Communication method and device

Abstract

A communication method and device, applied to the technical field of communications, the method comprising: a first communication device receiving a first signal, and sending first information to a second communication device according to the first signal, the first signal being used for sensing, the second communication device being a communication device for executing sensing, the first information being used for assisting sensing. In the embodiment of the invention, the first communication device sends the first information to the second communication device according to the first signal, so that the second communication device can consider more information (namely the first information) when carrying out sensing processing according to the echo signal of the first signal. The first information is related to the first signal, and compared with a scheme in which the second communication device only performs sensing processing according to an echo signal of the first signal, the embodiment of the invention is beneficial to improving sensing performance.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a communication method and apparatus. Background Art

[0002] In the process of the evolution of the fifth-generation (5G) mobile communication system towards 5G-advanced (5G-A) technology, the communication-perception integration technology is considered to be one of the key technologies that can expand the service capabilities of the mobile communication network. The core idea of this communication-perception integration technology is to add perception capabilities to the mobile communication network, and construct capabilities such as detection, tracking, and imaging of targets, so that the two capabilities of communication and perception are integrated into one network, achieving harmonious coexistence and mutual benefit. The principle of the perception technology is that the transmitting-end device sends radio waves (i.e., perception signals) in a specific direction. When the radio waves irradiate the surface of the perception target, reflected radio waves (i.e., echo signals of the perception signals) will be formed. Thus, the receiving-end device obtains perception data, such as information about the position, speed, or type of the perception target, by receiving and processing the reflected radio waves. Currently, how to improve perception performance is an important research direction. Summary of the Invention

[0003] Embodiments of this application provide a communication method and apparatus, which are used to consider more information when performing perception processing based on the echo signals of perception signals, and are beneficial to improving perception performance.

[0004] In a first aspect, this application provides a communication method. This method can be executed by a first communication device, or can also be executed by a device including the first communication device, or can also be executed by a chip system (or, chip) or other functional modules that can implement the functions of the first communication device. For example, this chip system or functional module is disposed in the first communication device. For example, the first communication device can be a network device, or can also be a terminal device, without limitation.

[0005] Taking the first communication device as the execution entity as an example, this method may include: the first communication device receives a first signal, and sends first information to a second communication device according to the first signal. The first signal is used for perception, and the second communication device is a communication device for performing perception. The first information is used to assist perception, or the first information is used to assist the second communication device in performing perception.

[0006] Alternatively, the first communication device receives a first signal, determines a first resource, and sends first information to a second communication device according to the first signal. The first signal is used for perception, the first information occupies the first resource, and the second communication device is a communication device for performing perception. The first information is used to assist perception, or the first information is used to assist the second communication device in performing perception.

[0007] In the above embodiments, the first communication device sends the first information to the second communication device according to the first signal, so that the second communication device can consider more information (i.e., consider the first information) when performing sensing processing based on the echo signal of the first signal. The first information is related to the first signal. For example, the first information can reflect the communication environment of the first signal, which is beneficial to assisting the second communication device in performing sensing processing. Therefore, compared with the solution in which the second communication device only performs sensing processing based on the echo signal of the first signal, the embodiments of the present application are beneficial to improving the sensing performance.

[0008] In a possible implementation manner, the first information may occupy the first resource. The first resource is the first time unit after at least one time unit in the time domain. The at least one time unit may be the time unit occupied by the first signal, so that the first communication device can timely feedback the first information and reduce the signal interference between the feedback information. Or, the at least one time unit may be the coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal, so that the resource overhead can be reduced.

[0009] In a possible implementation manner, the first time unit may be the first time unit after at least one time unit, or the first time unit may also be the second time unit after at least one time unit. For example, one time unit may be one time slot. Through this implementation manner, the first communication device can timely feedback the first information.

[0010] In a possible implementation manner, the first communication device may determine the first resource for carrying the first information. For example, the first communication device may receive the second information from the third communication device, and the second information may be used to indicate the first resource. Through this implementation manner, the first resource may be determined by the first communication device itself, or may also be determined by other communication devices, and the implementation manner is flexible.

[0011] In a possible implementation manner, the second information may also be used to indicate that the first resource is associated with the first signal, so that the first communication device can determine that the first resource is used to carry the information associated with the first signal on which time domain resources.

[0012] In a possible implementation manner, the first information may include the received power information corresponding to the first signal, or include the transmission delay information corresponding to the first signal, or include the received power information corresponding to the first signal and the transmission delay information corresponding to the first signal. Both the received power and the transmission delay can reflect the communication environment of the first signal, so that the second communication device can consider more environmental information when obtaining sensing data based on the echo signal of the first signal, which is beneficial to improving the sensing performance.

[0013] In a possible implementation, the first signal can reach the first communication device through multiple transmission paths. The received power information corresponding to the first signal may include: the received power of the first signal on at least one transmission path, where the at least one transmission path is the transmission path in the multiple transmission paths with a received power greater than or equal to a first threshold; or, the received power of the first signal on N transmission paths in the multiple transmission paths, where N is a positive integer. Optionally, the first threshold can be predefined or can also be configured by the third communication device, without limitation. N can be predefined or can also be configured by the third communication device, without limitation.

[0014] In a possible implementation, the first signal can reach the first communication device through multiple transmission paths. The transmission delay information corresponding to the first signal may include: the transmission delay of the first signal on at least one transmission path, where the at least one transmission path is the transmission path in the multiple transmission paths with a received power greater than or equal to a second threshold; or, the transmission delay of the first signal on M transmission paths in the multiple transmission paths, where M is a positive integer. Optionally, the second threshold can be predefined or can also be configured by the third communication device, without limitation. M can be predefined or can also be configured by the third communication device, without limitation.

[0015] In a second aspect, the present application provides a communication method. This method can be executed by a second communication device, or can also be executed by a device including the second communication device, or can further be executed by a chip system (or, chip) or other functional modules that can implement the functions of the second communication device. For example, the chip system or functional module is disposed in the second communication device. For example, the second communication device can be a network device or can also be a terminal device, without limitation.

[0016] Taking the second communication device as the execution entity as an example, the method may include: the second communication device receives an echo signal of the first signal, receives first information from the first communication device, and performs sensing processing based on the echo signal of the first signal and the first information. Among them, the first information is used to assist sensing, or the first information is used to assist the second communication device in performing sensing.

[0017] In a possible implementation, the first information may occupy a first resource. The first resource is in a first time unit after at least one time unit in the time domain, where the at least one time unit is a time unit occupied by a first signal, or the at least one time unit is a coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal. For example, the first time unit may be the first time unit after the at least one time unit, or the first time unit may also be the second time unit after the at least one time unit. For example, a time unit may be a time slot.

[0018] In a possible implementation, the first information may occupy a first resource, and the second communication device may also send second information to the first communication device; or, the second communication device may also receive second information from a third communication device. The second information is used to indicate the first resource. That is, the first resource may be configured by the second communication device, or may also be configured by the third communication device, with flexible implementation methods.

[0019] In a possible implementation, the second information may also be used to indicate that the first resource is associated with the first signal.

[0020] In a possible implementation, the second communication device may also send a first signal.

[0021] In a possible implementation, the first information may include received power information corresponding to the first signal, or include transmission delay information corresponding to the first signal, or include received power information corresponding to the first signal and transmission delay information corresponding to the first signal.

[0022] In a possible implementation, the first signal may reach the first communication device through multiple transmission paths, and the received power information corresponding to the first signal may include: the received power of the first signal on at least one transmission path, where the at least one transmission path is a transmission path with a received power greater than or equal to a first threshold among the multiple transmission paths; or, the received power of the first signal on N transmission paths among the multiple transmission paths, where N is a positive integer. Optionally, the first threshold may be predefined, or may also be configured by the third communication device, without limitation. N may be predefined, or may also be configured by the third communication device, without limitation.

[0023] In a possible implementation, the first signal can reach the first communication device through multiple transmission paths. The transmission delay information corresponding to the first signal can include: the transmission delay of the first signal on at least one transmission path, where the at least one transmission path is a transmission path in the multiple transmission paths with a received power greater than or equal to a second threshold; or the transmission delay of the first signal on M transmission paths in the multiple transmission paths, where M is a positive integer. Optionally, the second threshold can be predefined or can also be configured by a third communication device, without limitation. M can be predefined or can also be configured by a third communication device, without limitation.

[0024] In a third aspect, the present application provides a communication method. This method can be executed by a third communication device, or can also be executed by a device including the third communication device, or can further be executed by a chip system (or, chip) or other functional modules that can implement the functions of the third communication device. For example, the chip system or functional module is provided in the third communication device. For example, the third communication device can be a network device or can also be a terminal device, without limitation.

[0025] Taking the third communication device as the execution entity as an example, the method can include: the third communication device sends second information, where the second information is used to indicate a first resource, and the first resource is used to carry first information, and the first information is used to assist sensing.

[0026] In a possible implementation, the second information can also be used to indicate that the first resource is associated with a first signal, and the first signal is used for sensing.

[0027] In a possible implementation, the first information can occupy the first resource. The first resource is in a first time unit after at least one time unit in the time domain, where the at least one time unit is a time unit occupied by the first signal, or the at least one time unit is a coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal. For example, the first time unit can be the first time unit after the at least one time unit, or the first time unit can also be the second time unit after the at least one time unit. For example, one time unit can be one time slot.

[0028] In a possible implementation, the third communication device can also send a first signal, and the first signal is used for sensing.

[0029] In a possible implementation, the first information can include the received power information corresponding to the first signal, or include the transmission delay information corresponding to the first signal, or include the received power information corresponding to the first signal and the transmission delay information corresponding to the first signal.

[0030] In a possible implementation, the first signal can reach the first communication device through multiple transmission paths. The received power information corresponding to the first signal may include: the received power of the first signal on at least one transmission path, where the at least one transmission path is a transmission path in the multiple transmission paths with a received power greater than or equal to a first threshold; or, the received power of the first signal on N transmission paths in the multiple transmission paths, where N is a positive integer. Optionally, the first threshold can be predefined or can also be configured by a third communication device, without limitation. N can be predefined or can also be configured by a third communication device, without limitation.

[0031] In a possible implementation, the first signal can reach the first communication device through multiple transmission paths. The transmission delay information corresponding to the first signal may include: the transmission delay of the first signal on at least one transmission path, where the at least one transmission path is a transmission path in the multiple transmission paths with a received power greater than or equal to a second threshold; or, the transmission delay of the first signal on M transmission paths in the multiple transmission paths, where M is a positive integer. Optionally, the second threshold can be predefined or can also be configured by a third communication device, without limitation. M can be predefined or can also be configured by a third communication device, without limitation.

[0032] In a fourth aspect, the present application provides a communication device, which can be used to execute the method described in the first aspect and any of its possible implementations above. The communication device can be, for example, the first communication device.

[0033] In a possible implementation, the communication device may include a baseband device and a radio frequency device.

[0034] In another possible implementation, the communication device may include a processing module (sometimes also referred to as a processing unit) and a transceiver module (sometimes also referred to as a transceiver unit). The transceiver module can implement the sending function and the receiving function. When the transceiver module implements the sending function, it can be called the sending module (sometimes also referred to as the sending unit). When the transceiver module implements the receiving function, it can be called the receiving module (sometimes also referred to as the receiving unit). The sending module and the receiving module can be the same functional module, and this functional module is called the transceiver module, which can implement the sending function and the receiving function; or, the sending module and the receiving module can be different functional modules, and the transceiver module is a general term for these functional modules.

[0035] In a fifth aspect, the present application provides a communication device, which can be used to execute the method described in the second aspect and any of its possible implementations above. The communication device can be, for example, the second communication device.

[0036] In one possible implementation, the communication device may include a baseband device and a radio frequency device.

[0037] In another possible implementation, the communication device may include a processing module (sometimes also referred to as a processing unit) and a transceiver module (sometimes also referred to as a transceiver unit). The transceiver module can implement the sending function and the receiving function. When the transceiver module implements the sending function, it can be referred to as a sending module (sometimes also referred to as a sending unit). When the transceiver module implements the receiving function, it can be referred to as a receiving module (sometimes also referred to as a receiving unit). The sending module and the receiving module can be the same functional module, and this functional module is called the transceiver module, which can implement the sending function and the receiving function; or, the sending module and the receiving module can be different functional modules, and the transceiver module is a general term for these functional modules.

[0038] In a sixth aspect, the present application provides a communication device, which can be used to execute the method described in the second aspect and any of its possible implementations above. The communication device can be, for example, a third communication device.

[0039] In one possible implementation, the communication device may include a baseband device and a radio frequency device.

[0040] In another possible implementation, the communication device may include a processing module (sometimes also referred to as a processing unit) and a transceiver module (sometimes also referred to as a transceiver unit). The transceiver module can implement the sending function and the receiving function. When the transceiver module implements the sending function, it can be referred to as a sending module (sometimes also referred to as a sending unit). When the transceiver module implements the receiving function, it can be referred to as a receiving module (sometimes also referred to as a receiving unit). The sending module and the receiving module can be the same functional module, and this functional module is called the transceiver module, which can implement the sending function and the receiving function; or, the sending module and the receiving module can be different functional modules, and the transceiver module is a general term for these functional modules.

[0041] In a seventh aspect, the present application provides a communication system, which includes one or more of the following: the communication device described in the fourth aspect above, the communication device described in the fifth aspect above, or the communication device described in the sixth aspect above.

[0042] In an eighth aspect, the present application further provides a communication device. The communication device may include one or more processors. Optionally, the communication device may further include a memory. Wherein, the memory is used to store one or more computer programs or instructions. The one or more processors are used to execute the one or more computer programs or instructions stored in the memory, so that the communication device executes the method described in any aspect of the first aspect to the third aspect and any of its possible implementations.

[0043] In a ninth aspect, the present application further provides a computer-readable storage medium for storing a computer program. When the computer program runs on a computer, the computer is caused to execute the method described in any one of the first aspect to the third aspect and any possible implementation manner thereof.

[0044] In a tenth aspect, the present application further provides a computer program product including a computer program. When the computer program runs on a computer, the computer is caused to execute the method described in any one of the first aspect to the third aspect and any possible implementation manner thereof.

[0045] For the technical effects achievable by any one of the second aspect to the tenth aspect and any possible implementation manner thereof, reference may be made correspondingly to the technical effects achievable by any one of the first aspect and any possible implementation manner thereof, and no repeated elaboration will be provided. Description of the Drawings

[0046] Figure 1 It is a schematic diagram of the network architecture of a communication system;

[0047] Figure 2 It is a schematic diagram of a communication-sensing integration scenario;

[0048] Figure 3 It is a schematic diagram of a sensing scenario;

[0049] Figure 4 It is a schematic diagram of a sensing signal being transmitted through multiple transmission paths;

[0050] Figure 5 It is a schematic flowchart of a communication method provided by an embodiment of the present application;

[0051] Figure 6 It is a schematic diagram of the time-domain resources occupied by the first information provided by an embodiment of the present application;

[0052] Figure 7 It is a schematic diagram of the time-domain resources occupied by the first information provided by an embodiment of the present application;

[0053] Figure 8 It is a schematic diagram of the time-domain resources occupied by the first information provided by an embodiment of the present application;

[0054] Figure 9 It is a schematic flowchart of a communication method provided by an embodiment of the present application;

[0055] Figure 10 It is a schematic structural diagram of a communication device provided by an embodiment of the present application;

[0056] Figure 11Schematic structural diagram of another communication device provided by an embodiment of the present application;

[0057] Figure 12 Schematic structural diagram of yet another communication device provided by an embodiment of the present application. Detailed implementation manners

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0059] The network architecture and service scenarios described in the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those of ordinary skill in the art will know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0060] In the embodiments of the present application, "multiple" may refer to two or more. In view of this, "multiple" in the embodiments of the present application may also be understood as "at least two". "At least one" can be understood as one or more, for example, understood as one, two, or more. For example, "including at least one" means including one, two, or more. For example, including at least one of A, B, and C, then what can be included is A, B, C, A and B, A and C, B and C, or A, B, and C. "And / or" describes the association relationship of associated objects. Specifically, there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / ", unless otherwise specified, generally represents an "or" relationship between the preceding and following associated objects.

[0061] In addition, the terms "system" and "network" in the embodiments of the present application can be used interchangeably, and "according to" and "based on" can be used interchangeably.

[0062] The ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are usually used to distinguish different objects, and are not used to limit the order, time sequence, priority, or importance degree of multiple objects. For example, the first communication device, the second communication device, the third communication device, and the fourth communication device in the embodiments of the present application are used to distinguish four communication devices, and do not limit the priority or importance degree of these four communication devices.

[0063] The embodiments of the present application will be presented around a system including multiple devices, components, modules, etc. It should be understood that this system may include other devices, components, modules, etc. that are not mentioned, or may only include some of the devices, components, or modules mentioned in the embodiments.

[0064] First, the communication system applicable to the embodiments of the present application will be introduced below.

[0065] The technical solutions of the embodiments of the present application can be applied to various communication systems. For example, universal mobile telecommunications system (UMTS), wireless local area network (WLAN), short-range wireless communication systems (such as sidelink, wireless fidelity (Wi-Fi), Bluetooth, etc.), wired networks, vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, vehicle-to-everything communication systems, 4th generation (4G) mobile communication systems (such as long term evolution (LTE) systems), LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD), worldwide interoperability for microwave access (WiMAX) communication systems, 5th generation (5G) mobile communication systems (such as new radio (NR) systems), future communication systems (such as 6th generation (6G) mobile communication systems), or other similar communication systems, etc., without limitation. The embodiments of the present application are Figure 1 described by taking the

[0066] Figure 1 shown communication system as an example. When applying the technical solutions of the embodiments of the present application to other communication systems, the devices, components, modules, etc. in the embodiments can be replaced with the corresponding devices, components, modules in other communication systems, without limitation.

[0066] Figure 1 is a schematic diagram of the architecture of the communication system to which the embodiments of the present application are applied. As Figure 1 shown, the communication system includes an access network 100 and a core network 200. Optionally, the communication system may further include the Internet 300. Among them, the access network 100 may include at least one radio access network (RAN) node, such as Figure 1 110a and 110b in Figure 1Among 120a - 120j. Here, 110a is a base station, 110b is a micro station, 120a, 120e, 120f, and 120j are mobile phones, 120b is a vehicle, 120c is a fuel dispenser, 120d is a home access point (HAP) deployed indoors or outdoors, 120g is a laptop computer, 120h is a printer, and 120i is a drone. Among them, the same terminal device or network device can provide different functions in different application scenarios. For example, Figure 1 The mobile phones among them are 120a, 120e, 120f, and 120j. Mobile phone 120a can access base station 110a, connect to vehicle 120b, directly communicate with mobile phone 120e, and access the HAP. Vehicle 120b can access the HAP and directly communicate with mobile phone 120a. Mobile phone 120f can access micro station 110b, connect to laptop computer 120g, and connect to printer 120h. Mobile phone 120j can control drone 120i.

[0067] A network device is a network - side device with wireless transceiver functions. This network device can be a device in a radio access network (RAN) that provides wireless communication functions for terminal devices, called a RAN device; or, this network device can also be a core network device. For ease of understanding, the following takes the network device as a RAN device as an example for explanation. RAN can be an access network in the 3rd generation partnership project (3GPP), for example, 4G, 5G, or a future - oriented 6G network. RAN can also be an open RAN (O - RAN or ORAN), a cloud radio access network (CRAN), or a communication network of two or more of the above networks. A RAN device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next - generation NodeB (gNB) in a 5G mobile communication system, a base station in a 6G mobile communication system, a base station in a future mobile communication system, an access node in a Wi - Fi system, a wireless relay node, or a wireless backhaul node, etc.

[0068] The RAN device can also be a module or unit that completes some functions of the base station. For example, it can be a Central Unit (CU), a Distributed Unit (DU), or a Radio Unit (RU). Here, the CU completes the functions of the radio resource control protocol and the Packet Data Convergence Protocol (PDCP) of the base station, and can also complete the function of the Service Data Adaptation Protocol (SDAP); the DU completes the functions of the radio link control layer and the Medium Access Control (MAC) layer of the base station, and can also complete some or all of the functions of the physical layer. For the specific descriptions of the above protocol layers, reference can be made to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The CU and DU can be set separately, or can also be included in the same network element, such as the Baseband Unit (BBU). The RU can be included in the radio device or radio unit, such as included in the Remote Radio Unit (RRU), the Active Antenna Unit (AAU), or the Remote Radio Head (RRH). In different systems, the CU, DU, or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be called O-CU (Open CU), the DU can also be called O-DU, and the RU can also be called O-RU. Any one of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The network device can be a macro base station (such as Figure 1 110a in Figure 1 ), or a micro base station or an indoor station (such as

[0069] 110b in

[0070] ), or a relay node or a donor node, etc. The embodiments of this application do not limit the specific technologies and specific device forms adopted by the network device.

[0069] In the embodiments of this application, the functions of the network device can also be executed by a module (such as a chip) in the network device, or can be executed by a control subsystem that includes the functions of the network device. Here, the control subsystem that includes the functions of the network device can be the control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city.

[0070] A terminal device is a user-side device with wireless transceiver functions. The terminal device can also be referred to as a terminal, user equipment (UE), user terminal, user device, user unit, user station, access terminal, access station, UE station, remote station, wireless communication device, mobile station, or mobile terminal, etc. The terminal device can be widely applied in various scenarios, such as D2D communication, V2X communication, machine-to-machine (M2M) communication or machine-type communication (MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc. The terminal device can be a mobile phone, tablet computer, computer with wireless transceiver functions, wearable device, vehicle, drone, helicopter, airplane, ship, robot, robotic arm, smart home device, etc.

[0071] In the embodiments of this application, the device for implementing the functions of the terminal device can be the terminal device or a device capable of supporting the terminal device to implement such functions, such as a chip system or a combined device or component that can implement the functions of the terminal device. This device can be installed in the terminal device. The embodiments of this application do not limit the specific technologies and specific device forms adopted by the terminal device.

[0072] The network device and the terminal device can be fixed in position or movable. The network device and the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites in the air. The embodiments of this application do not limit the application scenarios of the network device and the terminal device.

[0073] The network device and the terminal device can communicate through the air interface protocol. Among them, the air interface can be abbreviated as the air interface. The network device and the network device can communicate through the interface protocol between the network device and the network device. The terminal device and the terminal device can communicate through the interface protocol between the terminal device and the terminal device. The network device and the terminal device, the network device and the network device, and the terminal device and the terminal device can communicate through the authorized spectrum, or through the unlicensed spectrum, or through the authorized spectrum and the unlicensed spectrum at the same time, without limitation.

[0074] The roles of the network device and the terminal device can be relative. For example, Figure 1 the helicopter or drone 120i in can be configured as a mobile network device. For the terminal device 120j that accesses the radio access network 100 through 120i, the terminal device 120i is a network device; but for the network device 110a, 120i is a terminal device, that is, the communication between 110a and 120i is through the wireless air interface protocol. Of course, the communication between 110a and 120i can also be through the interface protocol between the network device and the network device. At this time, relative to 110a, 120i is also a network device. Therefore, the network device and the terminal device can both be uniformly referred to as communication devices. Figure 1 110a and 110b in can be called communication devices with network device functions. Figure 1 120a-120j in can be called communication devices with terminal device functions.

[0075] Next, the technical features involved in the embodiments of this application will be introduced.

[0076] In the process of the 5G mobile communication system evolving to 5G-A technology, the communication and sensing integration technology is considered to be one of the key technologies that can expand the service capabilities of the mobile communication network. The core idea of this communication and sensing integration technology is to add sensing capabilities to the mobile communication network, build capabilities such as detecting, tracking, and imaging of targets, so that the two capabilities of communication and sensing are integrated in one network, achieving harmonious coexistence and mutual benefit. Please refer to Figure 2 for a schematic diagram of a communication and sensing integration scenario. Figure 2 is shown with solid lines representing communication and dashed lines representing sensing. As Figure 2 shown, the network device can sense other objects through self-transmission and self-reception, or can sense other objects while communicating with the terminal device. Figure 2 is shown with the terminal device being a smart phone and the sensing targets being drones, pedestrians, and vehicles.

[0077] Sensing technologies can generally be classified into two types in terms of patterns: single - station sensing and bistatic sensing. Among them, the single - station sensing pattern means that the device for sending the sensing signal and the device for receiving the echo signal of the sensing signal are the same device. In other words, in the single - station sensing pattern, the sending - end device needs to both send the sensing signal and receive the echo signal reflected by the sensing target on the surface of the sensing target. Therefore, this single - station sensing pattern can also be called the self - transmitting and self - receiving pattern without further limitation. The bistatic sensing pattern means that the device for sending the sensing signal and the device for receiving the echo signal of the sensing signal are two different devices. In other words, sensing station A sends the sensing signal, and the echo signal reflected by the sensing signal on the surface of the sensing target is received by sensing station B. Therefore, this bistatic sensing pattern can also be called the A - transmitting and B - receiving pattern. It should be noted that the echo signal of the sensing signal is obtained by the reflection of the sensing signal on the surface of the sensing target. Therefore, this echo signal can still be called the sensing signal.

[0078] Figure 3 Schematic diagram exemplarily showing the sensing scenarios applicable to the embodiments of the present application. Figure 3 Six sensing scenarios applicable to the embodiments of the present application are provided, which are respectively: the scenario of network device A self - transmitting and self - receiving, that is, the scenario where network device A sends the sensing signal and receives the echo signal, as shown in Figure 3 (1) in; the scenario of terminal device A self - transmitting and self - receiving, that is, the scenario where terminal device A sends the sensing signal and receives the echo signal, as shown in Figure 3 (2) in; the scenario where network device A sends the sensing signal and network device B receives the echo signal, as shown in Figure 3 (3) in; the scenario where terminal device A sends the sensing signal and terminal device B receives the echo signal, as shown in Figure 3 (4) in; the scenario where network device A sends the sensing signal and terminal device A receives the echo signal, as shown in Figure 3 (5) in; the scenario where terminal device A sends the sensing signal and network device A receives the echo signal, as shown in Figure 3 (6) in. Figure 3 It is exemplified in with the sensing target being a vehicle and the terminal device being a smart phone.

[0079] Among them, the sensing target can also be called the target, the detected target, the sensed object, the detected object, or the sensed device, etc., without limitation. The sensing target can be various tangible objects in the environment that can reflect electromagnetic waves. For example, the sensing target can be stationary objects such as mountains, forests, or buildings. Also, for example, the sensing target can also be movable objects such as vehicles, drones, pedestrians, or terminal devices. The embodiments of the present application do not limit the specific implementation form of the sensing target.

[0080] In a possible implementation manner, the sensing signal can play the role of a communication signal, that is, the sensing signal may be received by a terminal device in the environment as a communication signal; or, the communication signal can also play the role of a sensing signal, that is, the communication signal (for example, a reference signal, etc.) is multiplexed for sensing. Taking the case where a network device transmits and receives by itself as an example, the network device transmits a sensing signal and receives the echo signal of the sensing signal; meanwhile, the sensing signal may reach the terminal device through multiple transmission paths, that is, the terminal device receives the sensing signal, as Figure 4 shown. Figure 4 In Figure 4 , it is exemplified that the sensing signal reaches the terminal device through transmission path 1 and transmission path 2, the terminal device is a mobile phone, and the sensing target is a vehicle.

[0081] The measurement parameters of sensing performance may include but are not limited to: accuracy, or resolution, etc. Among them, accuracy can be used to describe the error between the sensing result and the ideal true result. Taking distance sensing as an example, the distance between the sensing target and the sensing device obtained through the sensing signal is 6 meters, but the actual distance between the sensing target and the sensing device is 5 meters, then the sensing error is 1 meter, that is, the accuracy is 1 meter. Resolution can be used to describe the minimum ability of the sensing to distinguish two different sensing targets. Taking distance sensing as an example, the distance resolution is 1 meter, which means that if the distance between two sensing targets is greater than or equal to 1 meter, the sensing device can distinguish that there are two sensing targets; if the distance between two sensing targets is less than 1 meter, the sensing device cannot distinguish that there are two sensing targets.

[0082] Currently, how to improve sensing performance is an important research direction. In view of this, the embodiments of the present application provide a communication method and device for considering more information when performing sensing processing according to the echo signal of the sensing signal, which is beneficial to improving sensing performance. Among them, the method and device in the present application are based on the same technical concept. Since the principles of the method and device for solving problems are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be described again.

[0083] First, the technical terms involved in the embodiments of the present application will be introduced below.

[0084] The first signal can be used for sensing. The first signal can also be called a sensing signal, and the embodiments of the present application do not limit the specific name of the first signal. That the first signal is used for sensing can be replaced with: the first signal is used to perform sensing; or it can also be replaced with: the first signal is used to conduct sensing, etc. Optionally, the first signal can be a reference signal, for example, a positioning reference signal (PRS), etc. The embodiments of the present application do not limit the specific implementation form of the first signal.

[0085] The first communication device can be used to receive a first signal and send first information according to the first signal. The first communication device can be a network device or a component in a network device (such as a DU or an RU, etc.); or the first communication device can also be a terminal device or a component in a terminal device.

[0086] The second communication device can be a communication device that performs (or conducts) sensing. For example, the second communication device can be used to receive an echo signal of the first signal and perform sensing processing according to the echo signal of the first signal. The second communication device can be a network device or a component in a network device (such as a DU or an RU, etc.); or the second communication device can also be a terminal device or a component in a terminal device. For example, the second communication device can be Figure 3 the network device A shown in (1) or (6) in Figure 3 or a component in the network device A; or, the second communication device can also be Figure 3 the terminal device A shown in (2) or (5) in Figure 3 or a component in the terminal device A; or, the second communication device can also be

[0087] the network device B shown in (3) in

[0088] or a component in the network device B; or, the second communication device can also be Figure 3 any one of the network device A shown in (1), (3) or (5) in Figure 3 or a component in the network device A; or, the second communication device can also be

[0089] Among them, the descriptions of the network device and the terminal device can refer to Figure 1 the relevant content shown, which will not be elaborated here.

[0090] In a possible implementation, the first communication device may also implement the functions of the third communication device. That is, the first communication device may also be used to determine (or configure) the first resource. Or rather, the third communication device may also implement the functions of the first communication device. That is, the third communication device may also be used to receive the first signal and send the first information according to the first signal. Or rather, the first communication device and the third communication device are the same communication device.

[0091] In a possible implementation, the second communication device may also implement the functions of the third communication device. That is, the second communication device may also be used to determine (or configure) the first resource. Or rather, the third communication device may also implement the functions of the second communication device. That is, the third communication device may also be used to perform (or conduct) sensing processing. Or rather, the second communication device and the third communication device are the same communication device.

[0092] In a possible implementation, the fourth communication device may also implement the functions of the third communication device. That is, the third communication device may also be used to determine (or configure) the first resource. Or rather, the third communication device may also implement the functions of the fourth communication device. That is, the third communication device may also be used to send the first signal. Or rather, the fourth communication device and the third communication device are the same communication device.

[0093] In a possible implementation, the second communication device may also implement the functions of the fourth communication device. That is, the second communication device may also be used to send the first signal. Or rather, the fourth communication device may also implement the functions of the second communication device. That is, the fourth communication device may also be used to perform (or conduct) sensing processing. Or rather, the second communication device and the fourth communication device are the same communication device, such as Figure 3 network device A shown in (1) therein, or Figure 3 terminal device A shown in (2) therein.

[0094] The first resource may be used to carry the first information. The first resource may include time-domain resources. For example, the time-domain resources may include symbols, time slots, mini-slots, partial slots, sub-frames, radio frames, or sensing slots, etc., without limitation.

[0095] In the embodiments of the present application, time-domain resources are described in terms of time units. The time unit can be one or several symbols, or it can be one or several time slots, or it can be one or several mini-slots, or it can be one or several sub-frames, or it can also be one or several frames, etc. The embodiments of the present application do not limit the time-domain granularity. Among them, multiple time units can be continuous or discrete in time, without limitation. For example, a time unit can be a time slot.

[0096] A symbol can also be referred to as a modulation symbol, a symbol group, a modulation symbol sequence, a modulation symbol stream, a modulation symbol string, or a modulation symbol set, etc., without limitation. The embodiments of the present application do not limit the modulation method of the symbol. For example, a symbol can be an orthogonal frequency division multiplexing (OFDM) symbol.

[0097] In a possible implementation manner, the first resource may further include frequency-domain resources. For example, the frequency-domain resources may include resource elements (REs), resource blocks (RBs), RB sets, subchannels, resource pools, bandwidth parts (BWPs), carriers, channels, or interlaces, etc., without limitation.

[0098] The coherent processing interval (CPI), which can also be referred to as the coherent processing time, or the correlation processing interval, or the correlation processing time, etc., can be understood as a time period. In the embodiments of the present application, the correlation processing interval can be understood as the time period related to sensing processing. The coherent processing interval can include the time-domain resources occupied by the first signal (such as denoted as at least one time unit); or the coherent processing interval can include the transmission period of the first signal, within which the fourth communication device transmits one or more first signals. Exemplarily, the coherent processing interval can be understood as the time period occupied by a complete sensing processing process. For example, within the coherent processing interval, the fourth communication device transmits multiple first signals in the same beam direction; the second communication device receives the echo signals of each first signal, and coherently combines the echo signals of all the first signals transmitted by the fourth communication device within the coherent processing interval, so as to achieve sensing processing such as ranging and velocity measurement of the sensing target. Among them, coherent combination can be understood as performing processing such as matched filtering and Fourier transform on the echo signals of all the first signals within the coherent processing interval, without limitation.

[0099] Figure 5 Exemplarily, a schematic flowchart of a communication method provided by the embodiments of the present application is shown. As Figure 5 shown, the communication method may include the following content.

[0100] S501: The fourth communication device transmits a first signal.

[0101] Correspondingly, the second communication device receives the echo signal of the first signal. And, the first communication device receives the first signal.

[0102] The first signal can be used for sensing. Exemplarily, the fourth communication device can transmit the first signal in one beam direction; the first signal first reaches the sensing target through wireless transmission, and then reaches the second communication device after being reflected by the sensing target, that is, the second communication device can receive the echo signal of the first signal, as Figure 5 shown in S501a and S501b in. In the embodiments of the present application, the first signal can also reach the first communication device through one or more transmission paths, that is, the first communication device can receive the first signal, as Figure 5 shown in S501c in. Figure 5In the figure, a straight line is used to represent that the first signal reaches the first communication device through one or more transmission paths. For ease of understanding, in the embodiments of the present application, an example in which the first signal reaches the first communication device through multiple transmission paths is described. For example, the first signal can be transmitted by multiple objects in the communication environment and then reach the first communication device. Correspondingly, the first communication device can receive the first signal of multiple transmission paths. For example, the first communication device is located near the sensing target, or the first communication device is located near the second communication device, etc. The embodiments of the present application do not limit the position of the first communication device. It should be understood that the first signal can also directly reach the first communication device through wireless transmission. The embodiments of the present application do not limit the specific implementation manners of the multiple transmission paths.

[0103] Among them, terms such as the first signal, the first communication device, the second communication device, and the fourth communication device, etc., please refer to the content introduced in the foregoing terms for reference, and will not be elaborated here.

[0104] S502: The first communication device sends the first information to the second communication device according to the first signal.

[0105] Correspondingly, the second communication device receives the first information from the first communication device.

[0106] The first information can also be referred to as auxiliary information, or sensing auxiliary information, etc., without limitation. In the embodiments of the present application, the first information can be used to assist sensing. "The first information is used for sensing" can be replaced with: "The first information is used to assist in performing sensing"; or it can also be replaced with: "The first information is used to assist the second communication device in performing sensing"; or it can also be replaced with: "The first information is used to assist the second communication device in performing sensing processing", etc. Exemplarily, the first signal reaches the first communication device through multiple transmission paths. The first communication device can measure the first signal on the multiple transmission paths, obtain the first information, and send the first information to the second communication device.

[0107] In the embodiments of the present application, the first information can occupy the first resource, or it can be said that the first information is carried by the first resource (that is, the first resource is used to carry the first information). For the description of the first resource, please refer to the part of the term introduction, and will not be elaborated here. For example, the first communication device can send the first information to the second communication device on the first resource according to the first signal; correspondingly, the second communication device can receive the first information on the first resource. For example, the first communication device can determine the first resource and send the first information to the second communication device on the first resource according to the first signal.

[0108] The first resource may be configured (or determined) by the first communication device, or may also be configured (or determined) by other communication devices (e.g., the third communication device), or may also be predefined, without limitation. As an example, the first communication device may determine the first resource and send the second information to the second communication device. As another example, the third communication device may send the second information to the first communication device; correspondingly, the first communication device receives the second information from the third communication device. Further, the first communication device may determine the first resource according to the second information. Optionally, the third communication device may also send the second information to the second communication device; correspondingly, the second communication device receives the second information from the third communication device. Further, the second communication device may determine the first resource according to the second information. Herein, the second information may be used to indicate the first resource. For the third communication device, please refer to the foregoing description of terms and will not be elaborated herein.

[0109] In a possible implementation manner, the first resource may belong to the first time unit after at least one time unit in the time domain. Herein, that the first resource belongs to the first time unit in the time domain may also be expressed as: the first time unit includes the resource of the first resource in the time domain; or may also be expressed as: the first time unit includes the time-domain resource of the first resource. For example, if the first resource occupies at least one sub-time unit in the time domain, then the first time unit includes the at least one sub-time unit. A time unit may be composed of multiple sub-time units. For example, a time unit may be a time slot, and a sub-time unit may be an OFDM symbol, without limitation.

[0110] In an example, the at least one time unit may be the time unit occupied by the first signal. That is to say, the first communication device may send the first information to the second communication device in the first time unit after receiving the first signal. Or rather, the first communication device may send the first information to the second communication device in the first time unit after each reception of a first signal. Through this example, the first communication device can report the first information for each first signal, with timely feedback, enabling the second communication device to obtain more communication environment information. Optionally, the first time unit may be the first time unit after the at least one time unit; or, the first time unit may be the second time unit after the at least one time unit, so as to feedback the first information in a timely manner. For example, the first time unit may be the first up-down conversion time slot after the downlink time slot occupied by the first signal; or the first time unit may also be the first uplink time slot after the downlink time slot occupied by the first signal, without limitation.

[0111] For example, assume that a time unit is a time slot and the frame structure is: DDDSU. Here, D represents a downlink time slot for downlink transmission, denoted as the D time slot; U represents an uplink time slot for uplink transmission, denoted as the U time slot; S represents a time slot for the uplink / downlink transition, denoted as the S time slot. The fourth communication device can send a first signal within at least one D time slot in a frame structure; correspondingly, the first communication device receives the first signal within the at least one D time slot. Further, the first communication device can send first information to the second communication device within the first S time slot after the at least one D time slot, as shown in (1) of Figure 6 ; or, the first communication device can also send first information to the second communication device within the first U time slot after the at least one D time slot, as shown in (2) of Figure 6 . In this example, the time slot occupied by the first information and the at least one D time slot are within the period of the same frame structure; or rather, the first information is associated with the first signal received within the period of the frame structure where the time slot it occupies is located, Figure 6 as indicated by the curved arrow in Figure 6 . Taking CPI including 18 time slots and the fourth communication device sending the first signal within three D time slots in a frame structure period as an example.

[0112] In another example, the at least one time unit can be CPI, and the CPI1 includes the time unit occupied by the first signal. That is to say, the first communication device can send first information to the second communication device within the first time unit after CPI. Or rather, the first communication device can send first information to the second communication device within the first time unit after a complete sensing process. The fourth communication device can send multiple first signals during a complete sensing process; or rather, a complete sensing process includes multiple transmission periods of the first signal. For the description of CPI, please refer to the content in the foregoing term introduction and will not be elaborated here. Through this example, the first communication device can report the first information after CPI, which can reduce network overhead compared with reporting for each first signal. Optionally, the first time unit can be the first time unit after the at least one time unit; or, the first time unit can be the second time unit after the at least one time unit, which can timely feedback the first information. For example, the first time unit can be the first uplink / downlink transition time slot after CPI; or the first time unit can also be the first uplink time slot after CPI, without limitation.

[0113] For example, assume that a time unit is a time slot, the CPI includes 18 time slots, and the frame structure is: DDDSU. Here, D represents a downlink time slot for downlink transmission, denoted as a D time slot; U represents an uplink time slot for uplink transmission, denoted as a U time slot; S represents a time slot for the uplink-downlink transition, denoted as an S time slot. The fourth communication device can send a first signal within at least one D time slot in the CPI; correspondingly, the first communication device receives the first signal within at least one D time slot in the one CPI. Further, the first communication device can send first information to the second communication device within the first S time slot after the CPI, as shown in (1) of Figure 7 ; or, the first communication device can also send first information to the second communication device within the first U time slot after the CPI, as shown in (2) of Figure 7 . In this example, the first information is associated with the first signal received within the CPI it occupies, as indicated by the curved arrow in Figure 7 . Figure 7 shows an example where the fourth communication device sends the first signal within two D time slots in a cycle of a frame structure.

[0114] It should be noted that Figure 6 and Figure 7 show an example with a frame structure of DDDSU, but the specific implementation form of the frame structure in the embodiments of the present application is not limited thereto. For example, the frame structure can also be DSUUU; or the frame structure can also be DDSUU; or the frame structure can also be DSUUU; or the frame structure can also be DDDSUDDSUU; or the frame structure can also be DDDSUUDDDD, etc.

[0115] As mentioned above, the second information can be used to indicate the first resource. In one possible implementation, the second information can be used to indicate the time domain resources occupied by the first information (for example, denoted as at least one sub-time unit), and the time domain resources occupied by the first information are included in the first resource. The first time unit can be predefined or preconfigured, without limitation. For example, the second information can include a first field and a second field, and the first field and the second field can be used to indicate the at least one sub-time unit. The first field can be used to indicate the starting sub-time unit occupied by the first information, and the second field can be used to indicate the number of consecutive sub-time units occupied by the first information, as shown in Table 1. Or, the first field can be used to indicate the starting sub-time unit occupied by the first information, and the second field can be used to indicate the ending sub-time unit occupied by the first information. Or, the first field can be used to indicate the ending sub-time unit occupied by the first information, and the second field can be used to indicate the number of consecutive sub-time units occupied by the first information. In Table 1, it is shown with the sub-time unit being an OFDM symbol and both the first field and the second field occupying 4 bits.

[0116] Table 1

[0117]

[0118] In another possible implementation, the second information can be used to indicate at least one sub-time unit occupied by the first information within the first time unit. That is, the second information can also be used to indicate the first time unit. For example, the second information can include a first field, a second field, and a third field, and the third field can be used to indicate the first time unit. For the first field and the second field, please refer to the foregoing content and will not be elaborated here. As an example, the third field can be used to indicate the time unit after the time unit occupied by the first signal, as shown in Table 3. In Table 3, it is exemplified that the third field occupies 2 bits and one time unit is one time slot.

[0119] Table 3

[0120]

[0121]

[0122] As another example, the third field can be used to indicate the time unit after CPI, as shown in Table 4. In Table 4, it is exemplified that the third field occupies 2 bits and one time unit is one time slot.

[0123] Table 4

[0124] Value of the third field The first time unit 00 The first uplink time slot after CPI 01 The second uplink time slot after CPI 10 The third uplink time slot after CPI 11 The fourth uplink time slot after CPI

[0125] Optionally, the second information can also be used to indicate the frequency domain resources occupied by the first information (for example, denoted as at least one resource block (RB)), that is, the first resource can also include frequency domain resources. For example, the second information can also include a fourth field and a fifth field, and the fourth field and the fifth field can be used to indicate at least one RB occupied by the first information. Among them, the fourth field can be used to indicate the starting RB occupied by the first information, and the fifth field can be used to indicate the number of RBs occupied by the first information, as shown in Table 5. Or, the fourth field can be used to indicate the starting RB occupied by the first information, and the fifth field can be used to indicate the ending RB occupied by the first information. Or, the fourth field can be used to indicate the ending RB occupied by the first information, and the fifth field can be used to indicate the number of RBs occupied by the first information. Among them, in Table 5, it is exemplified that the fourth field occupies 8 bits and the fifth field occupies 6 bits.

[0126] Table 5

[0127]

[0128] It should be noted that the embodiments of the present application do not limit the specific implementation manner of the second information indicating the first resource. For example, the second information may also indicate the first resource in the form of a bitmap.

[0129] In a possible implementation manner, the second information may also be used to indicate that the first resource is associated with the first signal, such as Figure 6 or Figure 7 the curved arrow in, so that the first communication device can determine to use the first resource to feedback (or report, or send) the first information associated with the first signal received on which time domain resources. That the second information is also used to indicate that the first resource is associated with the first signal can be replaced with: the second information can also be used to indicate that the first resource is used to carry information associated with the first signal; or it can also be replaced with: the second information can also be used to indicate with which first signals received on which time domain resources the information carried by the first resource is associated.

[0130] For an example, if the first communication device sends the first information after the time unit occupied by the first signal (as Figure 6 shown), then the second information may include a first field, a second field and a sixth field, and the sixth field may be used to indicate with which first signals received on which time domain resources the information carried by the first resource is associated, as shown in Table 6. The first field and the second field are referred to the foregoing content and will not be elaborated here. In Table 6, it is shown by taking the sixth field occupying 2 bits as an example. Figure 6 It is shown by taking the first information being associated with the first signals received from the previous feedback to the current reception as an example.

[0131] Table 6

[0132]

[0133] Another example, if the first communication device sends the first information after the CPI, then the second information may include a first field, a second field and a sixth field, and the sixth resource may be used to indicate with which first signals received in one or more CPIs the information carried by the first resource is associated, as shown in Table 7. The first field and the second field are referred to the foregoing content and will not be elaborated here. In Table 7, it is shown by taking the sixth field occupying 2 bits as an example. Figure 7 It is shown by taking the first information being associated with the first signals received from the previous CPI to the current reception as an example.

[0134] Table 7

[0135]

[0136] In a possible implementation, the first resource may be applicable only to the first communication device, or may also be applicable to multiple communication devices. The multiple communication devices include the first communication device. In other words, the first resource may be a dedicated resource for the first communication device, or the first resource may also be a shared resource for multiple communication devices. That is, the resource for feeding back the associated information of the first signal may be configured for each feedback communication device, as shown in (1) of Figure 8 . Reserving a part of the resource for each feedback communication device in this way can reduce the interference of the first information fed back between the feedback communication devices. Alternatively, the resource for feeding back the associated information of the first signal may also be configured for multiple feedback communication devices, as shown in (2) of Figure 8 . Given that not all feedback communication devices can obtain valid information, reserving a shared resource for the multiple feedback communication devices so that the multiple feedback communication devices can all use the shared resource for feedback can reduce the resource overhead. Figure 8 shows an example where the multiple feedback communication devices include UE1, UE2, and UE3 and the frame structure is DDDSU.

[0137] In the embodiments of the present application, the first information is related to the first signal and can reflect the communication environment of the first signal. Exemplarily, the first information may include the received power information corresponding to the first signal, or the first information may include the transmission delay information corresponding to the first signal, or the first information may include the received power information corresponding to the first signal and the transmission delay information corresponding to the first signal. Among them, the received power information corresponding to the first signal can be understood as: the received power of the first signal on some or all of the transmission paths in the multiple transmission paths. The transmission delay information corresponding to the first signal can be understood as: the transmission delay of the first signal on some or all of the transmission paths in the multiple transmissions. It should be understood that if the first signal reaches the first communication device only through one transmission path, then the received power information corresponding to the first signal is the received power of the first signal on this transmission path, and the transmission delay information corresponding to the first signal is the transmission delay of the first signal on this transmission path.

[0138] An example, the first information includes the received power information corresponding to the first signal, and the received power information corresponding to the first signal may include the received power of the first signal on at least one transmission path. The at least one transmission path is a transmission path among the multiple transmission paths whose received power is greater than or equal to a first threshold. The first threshold may be predefined or may also be configured by a third communication device, without limitation. Exemplarily, the first communication device receives the first signal through multiple transmission paths and determines the received power of the first signal on the multiple transmission paths. If the received power of the first signal on the multiple transmission paths is greater than or equal to the first threshold (or it can be said that the received power of the first signal on the multiple transmission paths is not less than the first threshold), then the first information includes the received power of the first signal on the multiple transmission paths. That is, the first communication device sends the received power of the first signal on the multiple transmission paths to the second communication device. Or, if the received power of the first signal on some of the multiple transmission paths is greater than or equal to the first threshold, then the first information includes the received power of the first signal on these partial transmission paths. That is, the first communication device sends the received power of the first signal on these partial transmission paths to the second communication device. Or, if the received power of the first signal on the multiple transmission paths is less than the first threshold, the first communication device may not send the information associated with the first signal.

[0139] Another example, the first information includes the received power information corresponding to the first signal, and the received power information corresponding to the first signal may include the received power of the first signal on N transmission paths among the multiple transmission paths. Here, N is a positive integer. The N may be predefined or may also be configured by a third communication device, without limitation. Optionally, the received power of the first signal on the N transmission paths is greater than or equal to the received power of the first signal on the transmission paths other than the N transmission paths among the multiple transmission paths. Exemplarily, the first communication device receives the first signal through multiple transmission paths and determines the received power of the first signal on the multiple transmission paths. If the number of the multiple transmission paths is greater than N (that is, the number of the transmission paths of the first signal identified by the first communication device is less than N), then the first information includes the received power of the first signal on N transmission paths among the multiple transmission paths. That is, the first communication device sends the received power of the first signal on N transmission paths among the multiple transmission paths to the second communication device. For example, the first communication device may send the first N received powers of the received power of the first signal on the multiple transmission paths to the second communication device. Or, if the number of the multiple transmission paths is less than or equal to N, then the first information includes the received power of the first signal on the multiple transmission paths. That is, the first communication device sends the received power of the first signal on the multiple transmission paths to the second communication device.

[0140] Another example, the first information includes the transmission delay information corresponding to the first signal, and the transmission delay information corresponding to the first signal may include the transmission delays of the first signal on at least one transmission path. The at least one transmission path is the transmission path among the multiple transmission paths with a received power greater than or equal to a second threshold. The first threshold may be predefined or may also be configured by a third communication device, without limitation. The second threshold may be the same as or different from the first threshold, without limitation. Exemplarily, the first communication device receives the first signal through multiple transmission paths and determines the received power and transmission delays of the first signal on the multiple transmission paths. If the received power of the first signal on the multiple transmission paths is greater than or equal to the second threshold (or in other words, the received power of the first signal on the multiple transmission paths is not less than the second threshold), then the first information includes the transmission delays of the first signal on the multiple transmission paths. That is, the first communication device sends the transmission delays of the first signal on the multiple transmission paths to the second communication device. Or, if the received power of the first signal on some of the multiple transmission paths is greater than or equal to the second threshold, then the first information includes the transmission delays of the first signal on these partial transmission paths. That is, the first communication device sends the transmission delays of the first signal on these partial transmission paths to the second communication device. Or, if the received power of the first signal on the multiple transmission paths is less than the second threshold, then the first communication device may not send the information associated with the first signal.

[0141] Another example, the first information includes the transmission delay information corresponding to the first signal, and the transmission delay information corresponding to the first signal may include the transmission delays of the first signal on M transmission paths among multiple transmission paths. Here, M is a positive integer. The M can be predefined or can also be configured by the third communication device, without limitation. The M and N can be the same or can also be different, without limitation. Optionally, the received power of the first signal on the M transmission paths is greater than or equal to the received power of the first signal on the transmission paths other than the M transmission paths among the multiple transmission paths. Exemplarily, the first communication device receives the first signal through multiple transmission paths and determines the received power and transmission delay of the first signal on the multiple transmission paths. If the number of the multiple transmission paths is greater than M (that is, the number of the transmission paths of the first signal identified by the first communication device is greater than M), the first information includes the transmission delays of the first signal on M transmission paths among the multiple transmission paths. That is, the first communication device sends the transmission delays of the first signal on M transmission paths among the multiple transmission paths to the second communication device. For example, the first communication device may send the transmission delays of the transmission paths corresponding to the first M received powers among the received powers of the first signal on the multiple transmission paths to the second communication device. Or, if the number of the multiple transmission paths is less than or equal to M (that is, the number of the transmission paths of the first signal identified by the first communication device is less than or equal to M), the first information includes the transmission delays of the first signal on the multiple transmission paths. That is, the first communication device sends the transmission delays of the first signal on the multiple transmission paths to the second communication device.

[0142] It should be noted that the first communication device can determine which or which transmission paths to report the corresponding information according to the received power (or signal strength); or, the first communication device can also determine which or which transmission paths to report the corresponding information according to the transmission delay; or, the first communication device can also determine which or which transmission paths to report the corresponding information according to the received power and the transmission delay, without limitation.

[0143] Exemplarily, the first information may include at least one set of fields, and at least one set of fields corresponds to at least one transmission path one by one. That is, one set of fields corresponds to one transmission path. Each set of fields includes the seventh field, or includes the eighth field, or includes the seventh field and the eighth field. Here, the seventh field can be used to indicate the received power of the first signal on one transmission path, and the eighth field can be used to indicate the transmission delay of the first signal on one transmission path, as shown in Table 8. In Table 8, it is exemplified that the seventh field occupies 7 bits and the eighth field occupies 8 bits. Here, T can be 1 nanosecond, or can also be T S or can also be T C or can also be a predefined time unit, without limitation. TS and T C For the meaning of, please refer to the relevant content in 3GPP protocol 38.211.4.1.

[0144] Table 8

[0145]

[0146] In one implementation, the first information can also be used to indicate the number of transmission paths of the feedback, or the first information can also be used to indicate the number of transmission paths corresponding to itself. For example, the first information can also include a ninth field, and the ninth field is used to indicate the number of transmission paths corresponding to the first information, as shown in Table 9. In Table 9, an example is shown where the ninth field occupies 3 bits.

[0147] Table 9

[0148]

[0149] It should be noted that the data in any of Table 1 to Table 9 is only an example, and the embodiments of the present application are not limited thereto.

[0150] S503: The second communication device performs sensing processing according to the echo signal of the first signal and the first information.

[0151] S503 can also be expressed as: The second communication device processes the echo signal of the first signal according to the first information.

[0152] The second communication device can process the echo signal of the first signal according to the first information to obtain sensing data, such as data on the position and speed of the sensing target, without limitation. Exemplarily, the second communication device can process the echo signal of the first signal according to the received power information corresponding to the first signal; or, the second communication device can process the echo signal of the first signal according to the transmission delay information corresponding to the first signal; or, the second communication device can process the echo signal of the first signal according to the received power information corresponding to the first signal and the transmission delay information corresponding to the first signal. It should be noted that the embodiments of the present application do not limit the specific implementation process of the second communication device processing the echo signal of the first signal according to the first information. In addition, the number of feedback communication devices can be multiple, and then the second communication device can process the echo signal of the first signal according to the first information of the multiple feedback communication devices.

[0153] In the above Figure 5In the illustrated embodiment, the first communication device sends the first information to the second communication device according to the first signal, so that the second communication device can consider more information (i.e., consider the first information) when performing sensing processing based on the echo signal of the first signal. The first information is related to the first signal. For example, the first information can reflect the communication environment of the first signal, which is beneficial to assisting the second communication device in performing sensing processing. Therefore, compared with the solution where the second communication device only performs sensing processing based on the echo signal of the first signal, the embodiment of the present application is beneficial to improving the sensing performance.

[0154] Figure 5 In the illustrated embodiment, the fourth communication device and the second communication device are taken as different communication devices for example. For example, the fourth communication device can be Figure 3 Network device A in (3) of Figure 3 Network device B in (3) of Figure 3 The first communication device can be a network device other than network device A and network device B or a terminal device; or, the fourth communication device can be Figure 3 Terminal device A in (4) of Figure 3 Terminal device B in (4) of Figure 3 The first communication device can be a network device or a terminal device other than terminal device A and terminal device B; or, the fourth communication device can be Figure 3 Network device A in (5) of Figure 3 Terminal device A in (5) of

[0155] The first communication device can be a network device other than network device A or a terminal device other than terminal device A; or, the fourth communication device can be Figure 3 Terminal device A in (1) of Figure 3 The first communication device can be a network device or a terminal device other than terminal device A.

[0156] Please refer to Figure 9, which is a schematic flowchart of a communication method provided by an embodiment of the present application. In this example, the second communication device, the third communication device, and the fourth communication device are the same communication device, all of which are network devices, and the first communication device is a terminal device. In other words, in this example, Figure 3 is exemplified by the sensing scenario shown in (1) in Figure 3 . It should be understood that the specific implementation process of the embodiment of the present application applied to the sensing scenario shown in (2) in Figure 9 can refer to the content in this example. As Figure 9 shown, the method may include the following content.

[0157] S901: The network device sends the second information to the terminal device.

[0158] Correspondingly, the terminal device receives the second information from the network device.

[0159] S901 is an optional step, Figure 9 which is represented by a dotted line in . The second information is used to indicate the first resource. The first resource can be used to carry the first information. The first resource can belong to the first time unit after at least one time unit in the time domain. The at least one time unit can be the time unit occupied by the first signal or the CPI. Optionally, the second information can also be used to indicate that the first resource is associated with the first signal. For the descriptions of the second information, the first resource, etc., please refer to the relevant content in S502, which will not be elaborated here.

[0160] S902: The network device sends the first signal.

[0161] Correspondingly, the network device receives the echo signal of the first signal. And, the terminal device receives the first signal.

[0162] The first signal can be used for sensing. Exemplarily, the network device can send the first signal in one beam direction; the first signal first reaches the sensing target through wireless transmission, and then reaches the network device after being reflected by the sensing target. That is, the network device can receive the echo signal of the first signal, as Figure 9 shown in S902a and S902b in Figure 9 . In the embodiment of the present application, the first signal can also reach the terminal device through one or more transmission paths. That is, the terminal device can receive the first signal, as Figure 9 shown in S902c in Figure 9 is represented by a straight line in Figure 9 indicating that the first signal reaches the terminal device through one or more transmission paths.

[0163] Among them, the specific implementation process of S902 please refer to the description of S501, which will not be elaborated here.

[0164] S903: The terminal device sends the first information to the network device according to the first signal.

[0165] Correspondingly, the network device receives first information from the terminal device.

[0166] For example, the terminal device sends the first information to the network device on a first resource according to a first signal. The first information may also be referred to as auxiliary information, or sensing auxiliary information, etc., without limitation. In the embodiments of the present application, the first information may be used to assist sensing. Optionally, the first information may include received power information corresponding to the first signal, or may include transmission delay information corresponding to the first signal, or may include received power information corresponding to the first signal and transmission delay information corresponding to the first signal.

[0167] For the specific implementation process of S903, please refer to the description of S502 and will not be elaborated here.

[0168] S904: The network device processes the echo signal of the first signal according to the first information.

[0169] S904 may also be described as: The network device performs (or executes) sensing processing according to the first signal and the echo signal of the first signal.

[0170] The network device may process the echo signal of the first signal according to the first information to obtain sensing data, such as data on the position, speed, etc. of the sensing target, without limitation. Exemplarily, the network device may process the echo signal of the first signal according to the received power information corresponding to the first signal; or, the network device may process the echo signal of the first signal according to the transmission delay information corresponding to the first signal; or, the network device may process the echo signal of the first signal according to the received power information corresponding to the first signal and the transmission delay information corresponding to the first signal. It should be noted that the embodiments of the present application do not limit the specific implementation process of the network device processing the echo signal of the first signal according to the first information. Additionally, the number of feedback terminal devices may be multiple, and then the network device may process the echo signal of the first signal according to the first information of the multiple feedback terminal devices.

[0171] Figure 9 In the shown embodiments, the network device sends and receives by itself, and the terminal device may send the first information to the network device. In this way, when the network device obtains sensing data based on the echo signal of the first signal, it can refer to more environmental information, which is beneficial to improving the sensing performance.

[0172] In the embodiments provided by this application, the methods provided by the embodiments of this application are introduced from the perspective of interactions among multiple communication devices (for example, the first communication device, the second communication device, and the third communication device). Among them, the steps executed by the communication device (for example, the first communication device, the second communication device, or the third communication device) can be implemented by different functional entities that make up the communication device. The communication device (for example, the first communication device, the second communication device, or the third communication device) may include a hardware structure and / or software modules, and implement the above functions in the form of a hardware structure, software modules, or a combination of a hardware structure and software modules. Whether a certain function among the above functions is executed in the form of a hardware structure, software modules, or a combination of a hardware structure and software modules depends on the specific application and design constraints of the technical solution.

[0173] The following introduces the communication device used to implement the above method in the embodiments of this application with reference to the accompanying drawings. Therefore, the content above can be used in the subsequent embodiments, and the repeated content will not be elaborated.

[0174] Figure 10 The schematic structural diagram of a communication device 1000 is exemplarily shown. The communication device 1000 can implement the functions or steps implemented by the first communication device, the second communication device, or the third communication device in the above method embodiments.

[0175] Exemplarily, when the communication device 1000 is used to implement the functions or steps implemented by the first communication device in the above method embodiments, the communication device 1000 can be a network device or a component in the network device (such as DU and / or RU, etc.), or can also be a terminal device or a component in the terminal device.

[0176] Exemplarily, when the communication device 1000 is used to implement the functions or steps implemented by the second communication device in the above method embodiments, the communication device 1000 can be a network device or a component in the network device (such as DU and / or RU, etc.), or can also be a terminal device or a component in the terminal device.

[0177] Exemplarily, when the communication device 1000 is used to implement the functions or steps implemented by the third communication device in the above method embodiments, the communication device 1000 can be a network device or a component in the network device (such as DU and / or RU, etc.), or can also be a terminal device or a component in the terminal device.

[0178] In one implementation, the communication device 1000 may include a processing module 1001 and a transceiver module 1002. Among them, the processing module 1001 may be used for data processing, such as executing the above-mentioned method embodiments. The processing module 1001 may also be referred to as a processing unit or the like. The transceiver module 1002 may be used to implement corresponding communication functions, such as receiving or sending relevant data, information or messages. The transceiver module 1002 may also be referred to as a communication interface, or a communication module, or a transceiver unit, etc.

[0179] It should be noted that the communication device 1000 may include the processing module 1001 without including the transceiver module 1002. Or, the communication device 1000 may include the transceiver module 1002 without including the processing module 1001. Specifically, it depends on whether the above-mentioned scheme executed by the communication device 1000 includes processing actions and transceiver actions.

[0180] Optionally, the communication device 1000 may further include a storage module, Figure 10 not shown in the figure. The storage module may be used to store instructions and / or data, and the processing module 1001 may read the instructions and / or data in the storage module to enable the communication device 1000 to implement the foregoing method embodiments.

[0181] Optionally, the transceiver module 1002 may include a sending module and a receiving module. The sending module is used to execute the sending operation in the above-mentioned method embodiments. The receiving module is used to execute the receiving operation in the above-mentioned method embodiments.

[0182] It should be noted that the communication device 1000 may include the sending module without including the receiving module. Or, the communication device 1000 may include the receiving module without including the sending module. Specifically, it depends on whether the above-mentioned scheme executed by the communication device 1000 includes sending actions and receiving actions.

[0183] Optionally, the communication device 1000 is a chip system, the transceiver unit may be an input / output interface of a chip (such as a baseband chip), and the processing unit may be a processor of the chip system.

[0184] In the first implementation, the communication device 1000 may implement the functions of a first communication device and perform the following operations: The transceiver module 1002 is used to receive a first signal and send first information to a second communication device according to the first signal. Among them, the first signal is used for sensing, and the second communication device is a communication device for performing sensing. The first information is used to assist sensing, or the first information is used to assist the second communication device in performing sensing.

[0185] Optionally, the first information may occupy a first resource. The first resource belongs to a first time unit after at least one time unit in the time domain, where the at least one time unit is a time unit occupied by the first signal, or the at least one time unit is a coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal. For example, the first time unit may be the first time unit after the at least one time unit, or the first time unit may also be the second time unit after the at least one time unit. For example, a time unit may be a time slot.

[0186] Optionally, the processing module 1101 is configured to determine a first resource for carrying the first information. For example, the transceiver module 1002 is further configured to receive second information from a third communication device, and the second information may be used to indicate the first resource.

[0187] Optionally, the second information may also be used to indicate that the first resource is associated with the first signal, so that the first communication device may determine that the first resource is used to carry the first signal.

[0188] Optionally, the first information may include received power information corresponding to the first signal, or may include transmission delay information corresponding to the first signal, or may include received power information corresponding to the first signal and transmission delay information corresponding to the first signal.

[0189] Optionally, the first signal may reach the first communication device through multiple transmission paths, and the received power information corresponding to the first signal may include: the received power of the first signal on at least one transmission path, where the at least one transmission path is a transmission path in the multiple transmission paths with a received power greater than or equal to a first threshold; or, the received power of the first signal on N transmission paths in the multiple transmission paths, where N is a positive integer. Optionally, the first threshold may be predefined, or may also be configured by the third communication device, without limitation. N may be predefined, or may also be configured by the third communication device, without limitation.

[0190] Optionally, the first signal may reach the first communication device through multiple transmission paths, and the transmission delay information corresponding to the first signal may include: the transmission delay of the first signal on at least one transmission path, where the at least one transmission path is a transmission path in the multiple transmission paths with a received power greater than or equal to a second threshold; or, the transmission delay of the first signal on M transmission paths in the multiple transmission paths, where M is a positive integer. Optionally, the second threshold may be predefined, or may also be configured by the third communication device, without limitation. M may be predefined, or may also be configured by the third communication device, without limitation.

[0191] In the second implementation manner, the communication device 1000 can implement the functions of the second communication device and perform the following operations: The transceiver module 1002 is configured to receive the echo signal of the first signal and receive the first information from the first communication device; the processing module 1001 is configured to perform sensing processing based on the echo signal of the first signal and the first information.

[0192] Optionally, the first information may occupy the first resource. The first resource is the first time unit after at least one time unit in the time domain, where the at least one time unit is the time unit occupied by the first signal, or the at least one time unit is the coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal. For example, the first time unit may be the first time unit after the at least one time unit, or the first time unit may also be the second time unit after the at least one time unit. For example, one time unit may be one time slot.

[0193] Optionally, the first information may occupy the first resource. The transceiver module 1002 is further configured to send the second information to the first communication device; or the transceiver module 1002 is further configured to receive the second information from the third communication device. The second information is used to indicate the first resource. That is, the first resource may be configured by the second communication device, or may also be configured by the third communication device, and the implementation manner is flexible.

[0194] Optionally, the second information may further be used to indicate the association between the first resource and the first signal.

[0195] Optionally, the transceiver module 1002 is further configured to send the first signal.

[0196] Optionally, the first information may include the received power information corresponding to the first signal, or include the transmission delay information corresponding to the first signal, or include the received power information corresponding to the first signal and the transmission delay information corresponding to the first signal.

[0197] Optionally, the first signal may reach the first communication device through multiple transmission paths. The received power information corresponding to the first signal may include: the received power of the first signal on at least one transmission path, where the at least one transmission path is the transmission path with the received power greater than or equal to the first threshold among the multiple transmission paths; or the received power of the first signal on N transmission paths among the multiple transmission paths, where N is a positive integer. Optionally, the first threshold may be predefined, or may also be configured by the third communication device, without limitation. N may be predefined, or may also be configured by the third communication device, without limitation.

[0198] Optionally, the first signal may reach the first communication device through multiple transmission paths. The transmission delay information corresponding to the first signal may include: the transmission delay of the first signal on at least one transmission path, where the at least one transmission path is a transmission path in the multiple transmission paths with a received power greater than or equal to a second threshold; or, the transmission delay of the first signal on M transmission paths in the multiple transmission paths, where M is a positive integer. Optionally, the second threshold may be predefined or may also be configured by the third communication device, without limitation. M may be predefined or may also be configured by the third communication device, without limitation.

[0199] In the third implementation manner, the communication device 1000 may implement the functions of the third communication device and perform the following: The transceiver module 1002 is configured to send a second piece of information, where the second piece of information is used to indicate a first resource, and the first resource is used to carry a first piece of information, and the first piece of information is used to assist sensing.

[0200] Optionally, the second piece of information may also be used to indicate that the first resource is associated with a first signal, and the first signal is used for sensing.

[0201] Optionally, the first piece of information may occupy the first resource. The first resource is in a first time unit after at least one time unit in the time domain, where the at least one time unit is a time unit occupied by the first signal, or the at least one time unit is a coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal. For example, the first time unit may be the first time unit after the at least one time unit, or the first time unit may also be the second time unit after the at least one time unit. For example, one time unit may be one time slot.

[0202] Optionally, the transceiver module 1001 is further configured to send a first signal, and the first signal is used for sensing.

[0203] Optionally, the first piece of information may include the received power information corresponding to the first signal, or include the transmission delay information corresponding to the first signal, or include the received power information corresponding to the first signal and the transmission delay information corresponding to the first signal.

[0204] Optionally, the first signal may reach the first communication device through multiple transmission paths. The received power information corresponding to the first signal may include: the received power of the first signal on at least one transmission path, where the at least one transmission path is a transmission path in the multiple transmission paths with a received power greater than or equal to a first threshold; or, the received power of the first signal on N transmission paths in the multiple transmission paths, where N is a positive integer. Optionally, the first threshold may be predefined or may also be configured by the third communication device, without limitation. N may be predefined or may also be configured by the third communication device, without limitation.

[0205] Optionally, the first signal may reach the first communication device through multiple transmission paths. The transmission delay information corresponding to the first signal may include: the transmission delay of the first signal on at least one transmission path, where the at least one transmission path is a transmission path with a received power greater than or equal to a second threshold among the multiple transmission paths; or, the transmission delay of the first signal on M transmission paths among the multiple transmission paths, where M is a positive integer. Optionally, the second threshold may be predefined or may also be configured by a third communication device, without limitation. M may be predefined or may also be configured by a third communication device, without limitation.

[0206] It should be understood that a more detailed description of each module performing the corresponding process can be directly obtained by referring to the relevant descriptions in the above method embodiments. For the sake of brevity, it will not be elaborated here.

[0207] The processing module 1001 in the above embodiments may be implemented by at least one processor or processor-related circuits. The transceiver module 1002 may be implemented by a transceiver or transceiver-related circuits. The storage module may be implemented by at least one memory.

[0208] As Figure 11 shown, an embodiment of the present application provides a schematic structural diagram of a communication device 1100. The communication device 1100 may include a processor 1120, which is used to implement or support the communication device 1100 to implement the functions of the first communication device, the second communication device, or the third communication device in any method embodiment of the present application. Specifically, reference may be made to the detailed description in the foregoing method embodiments, which will not be elaborated here. For example, the processor 1120 is used to read and execute program instructions through a communication interface, so that the communication device 1100 implements the corresponding method. The processor 1120 may include one or more processors, without limitation.

[0209] It should be noted that the above-mentioned functional modules may be implemented by hardware or by a combination of hardware and software, without limitation. And when the communication device 1100 only includes the processor 1120, the communication device 1100 may be a chip or may also be a chip system.

[0210] For example, the communication device 1100 may be a chip system. Among them, the chip system may be composed of chips or may also include chips and other discrete devices, without limitation.

[0211] Optionally, the communication device 1100 may further include a memory 1130 for storing program instructions and / or data. The memory 1130 is coupled to the processor 1120. Here, the coupling can be understood as an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, for information interaction between devices, units, or modules. The processor 1120 may cooperate with the memory 1130. The processor 1120 and the memory 1130 may be integrated together or may be separately provided.

[0212] Furthermore, the processor 1120 is configured to execute the program instructions stored in the memory 1130 to enable the communication device 1100 to implement corresponding methods.

[0213] One or more memories in the memory 1130 may be included in the processor, or the memory 1130 may exist independently, such as an off-chip memory, and is connected to the processor 1120 through a communication bus ( Figure 11 represented by the thick line 1140). The memory 1130 and the processor 1120 may also be integrated together.

[0214] Optionally, the communication device 1100 further includes a communication interface 1110 ( Figure 11 represented by a dotted line) for communicating with other devices through a transmission medium, so that the devices in the communication device 1100 can communicate with other devices. Exemplarily, when the communication device is a first communication device, the other device may be a second communication device, etc. The processor 1120 may use the communication interface 1110 to receive and transmit data. For example, the processor 1120 may be configured to control the communication interface 1110 to receive and / or transmit signals.

[0215] Here, the communication interface 1110 may specifically be a transceiver. In hardware implementation, the transceiver may be used to implement the functions of the above-mentioned transceiver module 802, and the transceiver is integrated in the communication device 1100 to form the communication interface 1110.

[0216] It should be noted that the communication interface 1110 may have a sending function and a receiving function, and can implement signal reception and transmission; or it may have a sending function and no receiving function, for implementing signal transmission; or, it may also have a receiving function and no sending function, for implementing signal reception.

[0217] It should be noted that in the embodiments of the present application, the specific connection medium between the above-mentioned communication interface 1110, processor 1120, and memory 1130 is not limited. Figure 11In the middle, the memory 1130, the processor 1120, and the communication interface 1110 are connected through the communication bus 1140. The connection manners between other components are only for illustrative purposes and are not limited thereto. The communication bus 1140 can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 11 only a thick line is used to represent it in the figure, but it does not mean that there is only one communication bus or one type of communication bus.

[0218] In the embodiments of the present application, the processor 1120 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor, etc. The method disclosed in combination with the embodiments of the present application can be completed by the hardware in the processor, or completed by the combination of the hardware and software in the processor.

[0219] In the embodiments of the present application, the memory 1130 can be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or can also be a volatile memory, such as a random-access memory (RAM). The memory can also be any other medium that is used to carry or store program code in the form of instructions or data structures and can be accessed by a computer; or, it is a circuit or any other device capable of implementing a storage function, used to store program instructions and / or data.

[0220] In the first possible implementation manner, the communication device 1100 can be a first communication device, used to implement the relevant methods corresponding to the first communication device in the above-mentioned various embodiments. For specific functions, refer to the descriptions in the above-mentioned various embodiments.

[0221] Exemplarily, the relevant methods corresponding to the first communication device in the above-mentioned various embodiments include: receiving a first signal, and sending first information to a second communication device according to the first signal, where the first signal is used for sensing, and the second communication device is a communication device used to perform sensing. The first information is used to assist sensing, or the first information is used to assist the second communication device to perform sensing.

[0222] In the second possible implementation manner, the communication device 1100 can be a second communication device, used to implement the relevant methods corresponding to the second communication device in the above-mentioned various embodiments. For specific functions, refer to the descriptions in the above-mentioned various embodiments.

[0223] Exemplarily, the related methods corresponding to the second communication device in the above embodiments include: receiving an echo signal of the first signal, receiving the first information from the first communication device, and performing sensing processing based on the echo signal of the first signal and the first information. The first information is used to assist sensing, or the first information is used to assist the second communication device in performing sensing.

[0224] In a third possible implementation, the communication device 1100 may be a third communication device, which is used to implement the related methods corresponding to the third communication device in the above embodiments. For specific functions, refer to the descriptions in the above embodiments.

[0225] Exemplarily, the related methods corresponding to the third communication device in the above embodiments include: sending second information, where the second information is used to indicate a first resource, the first resource is used to carry the first information, and the first information is used to assist sensing.

[0226] For the specific implementation process, please refer to the relevant content in the foregoing embodiments, which will not be elaborated here.

[0227] Based on the same concept, refer to Figure 12 , the embodiments of the present application further provide another communication device 1200, including: an input / output interface 1210 and a logic circuit 1220; the input / output interface 1210 is used to receive code instructions and transmit them to the logic circuit 1220; the logic circuit 1220 is used to run the code instructions to execute the methods performed by the first communication device, the second communication device, or the third communication device in any of the above embodiments.

[0228] In a first implementation, the communication device 1200 can be applied to the first communication device and execute the methods performed by the first communication device. Specifically, for example, the methods performed by the first communication device in the foregoing method embodiments. For example, the communication device 1200 can receive a first signal and send the first information to the second communication device according to the first signal, where the first signal is used for sensing and the second communication device is a communication device for performing sensing. The first information is used to assist sensing, or the first information is used to assist the second communication device in performing sensing.

[0229] In a second implementation, the communication device 1200 can be applied to the second communication device and execute the methods performed by the second communication device. Specifically, for example, the methods performed by the second communication device in the foregoing method embodiments. For example, the communication device 1200 can receive an echo signal of the first signal, receive the first information from the first communication device, and perform sensing processing based on the echo signal of the first signal and the first information. The first information is used to assist sensing, or the first information is used to assist the second communication device in performing sensing.

[0230] In the third implementation manner, the communication device 1200 can be applied to a third communication device to execute the method performed by the third communication device, specifically, for example, the method performed by the third communication device in the foregoing method embodiments. For example, the communication device 1200 can send a second piece of information, where the second piece of information is used to indicate a first resource, the first resource is used to carry a first piece of information, and the first piece of information is used to assist sensing.

[0231] An embodiment of the present application further provides a communication system, which may include one or more of the following: a first communication device, a second communication device, or a third communication device. Among them, the first communication device, the second communication device, or the third communication device can all refer to the descriptions in the foregoing method embodiments and will not be elaborated herein.

[0232] An embodiment of the present application also provides a computer-readable storage medium, including program instructions, which, when running on a computer, cause the computer to execute the methods or steps of the first communication device, the second communication device, or the third communication device in the foregoing various embodiments.

[0233] An embodiment of the present application also provides a computer program product, including program instructions, which, when running on a computer, cause the computer to execute the methods or steps of the first communication device, the second communication device, or the third communication device in the foregoing various embodiments.

[0234] An embodiment of the present application provides a chip system, which includes a processor for implementing the functions of the first communication device, the second communication device, or the third communication device in the foregoing method (for example, executing the corresponding method or steps). The chip system can be composed of chips or can include chips and other discrete devices.

[0235] Optionally, the chip system further includes a memory for storing program instructions for the above-mentioned processor to read and execute to implement the corresponding method.

[0236] It should be understood that in various embodiments of the present application, the magnitudes of the serial numbers of the above processes do not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0237] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by the combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. A professional technician can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the present application.

[0238] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0239] In the several embodiments provided in the present 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 illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, 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 displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0240] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0241] In addition, in each embodiment of the present application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0242] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the part that essentially contributes to the technical solution of the present application or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0243] As described above, this is only the specific implementation manner of the present application. However, the protection scope of the embodiments of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the embodiments of the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, applied to a first communication device, characterized in that: The method comprises: receiving a first signal, where the first signal is used for sensing; First information is sent to a second communication device according to the first signal, wherein the second communication device is a communication device that performs the perception, and the first information is used to assist the perception.

2. The method according to claim 1, characterized in that The first information occupies a first resource, and the first resource belongs to the first time unit after at least one time unit in the time domain, wherein the at least one time unit is the time unit occupied by the first signal, or the at least one time unit is a coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal.

3. The method according to claim 2, characterized in that The first time unit is the first time unit after the at least one time unit; or, the first time unit is the second time unit after the at least one time unit.

4. The method according to any one of claims 1 to 3, characterized in that The first information occupies a first resource, and the method further includes: Second information is received from a third communication device, where the second information is used to indicate the first resource.

5. The method according to claim 4, characterized in that The second information is further used to indicate that the first resource is associated with the first signal.

6. A communication method, applied to a second communication device, characterized in that: The method comprises: receiving an echo signal of the first signal; receiving first information from a first communication device, where the first information is used to assist in perception; Perception processing is performed based on the echo signal of the first signal and the first information.

7. The method according to claim 6, characterized in that The first information occupies a first resource, and the first resource belongs to the first time unit after at least one time unit in the time domain, wherein the at least one time unit is the time unit occupied by the first signal, or the at least one time unit is a coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal.

8. The method according to claim 7, characterized in that The first time unit is the first time unit after the at least one time unit; or, the first time unit is the second time unit after the at least one time unit.

9. The method according to any one of claims 6 to 8, characterized in that The first information occupies a first resource, and the method further includes: Second information is sent to the first communication device, or second information is received from a third communication device, wherein the second information is used to indicate the first resource.

10. The method according to claim 9, characterized in that The second information is further used to indicate that the first resource is associated with the first signal.

11. The method according to any one of claims 6 to 10, characterized in that The method further comprises: The first signal is sent.

12. A communication method, applied to a third communication device, characterized in that: The method comprises: Send second information, where the second information is used to indicate a first resource, the first resource is used to carry first information, and the first information is used to assist perception.

13. The method according to claim 12, characterized in that The second information is further used to indicate that the first resource is associated with a first signal, and the first signal is used for the sensing.

14. The method according to claim 12 or 13, characterized in that The first resource belongs to the first time unit after at least one time unit in the time domain, wherein the at least one time unit is the time unit occupied by the first signal, or the at least one time unit is a coherent processing interval, and the coherent processing interval includes the time unit occupied by the first signal.

15. The method according to claim 14, characterized in that The first time unit is the first time unit after the at least one time unit; or, the first time unit is the second time unit after the at least one time unit.

16. The method according to any one of claims 12 to 15, characterized in that The method further comprises: A first signal is sent, where the first signal is used for the sensing.

17. The method according to any one of claims 1 to 16, characterized in that The first information includes reception power information corresponding to the first signal and / or transmission delay information corresponding to the first signal.

18. The method according to claim 17, characterized in that The first signal reaches the first communication device through multiple transmission paths, and the received power information corresponding to the first signal includes: the received power of the first signal on at least one transmission path, where the at least one transmission path is a transmission path among the multiple transmission paths whose received power is greater than or equal to a first threshold; or The received power of the first signal on N transmission paths among the multiple transmission paths, where N is a positive integer.

19. The method according to claim 17 or 18, characterized in that The first signal reaches the first communication device through multiple transmission paths, and the transmission delay information corresponding to the first signal includes: a transmission delay of the first signal on at least one transmission path, wherein the at least one transmission path is a transmission path among the multiple transmission paths whose received power is greater than or equal to a second threshold; or The transmission delay of the first signal on M transmission paths among the multiple transmission paths, where M is a positive integer.

20. A communication device, characterized in that: The method comprises a module for executing the method according to any one of claims 1 to 5, 17 to 19, or a module for executing the method according to any one of claims 6 to 11, 17 to 19, or a module for executing the method according to any one of claims 12 to 19.

21. A communication device, characterized in that: The method comprises at least one processor for executing the method according to any one of claims 1 to 5, 17 to 19, or the at least one processor for executing the method according to any one of claims 6 to 11, 17 to 19, or the at least one processor for executing the method according to any one of claims 12 to 19.

22. A communication system, characterized in that: The method comprises one or more of the following: a first communication device, a second communication device, or a third communication device, wherein the first communication device is used to execute the method according to any one of claims 1 to 5 and 17 to 19, the second communication device is used to execute the method according to any one of claims 6 to 11 and 17 to 19, and the third communication device is used to execute the method according to any one of claims 12 to 19.

23. A computer-readable storage medium, characterized in that A computer program or instructions is stored, the computer program or instructions being used to implement the method according to any one of claims 1 to 5, 17 to 19, or to implement the method according to any one of claims 6 to 11, 17 to 19, or to implement the method according to any one of claims 12 to 19.

24. A computer program product, characterized in that The computer program product comprises a computer program which, when run on a computer, causes the computer to execute the method according to any one of claims 1 to 5, 17 to 19, or to execute the method according to any one of claims 6 to 11, 17 to 19, or to execute the method according to any one of claims 12 to 19.

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