Communication method, apparatus and system

Abstract

The present application provides a communication method, an apparatus and a system. The communication method can be applied to the field of communications and / or sensing. For example, the method comprises: a sending device generates a first chirp signal, the first chirp signal comprising N sub-chirp signals, N being a positive integer greater than or equal to 2, the N sub-chirp signals comprising a first sub-chirp signal and a second sub-chirp signal, at least one parameter of the first sub-chirp signal being different from that of the second sub-chirp signal, and the parameter comprising at least one of the following: an initial time domain resource location, an initial frequency domain resource location, an end time domain resource location, an end frequency domain resource location, a slope, and the number of continuous time domain units or the number of continuous frequency domain units; and the sending device sends first indication information to a receiving device, the first indication information being used for indicating the first chirp signal. Enabling the receiving device to receive and decode a corresponding signal waveform reduces signal interference, thus improving communication and / or sensing quality.

Description

Communication method, device and system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on January 31, 2024, with application number 202410144607.0 and application name “Communication Method, Device and System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and in particular to a communication method, device, and system. Background Art

[0003] Facing the future 6G wireless network, communication capabilities and perception capabilities will be integrated and coexist, evolving into the technical direction of "communication and perception integration", giving 6G networks the ability to perceive the physical world at all times and everywhere. It will fully meet the integration and interconnection of multi-dimensional senses, and effectively support the wide-area expansion of communication capabilities, opening up application space beyond traditional mobile communication network connections. In multiple industries and industrial organizations, the scope of synaesthesia integration has also been widely discussed, among which synaesthesia waveform is an important link that must be considered.

[0004] Currently, the peak sidelobe ratio (PSLR) of chirp signals modulated using orthogonal frequency division multiplexing (OFDM) is relatively high. The sidelobes of highly perceptible targets easily obscure the mainlobes of less perceptible targets. Furthermore, sidelobe leakage can lead to significant interoception interference and low perception accuracy. Improving communication and / or perception quality is an urgent issue. Summary of the Invention

[0005] The present application provides a communication method, device, and system that can improve communication and / or perception quality.

[0006] In a first aspect, a communication method is provided. The method may be executed by a sending device, or may be executed by a module in the sending device, such as a chip or circuit, which is not limited in this application. For ease of description, the following description is based on an example of execution by a sending device.

[0007] The method includes: generating a first chirp signal, the first chirp signal including N sub-chirp signals, N being a positive integer greater than or equal to 2, the N sub-chirp signals including a first sub-chirp signal and a second sub-chirp signal, the first sub-chirp signal and the second sub-chirp signal having at least one parameter different from each other, the parameter including at least one of the following: a starting time domain resource position, a starting frequency domain resource position, an ending time domain resource position, an ending frequency domain resource position, a slope, a continuous number of time domain units, or a continuous number of frequency domain units; and sending first indication information, the first indication information being used to indicate the first chirp signal.

[0008] The sub-chirp signal may be a modulation further performed on the chirp signal based on orthogonal frequency division multiplexing modulation.

[0009] The method adopts a sub-chirp signal modulation mode and indicates the pattern of the modulated chirp signal to a receiving device, enabling the receiving end to receive and decode the corresponding signal waveform, reducing signal interference and improving communication and / or perception quality.

[0010] In certain implementations, the first indication information is used to indicate a generator matrix of the first chirp signal, wherein the elements included in the rows of the generator matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generator matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals; or, the elements included in the rows of the generator matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generator matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals.

[0011] In this method, the chirp signal pattern is indicated by generating a matrix, which saves resource indication overhead. At the same time, the generated matrix is ​​unique, enabling the receiving end to uniquely and correctly decode the signal waveform.

[0012] In certain implementations, the first indication information is used to indicate the dimension of the generator matrix of the first chirp signal; the first indication information is also used to indicate at least one of the following: the position of a first element, the row of the generator matrix of the first chirp signal, or the column of the generator matrix of the first chirp signal, wherein the time domain resources and frequency domain resources corresponding to the position of the first element are occupied by the sub-chirp signal.

[0013] In this method, the physical meaning of the elements in the generator matrix is ​​defined to indicate the specific distribution pattern of the chirp signal, so that the receiving end can uniquely and correctly decode the signal waveform.

[0014] In some implementations, a generation matrix of the first chirp signal is different from a generation matrix of the second chirp signal, and the first chirp signal and the second chirp signal are received by different receiving devices.

[0015] In this method, different chirp signals are used for different receiving devices, which can further reduce signal interference between multiple receiving devices.

[0016] In some implementations, the first indication information is used to indicate parameters of the N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: time domain resources and / or frequency domain resources of each sub-chirp signal in the N sub-chirp signals, the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0017] In this approach, the parameters of the sub-chirp signal are directly indicated to the receiving device, enabling the receiving end to receive and decode the corresponding chirp signal pattern, thereby reducing signal interference and improving communication quality.

[0018] In some implementations, the first indication information is used to indicate a first index, the first index corresponds to a first parameter, and the first parameter includes at least one of the following: the value of N, the positive or negative slope of each sub-chirp signal in the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0019] In this method, the index corresponding to the parameter group of the sub-chirp signal is directly indicated to the receiving device, enabling the receiving end to receive and decode the corresponding chirp signal pattern, reducing signal interference, improving communication quality, and saving indication overhead.

[0020] In some implementations, the first index is a plurality of first indices, the plurality of first indices correspond one-to-one to a plurality of first parameters, and each of the plurality of first parameters is a parameter of a chirp signal.

[0021] That is, there is a correspondence between the plurality of first indexes and the plurality of first parameters. For example, the correspondence may be in the form of a table.

[0022] In this manner, an index is indicated to the receiving device, and the receiving device can determine the pattern of the chirp signal according to the index, thereby further reducing the indication overhead.

[0023] In some implementations, a pattern of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook.

[0024] In this method, communication modulation is performed using the pattern of a chirp signal, which can increase the information capacity of the communication.

[0025] In certain implementations, the second index is a plurality of second indexes, and the plurality of second indexes correspond one-to-one to a plurality of sequences or a plurality of codebooks.

[0026] That is, there is a correspondence between the plurality of second indexes and the plurality of communication information. For example, the correspondence may be in a table form.

[0027] In this manner, an index is indicated to the receiving device, and the receiving device can determine the communication information based on the index, thereby further reducing the indication overhead.

[0028] In some implementations, the first indication information is used to indicate a pattern of the first chirp signal.

[0029] In certain implementations, the first indication information is carried by at least one of the direct communication interface radio resource control configuration PC5 RRC-configuration signaling, resource pool preconfiguration signaling Resource pool preconfiguration, media access control element MAC CE, layer 1 signaling, and side link control information SCI, or the first indication information is carried by at least one of the radio resource control configuration RRC-configuration signaling or downlink control information DCI.

[0030] This method provides different bearers of the first indication information in different application scenarios, thereby improving the scenario compatibility of the first indication information.

[0031] In a second aspect, a communication method is provided. The method may be executed by a terminal device, or may be executed by a module in a receiving device, such as a chip or circuit, which is not limited in this application. For ease of description, the following description is based on an example of execution by a receiving device.

[0032] The method includes: receiving first indication information, where the first indication information indicates a first chirp signal, where the first chirp signal includes N sub-chirp signals, where N is a positive integer greater than or equal to 2, and the N sub-chirp signals include a first sub-chirp signal and a second sub-chirp signal. Parameters of the first sub-chirp signal and the second sub-chirp signal are different, and the parameters include at least one of the following: a starting time domain resource, a starting frequency domain resource, an ending time domain resource position, an ending frequency domain resource position, a slope, a continuous number of time domain units, or a continuous number of frequency domain units; and determining the first chirp signal according to the first indication information.

[0033] In certain implementations, the first indication information is used to indicate a generator matrix of the first chirp signal, wherein the elements included in the rows of the generator matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generator matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals; or, the elements included in the rows of the generator matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generator matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals.

[0034] In certain implementations, the first indication information is used to indicate the dimension of the generator matrix of the first chirp signal; the first indication information is also used to indicate at least one of the following: the position of a first element, the row of the generator matrix of the first chirp signal, or the column of the generator matrix of the first chirp signal, wherein the time domain resources and frequency domain resources corresponding to the position of the first element are occupied by the sub-chirp signal.

[0035] In some implementations, a generation matrix of the first chirp signal is different from a generation matrix of the second chirp signal, and the first chirp signal and the second chirp signal are received by different receiving devices.

[0036] In some implementations, the first indication information is used to indicate parameters of the N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: time domain resources and / or frequency domain resources of each sub-chirp signal in the N sub-chirp signals, the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0037] In some implementations, the first indication information is used to indicate a first index, the first index corresponds to a first parameter, and the first parameter includes at least one of the following: the value of N, the positive or negative slope of each sub-chirp signal in the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0038] In some implementations, the first index is a plurality of first indices, the plurality of first indices correspond one-to-one to a plurality of first parameters, and each of the plurality of first parameters is a parameter of a chirp signal.

[0039] In some implementations, a pattern of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook.

[0040] In certain implementations, the second index is a plurality of second indexes, and the plurality of second indexes correspond one-to-one to a plurality of sequences or a plurality of codebooks.

[0041] In some implementations, the first indication information is used to indicate a pattern of the first chirp signal.

[0042] In some implementations, the first indication information is carried in at least one of PC5 RRC-configuration, Resource pool preconfiguration, MAC CE, layer 1 signaling, and SCI, or the first indication information is carried in at least one of RRC-configuration signaling or DCI.

[0043] It should be understood that the second aspect is an implementation method on the network device side corresponding to the first aspect. The explanations, supplements and descriptions of the beneficial effects of the first aspect are also applicable to the second aspect and will not be repeated here.

[0044] According to a third aspect, a communication device is provided, comprising a transceiver unit and a processing unit, wherein the processing unit is configured to generate a first chirp signal, wherein the first chirp signal comprises N sub-chirp signals, where N is a positive integer greater than or equal to 2, and the N sub-chirp signals comprise a first sub-chirp signal and a second sub-chirp signal, and at least one parameter of the first sub-chirp signal and the second sub-chirp signal is different, and the parameter comprises at least one of the following: a starting time domain resource position, a starting frequency domain resource position, an ending time domain resource position, an ending frequency domain resource position, a slope, a continuous number of time domain units, or a continuous number of frequency domain units; and the transceiver unit is configured to send first indication information, wherein the first indication information is configured to indicate the first chirp signal.

[0045] In certain implementations, the first indication information is used to indicate a generator matrix of the first chirp signal, wherein the elements included in the rows of the generator matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generator matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals; or, the elements included in the rows of the generator matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generator matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals.

[0046] In certain implementations, the first indication information is used to indicate the dimension of the generator matrix of the first chirp signal; the first indication information is also used to indicate at least one of the following: the position of a first element, the row of the generator matrix of the first chirp signal, or the column of the generator matrix of the first chirp signal, wherein the time domain resources and frequency domain resources corresponding to the position of the first element are occupied by the sub-chirp signal.

[0047] In some implementations, a generation matrix of the first chirp signal is different from a generation matrix of the second chirp signal, and the first chirp signal and the second chirp signal are received by different receiving devices.

[0048] In some implementations, the first indication information is used to indicate parameters of the N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: time domain resources and / or frequency domain resources of each sub-chirp signal in the N sub-chirp signals, the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0049] In some implementations, the first indication information is used to indicate a first index, the first index corresponds to a first parameter, and the first parameter includes at least one of the following: the value of N, the positive or negative slope of each sub-chirp signal in the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0050] In some implementations, the first index is a plurality of first indices, the plurality of first indices correspond one-to-one to a plurality of first parameters, and each of the plurality of first parameters is a parameter of a chirp signal.

[0051] In some implementations, a pattern of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook.

[0052] In certain implementations, the second index is a plurality of second indexes, and the plurality of second indexes correspond one-to-one to a plurality of sequences or a plurality of codebooks.

[0053] In some implementations, the first indication information is used to indicate a pattern of the first chirp signal.

[0054] In some implementations, the first indication information is carried in at least one of PC5 RRC-configuration, Resource pool preconfiguration, MAC CE, layer 1 signaling, and SCI, or the first indication information is carried in at least one of RRC-configuration signaling or DCI.

[0055] In a fourth aspect, a communication device is provided, comprising a transceiver unit and a processing unit, the transceiver unit being used to receive first indication information, the first indication information indicating a first chirp signal, the first chirp signal including N sub-chirp signals, N being a positive integer greater than or equal to 2, the N sub-chirp signals including a first sub-chirp signal and a second sub-chirp signal, the parameters of the first sub-chirp signal and the second sub-chirp signal being different, the parameters including at least one of the following: starting time domain resources, starting frequency domain resources, ending time domain resource position, ending frequency domain resource position, slope, number of continuous time domain units or number of continuous frequency domain units; the processing unit being used to determine the first chirp signal based on the first indication information.

[0056] In certain implementations, the first indication information is used to indicate a generator matrix of the first chirp signal, wherein the elements included in the rows of the generator matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generator matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals; or, the elements included in the rows of the generator matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generator matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals.

[0057] In certain implementations, the first indication information is used to indicate the dimension of the generator matrix of the first chirp signal; the first indication information is also used to indicate at least one of the following: the position of a first element, the row of the generator matrix of the first chirp signal, or the column of the generator matrix of the first chirp signal, wherein the time domain resources and frequency domain resources corresponding to the position of the first element are occupied by the sub-chirp signal.

[0058] In some implementations, a generation matrix of the first chirp signal is different from a generation matrix of the second chirp signal, and the first chirp signal and the second chirp signal are received by different receiving devices.

[0059] In some implementations, the first indication information is used to indicate parameters of the N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: time domain resources and / or frequency domain resources of each sub-chirp signal in the N sub-chirp signals, the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0060] In some implementations, the first indication information is used to indicate a first index, the first index corresponds to a first parameter, and the first parameter includes at least one of the following: the value of N, the positive or negative slope of each sub-chirp signal in the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0061] In some implementations, the first index is a plurality of first indices, the plurality of first indices correspond one-to-one to a plurality of first parameters, and each of the plurality of first parameters is a parameter of a chirp signal.

[0062] In some implementations, a pattern of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook.

[0063] In certain implementations, the second index is a plurality of second indexes, and the plurality of second indexes correspond one-to-one to a plurality of sequences or a plurality of codebooks.

[0064] In some implementations, the first indication information is used to indicate a pattern of the first chirp signal.

[0065] In some implementations, the first indication information is carried in at least one of PC5 RRC-configuration, Resource pool preconfiguration, MAC CE, layer 1 signaling, and SCI, or the first indication information is carried in at least one of RRC-configuration signaling or DCI.

[0066] It should be understood that the third aspect and the fourth aspect are implementation methods on the device side corresponding to the first aspect and the second aspect. The explanations, supplements and descriptions of the beneficial effects of the first aspect and the second aspect are also applicable to the third aspect and the fourth aspect and will not be repeated here.

[0067] In a fifth aspect, the present application provides a communication device, comprising an interface circuit and a processor, wherein the interface circuit is used to implement the function of the transceiver unit in the third aspect, and the processor is used to implement the function of the processing unit in the third aspect.

[0068] In a sixth aspect, the present application provides a communication device, comprising an interface circuit and a processor, wherein the interface circuit is used to implement the function of the transceiver unit in the fourth aspect, and the processor is used to implement the function of the processing unit in the fourth aspect.

[0069] In the seventh aspect, the present application provides a computer-readable medium storing a program code for execution on a terminal device, the program code comprising instructions for executing the method of the first aspect, or any possible manner in the first aspect, or all possible manners in the first aspect.

[0070] In an eighth aspect, an embodiment of the present application provides a computer-readable medium storing a program code for execution by a network device, the program code including instructions for executing the method of the second aspect, or the third aspect, or any possible manner in the second aspect, or any possible manner in the third aspect, or all possible manners in the second aspect, or all possible manners in the third aspect.

[0071] In the ninth aspect, a computer program product storing computer-readable instructions is provided, which, when the computer-readable instructions are executed on a computer, enables the computer to execute the method of the first aspect, or any possible method of the first aspect, or all possible methods of the first aspect.

[0072] In the tenth aspect, a computer program product storing computer-readable instructions is provided, which, when the computer-readable instructions are run on a computer, enables the computer to execute the method of the above-mentioned second aspect, or any possible method of the second aspect, or all possible methods of the second aspect.

[0073] In the eleventh aspect, a communication system is provided, which includes a device having functions of implementing the above-mentioned first aspect, or any possible manner in the first aspect, or all possible manners in the first aspect, the second aspect, or any possible manner in the second aspect, or all possible manners in the second aspect, and various possible designed functions.

[0074] In the twelfth aspect, a processor is provided, which is coupled to a memory and is used to execute the method of the above-mentioned first aspect, or any possible method of the first aspect, or all possible methods of the first aspect.

[0075] In a thirteenth aspect, a processor is provided, coupled to a memory, for executing the method of the second aspect, or any possible manner of the second aspect, or all possible manners of the second aspect.

[0076] In a fourteenth aspect, a chip system is provided, comprising a processor and a memory configured to execute computer programs or instructions stored in the memory, so that the chip system implements the method of any of the aforementioned first or second aspects, as well as any possible implementation of either aspect. The chip system may be composed of a chip alone, or may include a chip and other discrete components.

[0077] In a fifteenth aspect, a communication method is provided, the method comprising: a sending device generating a first chirp signal, the first chirp signal comprising N sub-chirp signals, N being a positive integer greater than or equal to 2, the N sub-chirp signals comprising a first sub-chirp signal and a second sub-chirp signal, at least one parameter of the first sub-chirp signal and the second sub-chirp signal being different, the parameter comprising at least one of the following: a starting time domain resource position, a starting frequency domain resource position, a slope, a continuous number of time domain units, or a continuous number of frequency domain units; the sending device sending first indication information to a receiving device, the first indication information being used to indicate the first chirp signal, and correspondingly, the receiving device receiving the first indication information; the receiving device determining the first chirp signal based on the first indication information. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] FIG1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application.

[0079] FIG2 is a schematic diagram of the time-frequency domain relationship of an OFDM-Chirp signal.

[0080] FIG3 is a schematic diagram of several Chirp signal patterns.

[0081] FIG4 is a schematic diagram of an application scenario of the present application.

[0082] FIG5 is a schematic diagram of a communication method provided in an embodiment of the present application.

[0083] FIG6 is a schematic diagram of a chirp signal provided in an embodiment of the present application.

[0084] FIG7 is a schematic diagram of the relationship between a chirp signal and a generator matrix provided in an embodiment of the present application.

[0085] FIG8 is a schematic diagram of another chirp signal provided in an embodiment of the present application.

[0086] FIG9 is a schematic diagram of another chirp signal provided in an embodiment of the present application.

[0087] FIG10 is a schematic diagram showing the correspondence between a chirp signal and a communication sequence provided in an embodiment of the present application.

[0088] FIG11 is a schematic block diagram of a communication device.

[0089] FIG12 is a schematic block diagram of yet another communication device.

[0090] FIG13 is a schematic block diagram of yet another communication device. DETAILED DESCRIPTION

[0091] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0092] Figure 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in Figure 1 , the communication system includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The radio access network 100 may include at least one radio access network device (such as 110a and 110b in Figure 1 ) and at least one terminal (such as 120a-120j in Figure 1 ). The terminal is wirelessly connected to the radio access network device, and the radio access network device is wirelessly or wiredly connected to the core network. The core network device and the radio access network device may be independent, distinct physical devices, or the core network device's functions and the radio access network device's logical functions may be integrated into the same physical device, or a single physical device may integrate some of the core network device's functions and some of the radio access network device's functions. Terminals and radio access network devices may be interconnected via wired or wireless connections. Figure 1 is merely a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in Figure 1 .

[0093] A radio access network device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a fifth-generation (5G) mobile communication system, a next-generation base station in a sixth-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a Wi-Fi system. It can also be a module or unit that performs some of the functions of a base station, such as a centralized unit (CU) or a distributed unit (DU). The CU performs the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), as well as the service data adaptation protocol (SDAP). The DU performs the functions of the base station's radio link control layer and medium access control (MAC) layer, as well as some or all of the physical layer. For detailed descriptions of each of these protocol layers, please refer to the relevant technical specifications of the Third Generation Partnership Project (3GPP). The wireless access network device can be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), a relay node, a donor node, etc. The embodiments of this application do not limit the specific technology and device form used by the wireless access network device. For ease of description, the following description uses a base station as an example of a wireless access network device.

[0094] A terminal device can be a device that provides voice / data to a user, such as a handheld device or vehicle-mounted device with wireless connection capabilities. A terminal device may include user equipment, sometimes also referred to as a terminal, access station, UE station, remote station, wireless communication device, or user equipment.

[0095] For example, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a whole vehicle, a wireless communication module in the whole vehicle, a telematics box (T-Box), a road side unit (RSU), a wireless terminal in unmanned driving, a wireless terminal device in the Internet of Things (IoT), a wireless terminal device in telemedicine, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc., and the embodiments of the present application are not limited to this.

[0096] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but can also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include devices that are fully functional, large in size, and can achieve full or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for measuring vital signs.

[0097] Terminal devices can also be V2X devices, such as smart cars (or intelligent cars), digital cars, unmanned cars (or driverless cars, or pilotless cars, or automobiles), self-driving cars (or autonomous cars), pure electric vehicles (or battery EVs), hybrid electric vehicles (HEVs), range-extended electric vehicles (REEVs), plug-in hybrid electric vehicles (PHEVs), new energy vehicles (new energy vehicles), and roadside units (RSUs). Terminal devices can also be devices used in device-to-device (D2D) communications, such as electricity meters and water meters.

[0098] In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.

[0099] The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in a vehicle), can be considered as vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs). The terminal device of the present application can also be an on-board module, on-board module, on-board component, on-board chip, or on-board unit built into a vehicle as one or more components or units, and the vehicle can implement the method of the present application through the built-in on-board module, on-board module, on-board component, on-board chip, or on-board unit.

[0100] Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0101] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. To terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station. However, to base station 110a, 120i is a terminal, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur via a base station-to-base station interface protocol. In this case, 120i is also a base station relative to 110a. Therefore, base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with base station functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal functionality.

[0102] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized spectrum, or both; communication can be carried out through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0103] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem that includes the base station functions. The control subsystem that includes the base station functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or modem) in the terminal, or by a device that includes the terminal functions.

[0104] The technical solutions provided in the embodiments of this application can be applied to wireless communications between communication devices. Wireless communications between communication devices may include: wireless communications between network devices and terminals, wireless communications between network devices, and wireless communications between terminal devices. In the embodiments of this application, the term "wireless communications" may also be referred to as "communication," which may also be described as "data transmission," "information transmission," or "transmission."

[0105] It is understandable that in the embodiments of the present application, the names of the various signaling are only used as examples, and may have different names in different systems and different scenarios, and the embodiments of the present application do not limit this.

[0106] In order to facilitate understanding of the solutions of the embodiments of the present application, the relevant concepts are explained.

[0107] 1. Chirp signal

[0108] Chirp signals are a typical non-stationary signal with extensive applications in communications, sonar, radar, and other fields. Chirp signals are encoded so that the carrier frequency of the pulse increases or decreases linearly within the pulse duration domain, thus forming a signal with a unique time-frequency characteristic.

[0109] Chirp signals offer many advantages in communications, such as strong anti-interference capabilities, long transmission distances, and the ability to penetrate complex environments. Furthermore, chirp signals are widely used in radar, sonar, navigation, and other fields. For example, in fiber-optic communications, the phenomenon of instantaneous shifts in the central wavelength of a single pulse due to inherent laser diode instability is called "chirp." This effect can increase the transmission distance and speed of fiber-optic communications.

[0110] The chirp signal in this application may also be referred to by other names, such as time-frequency offset signal, pulse signal, etc. However, any signal that meets the characteristics of the chirp signal described above should be within the scope of protection of this application. For example, a chirp signal can also be called a linear frequency modulation (LMF) signal.

[0111] An LFM rectangular pulse signal can be expressed as:

[0112] Where f0 is the center frequency, u is the FM slope, B is the FM bandwidth, and T is the pulse width.

[0113] The LFM signal is a pulse compression signal widely used in radar. It achieves both long range and high range resolution through pulse compression technology. It has low sensitivity to Doppler shift, good detection performance, and strong robustness and anti-interference capabilities. However, the LMF signal has a low transmission rate.

[0114] One type of chirp signal is an OFDM-chirp signal. The basic principle is to modulate the chirp signal onto different subcarrier groups. Since the subcarriers of an OFDM signal are orthogonal, the signals on different subcarrier groups naturally also meet the orthogonality. The OFDM-Chirp signal model is:

[0115] Where t is the time sample of the signal, u(t) is the rectangular window function, fn and kn are the starting frequency and slope of the nth subcarrier of the signal, respectively.

[0116] The time-frequency relationship of the OFDM-Chirp signal is shown in Figure 2. Δf is the frequency domain occupied bandwidth of the sub-chirp signal, or the occupied frequency domain resources.

[0117] Due to the multi-carrier nature of OFDM-Chirp systems, the transmission rate is high, which can solve the problem of low LMF signal transmission rate. However, compared with traditional OFDM signals, each subcarrier occupies more bandwidth, resulting in lower spectrum utilization.

[0118] The basic Chirp signal pattern or organization can be divided into several types as shown in Figure 3, including upper Chirp (slope k>0), lower Chirp (k<0), and mixed Chirp. Figure 3 (a) is an upper Chirp, in which all sub-Chirps (such as one of the oblique lines) have the same slope and are greater than 0. Figure 3 (b) is a lower Chirp, in which all sub-Chirps (such as one of the oblique lines) have the same slope and are less than 0. Figure 3 (c) is a mixed Chirp, in which some sub-Chirps (such as one of the oblique lines) have the same slope and are less than 0, and some sub-Chirps (such as one of the oblique lines) have the same slope and are greater than 0.

[0119] 2. Time domain unit

[0120] A time domain unit may be one or more symbols, one or more time slots, one or more mini-slots, one or more subframes, one or more frames, etc. One or more time domain units may be continuous or discrete in time. It should be understood that time domain units are logically continuous within a resource pool. In this application, the definition of symbol, mini-slot, time slot, subframe, and frame can be understood by reference to the 3GPP protocol.

[0121] 3. Frequency domain unit

[0122] A frequency domain unit can be a resource element (RE), several REs, a resource block (RB), several RBs, a subchannel, or several subchannels. The subchannel size, which indicates the number of RBs (continuous or interlaced) in the frequency domain that a subchannel comprises, can be an integer such as 10, 12, 15, 20, 25, 50, 75, or 100.

[0123] Currently, the PSLR of OFDM- / Chirp-waveforms is relatively high. The sidelobes of strong targets easily obscure the mainlobes of weak targets. Considering sidelobe leakage, the strong synaesthesia interference leads to low signal SNR and low perception accuracy. At the same time, the communication bit information is not superimposed on the chirp, which limits the communication capacity.

[0124] In view of this, the present application proposes a communication method that can improve perception accuracy.

[0125] The communication method of this application can be applied in systems such as V2X and D2D, where users directly communicate with each other, and is suitable for communication scenarios with and without network coverage. As shown in Figure 4, the user terminal can be within or outside the coverage range of the network device.

[0126] This communication method can be applicable between a network device and a terminal device, between a network device and a network device, or between a terminal device and a terminal device, and this application does not make any specific limitations. For example, when the communication method is applicable to a perception scenario, the perception mode can be that network device A sends a perception signal and network device A receives a perception signal; or that network device A sends a perception signal and network device B receives a perception signal; or that network device A sends a perception signal and the terminal device receives the perception signal; or that the terminal device sends a perception signal and network device A receives the perception signal. That is, the communication method provided in this application can be applicable to communication scenarios, perception scenarios, and scenarios of synaesthesia. In short, the communication method of this application can be applicable to scenarios where chirp signals are applicable.

[0127] The following describes the communication method using a transmitting device and a receiving device as examples of the execution subjects of the communication method. As shown in FIG5 , the method includes the following steps:

[0128] S510: A sending device generates a first chirp signal.

[0129] The first chirp signal includes N sub-chirp signals, where N is a positive integer greater than or equal to 2. In other words, the N sub-chirp signals constitute or compose the first chirp signal. The N sub-chirp signals include a first sub-chirp signal and a second sub-chirp signal, and the first sub-chirp signal and the second sub-chirp signal have different parameters. The sub-chirp signal parameters include at least one of the following: a starting time domain resource position, a starting frequency domain resource position, a slope, a number of continuous time domain units, or a number of continuous frequency domain units.

[0130] The starting time domain resource may be the time domain resource that is closest to the front in the time domain among the time domain resources occupied by the sub-chirp signal. In other words, the starting time domain resource may be the time domain resource with the smallest index among the time domain resources occupied by the sub-chirp signal. The starting time domain resource may be a time domain unit.

[0131] The starting frequency domain resource may be the frequency domain resource that is located at the bottom or top of the frequency domain resources occupied by the sub-chirp signal. In other words, the starting frequency domain resource may be the frequency domain resource with the smallest or largest index among the frequency domain resources occupied by the sub-chirp signal. The starting frequency domain resource may be a frequency domain unit.

[0132] The slope is the slope of the line segment of the sub-chirp signal in the pattern diagram. As shown in Figure 6, in the diagram of the chirp signal pattern, the slope of the line segment corresponding to each of the N sub-chirp signals included in the first chirp signal may be the same or different. For example, from the time domain unit in Figure 6, the frequency of the sub-chirp signal can be 1 or -1.

[0133] The number of continuous time domain units is the number of time domain units occupied by the sub-chirp signal. For example, in Figure 6, each sub-chirp signal occupies the same number of time domain units, namely one time domain unit. However, the present application is not limited thereto. For example, the first chirp signal may include sub-chirp signal A and sub-chirp signal B, where sub-chirp signal A occupies 3 time domain units and sub-chirp signal B occupies 2 time domain units.

[0134] The number of continuous frequency domain units is the number of frequency domain units occupied by the sub-chirp signal. For example, in Figure 6, each sub-chirp signal occupies the same number of frequency domain units, namely one frequency domain unit. However, the present application is not limited thereto. For example, the first chirp signal may include sub-chirp signal A and sub-chirp signal B, where sub-chirp signal A occupies two frequency domain units and sub-chirp signal B occupies one frequency domain unit.

[0135] It should be understood that the above parameters may also include an ending time domain resource position and an ending frequency domain resource position. For example, taking the first sub-chirp signal as an example, the resources occupied by the first sub-chirp signal in the time domain correspond to a starting time domain resource position and an ending time domain resource position. Both the starting time domain resource position and the ending time domain resource position can be used to determine the resources occupied by the first sub-chirp signal in the time domain. The ending frequency domain resource position and the ending time domain resource position are similar and are not further described.

[0136] Furthermore, the parameters of the sub-chirp signals in this application are not limited to the above examples. For example, the time domain resource location occupied by the sub-chirp signal can also be determined by a predefined position. For example, the predefined position is the middle position of the time domain resource occupied by the first sub-chirp signal. In short, any parameters that can be used to determine the time domain resources and / or frequency domain resources occupied by a sub-chirp signal are applicable to this application and are within the scope of protection of this application.

[0137] Other parameters that can be used to determine the time-frequency resource position of the sub-chirp signal should be within the scope of protection of this application, such as the reference position and the relative distance between the time domain resources and / or frequency domain resources occupied by the sub-chirp signal and the reference position.

[0138] It should also be understood that the difference in parameters between the first sub-chirp signal and the second sub-chirp signal may be all of the aforementioned parameters, or some of the parameters, for example, a certain parameter between the first sub-chirp signal and the second sub-chirp signal. The aforementioned parameters may include at least one of a starting time domain resource position, a starting frequency domain resource position, an ending time domain resource position, an ending frequency domain resource position, a slope, a continuous number of time domain units, or a continuous number of frequency domain units.

[0139] The chirp signal in the communication method of the present application may be a chirp signal obtained by further modulating the OFDM-Chirp.

[0140] S520: The sending device sends first indication information to the receiving device, and correspondingly, the receiving device receives the first indication information.

[0141] The first indication information is used to indicate the first chirp signal. For example, the first indication information is used to indicate the time domain resources and / or frequency domain resources of the first chirp signal. In another example, the first indication information is used to indicate the pattern of the first chirp signal. The pattern can be a style, pattern, shape, etc.

[0142] Among them, the first indication information can determine the pattern of the first chirp signal by indicating the matrix for generating the first chirp signal or indicating the aforementioned parameters, such as the starting time domain resource position, the starting frequency domain resource position, the ending time domain resource position, the ending frequency domain resource position, the slope, the number of continuous time domain units or the number of continuous frequency domain units (that is, the relevant parameters of the first sub-chirp signal and the second sub-chirp signal in S510).

[0143] The following describes the implementation of the indication method of the first indication information.

[0144] Possible implementation 1: The first indication information is used to indicate a generation matrix of the first chirp signal.

[0145] The dimension of the chirp signal generator matrix is ​​related to the number of time-domain resource units and / or frequency-domain resource units occupied by the chirp signal. For example, if the dimension of generator matrix A is 7*7, i.e., the number of elements in both the rows and columns of the generator matrix is ​​7, then the chirp signal A corresponding to the generator matrix A occupies 7 time-domain resource units in the time domain and 7 frequency-domain resource units in the frequency domain.

[0146] The elements included in the rows of the chirp signal generator matrix respectively represent the time domain resource positions of the N sub-chirp signals included in the chirp signal, and the elements included in the columns of the chirp signal generator matrix respectively represent the frequency domain resource positions of the N sub-chirp signals. As shown in Figure 7, a schematic diagram of a chirp signal generator matrix is ​​shown. The rows and columns of the matrix each include eight elements, that is, the dimension of the matrix is ​​8*8. The values ​​of the elements contained in the matrix are 0 or 1. 1 (i.e., the first element) indicates that the time domain resource and frequency domain resource corresponding to the position of the element are occupied by the sub-chirp signal. 0 indicates that the time domain resource and frequency domain resource corresponding to the position of the element are not occupied by the sub-chirp signal.

[0147] It should be understood that the correspondence between the values ​​of the matrix elements and the meanings represented by the values ​​can be preset or configured, and this application does not limit this. For example, 1 indicates that the time domain resources and frequency domain resources corresponding to the position of the element are not occupied by the sub-chirp signal. 0 indicates that the time domain resources and frequency domain resources corresponding to the position of the element are occupied by the sub-chirp signal. The meanings represented by the rows and columns of the matrix can also be predefined or configured. For example, the elements included in the rows of the generation matrix of the first chirp signal respectively represent the frequency domain resource positions of N sub-chirp signals, and the elements included in the columns of the generation matrix of the first chirp signal respectively represent the time domain resource positions of N sub-chirp signals.

[0148] The first indication information indicates the generator matrix of the first chirp signal, including the dimension of the generator matrix of the first chirp signal. The first indication information also indicates at least one of the following: the position of the first element, the row of the generator matrix of the first chirp signal, or the column of the generator matrix of the first chirp signal. Specifically, reference may be made to FIG7 . The first indication information indicates that the dimension of the generator matrix is ​​8*8, and the first indication information may also indicate the elements in each row and column of FIG7 . The first element is 1, and the first indication information may also indicate the position of the first element, or in other words, the first indication information may also indicate the position at which the first element is located. For example, the chirp signal pattern in FIG7 (right figure) is generated based on FIG3 (c), for example, the chirp signal pattern is generated based on FIG3 (c). That is, R in FIG7 is the generator matrix, and Rc1 indicates that the first chirp signal X is generated based on FIG3 (c).

[0149] It should be understood that the generator matrix in FIG7 is only an example. Other transformations of the matrix should also be within the scope of protection of this application. Alternatively, the generator matrix in FIG7 is only a part and is included in a larger matrix, for example:

[0150] This matrix has dimensions of 9*9, with all elements in the ninth row and ninth column set to zero. The chirp signal corresponding to this matrix is ​​the same as the chirp signal corresponding to the matrix in Figure 7 . Compared to the matrix in Figure 7 , this matrix has one more row and one more column. Other matrices, such as those with one more row than the matrix in Figure 7 , where all elements in this extra row are zero, can also represent the same sub-chirp signal as the matrix in Figure 7 .

[0151] In summary, the present application does not limit the form of the matrix, and any matrix that can indicate each sub-chirp signal, or that can indicate the first chirp signal, should be within the scope of protection of the present application.

[0152] The receiving device can determine the number of sub-chirp signals, the positions of the sub-chirp signals, and the time domain resources and frequency domain resources occupied by the sub-chirp signals based on the generator matrix. The receiving device can further determine the first chirp signal based on the N sub-chirp signals.

[0153] It should be understood that different chirp signals have different generator matrices. For example, the first chirp signal corresponds to generator matrix 1, and the second chirp signal corresponds to generator matrix 2. Matrix 1 and matrix 2 are different. Specifically, this difference may be in the number of first elements, the position of the first elements, or the dimensions of the generator matrices, etc.

[0154] Different chirp signals can be sent from a transmitting device to different receiving devices. For example, the transmitting device sends a first chirp signal to receiving device 1, which then receives the first chirp signal. The transmitting device sends a second chirp signal to receiving device 2, which then receives the second chirp signal. Generating different chirp signals using different generator matrices and sending them to different receiving devices can avoid signal interference between multiple receiving devices, improving communication quality or perceived quality.

[0155] Possible implementation 2: The first indication information is used to indicate parameters of the first chirp signal.

[0156] Specifically, the first indication information is used to indicate parameters of the sub-chirp signals included in the first chirp signal. For example, the first chirp signal includes N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: time domain resources and / or frequency domain resources of each sub-chirp signal in the N sub-chirp signals, a slope of each sub-chirp signal in the N sub-chirp signals, a continuous number of time domain units of each sub-chirp signal in the N sub-chirp signals, a continuous number of frequency domain units of each sub-chirp signal in the N sub-chirp signals, a starting time domain resource position and / or an ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and a starting frequency domain resource position and / or an ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0157] Optionally, the frequency domain resource position of each of the above-mentioned sub-chirp signals may also be indicated by a predefined frequency domain resource position, and the time domain resource position of each of the above-mentioned sub-chirp signals may also be indicated by a predefined time domain resource position, such as the middle position of the time domain resources occupied by each sub-chirp signal and / or the middle position of the frequency domain resources occupied by each sub-chirp signal. Alternatively, other parameters that can be used to determine the time-frequency resource position of the sub-chirp signal should be within the scope of protection of this application, such as parameters such as a reference position and the relative distance between the time domain resources and / or frequency domain resources occupied by the sub-chirp signal and the reference position.

[0158] In one possible indication manner, the first indication information directly indicates the specific value of the above parameter. For example, the first indication information indicates that the first chirp signal includes three sub-chirp signals. Assume that the three sub-chirp signals are sub-chirp signal A, sub-chirp signal B, and sub-chirp signal C. The first indication information may indicate that the index of the starting time domain resource of sub-chirp signal A is 1, the number of continuous time domain units of sub-chirp signal A is 3, the index of the starting frequency domain resource of sub-chirp signal A is 2, the number of continuous frequency domain units of sub-chirp signal A is 2, and the slope of sub-chirp signal A is 1; the index of the starting time domain resource of sub-chirp signal B is 4, the number of continuous time domain units of sub-chirp signal B is 2, the index of the starting frequency domain resource of sub-chirp signal B is 3, the number of continuous frequency domain units of sub-chirp signal B is 2, and the slope of sub-chirp signal B is -1; the index of the starting time domain resource of sub-chirp signal C is 8, the number of continuous time domain units of sub-chirp signal C is 1, the index of the starting frequency domain resource of sub-chirp signal C is 1, the number of continuous frequency domain units of sub-chirp signal C is 1, and the slope of sub-chirp signal A is -1.

[0159] The receiving device may determine the pattern of the first chirp signal according to the first indication information as shown in FIG8 .

[0160] Another possible indication method is that the first indication information indirectly indicates the specific numerical value of the above-mentioned parameter. For example, the first indication information indicates a first index, the first index corresponds to a first parameter, and the first parameter includes at least one of the parameters of the above-mentioned sub-chirp signal. Specifically, the value of N, the positive or negative slope of each sub-chirp signal in the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

[0161] The slope of each sub-chirp signal is positive, with 1 representing a positive slope and 0 representing a negative slope. The slope distribution ranges of each sub-chirp signal are 0, 1, 2, and 3, respectively, representing a slope within ±22.5°, ±(0-45°), ±(45°-67.5°), and ±(67.5°-90°).

[0162] It should be understood that the first index can be multiple first indices, and the multiple first indices correspond one-to-one to multiple first parameters, and each first parameter in the multiple first parameters is a parameter of the chirp signal. In other words, the patterns of multiple chirp signals can constitute a set, and in the set, different patterns correspond to different indexes. The set is only an example of a relationship between multiple patterns, and the present application is not limited to this. For example, the relationship between multiple patterns and indexes and specific parameters can be presented in the form of a table. As follows:

[0163] It should be understood that the above table uses subcarriers as an example of frequency domain units. It should also be understood that the above table is only an example. In a specific implementation, the parameters and values ​​in the table can be preset or adjusted. The above table may also be implemented in part or in its entirety.

[0164] When the pattern index is 2, the corresponding sub-chirp signal may be in the form of FIG9 .

[0165] The specific sub-chirp signal pattern used can be flexibly determined based on the actual synaesthesia scenario. For example, when the signal-to-interference plus noise ratio (SINR) is minimized, a chirp signal with a pattern index of 1 can be used. When communication capacity is maximized, a chirp signal with a pattern index of 2 can be used. The transmitting device can flexibly and dynamically indicate changes in the pattern to achieve optimal system performance.

[0166] Optionally, the chirp signal may also correspond to communication information. For example, communication bits are modulated simultaneously on the sub-chirp signal to improve communication capacity. Specifically, the pattern of the first chirp signal corresponds to the second index, and the second index corresponds to the first sequence or the first codebook. The first sequence is a communication sequence, and the first codebook is a communication codebook. The second index may be a plurality of second indexes, and the plurality of second indexes correspond one-to-one to a plurality of sequences or a plurality of codebooks. That is, different sub-chirp signals (or combinations thereof) correspond to different communication codebooks or sequence indices. The sequence is a communication modulation sequence or a communication signal.

[0167] For example, as shown in Figure 10, a communication sequence is modulated on each sub-chirp signal (the slope, duration, and number of occupied subcarriers may be different), and this sequence is Ci in the table. Different sub-chirp signals (or their combinations) can carry different communication information sequences and contents. The chirp signal in S1 in Figure 10 includes a sub-chirp signal with a slope of P1, that is, the slopes of the sub-chirp signals are {-1, 1, 1, -1, -1, -1, 1, 1} in sequence. The corresponding information sequence it carries is Ci, such as C1 is {7 5 2 3 6 1 0 4}. Figure 10 is just an example. For example, the sequence Ci can also be expressed as a 0 1 sequence, corresponding to a communication signal. Among them, different chirp signals S1, S2, S3, and S4 correspond to different sequences respectively.

[0168] When the communication scenario or the synaesthesia scenario is a sidelink scenario, the first indication information may be carried in at least one of direct communication interface radio resource control configuration (PC5 radio resource control configuration, PC5 RRC-configuration) signaling, resource pool preconfiguration signaling (Resource pool preconfiguration), media access control control element (MAC CE), layer 1 (Layer 1, L1) signaling, and sidelink control information (SCI). When the communication scenario or the synaesthesia scenario is a downlink scenario, the first indication information may be carried in at least one of radio resource control configuration RRC-configuration signaling or downlink control information (DCI).

[0169] Specifically, the first indication information can be implemented through static / semi-static configuration via RRC-configuration signaling, or can be dynamically indicated via MAC CE / L1 signaling / DCI. Furthermore, the indication information of the sub-chirp signal pattern can be disassembled and combined, and can also be nested or activated, such as the dimension of the generator matrix and the number of '1' elements configured by RRC-configuration, and the specific location of the '1' indicated by SCI / MAC CE, etc.; for example, RRC-configuration configures the pattern indication information, and DCI, etc., indicates whether a certain pattern index is activated for use.

[0170] It should be noted that the term "sending" in this step can be interpreted differently in different application scenarios. For example, in an O-RAN scenario or when this step is applied to a chip, "sending" can be understood as "outputting." For example, in a chip application scenario, the baseband module outputs the first indication information to the RF module. Other methods that can replace or are equivalent to the meaning of "sending" and "receiving" in this application should be within the scope of protection of this application.

[0171] It should also be understood that the term "indicate" or "used to indicate" in this application may also be understood to mean "include", "comprising", etc. For example, the first indication information may indicate the parameters of the sub-chirp signal, or the first indication information may include the parameters of the sub-chirp signal.

[0172] S530: The receiving device determines a first chirp signal according to the first indication information.

[0173] Specifically, the manner in which the receiving device determines the first chirp signal according to the first indication information is described in S420 and will not be repeated here.

[0174] Optionally, the method may further include the following steps:

[0175] S540: The sending device sends a first chirp signal to the receiving device. Correspondingly, the receiving device receives the first chirp signal according to the first indication information.

[0176] Optionally, the sending device sends the first indication information and the first chirp signal simultaneously or successively. This application does not limit the execution order of the steps.

[0177] This method uses sub-chirp modulation and pattern indication methods (static, semi-static, or dynamic) to enable the receiver to receive and decode the synaesthesia waveform pattern, achieving synaesthesia information separation and demodulation, thereby improving the performance of the synaesthesia system. Furthermore, this method increases the information capacity of the communication by modulating the communication information based on different patterns.

[0178] The various implementations described in this document may be independent solutions or may be combined according to internal logic, and all of these solutions fall within the scope of protection of this application.

[0179] It should be understood that the first device in this application can be a network device or a terminal device. The second device can be a network device or a terminal device. In communication scenarios where at least one of the first device and the second device is a terminal device, the solutions of this application are applicable.

[0180] In the embodiments provided in the present application, the methods provided in the embodiments of the present application are introduced from the perspective of interaction between various devices. In order to implement the various functions in the methods provided in the embodiments of the present application, the network device or terminal device may include a hardware structure and / or a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a function of the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

[0181] The division of modules in the embodiments of the present application is illustrative and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the various embodiments of the present application may be integrated into a single processor, or may exist physically separately, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or software functional modules.

[0182] Similar to the above concept, as shown in FIG11 , an embodiment of the present application further provides an apparatus 1100 for implementing the functions of the transmitting device or receiving device in the above method. For example, the apparatus may be a software module or a chip system. In the embodiment of the present application, the chip system may be composed of a chip or may include a chip and other discrete components. The apparatus 1100 may include: a processing unit 1120 and a communication unit 1110.

[0183] In the embodiment of the present application, the communication unit may also be referred to as a transceiver unit, and may include a sending unit and / or a receiving unit, which are respectively used to execute the sending and receiving steps of the sending device or the receiving device in the above method embodiment.

[0184] The communication device provided in the embodiment of the present application is described in detail below with reference to Figures 11 to 13. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for matters not described in detail, reference can be made to the method embodiment above. For the sake of brevity, they will not be repeated here.

[0185] A communication unit may also be referred to as a transceiver, transceiver, transceiver module, or transceiver device. A processing unit may also be referred to as a processor, processing board, processing module, or processing device. Optionally, the device in communication unit 1110 that implements the receiving function may be considered a receiving unit, and the device in communication unit 1110 that implements the transmitting function may be considered a transmitting unit. That is, communication unit 1110 includes both a receiving unit and a transmitting unit. A communication unit may also be referred to as a transceiver, transceiver, or interface circuit. A receiving unit may also be referred to as a receiver, receiver, or receiving circuit. A transmitting unit may also be referred to as a transmitter, transmitter, or transmitting circuit.

[0186] When the communication device 1100 performs the function of the sending device in the process shown in FIG. 4 in the above embodiment:

[0187] The communication unit is used to send and receive information, such as sending a first indication message, sending a first chirp signal, etc.

[0188] The processing unit is configured to generate a first chirp signal light.

[0189] When the communication device 1100 performs the function of the receiving device in any of the processes shown in FIG. 4 in the above embodiments:

[0190] A processing unit is configured to determine a first chirp signal, etc. according to the first indication information.

[0191] The communication unit is used to send and receive information, for example, to receive first indication information or a first chirp signal.

[0192] The above are just examples. The processing unit 1120 and the communication unit 1110 can also perform other functions. For more detailed descriptions, please refer to the method embodiment shown in Figure 3 or related descriptions in other method embodiments, which are not repeated here.

[0193] As another possible product form, the sending device and receiving device described in the embodiment of the present application can be implemented by a general bus architecture. For ease of explanation, refer to Figure 12, which is a structural diagram of a communication device 1200 provided in an embodiment of the present application, and the communication device 1200 includes a processor 1201 and a transceiver 1202. The communication device 1200 can be a sending device, or a chip or chip system therein; or, the communication device 1200 can be a receiving device, or a chip or module therein. Figure 12 only shows the main components of the communication device 1200. In addition to the processor 1201 and the transceiver 1202, the communication device 1200 may further include a memory 1203, and an input and output device (not shown in the figure).

[0194] Optionally, the processor 1201 is primarily used to process communication protocols and communication data, as well as control the entire communication device, execute software programs, and process software program data. The memory 1203 is primarily used to store software programs and data. The transceiver 1202 may include a radio frequency circuit and an antenna. The radio frequency circuit is primarily used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is primarily used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as a touch screen, display, and keyboard, are primarily used to receive user input and output data to the user.

[0195] Optionally, the processor 1201 , the transceiver 1202 , and the memory 1203 may be connected via a communication bus.

[0196] When the communication device is powered on, the processor 1201 can read the software program in the memory 1203, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 1201 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal to the outside in the form of electromagnetic waves via the antenna. When data is sent to the communication device, the radio frequency circuit receives the radio frequency signal via the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1201. The processor 1201 converts the baseband signal into data and processes the data.

[0197] In another implementation, the RF circuit and antenna may be provided independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be remotely arranged independent of the communication device.

[0198] In some embodiments, in terms of hardware implementation, those skilled in the art may conceive that the above-mentioned communication device 1100 may take the form of the communication device 1200 shown in FIG. 12 .

[0199] As an example, the functions / implementation process of the processing module 1120 in FIG11 can be implemented by the processor 1201 in the communication device 1200 shown in FIG12 calling the computer-executable instructions stored in the memory 1203. The functions / implementation process of the transceiver module 1110 in FIG11 can be implemented by the transceiver 1202 in the communication device 1200 shown in FIG12.

[0200] As another possible product form, the transmitting device and receiving device in this application may adopt the structure shown in Figure 13, or include the components shown in Figure 13. Figure 13 is a schematic diagram of the structure of a communication device 1300 provided in this application.

[0201] As shown in FIG13 , a communication device 1300 includes at least one processor 1301. Optionally, the communication device further includes a communication interface 1302.

[0202] When the program instructions are executed in the at least one processor 1301, the apparatus 1300 may implement the method provided in any of the aforementioned embodiments and any possible designs thereof. Alternatively, the processor 1301 may implement the method provided in any of the aforementioned embodiments and any possible designs thereof through logic circuits or by executing code instructions.

[0203] The communication interface 1302 may be used to receive program instructions and transmit them to the processor. Alternatively, the communication interface 1302 may be used for communication between the communication device 1300 and other communication devices, such as exchanging control signaling and / or service data. Exemplarily, the communication interface 1302 may be used to receive signals from devices other than the communication device 1300 and transmit them to the processor 1301, or to send signals from the processor 1301 to other communication devices other than the communication device 1300.

[0204] Optionally, the communication interface 1302 may be a code and / or data read and write interface circuit, or the communication interface 1302 may be a signal transmission interface circuit between a communication processor and a transceiver, or a pin of a chip.

[0205] Optionally, the communication device 1300 may further include at least one memory 1303, which may be used to store required program instructions and / or data. It should be noted that the memory 1303 may exist independently of the processor 1301 or may be integrated with the processor 1301. The memory 1303 may be located within or outside the communication device 1300, without limitation.

[0206] Optionally, the communication device 1300 may further include a power supply circuit 1304, which may be used to supply power to the processor 1301. The power supply circuit 1304 may be located in the same chip as the processor 1301, or in another chip other than the chip where the processor 1301 is located.

[0207] Optionally, the communication device 1300 may further include a bus 1305 , and various parts of the communication device 1300 may be interconnected via the bus 1305 .

[0208] In some embodiments, in terms of hardware implementation, those skilled in the art may conceive that the communication device 1100 shown in FIG. 11 may take the form of the communication device 1300 shown in FIG. 13 .

[0209] As an example, the functions / implementation process of the processing module 1120 in FIG11 can be implemented by the processor 1301 in the communication device 1300 shown in FIG13 calling the computer-executable instructions stored in the memory 1303. The functions / implementation process of the transceiver module 1110 in FIG11 can be implemented by the communication interface 1302 in the communication device 1300 shown in FIG13.

[0210] It should be noted that the structure shown in FIG13 does not constitute a specific limitation on the transmitting device and the receiving device. For example, in other embodiments of the present application, the transmitting device and the receiving device may include more or fewer components than shown, or some components may be combined or separated, or the components may be arranged differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0211] When the communication device is a chip used in a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiments. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the terminal device to the network device.

[0212] When the communication device is a chip used in a network device, the network device chip implements the network device functions of the above method embodiments. The network device chip receives information from other modules in the network device (such as a radio frequency module or antenna), and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules in the network device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device.

[0213] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0214] In the embodiments of the present application, the processor can be a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. Of course, the processor and the storage medium can also exist in a network device or a terminal device as discrete components.

[0215] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, optical storage, etc.) that contain computer-usable program code.

[0216] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each flow and / or box in the flow chart and / or block diagram, as well as the combination of the flow chart and / or box in the flow chart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more flow charts and / or one or more boxes in the block diagram.

[0217] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0218] Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include these modifications and variations.

[0219] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: Generate a first chirp signal, where the first chirp signal includes N sub-chirp signals, where N is a positive integer greater than or equal to 2, and the N sub-chirp signals include a first sub-chirp signal and a second sub-chirp signal. The first sub-chirp signal and the second sub-chirp signal have at least one parameter different from each other, and the parameter includes at least one of the following: a starting time domain resource position, a starting frequency domain resource position, an ending time domain resource position, an ending frequency domain resource position, a slope, a continuous number of time domain units, or a continuous number of frequency domain units. First indication information is sent, where the first indication information is used to indicate the first chirp signal.

2. The method according to claim 1, characterized in that The first indication information is used to indicate the generating matrix of the first chirp signal, the elements included in the rows of the generating matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generating matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals, or the elements included in the rows of the generating matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generating matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals.

3. The method according to claim 2, characterized in that The first indication information is used to indicate the dimension of a generator matrix of the first chirp signal; The first indication information is further used to indicate at least one of the following: the position of a first element, a row of a generator matrix of the first chirp signal, or a column of a generator matrix of the first chirp signal, wherein the time domain resources and frequency domain resources corresponding to the position of the first element are occupied by the sub-chirp signal.

4. The method according to claim 2 or 3, characterized in that A generation matrix of the first chirp signal is different from a generation matrix of the second chirp signal, and receiving devices of the first chirp signal and the second chirp signal are different.

5. The method according to claim 1, wherein The first indication information is used to indicate parameters of the N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: time domain resources and / or frequency domain resources of each sub-chirp signal in the N sub-chirp signals, the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

6. The method according to claim 1, characterized in that The first indication information is used to indicate a first index, the first index corresponds to a first parameter, and the first parameter includes at least one of the following: the value of N, the positive or negative slope of each sub-chirp signal in the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

7. The method according to claim 6, characterized in that The first index is a plurality of first indexes, the plurality of first indexes correspond one-to-one to a plurality of first parameters, and each of the plurality of first parameters is a parameter of a chirp signal.

8. The method according to any one of claims 2 to 7, characterized in that A pattern of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook.

9. The method according to claim 8, characterized in that The second index is a plurality of second indexes, and the plurality of second indexes correspond one-to-one to a plurality of sequences or a plurality of codebooks.

10. The method according to claim 1, characterized in that The first indication information is used to indicate a pattern of the first chirp signal.

11. The method according to any one of claims 1 to 10, characterized in that The first indication information is carried in at least one of direct communication interface radio resource control configuration PC5 RRC-configuration signaling, resource pool preconfiguration signaling Resource pool preconfiguration, media access control element MAC CE, layer 1 signaling, and sidelink control information SCI, or, The first indication information is carried in at least one of radio resource control configuration RRC-configuration signaling or downlink control information DCI.

12. A communication method, characterized in that: include: receiving first indication information, where the first indication information indicates a first chirp signal, where the first chirp signal includes N sub-chirp signals, where N is a positive integer greater than or equal to 2, and the N sub-chirp signals include a first sub-chirp signal and a second sub-chirp signal, and parameters of the first sub-chirp signal and the second sub-chirp signal are different, where the parameters include at least one of the following: a starting time domain resource, a starting frequency domain resource, an ending time domain resource position, an ending frequency domain resource position, a slope, a continuous number of time domain units, or a continuous number of frequency domain units; The first chirp signal is determined according to the first indication information.

13. The method according to claim 12, characterized in that The first indication information is used to indicate the generating matrix of the first chirp signal, the elements included in the rows of the generating matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generating matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals, or the elements included in the rows of the generating matrix of the first chirp signal respectively represent the frequency domain resource positions of the N sub-chirp signals, and the elements included in the columns of the generating matrix of the first chirp signal respectively represent the time domain resource positions of the N sub-chirp signals.

14. The method according to claim 13, wherein: The first indication information is used to indicate the dimension of a generator matrix of the first chirp signal; The first indication information is further used to indicate at least one of the following: the position of a first element, a row of a generator matrix of the first chirp signal, or a column of a generator matrix of the first chirp signal, wherein the time domain resources and frequency domain resources corresponding to the position of the first element are occupied by the sub-chirp signal.

15. The method according to claim 13 or 14, characterized in that A generation matrix of the first chirp signal is different from a generation matrix of the second chirp signal, and receiving devices of the first chirp signal and the second chirp signal are different.

16. The method according to claim 12, characterized in that The first indication information is used to indicate parameters of the N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: time domain resources and / or frequency domain resources of each sub-chirp signal in the N sub-chirp signals, the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

17. The method according to claim 12, wherein: The first indication information is used to indicate a first index, the first index corresponds to a first parameter, and the first parameter includes at least one of the following: the value of N, the positive or negative slope of each sub-chirp signal in the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal in the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal in the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal in the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal in the N sub-chirp signals, and the starting frequency domain resource position and / or the ending frequency domain resource position of each sub-chirp signal in the N sub-chirp signals.

18. The method according to claim 17, characterized in that The first index is a plurality of first indexes, the plurality of first indexes correspond one-to-one to a plurality of first parameters, and each of the plurality of first parameters is a parameter of a chirp signal.

19. The method according to any one of claims 13 to 18, characterized in that A pattern of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook.

20. The method according to claim 19, characterized in that The second index is a plurality of second indexes, and the plurality of second indexes correspond one-to-one to a plurality of sequences or a plurality of codebooks.

21. The method according to claim 12, wherein The first indication information is used to indicate a pattern of the first chirp signal.

22. The method according to any one of claims 12 to 21, characterized in that The first indication information is carried in at least one of PC5 RRC-configuration, Resource pool preconfiguration, MAC CE, layer 1 signaling, and SCI, or, The first indication information is carried in at least one of RRC-configuration signaling or DCI.

23. A communication device, characterized in that: The method comprises modules or units for executing the method according to any one of claims 1 to 11.

24. A communication device, characterized in that: The method comprises modules or units for performing the method according to any one of claims 12 to 22.

25. A communication system, characterized in that: Comprising the communication device as claimed in claim 23 and claim 24.

26. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instructions, which, when executed on a communication device, causes the communication device to execute the method according to any one of claims 1 to 11, or the method according to any one of claims 12 to 22.

27. A computer program product, characterized in that The computer program product comprises a computer program or instructions for executing the method according to any one of claims 1 to 11 or the method according to any one of claims 12 to 22.

28. A chip, characterized in that: The chip includes a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface to execute the method according to any one of claims 1 to 11, or the method according to any one of claims 12 to 22.

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