Sensing methods, apparatus and devices

Abstract

Provided in the present disclosure are sensing methods, an apparatus and devices. A method comprises: a sensing receiving device receiving sensing signals transmitted by at least two sensing transmitting devices; and measuring the sensing signals on the basis of sensing configuration information, so as to obtain sensing measurement values, where the sensing configuration information comprises a parameter of a sensing signal, and the parameter of the sensing signal comprises at least one of the following: the number of time segments, used to indicate the number of time segments for segmented phase modulation of the sensing signal; and a phase modulation rate of the sensing signal.

Description

Sensing methods, devices and equipment

[0001] This disclosure claims priority to Chinese Patent Application No. 202510098517.7, filed on January 22, 2025, entitled "Sensing Method, Apparatus and Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a sensing method, apparatus and device. Background Technology

[0003] The sensing signal is used by the receiver to sense target objects. The sensing signal may be interfered with by other signals of the same frequency, causing a decrease in sensing performance. Especially in collaborative sensing scenarios, multiple nodes are configured with the same time and frequency resources for the sensing signal. If the receiver receives linear frequency modulated waveform (LFM) sensing reference signals transmitted simultaneously at the same frequency by different transmitters, it cannot distinguish the source of the sensing reference signal. Summary of the Invention

[0004] The purpose of this disclosure is to provide a sensing method, apparatus, and device that solves the problem that the receiving end cannot distinguish the sensing signals transmitted simultaneously by multiple nodes at the same frequency.

[0005] Embodiments of this disclosure provide a sensing method, including:

[0006] The sensing receiving device receives sensing signals transmitted by at least two sensing transmitting devices;

[0007] The sensing receiving device measures the sensing signal according to the sensing configuration information to obtain the sensing measurement value;

[0008] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0009] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0010] Phase modulation rate of the sensed signal.

[0011] Embodiments of this disclosure provide a sensing method, including:

[0012] The sensing and transmitting device generates sensing signals based on the sensing configuration information;

[0013] The sensing and transmitting device transmits the sensing signal;

[0014] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0015] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0016] Phase modulation rate of the sensed signal.

[0017] Embodiments of this disclosure provide a sensing method, including:

[0018] The first functional network element sends sensing configuration information to the sensing transmitting device and the sensing receiving device;

[0019] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0020] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0021] Phase modulation rate of the sensed signal.

[0022] Embodiments of this disclosure provide a communication device, including: a memory, a transceiver, and a processor.

[0023] A memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0024] Generate sensing signals based on sensing configuration information;

[0025] Send the sensing signal;

[0026] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0027] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0028] Phase modulation rate of the sensed signal.

[0029] Embodiments of this disclosure provide a communication device, including: a memory, a transceiver, and a processor.

[0030] A memory for storing computer programs; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0031] Send sensing configuration information to the sensing transmitting device and the sensing receiving device;

[0032] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0033] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0034] Phase modulation rate of the sensed signal.

[0035] Embodiments of this disclosure provide a sensing device, including:

[0036] The first receiving unit is used to receive sensing signals sent by at least two sensing transmitting devices;

[0037] The first processing unit is used to measure the sensing signal according to the sensing configuration information to obtain the sensing measurement value;

[0038] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0039] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0040] Phase modulation rate of the sensed signal.

[0041] Embodiments of this disclosure provide a sensing device, including:

[0042] The second processing unit is used to generate sensing signals based on sensing configuration information;

[0043] The first transmitting unit is used to transmit the sensing signal;

[0044] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0045] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0046] Phase modulation rate of the sensed signal.

[0047] Embodiments of this disclosure provide a sensing device, including:

[0048] The second transmitting unit is used to send sensing configuration information to the sensing transmitting device and the sensing receiving device.

[0049] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0050] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0051] Phase modulation rate of the sensed signal.

[0052] Embodiments of this disclosure provide a processor-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described sensing method.

[0053] The beneficial effects of the above-mentioned technical solution disclosed herein are:

[0054] In embodiments of this disclosure, a sensing transmitting device performs segmented phase modulation on a sensing signal, and a sensing receiving device measures the sensing signals transmitted by at least two sensing transmitting devices according to sensing configuration information. The sensing configuration information includes one or more of the following: the number of time segments for segmented phase modulation of the sensing signal by the sensing transmitting device and the phase modulation rate. Based on the parameters of the sensing signals from each sensing transmitting device, the sensing receiving device can obtain the sensing measurement value corresponding to the sensing signal transmitted by each sensing transmitting device. Attached Figure Description

[0055] Figure 1 shows one of the flowcharts of the sensing method according to an embodiment of the present disclosure;

[0056] Figure 2 is a schematic diagram showing the frequency of a signal waveform over time according to an embodiment of the present disclosure;

[0057] Figure 3 is a schematic diagram showing the phase change of the signal waveform over time according to an embodiment of the present disclosure;

[0058] Figure 4 shows a schematic diagram of the time and frequency changes of the signal according to an embodiment of the present disclosure;

[0059] Figure 5 shows one of the schematic diagrams illustrating the phase and time changes of a signal according to an embodiment of this disclosure;

[0060] Figure 6 shows a second schematic diagram of the phase and time changes of the signal according to an embodiment of the present disclosure;

[0061] Figure 7 shows one of the schematic diagrams of the distance phase domain according to an embodiment of the present disclosure;

[0062] Figure 8 shows a second schematic diagram of the distance phase domain according to an embodiment of the present disclosure;

[0063] Figure 9 shows a third schematic diagram of the distance phase domain according to an embodiment of this disclosure;

[0064] Figure 10 shows a second schematic flowchart of the sensing method according to an embodiment of the present disclosure;

[0065] Figure 11 shows a third schematic flowchart of the sensing method according to an embodiment of the present disclosure;

[0066] Figure 12 shows a schematic diagram of the structure of a sensing device according to an embodiment of the present disclosure;

[0067] Figure 13 shows a second schematic diagram of the structure of the sensing device according to an embodiment of the present disclosure;

[0068] Figure 14 shows a third schematic diagram of the structure of the sensing device according to an embodiment of the present disclosure;

[0069] Figure 15 shows a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure;

[0070] Figure 16 shows a second schematic diagram of the structure of a communication device according to an embodiment of this disclosure;

[0071] Figure 17 shows a third schematic diagram of the structure of a communication device according to an embodiment of this disclosure. Detailed Implementation

[0072] To make the technical problems, solutions, and advantages of this disclosure clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this disclosure. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0073] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a particular feature, structure, or characteristic relating to an embodiment is included in at least one embodiment of this disclosure. Therefore, "in one embodiment" or "one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0074] In the various embodiments of this disclosure, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this disclosure.

[0075] In this disclosure, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0076] In this disclosure, the term "multiple" refers to two or more, and other quantifiers are similar.

[0077] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0078] The embodiments of this disclosure provide a sensing method, apparatus, and device to solve the problem that the receiving end cannot distinguish the sensing signals transmitted simultaneously by multiple nodes at the same frequency.

[0079] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0080] As shown in Figure 1, an embodiment of this disclosure provides a sensing method applied to a sensing receiving device, specifically including the following steps:

[0081] Step 101: The sensing receiving device receives sensing signals sent by at least two sensing transmitting devices;

[0082] Step 102: The sensing receiving device measures the sensing signal according to the sensing configuration information to obtain the sensing measurement value;

[0083] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0084] (1) Number of time segments: This indicates the number of time segments into which the sensed signal is segmented for phase modulation. Each sensing and transmitting device segments the duration of the signal to be transmitted based on this number of time segments and performs phase modulation. For example, if the duration of the signal to be transmitted is T and the number of time segments is K, then the signal to be transmitted is evenly divided into K parts, and the duration of each part is... For the waveform of K parts of the signal, its total duration is the same as the duration period T.

[0085] (2) Phase modulation rate of the sensing signal; used to perform phase modulation on the sensing signal, each sensing and transmitting device corresponds to a phase modulation rate; each sensing and transmitting device performs segmented phase modulation on the signal to be transmitted based on its own phase modulation rate and the number of time segments of the sensing signal. The phase modulation rate can also be understood as the modulation coefficient on the phase.

[0086] In this embodiment, the sensing transmitting device is used to transmit sensing signals, and the sensing receiving device is used to receive sensing signals. The sensing signal is used by the receiving end to sense a target object. Multiple sensing transmitting devices can correspond to one sensing receiving device, and multiple sensing transmitting devices can transmit sensing signals simultaneously to achieve collaborative sensing. The sensing transmitting device and the sensing receiving device can be a base station or a terminal.

[0087] The sensing process can include single-base mode and multi-base mode. In single-base mode, the base station (or terminal) actively transmits a sensing signal, which is then reflected and scattered by the target object and received by the same base station (or terminal). This can also be understood as the sensing transmitting device and the sensing receiving device being the same device. In multi-base mode, the base station (or terminal) actively transmits a sensing signal, which is then reflected and scattered by the target object and received by different terminals (or base stations). This can also be understood as the sensing transmitting device and the sensing receiving device being different devices.

[0088] The target object is a device to be detected, located, or tracked. This device itself does not communicate with the cellular system, therefore the sensing system is unaware of its presence. This device is typically one that has entered the sensing system's range without authorization. The sensing receiving device estimates one or more information about the target, such as its position, velocity, and orientation, by receiving the sensing signals reflected or scattered by the target object; this is a form of passive positioning.

[0089] It should be noted that the sensing signal in this embodiment can represent all reference signals that can be used to detect the channel, including, for example, already defined reference signals such as Positioning Reference Signal (PRS), Channel State Information Reference Signal (CSI-RS), and Positioning Sounding Reference Signal (SRS-Pos) that can be used for positioning in 5G technology, and may also include reference signals that are not yet defined and are used for integrated sensing and communication, which are not limited here.

[0090] At least two sensing transmitting devices send sensing signals. After receiving the sensing signals sent by the at least two sensing transmitting devices, the sensing receiving device measures the received sensing signals according to sensing configuration information to obtain the measurement value corresponding to the sensing signal sent by each sensing transmitting device. The sensing configuration information is sent by a first functional network element, which is used to configure the sensing configuration information and can provide different sensing services. The first functional network element is, for example, a sensing function (SF).

[0091] Both the sensing transmitting device and the sensing receiving device can obtain the sensing configuration information. The sensing configuration information for each sensing transmitting device may contain only the parameters corresponding to that specific sensing transmitting device, or it may also include parameters corresponding to other sensing transmitting devices. The sensing configuration information for the sensing receiving device includes parameters corresponding to all sensing transmitting devices. An example is given below.

[0092] For example: Assume there are two sensing and transmitting devices. The sensing configuration information configured for sensing and transmitting device 1 includes: the number of time segments K for segmented phase modulation of the sensing signal; and the phase modulation rate p1 of the sensing signal corresponding to sensing and transmitting device 1. The sensing configuration information configured for sensing and transmitting device 2 includes: the number of time segments K for segmented phase modulation of the sensing signal; and the phase modulation rate p2 of the sensing signal corresponding to sensing and transmitting device 2.

[0093] In some embodiments, the sensing configuration information of the sensing transmitting device 1 and the sensing transmitting device 2 may also include the phase modulation rate p1 of the sensing signal corresponding to the sensing transmitting device 1 and the phase modulation rate p2 of the sensing signal corresponding to the sensing transmitting device 2.

[0094] The sensing configuration information for the sensing receiving device includes: the number of time segments K for segmented phase modulation of the sensing signal; the phase modulation rate p1 of the sensing signal corresponding to sensing transmitting device 1; and the phase modulation rate p2 of the sensing signal corresponding to sensing transmitting device 2. The number of time segments is the same for each sensing transmitting device.

[0095] In embodiments of this disclosure, a sensing transmitting device performs segmented phase modulation on a sensing signal, and a sensing receiving device measures the sensing signals transmitted by at least two sensing transmitting devices according to sensing configuration information. The sensing configuration information includes one or more of the following: the number of time segments for segmented phase modulation of the sensing signal by the sensing transmitting device and the phase modulation rate. Based on the parameters of the sensing signals from each sensing transmitting device, the sensing receiving device can obtain the sensing measurement value corresponding to the sensing signal transmitted by each sensing transmitting device.

[0096] As an optional embodiment, the sensing and transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0097] In this embodiment, each sensing transmitting device has a corresponding sensing signal phase modulation rate. In some embodiments, the phase modulation rate corresponding to each sensing transmitting device is different. Thus, the signal waveforms obtained after the sensing transmitting devices perform phase modulation on the sensing signal based on the phase modulation rate are different, and the sensing receiving device can distinguish the sensing measurement values ​​corresponding to each sensing transmitting device based on the phase modulation rate.

[0098] As an optional embodiment, the at least two sensing transmitting devices transmit sensing signals at the same time and / or at the same frequency.

[0099] In this embodiment, multiple sensing and transmitting devices simultaneously transmit sensing signals at the same frequency, but use different phase modulation rates to perform time-segmented modulation on the sensing signals. This can also be understood as multiple sensing and transmitting devices simultaneously transmitting sensing signals at the same frequency but with different phases. The waveform of the sensing and transmitting device performing segmented phase modulation on the signal to be transmitted in this embodiment can be called a linear frequency and phase modulation (LFPM) waveform.

[0100] Assuming a Linear Frequency Modulation (LFM) waveform has a duration of T, then if the LFPM is divided into K equal parts, the duration of each LFPM part is... For the K portions of the LFPM waveform, its duration is the same as that of the LFM waveform, both being T. The carrier frequency (also called the carrier frequency point) of the LFPM is the same as that of the LFM, both being f0, and the modulation frequency of the LFPM is also the same as that of the LFM, both being f0. Where B represents the system bandwidth. Since different LFPM waveforms occupy the same bandwidth, they are also frequency-multiplexed. Different LFPM waveforms have different modulation coefficients (i.e., phase modulation rates) on the phase of each segmented waveform. For example, for the m-th LFPM waveform, the phase modulation is j2πp. m k, where k∈[1,2,…,K], and K is the number of segments into which an LFM waveform of duration T is divided. For example, Figures 2 and 3 show schematic diagrams of the frequency and phase of the LFPM waveform as a function of time when T=4.

[0101] As an optional embodiment, the method further includes: receiving sensing configuration information sent by a first functional network element; the first functional network element is deployed on the terminal side or the network side device side; or, the first functional network element is an independent device.

[0102] In this embodiment, the sensing configuration information is configured by a first functional network element. The first functional network element can be a sensing server, or it can be deployed in a base station, cell, or user equipment (UE) (specific UE). Alternatively, the first functional network element can also be an undefined network element used to perform the same function, which is not limited here.

[0103] As an optional embodiment, the parameters of the sensing signal further include at least one of the following:

[0104] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0105] The carrier frequency point f0 of the sensed signal;

[0106] The duration T of the sensed signal;

[0107] The modulation frequency μ of the sensed signal.

[0108] In this embodiment, for each sensing transmitting device in the collaborative sensing, the duty cycle, carrier frequency, duration T, and modulation frequency μ of the sensing signal are all the same.

[0109] The duty cycle of the sensing signal is less than 1, and the duty cycle indicates the proportion of the actual duration of the transmitted sensing signal within the configured signal duration T. The number of time segments is the number of segments used to divide the actual duration of the transmitted sensing signal. For example, if the configured signal duration is T = 10ms and the duty cycle is 0.5, then the sensing signal is transmitted for 5ms. The number of time segments is the number of segments into which these 5ms are divided, and the sensing transmitting device performs segmented phase modulation within these 5ms. It should be noted that if no duty cycle is configured, the number of time segments is the number of segments used to divide the configured signal duration. For example, if the duration of an LFPM signal is configured to be the length T of an Orthogonal Frequency Division Multiplexing (OFDM) symbol, and no duty cycle is configured, then the duration T is segmented.

[0110] For example, for a sensing transmission device, the sensing configuration information includes: carrier frequency f0, transmission signal duration T, modulation frequency μ, number of time segments K, duty cycle, and phase modulation rate p. m .

[0111] For the sensing receiving device, the sensing configuration information includes: carrier frequency f0, transmission signal duration T, modulation frequency μ, number of time segments K, duty cycle, and phase modulation rate [p1, p2, ..., p] for each sensing signal. M ].

[0112] As an optional embodiment, the sensing configuration information further includes at least one of the following:

[0113] (1) Configuration information of sensing resources; used to indicate the opportunity to transmit sensing signals (also known as LFPM pulse waves) in a certain time unit (such as a 10ms frame). The configuration information may include at least one of the following: the duration of the time unit, and the time slot containing the opportunity to transmit sensing signals within the time unit, which may be one or more.

[0114] Within a time slot, there is one or more OFDM symbols that contain the opportunity to transmit sensing signals.

[0115] In frequency resources, one or more of the following are considered: the number of Physical Resource Blocks (PRBs) occupied by the sensing signal, the starting position of the Resource Element (RE), and the Comb size.

[0116] (2) Information about the signal transmitting device; such as the device identifier and location of the signal transmitting device.

[0117] (3) Information about the signal receiving device; such as the device identifier and location of the signal receiving device.

[0118] The first functional network element determines the sensing configuration information and configures the sensing receiving device and the sensing transmitting device. For example, a certain sensing node can be configured as a receiving node, a transmitting node, or a transmitting and receiving node. In the embodiments of this disclosure, the node is configured to both transmit and receive by default.

[0119] After receiving the sensing configuration information, the sensing transmitting device generates and transmits a sensing signal based on the sensing configuration information. Specifically, the sensing transmitting device segments the duration of the sensing signal to be transmitted according to the number of time segments; within each time segment, phase modulation is performed according to the phase modulation rate to obtain the sensing signal.

[0120] The following example illustrates the process by which the sensing transmitting device generates sensing signals.

[0121] (1) The sensing and transmitting device first generates a baseband signal (time domain): s base (t,k)=exp(jπμt 2 +j2πp m k);

[0122] Where t is the duration of an LFPM symbol. μ is the frequency modulation rate, calculated based on the system bandwidth and symbol duration. K is the number of segments into which an LFM waveform of duration T is divided. 0 <p m <1 represents the phase modulation rate of the m-th LFPM waveform. For each LFPM symbol, the duration is...

[0123] (2) The sensing and transmitting device generates a carrier signal (time domain): f c (t) = exp(j2πf0t); f0 is the carrier frequency.

[0124] (3) The sensing and transmitting device uses the baseband signal and carrier signal to perform up-conversion to generate a radio frequency signal: s(t,k)=exp(j2πf0t+jπμt) 2 +j2πp m k).

[0125] (4) The signal after the radio frequency signals of multiple sensing and transmitting devices are transmitted through the channel (ignoring noise, the sensing signals of multiple sensing and transmitting devices are superimposed) is:

[0126] Each sensing transmitting device determines the timing for transmitting sensing signals based on its sensing configuration information, and all sensing transmitting devices simultaneously transmit sensing signals at the same frequency according to the specified timing. The sensing receiving device receives the sensing signals and measures them according to the sensing configuration information to obtain the sensing measurement value corresponding to each sensing transmitting device.

[0127] As an optional embodiment, the step of measuring the sensing signal according to the sensing configuration information to obtain the sensing measurement value includes:

[0128] The sensing signal is mixed with a first signal to obtain a first result, wherein the first signal is a signal generated by the sensing receiving device according to the sensing configuration information.

[0129] Perform a Fourier transform on the first result based on the number of time segments to obtain an information matrix including distance information and phase information;

[0130] Based on the phase modulation rate, the perceived measurement value corresponding to the phase modulation rate is obtained from the information matrix.

[0131] In this embodiment, the sensing receiving device determines the sensing signal configuration of different sensing transmitting devices based on sensing configuration information, and detects the sensing measurement value of the echo signal in the received sensing signal, such as transmission delay. The sensing receiving device, in conjunction with the sensing signal configuration of different sensing transmitting devices, associates the detected sensing measurement value with the sensing transmitting node.

[0132] Specifically: The sensing and receiving device performs a down-conversion operation on the received signal based on the carrier frequency f0. The sensing and receiving device generates a first signal configured according to the number of its own nodes, and mixes the generated first signal with the down-converted received signal. This mixing operation can be understood as a linear convolution operation. The linearly convolved signal is then subjected to a piecewise Fourier transform in the numerical domain (phase domain) to obtain an information matrix including distance and phase information. This information matrix can be displayed in the form of a peak spectrum, such as a two-dimensional peak spectrum in the range-phase domain.

[0133] Among them, the sensing receiving device generates a local signal for down-conversion based on the sensing configuration information: (time domain): f l (t) = exp(-j2πf0t); The received signal is down-converted using the local signal:

[0134] As an optional embodiment, the mixing operation between the sensed signal and the first signal includes:

[0135] Based on the sensing configuration information, a plurality of first signals are generated, and one of the plurality of first signals is selected to perform a mixing operation with the sensing signal;

[0136] Alternatively, a first signal may be generated based on the sensing configuration information corresponding to the target sensing transmitting device, and the first signal may be mixed with the sensing signal, wherein the target sensing transmitting device is one of the at least two sensing transmitting devices.

[0137] In this embodiment, the sensing receiving device can generate multiple first signals based on the sensing configuration information, for example, generating first signals according to the phase modulation rate corresponding to each sensing transmitting device: s m (t,k)=exp(jπμt 2 +j2πp m k), select one of the first signals and mix it with the down-converted received signal. For example, select the first signal corresponding to the first sensing and transmitting device: s1(t,k)=exp(jπμt) 2 +j2πp1k), and perform a mixing operation with the down-converted received signal.

[0138] Alternatively, the sensing receiving device may also choose to generate a first signal based on the sensing configuration information corresponding to a certain sensing transmitting device, for example, generating a first signal based on the sensing configuration information corresponding to the first sensing transmitting device: s1(t,k)=exp(jπμt 2+j2πp1k), using the first signal to perform a mixing operation with the down-converted received signal.

[0139] The mixing operation involves performing a linear convolution operation between the first signal and the down-converted received signal, for example, using s1(t,k)=exp(jπμt). 2 +j2πp1k) and y base The linear convolution operation on (t,k) is as follows: y mix (t,k)=y base (t,k)*s1(t,k)*

[0140] y mix (t,k) is the result of linear convolution, i.e., the first result.

[0141] The sensing and receiving device performs a Fourier transform on the first result of the linear convolution with the number of segments K (as shown in the formula below) to obtain an information matrix Y(t,p) that includes distance and phase information:

[0142] The information matrix can be represented as a two-dimensional peak spectrum in the time domain (distance domain) and phase domain.

[0143] As an optional embodiment, the method further includes: obtaining the sensed measurement value corresponding to the phase modulation rate from the information matrix based on the phase modulation rate, including:

[0144] Based on the phase modulation rate of each of the at least two sensing and transmitting devices, the phase point corresponding to the sensing and transmitting device is determined; based on the phase point, the sensing measurement value corresponding to the phase modulation rate is determined from the information matrix.

[0145] In this embodiment, after the sensing receiving device obtains an information matrix including distance information and phase information, it can obtain the phase modulation rate corresponding to each sensing transmitting device according to the sensing configuration information. Based on the phase modulation rate, the corresponding phase point can be found from the information matrix, thereby obtaining other parameters at the phase point. The parameters corresponding to the phase point are the measured values ​​of the sensing signals transmitted by the sensing transmitting device corresponding to the phase modulation rate.

[0146] The analysis shows that at the time domain point and the phase domain K(p) m -p1) reaches its maximum value, which is K*N. m∈[1,2,3…,M], therefore the information matrix has a total of M peaks. By pre-setting the phase modulation rate corresponding to different sensing and transmitting devices, the position of different sensing and transmitting devices in the peak spectrum corresponding to the information matrix can be inferred, thereby completing the differentiation of multi-node distance information.

[0147] As an optional embodiment, the method further includes:

[0148] Send first information to the first functional network element; wherein the first information includes at least one of the following: the identifier of the sensing receiving device, the identifier of the sensing transmitting device, and the sensing measurement value corresponding to the sensing transmitting device.

[0149] In this embodiment, the sensing receiving device can report the sensing measurement values ​​corresponding to each sensing transmitting device to the first functional network element. In some embodiments, when reporting the sensing measurement values, the device may include indication information of the sensing receiving device and information of the detected sensing transmitting device. For example, the information reporting format is {sensing receiving device identifier (Identifier, ID), detected sensing transmitting device ID, echo signal sensing measurement value}.

[0150] The following explains the mixing operation and the process of determining the phase point based on the phase modulation rate.

[0151] The sensing and receiving device mixes its own generated first signal with the received signal. The mixing operation is a linear convolution process, represented by matrix notation. For example, if the first signal is [1,2,3] and the delay is 2Ts, the received signal is [0,0,1,2,3].

[0152] The linear convolution matrix is:

[0153] Therefore, linear convolution y mix (t,k)=y base (t,k)*s base For each term on the right-hand side of (t,k), y base (t,k) represents the received signal, s base (t,k) is the first signal, which can be represented in matrix form after linear convolution, as follows:

[0154] Assume t = nT s , If the sequence length is assumed to be N+1, then

[0155] y base (t,k)=exp(-j2πf0τ+jπμ(nT s -τ) 2 +j2πp m k) n×2n-1 The matrix representation is as follows:

[0156] The omitted portion of this matrix is ​​a matrix of all zeros, and its column count is [τ / T]. s ].

[0157] The received signal is mixed with the first signal (linear convolution):

[0158] Add the terms after mixing: exp(-j2πf0τ+jπμτ) 2 )(exp(-jπμNT s τ)+exp(-jπμ(N-2)T s τ)+exp(-jπμ(N-4)T s τ)+…exp(jπμ(N-2)T s τ)+exp(jπμNT s τ));

[0159] Wherein, for (exp(-jπμNT) s τ)+exp(-jπμ(N-2)T s τ)+exp(-jπμ(N-4)T s τ)+…exp(jπμ(N-2)T s τ)+exp(jπμNT s τ)),

[0160] The mixing signal can then be represented as:

[0161] Instant domain swipe to There is a maximum value, and the maximum value is...

[0162] Perform a Fourier transform on the mixed signal, with the transform dimension being the number of segments K (Fourier transform in the phase domain):

[0163] in, That is, there exists a maximum value in the phase domain when p = 0, and the maximum value is K.

[0164] Therefore, the sensing receiving device determines the phase point corresponding to each sensing transmitting device, and the corresponding sensing measurement value can be determined based on the phase point.

[0165] The following example illustrates the specific implementation process of the sensing transmitting device sending a sensing signal, and the sensing receiving device receiving the sensing signal and obtaining the sensing measurement in this embodiment of the disclosure, including:

[0166] Step 1: First functional network element indicates sensing configuration information

[0167] The sensing configuration information includes: sensing resource configuration information, receiving and / or transmitting node configuration (configuration of sensing transmitting devices and sensing receiving devices), and sensing signal parameters.

[0168] Among them, the sensing resource configuration information is used to indicate the transmission opportunity of the sensing reference signal (LFPM pulse wave) in a certain time unit (e.g., a 10ms frame). The sensing resource configuration information includes:

[0169] 1) Duration of the time unit; and within the time unit, there is one or more slots that contain the opportunity to transmit the sensing reference signal.

[0170] The configured time unit duration T = 10ms, using a bitmap method to indicate the transmission time of sensing signals contained in one or more OFDM symbols. When the subcarrier spacing Δf = 15kHz, the bitmap length is 10 bits. For example: LFPM_slot = {b1,b2,b3,b4,b5,b6,b7,b8,b8,b10} = {0100001000}, indicating that slots 1 and 6 contain opportunities to transmit sensing signals.

[0171] 2) In a time slot, there is one or more OFDM symbols that provide an opportunity to transmit a sensing signal.

[0172] Considering that a slot can contain a maximum of 14 OFDM symbols, a bitmap method is used to indicate the OFDM symbols that contain opportunities to transmit sensing signals. LFPM_sym = {b1,b2,b3,b4,b5,b6,b7,b8,b8,b10,b11,b12,b13,b14} = {11100000000000}. This indicates that OS#0 (symbol 0), OS#1, and OS#2 contain opportunities to transmit sensing signals.

[0173] 3) In frequency resources, the number of PRBs occupied by the sensing signal, the starting position of the RE, and the comb size.

[0174] The number of available PRBs effectively defines the bandwidth. For example, with a subcarrier spacing Δf = 15 kHz, a bandwidth of 20 MHz is achieved when there are 106 available PRBs. The RE start position, together with the comb tooth size, determines the specific location of the sensed signal within each PB. The comb tooth size can be any value from [2, 4, 6, 12], while the RE start position can be any value from [0, Comb size - 1]. For example, if the Comb size is 4, the RE start position can be any value from [0, 1, 2, 3].

[0175] The parameters of the sensed signal include:

[0176] The parameters of the transmitted / received sensing signals can be divided into two types:

[0177] For the transmitting node (sensing transmitting device), the sensing signal parameters include: carrier frequency f0, transmission signal duration T, modulation frequency μ, number of time segments K, duty cycle, and phase modulation rate p. m .

[0178] f0 is the carrier transmission frequency, which takes values ​​of [0.45~6] GHz or [24~52.6] GHz.

[0179] The duration of the transmitted signal, T, and the symbol occupancy indicator (LFPM_sym) simultaneously determine the duration of the LFPM signal. For example, if LFPM_sym = {11100000000000}, then the first three OFDM symbols transmit LFPM signals. In this case, there are several possible combinations of transmitted signals: 1. Transmitted signal duration T = 3, transmitting one LFPM signal with a length of 3 OFDM symbols. 2. Transmitted signal duration T1 = 2, T2 = 1 (or vice versa), transmitting two LFPM signals, where the first LFPM signal lasts for 2 OFDM symbols and the second LFPM signal lasts for 1 OFDM symbol. 3. Transmitted signal duration T = 3, transmitting three LFPM signals, each lasting for 1 OFDM symbol.

[0180] Time segment number: A positive integer. Indicates the number of phase modulation segments in an LFPM signal.

[0181] Duty cycle: Indicates the proportion of the actual duration of the transmitted sensing signal to the total signal duration. It can be indicated using a bitmap. For example, if the configured signal duration is T = 10 ms, and 5 ms of that is used to transmit the sensing signal, this represents an LFPM signal with a duty cycle of 0.5. For Time Division Duplex (TDD) systems, the duty cycle determines the blind zone range of signal detection.

[0182] Phase modulation rate p m The value is a decimal between [0, 1]. The phase modulation rate is bound to the transmitting node number, and each transmitting node should be configured with a different phase modulation rate to distinguish the signals from different transmitting nodes. For example, in a 4-node simultaneous transmission system, the phase modulation rates of nodes 1 to 4 are respectively...

[0183] For the receiving node (sensing receiving device), the sensing signal parameters include: carrier frequency f0, transmission signal duration T, duty cycle, modulation frequency μ, number of time segments K, and phase modulation rate [p1, p2, ..., p] of each transmitted signal. M].

[0184] The configuration of the sensing receiving device and / or sensing transmitting device is used to indicate the transmission and reception configuration of the sensing node, such as sending and / or receiving.

[0185] The first functional network element configures the sensing transmitting and receiving devices for the sensing resources configured above. Specifically:

[0186] A given sensing node can be configured as a receiving device, a transmitting device, or both. The default configuration allows the node to both transmit and receive.

[0187] Step 2: Sensing signal transmission and processing

[0188] Based on the configuration in step 1, the sensing and transmitting devices determine the timing for transmitting the sensing signal, and all sensing and transmitting devices simultaneously transmit sensing signals at the same frequency according to the transmission timing. The specific process is as follows:

[0189] Assuming M LFPM signals are transmitted, for the transmission of multiple LFPM signals:

[0190] 1) The sensing and transmitting device generates a baseband signal (time domain): s base (t,k)=exp(jπμt 2 +j2πp m k);

[0191] Where m∈[1,2,…,M] is the number of LFPM signals transmitted simultaneously.

[0192] 2) The sensing and transmitting device generates a carrier signal (time domain): f c (t)=exp(j2πf0t);

[0193] 3) The sensing and transmitting equipment up-converts the carrier signal to obtain the radio frequency signal: s(t,k)=exp(j2πf0t+jπμt) 2 +j2πp m k);

[0194] 4) Radio frequency signals are transmitted through a channel (ignoring noise, signals from multiple sensing and transmitting devices are superimposed):

[0195] Step 3: Based on the configuration in Step 1, the sensing receiving device determines the sensing signal configuration of different sensing transmitting devices, detects the sensing parameters (such as transmission delay) of the echo signal in the received signal, and, in conjunction with the sensing signal configuration of different sensing transmitting devices, matches the detected sensing measurement value with the sensing transmitting device and reports it to the first functional network element.

[0196] Specifically: The sensing and receiving device performs a down-conversion operation on the received signal based on the carrier frequency f0. The receiving node generates a sensing signal configured according to its own node count, and then performs a linear convolution operation between the generated sensing signal and the down-converted received signal. The linearly convolved signal is then subjected to a piecewise Fourier transform in the numerical domain (phase domain) to generate a two-dimensional peak spectrum in the range-phase domain.

[0197] Based on the phase modulation rate [p1, p2, ..., p] of each transmitted signal M The corresponding sensing and transmitting devices correspond to the points on the peak spectrum [0, K(p2-p1), ..., K(p...]. m The peak point's sensing measurement value is correlated with the sensing transmission device and reported to the first functional network element.

[0198] Taking a scenario where there are 5 segments and 4 sensing and transmitting devices simultaneously transmitting signals, with the phase modulation rates of sensing and transmitting devices 1 to 4 being respectively... For example, on the phase axis, the points on the peak spectrum are [0, 1, 2, 3]. Then the node number (device identifier) ​​is [0, 1, 2, 3] + [1, 1, 1, 1] = [1, 2, 3, 4].

[0199] Specific information reporting format: When reporting the sensed measurement values, the current receiving device's indication information and the detected transmitting device's information can be attached. The information reporting format can be {receiving device ID, detected transmitting device ID, echo signal sensed measurement value}.

[0200] Specifically, the process of a sensing and receiving device receiving and processing signals includes:

[0201] The sensing and receiving device generates a local signal (time domain) for down-conversion: f l (t)=exp(-j2πf0t);

[0202] The signal after down-conversion of the received signal:

[0203] The received signal is mixed with a selected transmitted signal (linear convolution):

[0204] For example, the selected transmission signal is: s1(t,k)=exp(jπμt) 2 +j2πp1k)

[0205] Mixing operation: y mix (t,k)=y base (t,k)*s1(t,k)*

[0206] The result of the linear convolution is subjected to a Fourier transform with the number of segments K to obtain a two-dimensional peak spectrum in the time domain (distance domain) and phase domain:

[0207] The analytical process for determining the phase point will not be elaborated here. As can be seen from the analysis, at the time domain point... and the phase domain K(p) m -p1) reaches its maximum value, which is K*N. m∈[1,2,3…,M], therefore there are a total of M peaks. By pre-setting different phase modulation rates corresponding to different sensing and transmitting devices, the corresponding positions of different sensing and transmitting devices in the peak spectrum can be inferred, thereby completing the differentiation of multi-node distance information.

[0208] For example: Figure 4 shows the time and frequency variations of the LPFM signal; Figures 5 and 6 show the phase and time variations of each signal in the chain; and Figure 7 is the final resolution diagram in the range-phase domain. The total time... (Same time as one OFDM symbol), duty cycle is (less than or equal to 1). Since MATLAB indexing starts from 1 (requiring a subtraction of 1), it can be seen that in the phase domain, the peak points appear at p1-p1=0 and... Points. As shown in Figure 7, since Matlab indexing starts from 1, the peak points in Figure 9 are points 1 and 7. exp(j2πf0t+jπμt) 2 +j2πp m k, p2=7 / 16, p2=1 / 16, k=16)

[0209] Since the embodiments of this disclosure use only one OFDM symbol, the cumulative effect of Doppler is relatively small. Considering the target moving along the line connecting the transmitter and receiver (with angles of 0 degrees and 180 degrees respectively), the velocity is set as: The carrier frequency is set to f c =3.5GHz, therefore the Doppler frequency offset is f d = ±v*fc / 3e8. Therefore, the Doppler accumulation is most severe at the 4096th point (time domain), with a phase accumulation value of 2π*f. d *4096*T s = 0.122 (rad), where T s =122.8MHz, which is the system sampling rate when the subcarrier spacing Δf = 30KHz and the system bandwidth is 100MHz. Therefore, for the embodiments of this disclosure, as long as the phase modulation frequency p m If the difference between -p1 and m∈[2,3,…,M] is greater than 0.122 (rad), then different phase-modulated signals can be distinguished in the phase domain. This is expressed as exp(j2πf0t+jπμt).2 +j2πp m Taking k as an example, where p2 = 7 / 16, p1 = 1 / 16, and k = 16, p2 - p1 = 0.375, then a speed of 180 km / h will not have a significant impact. Figures 8 and 9 show simulations at 180 km / h and 360 km / h, respectively. It can be seen that noise floor appears at 360 km / h, but it still does not affect the distinction between signals from different transmitters.

[0210] In embodiments of this disclosure, a sensing transmitting device performs segmented phase modulation on a sensing signal, and a sensing receiving device measures the sensing signals transmitted by at least two sensing transmitting devices according to sensing configuration information. The sensing configuration information includes one or more of the following: the number of time segments for segmented phase modulation of the sensing signal by the sensing transmitting device and the phase modulation rate. Based on the parameters of the sensing signals from each sensing transmitting device, the sensing receiving device can obtain the sensing measurement value corresponding to each sensing transmitting device.

[0211] As shown in Figure 10, this embodiment of the present disclosure also provides a sensing method applied to a sensing transmission device, including:

[0212] Step 1001: The sensing and transmitting device generates a sensing signal based on the sensing configuration information;

[0213] Step 1002: The sensing and transmitting device sends the sensing signal;

[0214] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0215] (1) Number of time segments: This indicates the number of time segments into which the sensed signal is segmented for phase modulation. The sensing and transmitting device segments the duration of the signal to be transmitted based on this number of time segments and performs phase modulation accordingly. For example, if the duration of the signal to be transmitted is T and the number of time segments is K, then the signal to be transmitted is evenly divided into K parts, and the duration of each part is... For the waveform of K parts of the signal, its total duration is the same as the duration period T.

[0216] (2) Phase modulation rate of the sensing signal; used to perform phase modulation on the sensing signal, each sensing and transmitting device corresponds to a phase modulation rate; the sensing and transmitting devices perform segmented phase modulation on the signal to be transmitted based on their own phase modulation rate and the number of time segments of the sensing signal. The phase modulation rate can also be understood as the modulation coefficient on the phase.

[0217] In this embodiment, the sensing transmitting device is used to transmit sensing signals, and the sensing receiving device is used to receive sensing signals. The sensing signal is used by the receiving end to sense a target object. Multiple sensing transmitting devices can correspond to one sensing receiving device, and multiple sensing transmitting devices can transmit sensing signals simultaneously to achieve collaborative sensing. The sensing transmitting device and the sensing receiving device can be a base station or a terminal.

[0218] The sensing signal in this disclosure can represent all reference signals that can be used to detect channels, including, for example, already defined reference signals such as PRS, CSI-RS, and SRS-Pos that can be used for 5G positioning, and can also include reference signals that are not yet defined and are used for integrated sensing and communication, without limitation.

[0219] The sensing configuration information is sent by the first functional network element (SF), which is used to configure the sensing configuration information and can provide different sensing services. The sensing configuration information for each sensing transmitting device may contain only the parameters corresponding to that sensing transmitting device, or it may also contain parameters corresponding to other sensing transmitting devices. The sensing configuration information for the sensing receiving device contains parameters corresponding to all sensing transmitting devices. An example is given below.

[0220] For example: Assume there are two sensing and transmitting devices. The sensing configuration information configured for sensing and transmitting device 1 includes: the number of time segments K for segmented phase modulation of the sensing signal; and the phase modulation rate p1 of the sensing signal corresponding to sensing and transmitting device 1. The sensing configuration information configured for sensing and transmitting device 2 includes: the number of time segments K for segmented phase modulation of the sensing signal; and the phase modulation rate p2 of the sensing signal corresponding to sensing and transmitting device 2.

[0221] In some embodiments, the sensing configuration information of the sensing transmitting device 1 and the sensing transmitting device 2 may also include the phase modulation rate p1 of the sensing signal corresponding to the sensing transmitting device 1 and the phase modulation rate p2 of the sensing signal corresponding to the sensing transmitting device 2.

[0222] In embodiments of this disclosure, the sensing transmitting device generates a sensing signal based on its corresponding sensing configuration information, and performs segmented phase modulation on the sensing signal. The sensing configuration information includes one or more of the following: the number of time segments for segmented phase modulation of the sensing signal by the sensing transmitting device, and the phase modulation rate. After receiving sensing signals from multiple sensing transmitting devices, the sensing receiving device can measure the sensing signals based on the sensing configuration information. According to the parameters of the sensing signals from each sensing transmitting device, it can obtain the sensing measurement value corresponding to the sensing signal transmitted by each sensing transmitting device.

[0223] As an optional embodiment, the sensing and transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0224] In this embodiment, each sensing transmitting device has a corresponding sensing signal phase modulation rate. In some embodiments, the phase modulation rate corresponding to each sensing transmitting device is different. Thus, the signal waveforms obtained after the sensing transmitting devices perform phase modulation on the sensing signal based on the phase modulation rate are different, and the sensing receiving device can distinguish the sensing measurement values ​​corresponding to each sensing transmitting device based on the phase modulation rate. The sensing configuration information may include the phase modulation rate corresponding to each sensing transmitting device.

[0225] As an optional embodiment, at least two sensing transmitting devices transmit sensing signals at the same time and / or at the same frequency.

[0226] In this embodiment, multiple sensing and transmitting devices simultaneously transmit sensing signals at the same frequency, but use different phase modulation rates to perform time-segmented modulation on the sensing signals. This can also be understood as multiple sensing and transmitting devices simultaneously transmitting sensing signals at the same frequency but with different phases. The waveform of the sensing and transmitting device performing segmented phase modulation on the signal to be transmitted in this embodiment can be called an LFPM waveform.

[0227] As an optional embodiment, the method further includes: receiving sensing configuration information sent by a first functional network element; the first functional network element is deployed on the terminal side or the network side device side; or, the first functional network element is an independent device.

[0228] In this embodiment, the sensing configuration information is configured by a first functional network element. The first functional network element may be a sensing server, a base station, a cell, or a UE (specific UE), or an undefined network element used to perform the same function, which is not limited here.

[0229] As an optional embodiment, the parameters of the sensing signal further include at least one of the following:

[0230] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0231] The carrier frequency of the sensed signal;

[0232] The duration of the sensed signal;

[0233] Frequency modulation of the sensed signal.

[0234] In this embodiment, for each sensing transmitting device in the collaborative sensing, the duty cycle, carrier frequency, duration T, and modulation frequency μ of the sensing signal are all the same.

[0235] The duty cycle of the sensing signal is less than 1, and the duty cycle indicates the proportion of the actual duration of the transmitted sensing signal within the configured signal duration T. The number of time segments is the number of segments used to divide the actual duration of the transmitted sensing signal. For example, if the configured signal duration is T = 10ms and the duty cycle is 0.5, then the sensing signal is transmitted for 5ms. The number of time segments is the number of segments into which these 5ms are divided, and the sensing transmitting device performs segmented phase modulation within these 5ms. It should be noted that if no duty cycle is configured, the number of time segments is the number of segments used to divide the configured signal duration. For example, if the duration of an LFPM signal is configured to be the length T of an OFDM symbol, and no duty cycle is configured, then the duration T is segmented.

[0236] For example, for a sensing transmission device, the sensing configuration information includes: carrier frequency f0, transmission signal duration T, modulation frequency μ, number of time segments K, duty cycle, and phase modulation rate p. m .

[0237] For the sensing receiving device, the sensing configuration information includes: carrier frequency f0, transmission signal duration T, modulation frequency μ, number of time segments K, duty cycle, and phase modulation rate [p1, p2, ..., p] for each sensing signal. M ].

[0238] As an optional embodiment, the sensing configuration information further includes at least one of the following:

[0239] (1) Configuration information of sensing resources; used to indicate the opportunity to transmit sensing signals (also known as LFPM pulse waves) in a certain time unit (such as a 10ms frame). The configuration information may include at least one of the following: the duration of the time unit, and the time slot containing the opportunity to transmit sensing signals within the time unit, which may be one or more.

[0240] Within a time slot, there is one or more OFDM symbols that contain the opportunity to transmit sensing signals.

[0241] In frequency resources, one or more of the following are considered: the number of PRBs occupied by the sensing signal, the starting position of the RE, and the comb size.

[0242] (2) Information about the signal transmitting device; such as the device identifier and location of the signal transmitting device.

[0243] (3) Information about the signal receiving device; such as the device identifier and location of the signal receiving device.

[0244] The first functional network element determines the sensing configuration information and configures the sensing receiving device and the sensing transmitting device. For example, a certain sensing node can be configured as a receiving node, a transmitting node, or a transmitting and receiving node. In the embodiments of this disclosure, the node is configured to both transmit and receive by default.

[0245] After receiving the sensing configuration information, the sensing transmitting device generates and transmits a sensing signal based on the sensing configuration information. Specifically, the sensing transmitting device segments the duration of the sensing signal to be transmitted according to the number of time segments; within each time segment, phase modulation is performed according to the phase modulation rate to obtain the sensing signal.

[0246] The process of generating sensing signals by the sensing and transmitting device is described below.

[0247] As an optional embodiment, generating the sensing signal based on the sensing configuration information includes:

[0248] The duration of the sensing signal to be transmitted is segmented according to the number of time segments.

[0249] Within each time segment, phase modulation is performed according to the stated phase modulation rate to obtain a sensing signal.

[0250] In this embodiment, the sensing and transmitting device segments the duration of a signal waveform based on the number of time segments. For each segment, phase modulation is performed based on its corresponding phase modulation rate to obtain the final transmitted sensing signal.

[0251] For example: (1) The sensing and transmitting device first generates a baseband signal (time domain): s base (t,k)=exp(jπμt 2 +j2πp m k);

[0252] Where t is the duration of an LFPM symbol. μ is the frequency modulation rate, calculated based on the system bandwidth and symbol duration. k∈[1,2,…,K], where K is the number of segments into which an LFM waveform of duration T is divided. <p m <1 represents the phase modulation rate of the m-th LFPM waveform. For each LFPM symbol, the duration is...

[0253] (2) The sensing and transmitting device generates a carrier signal (time domain): f c (t) = exp(j2πf0t); f0 is the carrier frequency.

[0254] (3) The sensing and transmitting device uses the baseband signal and carrier signal to perform up-conversion to generate a radio frequency signal: s(t,k)=exp(j2πf0t+jπμt) 2 +j2πp m k).

[0255] (4) The signal after the radio frequency signals of multiple sensing and transmitting devices are transmitted through the channel (ignoring noise, the sensing signals of multiple sensing and transmitting devices are superimposed) is:

[0256] Each sensing transmitting device determines the timing for transmitting sensing signals based on its sensing configuration information, and all sensing transmitting devices simultaneously transmit sensing signals at the same frequency according to the specified timing. The sensing receiving device receives the sensing signals and measures them according to the sensing configuration information to obtain the sensing measurement value corresponding to the sensing signal transmitted by each sensing transmitting device.

[0257] After receiving the sensing signal, the sensing receiving device performs a mixing operation between the sensing signal and a first signal to obtain a first result. The first signal is a signal generated by the sensing receiving device based on the sensing configuration information. The first result is then subjected to a Fourier transform based on the number of time segments to obtain an information matrix including distance information and phase information. Based on the phase modulation rate, the sensing measurement value corresponding to the phase modulation rate is obtained from the information matrix.

[0258] The process by which the sensing receiving device measures the sensing signal to obtain the sensing measurement value corresponding to each sensing transmitting device can be found in the embodiment of the sensing method executed by the sensing receiving device, and will not be described in detail here.

[0259] In embodiments of this disclosure, the sensing transmitting device generates a sensing signal based on its corresponding sensing configuration information and performs segmented point modulation on the sensing signal. The sensing configuration information includes one or more of the following: the number of time segments for segmented phase modulation of the sensing signal by the sensing transmitting device and the phase modulation rate. After receiving sensing signals from multiple sensing transmitting devices, the sensing receiving device can measure the sensing signals based on the sensing configuration information. According to the parameters of the sensing signals from each sensing transmitting device, it can obtain the sensing measurement value corresponding to the sensing signal transmitted by each sensing transmitting device.

[0260] As shown in Figure 11, this embodiment of the present disclosure provides a sensing method applied to a first functional network element, the method comprising:

[0261] Step 1101: The first functional network element sends sensing configuration information to the sensing transmitting device and the sensing receiving device;

[0262] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0263] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0264] Phase modulation rate of the sensed signal.

[0265] In this embodiment, the first functional network element is used to configure sensing configuration information and can provide different sensing services. The first functional network element can be deployed in a base station, core network, or terminal, or it can be an independent functional node; no limitation is made here.

[0266] The sensing configuration information may include sensing configuration information for sensing transmitting devices and sensing configuration information for sensing receiving devices. Specifically, the sensing configuration information for each sensing transmitting device may contain only the parameters corresponding to that sensing transmitting device, or it may also contain parameters corresponding to other sensing transmitting devices. The sensing configuration information for the sensing receiving device includes parameters corresponding to all sensing transmitting devices.

[0267] For example: Assume there are two sensing and transmitting devices. The sensing configuration information configured for sensing and transmitting device 1 includes: the number of time segments K for segmented phase modulation of the sensing signal; and the phase modulation rate p1 of the sensing signal corresponding to sensing and transmitting device 1. The sensing configuration information configured for sensing and transmitting device 2 includes: the number of time segments K for segmented phase modulation of the sensing signal; and the phase modulation rate p2 of the sensing signal corresponding to sensing and transmitting device 2.

[0268] In some embodiments, the sensing configuration information of the sensing transmitting device 1 and the sensing transmitting device 2 may also include the phase modulation rate p1 of the sensing signal corresponding to the sensing transmitting device 1 and the phase modulation rate p2 of the sensing signal corresponding to the sensing transmitting device 2.

[0269] The sensing configuration information for the sensing receiving device includes: the number of time segments K for segmented phase modulation of the sensing signal; the phase modulation rate p1 of the sensing signal corresponding to sensing transmitting device 1; and the phase modulation rate p2 of the sensing signal corresponding to sensing transmitting device 2. The number of time segments is the same for each sensing transmitting device.

[0270] As an optional embodiment, the sensing and transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0271] In this embodiment, each sensing transmitting device has a corresponding sensing signal phase modulation rate. In some embodiments, the phase modulation rate corresponding to each sensing transmitting device is different. Thus, the signal waveforms obtained after the sensing transmitting devices perform phase modulation on the sensing signal based on the phase modulation rate are different, and the sensing receiving device can distinguish the sensing measurement values ​​corresponding to each sensing transmitting device based on the phase modulation rate.

[0272] As an optional embodiment, at least two sensing transmitting devices transmit sensing signals at the same time and / or at the same frequency.

[0273] In this embodiment, multiple sensing and transmitting devices simultaneously transmit sensing signals at the same frequency, but use different phase modulation rates to perform time-segmented modulation on the sensing signals. The waveform of the sensing and transmitting device performing segmented phase modulation on the signal to be transmitted in this embodiment can be called an LFPM waveform.

[0274] As an optional embodiment, the parameters of the sensing signal further include at least one of the following:

[0275] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0276] The carrier frequency point f0 of the sensed signal;

[0277] The duration T of the sensed signal;

[0278] The modulation frequency μ of the sensed signal.

[0279] In this embodiment, for each sensing transmitting device in the collaborative sensing, the duty cycle, carrier frequency, duration T, and modulation frequency μ of the sensing signal are all the same.

[0280] The duty cycle of the sensing signal is less than 1, and the duty cycle indicates the proportion of the actual duration of the transmitted sensing signal within the configured signal duration T. The number of time segments is the number of segments used to divide the actual duration of the transmitted sensing signal. For example, if the configured signal duration is T = 10ms and the duty cycle is 0.5, then the sensing signal is transmitted for 5ms. The number of time segments is the number of segments into which these 5ms are divided, and the sensing transmitting device performs segmented phase modulation within these 5ms. It should be noted that if no duty cycle is configured, the number of time segments is the number of segments used to divide the configured signal duration. For example, if the duration of an LFPM signal is configured to be the length T of an OFDM symbol, and no duty cycle is configured, then the duration T is segmented.

[0281] For example, for a sensing transmission device, the sensing configuration information includes: carrier frequency f0, transmission signal duration T, modulation frequency μ, number of time segments K, duty cycle, and phase modulation rate p. m .

[0282] For the sensing receiving device, the sensing configuration information includes: carrier frequency f0, transmission signal duration T, modulation frequency μ, number of time segments K, duty cycle, and phase modulation rate [p1, p2, ..., p] for each sensing signal. M ].

[0283] As an optional embodiment, the sensing configuration information further includes at least one of the following:

[0284] (1) Configuration information of sensing resources; used to indicate the opportunity to transmit sensing signals (also known as LFPM pulse waves) in a certain time unit (such as a 10ms frame). The configuration information may include at least one of the following: the duration of the time unit, and the time slot containing the opportunity to transmit sensing signals within the time unit, which may be one or more.

[0285] Within a time slot, there is one or more OFDM symbols that contain the opportunity to transmit sensing signals.

[0286] In frequency resources, one or more of the following are considered: the number of PRBs occupied by the sensing signal, the starting position of the RE, and the comb size.

[0287] (2) Information about the signal transmitting device; such as the device identifier and location of the signal transmitting device.

[0288] (3) Information about the signal receiving device; such as the device identifier and location of the signal receiving device.

[0289] The first functional network element determines the sensing configuration information and configures the sensing receiving device and the sensing transmitting device. For example, a certain sensing node can be configured as a receiving node, a transmitting node, or a transmitting and receiving node. In the embodiments of this disclosure, the node is configured to both transmit and receive by default.

[0290] After receiving the sensing configuration information, the sensing transmitting device generates and transmits a sensing signal based on the sensing configuration information. Specifically, the sensing transmitting device segments the duration of the sensing signal to be transmitted according to the number of time segments; within each time segment, phase modulation is performed according to the phase modulation rate to obtain the sensing signal.

[0291] As an optional embodiment, the method further includes:

[0292] Receive first information sent by a sensing receiving device; wherein the first information includes at least one of the following: the identifier of the sensing receiving device, the identifier of the sensing sending device, and the sensing measurement value corresponding to the sensing sending device.

[0293] In this embodiment, the sensing receiving device can report the sensing measurement values ​​corresponding to each sensing transmitting device to the first functional network element. In some embodiments, when reporting the sensing measurement values, the device may include indication information of the sensing receiving device and information of the detected sensing transmitting device, for example, the information reporting format is {sensing receiving device ID, detected sensing transmitting device ID, echo signal sensing measurement value}.

[0294] In embodiments of this disclosure, the first functional network element is configured with sensing configuration information, which includes one or more of the following: the number of time segments for segmented phase modulation of the sensing signal by the sensing transmitting device and the phase modulation rate. Each sensing transmitting device has a corresponding phase modulation rate. Based on its respective phase modulation rate, the sensing signal is obtained by segmented phase modulation of the signal to be transmitted. Based on the parameters of the sensing signals from each sensing transmitting device, the sensing receiving device can obtain the sensing measurement value corresponding to each sensing transmitting device.

[0295] The above embodiments describe the sensing method of this disclosure. The following embodiments will further describe the corresponding devices in conjunction with the accompanying drawings.

[0296] Specifically, as shown in FIG12, this embodiment of the present disclosure provides a sensing device 1200, applied to a sensing receiving device, including:

[0297] The first receiving unit 1210 is used to receive sensing signals sent by at least two sensing transmitting devices;

[0298] The first processing unit 1220 is used to measure the sensing signal according to the sensing configuration information to obtain the sensing measurement value;

[0299] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0300] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0301] Phase modulation rate of the sensed signal.

[0302] In some embodiments, the sensing transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0303] In some embodiments, the at least two sensing transmitting devices transmit sensing signals at the same time and / or at the same frequency.

[0304] In some embodiments, the first processing unit is specifically used for:

[0305] The sensing signal is mixed with a first signal to obtain a first result, wherein the first signal is a signal generated by the sensing receiving device according to the sensing configuration information.

[0306] Perform a Fourier transform on the first result based on the number of time segments to obtain an information matrix including distance information and phase information;

[0307] Based on the phase modulation rate, the perceived measurement value corresponding to the phase modulation rate is obtained from the information matrix.

[0308] In some embodiments, obtaining the sensed measurement value corresponding to the phase modulation rate from the information matrix based on the phase modulation rate includes:

[0309] The phase point corresponding to the sensing and transmitting device is determined based on the phase modulation rate of each of the at least two sensing and transmitting devices.

[0310] Based on the phase point, the sensing measurement value corresponding to the phase modulation rate is determined from the information matrix.

[0311] In some embodiments, the mixing operation between the sensed signal and the first signal includes:

[0312] Based on the sensing configuration information, a plurality of first signals are generated, and one of the plurality of first signals is selected to perform a mixing operation with the sensing signal;

[0313] or,

[0314] A first signal is generated based on the sensing configuration information corresponding to the target sensing transmitting device, and the first signal is mixed with the sensing signal. The target sensing transmitting device is one of the at least two sensing transmitting devices.

[0315] In some embodiments, the parameters of the sensed signal further include at least one of the following:

[0316] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0317] The carrier frequency of the sensed signal;

[0318] The duration of the sensed signal;

[0319] Frequency modulation of the sensed signal.

[0320] In some embodiments, the sensing configuration information further includes at least one of the following:

[0321] Sensing resource configuration information;

[0322] Information from the sensing signal transmitting device;

[0323] Information from the sensing signal receiving device.

[0324] In some embodiments, the apparatus further includes:

[0325] The second receiving unit is used to receive the sensing configuration information sent by the first functional network element;

[0326] The first functional network element is deployed on the terminal side or the network side device side; or, the first functional network element is an independent device.

[0327] In some embodiments, the apparatus further includes:

[0328] The third transmitting unit is used to send first information to the first functional network element;

[0329] The first information includes at least one of the following: the identifier of the sensing receiving device, the identifier of the sensing transmitting device, and the sensing measurement value corresponding to the sensing transmitting device.

[0330] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the method embodiment applied to the sensing and receiving device, and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0331] Specifically, as shown in FIG13, this embodiment of the present disclosure provides a sensing device 1300, applied to a sensing transmission device, including:

[0332] The second processing unit 1310 is used to generate a sensing signal based on the sensing configuration information;

[0333] The first transmitting unit 1320 is used to transmit the sensing signal;

[0334] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0335] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0336] Phase modulation rate of the sensed signal.

[0337] In some embodiments, the sensing transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0338] In some embodiments, the sensing signals transmitted by at least two sensing transmitting devices are transmitted at the same time and / or at the same frequency.

[0339] In some embodiments, the parameters of the sensed signal further include at least one of the following:

[0340] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0341] The carrier frequency of the sensed signal;

[0342] The duration of the sensed signal;

[0343] Frequency modulation of the sensed signal.

[0344] In some embodiments, the second processing unit is specifically used for:

[0345] The duration of the sensing signal to be transmitted is segmented according to the number of time segments.

[0346] Within each time segment, phase modulation is performed according to the stated phase modulation rate to obtain a sensing signal.

[0347] In some embodiments, the sensing configuration information further includes at least one of the following:

[0348] Sensing resource configuration information;

[0349] Information from the sensing signal transmitting device;

[0350] Information from the sensing signal receiving device.

[0351] In some embodiments, the apparatus further includes:

[0352] The third receiving unit is used to receive the sensing configuration information sent by the first functional network element;

[0353] The first functional network element is deployed on the terminal side or the network side device side; or, the first functional network element is an independent device.

[0354] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above-described method embodiment for sensing and transmitting devices, and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0355] Specifically, as shown in FIG14, this embodiment of the present disclosure provides a sensing device 1400, applied to a first functional network element, including:

[0356] The second transmitting unit 1410 is used to transmit sensing configuration information to the sensing transmitting device and the sensing receiving device;

[0357] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0358] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0359] Phase modulation rate of the sensed signal.

[0360] In some embodiments, the sensing transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0361] In some embodiments, the sensing signals transmitted by at least two sensing transmitting devices are transmitted at the same time and / or at the same frequency.

[0362] In some embodiments, the parameters of the sensed signal further include at least one of the following:

[0363] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0364] The carrier frequency of the sensed signal;

[0365] The duration of the sensed signal;

[0366] Frequency modulation of the sensed signal.

[0367] In some embodiments, the sensing configuration information further includes at least one of the following:

[0368] Sensing resource configuration information;

[0369] Information from the sensing signal transmitting device;

[0370] Information from the sensing signal receiving device.

[0371] In some embodiments, the apparatus further includes:

[0372] The fourth receiving unit is used to receive the first information sent by the sensing receiving device;

[0373] The first information includes at least one of the following: the identifier of the sensing receiving device, the identifier of the sensing transmitting device, and the sensing measurement value corresponding to the sensing transmitting device.

[0374] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the method embodiment applied to the first functional network element, and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0375] It should be noted that the division of units in the embodiments of this disclosure is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0376] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0377] As shown in Figure 15, an embodiment of this disclosure also provides a communication device, which is a sensing and receiving device. The sensing and receiving device can be a base station or a terminal. Taking a terminal as an example, the communication device includes: a memory 1520, a transceiver 1500, and a processor 1510; wherein, the memory 1520 is used to store computer programs; the transceiver 1500 is used to receive and send data under the control of the processor 1510; and the processor 1510 is used to read the computer program in the memory and perform the following operations:

[0378] Receive sensing signals transmitted by at least two sensing and transmitting devices;

[0379] The sensing signal is measured according to the sensing configuration information to obtain the sensing measurement value;

[0380] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0381] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0382] Phase modulation rate of the sensed signal.

[0383] In some embodiments, the sensing transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0384] In some embodiments, the at least two sensing transmitting devices transmit sensing signals at the same time and / or at the same frequency.

[0385] In some embodiments, the processor is configured to read a computer program from the memory and perform the following operations:

[0386] The sensing signal is mixed with a first signal to obtain a first result, wherein the first signal is a signal generated by the sensing receiving device according to the sensing configuration information.

[0387] Perform a Fourier transform on the first result based on the number of time segments to obtain an information matrix including distance information and phase information;

[0388] Based on the phase modulation rate, the perceived measurement value corresponding to the phase modulation rate is obtained from the information matrix.

[0389] In some embodiments, the processor is configured to read a computer program from the memory and perform the following operations:

[0390] The phase point corresponding to the sensing and transmitting device is determined based on the phase modulation rate of each of the at least two sensing and transmitting devices.

[0391] Based on the phase point, the sensing measurement value corresponding to the phase modulation rate is determined from the information matrix.

[0392] In some embodiments, the processor is configured to read a computer program from the memory and perform the following operations:

[0393] Based on the sensing configuration information, a plurality of first signals are generated, and one of the plurality of first signals is selected to perform a mixing operation with the sensing signal;

[0394] or,

[0395] A first signal is generated based on the sensing configuration information corresponding to the target sensing transmitting device, and the first signal is mixed with the sensing signal. The target sensing transmitting device is one of the at least two sensing transmitting devices.

[0396] In some embodiments, the parameters of the sensed signal further include at least one of the following:

[0397] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0398] The carrier frequency of the sensed signal;

[0399] The duration of the sensed signal;

[0400] Frequency modulation of the sensed signal.

[0401] In some embodiments, the sensing configuration information further includes at least one of the following:

[0402] Sensing resource configuration information;

[0403] Information from the sensing signal transmitting device;

[0404] Information from the sensing signal receiving device.

[0405] In some embodiments, the processor is configured to read a computer program from the memory and perform the following operations:

[0406] Receive sensing configuration information sent by the first functional network element;

[0407] The first functional network element is deployed on the terminal side or the network side device side; or, the first functional network element is an independent device.

[0408] In some embodiments, the processor is configured to read a computer program from the memory and perform the following operations:

[0409] Send the first information to the first functional network element;

[0410] The first information includes at least one of the following: the identifier of the sensing receiving device, the identifier of the sensing transmitting device, and the sensing measurement value corresponding to the sensing transmitting device.

[0411] In Figure 15, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1510 and memory represented by memory 1520. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 1500 may be multiple components, including transmitters and transceivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, user interface 1530 may also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0412] Processor 1510 is responsible for managing the bus architecture and general processing, while memory 1520 can store data used by processor 1510 during operation.

[0413] In some embodiments, the processor 1510 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0414] The processor executes any of the methods described in the embodiments of this disclosure by invoking a computer program stored in memory, according to the obtained executable instructions. The processor and memory may also be physically separated.

[0415] It should be noted that the device provided in this embodiment can implement all the method steps implemented in the method embodiment applied to the sensing and receiving device, and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0416] As shown in Figure 16, an embodiment of this disclosure also provides a communication device, which is a sensing and transmitting device. The sensing and transmitting device can be a terminal or a base station. Taking a base station as an example, the communication device includes: a memory 1620, a transceiver 1600, and a processor 1610; wherein, the memory 1620 is used to store computer programs; the transceiver 1600 is used to receive and transmit data under the control of the processor 1610; and the processor 1610 is used to read the computer program in the memory and perform the following operations:

[0417] Generate sensing signals based on sensing configuration information;

[0418] Send the sensing signal;

[0419] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0420] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0421] Phase modulation rate of the sensed signal.

[0422] In some embodiments, the sensing transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0423] In some embodiments, the sensing signals transmitted by at least two sensing transmitting devices are transmitted at the same time and / or at the same frequency.

[0424] In some embodiments, the parameters of the sensed signal further include at least one of the following:

[0425] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0426] The carrier frequency of the sensed signal;

[0427] The duration of the sensed signal;

[0428] Frequency modulation of the sensed signal.

[0429] In some embodiments, the processor is configured to read a computer program from the memory and perform the following operations:

[0430] The duration of the sensing signal to be transmitted is segmented according to the number of time segments.

[0431] Within each time segment, phase modulation is performed according to the stated phase modulation rate to obtain a sensing signal.

[0432] In some embodiments, the sensing configuration information further includes at least one of the following:

[0433] Sensing resource configuration information;

[0434] Information from the sensing signal transmitting device;

[0435] Information from the sensing signal receiving device.

[0436] In some embodiments, the processor is configured to read a computer program from the memory and perform the following operations:

[0437] Receive sensing configuration information sent by the first functional network element;

[0438] The first functional network element is deployed on the terminal side or the network side device side; or, the first functional network element is an independent device.

[0439] In Figure 16, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1610 and memory represented by memory 1620. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 1600 may be multiple elements, including transmitters and transceivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor is responsible for managing the bus architecture and general processing. Processor 1610 is responsible for managing the bus architecture and general processing, and memory 1620 may store data used by processor 1610 during operation.

[0440] The processor 1610 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0441] It should be noted that the device provided in this embodiment can implement all the method steps implemented in the method embodiment applied to the sensing and transmitting device, and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0442] As shown in Figure 17, an embodiment of this disclosure also provides a communication device, which is a first functional network element. The first functional network element can be deployed in a terminal, a base station, or a core network, or it can be an independent device. Taking the deployment of the first functional network element in a base station as an example, the communication device includes: a memory 1720, a transceiver 1700, and a processor 1710; wherein, the memory 1720 is used to store computer programs; the transceiver 1700 is used to receive and send data under the control of the processor 1710; and the processor 1710 is used to read the computer program in the memory and perform the following operations:

[0443] Send sensing configuration information to the sensing transmitting device and the sensing receiving device;

[0444] The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following:

[0445] The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal.

[0446] Phase modulation rate of the sensed signal.

[0447] In some embodiments, the sensing transmitting device corresponds one-to-one with the phase modulation rate of the sensing signal.

[0448] In some embodiments, the at least two sensing transmitting devices transmit sensing signals at the same time and / or at the same frequency.

[0449] In some embodiments, the parameters of the sensed signal further include at least one of the following:

[0450] The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period.

[0451] The carrier frequency of the sensed signal;

[0452] The duration of the sensed signal;

[0453] Frequency modulation of the sensed signal.

[0454] In some embodiments, the sensing configuration information further includes at least one of the following:

[0455] Sensing resource configuration information;

[0456] Information from the sensing signal transmitting device;

[0457] Information from the sensing signal receiving device.

[0458] In some embodiments, the processor is configured to read a computer program from the memory and perform the following operations:

[0459] Receive the first information sent by the sensing and receiving device;

[0460] The first information includes at least one of the following: the identifier of the sensing receiving device, the identifier of the sensing transmitting device, and the sensing measurement value corresponding to the sensing transmitting device.

[0461] In Figure 17, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1710 and memory represented by memory 1720. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 1700 may be multiple elements, including transmitters and transceivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor is responsible for managing the bus architecture and general processing. Processor 1710 is responsible for managing the bus architecture and general processing, and memory 1720 may store data used by processor 1710 during operation.

[0462] The processor 1710 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0463] It should be noted that the device provided in this embodiment can implement all the method steps implemented in the method embodiment applied to the first functional network element and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0464] In addition, specific embodiments of this disclosure also provide a processor-readable storage medium storing a program for causing the processor to execute the steps of the aforementioned sensing method, achieving the same technical effect. To avoid repetition, this will not be elaborated further here. The readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical (MO) etc.), optical storage (e.g., compact discs (CDs), digital versatile discs (DVDs), Blu-ray discs (BDs), high-definition versatile discs (HVDs) etc.), and semiconductor storage (e.g., ROMs, erasable programmable read-only memory (EPROMs), electrically erasable programmable read-only memory (EEPROMs), non-volatile memory (NAND flash), solid-state drives (SSDs) etc.).

[0465] It should be noted that the technical solutions provided in this disclosure are applicable to a variety of systems. For example, applicable systems may include Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Long Term Evolution Advanced (LTE-A) systems, Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5G New Radio (NR) systems and their evolved communication systems, and 6G (sixth generation mobile communication technology) systems. These systems may include terminal equipment and network equipment. The systems may also include a core network component, such as the Evolved Packet Core (EPC) and the 5G Core Network (5GC).

[0466] The terminal devices involved in the embodiments of this disclosure can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in 5G or 6G systems, the terminal device may be called User Equipment (UE). Wireless terminal devices can be USB storage devices, other personal computer memory devices, and dongles. They can also communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples of such devices include Personal Communication Service (PCS) telephones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablets, and Machine-type Communication (MTC) terminal devices. Wireless terminal devices can also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile devices, remote stations, access points, remote terminals, access terminals, user terminals, user agents, user devices, and wireless access devices and routers / modems that meet the limitations of this definition, but are not limited to these in the embodiments of this disclosure.

[0467] The network-side equipment involved in this disclosure can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, the base station may also be called an access point, or a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network-side equipment can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network-side equipment can also coordinate the attribute management of the air interface. For example, the network-side equipment involved in this disclosure can be an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, or a Home evolved Node B (HeNB), relay node, femto, pico, network testing equipment, etc., and is not limited in this disclosure. In some network architectures, network-side devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, which may also be geographically separated.

[0468] Network devices and terminal devices can each use one or more antennas to perform Multiple-Input Multiple-Output (MIMO) transmission. MIMO transmission can be single-user MIMO or multi-user MIMO. Depending on the shape and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive-scale MIMO. It can also be diversity transmission, pre-coded transmission, or beamforming transmission, etc.

[0469] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, systems, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0470] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0471] These processor-executable instructions may also be stored in a processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more blocks of a block diagram.

[0472] These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of a block diagram.

[0473] Furthermore, it should be noted that in the apparatus and method of this disclosure, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of this disclosure. Moreover, the steps performing the above series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of this disclosure can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof, which can be achieved by those skilled in the art using their basic programming skills after reading the description of this disclosure.

[0474] It should be noted that the above division of modules is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software via processing element calls; they can be fully implemented in hardware; or some modules can be implemented by processing element calls to software, while others are implemented in hardware. For example, a module can be a separate processing element, or it can be integrated into a chip in the aforementioned device. Alternatively, it can be stored as program code in the memory of the aforementioned device, and its function can be called and executed by a processing element of the device. The implementation of other modules is similar. Moreover, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element mentioned here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0475] For example, each module, unit, subunit, or submodule can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together to implement a system-on-a-chip (SOC).

[0476] The terms “first,” “second,” etc., used in this disclosure and in the claims are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this disclosure described herein may be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Additionally, the use of “and / or” in the specification and claims indicates at least one of the connected objects, such as A and / or B and / or C, indicating seven possibilities: A alone, B alone, C alone, and both A and B, both B and C, both A and C, and A, B, and C. Similarly, the use of “at least one of A and B” in this specification and claims should be understood as “A alone, B alone, or both A and B.”

[0477] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A sensing method, comprising: The sensing receiving device receives sensing signals transmitted by at least two sensing transmitting devices; The sensing receiving device measures the sensing signal according to the sensing configuration information to obtain the sensing measurement value; The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following: The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal. Phase modulation rate of the sensed signal.

2. The method according to claim 1, wherein, The phase modulation rate of the sensing and transmitting device corresponds one-to-one with that of the sensing signal.

3. The method according to claim 1, wherein, The at least two sensing transmitting devices transmit sensing signals at the same time and / or at the same frequency.

4. The method according to claim 1 or 2, wherein, The step of measuring the sensing signal according to the sensing configuration information to obtain the sensing measurement value includes: The sensing signal is mixed with a first signal to obtain a first result, wherein the first signal is a signal generated by the sensing receiving device according to the sensing configuration information. Perform a Fourier transform on the first result based on the number of time segments to obtain an information matrix including distance information and phase information; Based on the phase modulation rate, the perceived measurement value corresponding to the phase modulation rate is obtained from the information matrix.

5. The method according to claim 4, wherein, The step of obtaining the sensing measurement value corresponding to the phase modulation rate from the information matrix based on the phase modulation rate includes: The phase point corresponding to the sensing and transmitting device is determined based on the phase modulation rate of each of the at least two sensing and transmitting devices. Based on the phase point, the sensing measurement value corresponding to the phase modulation rate is determined from the information matrix.

6. The method according to claim 4, wherein, The mixing operation between the sensed signal and the first signal includes: Based on the sensing configuration information, multiple first signals are generated, and one of the multiple first signals is selected to perform a mixing operation with the sensing signal. or, A first signal is generated based on the sensing configuration information corresponding to the target sensing transmitting device, and the first signal is mixed with the sensing signal. The target sensing transmitting device is one of the at least two sensing transmitting devices.

7. The method according to claim 1 or 6, wherein, The parameters of the sensed signal also include at least one of the following: The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period. The carrier frequency of the sensed signal; The duration of the sensed signal; Frequency modulation of the sensed signal.

8. The method according to claim 1, wherein, The perception configuration information also includes at least one of the following: Sensing resource configuration information; Information from the sensing signal transmitting device; Information from the sensing signal receiving device.

9. The method according to claim 1, wherein, The method further includes: Receive sensing configuration information sent by the first functional network element; The first functional network element is deployed on the terminal side or the network side device side; or, the first functional network element is an independent device.

10. The method according to claim 1 or 9, wherein, The method further includes: Send the first information to the first functional network element; The first information includes at least one of the following: the identifier of the sensing receiving device, the identifier of the sensing transmitting device, and the sensing measurement value corresponding to the sensing transmitting device.

11. A sensing method, comprising: The sensing and transmitting device generates sensing signals based on the sensing configuration information; The sensing and transmitting device transmits the sensing signal; The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following: The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal. Phase modulation rate of the sensed signal.

12. The method according to claim 11, wherein, The phase modulation rate of the sensing and transmitting device corresponds one-to-one with that of the sensing signal.

13. The method according to claim 11, wherein, At least two sensing and transmitting devices transmit sensing signals at the same time and / or at the same frequency.

14. The method according to claim 11, wherein, The parameters of the sensed signal also include at least one of the following: The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period. The carrier frequency of the sensed signal; The duration of the sensed signal; Frequency modulation of the sensed signal.

15. The method according to claim 11, wherein, The step of generating a sensing signal based on the sensing configuration information includes: The duration of the sensing signal to be transmitted is segmented according to the number of time segments. Within each time segment, phase modulation is performed according to the stated phase modulation rate to obtain a sensing signal.

16. The method according to claim 11, wherein, The perception configuration information also includes at least one of the following: Sensing resource configuration information; Information from the sensing signal transmitting device; Information from the sensing signal receiving device.

17. The method according to claim 11 or 16, wherein, The method further includes: Receive sensing configuration information sent by the first functional network element; The first functional network element is deployed on the terminal side or the network side device side; or, the first functional network element is an independent device.

18. A sensing method, comprising: The first functional network element sends sensing configuration information to the sensing transmitting device and the sensing receiving device; The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following: The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal. Phase modulation rate of the sensed signal.

19. The method according to claim 18, wherein, The phase modulation rate of the sensing and transmitting device corresponds one-to-one with that of the sensing signal.

20. The method according to claim 18, wherein, At least two sensing and transmitting devices transmit sensing signals at the same time and / or at the same frequency.

21. The method according to claim 18, wherein, The parameters of the sensed signal also include at least one of the following: The duty cycle of the sensing signal is used to indicate the duration during which the sensing signal is contained within a given time period. The carrier frequency of the sensed signal; The duration of the sensed signal; Frequency modulation of the sensed signal.

22. The method according to claim 18, wherein, The perception configuration information also includes at least one of the following: Sensing resource configuration information; Information from the sensing signal transmitting device; Information from the sensing signal receiving device.

23. The method according to claim 18, wherein, The method further includes: Receive the first information sent by the sensing and receiving device; The first information includes at least one of the following: the identifier of the sensing receiving device, the identifier of the sensing transmitting device, and the sensing measurement value corresponding to the sensing transmitting device.

24. A communication device, comprising: Memory, transceiver, processor: Memory, used to store computer programs; A transceiver, used to receive and send data under the control of the processor; A processor for reading a computer program from the memory and executing the method according to any one of claims 1 to 10.

25. A communication device, comprising: Memory, transceiver, processor: Memory, used to store computer programs; A transceiver, used to receive and send data under the control of the processor; A processor for reading a computer program from the memory and executing the method according to any one of claims 11 to 17.

26. A communication device, comprising: Memory, transceiver, processor: Memory, used to store computer programs; A transceiver, used to receive and send data under the control of the processor; A processor for reading a computer program from the memory and executing the method according to any one of claims 18 to 23.

27. A sensing device, comprising: The first receiving unit is used to receive sensing signals sent by at least two sensing transmitting devices; The first processing unit is used to measure the sensing signal according to the sensing configuration information to obtain the sensing measurement value; The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following: The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal. Phase modulation rate of the sensed signal.

28. A sensing device, comprising: The second processing unit is used to generate sensing signals based on sensing configuration information; The first transmitting unit is used to transmit the sensing signal; The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following: The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal. Phase modulation rate of the sensed signal.

29. A sensing device, comprising: The second transmitting unit is used to send sensing configuration information to the sensing transmitting device and the sensing receiving device. The sensing configuration information includes: parameters of the sensing signal; the parameters of the sensing signal include at least one of the following: The number of time segments indicates the number of time segments into which segmented phase modulation is applied to the sensed signal. Phase modulation rate of the sensed signal.

30. A processor-readable storage medium storing a program for causing the processor to perform the method of any one of claims 1 to 10, or the method of any one of claims 11 to 17, or the method of any one of claims 18 to 23.

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