target is determined, which can improve the reliability of perception. Removing the information of motion frequency being zero can remove the second perception signal directly coupled from the perception sending end to the perception receiving end. This is because the information of motion frequency being zero corresponds to the static component of the second perception signal and does not include the information of the perception target; correspondingly, the information of non-zero motion frequency corresponds to the dynamic component of the second perception signal and includes the information of the perception target. By determining the peak value of the first perception information in non-zero motion frequency, the influence of the static component on the perception result can be eliminated, that is, the part including the information of the perception target can be extracted. For example, the static component includes the second perception signal directly reaching the perception receiving end without reflection and / or scattering of the perception target from the perception sending end. In actual perception, the signal energy of the static component is large, and removing the information of motion frequency being zero is equivalent to removing the information of the static component in the second perception signal.

[0591] Optionally, in the maximum of the perceptual signal information corresponding to the M1 or M2 non-zero motion frequencies: the perceptual signal information corresponding to the second perceptual signal with the largest signal energy is the first perceptual information; or, the perceptual signal information corresponding to the second perceptual signal with the largest variance of signal amplitude is the first perceptual information; or, the perceptual signal information corresponding to the second perceptual signal with the largest standard deviation of signal amplitude is the first perceptual information; or, the perceptual signal information corresponding to the second perceptual signal with the largest variance of signal phase is the first perceptual information; or, the perceptual signal information corresponding to the second perceptual signal with the largest standard deviation of signal phase is the first perceptual information.

[0592] Optionally, in the maximum of the perceptual signal information corresponding to the M1 or M2 non-zero motion frequencies: the perceptual signal information corresponding to the second perceptual signal with the largest signal energy is the first value; or, the perceptual signal information corresponding to the second perceptual signal with the largest variance of signal amplitude is the first value; or, the perceptual signal information corresponding to the second perceptual signal with the largest standard deviation of signal amplitude is the first value; or, the perceptual signal information corresponding to the second perceptual signal with the largest variance of signal phase is the first value; or, the perceptual signal information corresponding to the second perceptual signal with the largest standard deviation of signal phase is the first value.

[0593] Optionally, in the maximum of the perceptual signal information corresponding to the M1 or M2 non-zero motion frequencies: the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest signal energy is the first perceptual information; or, the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest variance of signal amplitude is the first perceptual information; or, the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest standard deviation of signal amplitude is the first perceptual information; or, the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest variance of signal phase is the first perceptual information; or, the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest standard deviation of signal phase is the first perceptual information.

[0594] Optionally, in the maximum of the perceptual signal information corresponding to the M1 or M2 non-zero motion frequencies: the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest signal energy is the first value; or, the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest variance of signal amplitude is the first value; or, the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest standard deviation of signal amplitude is the first value; or, the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest variance of signal phase is the first value; or, the perceptual signal information corresponding to the sub-signal of the second perceptual signal with the largest standard deviation of signal phase is the first value.

[0595] Optionally, the second sensing signal carried on different frequency domain units has a sub-signal corresponding to the first sensing information. The first sensing information corresponds to the first sensing signal, which is: the second sensing signal with the largest energy carried on the first frequency domain unit in the M1 and / or M2 frequency domain units; or, the second sensing signal with the largest variance of the amplitude carried on the first frequency domain unit in the M1 and / or M2 frequency domain units; or, the second sensing signal with the largest standard deviation of the signal amplitude carried on the first frequency domain unit in the M1 and / or M2 frequency domain units; or, the second sensing signal with the largest variance of the signal phase carried on the first frequency domain unit in the M1 and / or M2 frequency domain units; or, the second sensing signal with the largest standard deviation of the signal phase carried on the first frequency domain unit in the M1 and / or M2 frequency domain units.

[0596] The second sensing signal has M2 sub-signals, and the second device can determine the information of the sensing target based on the first sensing information corresponding to the sub-signal of the second sensing signal with better sensing results. That is, the first sensing information corresponds to: the sub-signal of the second sensing signal with the largest energy carried on the first frequency domain unit in the M1 and / or M2 frequency domain units; or, the sub-signal of the second sensing signal with the largest variance of the amplitude carried on the first frequency domain unit in the M1 and / or M2 frequency domain units; or, the sub-signal of the second sensing signal with the largest standard deviation of the signal amplitude carried on the first frequency domain unit in the M1 and / or M2 frequency domain units; or, the sub-signal of the second sensing signal with the largest variance of the signal phase carried on the first frequency domain unit in the M1 and / or M2 frequency domain units; or, the sub-signal of the second sensing signal with the largest standard deviation of the signal phase carried on the first frequency domain unit in the M1 and / or M2 frequency domain units.

[0597] Optionally, in the M1 or M2 frequency domain units, the second sensing signal carried on the first frequency domain unit has the largest energy in the first time window; or, the second sensing signal carried on the first frequency domain unit has the largest variance of the amplitude in the first time window; or, the second sensing signal carried on the first frequency domain unit has the largest standard deviation of the signal amplitude in the first time window; or, the second sensing signal carried on the first frequency domain unit has the largest variance of the signal phase in the first time window; or, the second sensing signal carried on the first frequency domain unit has the largest standard deviation of the signal phase in the first time window.

[0598] That is, in the M1 or M2 perception signal information, using one of the perception signal information can get the best perception result, the perception signal information is the first perception information. Or, in the M1 or M2 frequency domain units, using the second perception signal carried by the frequency domain unit in the frequency domain unit can get the best perception result, the frequency domain unit is the first frequency domain unit.

[0599] When the signal energy of the second perception signal is large, the amplitude (signal strength) and / or phase change of the second perception signal received in the first time window is large, which is more conducive to subsequent second perception signal processing and improves the reliability of perception. The variance of the amplitude and / or phase of the second perception signal is the most intuitive factor to reflect the change, and selecting the second perception signal with large variance is more conducive to subsequent signal processing and improves the reliability of perception. The standard deviation of the amplitude and / or phase of the second perception signal is the most intuitive factor to reflect the change, and selecting the second perception signal with large standard deviation is more conducive to subsequent signal processing and improves the reliability of perception.

[0600] It should be understood that determining the information of the perception target can also be referred to as performing perception or running a perception service. Specifically, performing perception can include determining at least any one of motion information of the perception target, motion change information of the perception target, position information of the perception target, distance information of the perception target, speed information of the perception target, and angle information of the perception target. That is, the information of the perception target can be replaced by at least one of the motion information, the motion change information, the position information, the distance information, the speed information, and the angle information.

[0601] It should be understood that the information of the perception target can be determined according to the information of the perception service. The information of the perception service includes at least one of the following: perception speed accuracy, perception speed resolution, perception distance accuracy, perception distance resolution, maximum perception speed, and maximum perception distance. Among them, the perception speed accuracy, the perception speed resolution, the perception distance accuracy, the perception distance resolution, the maximum perception speed, and the maximum perception distance can be abbreviated as speed accuracy, speed resolution, distance accuracy, distance resolution, maximum speed, and maximum distance, respectively.

[0602] For example, in the present embodiment, it is illustrated that the number M1 of phases of the first perception signal can be determined according to the perception distance resolution, and further, the information of the perception target is determined by performing perception on the perception target according to the first perception signal.

[0603] Optionally, the embodiment shown in FIG. 10 further includes step 1000a. Step 1000a can be performed before step 1001.

[0604] 1000a, sending perception request information to a network device;

[0605] The step 1000a can be performed by the first device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. Taking the first device as an example, the first device sends the sensing request information to the network device, and correspondingly, the network device receives the sensing request information from the first device. The network device can be the second device or another network device, which is not limited herein.

[0606] In a possible implementation, the first device is a terminal device, and the first device can send the sensing request information to the network device. The sensing request information can be understood as information of a sensing service type. For example, the sensing request information includes at least any one of the following information: a sensing scene, a sensing service type, a confidence level, an accuracy of a positioning estimation, an accuracy of a speed estimation, a distance resolution, a speed resolution, a maximum distance, a maximum speed, a maximum sensing service delay, a refresh rate, a missing detection rate, and a false alarm rate. The accuracy of the estimation can include an accuracy in a horizontal direction and / or an accuracy in a vertical direction. The resolution can include a resolution in a horizontal direction and / or a resolution in a vertical direction. In breath sensing, the speed resolution can be understood as a breath frequency resolution, such as a resolution of breath frequency per second or a resolution of breath frequency per minute. In breath sensing, the maximum speed can be understood as a maximum breath frequency, such as a maximum breath frequency per second or a maximum breath frequency per minute.

[0607] Optionally, the sensing request information can be understood as information of a UE capability. For example, the sensing request information includes at least one of an analog-to-digital converter (ADC) dynamic range, an ADC quantization bit number, a maximum sensing distance capability, a maximum sensing speed capability, a sensing transmitter-receiver distance, and a carrier frequency.

[0608] Optionally, the embodiment shown in FIG. 10 further includes a step 1000b. The step 1000b can be performed before the step 1001.

[0609] 1000b, sending the sensing request information to the first device;

[0610] The step 1000b can be performed by the second device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. Taking the second device as an example, the second device sends the sensing request information to the first device, and correspondingly, the first device receives the sensing request information from the second device.

[0611] Optionally, the embodiment shown in FIG. 10 further includes a step 1000c. The step 1000c can be performed before the step 1001.

[0612] 1000c, the first device sends the sensing request information to the second device, and correspondingly, the second device receives the sensing request information from the first device;

[0613] The step 1000c can be performed by the first device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) in the first device. For example, the first device sends the sensing request information to the second device, and correspondingly, the second device receives the sensing request information from the first device.

[0614] Optionally, the embodiment shown in FIG. 10 further includes a step 1000d. The step 1000d can be performed before the step 1001.

[0615] 1000d, sending the sensing request information to a network device;

[0616] The step 1000d can be performed by the second device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) in the second device. For example, the second device sends the sensing request information to the network device, and correspondingly, the network device receives the sensing request information from the second device. The network device can be the first device or another network device, which is not limited herein.

[0617] The steps 1000b-1000d in the embodiment are similar to the step 1000a in the embodiment, which will not be repeated here.

[0618] It should be noted that the steps 1000a-1000d can be combined to form a new independent embodiment, for example, the step 1000a is combined with the step 1000d, which is not limited herein.

[0619] Optionally, the embodiment shown in FIG. 10 further includes a step 1000e. The step 1000e can be performed before the step 1001.

[0620] 1000e, receiving the configuration information of the sensing signal from the network device;

[0621] The step 1000e can be performed by the first device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) in the first device. For example, the first device receives the configuration information of the sensing signal from the network device, and correspondingly, the network device sends the configuration information of the sensing signal to the first device. The network device can be the second device or another network device, which is not limited herein.

[0622] In one possible implementation, the network device instructs the network device on the configuration information of the sensing signal based on the sensing request information sent by the first device. This sensing request information can be referred to in step 1000a above, and will not be repeated here. For example, the configuration information of the sensing signal is the sensing request information sent by the first device; or, for another example, the configuration information of the sensing signal can satisfy the sensing request information sent by the first device, which is not limited here.

[0623] In another possible implementation, the network device can actively send configuration information of the sensing signal to the first device. In this case, the first device can be a terminal device or a network device, and the specific type is not limited here.

[0624] Optionally, the embodiment shown in FIG10 further includes step 1000f. Step 1000f may be performed before step 1001.

[0625] 1000f, Send configuration information for sensing signals to the second device;

[0626] Step 1000f can be performed by the first device or by its modules (e.g., processor, chip, chip system, circuit, etc.). Taking the first device as an example, the first device sends configuration information of the sensing signal to the second device, and correspondingly, the second device receives the configuration information of the sensing signal from the first device.

[0627] Optionally, the embodiment shown in FIG10 further includes step 1000g. Step 1000g may be performed before step 1001.

[0628] 1000g, configuration information for sending sensing signals to the first device;

[0629] Step 1000g can be performed by the second device or by its modules (e.g., processor, chip, chip system, circuit, etc.). Taking the second device as an example, the second device sends configuration information of the sensing signal to the first device, and correspondingly, the first device receives the configuration information of the sensing signal from the second device.

[0630] Optionally, the embodiment shown in FIG10 further includes step 1000e. Step 1000e may be performed before step 1001.

[0631] 1000h, receiving configuration information from sensing signals from network devices;

[0632] Step 1000h can be performed by the second device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. Taking the second device as an example, the second device receives the configuration information of the sensing signal from the network device, and correspondingly, the network device sends the configuration information of the sensing signal to the second device. The network device can be the first device or another network device, which is not limited herein.

[0633] Steps 1000f to 1000h in the embodiment are similar to step 1000e described above, and details are not described herein again.

[0634] It should be noted that steps 1000e to 1000h can be combined with each other to constitute a new independent embodiment, for example, step 1000e is combined with step 1000h, which is not limited herein.

[0635] It should be noted that at least any one of steps 1000a to 1000d can be combined with at least any one of steps 1000e to 1000h to constitute a new independent embodiment, for example, step 1000a is combined with step 1000e, which is not limited herein.

[0636] Optionally, at least any one of steps 1000e to 1000h is performed after at least any one of steps 1000a to 1000d. Specifically, step 1000e is performed after step 1000a, step 1000f is performed after step 1000b, step 1000g is performed after step 1000c, step 1000h is performed after step 1000d, or steps 1000e and 1000h are performed after steps 1000a and 1000d.

[0637] Optionally, steps 1000e to 1000h are performed before steps 1000a to 1000d, which is not limited herein.

[0638] Referring to FIG. 21, a signal transmission method in an embodiment of the present application includes:

[0639] 2101, determining M1 phases and / or M2 frequencies of the first sensing signal;

[0640] Step 2101 can be performed by the third device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. Taking the third device as an example, the third device determines M1 phases and / or M2 frequencies of the first sensing signal. The third device can be understood as a device having the functions of the first device and the second device at the same time, and the third device can be a network device (e.g., a TRP) or a terminal device, which is not limited herein.

[0641] 2102、sending a first sensing signal;

[0642] Step 2102 can be performed by the third device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. Taking the third device as an example, the third device sends the first sensing signal. The third device can be understood as a device having both the function of the first device and the function of the second device, and the third device can be a network device (e.g., a TRP) or a terminal device, which is not limited here.

[0643] 2103、determining M1 phases and / or M2 frequencies of a second sensing signal;

[0644] Step 2103 can be performed by the third device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. Taking the third device as an example, the third device determines M1 phases and / or M2 frequencies of the second sensing signal. The third device can be understood as a device having both the function of the first device and the function of the second device, and the third device can be a network device (e.g., a TRP) or a terminal device, which is not limited here.

[0645] 2104、receiving a second sensing signal;

[0646] Step 2104 can be performed by the third device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. Taking the third device as an example, the third device receives the second sensing signal. The third device can be understood as a device having both the function of the first device and the function of the second device, and the third device can be a network device (e.g., a TRP) or a terminal device, which is not limited here.

[0647] In the embodiments of the present application, the third device has both the function of the first device and the function of the second device, which can be understood as follows: after the third device sends the first sensing signal, the second sensing signal received by the third device includes the first sensing signal reflected and / or scattered by the sensing target. That is, the third device self-receives and self-senses the signal.

[0648] 2105、determining information of a sensing target according to the second sensing signal;

[0649] Step 2105 can be performed by the third device or by a module (e.g., a processor, a chip, a chip system, a circuit, etc.) therein. Taking the third device as an example, the third device determines the information of the sensing target according to the second sensing signal. The third device can be understood as a device having both the function of the first device and the function of the second device, and the third device can be a network device (e.g., a TRP) or a terminal device, which is not limited here.

[0650] Steps 2101 to 2105 in this example are similar to steps 1001 to 1005 in the embodiment shown in FIG. 10, and details are not repeated here. Optionally, the embodiment shown in FIG. 21 further includes step 2100a. Step 2100a can be performed before step 2101.

[0651] 2100a, sending awareness request information to a network device;

[0652] Step 2100a can be perfo...

Claims

A signal transmission method, characterized in that, Comprising: determining M1 phases and / or M2 frequencies of a first sensing signal, the first sensing signal being used for sensing a sensing target; sending the first sensing signal. The method of claim 1, wherein The first sensing signal is located on M1 frequency domain units, and the M1 phases of the first sensing signal include M1 phases of the first sensing signal transmitted on the M1 frequency domain units. And / or, the first sensing signal is located on M2 frequency domain units, and the M2 frequencies of the first sensing signal include the frequencies of the M2 frequency domain units. The method according to claim 1 or 2, characterized in that M1 phases of the first perception signal are determined by configuration information of the perception signal, the configuration information of the perception signal comprising at least one of: a phase number M1, a phase difference Δθ, a phase offset θ o or a phase list, wherein the M1 is a number of phases, and the Δθ is a difference between two adjacent phases. The method according to claim 3, characterized in that a phase of the first perception signal is Or, a phase of the first perception signal is Or, The m1th phase of the first sensing signal is (m1-1)π / M1; Or, The m1th phase of the first sensing signal is (m1-1)Δθ; Or, a (m1-1)π / M1+θ o ; Or, The m1th phase of the first sensing signal is (m1-1)Δθ+θ o , wherein m1 is an integer greater than or equal to 1 and less than or equal to M1. The method according to any one of claims 1 to 4, characterized in that The number of phases M1 is determined by any one of distance resolution, sensing service level, channel quality measurement result or signal energy; And / or, The phase difference Δθ is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result or the signal energy. The method according to claim 5, characterized in that If the distance resolution is less than or equal to λ / X, the first sensing signal includes at least X different phases; And / or, If the distance resolution is greater than or equal to λ / 2X, the first sensing signal includes at least X different phases, and the λ is the wavelength of the first sensing signal, and the X is less than or equal to the M1. The method according to any one of claims 1 to 6, characterized in that M2 frequencies of the first perception signal are determined by configuration information of the perception signal, the configuration information of the perception signal comprising at least one of: a frequency number M2, a frequency difference Δf, a perception bandwidth BW s , a frequency offset f o , or frequency position information, the Δf being a difference value of two adjacent frequencies. The method of claim 7, wherein The M2 frequencies of the first sensing signal are located on both sides of a partial bandwidth BWP; Or, The m2th frequency of the first sensing signal is (m2-1)Δf; Or, a (m2-1)th frequency of the first sensing signal is (m2-1)BW s / M2; Or, a (m2-1)Δf+fth frequency of the first perception signal o ; Or, the mth2 frequency of the first sensing signal is (m2-1)BW s / M2+f o , wherein m2 is an integer greater than or equal to 1 and less than or equal to M2. The method according to any one of claims 3 to 8, characterized in that The configuration information of the sensing signal includes: Receiving configuration information of the sensing signal from a first network device. The method of claim 9, wherein The method further includes: Sending sensing request information to the first network device, the sensing request information including sensing requirements of a first device. The method according to any one of claims 1 to 10, characterized in that The sending of the first sensing signal includes: Sending the first sensing signal on Y time domain units, Y being a positive integer, wherein: On the Y time domain units, the phase of the first sensing signal located on the same frequency domain unit is unchanged; and / or, On the Y time domain units, the frequency domain unit of the first sensing signal is unchanged. A signal transmission method, characterized in that, Comprising: determining M1 phases and / or M2 frequencies of a second sensing signal, the second sensing signal being used for determining information of a sensing target; receiving the second sensing signal. The method of claim 12, wherein The second sensing signal is located on M1 frequency domain units, and the M1 phases of the second sensing signal include M1 phases of the second sensing signal transmitted on the M1 frequency domain units. And / or, the second sensing signal is located on M2 frequency domain units, and the M2 frequencies of the second sensing signal include the frequencies of the M2 frequency domain units. The method according to claim 12 or 13, characterized in that M1 phases of the second perception signal are determined by configuration information of the perception signal, the configuration information of the perception signal comprising at least one of: a phase number M1, a phase difference Δθ, a phase offset θ o or a phase list, wherein the M1 is a number of phases, and the Δθ is a difference between two adjacent phases. The method of claim 14, wherein a phase of the second sensing signal is Or, a phase of the second sensing signal is Or, The m1th phase of the second sensing signal is (m1-1)π / M1; Or, The m1th phase of the second sensing signal is (m1-1)Δθ; Or, the m1th phase of the second sensing signal is (m1-1)π / M1+θ o ; Or, The m1th phase of the second sensing signal is (m1-1)Δθ+θ o , where m1 is an integer greater than or equal to 1 and less than or equal to M1. The method according to any one of claims 12 to 15, characterized in that The number of phases M1 is determined by any one of distance resolution, sensing service level, channel quality measurement result or signal energy; And / or, The phase difference Δθ is determined by any one of the distance resolution, the sensing service level, the channel quality measurement result, or the signal energy. The method of claim 16, wherein If the distance resolution is less than or equal to λ / X, the second sensing signal includes at least X different phases; and / or, If the distance resolution is greater than or equal to λ / 2X, the first sensing signal includes at least X different phases, and λ is the wavelength of the second sensing signal. The method according to any one of claims 12 to 17, characterized in that M2 frequencies of the second sensing signal are determined by configuration information of the sensing signal, the configuration information of the sensing signal comprising at least one of: a frequency number M2, a frequency difference Δf, a sensing bandwidth BW s , a frequency offset f o , or frequency position information, wherein the Δf is a difference value of two adjacent frequencies. The method of claim 18, wherein The M2 frequencies of the second sensing signal are located on both sides of a partial bandwidth BWP. Or, The m2th frequency of the second sensing signal is (m2-1)Δf. Or, a (m2-1)th frequency of the second sensing signal is (m2-1)BW s / M2; Or, a (m2-1)Δf + f o ; Or, a (m2-1)th frequency of the second sensing signal is (m2-1)BW s / M2+f o , wherein m2 is an integer greater than or equal to 1 and less than or equal to M2. The method according to claim 18 or 19, characterized in that The number of frequencies M2 is determined by any one of the sensing service level, the channel quality measurement result, or the signal energy. And / or, The frequency difference Δf is determined by any one of the sensing service level, the channel quality measurement result, or the signal energy. And / or, said perceived bandwidth BW s determined from any of said perceived traffic class, said channel quality measurement, or said signal energy. The method according to any one of claims 12 to 20, characterized in that The information of the sensing target includes one or more of the motion information of the sensing target, the motion change information of the sensing target, the distance information of the sensing target, the speed information of the sensing target, and the angle information of the sensing target. The method according to any one of claims 12 to 21, characterized in that The receiving of the second sensing signal includes: Receiving the second sensing signal on Y time domain units, Y being a positive integer, wherein: On the Y time domain units, the phases of the second sensing signal located on the same frequency domain unit are unchanged; and / or, On the Y time domain units, the frequency domain units of the second sensing signal are unchanged. The method of claim 22, wherein The method further includes: Determining, according to the second sensing signal on the M1 and / or M2 frequency domain units on the Y time domain units, sensing signal information corresponding to a non-zero motion frequency; Determining, according to the sensing signal information corresponding to the non-zero motion frequency, the information of the sensing target. The method of claim 23, wherein The maximum value in the sensing signal information corresponding to the non-zero motion frequency is a first value, the motion frequency corresponding to the first value is the first motion frequency, and the determination of the information of the sensing target according to the sensing signal information corresponding to the non-zero motion frequency includes: Determining the information of the sensing target according to the first motion frequency. The method of claim 24, wherein In the sensing signal information corresponding to the non-zero motion frequency: The sensing signal information corresponding to the second sensing signal with the maximum signal energy is the first sensing information; or, The sensing signal information corresponding to the second sensing signal with the maximum variance of signal amplitude is the first sensing information; or, The sensing signal information corresponding to the second sensing signal with the maximum standard deviation of signal amplitude is the first sensing information; Or, The sensing signal information corresponding to the second sensing signal with the maximum variance of signal phase is the first sensing information; Or, The sensing signal information corresponding to the second sensing signal with the maximum standard deviation of signal phase is the first sensing information; or, The first sensing information is the one with the maximum maximum value in the sensing signal information. The method according to any one of claims 12 to 25, characterized in that The configuration information for determining the sensing signal includes: Receiving the configuration information of the sensing signal from a first network device; or, receiving configuration information of the sensing signal from the first device. The method of claim 26, wherein The method further comprises: sending configuration information of the sensing signal to the first device. A communication device, characterized by comprising: a processor configured to execute a program, causing the communication apparatus to perform the method of any one of claims 1 to 11, or causing the communication apparatus to perform the method of any one of claims 12 to 27. A computer-readable storage medium, characterized by comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 11, or cause the computer to perform the method of any one of claims 12 to 27.

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