Communication method and related apparatus

Abstract

Embodiments of the present application provide a communication method and a related apparatus, which can be applied to integrated sensing and communication application scenarios such as low-altitude security, intelligent transportation, smart home, social governance, and smart medical care. In the method, a sending side indicates a multiplexing relationship between a demodulation reference signal (DMRS) port and a sensing port by means of first information, a first resource unit corresponding to the DMRS port and a second resource unit corresponding to the sensing port overlapping on a frequency domain resource, and second information comprising a first phase noise tracking reference signal (PTRS) and a sensing signal is sent, and the first PTRS being on an overlapping resource unit. Thus, multiplexing of the PTRS and the sensing signal is implemented, that is, a sensing function is achieved while communication link phase noise estimation is implemented.

Description

A communication method and related device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 13, 2023, with application number 202311713362.0 and application name “A Communication Method and Related Devices”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and related devices. Background Art

[0003] Integrated sensing and communication (ISAC) is widely considered a key application scenario for the next generation of wireless communications (6G). Communication simply means sending information from the transmitter to the receiver. Perception, on the other hand, involves sensing the surrounding environment, the speed of objects, and their distance. The most traditional form of sensing is radar.

[0004] Currently, there are two approaches to overlaying communication and sensing. One approach involves having communication and sensing occupy separate time-frequency resources, ensuring orthogonality between them and preventing interference. However, this approach suffers from a certain loss of spectral efficiency. For traditional communication, this can be seen as allocating a portion of the frequency and time resources used for communication to sensing. The other approach involves directly overlaying the sensing signal on the communication signal, occupying the same time-frequency resources. This approach maintains communication efficiency, as the time-frequency resources used for communication are not allocated to sensing. However, the downside is that the two signals are non-orthogonal, resulting in significant interference.

[0005] How to better meet the orthogonality of communication and perception without sacrificing the spectrum efficiency of communication needs further research. Summary of the Invention

[0006] The embodiments of the present application provide a communication method and related devices, which can better achieve orthogonality between communication and perception without sacrificing the spectrum efficiency of communication.

[0007] In a first aspect, the present application provides a communication method that can be performed by a communication device. Unless otherwise specified, the "communication device" in the present application can refer to the communication device itself (for example, a network device, a terminal device), or a component in the communication device (for example, a processor, a chip, or a chip system, etc.), or a logic module or software that can implement all or part of the functions of the communication device. In this method, first information is sent, and the first information is used to indicate the multiplexing relationship between a demodulation reference signal (DMRS) port and a sensing port, wherein the DMRS port is used to indicate the mapping of the DMRS symbol on the first resource unit, and the sensing port is used to indicate the mapping of the sensing signal symbol on the second resource unit, and the first resource unit and the second resource unit overlap in the frequency domain resource; second information is sent, and the second information includes: DMRS, a first phase noise tracking reference signal (PTRS) and a sensing signal, and the first PTRS is on the overlapping resource unit.

[0008] Based on the above technical solution, the transmitting side uses first information to indicate the multiplexing relationship between the DMRS port and the sensing port, and the first resource unit corresponding to the DMRS port and the second resource unit corresponding to the sensing port overlap in frequency domain resources. The transmitting side then transmits second information containing the first PTRS and the sensing signal, with the first PTRS being located in the overlapping resource unit. This enables multiplexing of the PTRS and the sensing signal, effectively achieving both communication link phase noise estimation and sensing functionality.

[0009] The method can be applied to synaesthesia integration application scenarios such as low-altitude security, smart transportation, smart home, social governance, and smart medical care. The communication device can serve as the transmitter of information.

[0010] The second aspect of the present application provides a communication method, which can be performed by a communication device. Unless otherwise specified, the "communication device" in the present application can refer to the communication device itself (for example, a network device, a terminal device), or a component in the communication device (for example, a processor, a chip, or a chip system, etc.), or a logic module or software that can realize all or part of the functions of the communication device. In this method, first information is received, and the first information is used to indicate the multiplexing relationship between the demodulation reference signal DMRS port and the perception port, wherein the DMRS port is used to indicate the mapping of the DMRS symbol on the first resource unit, and the perception port is used to indicate the mapping of the perception signal symbol on the second resource unit, and the first resource unit and the second resource unit overlap in the frequency domain resource; second information is received, and the second information includes: DMRS, a first phase noise tracking signal PTRS and a perception signal, and the first PTRS is on the overlapping resource unit; the first PTRS signal and the perception signal are determined based on the first information and the second information.

[0011] Based on the above technical solution, the receiving side uses the received first information to determine the multiplexing relationship between the DMRS port and the sensing port, and that the first resource unit corresponding to the DMRS port and the second resource unit corresponding to the sensing port overlap in frequency domain resources. The receiving side then receives second information containing the first PTRS and the sensing signal, with the first PTRS located in the overlapping resource unit. This enables multiplexing of the PTRS and the sensing signal, effectively achieving both communication link phase noise estimation and sensing functionality.

[0012] The method can be applied to synaesthesia integration application scenarios such as low-altitude security, smart transportation, smart home, social governance, and smart medical care. The communication device can serve as a receiving end for information.

[0013] Optionally, in a possible implementation manner of the first aspect or the second aspect, the foregoing multiplexing relationship includes: the sensing port belongs to a DMRS port.

[0014] In this possible implementation, the perception port belongs to the DMRS port to realize perception multiplexing communication port and improve the synaesthesia integration effect.

[0015] Optionally, in a possible implementation manner of the first aspect or the second aspect, the number of the above-mentioned DMRS ports is greater than or equal to the number of sensing ports.

[0016] In this possible implementation, the DMRS port and the perception port can be fully reused to enhance the synaesthesia integration effect.

[0017] Optionally, in a possible implementation manner of the first aspect or the second aspect, the above-mentioned multiplexing relationship includes: some sensing ports belong to DMRS ports.

[0018] In this possible implementation, some perception ports belong to DMRS ports, so that some perception ports can be multiplexed with communication ports to improve the synaesthesia integration effect.

[0019] Optionally, in a possible implementation manner of the first aspect or the second aspect, the number of the above-mentioned DMRS ports is less than the number of sensing ports.

[0020] In this possible implementation, when the number of perception ports is greater than the number of DMRS ports, some perception ports can be used as DMRS ports to achieve multiplexing of communication ports and improve the synaesthesia integration effect.

[0021] Optionally, in a possible implementation of the first aspect or the second aspect, the first information is a first value, and the first value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the first resource unit is located.

[0022] In this possible implementation, the first information specifically indicates that the position of the first PTRS is located on the subcarrier of the first resource unit used by the scheduled DMRS port, which not only ensures orthogonality but also ensures the multiplexing of PTRS and perception, that is, the orthogonality of communication and perception is satisfied at the same time without sacrificing the spectrum efficiency of communication.

[0023] Optionally, in a possible implementation of the first aspect or the second aspect, the above-mentioned first information is a second value, and the second value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the third resource unit is located, and the third resource unit is a resource unit other than the first resource unit and the second resource unit.

[0024] In this possible implementation, the first information specifically indicates that the position of the first PTRS is located on the subcarrier of the first resource unit used by the unscheduled DMRS port, which not only ensures orthogonality but also ensures the multiplexing of PTRS and perception, that is, the orthogonality of communication and perception is satisfied at the same time without sacrificing the spectrum efficiency of communication.

[0025] Optionally, in a possible implementation manner of the first aspect or the second aspect, the second information further includes a second PTRS, and the second PTRS is on the fourth resource unit.

[0026] In this possible implementation, in addition to the first PTRS multiplexed with perception, a second PTRS not multiplexed with perception may also be included.

[0027] Optionally, in a possible implementation manner of the first aspect or the second aspect, the perception signal is related to a perception sequence and a root coefficient.

[0028] In this possible implementation, the perception performance of the perception signal can be influenced by the perception sequence and the root coefficient.

[0029] Optionally, in a possible implementation of the first aspect or the second aspect, the above-mentioned root coefficient is related to at least one of the following: a threshold of the peak sidelobe ratio PSLR, a perceived detection distance range, a perceived detection speed range, a sequence length of the perceived signal, and the number of resource elements RE allocated to the first PTRS signal.

[0030] In this possible implementation, parameters that affect the values ​​of the root coefficients are taken into consideration, and the perception performance can be adjusted by controlling the parameters.

[0031] Optionally, in a possible implementation of the first aspect or the second aspect, the root coefficient satisfies the following formula: Formula:

[0032] Where c1 represents the root coefficient, C represents the speed of light, and T s Represents the sampling interval of the perception signal, M PTRS Represents the number of REs, and D represents the value in the detection distance range.

[0033] In this possible implementation, the performance of the perceived signal can be improved by limiting the value range of the root coefficients.

[0034] Optionally, in a possible implementation manner of the first aspect or the second aspect, the root coefficient is associated with the number of REs, or the root coefficient is related to the detection distance range, or the root coefficient is related to the number of REs and the detection distance range.

[0035] In this possible implementation, the root coefficient value may be affected not only by the number of REs of the first PTRS but also by the detection distance range, or by both the number of REs of the first PTRS and the detection distance range.

[0036] Optionally, in a possible implementation manner of the first aspect or the second aspect, signal energy carried by the above-mentioned overlapping resource units is greater than or equal to a first preset threshold.

[0037] In this possible implementation, by limiting the energy of the reused resource unit, the reuse effect can be made more obvious.

[0038] Optionally, in a possible implementation manner of the first aspect or the second aspect, the index of the overlapping resource unit is greater than or equal to a second preset threshold.

[0039] In this possible implementation, by limiting the index of the multiplexed resource unit, the multiplexed resource unit can be clarified, so that the receiving end can more clearly understand the multiplexed resource unit, thereby quickly determining the first PTRS and the perception signal.

[0040] Optionally, in a possible implementation manner of the first aspect or the second aspect, the second information further includes first data, and the first data includes uplink data and / or downlink data.

[0041] In this possible implementation, the method provided in the present application can be applied not only to uplink transmission, but also to downlink transmission, improving the various application scenarios of the solution.

[0042] The third aspect of the present application provides a communication device, which can be applied to synaesthesia integration application scenarios such as low-altitude security, smart transportation, smart home, social governance, and smart medical care. Specifically, the communication device can be a terminal device or a network device. The communication device can serve as a transmitter of information. The communication device includes: a transceiver unit for sending first information, the first information is used to indicate the multiplexing relationship between the DMRS port and the perception port, wherein the DMRS port is used to indicate the mapping of the DMRS symbol on the first resource unit, and the perception port is used to indicate the mapping of the perception signal symbol on the second resource unit, and the first resource unit and the second resource unit overlap in the frequency domain resources; the transceiver unit is also used to send second information, the second information includes: DMRS, a first phase noise tracking signal PTRS and a perception signal, and the first PTRS is on the overlapping resource unit.

[0043] The fourth aspect of the present application provides a communication device, which can be applied to synaesthesia integration application scenarios such as low-altitude security, smart transportation, smart home, social governance, and smart medical care. Specifically, the communication device can be a network device or a terminal device. The communication device can serve as a receiving end of information. The communication device includes: a transceiver unit for receiving first information, the first information is used to indicate the multiplexing relationship between the demodulation reference signal DMRS port and the perception port, wherein the DMRS port is used to indicate the mapping of the DMRS symbol on the first resource unit, and the perception port is used to indicate the mapping of the perception signal symbol on the second resource unit, and the first resource unit and the second resource unit overlap in the frequency domain resources; the transceiver unit is also used to receive second information, the second information includes: DMRS, a first phase noise tracking signal PTRS and a perception signal, and the first PTRS is on the overlapping resource unit; a processing unit is used to determine the first PTRS signal and the perception signal based on the first information and the second information.

[0044] Optionally, in a possible implementation manner of the third aspect or the fourth aspect, the above-mentioned multiplexing relationship includes: the sensing port belongs to a DMRS port.

[0045] Optionally, in a possible implementation of the third aspect or the fourth aspect, the number of the above-mentioned DMRS ports is greater than or equal to the number of sensing ports.

[0046] Optionally, in a possible implementation manner of the third aspect or the fourth aspect, the above-mentioned multiplexing relationship includes: some sensing ports belong to DMRS ports.

[0047] Optionally, in a possible implementation of the third aspect or the fourth aspect, the number of the above-mentioned DMRS ports is less than the number of sensing ports.

[0048] Optionally, in a possible implementation of the third aspect or the fourth aspect, the first information is a first value, and the first value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the first resource unit is located.

[0049] Optionally, in a possible implementation of the third aspect or the fourth aspect, the above-mentioned first information is a second value, and the second value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the third resource unit is located, and the third resource unit is a resource unit other than the first resource unit and the second resource unit.

[0050] Optionally, in a possible implementation manner of the third aspect or the fourth aspect, the second information further includes a second PTRS, and the second PTRS is on the fourth resource unit.

[0051] Optionally, in a possible implementation manner of the third aspect or the fourth aspect, the perception signal is related to a perception sequence and a root coefficient.

[0052] Optionally, in a possible implementation of the third aspect or the fourth aspect, the above-mentioned root coefficient is related to at least one of the following: a threshold of the peak sidelobe ratio PSLR, a perceived detection distance range, a perceived detection speed range, a sequence length of the perceived signal, and the number of resource elements RE allocated to the first PTRS signal.

[0053] Optionally, in a possible implementation of the third aspect or the fourth aspect, the root coefficient satisfies the following formula: Formula:

[0054] Where c1 represents the root coefficient, C represents the speed of light, and T s Represents the sampling interval of the perception signal, M PTRS Represents the number of REs, and D represents the value in the detection distance range.

[0055] Optionally, in a possible implementation manner of the third aspect or the fourth aspect, the above-mentioned root coefficient is associated with the number of REs, or the root coefficient is related to the detection distance range, or the root coefficient is related to the number of REs and the detection distance range.

[0056] Optionally, in a possible implementation manner of the third aspect or the fourth aspect, signal energy carried by the above-mentioned overlapping resource units is greater than or equal to a first preset threshold.

[0057] Optionally, in a possible implementation manner of the third aspect or the fourth aspect, the index of the overlapping resource unit is greater than or equal to a second preset threshold.

[0058] Optionally, in a possible implementation of the third aspect or the fourth aspect, the second information further includes first data, and the first data includes uplink data and / or downlink data.

[0059] In a fifth aspect, the present application provides a communication device comprising at least one processor coupled to a memory; the memory is used to store programs or instructions; and the at least one processor is used to execute the program or instructions so that any possible implementation method of any aspect of the first aspect can be implemented.

[0060] In a sixth aspect, the present application provides a communication device, comprising at least one processor, wherein the at least one processor is coupled to a memory; the memory is used to store programs or instructions; and the at least one processor is used to execute the program or instructions so that the method described in any possible implementation method of any aspect of the aforementioned second aspect is implemented.

[0061] In a seventh aspect, the present application provides a communication device comprising at least one logic circuit and an input / output interface; the logic circuit and the input / output interface are used to execute the method described in any possible implementation of any aspect of the first aspect.

[0062] In an eighth aspect, the present application provides a communication device comprising at least one logic circuit and an input / output interface; the logic circuit and the input / output interface are used to execute the method described in any possible implementation of any aspect of the second aspect.

[0063] In a ninth aspect of the present application, a communication device is provided, comprising at least one processor configured to implement the functions of the method described in any possible implementation of any one of the first aspects. The communication device may further comprise a memory configured to store program instructions and data necessary for the communication device. Optionally, the communication device further comprises an interface circuit configured to provide program instructions and / or data to the at least one processor.

[0064] In a tenth aspect of the present application, a communication device is provided, comprising at least one processor configured to implement the functions described in any possible implementation of any of the second aspects. The communication device may further comprise a memory configured to store program instructions and data necessary for the communication device. Optionally, the communication device further comprises an interface circuit configured to provide program instructions and / or data to the at least one processor.

[0065] The communication device in aspects 5 to 10 of the present application may be a terminal device or a network device, or a chip or chip system in the terminal device or the network device. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0066] In an eleventh aspect, the present application provides a computer-readable storage medium storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in any possible implementation of any of the first or second aspects above.

[0067] The twelfth aspect of the present application provides a computer program product (or computer program). When the computer program product is executed by the processor, the processor executes the method described in any possible implementation of any one of the first or second aspects above.

[0068] In a thirteenth aspect of the present application, a communication system is provided, which includes the communication device of the first aspect and the communication device of the second aspect. Alternatively, the communication system includes the communication device of the third aspect and the communication device of the fourth aspect, or the communication system includes the communication device of the fifth aspect and the communication device of the sixth aspect, or the communication system includes the communication device of the seventh aspect and the communication device of the eighth aspect, or the communication system includes the communication device of the ninth aspect and the communication device of the tenth aspect.

[0069] Among them, the technical effects brought about by any design method in the third to thirteenth aspects can refer to the technical effects brought about by different design methods in any aspect of the first or second aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] FIG1A is a schematic diagram of a communication system involved in this application;

[0071] FIG1B is another schematic diagram of the communication system involved in this application;

[0072] FIG1C is another schematic diagram of the communication system involved in this application;

[0073] FIG2A is another schematic diagram of the communication system involved in this application;

[0074] FIG2B is another schematic diagram of the communication system involved in this application;

[0075] FIG3A is a schematic diagram of a superposition solution of existing communication and perception involved in this application;

[0076] FIG3B is a schematic diagram of another superposition solution of existing communication and perception involved in this application;

[0077] FIG4 is a flow chart of a communication method provided by the present application;

[0078] FIG5A is a schematic diagram of the structure of the second information provided by this application;

[0079] FIG5B is a schematic diagram of fuzzy functions corresponding to different root indices provided by this application;

[0080] FIG6 is a schematic diagram of a communication device provided by the present application;

[0081] FIG7 is another schematic diagram of a communication device provided by the present application;

[0082] FIG8 is another schematic diagram of a communication device provided by the present application;

[0083] FIG9 is another schematic diagram of the communication device provided in this application. DETAILED DESCRIPTION

[0084] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0085] First, some of the terms used in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0086] 1. Fourier transform related terms and explanations

[0087] Discrete Fourier transform (DFT), fast Fourier transform (FFT), inverse discrete Fourier transform (IDFT), inverse fast Fourier transform (IFFT).

[0088] DFT / FFT: For a sequence of N points {x(n), n=0,...,N-1}, the DFT can be expressed as follows:

[0089] Where γ is a constant, usually γ = 1, or or The above formula can also be understood as converting the time domain sequence {x(n)} into the frequency domain sequence {X(k)}.

[0090] IDFT / IFFT: For an N-point sequence {X(k), k = 0, ..., N-1}, the IDFT can be expressed as follows:

[0091] Where β is a constant, usually β = 1, or or The above formula can also be understood as converting the frequency domain sequence {X(k)} into the time domain sequence {x(n)}.

[0092] 2. Phase noise

[0093] Phase noise refers to the random variations in the phase of a system's output signal (such as various RF devices) caused by various noise factors. It is a key indicator of the frequency stability of frequency standards (such as high-stability crystal oscillators and atomic frequency standards). As communication systems operate at higher frequencies, these higher frequencies lead to more dramatic phase fluctuations, posing challenges to stable data transmission.

[0094] 3. Configuration and pre-configuration

[0095] Configuration refers to the network device / server sending some parameter configuration information or parameter values ​​to the terminal through messages or signaling, so that the terminal can determine the communication parameters or resources during transmission based on these values ​​or information. Pre-configuration is similar to configuration. It can be parameter information or parameter values ​​pre-negotiated between the network device / server and the terminal device, parameter information or parameter values ​​used by the base station / network device or terminal device as specified in the standard protocol, or parameter information or parameter values ​​pre-stored in the base station / server or terminal device. This application does not limit this. Furthermore, these values ​​and parameters can be changed or updated.

[0096] 4. The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean the following situations: A exists alone, B exists alone, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B and / or C" can mean: A exists alone, B exists alone, C exists alone, A and B exist at the same time, A and C exist at the same time, B and C exist at the same time, and A, B and C exist at the same time. In addition, unless otherwise specified, the ordinal numbers "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects and are not used to limit the order, timing, priority or importance of multiple objects.

[0097] In this application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In the various embodiments of this application, and the various methods / designs / implementations in each embodiment, if there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments and the various methods / designs / implementations in each embodiment are consistent and can be referenced to each other. The technical features in different embodiments and the various methods / designs / implementations in each embodiment can be combined to form new embodiments, methods, or implementations according to their inherent logical relationships. The following description of the implementation methods of this application does not constitute a limitation on the scope of protection of this application.

[0098] The communication method provided in the embodiments of the present application can be applied to various scenarios, such as the wireless communication system shown in Figures 1A to 1C, the satellite-terminal communication system shown in Figure 2A, and the inter-satellite communication system shown in Figure 2B. The following describes various scenarios with examples:

[0099] Please refer to Figure 1A, which is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. As shown in Figure 1A, the communication system includes a radio access network (RAN) 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The RAN 100 includes at least one RAN node (such as 110a and 110b in Figure 1A, collectively referred to as 110), and may also include at least one terminal (such as 120a-120j in Figure 1A, collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1A). The terminal 120 is connected to the RAN node 110 via a wireless connection, and the RAN node 110 is connected to the core network 200 via a wireless or wired connection. The core network equipment in the core network 200 and the RAN node 110 in the RAN 100 can be independent and different physical devices, or they can be the same physical device that integrates the logical functions of the core network equipment and the logical functions of the RAN node. Terminals and RAN nodes may be connected to each other via wired or wireless means.

[0100] The RAN 100 may be an Evolved Universal Terrestrial Radio Access (E-UTRA) system, a NR system, or a future radio access system defined in 3GPP. The RAN 100 may also include two or more of the aforementioned different radio access systems. The RAN 100 may also be an open RAN (O-RAN).

[0101] A RAN node, also known as a radio access network device, RAN entity, or access node, is used to help terminals access a communication system wirelessly. In one application scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a fifth-generation (5G) mobile communication system, a next-generation base station in a sixth-generation (6G) mobile communication system, or a base station in a future mobile communication system. A RAN node can be a macro base station (such as 110a in Figure 1A), a micro base station, or an indoor station (such as 110b in Figure 1A), or a relay node or a donor node.

[0102] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing portions of the base station's functions. For example, a RAN node can be a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU implements the base station's radio resource control protocol and packet data convergence protocol (PDCP) functions, as well as the service data adaptation protocol (SDAP) functions. The DU implements the base station's radio link control layer and medium access control (MAC) layer functions, as well as some or all of the physical layer functions. For detailed descriptions of each of the above protocol layers, please refer to the relevant 3GPP technical specifications. The RU can be used to implement the transmission and reception of radio frequency signals. The CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as in a baseband unit (BBU). The RU can be included in radio frequency equipment, such as a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0103] In different systems, RAN nodes may have different names. For example, in an O-RAN system, the CU may be called an open CU (O-CU), the DU may be called an open DU (O-DU), and the RU may be called an open RU (O-RU). The RAN nodes in the embodiments of the present application may be implemented by software modules, hardware modules, or a combination of software modules and hardware modules. For example, the RAN node may be a server loaded with the corresponding software module. The embodiments of the present application do not limit the specific technology and specific device form used by the RAN node.

[0104] In addition, a RAN node can also be referred to as a network device. A network device is a device deployed in a radio access network to provide wireless communication functions for terminal devices. Network devices may include various forms of macro base stations, micro base stations (also known as small stations), relay stations, access points, etc. In systems using different radio access technologies, the names of network devices may be different, such as eNB or eNodeB (evolutionary NodeB) in Long Term Evolution (LTE). A network device may also be a wireless controller in a cloud radio access network (CRAN) scenario. A network device may also be a base station device in a future 5G network or a network device in a future evolved PLMN network. A network device may also be a wearable device or an in-vehicle device. A network device may also be a transmission and reception point (TRP). In addition, in a network structure, a network device may include a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device including a CU node and a DU node. For ease of description, the following description uses a base station as an example of a RAN node.

[0105] A terminal is a device with wireless transceiver capabilities that can send signals to a base station or receive signals from a base station. A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the terminal.

[0106] Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0107] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1A can be configured as a mobile base station. To terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station. However, to base station 110a, 120i is a terminal, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur via a base station-to-base station interface protocol. In this case, 120i is also a base station relative to 110a. Therefore, base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1A can be referred to as communication devices with base station functionality, while 120a-120j in Figure 1A can be referred to as communication devices with terminal functionality.

[0108] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized spectrum, or both; communication can be carried out through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0109] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem that includes the base station functions. The control subsystem that includes the base station functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or modem) in the terminal, or by a device that includes the terminal functions.

[0110] It can be understood that the RAN 100 described above includes at least one RAN node (such as 110 a and 110 b in FIG. 1A , collectively referred to as 110 ), and may also include at least one terminal (such as 120 a - 120 j in FIG. 1A , collectively referred to as 120 ).

[0111] In one possible implementation, the communication system shown in FIG1A may also be as shown in FIG1B , that is, including a RAN node 110 and multiple terminals (such as 120A and 120B in FIG1B ). In this case, a single RAN node can transmit data or control signaling to a single terminal or multiple terminals.

[0112] In another possible implementation, the communication system shown in FIG1A may also be as shown in FIG1C , that is, include multiple RAN nodes (such as 110A, 110B, and 110C in FIG1C ) 110 and a terminal 120. In this case, multiple RAN nodes may also simultaneously transmit data or control signaling for a single terminal.

[0113] 2A is a schematic diagram of a satellite and terminal communication system used in an embodiment of the present application. The communication system includes a satellite base station 201 , a terminal 202 , and a terminal 203 .

[0114] Satellite base station 201 provides communication services to terminal devices (e.g., terminal 202 and terminal 203). Satellite base station 201 transmits downlink data to the terminal devices. The terminal devices transmit uplink data to satellite base station 201. For a description of the terminal devices, refer to the description in FIG. 1A above and will not be repeated here.

[0115] 2B is a schematic diagram of an inter-satellite communication system used in an embodiment of the present application. The communication system includes satellite 1 and satellite 2.

[0116] Satellite 1 includes a communication module, a transceiver antenna, an acquisition, pointing, and tracking (APT) module, and an APT transmitter / receiver module. Satellite 2 also includes a communication module, a transceiver antenna, an APT module, and an APT transmitter / receiver module. The communication module and transceiver antenna are also referred to as the communication subsystem, which is responsible for transmitting intersatellite information and is the core of the intersatellite communication system. The APT module and APT transmitter / receiver module are also referred to as the APT system. The APT system is responsible for acquisition, alignment, and tracking between satellites. It determines the direction of incoming signals for acquisition and adjusts the transmitted signal's aiming direction for alignment. Throughout the communication process, alignment and acquisition are continuously adjusted for tracking.

[0117] It can be understood that the several communication systems in Figures 1A to 2B above are just examples. In actual applications, the communication method provided in the embodiments of the present application can be applied to B5G, wireless fidelity (WIFI) systems, etc., and no specific limitations are made here.

[0118] Integrated sensing and communication (ISAC) is widely considered a key application scenario for the next generation of wireless communications (6G). Communication simply means sending information from the transmitter to the receiver. Perception, on the other hand, involves sensing the surrounding environment, the speed of objects, and their distance. The most traditional form of sensing is radar.

[0119] Currently, there are two approaches to overlaying communication and sensing. One approach, shown in Figure 3A, involves communication and sensing occupying separate time-frequency resources, ensuring orthogonality between the two, meaning there's no interference. However, this approach suffers from a loss of spectral efficiency. For traditional communication, a portion of the frequency and time resources for communication is allocated to sensing. The other approach, shown in Figure 3B, directly overlays the sensing signal on the communication signal, occupying the same time-frequency resources. This approach maintains communication efficiency, as the time-frequency resources used for communication are not allocated to sensing. However, the downside is that the two signals are non-orthogonal, resulting in significant interference.

[0120] However, existing solutions cannot simultaneously meet the orthogonality of communication and sensing without sacrificing the spectrum efficiency of communication.

[0121] In order to solve the above technical problems, an embodiment of the present application provides a communication method and related devices, in which the sending side indicates the multiplexing relationship between the demodulation reference signal (DMRS) port and the perception port through first information, and the first resource unit corresponding to the DMRS port and the second resource unit corresponding to the perception port overlap in the frequency domain resources. And second information containing a first phase noise tracking signal (PTRS) and a perception signal is sent, and the first PTRS is on the overlapping resource unit. In this way, the multiplexing of PTRS and perception signals is achieved, that is, the perception function is satisfied while the communication link phase noise estimation is achieved.

[0122] The communication method provided by the embodiment of the present application is described below. The method can be performed by a communication device. Unless otherwise specified, the "communication device" in this application can refer to the communication device itself (for example, a network device, a terminal device), or a component in the communication device (for example, a processor, a chip, or a chip system, etc.), or a logic module or software that can implement all or part of the functions of the communication device. The method is described below only from the perspective of the transmitting end and the receiving end. For example, the transmitting end is a network device and the receiving end is a terminal device. This situation can be understood as downlink data transmission. For another example, the transmitting end is a terminal device and the receiving end is a network device. This situation can be understood as uplink data transmission.

[0123] The communication method provided in the embodiments of the present application can be applied to synaesthesia integration application scenarios such as low-altitude security, smart transportation, smart home, social governance, and smart medical care.

[0124] Please refer to Figure 4, which is a flow chart of a communication method provided in an embodiment of the present application. The method may include steps 401 to 403. Steps 401 to 403 can be performed by a terminal device or a network device, or by some components in the terminal device or the network device (such as a processor, a chip or a chip system, etc.), or by a logic module or software that can realize all or part of the functions of the terminal device. The following description is taken as an example of execution by a terminal device or a network device. The processing performed by a single execution subject in steps 401 to 403 can also be divided into executions by multiple execution subjects, and these execution subjects can be logically and / or physically separated. For example, the processing performed by the network device can be divided into executions by at least one of the CU, DU and RU. Steps 401 to 403 are described in detail below.

[0125] Step 401: The sending end sends first information.

[0126] The sending end sends the first information to the receiving end. Correspondingly, the receiving end receives the first information sent by the sending end.

[0127] The first information is used to indicate the multiplexing relationship between the demodulation reference signal (DMRS) port and the sensing port. The DMRS port is used to indicate the mapping of DMRS symbols on the first resource unit, and the sensing port is used to indicate the mapping of sensing signal symbols on the second resource unit, and the first resource unit and the second resource unit overlap in frequency domain resources. The DMRS port can be understood as the port used to transmit the DMRS, and the sensing port can be understood as the port used to transmit the sensing signal.

[0128] The above-mentioned first information is used to indicate the multiplexing relationship between the DMRS port and the perception port. In some scenarios, it can also be understood that the first information indicates the position of the first phase noise tracking reference signal (PTRS), which can be used by the receiving end to subsequently determine the first PTRS and the perception signal. How the first information indicates the position will be described later and will not be expanded here. The multiplexing relationship can also be understood as the DMRS port being the same as some or all of the perception ports, that is, the first PTRS and the perception signal are sent out through the same antenna port.

[0129] The first information can also be understood as configuration information or indication information. The first resource unit and the second resource unit overlap in frequency domain resources, which can also be understood as resource units that overlap with the first resource unit and the second resource unit. It can also be understood as the resource of the sensing port multiplexing DMRS port. It can also be understood as all or part of the sensing port multiplexing DMRS ports.

[0130] In an embodiment of the present application, the above-mentioned overlapping resource units may meet at least one of the following conditions: the signal energy carried by the overlapping resource units is greater than or equal to a first preset threshold, the overlapping resource unit index is greater than or equal to a second preset threshold, etc.

[0131] Optionally, when the first information is a first value, the first information is used to indicate that the sensing port is a DMRS port. When the first information is a second value, the first information is used to indicate that some sensing ports are DMRS ports. Alternatively, when the first information is a first value, the first information is used to indicate that the first PTRS is in the first position. When the first information is a second value, the first information is used to indicate that the first PTRS is in the second position.

[0132] It is understood that the first information may also indicate different modes, and the location calculation method of the first PTRS is different in different modes. For example, when the first information is a first value, the first information is used to indicate the first mode. When the first information is a second value, the first information is used to indicate the second mode.

[0133] Exemplarily, the first information may use 1 bit to indicate the multiplexing relationship between the DMRS port and the perception port or the position of the first PTRS. For example, the first information being "1" is used to indicate that the perception port belongs to the DMRS port, and the first information being "0" is used to indicate that some perception ports belong to the DMRS port. For another example, the first information being "1" is used to indicate that the first PTRS is in the first position, and the first information being "0" is used to indicate that the first PTRS is in the second position.

[0134] Of course, the first information may be "0" to indicate that the sensing port belongs to a DMRS port, and the first information may be "1" to indicate that some sensing ports belong to DMRS ports. For another example, the first information may be "0" to indicate that the first PTRS is in the first position, and the first information may be "1" to indicate that the first PTRS is in the second position.

[0135] Furthermore, when the first information is used to indicate that the sensing port belongs to a DMRS port, the number of DMRS ports is often greater than or equal to the number of sensing ports. When the first information is used to indicate that some sensing ports belong to a DMRS port, the number of DMRS ports is often less than the number of sensing ports.

[0136] In the embodiment of the present application, the first information may have multiple situations, which are described below respectively:

[0137] In the first type, the first information is used to indicate that a first PTRS is also placed on the placement where the amplitude of the perception signal is greater than or equal to a preset amplitude.

[0138] This situation can be understood as determining the placement of the sensing signal based on whether the sensing signal is a constant modulus signal. A constant modulus signal refers to a sensing signal whose amplitude does not change with frequency or timing, while a non-constant modulus signal refers to a sensing signal whose amplitude does change with frequency or timing.

[0139] In a possible implementation, the sensing signal is a constant modulus signal, and the positions of the sensing signal and the first PTRS can directly follow the PTRS positions of the existing NR.

[0140] In another possible implementation, if the sensing signal is a non-constant modulus signal, the sensing signal and the first PTRS may be located at a position where the sensing signal amplitude is greater than or equal to a preset amplitude. The preset amplitude may be set as needed and may be a fixed value or an average amplitude of the sensing signal, and is not specifically limited herein.

[0141] For example, taking the preset amplitude as the average amplitude as an example, the above two can be described by the following Table 1:

[0142] Table 1

[0143] Second, the first information is used to indicate that a perception signal is also placed at a position with energy greater than or equal to a preset energy within the symbol occupied by the first PTRS.

[0144] This situation can be understood as position determination under power boosting, that is, the signal energy carried by the overlapping resource units is greater than or equal to the preset energy.

[0145] The above-mentioned preset energy can be set according to actual needs, and can be a fixed value, or can be the average energy of the signal carried in the first PTRS symbol, etc., and is not limited here.

[0146] Optionally, the sensing signal and the first PTRS signal during downlink transmission may satisfy the following formula 1: Formula 1: y k =h k αs sen,k e jθ +noise;

[0147] Among them, h k represents the channel coefficient of the kth subcarrier, s sen,k represents the perceived signal, α represents the power factor (or power boost multiple), and noise represents the noise. sen,k As the first PTRS, phase noise θ is estimated.

[0148] For example, taking the preset energy as the average energy, |αs sen,k|≤A, where A represents the average energy of the signal carried in the first PTRS symbol.

[0149] In one possible implementation, |αs sen,k1 |=A, k1∈{Ω}, Ω is the subcarrier index of the sensing port, then the k1 subcarrier where the sensing signal is located is placed in the first PTRS.

[0150] In another possible implementation, |αs sen,k2 |<A, k2∈{Ω}, then the k2 subcarrier where the perception signal is located does not place the first PTRS.

[0151] Third, the first information is used to indicate the starting index of the position of the first PTRS.

[0152] This situation is further divided into multiple sub-situations, which are described below:

[0153] 1. The first information is a first value, and the first value is used to indicate that the first PTRS is at the first position.

[0154] In this case, the first information may be understood as indicating the first mode. The first PTRS at the first position may be understood as the first PTRS being located on a subcarrier in the first resource unit. It may also be understood as the first PTRS being located on a subcarrier of a scheduled DMRS port.

[0155] Specifically, the first value may be used to indicate that the first PTRS is on a subcarrier corresponding to a specific index in the first resource unit. The specific index in the first resource unit may be set according to actual needs, for example, a minimum index, a maximum index, an intermediate index, etc.

[0156] For example, the first information is a first value, and the first value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the first resource unit is located.

[0157] Exemplarily, in this case, the position index of the first PTRS is as shown in the following formula 2: Formula 2:

[0158] in, p=min{schedeled DMRS port index} indicates that the subcarrier starting position of the first PTRS is attached to the scheduled DMRS port, that is, the sensing port belongs to the currently scheduled DMRS port. In this case, the starting position is determined by the minimum DMRS port index.

[0159] K PTRSIndicates the number of resource elements (REs) of a first PTRS, such as 2, 4, etc.

[0160] i is a positive integer, i=0,1,2...

[0161] It indicates that an RB has 12 subcarriers based on the RB reference. It is understandable that other references may be used as the interval, and an RB may have more or fewer subcarriers, which is not limited here.

[0162] For example, the number of DMRS ports is 4, namely port 0, port 1, port 2, and port 3. The first PTRS is located in port 0, one or part of the subcarriers of port 0 carries the first PTRS, and another or another part of the subcarriers carries the perception signal.

[0163] 2. The first information is a second value, and the second value is used to indicate that the first PTRS is at a second position.

[0164] In this case, it can also be understood that the first information is used to indicate the second mode. The first PTRS in the second position can be understood as the first PTRS being located on a subcarrier in a third resource unit, where the third resource unit is a resource unit other than the first resource unit and the second resource unit. It can also be understood that the first PTRS is located on a subcarrier of a non-scheduled (or unscheduled) DMRS port.

[0165] Specifically, the second value can be used to indicate that the first PTRS is on the subcarrier corresponding to the specific index in the third resource unit. Similar to the first case, the specific index in the third resource unit can be set according to actual needs, for example, it can be a minimum index, a maximum index, an intermediate index, etc.

[0166] Exemplarily, in this case, the position index of the first PTRS is as shown in the following formula 3: Formula 3:

[0167] in, p = min{not scheduled DMRS port index} indicates that the starting position of the first PTRS subcarrier is attached to an unscheduled DMRS port, i.e., the sensing port does not belong to the currently scheduled DMRS port. In this case, the starting position is determined by the minimum DMRS port index. The remaining parameters can be referred to the description in the above formula 2 and are not repeated here.

[0168] For example, the number of DMRS ports is 1: port 0. The first PTRS is located in a port other than port 0 (eg, port 1), one or part of the subcarriers of port 1 carries the first PTRS, and another or another part of the subcarriers carries the sensing signal.

[0169] In the embodiment of the present application, the sending end may send the first information in a manner of sending it to a designated receiving end or in a broadcast manner, etc., which is not specifically limited here.

[0170] In one possible implementation, the sending end is a network device, and the receiving end is a terminal device. The network device sends first information to the terminal device. Correspondingly, the terminal device receives the first information sent by the network device.

[0171] In this case, the network device sending the first information to the terminal device can be understood as a process of configuring the first information for the terminal device. Specifically, the network device can configure the first information for the terminal device by configuration or pre-configuration, wherein configuration refers to a network device such as a base station or a server sending configuration information of some parameters or parameter values ​​to the terminal device through a message or signaling, so that the terminal device determines the communication parameters or resources during transmission based on these values ​​or information. Pre-configuration is similar to configuration. It can be a way for a network device such as a base station or a server to send parameter information or values ​​to a terminal device through a communication link or carrier; it can also be a way to define the corresponding parameters or parameter values ​​(for example, clearly specifying the parameter values ​​in the standard), or by writing the relevant parameters or values ​​to the terminal device in advance. This application does not limit this. Furthermore, these values ​​and parameters can be changed or updated.

[0172] Optionally, the first information can be carried in at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) in media access control information, downlink control information (DCI), and other messages / signaling, which are not limited here.

[0173] In another possible implementation, the sending end is a terminal device, and the receiving end is a network device. The terminal device sends first information to the network device. Correspondingly, the network device receives the first information sent by the terminal device.

[0174] Optionally, the first information may be carried in uplink information.

[0175] In addition, the triggering method of this step can be active or passive, and the specific triggering is not limited here. For example, the process of the network device sending the first information to the terminal device can be triggered based on a request from the terminal device. For another example, the network device actively sends the first information to the terminal device. For another example, the process of the terminal device sending the first information to the network device can be triggered based on a request from the network device. For another example, the terminal device actively sends the first information to the network device.

[0176] Step 402: The sending end sends the second information.

[0177] The sending end sends the second information to the receiving end. Correspondingly, the receiving end receives the second information sent by the sending end.

[0178] The second information includes: a DMRS, a first PTRS, and a sensing signal, and the first PTRS is on a resource unit where the first resource unit and the second resource unit overlap.

[0179] Optionally, the second information may further include a second PTRS, and the second PTRS is on the fourth resource unit. Alternatively, it can be understood that there is a second PTRS that is not multiplexed with the perception.

[0180] In the embodiment of the present application, the sending end may send the second information in a manner of sending it to a designated receiving end or in a broadcast manner, etc., which is not specifically limited here.

[0181] In one possible implementation, the transmitting end is a network device, and the receiving end is a terminal device. The network device transmits the second information to the terminal device. Correspondingly, the terminal device receives the second information transmitted by the network device. This scenario can be understood as a downlink transmission process.

[0182] Optionally, the first information in this case may also be referred to as a downlink frame. In addition to the above-mentioned DMRS, the first PTRS and the perception signal, the downlink frame may also include downlink data.

[0183] Exemplarily, the second information is shown in FIG5A . In this example, there are two DMRS ports, namely DMRS port 1 and DMRS port 2. The first PTRS signal and the perception signal can be placed on the subcarrier corresponding to DMRS port 1. These subcarriers meet the requirements of the first information.

[0184] Optionally, the sensing signal and the first PTRS signal during downlink transmission may satisfy the following formula 4: Formula 4: y k =h k αs sen,k e jθ +noise;

[0185] Among them, hk represents the channel coefficient of the kth subcarrier, s sen,k represents the perceived signal, α represents the power factor, and noise represents the noise. sen,k As the first PTRS, phase noise θ is estimated.

[0186] The perceived signal in this case is the signal after the original channel is restored:

[0187] In another possible implementation, the transmitting end is a terminal device, and the receiving end is a network device. The terminal device sends the second information to the network device. Correspondingly, the network device receives the second information sent by the terminal device. This scenario can be understood as an uplink transmission process.

[0188] Optionally, the first information in this case may also be referred to as an uplink frame. In addition to the above-mentioned DMRS, the first PTRS and the perception signal, the uplink frame may also include uplink data.

[0189] Optionally, the perception signal and the first PTRS signal during uplink transmission may satisfy the following formula 5: Formula 5:

[0190] in, represents the perceived signal, α represents the power factor, and noise represents the noise. sen,n As the first PTRS, estimate the phase noise θ n .

[0191] The perceived signal in this case is the signal after the original channel is restored:

[0192] Similar to step 401, the triggering method of this step can be active or passive, and the specific triggering is not limited here. For example, the process of the network device sending the second information to the terminal device can be triggered based on a request from the terminal device. For another example, the network device actively sends the second information to the terminal device. For another example, the process of the terminal device sending the second information to the network device can be triggered based on a request from the network device. For another example, the terminal device actively sends the second information to the network device.

[0193] The present application does not limit the waveform used for the second information, which may be cyclic prefix-orthogonal frequency division multiplexing (CP-DFDM) or discrete fourier transform spread OFDM (DFT-s-OFDM), etc., and is not specifically limited here.

[0194] In step 403 , the receiving end determines a first PTRS signal and a perception signal based on the first information and the second information.

[0195] After receiving the first information and the second information, the receiving end determines the first PTRS signal and the perception signal based on the first information and the second information.

[0196] Optionally, the receiving end may determine the first PTRS signal and the perception signal from the second information according to various situations of the first information.

[0197] For example, if the first information is a first value, the receiving end can determine that the first PTRS signal is at the first position based on the first value. For another example, if the first information is a second value, the receiving end can determine that the first PTRS signal is at the second position based on the second value. For another example, if the first information is a first value, the receiving end can determine the position of the first PTRS signal based on the aforementioned formula 1. For another example, if the first information is a second value, the receiving end can determine the position of the first PTRS signal based on the aforementioned formula 2, and so on.

[0198] In this embodiment of the present application, the transmitting side uses first information to indicate the multiplexing relationship between the DMRS port and the sensing port, and the first resource unit corresponding to the DMRS port and the second resource unit corresponding to the sensing port overlap in frequency domain resources. Second information containing the first PTRS and the sensing signal is then transmitted, with the first PTRS being located in the overlapping resource unit. This enables multiplexing of the PTRS and the sensing signal, thus achieving both communication link phase noise estimation and sensing functionality.

[0199] In addition, the embodiment of the present application further provides a sequence design of a perception signal, which can be applied to the perception signal in the embodiment shown in FIG4 , and is described below:

[0200] In the embodiments of the present application, the perception signal is described as using a Zadoff-Chu (ZC) sequence as an example. In actual applications, the perception signal may also use a pseudo-random sequence, a phase modulation sequence, a Golay sequence, etc., which is not limited here.

[0201] The perception signal is related to the perception sequence and the root coefficient (root), which can also be called the root index.

[0202] Optionally, the downlink perception signal can be expressed as k represents the frequency, or can be understood as the number of REs. The uplink perception signal can be expressed as n represents the time index. c1 represents the root, which affects the performance of perceptual signals.

[0203] Since different roots of ZC sequences will directly lead to different blur functions, for example, FIG5B shows a schematic diagram of blur functions corresponding to different root indices. That is, the root index will affect the perceptual performance.

[0204] From the perspective of the ambiguity function, the peak to sidelobe level ratio (PSLR) is usually used as a parameter of perceptual performance:

[0205] That is, PSLR can be expressed as:

[0206] Among them, f d Indicates the Doppler of the detected object, M PTRS Indicates the number of REs in the first PTRS.

[0207] Alternatively, it can be understood that the above root coefficients are related to at least one of the following: a PSLR threshold, a perceived detection distance range, a perceived detection speed range, a sequence length of a perceived signal, the number of resource elements RE allocated to the first PTRS signal, and the like.

[0208] Furthermore, by limiting the value range of the root coefficients, the performance of the perceived signal can be improved. For example, the root coefficients satisfy the following formula 6: Formula 6:

[0209] Among them, c1 represents the root coefficient, which is generally a positive integer, C represents the speed of light, T s Represents the sampling interval of the perception signal, M PTRS Represents the number of REs, and D represents the value in the detection distance range.

[0210] In one possible implementation, the root coefficient is associated with the number of REs of the first PTRS.

[0211] For example, when the number of REs in the first PTRS is 16, the root coefficient is 3. For another example, when the number of REs in the first PTRS is 18, the root coefficient is 9. For another example, when the number of REs in the first PTRS is 32, the root coefficient is 13. For another example, when the number of REs in the first PTRS is 64, the root coefficient is 21.

[0212] For example, in this case, the correlation between the root coefficient and the number of REs of the first PTRS may be as shown in Table 2:

[0213] Table 2

[0214] In another possible implementation, the root coefficient is related to the detection distance range.

[0215] It is understandable that the detection distance range can be set according to actual needs, which can be meters, centimeters, millimeters, etc. In addition, different detection range distances can be separated by several meters, tens of meters, hundreds of meters, several centimeters, tens of centimeters, hundreds of centimeters, several millimeters, tens of millimeters, hundreds of millimeters, etc.

[0216] For example, when the detection distance range is less than 100 meters, the root coefficient is 7. For another example, when the detection distance range is between 100 meters and 200 meters, the root coefficient is 11. For another example, when the detection distance range is less than 300 meters, the root coefficient is 7. For another example, when the detection distance range is between 300 meters and 800 meters, the root coefficient is 11.

[0217] For example, the correlation between the root coefficient and the detection distance range in this case can be shown in Table 3:

[0218] Table 3

[0219] In another possible implementation, the root coefficient is related to the number of REs and the detection distance range.

[0220] For example, when the detection distance range is 0-300 meters and the number of REs in the first PTRS is 16, the root coefficient is 3. For another example, when the detection distance range is 300-800 meters and the number of REs in the first PTRS is 16, the root coefficient is 7. For another example, when the detection distance range is 0-300 meters and the number of REs in the first PTRS is 18, the root coefficient is 5. For another example, when the detection distance range is 300-800 meters and the number of REs in the first PTRS is 18, the root coefficient is 11. For another example, when the detection distance range is 0-300 meters and the number of REs in the first PTRS is 32, the root coefficient is 7. For another example, when the detection distance range is 300-800 meters and the number of REs in the first PTRS is 32, the root coefficient is 15. For another example, when the detection distance range is 0-300 meters and the number of REs of the first PTRS is 64, the root coefficient is 23. For another example, when the detection distance range is 300-800 meters and the number of REs of the first PTRS is 64, the root coefficient is 29.

[0221] For example, in this case, the correlation between the root coefficient, the number of REs, and the detection distance range can be shown in Table 4:

[0222] Table 4

[0223] It is understandable that the above-mentioned root coefficient values ​​are only examples. In actual applications, the root coefficients may also have other values, or may be limited by other parameters, which are not specifically limited here.

[0224] In an embodiment of the present application, by associating the root coefficient with the above-mentioned parameters (for example, the PSLR threshold, the perceived detection distance range, the perceived detection speed range, the sequence length of the perceived signal, the number of REs allocated to the first PTRS signal, etc.), or understanding it as limiting the value of the root coefficient by parameters, the perceived PSLR can be made monotonically increasing, that is, the perception performance is gradually improved.

[0225] The communication method in the embodiment of the present application is described above. The communication device in the embodiment of the present application is described below. Please refer to Figure 6. An embodiment of a communication device 600 in the embodiment of the present application can implement the functions of the communication device in the above method embodiment (the communication device is a network device or a terminal device), and therefore can also achieve the beneficial effects of the above method embodiment. In the embodiment of the present application, the communication device 600 can be a communication device, or it can be an integrated circuit or component inside the communication device, such as a chip. The communication device 600 includes: a transceiver unit 601. Optionally, the communication device 600 may also include a processing unit 602.

[0226] In one possible implementation, the communication device 600 is the transmitting end in the embodiments shown in FIG. 1A to FIG. 5B . In this case, the functions of the various units are as follows:

[0227] The transceiver unit 601 is configured to send first information, where the first information is used to indicate a multiplexing relationship between a demodulation reference signal (DMRS) port and a sensing port, wherein the DMRS port is used to indicate mapping of DMRS symbols on a first resource unit, and the sensing port is used to indicate mapping of sensing signal symbols on a second resource unit, and the first resource unit and the second resource unit overlap in frequency domain resources;

[0228] The transceiver unit 601 is further configured to send second information, where the second information includes: a DMRS, a first phase noise tracking signal PTRS, and a sensing signal, where the first PTRS is on an overlapping resource unit.

[0229] Optionally, the multiplexing relationship includes: the sensing port belongs to a DMRS port.

[0230] Optionally, the number of DMRS ports is greater than or equal to the number of sensing ports.

[0231] Optionally, the multiplexing relationship includes: some sensing ports belong to DMRS ports.

[0232] Optionally, the number of DMRS ports is smaller than the number of sensing ports.

[0233] Optionally, the first information is a first value, and the first value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the first resource unit is located.

[0234] Optionally, the first information is a second value, and the second value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the third resource unit is located, and the third resource unit is a resource unit other than the first resource unit and the second resource unit.

[0235] Optionally, the second information further includes a second PTRS, and the second PTRS is on the fourth resource unit.

[0236] Optionally, the perception signal is related to the perception sequence and the root coefficients.

[0237] Optionally, the root coefficient is related to at least one of the following: a threshold of a peak sidelobe ratio PSLR, a perceived detection distance range, a perceived detection speed range, a sequence length of a perceived signal, and the number of resource elements RE allocated to the first PTRS signal.

[0238] Optionally, the root coefficient satisfies the following formula: Formula:

[0239] Where c1 represents the root coefficient, C represents the speed of light, and T s Represents the sampling interval of the perception signal, M PTRS Represents the number of REs, and D represents the value in the detection distance range.

[0240] Optionally, the root coefficient is associated with the number of REs, or the root coefficient is related to the detection distance range, or the root coefficient is related to the number of REs and the detection distance range.

[0241] Optionally, signal energy carried by the overlapping resource units is greater than or equal to a first preset threshold.

[0242] Optionally, the index of the overlapping resource unit is greater than or equal to a second preset threshold.

[0243] Optionally, the second information further includes first data, and the first data includes uplink data and / or downlink data.

[0244] In this embodiment, the operations performed by each unit in the communication device are similar to the description of the transmitting end in the embodiments shown in Figures 1A to 5B above, and will not be repeated here.

[0245] In this embodiment, the transceiver unit 601 uses first information to indicate the multiplexing relationship between the DMRS port and the sensing port, and the first resource unit corresponding to the DMRS port and the second resource unit corresponding to the sensing port overlap in frequency domain resources. The transceiver unit 601 transmits second information containing the first PTRS and the sensing signal, with the first PTRS being located in the overlapping resource unit. This enables multiplexing of the PTRS and the sensing signal, effectively achieving both communication link phase noise estimation and sensing functionality.

[0246] In another possible implementation, the communication device 600 is the receiving end in the embodiment shown in FIG. 1A to FIG. 5B . In this case, the functions of the various units are as follows:

[0247] The transceiver unit 601 is configured to receive first information, where the first information is used to indicate a multiplexing relationship between a demodulation reference signal (DMRS) port and a sensing port, wherein the DMRS port is used to indicate mapping of DMRS symbols on a first resource unit, and the sensing port is used to indicate mapping of sensing signal symbols on a second resource unit, and the first resource unit and the second resource unit overlap in frequency domain resources;

[0248] The transceiver unit 601 is further configured to receive second information, where the second information includes: a DMRS, a first phase noise tracking signal PTRS, and a sensing signal, where the first PTRS is on an overlapping resource unit;

[0249] The processing unit 602 is configured to determine a PTRS signal and a perception signal based on the first information and the second information.

[0250] Optionally, the multiplexing relationship includes: the sensing port belongs to a DMRS port.

[0251] Optionally, the number of DMRS ports is greater than or equal to the number of sensing ports.

[0252] Optionally, the multiplexing relationship includes: some sensing ports belong to DMRS ports.

[0253] Optionally, the number of DMRS ports is smaller than the number of sensing ports.

[0254] Optionally, the first information is a first value, and the first value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the first resource unit is located.

[0255] Optionally, the first information is a second value, and the second value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the third resource unit is located, and the third resource unit is a resource unit other than the first resource unit and the second resource unit.

[0256] Optionally, the second information further includes a second PTRS, and the second PTRS is on the fourth resource unit.

[0257] Optionally, the perception signal is related to the perception sequence and the root coefficients.

[0258] Optionally, the root coefficient is related to at least one of the following: a threshold of a peak sidelobe ratio PSLR, a perceived detection distance range, a perceived detection speed range, a sequence length of a perceived signal, and the number of resource elements RE allocated to the first PTRS signal.

[0259] Optionally, the root coefficient satisfies the following formula: Formula:

[0260] Where c1 represents the root coefficient, C represents the speed of light, and T s Represents the sampling interval of the perception signal, M PTRS Represents the number of REs, and D represents the value in the detection distance range.

[0261] Optionally, the root coefficient is associated with the number of REs, or the root coefficient is related to the detection distance range, or the root coefficient is related to the number of REs and the detection distance range.

[0262] Optionally, signal energy carried by the overlapping resource units is greater than or equal to a first preset threshold.

[0263] Optionally, the index of the overlapping resource unit is greater than or equal to a second preset threshold.

[0264] Optionally, the second information further includes first data, and the first data includes uplink data and / or downlink data.

[0265] In this embodiment, the operations performed by each unit in the communication device are similar to the description of the receiving end in the embodiments shown in Figures 1A to 5B above, and will not be repeated here.

[0266] In this embodiment, the transceiver unit 601 uses the received first information to determine the multiplexing relationship between the DMRS port and the sensing port, and that the first resource unit corresponding to the DMRS port and the second resource unit corresponding to the sensing port overlap in frequency domain resources. The transceiver unit 601 then receives the second information containing the first PTRS and the sensing signal, with the first PTRS being located in the overlapping resource unit. This enables multiplexing of the PTRS and the sensing signal, effectively achieving both communication link phase noise estimation and sensing functionality.

[0267] Please refer to Fig. 7, which is another schematic structural diagram of a communication device 700 provided in this application. The communication device 700 includes a logic circuit 701 and an input / output interface 702. The communication device 700 may be a chip or an integrated circuit.

[0268] The transceiver unit 601 shown in FIG6 may be a communication interface, which may be the input / output interface 702 in FIG7 , which may include an input interface and an output interface. Alternatively, the communication interface may be a transceiver circuit, which may include an input interface circuit and an output interface circuit. The processing unit 602 shown in FIG6 may be the logic circuit 701 in FIG7 .

[0269] Optionally, when the communication device is the transmitting end in the aforementioned embodiment, the input / output interface 702 is used for at least one of the following: sending the first information, sending the second information, etc.

[0270] Optionally, when the communication device is the receiving end in the aforementioned embodiment, the input / output interface 702 is configured to at least one of: receive first information, receive second information, etc. The logic circuit 701 is configured to determine a first PTRS and a sensing signal based on the first information and the second information.

[0271] The logic circuit 701 and the input / output interface 702 may also execute other steps executed by the transmitting end or the receiving end in any embodiment and achieve corresponding beneficial effects, which will not be described in detail here.

[0272] Optionally, the logic circuit 701 may be a processing device, and the functions of the processing device may be partially or entirely implemented by software. The functions of the processing device may be partially or entirely implemented by software.

[0273] Optionally, the processing device may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory to perform corresponding processing and / or steps in any one of the method embodiments.

[0274] Alternatively, the processing device may include only a processor. A memory for storing the computer program is located outside the processing device, and the processor is connected to the memory via circuits / wires to read and execute the computer program stored in the memory. The memory and processor may be integrated or physically separate.

[0275] Optionally, the processing device may be one or more chips, or one or more integrated circuits. For example, the processing device may be one or more field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), system-on-chips (SoCs), central processor units (CPUs), network processors (NPs), digital signal processors (DSPs), microcontroller units (MCUs), programmable logic devices (PLDs), or other integrated chips, or any combination of the above chips or processors.

[0276] Please refer to Figure 8, which shows the communication device 800 involved in the above-mentioned embodiments provided in an embodiment of the present application. The communication device 800 can specifically be a communication device serving as a terminal device in the above-mentioned embodiments, and the terminal device can be a transmitting end or a receiving end in the above-mentioned embodiments.

[0277] Herein, a possible logical structure diagram of the communication device 800 is shown. The communication device 800 may include but is not limited to at least one processor 801 and a communication port 802 .

[0278] The transceiver unit 601 shown in FIG6 may be a communication interface, which may be the communication port 802 in FIG8 , which may include an input interface and an output interface. Alternatively, the communication port 802 may be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0279] Further optionally, the device may also include at least one of a memory 803 and a bus. In an embodiment of the present application, the at least one processor 801 is used to control and process the actions of the communication device 800.

[0280] Furthermore, the processor 801 may be a central processing unit (CPU), a general-purpose processor (GPPC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device (PLD), a transistor logic device (TLD), a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. Those skilled in the art will clearly understand that, for ease and brevity of description, the specific operating processes of the systems, devices, and units described above may refer to the corresponding processes in the aforementioned method embodiments and will not be further described herein.

[0281] It should be noted that the communication device 800 shown in Figure 8 can be specifically used to implement the steps implemented by the sending end or the receiving end in the aforementioned method embodiment, and to achieve the corresponding technical effects of the sending end or the receiving end. The specific implementation methods of the communication device shown in Figure 8 can refer to the description in the aforementioned method embodiment, and will not be repeated here one by one.

[0282] Please refer to Figure 9, which is a schematic diagram of the structure of a communication device 900 involved in the above-mentioned embodiments provided in an embodiment of the present application. The communication device 900 may specifically be a communication device as a network device in the above-mentioned embodiments, and the network device may be a transmitting end or a receiving end in the above-mentioned embodiments. The structure of the communication device may refer to the structure shown in Figure 9.

[0283] The communication device 900 includes at least one processor 911 and at least one network interface 914. Further optionally, the communication device also includes at least one memory 912, at least one transceiver 913 and one or more antennas 915. The processor 911, the memory 912, the transceiver 913 and the network interface 914 are connected, for example, via a bus. In an embodiment of the present application, the connection may include various interfaces, transmission lines or buses, etc., which are not limited in this embodiment. The antenna 915 is connected to the transceiver 913. The network interface 914 is used to enable the communication device to communicate with other communication devices through a communication link. For example, the network interface 914 may include a network interface between the communication device and the core network device, such as an S1 interface, and the network interface may include a network interface between the communication device and other communication devices (such as other network devices or core network devices), such as an X2 or Xn interface.

[0284] The transceiver unit 601 shown in FIG6 may be a communication interface, which may be the network interface 914 in FIG9 , which may include an input interface and an output interface. Alternatively, the network interface 914 may be a transceiver circuit, which may include an input interface circuit and an output interface circuit.

[0285] Processor 911 is primarily used to process communication protocols and communication data, control the entire communication device, execute software programs, and process data from software programs, for example, to support the communication device in performing the actions described in the embodiments. A communication device may include a baseband processor and a central processing unit. The baseband processor is primarily used to process communication protocols and communication data, while the central processing unit is primarily used to control the entire communication device, execute software programs, and process data from software programs. Processor 911 in Figure 9 may integrate the functions of both a baseband processor and a central processing unit. Those skilled in the art will appreciate that the baseband processor and the central processing unit may also be independent processors interconnected via a bus or other technology. Those skilled in the art will appreciate that a communication device may include multiple baseband processors to accommodate different network standards, multiple central processing units to enhance processing capabilities, and various components of the communication device may be connected via various buses. The baseband processor may also be referred to as a baseband processing circuit or a baseband processing chip. The central processing unit may also be referred to as a central processing circuit or a central processing chip. The functionality for processing communication protocols and communication data may be built into the processor or stored in memory as a software program, which is executed by the processor to implement the baseband processing functionality.

[0286] The memory is primarily used to store software programs and data. Memory 912 can exist independently and be connected to processor 911. Alternatively, memory 912 and processor 911 can be integrated together, for example, within a single chip. Memory 912 can store program code for executing the technical solutions of the embodiments of the present application, and execution is controlled by processor 911. The various computer program codes executed can also be considered drivers for processor 911.

[0287] Figure 9 shows only one memory and one processor. In an actual communication device, there may be multiple processors and multiple memories. The memory may also be referred to as a storage medium or storage device. The memory may be a storage element on the same chip as the processor, i.e., an on-chip storage element, or an independent storage element, which is not limited in the embodiments of the present application.

[0288] The transceiver 913 can be used to support the reception or transmission of radio frequency signals between the communication device and the terminal, and the transceiver 913 can be connected to the antenna 915. The transceiver 913 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 915 can receive radio frequency signals. The receiver Rx of the transceiver 913 is used to receive the radio frequency signal from the antenna, convert the radio frequency signal into a digital baseband signal or a digital intermediate frequency signal, and provide the digital baseband signal or digital intermediate frequency signal to the processor 911 so that the processor 911 can further process the digital baseband signal or digital intermediate frequency signal, such as demodulation and decoding. In addition, the transmitter Tx in the transceiver 913 is also used to receive a modulated digital baseband signal or digital intermediate frequency signal from the processor 911, convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and send the radio frequency signal through one or more antennas 915. Specifically, the receiver Rx can selectively perform one or more stages of down-mixing and analog-to-digital conversion on the RF signal to obtain a digital baseband signal or a digital intermediate frequency signal. The order of the down-mixing and analog-to-digital conversion processes is adjustable. The transmitter Tx can selectively perform one or more stages of up-mixing and digital-to-analog conversion on the modulated digital baseband signal or digital intermediate frequency signal to obtain a RF signal. The order of the up-mixing and digital-to-analog conversion processes is adjustable. The digital baseband signal and the digital intermediate frequency signal may be collectively referred to as digital signals.

[0289] The transceiver 913 may also be referred to as a transceiver unit, a transceiver, a transceiver device, etc. Optionally, a device in the transceiver unit that implements a receiving function may be referred to as a receiving unit, and a device in the transceiver unit that implements a transmitting function may be referred to as a transmitting unit. That is, the transceiver unit includes a receiving unit and a transmitting unit. The receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0290] It should be noted that the communication device 900 shown in Figure 9 can be specifically used to implement the steps implemented by the sending end or the receiving end in the aforementioned method embodiment, and to achieve the corresponding technical effects of the sending end or the receiving end. The specific implementation methods of the communication device 900 shown in Figure 9 can refer to the description in the aforementioned method embodiment, and will not be repeated here one by one.

[0291] An embodiment of the present application further provides a computer-readable storage medium for storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes the method described in the possible implementation methods of the sending end or the receiving end in the aforementioned embodiment.

[0292] An embodiment of the present application also provides a computer program product (or computer program). When the computer program product is executed by the processor, the processor executes the method that may be implemented by the above-mentioned sending end or receiving end.

[0293] An embodiment of the present application also provides a chip system, which includes at least one processor for supporting a communication device to implement the functions involved in the possible implementation methods of the above-mentioned communication device. Optionally, the chip system also includes an interface circuit, which provides program instructions and / or data to the at least one processor. In one possible design, the chip system may also include a memory, which is used to store the necessary program instructions and data for the communication device. The chip system can be composed of a chip, or it can include a chip and other discrete devices, wherein the communication device can specifically be the transmitting end or the receiving end in the aforementioned method embodiment.

[0294] An embodiment of the present application also provides a communication system, which includes the transmitting end and the receiving end in any of the above embodiments.

[0295] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0296] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0297] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0298] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above-mentioned method embodiment. When the terminal chip receives information from the base station, it can be understood that the information is first received by other modules in the terminal (such as a radio frequency module or antenna) and then sent to the terminal chip by these modules. When the terminal chip sends information to the base station, it can be understood that the information is first sent to other modules in the terminal (such as a radio frequency module or antenna) and then sent to the base station by these modules.

[0299] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above-mentioned method embodiment. When the base station chip receives information from the terminal, it can be understood that the information is first received by other modules in the base station (such as a radio frequency module or antenna) and then sent to the base station chip by these modules. When the base station chip sends information to the terminal, it can be understood that the information is sent to other modules in the base station (such as a radio frequency module or antenna) and then sent to the terminal by these modules.

[0300] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0301] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile 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. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and storage medium can also exist in a base station or a terminal as discrete components.

[0302] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0303] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A communication method, characterized in that: The method comprises: Sending first information, where the first information is used to indicate a multiplexing relationship between a demodulation reference signal DMRS port and a sensing port, wherein the DMRS port is used to indicate mapping of a DMRS symbol on a first resource unit, and the sensing port is used to indicate mapping of a sensing signal symbol on a second resource unit, and the first resource unit and the second resource unit overlap in frequency domain resources; Sending second information, wherein the second information includes: the DMRS, a first phase noise tracking signal PTRS, and the sensing signal, wherein the first PTRS is on an overlapping resource unit.

2. A communication method, characterized in that: The method comprises: Receive first information, where the first information is used to indicate a multiplexing relationship between a demodulation reference signal DMRS port and a sensing port, wherein the DMRS port is used to indicate mapping of a DMRS symbol on a first resource unit, and the sensing port is used to indicate mapping of a sensing signal symbol on a second resource unit, and the first resource unit and the second resource unit overlap in frequency domain resources; receiving second information, the second information comprising: the DMRS, a first phase noise tracking signal PTRS and the sensing signal, the first PTRS being on an overlapping resource unit; The first PTRS signal and the perception signal are determined based on the first information and the second information.

3. The method according to claim 1 or 2, characterized in that: The multiplexing relationship includes: the sensing port belongs to the DMRS port.

4. The method according to claim 3, characterized in that The number of the DMRS ports is greater than or equal to the number of the sensing ports.

5. The method according to claim 1 or 2, characterized in that: The multiplexing relationship includes: part of the sensing ports belong to the DMRS port.

6. The method according to claim 5, characterized in that The number of the DMRS ports is less than the number of the sensing ports.

7. The method according to any one of claims 1 to 6, characterized in that The first information is a first value, and the first value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the first resource unit is located.

8. The method according to any one of claims 1 to 7, characterized in that The first information is a second value, and the second value is used to indicate that the position of the first PTRS is the subcarrier where the DMRS corresponding to the minimum index in the third resource unit is located, and the third resource unit is a resource unit other than the first resource unit and the second resource unit.

9. The method according to any one of claims 1 to 8, characterized in that The second information further includes a second PTRS, where the second PTRS is on a fourth resource unit.

10. The method according to any one of claims 1 to 9, characterized in that The perceptual signal is related to the perceptual sequence and the root coefficients.

11. The method according to claim 10, characterized in that The root coefficient is related to at least one of the following: a threshold of a peak sidelobe ratio PSLR, a perceived detection distance range, a perceived detection speed range, a sequence length of the perceived signal, and a number of resource elements RE allocated to the first PTRS signal.

12. The method according to claim 11, characterized in that The root coefficient satisfies the following formula: Formula: Where c1 represents the root coefficient, C represents the speed of light, T s represents the sampling interval of the perception signal, M PTRS represents the number of REs, and D represents the value in the detection distance range.

13. The method according to claim 11 or 12, characterized in that: The root coefficient is associated with the number of REs, or the root coefficient is related to the detection distance range, or the root coefficient is related to the number of REs and the detection distance range.

14. The method according to any one of claims 1 to 13, characterized in that The signal energy carried by the overlapping resource units is greater than or equal to a first preset threshold.

15. The method according to any one of claims 1 to 14, characterized in that The index of the overlapping resource unit is greater than or equal to a second preset threshold.

16. The method according to any one of claims 1 to 15, characterized in that The second information also includes first data, and the first data includes uplink data and / or downlink data.

17. A communication device, characterized in that: The communication device comprises: A transceiver unit, configured to send first information, wherein the first information is used to indicate a multiplexing relationship between a demodulation reference signal DMRS port and a sensing port, wherein the DMRS port is used to indicate mapping of a DMRS symbol on a first resource unit, and the sensing port is used to indicate mapping of a sensing signal symbol on a second resource unit, and the first resource unit and the second resource unit overlap in frequency domain resources; The transceiver unit is further used to send second information, where the second information includes: the DMRS, a first phase noise tracking signal PTRS and the perception signal, where the first PTRS is on an overlapping resource unit.

18. A communication device, characterized in that: The communication device comprises: A transceiver unit, configured to receive first information, wherein the first information is used to indicate a multiplexing relationship between a demodulation reference signal DMRS port and a sensing port, wherein the DMRS port is used to indicate mapping of a DMRS symbol on a first resource unit, and the sensing port is used to indicate mapping of a sensing signal symbol on a second resource unit, and the first resource unit and the second resource unit overlap in frequency domain resources; The transceiver unit is further used to receive second information, wherein the second information includes: the DMRS, a first phase noise tracking signal PTRS and the sensing signal, wherein the first PTRS is on an overlapping resource unit; A processing unit is used to determine the PTRS signal and the perception signal based on the first information and the second information.

19. A communication device, characterized in that: Including logic circuits and input and output interfaces; The logic circuit and the input-output interface are used to execute the method as claimed in any one of claims 1, 3 to 16.

20. A communication device, characterized in that: Including logic circuits and input and output interfaces; The logic circuit and the input-output interface are used to execute the method as claimed in any one of claims 2 to 16.

21. A communication device, characterized in that: Used to implement the method according to any one of claims 1, 3 to 16.

22. The communication device according to claim 21, characterized in that The communication device includes a network device, a terminal device or a chip.

23. A communication device, characterized in that: Used to implement the method according to any one of claims 2 to 16.

24. The communication device according to claim 23, characterized in that The communication device includes a terminal device, a network device or a chip.

25. A communication system, characterized in that: Includes the communication device as described in claim 17 and the communication device as described in claim 18, or includes the communication device as described in claim 19 and the communication device as described in claim 20, or includes the communication device as described in claim 21 and the communication device as described in claim 23, or includes the communication device as described in claim 22 and the communication device as described in claim 24.

26. A computer-readable storage medium, characterized in that: The medium stores instructions, and when the instructions are executed, the method according to any one of claims 1 to 16 is implemented.

27. A computer program product, characterized in that The invention comprises instructions, which, when executed on a computer, enable the method according to any one of claims 1 to 16 to be implemented.

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