Communication method and apparatus

Abstract

A communication method and apparatus. The method comprises: after receiving first information, a first apparatus sending a reference signal on a second resource, wherein the reference signal is used for sensing; the first information may be used for determining the second resource from first resources, and the first resources are physical mapping resources of the reference signal; the first resources comprise M blocks, M being a positive integer, each of the M blocks comprises K resource blocks (RBs), K being a positive integer, and the spacing between adjacent resource elements in each of the K RBs is a first spacing; and the second resource comprises N of the M blocks, N being a positive integer. By means of the method, a first apparatus can send a reference signal on some resources among physical mapping resources of the reference signal, wherein the reference signal can be used for sensing, thereby reducing frequency-domain resources used for transmitting a sensing signal, reducing or avoiding the redundancy of frequency baselines between resources that actually send the reference signal, and thus the waste of frequency-domain resources can be reduced or avoided.

Description

Communication method and apparatus

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202410643702.5, filed on May 22, 2024, and entitled “A Communication Method and Apparatus”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and in particular, to a communication method and apparatus. BACKGROUND

[0004] Wireless sensing technology can obtain the characteristics of the signal propagation space by analyzing the changes of wireless signals in the propagation process, thereby achieving the perception of the scene. Taking radar as an example, the basic principle is that the transmitter transmits a specific waveform signal, which can be transmitted to the receiver through the wireless channel. By combining the transmitted signal and the received signal, the target of interest in the wireless channel can be extracted, thereby realizing wireless sensing.

[0005] Wireless communication can be used to exchange information between the transmitting and receiving ends, and the basic principle includes that the transmitter transmits a specific waveform signal, which is received by the receiver after passing through the wireless channel. After signal processing by the receiver, the signal transmitted by the transmitter is demodulated.

[0006] From the process of transmitting signals, transmitting signals, and receiving signals, the processes of wireless communication and wireless sensing are very similar. It can be seen that the combination of wireless communication and wireless sensing can realize communication between the transmitting and receiving ends while perceiving the surrounding environment. Specifically, the sensing signal can be transmitted on the frequency domain resource, which can be used to carry the information exchanged between the transmitting and receiving ends, and also can be used to perceive the objects in the surrounding environment.

[0007] How to reduce the frequency domain resource used to transmit the sensing signal needs further research. SUMMARY

[0008] The present application provides a communication method and apparatus to reduce the frequency domain resource used to transmit the sensing signal.

[0009] In a first aspect, an embodiment of the present application provides a communication method, which can be applied to a first device. The first device can be a terminal or an access network device, or a module, a communication module, a circuit or a chip responsible for communication function (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core), a chip system or a processor in the terminal or the access network device. The first device can also be a logic node, a logic module or software that can realize all or part of the functions of the terminal or the access network device. The method can include: the first device can receive first information. The first information can be used to determine a second resource in a first resource, and the first resource is a physical mapping resource of a reference signal. Then, the first device can send a reference signal for sensing on the second resource. The first resource can include M blocks, M is a positive integer, each of the M blocks includes K resource blocks (RBs), K is a positive integer, and the distance between adjacent resource elements in each of the K RBs is a first distance. The second resource can include N of the M blocks, N is a positive integer.

[0010] Through the method, the first device can send a reference signal on part of the physical mapping resource of the reference signal, which can be used for sensing, thereby reducing the frequency domain resource for transmitting the sensing signal, reducing or avoiding the redundancy of the frequency baseline between the resources actually sending the sensing signal, and further reducing or avoiding the waste of the frequency domain resource.

[0011] In addition, each of the M blocks can include K RBs. If K is an integer greater than 1, in the method, the first information can indicate N of the M blocks, without indicating whether each RB belongs to the N blocks, thereby saving signaling overhead and reducing the transmission resource required by the first information. In the method, sparse design can be performed in block granularity, without sparse design in RB granularity. Since the number of blocks can be less than the number of RBs, the complexity of sparse design can be reduced.

[0012] In a second aspect, an embodiment of the present application provides a communication method, which can be applied to a second device. The second device can be a terminal or an access network device, or a module, a communication module, a circuit or a chip responsible for communication function (such as a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system or a processor in the terminal or the access network device, or a logic node, a logic module or software capable of realizing all or part of the function of the terminal or the access network device. The method can include: the second device can receive first information. The first information can be used to determine a second resource in a first resource, and the first resource is a physical mapping resource of a reference signal. Then, the second device can receive the reference signal on the second resource, and perform sensing according to the reference signal. The first resource can include M blocks, M is a positive integer, each of the M blocks includes K resource blocks (RBs), K is a positive integer, and the distance between adjacent resource particles in each of the K RBs is a first distance. The second resource can include N blocks in the M blocks, N is a positive integer.

[0013] In a third aspect, an embodiment of the present application provides a communication method, which can be applied to a third device. The third device can be a sensing management function (SMF) or a device containing the SMF. The device containing the SMF can be a terminal or an access network device, or a module, a communication module, a circuit or a chip responsible for communication function (such as a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system or a processor in the terminal or the access network device, or a logic node, a logic module or software capable of realizing all or part of the function of the terminal or the access network device, or a device independent of the terminal or the access network device. The method can include: the third device can send first information. The first information can be used to determine a second resource in a first resource, the first resource can be a physical mapping resource of a reference signal, and the second resource can be used to carry the reference signal, which can be used for sensing. The first resource can include M blocks, M is a positive integer, each of the M blocks includes K resource blocks (RBs), K is a positive integer, and the distance between adjacent resource particles in each of the K RBs is a first distance. The second resource can include N blocks in the M blocks, N is a positive integer.

[0014] Based on any one of the first aspect to the third aspect, in a possible design, the unit of the time domain resource of the first resource is a time slot.

[0015] Based on any one of the first aspect to the third aspect, in a possible design, the first information can include at least one of the following:

[0016] 1. Indexes of the N blocks. In this way, the first information can accurately indicate the N blocks in the second resource.

[0017] 2. an index of the reference block in the N blocks, and an index difference of the neighboring block in the N blocks. In this way, the first information can include the index of the reference block in the N blocks and the index difference of the neighboring block in the N blocks, without including the index of each block in the N blocks. Compared with including the index of each block in the N blocks, this way can reduce the overhead of the first information, thereby saving signaling overhead and reducing the transmission resources required by the first information.

[0018] 3. a first bit map, bits included in the first bit map correspond to each block in the M blocks one by one, and the value of the bit included in the first bit map is used to determine the N blocks. Through this design, the first information can accurately indicate the N blocks through the first bit map. In addition, in this way, the first information does not need to include the index or the index difference of the N blocks, so that when the index of the N blocks is large, the overhead of the first information can be reduced, thereby saving signaling overhead and reducing the transmission resources required by the first information.

[0019] Based on any one of the first aspect to the third aspect, in a possible design, the K RBs can include RBs on one or more symbols.

[0020] Based on any one of the first aspect to the third aspect, in a possible design, on each symbol of the one or more symbols, the K RBs can include one or more RBs.

[0021] In the above design, the K RBs can have a variety of possible ways, and the implementation is more flexible.

[0022] Based on any one of the first aspect to the third aspect, in a possible design, different blocks in the M blocks occupy the same time domain position and different frequency domain positions.

[0023] Based on the first aspect or the third aspect, in a possible design, the method can further include that the third device can send second information; and correspondingly, the first device can receive the second information, and the second information can be used to determine the first resource configured for the reference signal. Through this design, the first device can quickly and accurately determine the first resource according to the second information. Moreover, in this design, the first resource is indicated by the second information from the third device, so that the third device can flexibly configure the first resource for the first device.

[0024] Based on the second aspect or the third aspect, in a possible design, the method can further include that the third device can send second information; and correspondingly, the second device can receive the second information, and the second information can be used to determine the first resource configured for the reference signal. Through this design, the second device can quickly and accurately determine the first resource according to the second information. Moreover, in this design, the first resource is indicated by the second information from the third device, so that the third device can flexibly configure the first resource for the second device.

[0025] In a possible design based on the first aspect or the third aspect, the method further can include:

[0026] The third device can send third information; and correspondingly, the first device can receive the third information. The third information is used to indicate that the reference signal is transmitted on the second resource. Through this design, the third device can indicate the first device to transmit the reference signal on the second resource in time through the third information. In this design, the first device can be indicated by the third device to transmit the reference signal on the second resource, thereby improving the flexibility of the management of the third device on the first device.

[0027] Alternatively, the first device can send fourth information; and correspondingly, the third device can receive the fourth information. The fourth information is used to request that the reference signal is transmitted on the second resource. Through this design, the first device can request that the reference signal is transmitted on the second resource in time through the fourth information. In this design, the first device can request that the reference signal is transmitted on the second resource, thereby improving the flexibility of the first device.

[0028] In a possible design based on the second aspect or the third aspect, the method further can include:

[0029] The third device can send third information; and correspondingly, the second device can receive the third information. The third information is used to indicate that the reference signal is transmitted on the second resource. Through this design, the third device can indicate the second device to receive the reference signal on the second resource in time through the third information. In this design, the second device can be indicated by the third device to receive the reference signal on the second resource, thereby improving the flexibility of the management of the third device on the second device.

[0030] Alternatively, the second device can send fourth information; and correspondingly, the third device can receive the fourth information. The fourth information is used to request that the reference signal is transmitted on the second resource. Through this design, the second device can request that the reference signal is transmitted on the second resource in time through the fourth information. In this design, the second device can request that the reference signal is transmitted on the second resource, thereby improving the flexibility of the second device.

[0031] Based on the first aspect or the third aspect, in a possible design, the method can further include that the first device can send fifth information; and correspondingly, the third device can receive the fifth information. The fifth information can include first demand information for indicating the sensing demand and / or capability information of the first device. The fifth information can be used for determining the first information; or in other words, the fifth information can be used for determining the second resource used for transmitting the reference signal for sensing. With this design, the second resource used for transmitting the reference signal can be determined according to the sensing demand and / or the capability of the first device, so that the second resource that is adapted to the sensing demand and / or the capability of the first device can be determined. Since the second resource can transmit the reference signal for sensing, this design can improve the sensing performance.

[0032] Based on the second aspect or the third aspect, in a possible design, the method can further include that the second device can send sixth information; and correspondingly, the third device can receive the sixth information; or in other words, the sixth information can be used for determining the second resource used for transmitting the reference signal for sensing. The sixth information can include second demand information for indicating the sensing demand and / or capability information of the second device. The sixth information can be used for determining the first information. With this design, the second resource used for transmitting the reference signal can be determined according to the sensing demand and / or the capability of the second device, so that the second resource that is adapted to the sensing demand and / or the capability of the second device can be determined. Since the second resource can transmit the reference signal for sensing, this design can improve the sensing performance.

[0033] Based on any one of the first aspect to the third aspect, in a possible design, the reference signal can be one of the following: a position reference signal (PRS), a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), a sounding reference signal (SRS), or a channel state information reference signal (CSI-RS).

[0034] In a fourth aspect, the present disclosure provides a communication apparatus. The communication apparatus can be a terminal or an access network device, or a module, a communication module, a circuit or a chip (e.g., a modem chip, or a SoC chip or a SIP chip including a modem core) responsible for communication functions, a chip system or a processor in a terminal or an access network device, or a logic node, a logic module or software capable of realizing all or part of the functions of a terminal or an access network device, or an SMF or an apparatus including an SMF. It should be understood that the SMF can also be referred to as a perception management network element, a perception management device or a perception management entity, etc. As long as it has the function of managing perception, it is within the protection scope of the present disclosure. The communication apparatus has the function of realizing any one of the first aspect to the third aspect. For example, the communication apparatus includes a module or a unit or a means corresponding to the operations related to any one of the first aspect to the third aspect, which can be implemented by software or hardware, or by executing corresponding software by hardware.

[0035] In a possible design, the communication apparatus includes an interface unit and a processing unit. The interface unit can be configured to transceive signals to implement communication between the communication apparatus and another apparatus, and the processing unit can be configured to perform some internal operations of the communication apparatus. The functions performed by the processing unit and the interface unit can correspond to the operations related to any one of the first aspect to the third aspect.

[0036] In a possible design, the communication apparatus includes a processor. The processor can execute computer programs or instructions, and when the computer programs or instructions are executed, the communication apparatus can implement the method in any possible design of any one of the first aspect to the third aspect.

[0037] In a possible design, the communication apparatus includes a processor and a memory. The memory can store necessary computer programs or instructions for implementing the functions related to any one of the first aspect to the third aspect. The processor can execute the computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, the communication apparatus can implement the method in any possible design of any one of the first aspect to the third aspect.

[0038] In a possible design, the communication apparatus includes a processor and an interface circuit. The processor is configured to communicate with another apparatus through the interface circuit, and perform the method in any possible design of any one of the first aspect to the third aspect.

[0039] In a fifth aspect, the present application provides a communication system, which can include one or more of a first device, a second device and a third device. The first device can perform the communication method provided in the first aspect, the second device can perform the communication method provided in the second aspect, and the third device can perform the communication method provided in the third aspect.

[0040] In a sixth aspect, the present application provides a computer readable storage medium, which stores a computer program or instructions, when the computer program or instructions are executed, the method in any possible design of any one of the first aspect to the third aspect is implemented.

[0041] In a seventh aspect, the present application provides a computer program product, which includes computer program codes, when the computer program codes are executed, the method in any possible design of any one of the first aspect to the third aspect is implemented.

[0042] In an eighth aspect, the present application provides a chip, which can include one or more processors for reading computer programs stored in a memory to execute the method in any possible design of any one of the first aspect to the third aspect.

[0043] In a possible design, the one or more processors can be coupled (or connected) with the memory. The memory is configured to store part or all of the necessary computer programs or instructions for implementing the functions related to any one of the first aspect to the third aspect. The one or more processors can execute the computer programs or instructions, when the computer programs or instructions are executed, so that the chip implements the method in any possible design of any one of the first aspect to the third aspect.

[0044] In a possible design, the chip can further include an interface circuit, and the processor can be configured to communicate with other devices or components through the interface circuit.

[0045] In a possible design, the chip can further include the memory, or the memory is outside the chip.

[0046] The technical effects that can be achieved by any one of the second aspect to the eighth aspect can be described with reference to the technical effects that can be achieved by any one of the possible designs of the first aspect, and the repeated parts will not be discussed. BRIEF DESCRIPTION OF DRAWINGS

[0047] FIG. 1 is a schematic diagram of a network architecture of a communication system provided by an embodiment of the present application;

[0048] FIG. 2 is a schematic diagram of a communication and perception integrated scenario provided by an embodiment of the present application;

[0049] FIG. 3 is a schematic diagram of several sensing scenarios according to an embodiment of the present application;

[0050] FIGs. 4A to 4D are schematic diagrams of several reference signals according to an embodiment of the present application;

[0051] FIG. 5 is a schematic diagram of a frequency point combination and corresponding frequency baseline redundancy according to an embodiment of the present application;

[0052] FIG. 6 is a flowchart of a communication method according to an embodiment of the present application;

[0053] FIGs. 7A to 7C are schematic diagrams of several blocks according to an embodiment of the present application;

[0054] FIG. 8 is a schematic diagram of M blocks according to an embodiment of the present application;

[0055] FIGs. 9A and 9B are schematic diagrams of M blocks and N blocks respectively according to an embodiment of the present application;

[0056] FIG. 9C is a schematic diagram of frequency baseline redundancy corresponding to the M blocks shown in FIG. 9A according to an embodiment of the present application;

[0057] FIG. 9D is a schematic diagram of frequency baseline redundancy corresponding to the N blocks shown in FIG. 9B according to an embodiment of the present application;

[0058] FIGs. 10A to 10B are schematic diagrams of frequency baseline redundancy corresponding to several N blocks according to an embodiment of the present application;

[0059] FIG. 11 is a flowchart of another communication method according to an embodiment of the present application;

[0060] FIG. 12 is a flowchart of yet another communication method according to an embodiment of the present application;

[0061] FIGs. 13 to 15 are block diagrams of several communication apparatuses according to embodiments of the present application. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application can be applied to various communication systems, for example, a universal mobile telecommunications system (UMTS), a wireless local area network (WLAN), a wireless fidelity (Wi-Fi or WiFi) system, a 4th generation (4G) mobile communication system (such as a long term evolution (LTE) system), a 5th generation (5G) mobile communication system (such as a new radio (NR) system), or a future evolved communication system (such as a 6th generation (6G) mobile communication system). The method provided in the embodiments of the present application can be applied to a terrestrial network communication system or a non-terrestrial network (NTN) communication system. The NTN communication system can be, for example, a satellite communication system, or can include a drone, a high altitude platform station (HAPS), and other aerial access network devices, which are not limited in the present application.

[0063] The present application will present various aspects, embodiments or features around a system that can include a plurality of devices, components, modules, etc. It should be understood and appreciated that each system can include additional devices, components, modules, etc., and / or can not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Moreover, combinations of these aspects can also be used.

[0064] In order to facilitate understanding of the embodiments of the present application, FIG. 1 shows a possible, non-limiting system schematic diagram. As shown in FIG. 1, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 10 can also include the Internet 300.

[0065] The RAN 100 includes at least one RAN node (e.g., 110a and 110b in FIG. 1, collectively referred to as 110) and at least one terminal (e.g., 120a-120j in FIG. 1, collectively referred to as 120). Other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 1), etc., can also be included in the RAN 100. The terminals 120 are wirelessly connected to the RAN nodes 110. The RAN nodes 110 are connected to a core network 200 through wireless or wired means. The core network devices in the core network 200 and the RAN nodes 110 in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the wireless access network.

[0066] The RAN 100 can be a 3rd generation partnership project (3GPP) related cellular system, such as a 4G, 5G mobile communication system, or a future-oriented evolved system (e.g., a 6G mobile communication system). The RAN 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a WiFi system. The RAN 100 can also be a communication system that combines two or more of the above systems.

[0067] The RAN nodes 110, which can also be referred to as RAN entities or access nodes, etc., form part of the communication system and help terminals to access wirelessly. The RAN nodes 110 in the communication system 10 can be of the same type or of different types. In some scenarios, the roles of the RAN nodes 110 and the terminals 120 are relative, e.g., the network element 120i in FIG. 1 can be a helicopter or a drone, which can be configured as a mobile base station. For a terminal 120j that accesses the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal. The RAN nodes 110 and the terminals 120 are sometimes collectively referred to as communication apparatuses, e.g., the network elements 110a and 110b in FIG. 1 can be understood as communication apparatuses with base station functions, and the network elements 120a-120j can be understood as communication apparatuses with terminal functions.

[0068] The RAN nodes can also be referred to as access network devices. In the following, the RAN nodes are referred to as access network devices unless otherwise specified.

[0069] In a possible scenario, the access network device can be a base station, an evolved NodeB (eNodeB), a transmitting point (TP), an access point (AP), a transmission reception point (TRP), a mobile switching center, a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The access network device can be a macro base station (such as 110a in FIG. 1), a micro base station or an indoor station (such as 110b in FIG. 1), a relay node or a donor node, or a wireless controller in a CRAN scenario, a satellite, a drone, a balloon, an airplane, etc. Alternatively, the access network device can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in vehicle to everything (V2X) technology can be a road side unit (RSU). All or part of the functions of the access network device in this application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform). The access network device in this application can also be a logical node, a logical module or software that can implement all or part of the functions of the access network device.

[0070] In another possible scenario, multiple access network devices cooperate to assist a terminal to implement wireless access, and different access network devices respectively implement part of the functions of a base station. For example, the access network device can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0071] The CU (or CU-CP and CU-UP), DU or RU can also have different names in different systems, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as an open CU (O-CU), the DU can also be referred to as an open DU (O-DU), the CU-CP can also be referred to as an open CU-CP (O-CU-CP), the CU-UP can also be referred to as an open CU-UP (O-CU-UP), and the RU can also be referred to as an open RU (O-RU). Any of the CUs (or CU-CP, CU-UP), DUs and RUs in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0072] A terminal can also be referred to as a terminal device, a user equipment (UE), a mobile station, a mobile terminal, a wireless terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, a user terminal device, a user agent, or a user device, etc. The terminal can be widely applied to various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart traffic, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. Among them, the wearable device can also be referred to as a wearable smart device or a smart wearable device, etc., which is a general term of devices that are designed and developed by applying wearable technology to daily wear. The terminal applied to a vehicle can be referred to as a vehicle-mounted terminal device, which is also referred to as an on-board unit (OBU) for example.

[0073] For example, a terminal can include a mobile phone (or called "cellular" phone), a computer with mobile terminal device, or a portable, pocket-sized, handheld, computer-embedded mobile device, etc. For example, a terminal can be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), etc. A terminal can also include a limited device, such as a device with limited power consumption, or a device with limited storage capacity, or a device with limited computing capacity, etc. For example, a terminal can be a bar code, a radio frequency identification (RFID), a sensor, a global positioning system (GPS), or a laser scanner, etc. An embodiment of the present application does not limit the device form of a terminal.

[0074] The communication system and service scenarios described in the embodiments of the present application are used to more clearly illustrate 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 skilled in the art can know that, with the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0075] The related terms involved in the embodiments of the present application will be explained first. It should be noted that these explanations are used to make the embodiments of the present application easier to understand, and should not be regarded as a limitation on the scope of protection required by the present application.

[0076] 1) Communication and perception integration:

[0077] The communication and perception integration technology is considered as one of the key technologies that can expand the service capabilities of a mobile communication network. The core idea of the communication and perception integration technology is to add perception capabilities on a mobile communication network, and to build the capabilities of target detection, tracking and imaging, so as to make the two capabilities of communication and perception coexist in a network, and to achieve mutual benefit. Please refer to FIG. 2, which is a schematic diagram of a communication and perception integration scenario. In FIG. 2, the communication is represented by a solid line, and the perception is represented by a dashed line as an example. As shown in FIG. 2, an access network device can perceive other objects through self-generation and self-reception, or can perceive other objects while communicating with a terminal. In FIG. 2, a terminal is taken as a smart phone, and a perception target is taken as a drone, a pedestrian, and a vehicle as an example.

[0078] The sensing technology can be generally divided into two modes: single-station sensing and double-station sensing. In the single-station sensing mode, the transmitting device of the sensing signal and the receiving device of the echo signal of the sensing signal are the same device. In other words, in the single-station sensing mode, the transmitting device not only transmits the sensing signal, but also receives the echo signal of the sensing signal reflected on the surface of the sensing target. Therefore, the single-station sensing mode can also be referred to as self-transmitting and self-receiving mode without limitation. In the double-station sensing mode, the transmitting device of the sensing signal and the receiving device of the echo signal of the sensing signal are different devices. In other words, sensing station A transmits the sensing signal, and sensing station B receives the echo signal of the sensing signal reflected on the surface of the sensing target. Therefore, the double-station sensing mode can also be referred to as A-transmitting and B-receiving mode. It should be noted that the echo signal of the sensing signal is obtained by the sensing signal after the sensing target acts on the sensing signal (for example, reflection, diffraction or scattering, etc.), and therefore the echo signal can still be referred to as the sensing signal.

[0079] FIG. 3 exemplarily shows a schematic diagram of a sensing scene to which the embodiments of the present application are applicable. Eight sensing scenes to which the embodiments of the present application are applicable are provided in FIG. 3, which are respectively: an access network device A self-transmitting and self-receiving scene, i.e., a scene in which the access network device A transmits the sensing signal and receives the echo signal, as shown in (1) of FIG. 3; a terminal A self-transmitting and self-receiving scene, i.e., a scene in which the terminal A transmits the sensing signal and receives the echo signal, as shown in (2) of FIG. 3; a scene in which the access network device A transmits the sensing signal and the access network device B receives the echo signal, as shown in (3) of FIG. 3; a scene in which the terminal A transmits the sensing signal and the terminal B receives the echo signal, as shown in (4) of FIG. 3; a scene in which the access network device A transmits the sensing signal and the terminal A receives the echo signal, as shown in (5) of FIG. 3; a scene in which the terminal A transmits the sensing signal and the access network device A receives the echo signal, as shown in (6) of FIG. 3; a scene in which the access network device A transmits the sensing signal and the access network device B receives the echo signal under the control of the access network device C, as shown in (7) of FIG. 3; and a scene in which the terminal A transmits the sensing signal and the terminal B receives the echo signal under the control of the access network device A, as shown in (8) of FIG. 3. In FIG. 3, the sensing target is taken as a vehicle, and the terminal is taken as a smart phone as an example.

[0080] The sensing target can also be referred to as a target, a detected target, a sensed object, a detected object, or a sensed device, without limitation. The sensing target can be various tangible objects in the environment that can reflect, diffract or scatter electromagnetic waves. For example, the sensing target can be a static object such as a mountain, a forest or a building. For another example, the sensing target can also be a movable object such as a vehicle, a drone, a pedestrian or a terminal. The embodiments of the present application do not limit the specific implementation form of the sensing target.

[0081] The sensing result can also be referred to as a detected result, a detected data, or the like, without limitation. The sensing result can be a result obtained by processing the echo signal by the receiving end device. For example, the sensing result can include at least one of a position of the sensing target, a speed of the sensing target, a distance of the sensing target to the receiving end device, a distance of the sensing target to the transmitting end device, a direction or angle of the sensing target, or a strength of the echo signal, and the like.

[0082] 2) Reference signal (RS):

[0083] The reference signal can also be referred to as a pilot signal. The reference signal is a known signal transmitted by the transmitting end device to the receiving end device. Some examples of the reference signal can be PRS, DMRS, PTRS, SRS, or CSI-RS.

[0084] The reference signal can be mapped to a physical mapping resource of the reference signal. The physical mapping resource of the reference signal can be replaced by at least one of a physical resource used for mapping the reference signal, a physical resource configured (or scheduled) for the reference signal, a physical resource of the reference signal, or a resource corresponding to (or indicated by) a physical resource pattern of the reference signal. The physical mapping resource of the reference signal can include a time domain resource and a frequency domain resource. It should be understood that the physical mapping resource can be a physical resource initially configured for the reference signal, but not necessarily a resource actually used for transmitting the reference signal. For example, if the physical mapping resource of a certain reference signal overlaps (e.g., partially overlaps or fully overlaps) with a physical resource corresponding to a synchronization signal / PBCH block (SSB), the overlapping part can be used for transmitting the SSB, and the resource of the physical mapping resource of the reference signal except the overlapping part can be used for transmitting the reference signal.

[0085] The physical mapping resource of the reference signal is described below with respect to PRS, DMRS, and CSI-RS, respectively.

[0086] (1) PRS:

[0087] The physical mapping resource of PRS can be the resource corresponding to (or indicated by) a PRS pattern. For example, the PRS pattern can be divided into four types: a 2-comb PRS pattern as shown in (a) of FIG. 4A; a 4-comb PRS pattern as shown in (b) of FIG. 4A; a 6-comb PRS pattern as shown in (c) of FIG. 4A; and a 12-comb PRS pattern as shown in (d) of FIG. 4A. Each of the squares filled with diagonal lines in FIG. 4A represents a resource element (RE) in the physical mapping resource of PRS, and each column of squares in FIG. 4A represents a resource block (RB) in the physical mapping resource of PRS. The number of symbols occupied by the physical mapping resource of PRS is an integer multiple of .

[0088] (2) DMRS:

[0089] The physical mapping resource of DMRS can be the resource corresponding to (or indicated by) a DMRS pattern. The DMRS can include a front-loaded DMRS (FL DMRS). Optionally, the DMRS can also include an additional DMRS.

[0090] The DMRS pattern of the front-loaded DMRS can occupy 1 symbol in 1 slot as shown in (a) of FIG. 4B, or the DMRS pattern of the front-loaded DMRS can occupy 2 symbols in 1 slot as shown in (b) of FIG. 4B. Each of the squares filled with diagonal lines in FIG. 4B represents a RE in the physical mapping resource of DMRS, and each column in FIG. 4B represents a RB in the physical mapping resource of DMRS. It should be understood that, in FIG. 4B, the starting frequency domain position of the DMRS pattern of the front-loaded DMRS is RE0, and the interval between REs is 2 REs, which are used as examples for illustration. In actual application, the starting frequency domain position of the DMRS pattern of the front-loaded DMRS can be another position (for example, RE1), and the interval between REs can be another interval (for example, 3 REs), which are not limited.

[0091] The DMRS pattern of the additional DMRS can occupy 1 to 3 symbols in a slot, and the DMRS pattern of the additional DMRS in each symbol can be the same as the DMRS pattern of the front-loaded DMRS. For example, as shown in FIG. 4C, the DMRS pattern in symbol 2 can be the DMRS pattern of the front-loaded DMRS, and the DMRS patterns in symbol 5, symbol 8, and symbol 11 can be the DMRS pattern of the additional DMRS. The DMRS patterns in symbol 5, symbol 8, and symbol 11 are the same as the DMRS pattern in symbol 2. Each square filled with diagonal lines in FIG. 4C represents one RE in the physical mapping resource of the DMRS, and each list containing a square filled with diagonal lines in FIG. 4C represents one RB in the physical mapping resource of the DMRS. It should be understood that the number of symbols occupied by the DMRS pattern of the additional DMRS in a slot is taken as an example in FIG. 4C. In actual application, the number of symbols occupied by the DMRS pattern of the additional DMRS can be other values, which are not limited.

[0092] (3) CSI-RS:

[0093] The physical mapping resource of the CSI-RS can be the resource corresponding to (or indicated by) the CSI-RS pattern. The CSI-RS pattern can occupy 1 to 4 symbols in the time domain; in the frequency domain, a CSI-RS is configured in each RB in the bandwidth part (BWP) range, or a CSI-RS is configured in every 2 RBs in the BWP range. FIG. 4D shows an example in which the CSI-RS pattern occupies 1 symbol in the time domain. Each square filled with diagonal lines in FIG. 4D represents one RE in the physical mapping resource of the CSI-RS, and each list containing a square filled with diagonal lines in FIG. 4C represents one RB in the physical mapping resource of the CSI-RS.

[0094] At present, the interval between adjacent REs in each RB in the physical mapping resource of the reference signal is the same (or uniform); in other words, the REs in each RB in the physical mapping resource of the reference signal are uniformly distributed.

[0095] 3) Frequency baseline:

[0096] The frequency baseline is obtained by subtracting one frequency from another frequency, and the length of the frequency baseline is the difference between the two frequencies.

[0097] For two frequency points, the frequency baseline between the two frequency points is obtained by subtracting the frequency of one frequency point from the frequency of the other frequency point, and the length of the frequency baseline between the two frequency points is the frequency difference between the two frequency points. In addition, the frequency baseline composed of multiple frequency points includes the frequency baseline between different two frequency points in the multiple frequency points, and the frequency baseline between each frequency point and itself.

[0098] For example, for two frequency points with frequencies f i and f j , the frequency baseline formed by the two frequency points includes: frequency baseline b ij = f i -f j , frequency baseline b ji = f j -f i , frequency baseline b ii = f i -f i = 0 and frequency baseline b jj = f j -f j = 0.

[0099] For two blocks with the same number of frequency points included, the frequency baseline between the two blocks is the frequency of the lth frequency point in one block minus the frequency of the lth frequency point in the other block. For example, the frequency baseline between block 1 and block 2 includes: frequency baseline b 12 = f 1l -f 2l and frequency baseline b 21 = f 2l -f 1l . Wherein, l is an integer greater than or equal to 1 and less than or equal to the number of frequency points included in the block. In addition, the frequency baseline formed by a plurality of blocks includes the frequency baseline between different two blocks in the plurality of blocks, and the frequency baseline between each block and itself. For example, the frequency baseline formed by block 1 and block 2 includes: frequency baseline b 12 = f 1l -f 2l , frequency baseline b 21 = f 2l -f 1l , frequency baseline b 11 = f 1l -f 1l = 0 and frequency baseline b 22 = f 2l -f 2l = 0, wherein f 1l is the lth frequency point in block 1, and f 2l is the lth frequency point in block 2.

[0100] Wherein, the lth frequency point in a block refers to the frequency point arranged in the lth position in the order of frequency from small to large of all the frequency points included in the block. The lth frequency point in a block can be any frequency point in the block. In addition, the arrangement manner of all the frequency points included in the block is not limited in the embodiments of the present application, for example, it can also be arranged in the order of frequency from large to small. The embodiments of the present application take the order of frequency from small to large as an example.

[0101] The frequency baseline can also be referred to as a baseline or a frequency difference, without limitation.

[0102] 4) Frequency baseline and ranging application

[0103] The frequency baseline can be applied in a ranging application. In the context of sensing and communication integration, ranging can be achieved by transmitting sensing signals on frequency points. Specifically, in the ranging application, ranging can be achieved based on the relative phase relationship between sensing signals on different frequency points, which is related to the frequency baseline.

[0104] For example, a transmitting device transmits sensing signals on P frequency points f1, f2, …, fP, and a receiving device receives the sensing signals after a delay τ from the transmission time. Compared with the sensing signals transmitted by the transmitting device, the phase of the sensing signals received by the receiving device on each frequency point changes, such as the phase change of the sensing signals on the frequency point f P may be expressed as 2π(f i -f i )τ, where i is an integer greater than or equal to 1 and less than or equal to N. It can be seen that, with the same delay τ, the phase changes of the sensing signals on different frequency points are different. For example, the phase change of the sensing signals on the frequency point f i is different from the phase change of the sensing signals on the frequency point f j The phase change difference Δφ ij = 2π(f i -f j )τ, where i and j are integers greater than or equal to 1 and less than or equal to N. It can be seen that the phase change difference is only related to the difference between the frequencies (i.e., the frequency baseline) and the delay, and the delay τ = d / c, where d is the distance between the transmitting device and the receiving device, and c = 3 × 10 8 represents the speed of light, so the frequency baseline can be used for ranging.

[0105] 5) Redundancy of frequency baseline

[0106] The redundancy of the frequency baseline means that there are at least two identical frequency baselines. For example, the frequency baselines b 12 = f1-f2 and b 34 = f3-f4, if f1-f2 = f3-f4, then b 12 and b 34 are two identical frequency baselines, that is, the frequency baseline is redundant.

[0107] When the frequency baseline is applied to ranging, the ranging results are the same based on the phase change difference represented by the same frequency baseline. For example, the sending device transmits the sensing signal at three frequency points f1, f2 and f3, where f2-f1=f3-f2. It can be seen that the frequency baselines b 21 =f2-f1 and b 32 =f3-f2 are the same, which indicates that the frequency baseline is redundant. The ranging results are the same based on the phase change difference represented by the frequency baseline b 21 and the frequency baseline b 32 . For P frequency points f1, f2, …, f P , P(P-1) / 2 frequency baselines can be formed. Since some frequency baselines are redundant, the number of non-redundant baselines is less than P(P-1) / 2.

[0108] 6) Parameters of the ranging application:

[0109] In the ranging application, the ranging resolution and the unambiguous distance of ranging are two important parameters, which are closely related to the frequency baseline.

[0110] Suppose there are P frequency points for transmitting the sensing signal, and the frequencies are f1, f2, …, f P in ascending order. The smallest frequency baseline can be b 21 =f2-f1, and the largest frequency baseline can be b P1 =f P -f1. The phase change difference corresponding to the smallest frequency baseline is Δφ 21 =2πb 21 τ, and the phase change difference corresponding to the largest frequency baseline is Δφ P1 =2πb P1 τ. On the one hand, the change of Δφ P1 will be greater than that of Δφ 21 when the delay τ changes by Δτ. Therefore, the larger the frequency baseline is, the more sensitive the delay is, the smaller the value of the ranging resolution is, and the better the ranging performance is. In other words, the larger the frequency baseline is, the smaller the value of the ranging resolution is, and the better the ranging performance is. The smaller the frequency baseline is, the larger the value of the ranging resolution is, and the worse the ranging performance is. On the other hand, if the phase change difference exceeds the range of 0-2π, the ranging based on the phase change difference value will be ambiguous. For example, when the detected phase change difference is π / 3, the actual phase change difference can be 2kπ+π / 3, where k is an integer. It can be seen that the uncertainty of the actual phase change difference will cause the ranging ambiguity. For the frequency baseline b ij , in order to ensure that the ranging is not ambiguous, it is necessary to satisfy 2πb ij τ<2π, i.e. τ<1 / b ijTherefore, the larger the frequency baseline, the smaller the range ambiguity-free distance; the smaller the frequency baseline, the larger the range ambiguity-free distance.

[0111] In summary, the larger the frequency baseline, the smaller the range resolution value, the smaller the range ambiguity-free distance; the smaller the frequency baseline, the larger the range resolution value, the larger the range ambiguity-free distance.

[0112] 7) Frequency baseline coverage is complete:

[0113] In order to balance the range resolution and the range ambiguity-free distance, different length of frequency baseline combination can be used for ranging, wherein small frequency baseline can be used to ensure the range ambiguity-free distance, and large frequency baseline can be used to ensure the resolution of the ranging.

[0114] Suppose there are P frequency points, the frequencies are f1, f2, …, f P The length of the minimum frequency baseline of the P frequency points is |b min |, the length of the maximum frequency baseline is |b max |, if the length of the frequency baseline is n|b min | (n = 1, 2, …, |b max | / |b min |), the frequency baseline can be constructed by P1 frequency points in P frequency points, then the frequency baseline composed of P1 frequency points is complete coverage.

[0115] Suppose there are P blocks, the number of frequency points included in different blocks in the P blocks is the same. The length of the minimum frequency baseline of the P blocks is |B min |, the length of the maximum frequency baseline is |B max |, if the length of the frequency baseline is m|B min | (m = 1, 2, …, |Bmax| / |B min |), the frequency baseline can be constructed by P1 points in P points, then the frequency baseline composed of P1 points is complete coverage.

[0116] 8) Column correlation is minimal:

[0117] Suppose there are Q candidate frequency points that can be used for sensing; in other words, suppose there are Q candidate frequency points that can be used to transmit sensing signals. Q is a positive integer. R frequency points in Q frequency points can be selected for actual transmission of sensing signals. In this case, the observation equation can be: y = ΦFx = Ψx.

[0118] wherein, is an R × 1 dimensional complex vector, each value in y can represent a response on a frequency point. x can represent the amplitude of the signal at different delays. Specifically, x can be represented as:

[0119] x m denotes the amplitude of the corresponding time delay τ m , m is an integer greater than or equal to 1 and less than or equal to S. S can be the number of time delay intervals, S is greater than or equal to Q.

[0120] denotes a Fourier transform matrix, the rows of the matrix denote the change of the frequency dimension, and the columns denote the change of the time delay dimension. Specifically, the matrix F can be represented as:

[0121] Δf is the interval between two adjacent frequency points.

[0122] denotes a frequency selection matrix, that is, R frequency points are selected from Q frequency points. Specifically, the matrix Φ can be:

[0123] Each row of the matrix Φ has only one element equal to 1 and other elements equal to 0; and each column has at most one element equal to 1. If an element in the qth column of the matrix Φ is equal to 1, it means that the qth frequency point is selected for sensing. The selection of R frequency points from Q frequency points can be represented as {f1, f2, …, fR}. M

[0124] denotes an observation matrix, which can be specifically represented as:

[0125] In order to quantitatively evaluate the observation matrix, the column correlation of the matrix is introduced, and for the column correlation can be defined as:

[0126] where ψ' is the normalized result of ψ, that is, i The column correlation describes the correlation between two different time delay measurement bases. Ideally, each column of the observation matrix is orthogonal, that is, the column correlation is 0. However, in reality, when the dimension R of the matrix is less than S, the rank of the matrix rank(Ψ)≤S, which means that the columns of the matrix Ψ cannot be completely orthogonal.

[0127] The correlation between the pth column and the qth column of the matrix Ψ can be represented as:

[0128] where τ p = pΔτ, τ q = qΔτ.

[0129] The criterion for the minimum column correlation is to design the observation matrix Ψ so that ​​The minimum. For example, by selecting appropriate R frequency points from Q frequency points, the observation matrix Ψ corresponding to the R frequency points can be obtained, so that the R frequency points correspond to The minimum.

[0130] 9) In this application, the time unit can be the unit of time domain resource. Illustratively, the time unit can include at least one of the following: system frame, subframe, slot, symbol, etc. Wherein, the symbol can also be referred to as modulation symbol, symbol group, modulation symbol sequence, modulation symbol stream, modulation symbol string or modulation symbol set, etc. without limitation. The modulation mode of the symbol is not limited in the embodiments of the present application. For example, one symbol can be an orthogonal frequency division multiplexing (OFDM) symbol.

[0131] The frequency unit can be the unit of frequency domain resource. Illustratively, the frequency unit can include at least one of the following: RB, RE, resource block group (RBG), etc.

[0132] 10) In this application, the block can have other names, such as resource, mapped resource block, mapped resource block group or mapped resource block set, etc. The interval can be referred to as (or replaced by) the interval.

[0133] 11) In this application, "sending information to (terminal)" can be understood as the destination of the information is the terminal, which can include directly or indirectly sending information to the terminal. "Receiving information from (terminal)" can be understood as the source of the information is the terminal, which can include directly or indirectly receiving information from the terminal. The information between the source and the destination of the information sending may be processed as necessary, such as format change, etc., but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly, and will not be repeated here.

[0134] Currently, 3GPP is considering applying reference signals to sensing scenarios. However, as mentioned above, in the physical mapping resource of the reference signal, the REs in each RB are uniformly distributed, which leads to resource waste. For example, as shown in (a) of FIG. 5, a sending device transmits a reference signal for sensing on 7 uniformly distributed frequency points. In ascending order of frequency, the frequencies of the 7 frequency points are f0, f1, f2, f3, f4, f5 and f6, where the length of the frequency base between adjacent two frequency points is b. The frequency base constituted by the 7 frequency points and the redundancy of each frequency base are shown in (b) of FIG. 5. It can be seen that, except for the -6b and 6b frequency bases, each of the remaining frequency bases has redundancy, thereby wasting frequency domain resources.

[0135] Next, an execution subject involved in the embodiments of the present application is introduced.

[0136] The first device can be used to send a reference signal, which can be used for sensing; or in other words, the first device can be used to send a sensing signal. The first device can be a terminal or an access network device, or a module, a communication module, a circuit or a chip responsible for communication function (such as a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system or a processor applied to the terminal or the access network device, and can also be a logic node, a logic module or software capable of realizing all or part of the terminal or the access network device function. For example, the first device can be the access network device A shown in any one of (1), (3), (5) or (7) in FIG. 3, or a module in the access network device A; or the first device can also be the terminal A shown in any one of (2), (4), (6) or (8) in FIG. 3, or a module in the terminal A.

[0137] The second device can be used to perform (or implement) sensing. For example, the second device can be used to receive the echo signal of the reference signal, and perform sensing processing according to the echo signal of the reference signal. The second device can be a terminal or an access network device, or a communication module, a circuit or a chip (such as a modem chip, or a SoC chip or a SIP chip containing a modem core) responsible for communication functions, a chip system or a processor applied to a terminal or an access network device, or a logic node, a logic module or software capable of realizing all or part of the functions of a terminal or an access network device. For example, the second device can be the access network device A shown in (1) or (6) of FIG. 3, or a module in the access network device A; or the second device can be the terminal A shown in (2) or (5) of FIG. 3, or a module in the terminal A; or the second device can be the access network device B shown in (3) or (7) of FIG. 3, or a module in the access network device B; or the second device can be the terminal B shown in (4) or (8) of FIG. 3, or a module in the terminal B.

[0138] The third device can be used to manage sensing. Optionally, the third device can be an SMF or a device containing an SMF. The SMF can be used to manage sensing. The SMF can be located in a terminal or an access network device, or the SMF can be a network element independent of the terminal or the access network device. The SMF can also have other names, such as a sensing management network element, a sensing management device or a sensing management entity, without limitation.

[0139] In some possible manners, the first device can implement the functions of the third device; or the first device and the third device are the same device; or the first device and the third device are located in the same device (such as a terminal or an access network device). In this manner, the step of transmitting information (or a message) between the first device and the third device is an optional step, for example, S601 in the following is an optional step.

[0140] In other possible manners, the second device can implement the functions of the third device; or the second device and the third device are the same device; or the second device and the third device are located in the same device (such as a terminal or an access network device). In this manner, the step of transmitting information (or a message) between the first device and the second device is an optional step, for example, S602 in the following is an optional step.

[0141] In some possible implementations, the first device, the second device and the third device are located in different apparatuses. For example, the first device can be the access network device A in (7) of FIG. 3, or a module in the access network device A; the second device can be the access network device B in (7) of FIG. 3, or a module in the access network device B; and the third device can be the access network device C in (7) of FIG. 3, or a module in the access network device C. For another example, the first device can be the terminal A in (8) of FIG. 3, or a module in the terminal A; the second device can be the terminal B in (8) of FIG. 3, or a module in the terminal B; and the third device can be the access network device A in (8) of FIG. 3, or a module in the access network device A.

[0142] In some possible implementations, the first device can implement the function of the second device, that is, the first device and the second device are the same device, or the first device and the second device are located in the same apparatus (for example, a terminal or an access network device). In this case, the step of transmitting, between the first device and the second device, information (or a message) other than the reference signal is an optional step.

[0143] Embodiments of the present application provide a communication method. FIG. 6 is a flowchart of a communication method provided by an embodiment of the present application. As shown in FIG. 6, the method comprises the following steps.

[0144] S601: The third device can transmit first information; and correspondingly, the first device can receive the first information.

[0145] The first information can be used to determine the second resource in the first resource.

[0146] The first resource can be a physical mapping resource of a reference signal. The specific content of the physical mapping resource of the reference signal can be referred to the description of the "physical mapping resource of the reference signal" in the explanation of the terms, which will not be repeated here. The reference signal can be a traditional reference signal, for example, the reference signal can be one of the following: PRS, DMRS, PTRS, SRS or CSI-RS. In the subsequent standard evolution process, the name of the traditional reference signal can change or remain unchanged, which is within the protection scope of the present application. Alternatively, the reference signal can be an evolution of the traditional reference signal, and the name of the evolved reference signal can change or remain unchanged, which is within the protection scope of the present application. Alternatively, the reference signal can be a new reference signal or a future defined reference signal.

[0147] The first resource can include M blocks, where M is a positive integer. Each of the M blocks can include K RBs, where K is a positive integer, in other words, K is an integer greater than or equal to 1. The spacing between adjacent REs in each of the K RBs is a first spacing; in other words, the REs in each of the K RBs are equally spaced; or, the REs in each of the K RBs are uniformly distributed. Optionally, the K RBs can include RBs over one or more symbols. On each of the one or more symbols, the K RBs can include one or more RBs. When the one or more symbols include multiple symbols, the multiple symbols can be consecutive or non-consecutive in the time domain.

[0148] The K RBs are exemplified below in connection with different reference signals; or, in other words, one of the M blocks is exemplified.

[0149] For example, the reference signal is a PRS. (a) of FIG. 4A is an example of one of the M blocks. The K RBs can be 2 RBs. The 2 RBs can be RBs over 2 symbols. On each of the 2 symbols, the 2 RBs include 1 RB. Each of the 2 RBs can include 6 REs. The spacing between adjacent REs in the 6 REs is 2 REs.

[0150] For example, the reference signal is a PRS. (b) of FIG. 4A is another example of one of the M blocks. The K RBs can be 4 RBs. The 4 RBs can be RBs over 4 symbols. On each of the 4 symbols, the 4 RBs include 1 RB. Each of the 4 RBs can include 3 REs. The spacing between adjacent REs in the 3 REs is 4 REs.

[0151] For example, the reference signal is a PRS. (c) of FIG. 4A is yet another example of one of the M blocks. The K RBs can be 6 RBs. The 6 RBs can be RBs over 6 symbols. On each of the 6 symbols, the 6 RBs include 1 RB. Each of the 6 RBs can include 2 REs. The spacing between the 2 REs is 6 REs.

[0152] For example, the reference signal is a DMRS. (a) of FIG. 4B is yet another example of one of the M blocks. The K RBs can be 1 RB. The 1 RB can be over one symbol. The 1 RB can include 6 REs. The spacing between adjacent REs in the 6 REs is 2 REs.

[0153] For another example, the reference signal is DMRS. FIG. 4B (b) is another example of one of the M blocks. In this example, the K RBs can be 2 RBs. The 2 RBs can be RBs over 2 symbols. On each of the 2 symbols, the 2 RBs include 1 RB. Each of the 2 RBs can include 6 REs. The spacing between adjacent REs in the 6 REs is 2 REs.

[0154] For another example, the reference signal is DMRS. FIG. 4C is another example of one of the M blocks. In this example, the K RBs can be 4 RBs. The 4 RBs can be RBs over 4 symbols, i.e., symbol 2, symbol 5, symbol 8, and symbol 11. Each of the 4 RBs can include 6 REs. The spacing between adjacent REs in the 6 REs is 2 REs.

[0155] For another example, the reference signal is CSI-RS. FIG. 4D is another example of one of the M blocks. In this example, the K RBs can be 1 RB, i.e., a RB over symbol 5. The 1 RB can include 3 REs. The spacing between adjacent REs in the 3 REs is 4 REs.

[0156] In the above examples, on each of the one or more symbols, the K RBs in a block can include 1 RB. Alternatively, on the basis of the above examples, if each block is extended by an integer multiple in the frequency domain, on each of the one or more symbols, the K RBs in a block can include multiple RBs.

[0157] For example, the reference signal is PRS. FIG. 7A (a) is another example of one of the M blocks. In this example, the K RBs can be 4 RBs. The 4 RBs can be RBs over 2 symbols. On each of the 2 symbols, the 4 RBs include 2 RBs. Each of the 2 RBs can include 6 REs. The spacing between adjacent REs in the 6 REs is 2 REs.

[0158] For another example, the reference signal is PRS. FIG. 7A (b) is another example of one of the M blocks. In this example, the K RBs can be 12 RBs. The 12 RBs can be RBs over 6 symbols. On each of the 6 symbols, the 12 RBs include 2 RBs. Each of the 12 RBs can include 2 REs. The spacing between the 2 REs is 6 REs.

[0159] For another example, the reference signal is DMRS. FIG. 7B shows another example of one of the M blocks. In this example, the K RBs can be 8 RBs. The 8 RBs can be RBs on 4 symbols, i.e., symbol 2, symbol 5, symbol 8 and symbol 11. On each of the 4 symbols, the 8 RBs include 2 RBs. Each of the 8 RBs can include 6 REs. The spacing between adjacent REs in the 6 REs is 2 REs.

[0160] For another example, the reference signal is CSI-RS. FIG. 7C shows another example of one of the M blocks. In this example, the K RBs can be 2 RBs, i.e., 2 RBs on symbol 5. Each of the 2 RBs can include 3 REs. The spacing between adjacent REs in the 3 REs is 4 REs.

[0161] Optionally, different blocks of the M blocks can occupy the same time domain position but different frequency domain positions; in other words, different blocks of the M blocks have the same time domain position but different frequency domain positions; or different blocks of the M blocks can correspond to the same time unit but different frequency units; or the first resource includes (or is divided into) M blocks in the frequency domain. The M blocks can be continuous or discontinuous in the frequency domain. For example, as shown in FIG. 8, the M blocks can include block #1, block #2, …, and block #M. Each block can include K RBs, denoted as RB #1, RB #2, …, and RB #K, and K is taken as an example of 3 in the figure. Each of the K RBs can include one or more REs. FIG. 8 shows an example in which the K RBs include RBs on one symbol. The K RBs can also include RBs on multiple symbols, without limitation.

[0162] The second resource can include N blocks of the M blocks, N being a positive integer. In this case, N can be less than M; in other words, the second resource can include part of the first resource; or in other words, the second resource can include part of the M blocks. For example, the N blocks can include part of the M blocks shown in FIG. 8.

[0163] Optionally, the N blocks can satisfy at least one of the following conditions 1 to condition 2:

[0164] Condition 1: The frequency baselines between the N blocks cover completely.

[0165] For example, the length of the minimum frequency baseline between the M blocks is B1, and the length of the maximum frequency baseline is B2. The frequency baselines between the N blocks cover completely, which can be understood as follows: a frequency baseline with a length of p×B1, p = 1, 2, …, can be constructed by the N blocks. The specific content of the frequency baseline between the blocks can be referred to the description of the frequency baseline between two blocks in the explanation of the terms above, which will not be repeated here.

[0166] For example, the M blocks are 7 blocks shown in FIG. 9A, denoted as block #1 to block #7. The distance between each two adjacent blocks in the 7 blocks is the same. The N blocks are 4 blocks shown in FIG. 9B, denoted as block #1, block #2, block #5 and block #7. The frequency baselines with length of p x B1, p = 1, 2, …, 6, can be constructed by the N blocks. Therefore, the frequency baselines between the N blocks cover the whole.

[0167] The frequency baselines covering the whole can be used to balance the ranging resolution and the unambiguous distance of ranging, so as to ensure the performance when ranging according to the N blocks. Therefore, by the method, the frequency domain resource occupied by the sensing signal can be reduced while ensuring the ranging performance, and the waste of frequency domain resource can be avoided or reduced.

[0168] Optionally, the N blocks can be the blocks with the least number of blocks satisfying condition 1. For example, if the M blocks are 7 blocks shown in FIG. 9A, the following combinations 1 to 7 can all satisfy condition 1: combination 1: block #1, block #2, block #5 and block #7; combination 2: block #1, block #2, block #3, block #5 and block #7; combination 3: block #1, block #2, block #4, block #5 and block #7; combination 4: block #1, block #2, block #5, block #6 and block #7; combination 5: block #1, block #2, block #3, block #4, block #5 and block #7; combination 6: block #1, block #2, block #3, block #5, block #6 and block #7; combination 7: block #1, block #2, block #4, block #5, block #6 and block #7. Combination 1 includes the least number of blocks, and therefore the N blocks can be the blocks in combination 1, i.e. the N blocks can include: block #1, block #2, block #5 and block #7. In this way, the frequency domain resource occupied by the sensing signal can be reduced as much as possible while ensuring the performance when ranging according to the N blocks, and the waste of frequency domain resource can be avoided or reduced.

[0169] It should be understood that the above is described by taking the M blocks as 7 blocks as an example. The value of M can be larger or smaller, and is not limited.

[0170] Condition 2: the column correlation of the N blocks is the least.

[0171] The specific content of the least column correlation can refer to the description of the least column correlation in the explanation of the terms in the above, except that the frequency points are replaced by blocks, the Q candidate frequency points are replaced by M blocks, and the R frequency points are replaced by N blocks, which will not be described herein again.

[0172] The least column correlation can make the sidelobe of the ranging by the N blocks as small as possible, so as to improve the ranging performance.

[0173] The relationship between the M blocks and the N blocks will be described below.

[0174] Example 1: The subcarrier interval is 60 kilohertz (KHz), and one carrier includes 138 RBs in 1 symbol, and the bandwidth of each RB can be 0.72 megahertz (MHz). The M blocks can occupy 1 symbol in the time domain; each of the M blocks can include 1 RB, that is, K is 1; the M blocks include 138 blocks, so the bandwidth occupied by the M blocks in the frequency domain can be 99.36 MHz. The M blocks are sorted according to the first rule, and the sequence numbers of the N blocks in the M blocks can be: 1, 2, 3, 4, 12, 20, 28, 43, 58, 73, 88, 103, 110, 117, 124, 131, 135, 136, 137, and 138. The redundancy quantity of each frequency baseline corresponding to this example can be as shown in FIG. 10A. Wherein, the abscissa represents the frequency baseline, and the unit of the frequency baseline can be 1 block; the ordinate can be the number of redundancies. The first rule can be pre-set, for example, specified by a protocol; or can be determined by the first device; or can be notified by the third device to the first device, without limitation. Illustratively, the first rule can be the order from high to low or from low to high.

[0175] Example 2: The subcarrier interval is 60 KHz, and one carrier includes 138 RBs in 1 symbol, and the bandwidth of each RB can be 0.72 MHz. The M blocks can occupy 1 symbol in the time domain; each of the M blocks can include 3 RBs, that is, K is 3; the M blocks include 46 blocks, so the bandwidth occupied by the M blocks in the frequency domain can be 99.36 MHz. The M blocks are sorted according to the first rule, and the sequence numbers of the N blocks in the M blocks can be: 1, 2, 4, 7, 14, 21, 28, 35, 39, 43, 44, and 46. The redundancy quantity of each frequency baseline corresponding to this example can be as shown in FIG. 10B. Wherein, the abscissa represents the frequency baseline, and the unit of the frequency baseline can be 1 block; the ordinate can be the number of redundancies. The specific content of the first rule can refer to the description of the first rule in Example 1, and will not be repeated.

[0176] Example 3: The subcarrier spacing is 60 KHz, one carrier includes 552 RBs in 1 symbol, and the bandwidth of each RB can be 0.72 MHz. The M blocks can occupy 1 symbol in the time domain; each of the M blocks can include 4 RBs, that is, K is 4; the M blocks include 138 blocks, so that the bandwidth occupied by the M blocks in the frequency domain can be 394.44 MHz. The M blocks are sorted according to the first rule, and the sequence numbers of the N blocks in the M blocks can be: 1, 2, 3, 4, 12, 20, 28, 43, 58, 73, 88, 103, 110, 117, 124, 131, 135, 136, 137, and 138. The redundancy amount of each frequency baseline corresponding to this example can be as shown in FIG. 10A. Wherein, the abscissa represents the frequency baseline, and the unit of the frequency baseline can be 1 block; the ordinate can be the number of redundancies. The specific content of the first rule can refer to the description of the first rule in Example 1, and will not be repeated here.

[0177] The determination manners of the first resource and the second resource are described below respectively.

[0178] There can be various determination manners of the first resource, for example, manner a1 or manner a2.

[0179] Manner a1: The third device can send second information; correspondingly, the first device can receive the second information.

[0180] The second information can be used to determine (or indicate or configure) the first resource configured for the reference signal; in other words, the first device can determine the first resource according to the second information. The specific content of the second information used to determine the first resource is not limited in the application. Illustratively, the reference signal can be PRS, and the second information can include at least one of the following: a comb size, used to indicate (or determine) the value of the comb division; a first symbol in a slot, used to indicate (or determine) the first symbol occupied by the first resource; a number of symbols, used to indicate (or determine) the number of symbols occupied by the first resource; a comb offset for the first symbol, used to indicate (or determine) the position of the RE in the first symbol occupied by the first resource; a slot offset with respect to the first slot of a DL PRS resource set, used to indicate (or determine) the slot occupied by the first resource. In this way, the first device can determine the first resource according to the second information.

[0181] The second information can be carried in a conventional message or in a new message. For example, the second information can be carried in an RRC message and / or a DCI.

[0182] In the manner a1, the first device can quickly and accurately determine the first resource according to the second information. In this manner, the first resource is indicated by the second information from the third device, so that the third device can flexibly configure the first resource for the first device.

[0183] Manner a2: The first resource is pre-configured, for example, specified by a protocol. In this way, the first device can quickly determine the first resource.

[0184] As mentioned above, the first information can be used to determine the second resource in the first resource. Alternatively, the first information can be used to indicate N blocks included in the second resource. The indication can be in various manners, for example, at least one of manners b1 to b4.

[0185] Manner b1: The first information can include: indices (or serial numbers or IDs) of the N blocks; or in other words, the first information can include: indices (or serial numbers or IDs) of each block in the N blocks.

[0186] For example, if the first information includes: {1 2 3 4 12 20 28 43 58 73 88 103 110 117 124 131 135 136 137 138}, it means that the serial numbers of the N blocks in the M blocks can be: 1, 2, 3, 4, 12, 20, 28, 43, 58, 73, 88, 103, 110, 117, 124, 131, 135, 136, 137 and 138. The serial numbers of the N blocks in the M blocks can be obtained by sorting the M blocks according to a first rule. The specific content of the first rule can refer to the description of the first rule in Example 1, and will not be repeated here.

[0187] In this manner b1, the first information can accurately indicate the N blocks in the second resource.

[0188] Manner b2: The first information can include: an index (or serial number or ID) of a reference block in the N blocks, and an index difference (or serial number difference or ID difference) between adjacent blocks in the N blocks.

[0189] Alternatively, the reference block in the N blocks can be one of: the first block in the N blocks, the last block in the N blocks, or the block with the smallest frequency in the N blocks, or the block with the largest frequency in the N blocks. The index difference between adjacent blocks in the N blocks can be replaced by: an index difference between each two adjacent blocks in the N blocks, or an index difference between adjacent blocks in the N blocks.

[0190] For example, the reference block in the N blocks is the first block in the N blocks. If the index of the reference block in the N blocks in the first information is 1, and the index difference of the adjacent blocks in the N blocks is {1 1 1 8 8 8 15 15 15 15 15 7 7 7 7 4 1 1 1}, the sequence number of the N blocks in the M blocks can be 1, 2, 3, 4, 12, 20, 28, 43, 58, 73, 88, 103, 110, 117, 124, 131, 135, 136, 137, and 138. The sequence number of the N blocks in the M blocks can be obtained by sorting the M blocks according to the first rule. The specific content of the first rule can be referred to the description of the first rule in Example 1, and will not be described here.

[0191] In this way b2, the first information can include the index of the reference block in the N blocks and the index difference of the adjacent blocks in the N blocks, without including the index of each block in the N blocks. Compared with including the index of each block in the N blocks, this way can reduce the overhead of the first information, thereby saving the signaling overhead and reducing the transmission resources required by the first information.

[0192] Way b3: The first information can include a first bitmap. The bits included in the first bitmap can correspond to each block in the M blocks one by one, and the value of the bit included in the first bitmap is used to determine the N blocks; or the first bitmap can include M bits corresponding to the M blocks, and the value of the M bits can be used to determine the N blocks. The M bits can be part or all of the bits included in the first bitmap.

[0193] Optionally, the first bit is any bit in the M bits. If the value of the first bit is a first value (for example, 1 or 0), the block corresponding to the first bit in the M blocks belongs to the N blocks; and / or, if the value of the first bit is a second value (for example, 0 or 1), the block corresponding to the first bit in the M blocks does not belong to the N blocks. The first value and the second value are different. For example, if the first bitmap is {1 1 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 1 0 1}, the first value is 1, and the second value is 0, the sequence number of the N blocks in the M blocks can be 1, 2, 4, 7, 14, 21, 28, 35, 39, 43, 44, and 46. The sequence number of the N blocks in the M blocks can be obtained by sorting the M blocks according to the first rule. The specific content of the first rule can be referred to the description of the first rule in Example 1, and will not be described here.

[0194] Through the manner b3, the first information can accurately indicate the N blocks through the first bitmap. In addition, in the manner, the first information does not need to include the index or the index difference of the N blocks, so that when the index of the N blocks is large, the overhead of the first information can be reduced, thereby the signaling overhead can be saved and the transmission resource required by the first information can be reduced.

[0195] Manner b4: The first information can include a first index. The first index belongs to at least one index, and the at least one index corresponds to at least one group of blocks in a one-to-one manner. The N blocks are a group of blocks corresponding to the first index.

[0196] The correspondence between the at least one index and the at least one group of blocks (hereinafter referred to as the first correspondence) can be embodied in various manners. For example, the first correspondence can be embodied in the form of a table. Table 1 shows a possible example of the first correspondence. For example, if the first index included in the first information is 1, it means that the serial numbers of the N blocks in the M blocks can be: 1, 2, 3, 4, 12, 20, 28, 43, 58, 73, 88, 103, 110, 117, 124, 131, 135, 136, 137, and 138. For another example, if the first index included in the first information is 2, it means that the serial numbers of the N blocks in the M blocks can be: 1, 2, 4, 7, 14, 21, 28, 35, 39, 43, 44, and 46. The serial numbers of the N blocks in the M blocks can be obtained by sorting the M blocks according to a first rule. The specific content of the first rule can refer to the description of the first rule in Example 1, and will not be repeated here. Table 1 is an example in which the number of indexes included in the at least one index is 2 and the number of groups corresponding to the at least one group of blocks is 2. The number of indexes included in the at least one index can be more or less, and the number of groups corresponding to the at least one group of blocks can be more or less.

[0197] Table 1

[0198] The first correspondence can be pre-set, for example, specified by a protocol, or the first correspondence can be determined by the first device, or the first correspondence can be notified to the first device by the third device.

[0199] Through the manner b4, the first information can accurately indicate the N blocks through the first index. In addition, in the manner, the first information only needs to include the first index, and the signaling overhead is small, thereby the transmission resource required by the first information can be reduced.

[0200] Optionally, the first information can also indicate at least one of the following parameters: a reference signal corresponding to the first resource, a number of RBs included in each block in the M blocks on 1 symbol, or a subcarrier spacing.

[0201] In some examples, the first information can indicate the at least one parameter.

[0202] For example, the first information can comprise: field #1 to field #3. Wherein, field #1 can be used to indicate the reference signal corresponding to the first resource, field #2 can be used to indicate the number of RBs included by each of the M blocks in 1 symbol, and field #3 can be used to indicate the subcarrier spacing. If the reference signal indicated by field #1 is PRS, the number of RBs indicated by field #2 is 1, and the subcarrier spacing indicated by field #3 is 60 KHz, then the first resource can be the physical mapping resource of PRS, the first resource can comprise M blocks, each of the M blocks contains 1 RB in 1 symbol, and the subcarrier spacing of the first resource is 60 KHz. In this way, the first device can determine the time domain position and the frequency domain position of the N blocks in the second resource according to the first information.

[0203] For another example, the first information can comprise: field #1 to field #2. Wherein, field #1 can be used to indicate the reference signal corresponding to the first resource, and field #2 can be used to indicate the number of RBs included by each of the M blocks in 1 symbol. If the reference signal indicated by field #1 is PRS, and the number of RBs indicated by field #2 is 1, then the first resource can be the physical mapping resource of PRS, the first resource can comprise M blocks, and each of the M blocks contains 1 RB in 1 symbol. In this way, the first device can determine the time domain position and the frequency domain position of the N blocks in the second resource according to the first information.

[0204] For another example, the first information can comprise: field #2, which can be used to indicate the number of RBs included by each of the M blocks in 1 symbol. If the number of RBs indicated by field #2 is 1, then the first resource can be the physical mapping resource of any reference signal, and each of the M blocks included by the first resource contains 1 RB in 1 symbol. In this way, the first device can determine the time domain position and the frequency domain position of the N blocks in the second resource according to the first information.

[0205] It should be understood that when the first information comprises a plurality of parameters, the plurality of parameters can be carried in the same message or in different messages, without limitation.

[0206] In other examples, the first information can implicitly indicate the at least one parameter. For example, the first information can comprise information that has a corresponding relationship with the at least one parameter.

[0207] For example, the first information can include a first index. The first index belongs to at least one index, and the at least one index can correspond to at least one group of parameters one by one. The at least one index can correspond to the at least one group of parameters in a plurality of ways. For example, the correspondence between the at least one index and the at least one group of parameters (hereinafter referred to as a second correspondence) can be embodied in the form of a table. Table 2 shows one possible example of the second correspondence. For example, if the first information includes a first index of 1, it means that the reference signal corresponding to the first resource is PRS, each of the M blocks includes 1 RB on one symbol, the subcarrier spacing is 60 KHz, and the sequence number of the N blocks in the M blocks can be 1, 2, 3, 4, 12, 20, 28, 43, 58, 73, 88, 103, 110, 117, 124, 131, 135, 136, 137, and 138. For another example, if the first information includes a first index of 2, it means that the reference signal corresponding to the first resource is DMRS, each of the M blocks includes 4 RBs on one symbol, the subcarrier spacing is 60 KHz, and the sequence number of the N blocks in the M blocks can be 1, 2, 4, 7, 14, 21, 28, 35, 39, 43, 44, and 46. The sequence number of the N blocks in the M blocks can be obtained by sorting the M blocks according to a first rule; the specific content of the first rule can refer to the description of the first rule in Example 1, and will not be repeated here. Table 2 takes an example in which the number of indexes included in the at least one index is 4, and the number of groups corresponding to the at least one group of parameters is 4. The number of indexes included in the at least one index can be more or less, and the number of groups corresponding to the at least one group of parameters can be more or less. In addition, the number of parameters in the group of parameters corresponding to each index in the at least one index can be more or less.

[0208] Table 2

[0209] The first information can be carried in a conventional message or in a new message. For example, the first information can be carried in a radio resource control (RRC) message or downlink control information (DCI). The first information can be referred to as a mask, mask information, a block sparse pattern, a sparse pattern, a PRS-block sparse pattern, a PDSCH-DMRS-block sparse pattern, or a CSI-RS-block sparse pattern.

[0210] The first information and the second information can be carried in the same message or in different messages.

[0211] Optionally, before sending the first information, the third device can determine the first information; or, before sending the first information, the third device can determine the second resource, thereby determining the first information used to determine the second resource. For example, the third device can select N blocks from the M blocks, thereby determining the second resource including the N blocks, and further determining the first information. For another example, the third device can select N blocks from the M blocks according to the above condition 1 and / or condition 2, thereby determining the second resource including the N blocks, and further determining the first information.

[0212] S602: The third device can send the first information; correspondingly, the second device can receive the first information.

[0213] The specific content of S602 can refer to S601, except that the first device is replaced by the second device, and thus is not described herein.

[0214] In some possible manners, the first information can be broadcast information of the third device. In this case, S601 and S602 can be combined as: the third device can send the first information; correspondingly, the first device can receive the first information, and the second device can receive the first information.

[0215] In another possible manner, the first information can be unicast information of the third device. In this case, the third device can send the first information to the first device and the second device respectively. The order in which the third device sends the first information to the first device and the second device is not limited.

[0216] S603: The first device can send a reference signal on the second resource; correspondingly, the second device can receive the reference signal on the second resource. The reference signal is used for sensing.

[0217] Optionally, S603 can be replaced by at least one of the following: the first device can send a reference signal; correspondingly, the second device can receive the reference signal, which can be carried on the second resource, and the reference signal can be used for sensing. Alternatively, the first device can send a sensing signal on the second resource; correspondingly, the second device can receive the sensing signal on the second resource, and the sensing signal is a part of the reference signal mapped to the second resource. Alternatively, the first device can send a sensing signal; correspondingly, the second device can receive the sensing signal, which can be carried on the second resource, and the sensing signal is a part of the reference signal mapped to the second resource. The sensing signal being a part of the reference signal mapped to the second resource can be understood as follows: the reference signal is mapped to M blocks in the first resource according to a mapping rule, and the sensing signal includes the reference signal mapped to N blocks, or the sensing signal includes a part of the reference signal mapped to N blocks. The mapping rule can be pre-set, for example, specified by a protocol, or determined by the first device, or notified to the first device by another device (e.g., a third device).

[0218] Optionally, receiving the reference signal can be replaced by or understood as receiving an echo signal of the reference signal. Receiving the sensing signal can be replaced by or understood as receiving an echo signal of the sensing signal.

[0219] Exemplarily, the first device can send a reference signal in one beam direction; the reference signal first reaches the sensing target through wireless transmission, and then reaches the second device after being reflected by the sensing target, i.e., the second device can receive the reference signal, as shown in S603a and S603b in FIG. 6. It should be understood that the reference signal can be transmitted from the first device to the second device through one or more transmission paths, and only one transmission path is shown in the figure.

[0220] S604: The second device can perform sensing according to the reference signal.

[0221] Optionally, S604 can also be replaced by at least one of the following: the second device processes the reference signal; the second device processes an echo signal of the reference signal; or the second device performs sensing according to the echo signal of the reference signal.

[0222] The second device can perform sensing according to the reference signal to obtain a sensing result. The sensing result can be replaced by sensing data. The sensing result can be, for example, data such as a position or a speed of a sensing target, without limitation. For example, the second device can process the reference signal according to the reception power information corresponding to the reference signal, or the second device can process the reference signal according to the transmission delay information corresponding to the reference signal, or the second device can process the reference signal according to the reception power information corresponding to the reference signal and the transmission delay information corresponding to the reference signal. The specific implementation process of the second device performing sensing according to the reference signal is not limited in this application.

[0223] Optionally, in the method, S602 is an optional step. For example, the method shown in FIG. 6 does not include S602. In S603, the first device can send the reference signal on the second resource, and the second device can detect the reference signal on the first resource, so as to receive the reference signal transmitted on the second resource. The manner in which the second device determines the first resource can refer to the description of the “determination manner of the first resource” in S601, except that the first device is replaced by the second device, and details are not repeated.

[0224] Through the method shown in FIG. 6, the first device can send the reference signal on part of the resources in the physical mapping resource of the reference signal, and the reference signal can be used for sensing, so as to reduce the frequency domain resource used for transmitting the sensing signal, reduce or avoid the redundancy of the frequency baseline between the resources actually sending the sensing signal, and further reduce or avoid the waste of the frequency domain resource.

[0225] In addition, each of the M blocks can include K RBs. If K is an integer greater than 1, in the method, the first information can indicate N blocks of the M blocks, without indicating whether each RB belongs to the N blocks, so as to save signaling overhead and reduce the transmission resource required by the first information. In the method, sparse design can be performed in block granularity, without performing sparse design in RB granularity. Since the number of blocks can be less than the number of RBs, the complexity of sparse design can be reduced.

[0226] In addition, the first device can send the reference signal for sensing on a part of the physical mapping resource of the reference signal, and other devices can send the reference signal for sensing on another part of the physical mapping resource of the reference signal by using a similar method. In this way, multiple devices can send the reference signal for sensing at the same time, so that the same target can be sensed at the same time. Compared with sensing a target by a single device, the method can improve the sensing performance. In addition, multiple devices can send the reference signal for sensing through frequency-division resources at the same time, which can improve the sensing performance compared with sending the sensing signal through time-division resources. This is because: if the sensing signal is sent through time-division resources, the target can be sensed at different time instants, and the state of the target at different time instants is sensed, so there is a performance loss, which affects the sensing performance; if multiple devices send the reference signal for sensing through frequency-division resources at the same time, the target can be sensed at the same time, so that the sensing performance can be improved.

[0227] The effect of the method shown in FIG. 6 will be further described below taking M blocks as 7 uniform blocks in the frequency domain as an example.

[0228] For example, the M blocks are 7 blocks shown in FIG. 9A, which are respectively denoted as block #1 to block #7. The interval between every two adjacent blocks in the 7 blocks is the same. The frequency baseline formed by the 7 frequency points can be as shown in FIG. 9A, and the redundancy of each frequency baseline can be as shown in FIG. 9C. It can be seen that, in the frequency baseline formed by the 7 blocks, except that the two frequency baselines of -6B1 and 6B1 do not have redundancy, the rest of each frequency baseline has redundancy, thereby wasting the frequency domain resources.

[0229] If the N blocks are 4 blocks shown in FIG. 9B, which are respectively block #1, block #2, block #5 and block #7. The frequency baseline formed by the 4 blocks can be as shown in FIG. 9B, and the redundancy of each frequency baseline can be as shown in FIG. 9D. It can be seen that, in the frequency baseline formed by the 4 blocks, except that the frequency baseline of 0 has redundancy, the rest of each frequency baseline does not have redundancy, thereby reducing the waste of frequency domain resources.

[0230] In some possible manners, the method shown in FIG. 6 further includes S605a or S605b:

[0231] S605a: The third device sends the third information; and correspondingly, the first device receives the third information.

[0232] The third information can be used to indicate (or enable or activate or trigger) transmission of the reference signal on the second resource; or the third information can be used to indicate (or enable or activate or trigger) transmission of the reference signal on part of the first resource; or the third information is used to indicate to start (or initiate) the function based on the block sparse reference signal sensing. In some examples, if the third information has a third value (e.g., 0 or 1), the third information can indicate transmission of the reference signal on the second resource. In other examples, the third information can be a message specially used to indicate transmission of the reference signal on the second resource.

[0233] The third information can be carried in a conventional message (e.g., a sensing service request) or in a new message. For example, the third information can be carried in an RRC message or a DCI. The third information can have various names, such as mask enable information, block sparse enable information, block sparse activation information, PRS-block sparse enable information, PDSCH-DMRS-block sparse enable information, or CSI-RS-block sparse enable information.

[0234] In this way, the third device can indicate the first device to transmit the reference signal on the second resource in a timely manner through the third information. In this way, the third device can indicate the first device to transmit the reference signal on the second resource, thereby improving the flexibility of the third device in managing the first device.

[0235] S605b: The first device can send fourth information; and correspondingly, the third device can receive the fourth information.

[0236] The fourth information can be used to request (or indicate or enable or activate or trigger) transmission of the reference signal on the second resource; or the fourth information can be used to request (or indicate or enable or activate or trigger) transmission of the reference signal on part of the first resource; or the fourth information is used to request (or indicate or enable or activate or trigger) to start (or initiate) the function based on the block sparse reference signal sensing. In some examples, if the fourth information has a fourth value (e.g., 0 or 1), the fourth information can request transmission of the reference signal on the second resource. In other examples, the fourth information can be a message specially used to request transmission of the reference signal on the second resource.

[0237] The fourth information can be carried in a conventional message (e.g., a sensing service request) or in a new message. For example, the fourth information can be carried in an RRC message or uplink control information (UCI). The fourth information can be named in various ways, such as mask enabling information, block sparsity enabling information, block sparsity activation information, PRS block sparsity enabling information, PDSCH-DMRS block sparsity enabling information, or CSI-RS block sparsity enabling information.

[0238] In this way, the first device can request the transmission of the reference signal on the second resource in a timely manner through the fourth information. In this way, the first device can request the transmission of the reference signal on the second resource, thereby improving the flexibility of the first device.

[0239] Optionally, any one of S605a and S605b can be performed before S603. The order of S601-S602 is not limited to S605a and S605b.

[0240] In some possible manners, the method shown in FIG. 6 further includes S606a or S606b:

[0241] S606a: The third device sends third information; correspondingly, the second device receives the third information.

[0242] In this way, the third device can instruct the second device to transmit the reference signal on the second resource in a timely manner through the third information. In this way, the third device can instruct the second device to transmit the reference signal on the second resource, thereby improving the flexibility of the third device in managing the second device.

[0243] S606b: The second device can send fourth information; correspondingly, the third device can receive the fourth information.

[0244] In this way, the second device can request the transmission of the reference signal on the second resource in a timely manner through the fourth information. In this way, the second device can request the transmission of the reference signal on the second resource, thereby improving the flexibility of the second device.

[0245] The specific content of S606a and S606b can be referred to S605a and S605b respectively, and will not be repeated here.

[0246] Optionally, any one of S606a and S606b can be performed before S603. The order of S601-S602 is not limited to S606a and S606b.

[0247] Optionally, S605b and S606a can be combined, for example, after receiving the fourth information from the first device, the third device can send the third information to the second device, i.e., S606a can be after S605b. Alternatively, S605a and S606b can be combined, for example, after receiving the fourth information from the second device, the third device can send the third information to the first device, i.e., S605a can be after S606b. Alternatively, S605a and S606a can be combined, in which case the order of S605a and S606a is not limited.

[0248] In some possible manners, the method shown in FIG. 6 further includes S607:

[0249] S607: The first device sends fifth information; correspondingly, the third device receives the fifth information.

[0250] The fifth information can include first demand information for indicating the sensing demand and / or capability information of the first device. The fifth information is used to determine the first information; or in other words, the fifth information can be used to determine the second resource used for transmitting the reference signal for sensing.

[0251] The sensing demand can also be replaced by a sensing requirement or a sensing capability requirement. For example, the sensing demand includes ranging resolution, etc. The first demand information can explicitly indicate the sensing demand, for example, the first demand information can include the sensing demand; or the first demand information can implicitly indicate the sensing demand, for example, the first demand information can include information corresponding to the sensing demand.

[0252] Optionally, the capability information of the first device can indicate at least one of the following: a frequency band or a bandwidth supported by the first device. For example, the frequency band supported by the first device is frequency range (FR) 1, FR2 or FR3. The frequency range corresponding to FR1 is 410-7125 MHz, the frequency range corresponding to FR2 is 24250-52600 MHz, and the frequency range corresponding to FR3 is 6425-7125 MHz. For example, the bandwidth supported by the first device is the maximum bandwidth supported by the first device.

[0253] As described above, the fifth information can be used to determine the first information. This is described below in combination with the content of the fifth information.

[0254] 1. For the sensing requirement: In some implementations, the ranging resolution can be related to a maximum frequency baseline of the N blocks. The larger the maximum frequency baseline of the N blocks, the smaller the value of the ranging resolution, and the better the ranging performance; the smaller the maximum frequency baseline of the N blocks, the larger the value of the ranging resolution, and the worse the ranging performance. In this way, the third device can determine the maximum frequency baseline of the N blocks according to the ranging resolution, and thus determine the first information for determining the N blocks. In this way, the third device can determine the N blocks that match the sensing requirement, and perform sensing according to the reference signals transmitted on the N blocks, which can improve the sensing performance.

[0255] 2. For the capability information of the first device: Optionally, the N blocks can belong to a frequency band supported by the first device; and / or, the total bandwidth of the N blocks is less than or equal to the bandwidth supported by the first device. In this way, the third device can determine the N blocks according to the frequency band and / or the bandwidth supported by the first device, and thus determine the first information for determining the N blocks. In this way, the third device can determine the N blocks that match the capability of the first device.

[0256] The fifth information can be carried in a conventional message or in a new message. Optionally, when the fifth information can include the first requirement information for indicating the sensing requirement and the capability information of the first device, the first requirement information and the capability information of the first device can be carried in the same message or in different messages. For example, the first requirement information can be carried in the sensing capability requirement, and the capability information of the first device can be carried in the message for exchanging the capability information.

[0257] Optionally, S607 can be performed before S601 and / or S602.

[0258] In this way, the second resource for transmitting the reference signal can be determined according to the sensing requirement and / or the capability of the first device, so that the second resource that matches the sensing requirement and / or the capability of the first device can be determined. Since the second resource can transmit the reference signal for sensing, this way can improve the sensing performance.

[0259] In some possible ways, the method shown in FIG. 6 further includes S608:

[0260] S608: The second device sends sixth information; and correspondingly, the third device receives the sixth information.

[0261] The sixth information can include second requirement information for indicating the sensing requirement and / or capability information of the second device. The sixth information can be used to determine the first information; or in other words, the sixth information can be used to determine the second resource for transmitting the reference signal for sensing.

[0262] The specific content of S608 can refer to S607, except that the first device is replaced by the second device, the fifth information is replaced by the sixth information, and the first perception requirement is replaced by the second perception requirement, which will not be repeated here.

[0263] Optionally, S608 can be before S601 and / or S602. The order of S607 and S608 is not limited.

[0264] In this way, the second resource for transmitting the reference signal can be determined according to the perception requirement and / or the capability of the second device, so that the second resource that is adapted to the perception requirement and / or the capability of the second device can be determined. Since the second resource can transmit the reference signal for perception, this way can improve the perception performance.

[0265] Embodiments of the present application provide another communication method. The method is one possible example of the method shown in FIG. 6. FIG. 11 is a flowchart of a communication method provided by embodiments of the present application. As shown in FIG. 11, the method comprises:

[0266] S1101: The first device sends a perception service request to the third device.

[0267] The perception service request is used to request perception. The perception service request can include fourth information. The fourth information can be used to request (or indicate or enable or activate or trigger) transmission of the reference signal on the second resource. The specific content of the fourth information can refer to the description of the fourth information in S605b, which will not be repeated here.

[0268] Optionally, S1101 can be replaced by at least one of the following: the second device sends a perception service request to the third device, and the perception service request can include the fourth information; or the third device can send a perception service request to the first device and / or the second device, and the perception service request can include the third information, which can be used to indicate (or enable or activate or trigger) transmission of the reference signal on the second resource. The specific content of the third information can refer to the description of the third information in S605a, which will not be repeated here.

[0269] S1102: The first device sends the capability information of the first device to the third device.

[0270] The specific content of the capability information of the first device can refer to the description of the capability information of the first device in S607, which will not be repeated here.

[0271] S1103: The second device sends the capability information of the second device to the third device.

[0272] The specific content of the capability information of the second device can refer to the description of the capability information of the second device in S607, except that the first device is replaced by the second device, which will not be repeated here.

[0273] S1104: The first device sends, to the third device, first demand information indicating the sensing demand.

[0274] The specific content of the first demand information can refer to the description of the first demand information in S607, and will not be repeated here.

[0275] Optionally, the sensing demand indicated by the first demand information can also include a refresh rate and the like.

[0276] S1105: The second device sends, to the third device, second demand information indicating the sensing demand.

[0277] The specific content of the second demand information can refer to the description of the first demand information in S607, except that the first demand information is replaced by the second demand information, and will not be repeated here.

[0278] Optionally, the sensing demand indicated by the second demand information can also include a refresh rate and the like.

[0279] The order of any two steps in S1102 to S1105 is not limited.

[0280] S1106: The third device sends, to the first device, first information. The first information can be used to determine the second resource in the first resource.

[0281] S1107: The third device sends, to the second device, the first information. The first information can be used to determine the second resource in the first resource.

[0282] Optionally, in S1106 and S1107, the first information can be contained in a message (hereinafter referred to as message #1) used to configure the physical mapping resource (i.e., the first resource) of the reference signal; in other words, the message #1 can indicate the physical mapping resource of the reference signal (or the time-frequency resource mapping relationship of the reference signal), and can also be used to determine the second resource in the first resource. For example, if the reference signal is PRS, the message #1 can be a PRS reference signal parameter configuration message. For another example, if the reference signal is DMRS, the message #1 can be a DMRS reference signal parameter configuration message. For another example, if the reference signal is CSI-RS, the message #1 can be a CSI-RS reference signal parameter configuration message.

[0283] The order of S1106 and S1107 is not limited.

[0284] S1108: The first device can send a reference signal on the second resource; correspondingly, the second device can receive the reference signal on the second resource. The reference signal is used for sensing.

[0285] Exemplarily, the first device can send the reference signal in one beam direction; the reference signal can be transmitted to the sensing target first, and then be reflected by the sensing target to the second device, i.e., the second device can receive the reference signal, as shown in S1108a and S1108b in FIG. 11. It should be understood that the reference signal can be transmitted from the first device to the second device through one or more transmission paths, and only one is shown in the figure.

[0286] S1109: The second device can perform sensing according to the reference signal.

[0287] The specific content of S1106 to S1109 can refer to S601 to S604, and will not be repeated here.

[0288] S1110: The second device sends the sensing result to the third device.

[0289] The method shown in FIG. 11 can achieve the effect of the method shown in FIG. 6, and will not be repeated here.

[0290] Embodiments of the present application provide another communication method. This method is another possible example of the method shown in FIG. 6. In this example, the first device and the third device are located in the same device, and hereinafter the first device and the third device are collectively referred to as the first device. FIG. 12 is a flowchart of a communication method provided by an embodiment of the present application. As shown in FIG. 12, the method comprises:

[0291] S1201: The second device sends a sensing service request to the first device.

[0292] The sensing service request is used to request sensing. The sensing service request can include fourth information. The fourth information can be used to request (or indicate or enable or activate or trigger) the transmission of the reference signal on the second resource. The specific content of the fourth information can refer to the description of the fourth information in S605b, and will not be repeated here.

[0293] Optionally, S1201 can be replaced by at least one of the following: the first device can send a sensing service request to the second device, and the sensing service request can include third information, which can be used to indicate (or enable or activate or trigger) the transmission of the reference signal on the second resource. The specific content of the third information can refer to the description of the third information in S605a, and will not be repeated here.

[0294] S1201 is an optional step.

[0295] S1202: The second device sends the capability information of the second device to the first device.

[0296] The specific content of the capability information of the second device can refer to the description of the capability information of the second device in S607, except that the first device is replaced by the second device, and will not be repeated here.

[0297] S1203: The second device sends, to the first device, second demand information indicating a sensing demand.

[0298] The specific content of the second demand information can refer to the description of the first demand information in S607, except that the first demand information is replaced by the second demand information, which will not be repeated here.

[0299] Optionally, the sensing demand indicated by the second demand information can also include a refresh rate, etc.

[0300] The order of S1202 and S1203 is not limited.

[0301] S1204: The first device sends, to the second device, first information. The first information can be used to determine a second resource in the first resource.

[0302] S1204 is an optional step.

[0303] S1205: The first device can send a reference signal on the second resource; correspondingly, the second device can receive the reference signal on the second resource. The reference signal is used for sensing.

[0304] Exemplarily, the first device can send a reference signal in one beam direction; the reference signal first reaches the sensing target through wireless transmission, and then reaches the second device after being reflected by the sensing target, i.e., the second device can receive the reference signal, as shown in S1205a and S1205b in FIG. 12. It should be understood that the reference signal can be transmitted from the first device to the second device through one or more transmission paths, and only one is shown in the figure.

[0305] S1206: The second device can perform sensing according to the reference signal.

[0306] The specific content of S1204 to S1206 can refer to S602 to S604, which will not be repeated here.

[0307] The specific content of S1204 can also refer to S1107, which will not be repeated here.

[0308] S1207: The second device sends, to the first device, a sensing result.

[0309] The method shown in FIG. 12 can achieve the effect of the method shown in FIG. 6, which will not be repeated here.

[0310] Based on the same technical concept as the above method embodiments, the embodiments of the present application provide a corresponding communication device, which can be used to perform the functions of the related steps in the above method embodiments. The functions can be implemented by hardware, by software, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. The communication device can be a terminal or an access network device, or a module, a communication module, a circuit or a chip responsible for communication functions (such as a modem chip, or a SoC chip or a SIP chip containing a modem core) in a terminal or an access network device, a chip system or a processor, and can also be a logic node, a logic module or software that can implement all or part of the functions of a terminal or an access network device.

[0311] In one possible implementation, the structure of the communication device provided by the embodiments of the present application is shown in FIG. 13, which includes a processing unit 1302. Optionally, the communication device also includes an interface unit 1301. The functions of each unit in the communication device 1300 are introduced below.

[0312] The interface unit 1301 is configured to input and / or output information. The input information can be replaced by received information, and the output information can be replaced by transmitted information. When outputting information, the interface unit 1301 can output information to other devices outside the communication device 1300, or output information to other units in the communication device 1300. In some manners, the interface unit 1301 can be implemented through at least one of a physical interface, a communication module, a communication interface, and an input / output interface. In other manners, the interface unit 1301 can be implemented through an interface circuit, for example, a mobile communication module. The mobile communication module can include one or more of at least one antenna, at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like.

[0313] The processing unit 1302 can be configured to support the communication device 1300 to perform the processing actions in the above method embodiments. The processing unit 1302 can be implemented by one or more processors. For example, the processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, or any conventional processor.

[0314] In an embodiment, the communication apparatus 1300 is applied to the first device in the embodiment of the application shown in FIG. 6. The specific functions of the processing unit 1302 in this embodiment are described below.

[0315] The processing unit 1302 is configured to: receive, through the interface unit 1301, first information, the first information being used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal; and transmit, through the interface unit 1301, the reference signal on the second resource, the reference signal being used for sensing; wherein the first resource includes M blocks, M being a positive integer, each of the M blocks including K RBs, K being a positive integer, and the distance between adjacent resource elements in each of the K RBs being a first distance; and the second resource including N of the M blocks, N being a positive integer.

[0316] In some possible implementations, the processing unit 1302 is further configured to: receive, through the interface unit 1301, second information, the second information being used to determine the first resource configured for the reference signal.

[0317] Optionally, the processing unit 1302 is further configured to: receive, through the interface unit 1301, third information, the third information being used to indicate that the reference signal is transmitted on the second resource; or transmit, through the interface unit 1301, fourth information, the fourth information being used to request that the reference signal is transmitted on the second resource.

[0318] In some implementations, the processing unit 1302 is further configured to: transmit, through the interface unit 1301, fifth information, the fifth information including: first demand information used to indicate a sensing demand and / or capability information of the first device, and the fifth information being used to determine the first information.

[0319] In another embodiment, the communication apparatus 1300 is applied to the second device in the embodiment of the application shown in FIG. 6. The specific functions of the processing unit 1302 in this embodiment are described below.

[0320] The processing unit 1302 is configured to: receive, through the interface unit 1301, first information, the first information being used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal; and receive, through the interface unit 1301, the reference signal on the second resource; and perform sensing according to the reference signal; wherein the first resource includes M blocks, M being a positive integer, each of the M blocks including K RBs, K being a positive integer, and the distance between adjacent resource elements in each of the K RBs being a first distance; and the second resource including N of the M blocks, N being a positive integer.

[0321] In some possible implementations, the processing unit 1302 is further configured to receive, through the interface unit 1301, second information, where the second information is used to determine the first resource configured for the reference signal.

[0322] Optionally, the processing unit 1302 is further configured to receive, through the interface unit 1301, third information, where the third information is used to indicate that the reference signal is transmitted on the second resource; or send, through the interface unit 1301, fourth information, where the fourth information is used to request that the reference signal is transmitted on the second resource.

[0323] In some implementations, the processing unit 1302 is further configured to send, through the interface unit 1301, sixth information, where the sixth information includes second demand information used to indicate a sensing demand and / or capability information of a second device, and the sixth information is used to determine the first information.

[0324] In another implementation, the communication apparatus 1300 is applied to the third device in the embodiment of the application shown in FIG. 6. The specific functions of the processing unit 1302 in this implementation are introduced as follows.

[0325] The processing unit 1302 is configured to send, through the interface unit 1301, first information, where the first information is used to determine a second resource in a first resource, the first resource is a physical mapping resource of a reference signal, the second resource is used to carry the reference signal, and the reference signal is used for sensing; and the first resource includes M blocks, M is a positive integer, each of the M blocks includes K RBs, K is a positive integer, and the distance between adjacent resource elements in each of the K RBs is a first distance; and the second resource includes N of the M blocks, N is a positive integer.

[0326] In some possible implementations, the processing unit 1302 is further configured to send, through the interface unit 1301, second information, where the second information is used to determine the first resource configured for the reference signal.

[0327] Optionally, the processing unit 1302 is further configured to send, through the interface unit 1301, third information, where the third information is used to indicate that the reference signal is transmitted on the second resource; or receive, through the interface unit 1301, fourth information, where the fourth information is used to request that the reference signal is transmitted on the second resource.

[0328] In some implementations, the processing unit 1302 is further configured to receive, through the interface unit 1301, fifth information and / or sixth information, where the fifth information includes first demand information used to indicate a sensing demand and / or capability information of a first device, the sixth information includes second demand information used to indicate a sensing demand and / or capability information of a second device, and the fifth information and / or the sixth information is used to determine the first information.

[0329] In a possible design, when the communication apparatus 1300 is a communication device or a communication module in a communication device, the function of the processing unit 1302 can be implemented by one or more processors. For example, the processor can include a modem chip, or a system on chip (SoC) chip or a SIP chip including a modem core. The function of the interface unit 1301 can be implemented by transceiver circuitry.

[0330] In a possible design, when the communication apparatus 1300 is a circuit or chip responsible for communication functions in a communication device, such as a modem chip or a system on chip (SoC) chip or a SIP chip including a modem core, the function of the processing unit 1302 can be implemented by circuitry including one or more processors or processor cores in the chip. The function of the interface unit 1301 can be implemented by interface circuitry or data transceiver circuitry on the chip.

[0331] The communication device can be a terminal, an access network device, an SMF, or an apparatus including an SMF.

[0332] For more details of the processing unit 1302 and the interface unit 1301, refer to the related description in the method embodiment shown in FIG. 6, which will not be repeated here.

[0333] It should be noted that the division of modules in the above embodiments is illustrative, and is merely a logical function division. In actual implementation, another division manner can be used. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or can be physically separated, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0334] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or partly, or all or part of the technical solutions 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.) or a processor to perform all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and various other media that can store program codes.

[0335] In a possible implementation, the communication apparatus provided by the embodiment of the present application includes a processor 1402, as shown in FIG. 14. Optionally, the communication apparatus 1400 further includes an interface circuit 1401 and a memory 1403. The interface circuit 1401, the processor 1402 and the memory 1403 are coupled with each other.

[0336] Optionally, the interface circuit 1401, the processor 1402 and the memory 1403 are coupled with each other through a bus 1404. The bus 1404 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in FIG. 14, but it does not represent that there is only one bus or only one type of bus.

[0337] The interface circuit 1401 is configured to input and / or output information. The input information can be replaced by received information, and the output information can be replaced by transmitted information. When the information is output, the interface circuit 1401 can output the information to other devices outside the communication apparatus 1400, or output the information to other units in the communication apparatus 1400. For example, the interface circuit 1401 can be implemented by at least one of a physical interface, a communication module, a communication interface, an input / output interface and a mobile communication module. The mobile communication module can include one or more of at least one antenna, at least one filter, a switch, a power amplifier, an LNA, etc.

[0338] The processor 1402 can be configured to support the communication apparatus 1400 to perform the processing actions in the above method embodiments. When the communication apparatus 1400 is configured to implement the above method embodiments, the processor 1402 can also be configured to implement the functions of the above processing unit 1302. The processor 1402 can be a CPU, and also can be other general-purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor, or any conventional processor.

[0339] In an embodiment, the communication apparatus 1400 is applied to the first device in the embodiment of the present application shown in FIG. 6. The specific functions of the processor 1402 in this embodiment are introduced as follows.

[0340] The processor 1402 is configured to receive, through the interface circuit 1401, first information, the first information being used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal; and transmit, through the interface circuit 1401, the reference signal on the second resource, the reference signal being used for sensing; wherein the first resource includes M blocks, M being a positive integer, each of the M blocks including K RBs, K being a positive integer, and a spacing between adjacent resource elements in each of the K RBs being a first spacing; and the second resource includes N of the M blocks, N being a positive integer.

[0341] In another embodiment, the communication apparatus 1400 is applied to the second device in the embodiment of the application shown in FIG. 6. The specific functions of the processor 1402 in this embodiment are described below.

[0342] The processor 1402 is configured to receive, through the interface circuit 1401, first information, the first information being used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal; and transmit, through the interface circuit 1401, the reference signal on the second resource, the reference signal being used for sensing; wherein the first resource includes M blocks, M being a positive integer, each of the M blocks including K RBs, K being a positive integer, and a spacing between adjacent resource elements in each of the K RBs being a first spacing; and the second resource includes N of the M blocks, N being a positive integer.

[0343] In another embodiment, the communication apparatus 1400 is applied to the third device in the embodiment of the application shown in FIG. 6. The specific functions of the processor 1402 in this embodiment are described below.

[0344] The processor 1402 is configured to transmit, through the interface circuit 1401, first information, the first information being used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal, and the second resource being used to carry the reference signal, the reference signal being used for sensing; wherein the first resource includes M blocks, M being a positive integer, each of the M blocks including K RBs, K being a positive integer, and a spacing between adjacent resource elements in each of the K RBs being a first spacing; and the second resource includes N of the M blocks, N being a positive integer.

[0345] The specific functions of the processor 1402 can refer to the descriptions of the communication method provided in the embodiments of the application and the examples above, and the specific function descriptions of the communication apparatus 1300 in the embodiment of the application shown in FIG. 13, which will not be repeated here.

[0346] The memory 1403 is configured to store program instructions and / or data, etc. Specifically, the program instructions can include program codes including computer operation instructions. The memory 1403 can include a RAM, and can further include a non-volatile memory such as at least one disk memory. The processor 1402 executes the program instructions stored in the memory 1403, and uses the data stored in the memory 1403 to implement the above functions, thereby implementing the communication method provided by the embodiments of the present application. The memory 1403 can be integrated with the processor 1402, or can be a memory outside the communication device.

[0347] It can be understood that the memory 1403 in FIG. 14 of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. The non-volatile memory can be a ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a RAM used as an external cache. By way of example, but not limitation, many forms of RAM can be used, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the system and method described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0348] In a possible implementation, a communication apparatus provided by an embodiment of the present application is shown in FIG. 15. It can be understood that the communication apparatus 1500 includes necessary forms of means, such as modules, units, elements, circuits, or interfaces, which are configured to be appropriately combined to perform the present solution. The communication apparatus 1500 shown in FIG. 15 can be a terminal, a component (such as a chip or a communication module) in a terminal, an access network device, a component (such as a chip or a communication module) in an access network device, an SMF, an apparatus containing an SMF, or a component (such as a chip or a communication module) in an apparatus containing an SMF, and can be used to perform the operations of the first device, the second device, or the third device in the above method embodiments. The communication apparatus 1500 includes one or more processors 1501. The processor 1501 can be a general purpose processor or a special purpose processor. Optionally, the processor 1501 can include a baseband processor and / or a central processor; or in other words, the processor 1501 can integrate the functions of the baseband processor and the central processor. The baseband processor is mainly used to process communication protocols and communication data, and the central processor is mainly used to control the communication apparatus 1500, execute computer programs, and process data of the computer programs. It should be understood that the baseband processor and the central processor can also be separate processors that are interconnected through a bus. It should also be understood that the communication apparatus 1500 can include multiple baseband processors to adapt to different network modes; and / or the access network device can include multiple central processors to enhance its processing capability. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processor can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor, or stored in the form of a software program in the memory and executed by the processor to realize the baseband processing function.

[0349] Optionally, in a possible design, the processor 1501 can include a program 1503. The program 1503 can be run on the processor 1501, so that the communication apparatus 1500 performs the methods described in the above method embodiments. In another possible design, the communication apparatus 1500 includes a circuit (not shown in FIG. 15) for performing the methods in the above method embodiments; or in other words, the circuit can be used to perform the functions of the first device, the second device, or the third device in the above method embodiments.

[0350] Optionally, the communication apparatus 1500 can include one or more memories 1502. The memory 1502 stores a program 1504, which can be run on the processor 1501, so that the communication apparatus 1500 performs the methods described in the above method embodiments.

[0351] Optionally, the processor 1501 can include an AI module 1507, and / or the memory 1502 can include an AI module 1508. The AI module can be used to implement AI-related functions. The AI module can be implemented in software, hardware, or a combination of software and hardware. For example, the AI module can include a radio intelligence control (RIC) module. For example, the AI module can be a near-real-time RIC or a non-real-time RIC.

[0352] Optionally, the processor 1501 and / or the memory 1502 can also store data. The processor and the memory can be separately arranged, or integrated together.

[0353] Optionally, the communication apparatus 1500 can further include a transceiver 1505 and / or an antenna 1506. The transceiver 1505 can also be referred to as a transceiving unit, a transceiver, a transceiving circuit, or a transceiver, and can be used to implement the transceiving function of the communication apparatus through the antenna 1506.

[0354] Based on the above embodiments, the embodiments of the present application further provide a computer program product including computer executable instructions, which, when executed by a computer, cause the above embodiments to perform the method.

[0355] Based on the above embodiments, the embodiments of the present application further provide a computer readable storage medium, which stores a computer program, and the computer program is executed by a computer to cause the computer to perform the method provided by the above embodiments.

[0356] The storage medium can be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a computer.

[0357] Based on the above embodiments, the embodiments of the present application further provide a chip for reading a computer program stored in a memory, and implementing the method provided by the above embodiments.

[0358] Based on the above embodiments, the embodiments of the present application provide a chip system, which includes a processor for supporting a computer device to implement the functions related to the devices in the above embodiments. In a possible design, the chip system further includes a memory for storing the necessary programs and data of the computer device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0359] In the various embodiments of the present application, the terms and / or descriptions among different embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0360] The present application is described with reference to flowcharts and / or block diagrams of the method, device (system) and computer program product according to the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0361] These computer program instructions can also be stored in a computer readable memory capable of guiding the computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer readable memory produce a product including instruction devices, which implement the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0362] These computer program instructions can also be loaded into a computer or other programmable data processing device, so that a series of operation steps are performed on the computer or other programmable device to produce a computer implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0363] In the present application, "at least one" means one or more, and "multiple" means two or more. The association relationship between the associated objects is described as "and / or", which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. In the literal description of the present application, the character " / " generally represents that the front and rear associated objects have an "or" relationship.

[0364] It can be understood that the various numbers involved in the embodiments of the present application are only distinguished for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the execution order, and the execution order of the processes should be determined according to its function and inherent logic.

[0365] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A communication method characterized by comprising: The method comprises: receiving first information, the first information being used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal; transmitting the reference signal on the second resource, the reference signal being used for sensing; wherein the first resource comprises M blocks, the M being a positive integer, each of the M blocks comprising K resource blocks (RBs), the K being a positive integer, a spacing between adjacent resource elements in each of the K RBs being a first spacing; and the second resource comprising N of the M blocks, the N being a positive integer.

2. The method of claim 1, wherein, The first information comprises at least one of: indices of the N blocks; an index of a reference block in the N blocks and an index difference of adjacent blocks in the N blocks; or a first bitmap, bits in the first bitmap corresponding to each of the M blocks one by one, and a value of a bit in the first bitmap being used to determine the N blocks.

3. The method of claim 1 or 2, wherein, The K RBs comprise RBs on one or more symbols.

4. The method of claim 3, wherein, On each of the one or more symbols, the K RBs comprise one or more RBs.

5. The method according to any one of claims 1 to 4, characterized in that, Different blocks in the M blocks occupy a same time domain position and different frequency domain positions.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: receiving second information, the second information being used to determine the first resource configured for the reference signal.

7. The method according to any one of claims 1 to 6, wherein The method further comprises: receiving third information, the third information being used to indicate that the reference signal is transmitted on the second resource; or transmitting fourth information, the fourth information being used to request that the reference signal is transmitted on the second resource. The method further comprises:

8. The method according to any one of claims 1 to 7, characterized in that, transmitting fifth information, the fifth information comprising: first demand information used to indicate a sensing demand and / or capability information of the first apparatus, the fifth information being used to determine the first information. The reference signal is one of: a positioning reference signal (PRS), a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), a sounding reference signal (SRS), or a channel state information reference signal (CSI-RS).

9. The method according to any one of claims 1 to 8, wherein, A unit of a time domain resource of the first resource is a slot.

10. The method according to any one of claims 1 to 9, characterized in that, The method comprises:

11. A communication method, comprising: receiving first information, the first information being used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal; receiving the reference signal on the second resource; sensing according to the reference signal; wherein the first resource comprises M blocks, the M being a positive integer, each of the M blocks comprising K resource blocks (RBs), the K being a positive integer, a spacing between adjacent resource elements in each of the K RBs being a first spacing; and the second resource comprising N of the M blocks, the N being a positive integer. The first information comprises at least one of:

12. The method of claim 11, wherein, indices of the N blocks; an index of a reference block in the N blocks and an index difference of adjacent blocks in the N blocks; or a first bitmap, bits in the first bitmap corresponding to each of the M blocks one by one, and a value of a bit in the first bitmap being used to determine the N blocks. The K RBs comprise RBs on one or more symbols.

13. The method of claim 11 or 12, wherein, ​ 14. The method of claim 13, wherein, The K RBs include one or more RBs on each of the one or more symbols.

15. The method according to any one of claims 11 to 14, characterized in that, Different blocks in the M blocks occupy the same time domain position and different frequency domain positions.

16. The method according to any one of claims 11 to 15, characterized in that, Further comprising: receiving second information, the second information being used for determining the first resource configured for a reference signal.

17. The method of any one of claims 11 to 16, wherein, Further comprising: receiving third information, the third information being used for indicating that the reference signal is transmitted on the second resource; Or, sending fourth information, the fourth information being used for requesting that the reference signal is transmitted on the second resource.

18. The method of any one of claims 11 to 17, wherein, Further comprising: sending sixth information, the sixth information including second demand information used for indicating a sensing demand and / or capability information of the second device, the sixth information being used for determining the first information.

19. The method of any one of claims 11 to 18, wherein, The reference signal is one of the following: a positioning reference signal PRS, a demodulation reference signal DMRS, a phase tracking reference signal PTRS, a sounding reference signal SRS, or a channel state information reference signal CSI-RS.

20. The method of any one of claims 11 to 19, wherein, A unit of a time domain resource of the first resource is a time slot.

21. A method of communication, comprising: Comprising: determining first information, the first information being used for determining a second resource in a first resource, the first resource being a physical mapping resource of a reference signal, the second resource being used for carrying the reference signal, the reference signal being used for sensing; sending the first information; The first resource includes M blocks, the M being a positive integer, each of the M blocks including K resource blocks RBs, the K being a positive integer, a spacing between adjacent resource elements in each of the K RBs being a first spacing; the second resource including N blocks in the M blocks, the N being a positive integer.

22. The method of claim 21, wherein, The first information includes at least one of the following: indices of the N blocks; indices of reference blocks in the N blocks and an index difference of adjacent blocks in the N blocks; or a first bit map, bits included in the first bit map corresponding to each of the M blocks one by one, a value of a bit included in the first bit map being used for determining the N blocks.

23. The method of claim 21 or 22, wherein, The K RBs include RBs on one or more symbols.

24. The method of claim 23, wherein, The K RBs include one or more RBs on each of the one or more symbols.

25. The method of any one of claims 21 to 24, wherein, Different blocks in the M blocks occupy the same time domain position and different frequency domain positions.

26. The method of any one of claims 21 to 25, wherein, Further comprising: sending second information, the second information being used for determining the first resource configured for a reference signal.

27. The method of any one of claims 21 to 26, wherein, Further comprising: sending third information, the third information being used for indicating that the reference signal is transmitted on the second resource; Or, receiving fourth information, the fourth information being used for requesting that the reference signal is transmitted on the second resource.

28. The method of any one of claims 21 to 27, wherein, The method is applied to a third device, and further comprising: receiving fifth information and / or sixth information, the fifth information including first demand information used for indicating a sensing demand and / or capability information of the first device, the sixth information including second demand information used for indicating a sensing demand and / or capability information of the second device, the fifth information and / or the sixth information being used for determining the first information.

29. The method of any one of claims 21 to 28, wherein, The reference signal is one of a positioning reference signal (PRS), a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), a sounding reference signal (SRS), or a channel state information reference signal (CSI-RS).

30. The method of any one of claims 21 to 29, wherein, A time domain resource of the first resource is in units of slots.

31. A communications device, characterized by The processing unit is configured to: receive, by the interface unit, first information used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal; transmit, by the interface unit, the reference signal on the second resource, the reference signal being used for sensing; The first resource includes M blocks, M being a positive integer, each of the M blocks including K resource blocks (RBs), K being a positive integer, and a spacing between adjacent resource elements in each of the K RBs being a first spacing; and the second resource includes N of the M blocks, N being a positive integer.

32. The apparatus of claim 31, wherein, The first information includes at least one of: indices of the N blocks; indices of reference blocks in the N blocks and an index difference of adjacent blocks in the N blocks; or a first bit map, bits included in the first bit map corresponding to each of the M blocks one by one, and a value of a bit included in the first bit map being used to determine the N blocks.

33. The apparatus of claim 31 or 32, wherein, The K RBs include RBs on one or more symbols.

34. The apparatus of claim 33, wherein, On each of the one or more symbols, the K RBs include one or more RBs.

35. The apparatus of any one of claims 31 to 34, wherein, Different blocks of the M blocks occupy the same time domain position and different frequency domain positions.

36. The apparatus of any one of claims 31 to 35, wherein, The processing unit is further configured to: receive, by the interface unit, second information used to determine the first resource configured for the reference signal.

37. The apparatus of any one of claims 31 to 36, wherein, The processing unit is further configured to: receive, by the interface unit, third information used to indicate that the reference signal is transmitted on the second resource; or transmit, by the interface unit, fourth information used to request that the reference signal is transmitted on the second resource.

38. The apparatus of any one of claims 31 to 37, wherein, The processing unit is further configured to: transmit, by the interface unit, fifth information including first demand information used to indicate a sensing demand and / or capability information of the first device, the fifth information being used to determine the first information.

39. The apparatus of any one of claims 31 to 38, wherein, The reference signal is one of a positioning reference signal (PRS), a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), a sounding reference signal (SRS), or a channel state information reference signal (CSI-RS).

40. The apparatus of any one of claims 31 to 39, wherein, A time domain resource of the first resource is in units of slots.

41. A communications device, characterized by The processing unit is configured to: receive, by the interface unit, first information used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal; receive, by the interface unit, the reference signal on the second resource; perform sensing according to the reference signal; and The first resource includes M blocks, the M is a positive integer, each of the M blocks includes K resource blocks (RBs), the K is a positive integer, and a distance between adjacent resource elements in each of the K RBs is a first distance; and the second resource includes N of the M blocks, the N is a positive integer.

42. The apparatus of claim 41, wherein, The first information includes at least one of the following: indices of the N blocks; indices of a reference block in the N blocks and an index difference between adjacent blocks in the N blocks; or a first bit map, bits in the first bit map correspond to each of the M blocks one by one, and a value of a bit in the first bit map is used to determine the N blocks.

43. The apparatus of claim 41 or 42, wherein, The K RBs include RBs on one or more symbols.

44. The apparatus of claim 43, wherein, On each of the one or more symbols, the K RBs include one or more RBs.

45. The apparatus of any one of claims 41 to 44, wherein, Different blocks of the M blocks occupy a same time domain position and different frequency domain positions.

46. The apparatus of any one of claims 41 to 45, wherein, The processing unit is further configured to: receive, through the interface unit, second information used to determine the first resource configured for a reference signal.

47. The apparatus of any one of claims 41 to 46, wherein, The processing unit is further configured to: receive, through the interface unit, third information used to indicate that the reference signal is transmitted on the second resource; or send, through the interface unit, fourth information used to request that the reference signal is transmitted on the second resource.

48. The apparatus of any one of claims 41 to 47, wherein, The processing unit is further configured to: send, through the interface unit, sixth information including second demand information used to indicate a sensing demand and / or capability information of the second device, the sixth information being used to determine the first information.

49. The apparatus of any one of claims 41 to 48, wherein, The reference signal is one of the following: a positioning reference signal (PRS), a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), a sounding reference signal (SRS), or a channel state information reference signal (CSI-RS).

50. The apparatus of any one of claims 41 to 49, wherein, A unit of a time domain resource of the first resource is a time slot.

51. A communications device, characterized by The processing unit is configured to: determine first information used to determine a second resource in a first resource, the first resource being a physical mapping resource of a reference signal, the second resource being used to carry the reference signal, and the reference signal being used for sensing; send, through the interface unit, the first information. The first resource includes M blocks, the M is a positive integer, each of the M blocks includes K resource blocks (RBs), the K is a positive integer, and a distance between adjacent resource elements in each of the K RBs is a first distance; and the second resource includes N of the M blocks, the N is a positive integer.

52. The apparatus of claim 51, wherein, The first information includes at least one of the following: indices of the N blocks; indices of a reference block in the N blocks and an index difference between adjacent blocks in the N blocks; or a first bit map, bits in the first bit map correspond to each of the M blocks one by one, and a value of a bit in the first bit map is used to determine the N blocks.

53. The apparatus of claim 51 or 52, wherein, The K RBs include RBs on one or more symbols.

54. The apparatus of claim 53 wherein, The K RBs comprise one or more RBs on each of the one or more symbols.

55. The apparatus of any one of claims 51 to 54, wherein, Different blocks of the M blocks occupy the same time domain position and different frequency domain positions.

56. The apparatus of any one of claims 51 to 55, wherein, The processing unit is further configured to: send, by the interface unit, second information, the second information being used for determining the first resource configured for a reference signal.

57. The apparatus of any one of claims 51 to 56, wherein, The processing unit is further configured to: send, by the interface unit, third information, the third information being used for indicating that the reference signal is transmitted on the second resource; or, receive, by the interface unit, fourth information, the fourth information being used for requesting that the reference signal is transmitted on the second resource.

58. The apparatus of any one of claims 51 to 57, wherein, The processing unit is further configured to: receive, by the interface unit, fifth information and / or sixth information, the fifth information comprising first requirement information used for indicating a sensing requirement and / or capability information of the first device, and the sixth information comprising second requirement information used for indicating a sensing requirement and / or capability information of the second device, the fifth information and / or the sixth information being used for determining the first information.

59. The apparatus of any one of claims 51 to 58, wherein, The reference signal is one of: a positioning reference signal PRS, a demodulation reference signal DMRS, a phase tracking reference signal PTRS, a sounding reference signal SRS, or a channel state information reference signal CSI-RS.

60. The apparatus of any one of claims 51 to 59, wherein, A unit of a time domain resource of the first resource is a time slot.

61. A communications device, characterized by The apparatus comprises a processor configured to execute a computer program or instructions, so that the apparatus performs the method of any one of claims 1-30.

62. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program or instructions, when the computer program or instructions are executed, the method of any one of claims 1-30 is implemented.

63. A computer program product, characterized in that, The computer program product comprises computer program code, when the computer program code is run, the method of any one of claims 1-30 is implemented. The computer program product comprises computer program code, when the computer program code is run, the method of any one of claims 1-30 is implemented.

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