Communication method, device and system

Abstract

The invention provides a communication method, device and system. The communication method can be applied to the field of communication and / or perception. For example, in the method, a sending device generates a first chirp signal, the first chirp signal comprises N sub-chirp signals, N is a positive integer greater than or equal to 2, 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 at least one parameter of the second sub-chirp signal are different, the parameters comprise at least one of the following items: 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 time domain unit number or a continuous frequency domain unit number; in the embodiment of the invention, the sending device sends the first indication information to the receiving device, the first indication information is used for indicating the first chirp signal, so that the receiving device can receive and decode the corresponding signal waveform, signal interference is reduced, and communication and / or sensing quality is improved.

Description

Technical Field

[0001] This application relates to the field of communications. In particular, it relates to a communication method, apparatus, and system. Background Art

[0002] For future 6G wireless networks, communication capabilities and sensing capabilities will coexist and evolve into the "integrated communication and sensing" technical direction, endowing 6G networks with the ability to sense the physical world at all times and everywhere. This not only fully satisfies the integration and interconnection of multi-dimensional senses but also effectively supports the wide-area expansion of communication capabilities, opening up an application space beyond traditional mobile communication network connections. In multiple industries and industrial organizations, the scope of integrated communication and sensing has also been widely discussed, and the integrated communication and sensing waveform is an important and necessary consideration.

[0003] Currently, the peak sidelobe ratio (PSLR) of the chirp signal waveform based on orthogonal frequency division multiplexing modulation is relatively high. The sidelobes of strong sensing targets are likely to obscure the main lobes of weak sensing targets. Considering sidelobe leakage at the same time, it results in large communication and sensing interference and low sensing accuracy. How to improve communication and / or sensing quality is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a communication method, apparatus, and system that can improve communication and / or sensing quality.

[0005] In a first aspect, a communication method is provided. This method can be executed by a transmitting device, or it can also be executed by a module in the transmitting device, such as a chip or a circuit. This application does not make any limitations in this regard. For ease of description, the following will take the transmitting device as an example for illustration.

[0006] The method includes: generating a first chirp signal, where the first chirp signal includes N sub-chirp signals, N is a positive integer greater than or equal to 2, the N sub-chirp signals include 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. The parameter includes at least one of the following: starting time-domain resource position, starting frequency-domain resource position, ending time-domain resource position, ending frequency-domain resource position, slope, number of continuous time-domain units, or number of continuous frequency-domain units; sending first indication information, where the first indication information is used to indicate the first chirp signal.

[0007] The sub-chirp signal can be a modulation performed on the chirp signal based on orthogonal frequency division multiplexing modulation.

[0008] In this method, a modulation method of sub-chirp signals is adopted, and the pattern of the modulated chirp signals is indicated to the receiving device, enabling the receiving end to receive and decode the corresponding signal waveform, reducing signal interference, and improving communication and / or sensing quality.

[0009] In some implementation manners, the first indication information is used to indicate the generation matrix of the first chirp signal. The elements included in the rows of the generation 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 generation matrix of the first chirp signal respectively represent the frequency-domain resource positions of the N sub-chirp signals. Alternatively, the elements included in the rows of the generation 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 generation matrix of the first chirp signal respectively represent the time-domain resource positions of the N sub-chirp signals.

[0010] In this manner, the pattern of the chirp signal is indicated by means of the generation matrix, saving the resource indication overhead. At the same time, the generation matrix is unique, enabling the receiving end to correctly decode the signal waveform uniquely.

[0011] In some implementation manners, the first indication information is used to indicate the dimension of the generation matrix of the first chirp signal. The first indication information is further used to indicate at least one of the following: the position of the first element, the row of the generation matrix of the first chirp signal, or the column of the generation matrix of the first chirp signal, where the time-domain resource and the frequency-domain resource corresponding to the position of the first element are occupied by the sub-chirp signals.

[0012] In this manner, the specific distribution pattern of the chirp signal is indicated by defining the physical meaning of the elements in the generation matrix, enabling the receiving end to correctly decode the signal waveform uniquely.

[0013] In some implementation manners, the generation matrix of the first chirp signal is different from the generation matrix of the second chirp signal, and the receiving devices of the first chirp signal and the second chirp signal are different.

[0014] In this manner, different chirp signals are used for different receiving devices, which can further reduce the signal interference between multiple receiving devices.

[0015] 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 among the N sub-chirp signals, slopes of each sub-chirp signal among the N sub-chirp signals, number of continuous time-domain units of each sub-chirp signal among the N sub-chirp signals, number of continuous frequency-domain units of each sub-chirp signal among the N sub-chirp signals, start time-domain resource position and / or end time-domain resource position of each sub-chirp signal among the N sub-chirp signals, start frequency-domain resource position and / or end frequency-domain resource position of each sub-chirp signal among the N sub-chirp signals.

[0016] In this way, the parameters of the sub-chirp signals are directly indicated to the receiving device, enabling the receiving end to receive and decode the corresponding chirp signal pattern, reducing signal interference, and improving communication quality.

[0017] 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, positive or negative of the slope of each sub-chirp signal among the N sub-chirp signals, distribution range of the slopes of each sub-chirp signal among the N sub-chirp signals, number of continuous time-domain units of each sub-chirp signal among the N sub-chirp signals, number of continuous frequency-domain units of each sub-chirp signal among the N sub-chirp signals, start time-domain resource position and / or end time-domain resource position of each sub-chirp signal among the N sub-chirp signals, start frequency-domain resource position and / or end frequency-domain resource position of each sub-chirp signal among the N sub-chirp signals.

[0018] In this way, the index corresponding to the parameter group of the sub-chirp signals 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 at the same time.

[0019] In some implementations, the first index is multiple first indexes, the multiple first indexes correspond to multiple first parameters one by one, and each of the multiple first parameters is a parameter of a chirp signal.

[0020] That is, there is a corresponding relationship between the multiple first indexes and the multiple first parameters. Exemplarily, this corresponding relationship can be in the form of a table.

[0021] In this way, the index is indicated to the receiving device, and the receiving device can determine the chirp signal pattern according to the index, further reducing the indication overhead.

[0022] In some implementations, the pattern of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook.

[0023] In this way, communication modulation is performed using the pattern of the chirp signal, which can increase the information capacity of communication.

[0024] In some implementations, the second index is a plurality of second indexes, and the plurality of second indexes are in one-to-one correspondence with a plurality of sequences or a plurality of codebooks.

[0025] That is, there is a correspondence relationship between the plurality of second indexes and a plurality of communication information. Exemplarily, this correspondence relationship can be in the form of a table.

[0026] In this way, the receiving device is instructed of the index, and the receiving device can determine the communication information according to the index, further reducing the indication overhead.

[0027] In some implementations, the first indication information is used to indicate the pattern of the first chirp signal.

[0028] In some implementations, the first indication information is carried in at least one of the direct communication interface radio resource control configuration PC5 RRC-configuration signaling, the resource pool pre-configuration signaling Resource pool preconfiguration, the media access control control element MAC CE, the layer 1 signaling, and the sidelink control information SCI. Alternatively, the first indication information is carried in at least one of the radio resource control configuration RRC-configuration signaling and the downlink control information DCI.

[0029] In this way, different carriers of the first indication information in different application scenarios are provided, improving the scenario compatibility of the first indication information.

[0030] In a second aspect, a communication method is provided. This method can be executed by a terminal device, or can also be executed by a module in a receiving device, such as a chip or a circuit. This application does not make any limitation in this regard. For the sake of description, the following takes the execution by the receiving device as an example for illustration.

[0031] The method includes: receiving first indication information, where the first indication information indicates a first chirp signal, the first chirp signal includes N sub-chirp signals, N is a positive integer greater than or equal to 2, the N sub-chirp signals include a first sub-chirp signal and a second sub-chirp signal, and the 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: starting time-domain resource, starting frequency-domain resource, ending time-domain resource position, ending frequency-domain resource position, slope, number of continuous time-domain units, or number of continuous frequency-domain units; determining the first chirp signal according to the first indication information.

[0032] In some implementations, the first indication information is used to indicate the generation matrix of the first chirp signal. The elements included in the rows of the generation 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 generation 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 generation 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 generation matrix of the first chirp signal respectively represent the time-domain resource positions of the N sub-chirp signals.

[0033] In some implementations, the first indication information is used to indicate the dimension of the generation matrix of the first chirp signal; the first indication information is further used to indicate at least one of the following: the position of the first element, the row of the generation matrix of the first chirp signal, or the column of the generation matrix of the first chirp signal, where the time-domain resource and the frequency-domain resource corresponding to the position of the first element are occupied by the sub-chirp signal.

[0034] In some implementations, the generation matrix of the first chirp signal is different from the generation matrix of the second chirp signal, and the receiving devices of the first chirp signal and the second chirp signal are different.

[0035] In some implementations, the first indication information is used to indicate the parameters of the N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: the time-domain resource and / or frequency-domain resource of each sub-chirp signal among the N sub-chirp signals, the slope of each sub-chirp signal among the N sub-chirp signals, the number of continuous time-domain units of each sub-chirp signal among the N sub-chirp signals, the number of continuous frequency-domain units of each sub-chirp signal among the N sub-chirp signals, the starting time-domain resource position and / or ending time-domain resource position of each sub-chirp signal among the N sub-chirp signals, the starting frequency-domain resource position and / or ending frequency-domain resource position of each sub-chirp signal among the N sub-chirp signals.

[0036] In some implementations, the first indication information is used to indicate a first index, the first index corresponding to a first parameter, the first parameter including at least one of the following: the value of N, the positive or negative of the slope of each sub-chirp signal among the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal among the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal among the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal among the N sub-chirp signals, the start time domain resource position and / or the end time domain resource position of each sub-chirp signal among the N sub-chirp signals, and / or the start frequency domain resource position and / or the end frequency domain resource position of each sub-chirp signal among the N sub-chirp signals.

[0037] In some implementations, the first index is a plurality of first indexes, the plurality of first indexes corresponding one-to-one to a plurality of the first parameters, and each of the plurality of first parameters being a parameter of a chirp signal.

[0038] In some implementations, the pattern of the first chirp signal corresponds to a second index, the second index corresponding to a first sequence or a first codebook.

[0039] In some implementations, the second index is a plurality of second indexes, the plurality of second indexes corresponding one-to-one to a plurality of sequences or a plurality of codebooks.

[0040] In some implementations, the first indication information is used to indicate the pattern of the first chirp signal.

[0041] In some implementations, the first indication information is carried in at least one of PC5 RRC-configuration, Resourcepool preconfiguration, MAC CE, layer 1 signaling, and SCI, or the first indication information is carried in at least one of RRC-configuration signaling and DCI.

[0042] It should be understood that the second aspect is the implementation on the network device side corresponding to the first aspect. Regarding the explanations, supplements, and descriptions of the beneficial effects of the first aspect, the second aspect is equally applicable and will not be elaborated herein.

[0043] In a third aspect, a communication device is provided, including a transceiver unit and a processing unit. The processing unit is configured to generate a first chirp signal, where the first chirp signal includes N sub-chirp signals, N is a positive integer greater than or equal to 2, the N sub-chirp signals include 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. The parameter includes at least one of the following: start time-domain resource position, start frequency-domain resource position, end time-domain resource position, end frequency-domain resource position, slope, number of continuous time-domain units, or number of continuous frequency-domain units. The transceiver unit is configured to send first indication information for indicating the first chirp signal.

[0044] In some implementations, the first indication information is used to indicate the generation matrix of the first chirp signal. The elements included in the rows of the generation 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 generation matrix of the first chirp signal respectively represent the frequency-domain resource positions of the N sub-chirp signals. Alternatively, the elements included in the rows of the generation 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 generation matrix of the first chirp signal respectively represent the time-domain resource positions of the N sub-chirp signals.

[0045] In some implementations, the first indication information is used to indicate the dimension of the generation matrix of the first chirp signal. The first indication information is further used to indicate at least one of the following: the position of the first element, the row of the generation matrix of the first chirp signal, or the column of the generation matrix of the first chirp signal, where the time-domain resource and frequency-domain resource corresponding to the position of the first element are occupied by the sub-chirp signal.

[0046] In some implementations, the generation matrix of the first chirp signal is different from the generation matrix of the second chirp signal, and the receiving devices of the first chirp signal and the second chirp signal are different.

[0047] In some implementations, the first indication information is used to indicate the parameters of the N sub-chirp signals. The parameters of the N sub-chirp signals include at least one of the following: the time-domain resource and / or frequency-domain resource of each sub-chirp signal among the N sub-chirp signals, the slope of each sub-chirp signal among the N sub-chirp signals, the number of continuous time-domain units of each sub-chirp signal among the N sub-chirp signals, the number of continuous frequency-domain units of each sub-chirp signal among the N sub-chirp signals, the start time-domain resource position and / or end time-domain resource position of each sub-chirp signal among the N sub-chirp signals, or the start frequency-domain resource position and / or end frequency-domain resource position of each sub-chirp signal among the N sub-chirp signals.

[0048] In some implementations, the first indication information is used to indicate a first index, the first index corresponding to a first parameter, the first parameter including at least one of the following: the value of N, the positive or negative of the slope of each of the N sub-chirp signals, the distribution range of the slope of each of the N sub-chirp signals, the number of continuous time domain units of each of the N sub-chirp signals, the number of continuous frequency domain units of each of the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each of the N sub-chirp signals, and / or the starting frequency domain resource position and / or the ending frequency domain resource position of each of the N sub-chirp signals.

[0049] In some implementations, the first index is a plurality of first indexes, the plurality of first indexes corresponding one-to-one to a plurality of the first parameters, and each of the plurality of first parameters being a parameter of a chirp signal.

[0050] In some implementations, the pattern of the first chirp signal corresponds to a second index, the second index corresponding to a first sequence or a first codebook.

[0051] In some implementations, the second index is a plurality of second indexes, the plurality of second indexes corresponding one-to-one to a plurality of sequences or a plurality of codebooks.

[0052] In some implementations, the first indication information is used to indicate the pattern of the first chirp signal.

[0053] In some implementations, the first indication information is carried in at least one of PC5 RRC-configuration, Resourcepool preconfiguration, MAC CE, layer 1 signaling, and SCI, or the first indication information is carried in at least one of RRC-configuration signaling and DCI.

[0054] In a fourth aspect, a communication device is provided, including a transceiver unit and a processing unit. The transceiver unit is configured to receive 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 include a first sub-chirp signal and a second sub-chirp signal, and the parameters of the first sub-chirp signal and the second sub-chirp signal are different. The parameters include at least one of the following: starting time domain resource, starting frequency domain resource, 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 is configured to determine the first chirp signal according to the first indication information.

[0055] In some implementations, the first indication information is used to indicate the generation matrix of the first chirp signal. The elements included in the rows of the generation 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 generation matrix of the first chirp signal respectively represent the frequency-domain resource positions of the N sub-chirp signals. Alternatively, the elements included in the rows of the generation 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 generation matrix of the first chirp signal respectively represent the time-domain resource positions of the N sub-chirp signals.

[0056] In some implementations, the first indication information is used to indicate the dimension of the generation matrix of the first chirp signal; the first indication information is further used to indicate at least one of the following: the position of the first element, the rows of the generation matrix of the first chirp signal, or the columns of the generation matrix of the first chirp signal, where the time-domain resource and the frequency-domain resource corresponding to the position of the first element are occupied by the sub-chirp signals.

[0057] In some implementations, the generation matrix of the first chirp signal is different from the generation matrix of the second chirp signal, and the receiving devices of the first chirp signal and the second chirp signal are different.

[0058] In some implementations, the first indication information is used to indicate the parameters of the N sub-chirp signals. The parameters of the N sub-chirp signals include at least one of the following: the time-domain resource and / or the frequency-domain resource of each sub-chirp signal among the N sub-chirp signals, the slope of each sub-chirp signal among the N sub-chirp signals, the number of continuous time-domain units of each sub-chirp signal among the N sub-chirp signals, the number of continuous frequency-domain units of each sub-chirp signal among the N sub-chirp signals, the starting time-domain resource position and / or the ending time-domain resource position of each sub-chirp signal among 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 among the N sub-chirp signals.

[0059] In some implementations, the first indication information is used to indicate a first index, and the first index corresponds to a first parameter. The first parameter includes at least one of the following: the value of N, the positive or negative of the slope of each sub-chirp signal among the N sub-chirp signals, the distribution range of the slope of each sub-chirp signal among the N sub-chirp signals, the number of continuous time-domain units of each sub-chirp signal among the N sub-chirp signals, the number of continuous frequency-domain units of each sub-chirp signal among the N sub-chirp signals, the starting time-domain resource position and / or the ending time-domain resource position of each sub-chirp signal among 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 among the N sub-chirp signals.

[0060] In some implementations, the first index is a plurality of first indexes, the plurality of first indexes correspond one-to-one to a plurality of the first parameters, and each of the plurality of first parameters is a parameter of a chirp signal.

[0061] In some implementations, the pattern of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook.

[0062] In some 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.

[0063] In some implementations, the first indication information is used to indicate the pattern of the first chirp signal.

[0064] In some implementations, the first indication information is carried in at least one of PC5 RRC-configuration, Resourcepool preconfiguration, MAC CE, layer 1 signaling, and SCI, or the first indication information is carried in at least one of RRC-configuration signaling and DCI.

[0065] It should be understood that the third aspect and the fourth aspect are implementation manners on the device side corresponding to the first aspect and the second aspect. The descriptions of the explanations, supplements, and beneficial effects of the first aspect and the second aspect also apply to the third aspect and the fourth aspect, and will not be repeated here.

[0066] In a fifth aspect, the present application provides a communication device, including an interface circuit and a processor. The interface circuit is used to implement the functions of the transceiver unit in the third aspect, and the processor is used to implement the functions of the processing unit in the third aspect.

[0067] In a sixth aspect, the present application provides a communication device, including an interface circuit and a processor. The interface circuit is used to implement the functions of the transceiver unit in the fourth aspect, and the processor is used to implement the functions of the processing unit in the fourth aspect.

[0068] In a seventh aspect, the present application provides a computer-readable medium, which stores program code for a terminal device to execute. The program code includes 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.

[0069] In an eighth aspect, an embodiment of the present application provides a computer-readable medium storing program code for a network device to execute. The program code includes instructions for executing the method according to 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.

[0070] In a ninth aspect, a computer program product storing computer-readable instructions is provided. When the computer-readable instructions run on a computer, the computer is caused to execute the method according to the first aspect, or any possible manner in the first aspect, or all possible manners in the first aspect.

[0071] In a tenth aspect, a computer program product storing computer-readable instructions is provided. When the computer-readable instructions run on a computer, the computer is caused to execute the method according to the second aspect, or any possible manner in the second aspect, or all possible manners in the second aspect.

[0072] In an eleventh aspect, a communication system is provided. The communication system includes means having functions for implementing the method according to the 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 designs.

[0073] In a twelfth aspect, a processor is provided for coupling with a memory and for executing the method according to the first aspect, or any possible manner in the first aspect, or all possible manners in the first aspect.

[0074] In a thirteenth aspect, a processor is provided for coupling with a memory and for executing the method according to the second aspect, or any possible manner in the second aspect, or all possible manners in the second aspect.

[0075] In a fourteenth aspect, a chip system is provided. The chip system includes a processor and may further include a memory for executing a computer program or instructions stored in the memory, so that the chip system implements the method in any one of the foregoing first aspect or second aspect, and any possible implementation manner of any one aspect. The chip system may be composed of chips or may include chips and other discrete devices.

[0076] In a fifteenth aspect, a communication method is provided. The method includes: a transmitting device generates a first chirp signal, where the first chirp signal includes N sub-chirp signals, N is a positive integer greater than or equal to 2, the N sub-chirp signals include 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 includes at least one of the following: starting time-domain resource position, starting frequency-domain resource position, slope, number of continuous time-domain units, or number of continuous frequency-domain units; the transmitting device sends first indication information to a receiving device, where the first indication information is used to indicate the first chirp signal, and correspondingly, the receiving device receives the first indication information; the receiving device determines the first chirp signal according to the first indication information. Description of the Drawings

[0077] Figure 1 It is a schematic diagram of the architecture of a communication system 1000 to which an embodiment of the present application is applied.

[0078] Figure 2 It is a schematic diagram of the time-frequency domain relationship of an OFDM-Chirp signal.

[0079] Figure 3 It is a schematic diagram of several Chirp signal patterns.

[0080] Figure 4 It is a schematic diagram of an application scenario of the present application.

[0081] Figure 5 It is a schematic diagram of a communication method provided by an embodiment of the present application.

[0082] Figure 6 It is a schematic diagram of a chirp signal provided by an embodiment of the present application.

[0083] Figure 7 It is a schematic diagram of the relationship between a chirp signal and a generation matrix provided by an embodiment of the present application.

[0084] Figure 8 It is a schematic diagram of another chirp signal provided by an embodiment of the present application.

[0085] Figure 9 It is a schematic diagram of another chirp signal provided by an embodiment of the present application.

[0086] Figure 10 It is a schematic diagram of the correspondence between a chirp signal and a communication sequence provided by an embodiment of the present application.

[0087] Figure 11 It is a schematic block diagram of a communication device.

[0088] Figure 12 It is a schematic block diagram of another communication device.

[0089] Figure 13 is a schematic block diagram of another communication device. Detailed implementation manners

[0090] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings.

[0091] Figure 1 is a schematic architecture diagram of a communication system 1000 to which the embodiments of the present application are applied. As Figure 1 shown, the communication system includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 may further include the Internet 300. Among them, the radio access network 100 may include at least one radio access network device (such as Figure 1 110a and 110b in Figure 1 ), and may further include at least one terminal (such as Figure 1 120a - 120j in Figure 1 ). The terminal is connected to the radio access network device wirelessly, and the radio access network device is connected to the core network wirelessly or wiredly. The core network device and the radio access network device may be independent different physical devices, or the functions of the core network device and the logical functions of the radio access network device may be integrated on the same physical device, or the functions of part of the core network device and part of the radio access network device may be integrated on a physical device. The terminals and the radio access network devices may be connected to each other wiredly or wirelessly.

[0092] The 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 5th generation (5G) mobile communication system, a next generation NodeB in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it can also be a module or unit that completes some functions of the base station. For example, it can be a central unit (CU) or a distributed unit (DU). Here, the CU completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete some or all of the functions of the physical layer. For the specific descriptions of the above various protocol layers, reference can be made to the relevant technical specifications of the 3rd generation partnership project (3GPP). The radio access network device can be a macro base station (such as Figure 1 110a in Figure 1 ), or a micro base station or an indoor station (such as

[0093] 110b in

[0094] ), or a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the radio access network device. For the convenience of description, the base station is used as an example of the radio access network device in the following description.

[0093] The terminal device can be a device that provides voice / data to users. For example, it can be a handheld device, a vehicle-mounted device, etc. with wireless connection functions. The terminal device may include a user equipment, and is sometimes also referred to as a terminal, an access station, a UE station, a remote station, a wireless communication device, or a user device, etc.

[0094] For example, the terminal device may be a mobile phone, a tablet computer (Pad), 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 remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc. The embodiments of the present application are not limited thereto.

[0095] By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. A wearable device, also known as a wearable intelligent device, is a general term for devices developed by applying wearable technology to intelligently design daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. A wearable device is not only a hardware device, but can also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include devices with complete functions and large sizes that can implement complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and devices that only focus on a certain type of application function and need to cooperate with other devices such as smart phones, such as various smart bracelets and smart jewelry for measuring physical signs.

[0096] The terminal device can also be a V2X device. For example, a smart car (or intelligent car), a digital car, an unmanned car (or driverless car or pilotless car or automobile), a self-driving car (or autonomous car), a pure electric vehicle (pure EV or Battery EV), a hybrid electric vehicle (HEV), a range-extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV), a new energy vehicle, or a road site unit (RSU). The terminal device can also be a device in device-to-device (D2D) communication, such as an electricity meter, a water meter, etc.

[0097] 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-object interconnection.

[0098] Any of the various terminal devices introduced above, if located on a vehicle (such as placed inside or installed inside the vehicle), can be considered an in-vehicle terminal device. The in-vehicle terminal device is also called an on-board unit (OBU) for example. The terminal device of the present application can also be an in-vehicle module, in-vehicle module group, in-vehicle component, in-vehicle chip, or in-vehicle unit built into the vehicle as one or more components or units. The vehicle can implement the method of the present application through the built-in in-vehicle module, in-vehicle module group, in-vehicle component, in-vehicle chip, or in-vehicle unit.

[0099] The base station and the terminal can be in fixed positions or movable. The base station and the terminal can be deployed on land, including indoor or outdoor, handheld or in-vehicle; they can also be deployed on water; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of the present application do not limit the application scenarios of the base station and the terminal.

[0100] The roles of the base station and the terminal can be relative. For example, Figure 1The helicopter or drone 120i in it can be configured as a mobile base station. For the terminals 120j accessing the radio access network 100 through 120i, 120i is a base station; but for the base station 110a, 120i is a terminal, that is, the communication between 110a and 120i is through the radio air interface protocol. Of course, the communication between 110a and 120i can also be through the interface protocol between base stations. At this time, relative to 110a, 120i is also a base station. Therefore, both base stations and terminals can be uniformly referred to as communication devices. Figure 1 110a and 110b in it can be referred to as communication devices with base station functions. Figure 1 120a - 120j in it can be referred to as communication devices with terminal functions.

[0101] The communication between base stations and terminals, between base stations and base stations, and between terminals and terminals can be carried out through authorized spectrum, can also be carried out through unlicensed spectrum, or can be carried out through both authorized spectrum and unlicensed spectrum at the same time; it can communicate through the spectrum below 6 gigahertz (GHz), can also communicate through the spectrum above 6 GHz, or can also use the spectrum below 6 GHz and the spectrum above 6 GHz at the same time. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0102] In the embodiments of the present application, the functions of the base station can also be executed by modules (such as chips) in the base station, or can be executed by a control subsystem including base station functions. The control subsystem including base station functions here can be the control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal can also be executed by modules (such as chips or modems) in the terminal, or can be executed by a device including terminal functions.

[0103] The technical solutions provided by the embodiments of the present application can be applied to the wireless communication between communication devices. The wireless communication between communication devices can include: the wireless communication between network devices and terminals, the wireless communication between network devices and network devices, and the wireless communication between terminal devices and terminal devices. Among them, in the embodiments of the present application, the term "wireless communication" can also be abbreviated as "communication", and the term "communication" can also be described as "data transmission", "information transmission" or "transmission".

[0104] It can be understood that in the embodiments of the present application, the names of each signaling are only for example, and there may be different names in different systems and different scenarios. The embodiments of the present application do not limit this.

[0105] To facilitate the understanding of the solutions of the embodiments of the present application, an explanation of relevant concepts is made.

[0106] 1. Chirp Signal

[0107] A chirp signal is a typical non - stationary signal and has wide applications in fields such as communication, sonar, and radar. When encoding a pulse, the carrier frequency of the pulse is linearly increased or decreased within the pulse - duration time domain, thus forming a special time - frequency characteristic signal.

[0108] Chirp signals have many advantages in communication, such as strong anti - interference ability, long transmission distance, and the ability to penetrate complex environments. In addition, chirp signals are also widely used in fields such as radar, sonar, and navigation. For example, in optical fiber communication, the phenomenon that the center wavelength instantaneously shifts when transmitting a single pulse due to the instability of the laser diode itself is called "chirp", and this effect can improve the transmission distance and speed of optical fiber communication.

[0109] The chirp signal in this application may also have other names, such as time - frequency offset signal, pulse signal, etc. However, any signal that conforms to the characteristics of the above - mentioned chirp signal should be within the protection scope of this application. For example, a chirp signal can also be called a linear frequency modulation (LMF) signal.

[0110] An LFM rectangular pulse signal can be expressed as:

[0111]

[0112]

[0113] where \(f_0\) is the center frequency, \(u\) is the frequency - modulation slope, \(B\) is the frequency - modulation bandwidth, and \(T\) is the pulse width.

[0114] This LFM signal is a pulse - compression signal widely used in radar. It can simultaneously obtain a long operating range and high range resolution through pulse - compression technology, has very low sensitivity to Doppler frequency shift, good detection performance, and strong robustness and anti - interference ability. However, the transmission rate of this LMF signal is relatively low.

[0115] A chirp signal is a chirp signal based on orthogonal frequency division multiplexing (OFDM) (OFDM - chirp). Its basic principle is to modulate the chirp signal onto different sub - carrier groups respectively. Since the sub - carriers of the OFDM signal are orthogonal to each other, the signals on different sub - carrier groups naturally also satisfy orthogonality. The OFDM - Chirp signal model is:

[0116]

[0117] Where: t is the time sample of the signal, u(t) is the rectangular window function, and fn and kn are the starting frequency and slope of the n-th subcarrier of the signal, respectively.

[0118] The time-frequency domain relationship of the OFDM-Chirp signal is as Figure 2 shown. Where △f is the frequency domain occupied bandwidth of the sub-chirp signal, or the occupied frequency domain resource.

[0119] Due to the multi-carrier characteristics of the OFDM-Chirp system, the transmission rate is relatively high, which can solve the problem of low transmission rate of the LMF signal. However, compared with traditional OFDM signals, each subcarrier occupies more bandwidth and the spectrum utilization rate is relatively low.

[0120] The basic Chirp signal pattern or organization can be as Figure 3 shown, and can be divided into up-Chirp (slope k>0), down-Chirp (k<0), and hybrid Chirp, etc. Figure 3 In (a), it is up-Chirp. In this figure, all sub-Chirps (such as one of the diagonal lines) have the same slope and are all greater than 0. Figure 3 In (b), it is down-Chirp. In this figure, all sub-Chirps (such as one of the diagonal lines) have the same slope and are all less than 0. Figure 3 In (c), it is hybrid Chirp. In this figure, some sub-Chirps (such as one of the diagonal lines) have the same slope and are all less than 0, and some other sub-Chirps (such as one of the diagonal lines) have the same slope and are all greater than 0.

[0121] 2. Time domain unit

[0122] The time domain unit can be one or several symbols, one or several time slots, one or several mini-slots, one or several sub-frames, one or several frames, etc. One or more time domain units can be continuous or discrete in time. It should be understood that the time domain units are logically continuous within a resource pool. In this application, the understanding of the definitions of symbols, mini-slots, time slots, sub-frames, and frames can refer to the 3GPP protocol.

[0123] 3. Frequency domain unit

[0124] A frequency domain unit may be a resource element (RE), several REs, a resource block (RB), several RBs, a sub-channel, or several sub-channels. The size of a sub-channel, which indicates the number of one or more consecutive or interlaced RBs included in a sub-channel, may be an integer such as 10, 12, 15, 20, 25, 50, 75, and 100.

[0125] Currently, the PSLR of OFDM- / Chirp-waveforms is relatively high. The sidelobes of strong targets are likely to obscure the main lobes of weak targets. Considering sidelobe leakage at the same time, the communication-sensing interference is large, resulting in a low signal SNR and low sensing accuracy. At the same time, the superimposition of communication bit information on chirps is not considered, and the communication capacity is limited.

[0126] In view of this, the present application proposes a communication method that can improve sensing accuracy.

[0127] The communication method of the present application can be applied to systems where user devices communicate directly with each other, such as V2X and D2D, and is applicable to communication scenarios with and without network coverage. As Figure 4 shown, the user device can be within the coverage range of the network device or outside the coverage range of the network device.

[0128] This communication method can be applicable between a network device and a terminal device, between network devices, or between terminal devices. The present application does not make specific limitations. Exemplarily, when this communication method is applicable to a sensing scenario, the sensing mode can be that network device A sends a sensing signal and network device A receives the sensing signal; or, network device A sends a sensing signal and network device B receives the sensing signal; or, network device A sends a sensing signal and the terminal device receives the sensing signal; or, the terminal device sends a sensing signal and network device A receives the sensing signal. That is, the communication method provided by the present application can be applicable to communication scenarios, sensing scenarios, and communication-sensing integrated scenarios. In short, for scenarios applicable to chirp signals, the communication method of the present application can be applicable.

[0129] The following uses the example of a transmitting device and a receiving device as the execution entities of this communication method to illustrate this communication method. As Figure 5 shown, the method includes the following steps:

[0130] S510, the transmitting device generates a first chirp signal.

[0131] The first chirp signal includes N sub-chirp signals, where N is a positive integer greater than or equal to 2. Or rather, the N sub-chirp signals constitute or form the first chirp signal. The N sub-chirp signals include a first sub-chirp signal and a second sub-chirp signal, and the parameters of the first sub-chirp signal and the second sub-chirp signal are different. Among them, the parameters of the sub-chirp signal include at least one of the following: starting time-domain resource position, starting frequency-domain resource position, slope, number of continuous time-domain units, or number of continuous frequency-domain units.

[0132] Among them, the starting time-domain resource can be the time-domain resource that is the most forward in the time-domain position among the time-domain resources occupied by the sub-chirp signal. Or rather, the starting time-domain resource can 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 can be one time-domain unit.

[0133] The starting frequency-domain resource can be the frequency-domain resource that is the lowest or the highest in the frequency-domain position among the frequency-domain resources occupied by the sub-chirp signal. Or rather, the starting frequency-domain resource can be the frequency-domain resource with the smallest or the largest index among the frequency-domain resources occupied by the sub-chirp signal. The starting frequency-domain resource can be one frequency-domain unit.

[0134] The slope is the slope of the line segment of the sub-chirp signal in the pattern diagram. As Figure 6 shown, in the illustration of the Chirp signal pattern, among the N sub-chirp signals included in the first chirp signal, the slopes of the line segments corresponding to each sub-chirp signal may be the same or different. As Figure 6 seen from the time-domain unit, the frequency of the sub-chirp signal can be 1 or -1.

[0135] 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 , the number of time-domain units occupied by each sub-chirp signal is the same, all being one time-domain unit. However, this application is not limited thereto. For example, the first chirp signal can include sub-chirp signal A and sub-chirp signal B. The number of time-domain units occupied by sub-chirp signal A is 3, and the number of time-domain units occupied by sub-chirp signal B is 2.

[0136] 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 , the number of frequency-domain units occupied by each sub-chirp signal is the same, all being one frequency-domain unit. However, this application is not limited thereto. For example, the first chirp signal can include sub-chirp signal A and sub-chirp signal B. The number of frequency-domain units occupied by sub-chirp signal A is 2, and the number of frequency-domain units occupied by sub-chirp signal B is 1.

[0137] It should be understood that the above parameters may also include the end time-domain resource position and the end 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 start time-domain resource position and an end time-domain resource position, and both the start time-domain resource position and the end time-domain resource position can be used to determine the resources occupied by the first sub-chirp signal in the time domain. The end frequency-domain resource position is the same as the end time-domain resource position and will not be elaborated.

[0138] In addition, the parameters of the sub-chirp signal in this application are not limited to the above examples. For example, the time-domain resource position 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 resources occupied by the first sub-chirp signal. In short, parameters that can be used to determine the time-domain resources and / or frequency-domain resources occupied by the sub-chirp signal are all applicable to this application and are within the protection scope of this application.

[0139] Other parameters that can be used to determine the time-frequency resource position of the sub-chirp signal should all be within the protection scope of this application, such as reference positions and parameters such as the relative distance between the time-domain resources and / or frequency-domain resources occupied by the sub-chirp signal and the reference position.

[0140] It should also be understood that the parameters of the first sub-chirp signal and the second sub-chirp signal are different. They can be that all of the foregoing parameters are different, or some of the parameters are different. For example, one of the parameters of the first sub-chirp signal and the second sub-chirp signal is different. The foregoing parameters are at least one of, for example, the start time-domain resource position, the start frequency-domain resource position, the end time-domain resource position, the end frequency-domain resource position, the slope, the number of continuous time-domain units, or the number of continuous frequency-domain units.

[0141] The chirp signal in the communication method of this application can be a chirp signal obtained by further modulating based on OFDM-Chirp.

[0142] S520, the sending device sends first indication information to the receiving device. Correspondingly, the receiving device receives the first indication information.

[0143] 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. As another example, the first indication information is used to indicate the pattern of the first chirp signal. The pattern can be a style, a pattern, a shape, etc.

[0144] 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 at least one of the foregoing 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 (i.e., the relevant parameters of the first sub-chirp signal and the second sub-chirp signal in S510).

[0145] The implementation of the indication method of the first indication information will be described below.

[0146] A possible implementation 1: The first indication information is used to indicate the generation matrix of the first chirp signal.

[0147] The dimension of the chirp signal generation matrix is related to the number of time-domain resource units and / or frequency-domain resource units occupied by the chirp signal. For example, the dimension of generation matrix A is 7*7, that is, the number of elements included in the rows and columns of this generation matrix is 7 each, indicating that the chirp signal A corresponding to this generation matrix A occupies 7 time-domain resource units in the time domain and 7 frequency-domain resource units in the frequency domain.

[0148] The elements included in the rows of the chirp signal generation matrix respectively represent the time-domain resource positions of N sub-chirp signals included in the chirp signal, and the elements included in the columns of the chirp signal generation matrix respectively represent the frequency-domain resource positions of N sub-chirp signals. As Figure 7 shown, it is a schematic diagram of a chirp signal generation matrix. The rows and columns of this matrix respectively include eight elements, that is, the dimension of this matrix is 8*8. The values of the elements included 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 this element are occupied by the sub-chirp signal. 0 indicates that the time-domain resource and frequency-domain resource corresponding to the position of this element are not occupied by the sub-chirp signal.

[0149] It should be understood that the correspondence between the value of the matrix element and the meaning represented by this value can be preset or configured, and this application does not limit this. For example, 1 indicates that the time-domain resource and frequency-domain resource corresponding to the position of this element are not occupied by the sub-chirp signal. 0 indicates that the time-domain resource and frequency-domain resource corresponding to the position of this 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.

[0150] The first indication information indicates the generation matrix of the first chirp signal, including the dimension of the generation 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 rows of the generation matrix of the first chirp signal, or the columns of the generation matrix of the first chirp signal. Specifically, reference can be made to Figure 7 as shown. The first indication information indicates that the dimension of the generation matrix is 8*8, and the first indication information can also indicate Figure 7 the elements in each row and each column. The first element is 1, and the first indication information can also indicate the position where the first element is located, or in other words, the first indication information can also indicate which position has the first element. By way of example, Figure 7 the chirp signal pattern (right figure) in Figure 3 is generated based on Figure 3 (c) in Figure 7 That is, R in Figure 3 is the generation matrix, and Rc1 indicates that taking

[0151] (c) in Figure 7 as the base to generate the first chirp signal X. Figure 7 It should be understood that

[0152]

[0153] the generation matrix in Figure 7 is only an example. Other transformation forms of this matrix should also be within the protection scope of this application. Or, Figure 7 the generation matrix in Figure 7 is only a part and is included in a larger matrix, such as: Figure 7

[0154]

[0155]

[0156] The dimension of this matrix is 9*9, where the elements in the ninth row and the ninth column are both 0, and the chirp signal corresponding to this matrix is the same as the chirp signal corresponding to the matrix in Figure 7 This matrix has one more row and one more column compared to the matrix in Figure 7 . For other matrices, such as having one more row than the matrix in Figure 7 and the elements in the extra row being all 0, it can also represent the same sub-chirp signal as the matrix in Figure 7 .

[0154] In summary, the form of the matrix in this application is not limited, and any matrix that can indicate each sub-chirp signal, or in other words, any matrix that can indicate the first chirp signal, should be within the protection scope of this application.

[0155] The receiving device can determine the number of sub-chirp signals, the positions of the sub-chirp signals, the time-domain resources and frequency-domain resources occupied by the sub-chirp signals according to the generation matrix. The receiving device can further determine the first chirp signal based on the N sub-chirp signals.

[0156] It should be understood that for different chirp signals, their respective generation matrices are different. For example, the first chirp signal corresponds to generation matrix 1, and the second chirp signal corresponds to generation matrix 2, and matrix 1 and matrix 2 are different. Specifically, it can be that the number of the first elements is different, the positions of the first elements are different, the dimensions of the generation matrix are different, and so on.

[0157] These different chirp signals can be sent by a sending device to different receiving devices. By way of example, the sending device sends the first chirp signal to receiving device 1, and correspondingly, receiving device 1 receives the first chirp signal. The sending device sends the second chirp signal to receiving device 2, and correspondingly, receiving device 2 receives the second chirp signal. Generating different chirp signals through different generation matrices and sending them to different receiving devices can avoid signal interference between multiple receiving devices, which is beneficial to improving communication quality or sensing quality.

[0158] A possible implementation 2: The first indication information is used to indicate the parameters of the first chirp signal.

[0159] Specifically, the first indication information is used to indicate the parameters of the sub-chirp signals included in the first chirp signal. By way of 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: the time domain resources and / or frequency domain resources of each sub-chirp signal among the N sub-chirp signals, the slope of each sub-chirp signal among the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal among the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal among the N sub-chirp signals, the starting time domain resource position and / or ending time domain resource position of each sub-chirp signal among the N sub-chirp signals, and the starting frequency domain resource position and / or ending frequency domain resource position of each sub-chirp signal among the N sub-chirp signals.

[0160] Optionally, the frequency domain resource position of each of the above sub-chirp signals can also be indicated by a predefined frequency domain resource position, and the time domain resource position of each of the above sub-chirp signals can 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. Or, other parameters that can be used to determine the time-frequency resource positions of the sub-chirp signals should all be within the protection scope of this application, such as reference positions and parameters such as the relative distances between the time domain resources and / or frequency domain resources occupied by the sub-chirp signals and the reference positions.

[0161] A possible indication method is that the first indication information directly indicates the specific value of the above parameters. For example, the first indication information indicates that the first chirp signal includes 3 sub-chirp signals. Suppose the 3 sub-chirp signals are sub-chirp signal A, sub-chirp signal B, and sub-chirp signal C respectively. The first indication information can 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.

[0162] According to the first indication information, the receiving device can determine the pattern of the first chirp signal as Figure 8 shown.

[0163] Another possible indication method is that the first indication information indirectly indicates the specific value of the above parameters. Exemplarily, 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 sub-chirp signals. Specifically, the value of N, the positive or negative of the slope of each of the N sub-chirp signals, the distribution range of the slope of each of the N sub-chirp signals, the number of continuous time-domain units of each of the N sub-chirp signals, the number of continuous frequency-domain units of each of the N sub-chirp signals, the starting time-domain resource position and / or the ending time-domain resource position of each of the N sub-chirp signals, and the starting frequency-domain resource position and / or the ending frequency-domain resource position of each of the N sub-chirp signals. [[ID=⑨]] [[ID=⑩]]

[0164] [[ID=⑪]]Among them, the positive or negative of the slope of each sub-chirp signal is such that 1 represents a positive slope and 0 represents a negative slope. The distribution range of the slope of each sub-chirp signal is such that 0, 1, 2, 3 respectively represent slopes in ±22.5°, ±(0 - 45°), ±(45° - 67.5°), ±(67.5° - 90°). [[ID=⑫]] [[ID=⑬]]

[0165] It should be understood that the first index can be multiple first indexes, and the multiple first indexes correspond one-to-one to multiple first parameters, and each first parameter in the multiple first parameters is a parameter of a chirp signal. In other words, the patterns of multiple chirp signals can form a set. In this set, different patterns correspond to different indexes. The set is only an example of a relationship of multiple patterns, and this application is not limited thereto. For example, the relationship between multiple patterns, indexes, and specific parameters can be presented in the form of a table as follows:

[0166]

[0167] It should be understood that the above table takes subcarriers as an example of frequency domain units. It should also be understood that the above table is only an example. In specific implementations, the parameters and values in the table can be preset or adjusted. The above table may also be implemented in part or in whole.

[0168] When the pattern index is 2, the corresponding form of the sub-chirp signal can be Figure 9 .

[0169] Specifically, which sub-chirp signal pattern to adopt can be flexibly indicated according to the actual communication and sensing scenario. For example, under the minimum Signal to Interference plus Noise Ratio (SINR), a chirp signal with a pattern index of 1 can be adopted. Under the condition of maximum communication capacity, a chirp signal with a pattern index of 2 can be adopted. The transmitting device can flexibly and dynamically indicate the change of the pattern to achieve the optimal effect of the system.

[0170] Optionally, the above chirp signal can also correspond to communication information. For example, communication bits are modulated on the sub-chirp signal at the same time to improve the communication capacity. Specifically, the style of the first chirp signal corresponds to a second index, and the second index corresponds to a first sequence or a first codebook. The first sequence is a communication sequence, and the first codebook is a communication codebook. Among them, the second index can be multiple second indexes, and the multiple second indexes correspond one-to-one to multiple sequences or multiple codebooks. That is, different sub-chirp signals (or their combinations) correspond to different indexes of communication codebooks or sequences. The sequence is a communication modulation sequence or a communication signal.

[0171] For example, as Figure 10 shown, a communication sequence is modulated on each sub-chirp signal (the slope, duration time domain, number of occupied subcarriers, etc. can be different), and the sequence is Ci in the table. Different sub-chirp signals (or their combinations) can carry different communication information sequences and contents. Figure 10The slope of the sub-chirp signals included in the chirp signal in S1 is 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 carried is Ci, such as C1 being {7 52 3 6 1 0 4}. Figure 10 This is just an example. For example, the form of the sequence Ci can also be a 0 / 1 sequence, corresponding to a communication signal. Among them, different chirp signals S1, S2, S3, and S4 correspond to different sequences respectively.

[0172] When the communication scenario or the communication and sensing scenario is sidelink, the above first indication information can be carried in at least one of the 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 (media access control control element, MAC CE), layer 1 (layer 1, L1) signaling, and sidelink control information (sidelink control information, SCI). When the communication scenario or the communication and sensing scenario is a downlink scenario, the first indication information can be carried in at least one of the radio resource control configuration RRC-configuration signaling or downlink control information (downlink control information, DCI).

[0173] Specifically, the first indication information can be implemented through static / semi-static configuration of the RRC-configuration signaling, or can be carried as a dynamic indication through MAC CE / L1 signaling / DCI. Further, the indication information of the above sub-chirp signal pattern can be disassembled and combined, or can be nested indicated or activated, etc. For example, the RRC-configuration configures the dimension of the generation matrix of the pattern and the number of elements '1', and SCI / MAC CE, etc., indicate the specific positions of '1'; for another example, the RRC-configuration configures the pattern indication information, and DCI, etc., indicate whether a certain pattern Index is activated for use, etc.

[0174] It should be noted that the "transmission" in this step can have different interpretations in different application scenarios. For example, in the O-RAN scenario or when this step is applied to a chip, this transmission can be understood as output. For example, in the application scenario of a chip, the baseband module outputs the first indication information to the radio frequency module. Other ways that can replace or be equivalent to the meanings of "transmission" and "reception" in this application should be within the protection scope of this application.

[0175] It should also be understood that the "indication" or "for indicating" in this application can also be understood as meanings such as "including", "comprising", etc. For example, the first indication information indicates the parameters of the sub-chirp signal, or it can also be that the first indication information includes the parameters of the sub-chirp signal.

[0176] S530. The receiving device determines the first chirp signal according to the first indication information.

[0177] Specifically, the manner in which the receiving device determines the first chirp signal according to the first indication information refers to the description in S420 and will not be elaborated here.

[0178] Optionally, this method may further include the following steps:

[0179] S540. The sending device sends the first chirp signal to the receiving device. Correspondingly, the receiving device receives the first chirp signal according to the first indication information.

[0180] Optionally, the sending device may send the first indication information and the first chirp signal simultaneously or successively. This application does not limit the execution order between steps.

[0181] This method adopts the modulation method of sub-chirp signals and the pattern indication method (static / semi-static / dynamic), enabling the receiving end to receive and decode the pattern of the communication and sensing waveform, realizing the separation and demodulation of communication and sensing information, and improving the performance of the communication and sensing system. Further, in this method, different patterns are used to modulate communication information, increasing the information capacity of the communication.

[0182] Each implementation described in this article can be an independent solution or can be combined according to the internal logic, and these solutions all fall within the protection scope of this application.

[0183] 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 the communication scenario where at least one of the first device and the second device is a terminal device, the solution of this application can be applied.

[0184] In the embodiments provided in the present application above, the methods provided in the embodiments of the present application are introduced from the perspective of interactions between various devices. To implement each function in the methods provided in the embodiments of the present application above, a network device or a terminal device may include a hardware structure and / or software modules, and implement the above functions in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Whether a certain function among the above functions is executed in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module depends on the specific application and design constraints of the technical solution.

[0185] The division of modules in the embodiments of the present application is illustrative, and is only a logical function division. There may be other division methods in actual implementation. In addition, in each embodiment of the present application, each functional module may be integrated in a processor, may exist separately physically, or two or more modules may be integrated in one module. The above integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0186] With the same concept as above, as Figure 11 shown, the embodiments of the present application further provide a device 1100 for implementing the functions of the sending device or the receiving device in the above method. For example, the device may be a software module or a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. The device 1100 may include: a processing unit 1110 and a communication unit 1120.

[0187] In the embodiments 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 embodiments.

[0188] Next, in combination with Figures 11 to 13 the communication device provided in the embodiments of the present application will be described in detail. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, the content not described in detail may be referred to the above method embodiments. For the sake of brevity, it will not be repeated here.

[0189] The communication unit may also be referred to as a transceiver, a transceiver machine, a transceiver device, etc. The processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device for implementing the receiving function in the communication unit 1120 may be regarded as a receiving unit, and the device for implementing the sending function in the communication unit 1120 may be regarded as a sending unit, that is, the communication unit 1120 includes a receiving unit and a sending unit. The communication unit may sometimes also be referred to as a transceiver machine, a transceiver, or an interface circuit, etc. The receiving unit may sometimes also be referred to as a receiver, a receiver, or a receiving circuit, etc. The sending unit may sometimes also be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0190] When the communication device 1100 executes the functions of the sending device in the processes shown in the above embodiments: Figure 4 The process shown:

[0191] The communication unit is used for sending and receiving information. For example, sending the first indication information, sending the first chirp signal, etc.

[0192] The processing unit is used to generate the first chirp signal lamp.

[0193] When the communication device 1100 executes the functions of the receiving device in any of the processes shown in the above embodiments: Figure 4 The process shown:

[0194] The processing unit is used to determine the first chirp signal according to the first indication information, etc.

[0195] The communication unit is used for sending and receiving information. For example, for receiving the first indication information, or receiving the first chirp signal, etc.

[0196] The above are only examples. The processing unit 1110 and the communication unit 1120 can also execute other functions. For a more detailed description, reference can be made to Figure 3 The relevant descriptions in the method embodiments shown or other method embodiments, which will not be elaborated here.

[0197] As another possible product form, the sending device and the receiving device described in the embodiments of the present application can be implemented by a general bus architecture. For the sake of illustration, see Figure 12 , Figure 12 FIG. is a schematic structural diagram of a communication device 1200 provided by an embodiment of the present application. 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 a chip system thereof; or, the communication device 1200 can be a receiving device, or a chip or a module thereof. Figure 12 Only the main components of the communication device 1200 are shown. In addition to the processor 1201 and the transceiver 1202, the communication device 1200 may further include a memory 1203 and an input / output device (not shown in the figure).

[0198] Optionally, the processor 1201 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process the data of software programs. The memory 1203 is mainly used to store software programs and data. The transceiver 1202 may include a radio frequency circuit and an antenna. The radio frequency circuit is mainly used for the conversion between baseband signals and radio frequency signals and the processing of radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. The input / output device, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive data input by the user and output data to the user.

[0199] Optionally, the processor 1201, the transceiver 1202, and the memory 1203 may be connected through a communication bus.

[0200] After the communication device is powered on, the processor 1201 may 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 wirelessly transmitted, the processor 1201 performs baseband processing on the data to be transmitted and then outputs a 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 outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the radio frequency circuit receives the radio frequency signal through 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.

[0201] In another implementation, the radio frequency circuit and the antenna may be set independently of the processor performing baseband processing. For example, in a distributed scenario, the radio frequency circuit and the antenna may be independent of the communication device and arranged in a remote manner.

[0202] In some embodiments, in terms of hardware implementation, those skilled in the art can conceive that the above communication device 110 may adopt Figure 12 the form of the communication device 1200 shown.

[0203] As an example, Figure 11 the function / implementation process of the processing module 1120 in Figure 12 can be implemented by the processor 1201 in the communication device 1200 shown calling the computer-executable instructions stored in the memory 1203. Figure 11 the function / implementation process of the transceiver module 1110 in Figure 12 can be implemented by the transceiver 1202 in the communication device 1200 shown.

[0204] As another possible product form, the sending device and the receiving device in the present application may adopt Figure 13 the composition structure shown, or include Figure 13The components shown. Figure 13 It is a schematic diagram of the composition of a communication device 1300 provided by this application.

[0205] As Figure 13 shown, the communication device 1300 includes at least one processor 1301. Optionally, the communication device further includes a communication interface 1302.

[0206] When the program instructions involved are executed in the at least one processor 1301, the device 1300 can implement the methods provided in any of the foregoing embodiments and any possible designs therein. Alternatively, the processor 1301 is used to implement the methods provided in any of the foregoing embodiments and any possible designs therein through logic circuits or by executing code instructions.

[0207] The communication interface 1302 can be used to receive program instructions and transmit them to the processor. Alternatively, the communication interface 1302 can be used for the communication device 1300 to communicate and interact with other communication devices, such as interacting control signaling and / or service data, etc. Exemplarily, the communication interface 1302 can be used to receive signals from other devices outside the communication device 1300 and transmit them to the processor 1301 or send signals from the processor 1301 to other communication devices outside the communication device 1300.

[0208] Optionally, the communication interface 1302 can be a code and / or data read / write interface circuit, or the communication interface 1302 can be a signal transmission interface circuit between a communication processor and a transceiver, or a pin of a chip.

[0209] Optionally, the communication device 1300 can further include at least one memory 1303, and the memory 1303 can be used to store the required program instructions and / or data involved. It should be noted that the memory 1303 can exist independently of the processor 1301 or be integrated with the processor 1301. The memory 1303 can be located inside the communication device 1300 or outside the communication device 1300, without limitation.

[0210] Optionally, the communication device 1300 can further include a power supply circuit 13011, and the power supply circuit 13011 can be used to supply power to the processor 1301. The power supply circuit 13011 can be located within the same chip as the processor 1301, or in another chip outside the chip where the processor 1301 is located.

[0211] Optionally, the communication device 1300 can further include a bus 13012, and various parts in the communication device 1300 can be interconnected through the bus 13012.

[0212] In some embodiments, in terms of hardware implementation, those skilled in the art can conceive of the above-mentioned Figure 11 The communication device 110 shown can adopt Figure 13 the form of the communication device 1300 shown.

[0213] As an example, Figure 11 the function / implementation process of the processing module 1120 in Figure 13 can be implemented by the processor 1301 in the communication device 1300 shown calling the computer-executable instructions stored in the memory 1303. Figure 11 the function / implementation process of the transceiver module 1110 in Figure 13 can be implemented by the communication interface 1302 in the communication device 1300 shown.

[0214] It should be noted that, Figure 13 the structure shown does not constitute a specific limitation on the sending device and the receiving device. For example, in some other embodiments of the present application, the sending device and the receiving device may include more or fewer components than shown, or combine certain components, or split certain components, or have different component arrangements. The components shown can be implemented in hardware, software, or a combination of software and hardware.

[0215] When the above communication device is a chip applied to 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 (such as a radio frequency module or an antenna) in the terminal device, and this information is sent by the network device to the terminal device; or, the terminal device chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal device, and this information is sent by the terminal device to the network device.

[0216] When the above communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments. The network device chip receives information from other modules (such as a radio frequency module or an antenna) in the network device, and this information is sent by the terminal device to the network device; or, the network device chip sends information to other modules (such as a radio frequency module or an antenna) in the network device, and this information is sent by the network device to the terminal device.

[0217] It can be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), 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.

[0218] In the embodiments of the present application, the processor may be in a random access memory (RAM), flash memory, read-only memory (ROM), programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), register, hard disk, removable hard disk, 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 may also be a component of the processor. The processor and the storage medium may be located in an ASIC. Additionally, the ASIC may be located in a network device or a terminal device. Of course, the processor and the storage medium may also exist as discrete components in a network device or a terminal device.

[0219] Those skilled in the art should understand that the embodiments of the present application may be provided as a method, system, or computer program product. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer-usable program code.

[0220] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to the application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing device produce a means for implementing the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0221] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction means that implements the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0222] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

[0223] As described above, this is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claimed rights.

Claims

1. A communication method, characterized in that, Including: 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, at least one parameter of the first sub-chirp signal and the second sub-chirp signal being different, the parameter including at least one of the following: starting time-domain resource position, starting frequency-domain resource position, ending time-domain resource position, ending frequency-domain resource position, slope, number of continuous time-domain units, or number of continuous frequency-domain units; Sending first indication information, the first indication information being used to indicate the first chirp signal.

2. The method according to claim 1, wherein The first indication information is used to indicate the generation matrix of the first chirp signal. The elements included in the rows of the generation 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 generation 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 generation 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 generation 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 the generation matrix of the first chirp signal; The first indication information is further used to indicate at least one of the following: the position of the first element, the row of the generation matrix of the first chirp signal, or the column of the generation matrix of the first chirp signal, where the time-domain resource and the frequency-domain resource 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, The generation matrix of the first chirp signal is different from the generation matrix of the second chirp signal, and the receiving devices of the first chirp signal and the second chirp signal are different.

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

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

7. The method according to claim 6, wherein The first index is a plurality of first indexes, the plurality of first indexes corresponding one-to-one to a plurality of the first parameters, and each of the plurality of first parameters being a parameter of a chirp signal.

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

9. The method according to claim 8, wherein The second index is a plurality of second indexes, the plurality of second indexes corresponding one-to-one to a plurality of sequences or a plurality of codebooks.

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

12. A communication method, characterized in that, including: receiving 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: the starting time domain resource, the starting frequency domain resource, 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; determining the first chirp signal according to the first indication information.

13. The method according to claim 12, wherein The first indication information is used to indicate the generation matrix of the first chirp signal. The elements included in the rows of the generation 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 generation 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 generation 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 generation 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, characterized in that, The first indication information is used to indicate the dimension of the generation matrix of the first chirp signal; The first indication information is further used to indicate at least one of the following: the position of the first element, the row of the generation matrix of the first chirp signal, or the column of the generation matrix of the first chirp signal, where the time domain resource and the frequency domain resource 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, The generation matrix of the first chirp signal is different from the generation matrix of the second chirp signal, and the 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 the parameters of the N sub-chirp signals, and the parameters of the N sub-chirp signals include at least one of the following: the time domain resource and / or the frequency domain resource of each sub-chirp signal among the N sub-chirp signals, the slope of each sub-chirp signal among the N sub-chirp signals, the number of continuous time domain units of each sub-chirp signal among the N sub-chirp signals, the number of continuous frequency domain units of each sub-chirp signal among the N sub-chirp signals, the starting time domain resource position and / or the ending time domain resource position of each sub-chirp signal among 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 among the N sub-chirp signals.

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

18. The method according to claim 17, wherein The first index is a plurality of first indices, and the plurality of first indices correspond to a plurality of the first parameters one by one, 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, The 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 indices, and the plurality of second indices correspond to a plurality of sequences or a plurality of codebooks one by one.

21. The method according to claim 12, wherein, The first indication information is used to indicate the 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, It includes a module or unit for performing the method according to any one of claims 1 to 11.

24. A communication device, characterized in that, Includes a module or unit for performing the method according to any one of claims 12 to 22.

25. A communication system, characterized in that, Includes a communication device as described in claims 23 and 24.

26. A computer-readable storage medium, characterized in that, A computer program or instruction is stored on the computer-readable storage medium, and when the computer program or instruction runs on the communication device, the communication device is caused to perform 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 includes a computer program or instruction for performing 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, and the processor reads an instruction stored on a memory through the communication interface and executes 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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