Communication method and device

Abstract

A communication method and apparatus, applied to a communication and sensing integrated system, the communication method comprising: a first device sends capability information to a second device, the capability information being used for indicating the maximum transmitting power of the first device; the second equipment determines first transmitting power according to the maximum transmitting power of the first equipment, the transmitting antenna power of the first equipment, the path loss from the first equipment to the second equipment, the maximum receiving power of the second equipment and the receiving antenna power of the second equipment, and sends first indication information to the first equipment, the first indication information is used for indicating first transmitting power; and the first device sends the sensing signal at the first transmitting power. Through the communication method, the second equipment can receive the sensing signal, and the first transmitting power can be ensured to be as high as possible, so that the sensing performance is ensured as high as possible.

Description

Technical Field

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

[0002] When transmitting communication signals, the transmitting end can determine the transmission power using uplink power control methods. For sensing applications, a higher transmission power is more beneficial for sensing (e.g., target detection). Therefore, it is desirable for the transmitting end to transmit signals at its maximum transmission power during sensing. However, for the receiving end, due to hardware limitations, the receiver's maximum receiving power is finite. When the distance between the transmitting and receiving ends is short, if the transmitting end uses a high transmission power, the receiver's actual receiving power may exceed its maximum receiving power, resulting in the receiver failing to receive the sensing signal transmitted by the transmitting end. Determining the transmission power of the sensing signal is a problem that needs to be solved in sensing scenarios. Summary of the Invention

[0003] This application provides a communication method and apparatus for determining the transmission power of a sensing signal, which can improve sensing performance.

[0004] Firstly, this application provides a communication method, which can be executed by a first communication device. The first communication device can be a terminal-side device, for example, a terminal device or a component (e.g., a circuit, chip, or chip system) within a terminal device, or a larger device including the terminal device. For ease of description, the first communication device will be described below as a first device.

[0005] The communication method includes: a first device transmitting capability information, receiving first indication information, and transmitting a sensing signal to a second device at a first transmission power. The capability information indicates the maximum transmission power of the first device. The first indication information indicates the first transmission power of the sensing signal. The first transmission power is determined based on parameters, including the maximum transmission power of the first device, the transmit antenna power of the first device, the path loss from the first device to the second device, and the receive antenna power of the second device.

[0006] Accordingly, in a second aspect, this application provides a communication method that can be executed by a second communication device. The first communication device may be a network-side device; for example, the second communication device may be a network device or a component within a network device (e.g., a circuit, chip, or chip system), or a larger device including the network device. For ease of description, the second communication device will be described below as a second device.

[0007] The communication method includes: a second device receiving capability information, determining a first transmission power, and sending first indication information, which indicates the first transmission power. The capability information indicates the maximum transmission power of the first device. The second device determines the first transmission power based on the maximum transmission power of the first device, the transmit antenna power of the first device, the path loss from the first device to the second device, and the receive antenna power of the second device.

[0008] In the solutions provided in the first or second aspect, when the signal exchanged between the first device and the second device is a sensing signal, the second device can determine the transmission power of the sensing signal (e.g., a first transmission power) by comprehensively considering several factors. For example, the first transmission power can be determined by comprehensively considering the maximum transmission power of the first device, the transmission antenna power of the first device, the path loss from the first device to the second device, and the receiving antenna power of the second device. The second device informs the first device of the first transmission power, and the first device transmits the sensing signal at the first transmission power. In this way, the second device can receive the sensing signal, while ensuring that the first transmission power is as high as possible to maximize sensing performance.

[0009] In a possible implementation of either the first or second aspect, the first transmit power is less than or equal to the difference between a first value and a second value. The first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device. The second value is the path loss from the first device to the second device.

[0010] In a possible implementation of the first or second aspect, the parameter further includes the maximum received power of the second device. In this case, the first transmit power is less than or equal to the minimum of the third value and the maximum received power of the second device. The third value is the difference between the first value and the second value. The first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device. The second value is the path loss from the first device to the second device. It is understood that the first transmit power is less than or equal to the maximum received power of the second device to ensure that the second device can receive the sensing signal as much as possible.

[0011] In a possible implementation of the first aspect, the first device transmitting the sensing signal to the second device at a first transmission power includes: when the distance between the first device and the second device is less than a first distance, the first device transmitting the sensing signal to the second device at the first transmission power.

[0012] This scheme specifies the condition under which the first device transmits the sensing signal at a first transmit power: the distance between the first and second devices is relatively short. When the first device determines that the distance between the first and second devices is short, it uses the first transmit power to transmit the sensing signal. This ensures that the second device can receive the sensing signal while maximizing the transmission power of the sensing signal to improve sensing performance. Conversely, when the first device determines that the distance between the first and second devices is long, even if the first device receives the first indication information, it can choose not to use the first transmit power to transmit the sensing signal. For example, the first device can use an uplink power control method to determine the transmit power to be used, thereby ensuring a higher transmit power and improving sensing / communication performance.

[0013] In a possible implementation of the second aspect, the second device sending the first indication information includes: when the distance between the second device and the first device is less than a first distance, the second device sends the first indication information.

[0014] In this scheme, when the distance between the second device and the first device is less than or equal to a first distance, the first device uses a first transmission power; correspondingly, when the distance between the second device and the first device is less than or equal to the first distance, the second device sends a first indication message. When the distance between the first device and the second device is long, the second device may not send the first indication message, thus reducing unnecessary signaling transmission.

[0015] In one of the possible implementations of the first or second aspect, the first indication information further includes a first distance. The second device indicates the first distance to the first device via the first indication information, and the first device can determine the first distance based on the first indication information. This is relatively simple and reduces the processing complexity of the first device.

[0016] In one possible implementation of the first or second aspect, the first indication information indicating a first transmit power of the sensed signal includes: the first indication information including a first transmit power; or, the first indication information indicating a first offset value in a first set, the first set including at least one offset value. Wherein, the first transmit power is the difference between the maximum transmit power of the first device and the first offset value.

[0017] This scheme provides two methods for the first indication information to indicate the first transmission power. One method involves the first indication information including the first transmission power, which is simple and direct, reducing the processing complexity of the first device. The other method involves the first indication information carrying a first offset value, which reduces the resource overhead of the first indication information.

[0018] Thirdly, this application provides a communication method that can be executed by a first communication device. The first communication device can be a terminal-side device, for example, a terminal device or a component within a terminal device (e.g., a circuit, chip, or chip system), or a larger device including the terminal device. For ease of description, the first communication device will be described below as a first device.

[0019] The communication method includes: a first device sending capability information, receiving second indication information, determining a first transmission power based on a first power value, and sending a sensing signal to a second device at the first transmission power. The capability information indicates the maximum transmission power of the first device. The second indication information includes the first power value, which is related to the scheduling bandwidth of the sensing signal.

[0020] Accordingly, in a fourth aspect, this application provides a communication method that can be executed by a second communication device. The first communication device may be a network-side device; for example, the second communication device may be a network device or a component within a network device (e.g., a circuit, chip, or chip system), or a larger device including the network device. For ease of description, the second communication device will be described below as a second device.

[0021] The communication method includes: a second device receiving capability information and sending second indication information. The capability information indicates the maximum transmit power of the first device. The second indication information includes a first power value, which is related to the scheduling bandwidth of the sensing signal, and is used to determine the first transmit power of the sensing signal.

[0022] In the solutions provided in the third or fourth aspect, the first power value is a parameter used to determine the first transmit power of the sensing signal. The first power value can be the desired receive power of the second device, or it can be the nominal power used by the sensing signal. The second device can determine a suitable first power value based on the scheduling bandwidth of the sensing signal and instruct it to the first device. For example, if the first power value determined based on the scheduling bandwidth of the sensing signal is larger than the nominal power of the communication signal, the first device will also determine a larger first transmit power based on the first power value, thereby maximizing sensing performance by transmitting the sensing signal based on the first transmit power.

[0023] In a possible implementation of the third or fourth aspect, the second indication information is also used to indicate the first power value for sensing the signal.

[0024] By explicitly indicating the use of the first power value for the sensing signal through the second indication information, the first device can use the first power value when transmitting the sensing signal, thereby avoiding the misuse of the first power value by the first device. For example, it can prevent the first device from using the first power value when transmitting communication signals.

[0025] Fifthly, this application provides a communication method, which can be executed by a first communication device. The first communication device can be a terminal-side device, for example, a terminal device or a component within a terminal device (e.g., a circuit, chip, or chip system), or a larger device including the terminal device. For ease of description, the first communication device will be described below as a first device.

[0026] The communication method includes: a first device receiving third indication information, determining a first transmission power based on a first power adjustment value, and transmitting a sensing signal at the first transmission power. The third indication information includes a transmit power control (TPC) command field, which indicates the first power adjustment value used for sensing, or the first power adjustment value used to determine the first transmission power of the sensing signal.

[0027] Accordingly, in a sixth aspect, this application provides a communication method that can be executed by a second communication device. The first communication device may be a network-side device; for example, the second communication device may be a network device or a component within a network device (e.g., a circuit, chip, or chip system), or a larger device including the network device. For ease of description, the second communication device will be described below as a second device.

[0028] The communication method includes: a second device generating and sending third indication information, the third indication information including a TPC command field indicating a first power adjustment value, the first power adjustment value being used to determine a first transmit power of the sensed signal.

[0029] In the solution provided in the fifth or sixth aspect, the second device indicates a first power adjustment value for sensing based on the TPC command field. Thus, the second device can determine a suitable first power adjustment value according to sensing requirements and indicate the first power adjustment value to the first device. Since the first power adjustment value is used for sensing, it can be assumed that the first transmit power determined based on the first power adjustment value can meet the sensing performance requirements.

[0030] In a possible implementation of the fifth or sixth aspect, the third instruction information occupies N bits, where N is an integer greater than 2. Alternatively, the TPC command field occupies N bits, where N is an integer greater than 2.

[0031] In this scheme, the TPC command field occupies at least 3 bits, which can indicate more power adjustment values, making the adjustment range of the transmission power of the sensing signal larger. Thus, the adjustment of the transmission power of the sensing signal can be achieved with fewer TPC command interactions.

[0032] In a possible implementation of the fifth or sixth aspect, the TPC command domain is a TPC command domain dedicated to sensing.

[0033] By using dedicated TPC command fields for sensing, the first device can clearly identify whether a received TPC command field is used for sensing or communication, thus preventing the first device from misusing the TPC command field. For example, it can prevent the first device from using a TPC command field intended for sensing for communication, thereby avoiding any impact on communication performance.

[0034] In a possible implementation of the fifth aspect, the method further includes: a first device receiving fourth indication information, the fourth indication information being used to indicate that the third indication information is used for sensing. Correspondingly, in a possible implementation of the sixth aspect, the method further includes: a second device sending fourth indication information, the fourth indication information being used to indicate that the third indication information is used for sensing.

[0035] The second device can clearly inform the first device through the fourth instruction information that the third instruction information is used for sensing. In this way, the first device can avoid the misuse of the third instruction information through the fourth instruction information.

[0036] In a seventh aspect, embodiments of this application provide a communication method, which can be executed by a first communication device and a second communication device. The first communication device has the function of implementing the behavior in the method examples of the first aspect described above. For example, the first communication device includes corresponding means, modules, or units for executing the method of the first aspect, which can be implemented by software and / or hardware. The second communication device has the function of implementing the behavior in any of the method examples of the second aspect described above. For example, the second communication device includes corresponding means, modules, or units for executing the method of the second aspect, which can be implemented by software and / or hardware. Taking the first communication device as a first device and the second communication device as a second device as an example, the communication method includes:

[0037] The communication method includes: a first device sending capability information to a second device, the capability information indicating the maximum transmit power of the first device; the second device determining a first transmit power based on the maximum transmit power of the first device, the transmit antenna power of the first device, the path loss from the first device to the second device, the maximum receive power of the second device, and the receive antenna power of the second device, and sending first indication information to the first device, the first indication information indicating the first transmit power; and the first device transmitting a sensing signal at the first transmit power.

[0038] For the beneficial effects of the seventh aspect, please refer to the beneficial effects of the first or second aspect and its various implementation methods, which will not be elaborated here.

[0039] Eighthly, embodiments of this application provide a communication method, which can be executed by a first communication device and a second communication device. The first communication device has the function of implementing the behavior in the method examples of the first aspect described above. For example, the first communication device includes corresponding means, modules, or units for executing the method of the first aspect, which can be implemented by software and / or hardware. The second communication device has the function of implementing the behavior in any of the method examples of the second aspect described above. For example, the second communication device includes corresponding means, modules, or units for executing the method of the second aspect, which can be implemented by software and / or hardware. Taking the first communication device as a first device and the second communication device as a second device as an example, the communication method includes:

[0040] The communication method includes: a first device sending capability information to a second device, the capability information indicating the maximum transmission power of the first device; the second device sending second indication information to the first device, the second indication information indicating a first power value, the first power value being related to the scheduling bandwidth of the sensing signal, and used to determine the first transmission power of the sensing signal; the first device determining the first transmission power based on the first power value, and transmitting the sensing signal to the second device at the first transmission power.

[0041] Ninthly, embodiments of this application provide a communication method, which can be executed by a first communication device and a second communication device. The first communication device has the function of implementing the behavior in the method examples of the first aspect described above. For example, the first communication device includes corresponding means, modules, or units for executing the method of the first aspect, which can be implemented by software and / or hardware. The second communication device has the function of implementing the behavior in any of the method examples of the second aspect described above. For example, the second communication device includes corresponding means, modules, or units for executing the method of the second aspect, which can be implemented by software and / or hardware. Taking the first communication device as a first device and the second communication device as a second device as an example, the communication method includes:

[0042] The communication method includes: a second device sending a third indication information to a first device, the third indication information including a TPC command field, the TPC command field indicating a first power adjustment value, the first power adjustment value being used for sensing; the first device determining a first transmission power of the sensing signal based on the first power adjustment value, and sending the sensing signal to the second device at the first transmission power.

[0043] In a tenth aspect, embodiments of this application provide a communication device that has the functionality to implement the behavior in any of the method examples of the first to sixth aspects described above. The beneficial effects can be found in the relevant descriptions of the first, third, or fifth aspects, and will not be repeated here. For example, the communication device may be a first device as described in the first, third, or fifth aspects; or, the communication device may be a device capable of supporting the first device in implementing the functions required by the methods provided in the first, third, or fifth aspects. For example, the communication device may be a chip or chip system in the first device. As another example, the communication device may be a second device as described in the second, fourth, or sixth aspects; or, the communication device may be a device capable of supporting the second device in implementing the functions required by the methods provided in the second, fourth, or sixth aspects. For example, the communication device may be a chip or chip system in the second device.

[0044] In one possible design, the communication device includes a baseband device and a radio frequency device.

[0045] In one possible design, the communication device includes corresponding means or modules for performing the methods of any of the first to sixth aspects. For example, the communication device includes a processing unit (sometimes also called a processing module or processor) and / or a transceiver unit (sometimes also called a transceiver module or transceiver). The transceiver unit is capable of both transmitting and receiving functions. When the transceiver unit performs the transmitting function, it may be called a transmitting unit (sometimes also called a transmitting module), and when it performs the receiving function, it may be called a receiving unit (sometimes also called a receiving module). The transmitting unit and the receiving unit may be the same functional unit, referred to as the transceiver unit, which performs both transmitting and receiving functions; or, the transmitting unit and the receiving unit may be different functional units, with "transceiver unit" being a collective term for these functional units. These units (modules) can perform the corresponding functions in the method examples of any of the first to sixth aspects described above, as detailed in the method examples, and will not be repeated here.

[0046] Eleventhly, embodiments of this application provide a communication device, which may be the communication device described in the tenth aspect of the above embodiments, or a chip or chip system disposed in the communication device described in the tenth aspect. The communication device includes a communication interface and a processor, and optionally, a memory. The memory stores computer programs, instructions, or data, and the processor is coupled to the memory and the communication interface. When the processor reads the computer program, instructions, or data, it causes the communication device to execute the method performed by the first device in the above method embodiments. For example, the communication device may be the first device or a functional module within the first device, such as a baseband chip and a radio frequency chip. Alternatively, when the processor reads the computer program, instructions, or data, it causes the communication device to execute the method performed by the second device in the above method embodiments. For example, the communication device may be the second device or a functional module within the second device, such as a baseband chip and a radio frequency chip.

[0047] In a twelfth aspect, embodiments of this application provide a chip system including a processor and a communication interface for implementing the methods described in any of the first to sixth aspects. Optionally, the chip system further includes a memory. The memory stores computer programs (also referred to as code or instructions). The processor retrieves and executes the computer program from the memory, causing a device equipped with the chip system to perform the methods in any of the first to sixth aspects and any implementation thereof. The chip system may be composed of chips or may include chips and other discrete devices.

[0048] In a thirteenth aspect, embodiments of this application provide a communication device including an input / output interface and logic circuitry. The input / output interface is used for inputting and / or outputting information. The input / output interface may be an interface circuit, an output circuit, an input circuit, a pin, or related circuitry, etc. The logic circuitry is used to execute the methods described in any of the first to sixth aspects.

[0049] In practical implementation, the aforementioned communication device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the logic circuit can be a transistor, gate circuit, flip-flop, and various other logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to and transmitted by a transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the input / output interface and the logic circuit.

[0050] In one implementation, when the communication device is a wireless communication device, it can be a terminal device such as a mobile phone, or a network device such as a base station. The interface circuit can be a radio frequency processing chip in the wireless communication device, and the processing circuit can be a baseband processing chip in the wireless communication device.

[0051] In a fourteenth aspect, embodiments of this application provide a communication system, which includes a terminal device and a network device. The terminal device is used to implement the function of the method described in the first aspect, and the network device is used to implement the function of the method described in the second aspect. Alternatively, the terminal device is used to implement the function of the method described in the third aspect, and the network device is used to implement the function of the method described in the fourth aspect. Alternatively, the terminal device is used to implement the function of the method described in the fifth aspect, and the network device is used to implement the function of the method described in the sixth aspect.

[0052] In a fifteenth aspect, embodiments of this application provide a computer-readable storage medium for storing a computer program or instructions that, when executed, cause the methods described in any of the first to sixth aspects and any implementation thereof to be implemented.

[0053] In a sixteenth aspect, embodiments of this application also provide a computer program product containing instructions that, when run on a computer, cause the methods described in any of the first to sixth aspects and any of their implementations to be implemented.

[0054] The beneficial effects of aspects 10 to 16 and their implementation methods can be referenced to the beneficial effects of aspects 1, 2, or 3 and any of their implementation methods, and will not be elaborated here. Attached Figure Description

[0055] Figure 1 This is a network architecture diagram of a communication system applicable to embodiments of this application;

[0056] Figure 2 Schematic diagrams of two typical protocol stacks for a base station provided in the embodiments of this application;

[0057] Figure 3 A schematic diagram illustrating an application scenario of integrated communication and sensing provided in an embodiment of this application;

[0058] Figure 4 A schematic diagram of a perception scene provided in an embodiment of this application;

[0059] Figure 5 A schematic diagram of PH provided in the embodiments of this application;

[0060] Figure 6A schematic diagram of the communication method 600 provided in an embodiment of this application;

[0061] Figure 7 A schematic diagram of the communication method 700 provided in an embodiment of this application;

[0062] Figure 8 A schematic diagram of the communication method 800 provided in an embodiment of this application;

[0063] Figure 9 A schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0064] Figure 10 This is another schematic diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0065] The technical solutions provided in the embodiments of this application can be applied to integrated communication and sensing systems. An integrated communication and sensing system is a system that integrates communication and sensing systems. Sensing can also be understood as detection, such as detecting the position, distance, and angle of a target object. In an integrated communication and sensing system, one or more communication devices can be used as sensing (detection) nodes to form a sensing network. The working principle of sensing is to determine the attribute information (such as speed, distance, shape, size, etc.) of the sensed target by sending a signal and receiving the signal reflected by the sensed target (also called the echo signal). The sensed target can be a fixed object, such as mountains, forests, or buildings, or a movable object, such as a vehicle, drone, pedestrian, or terminal device. The communication device acting as a sensing node is also called a sensing device, sensing apparatus, or detector. Any device with sensing capabilities can be used as a sensing device; for example, a terminal device with sensing capabilities is a type of sensing device.

[0066] This application does not limit the type of communication system in the integrated communication and sensing system. For example, the communication system can be a communication system related to the 3rd Generation Partnership Project (3GPP). For example, the communication system can be a long-term evolution (LTE), a 5th generation (5G) mobile communication system (e.g., a new radio (NR) communication system), or it can be applied to other next-generation mobile communication systems, such as a 6th generation (6G) communication system, or other similar communication systems. Other similar communication systems may include wireless fidelity (WIFI), vehicle-to-everything (V2X), Internet of Things (IoT) systems, narrowband Internet of Things (NB-IoT) systems, and so on.

[0067] Please see Figure 1 This illustration shows a communication system to which embodiments of this application apply. The communication system includes a wireless access network 100 and a core network 200. Optionally, the communication system may also include the Internet.

[0068] The wireless access network 100 may include at least one network device and at least one terminal device. For example, the wireless access network 100 includes two network devices, 110a and 110b, and terminal devices, such as 120a to 120j. Figure 1 The network architecture shown is merely illustrative; the number of terminal devices and / or network devices may be fewer or more. The communication system described in the embodiments of this application is intended to more clearly illustrate the technical solutions of the embodiments of this application and does not constitute a limitation on the communication system to which the embodiments of this application apply. For example, the communication system may also include other devices, such as wireless relay devices and wireless backhaul devices, etc. Figure 1 Not shown in the diagram. Those skilled in the art will recognize that, with the evolution of network architecture, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems. When applying the technical solutions of the embodiments of this application to other communication systems, the devices, components, modules, etc., in the embodiments can be replaced with corresponding devices, components, modules in other communication systems, without limitation.

[0069] In this embodiment, the network device refers to a radio access network (RAN) device. The RAN can be a 3GPP-related cellular system, such as a 5G / new radio (NR) mobile communication system, or a future-oriented evolution system (e.g., a 6G mobile communication system). The RAN can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a virtualized RAN (vRAN), etc. The RAN can also be a communication system that integrates two or more of the above systems. The RAN device can also be referred to as a RAN node, RAN entity, or access node, etc.

[0070] In one possible scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a next-generation base station in a 6G mobile communication system, or a base station in a future mobile communication system. A RAN node can also be a macro base station, a micro base station, an indoor station, a relay node, a donor / host node, or a radio controller. RAN nodes can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, in V2X technology, a RAN node can be a roadside unit (RSU).

[0071] In another possible scenario, a RAN node can be a module or unit that performs some of the functions of a base station; or multiple RAN nodes can collaborate to assist terminal devices in achieving wireless access, with different RAN nodes performing some of the functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). The function of a CU can be implemented by a single entity or by different entities. For example, the function of a CU can be further divided, that is, the control plane and the user plane can be separated and implemented by different entities, namely the control plane CU entity (i.e., CU-control plane (CP) entity) and the user plane CU entity (i.e., CU-user plane (UP) entity). The CU-CP entity and the CU-UP entity can be coupled with the DU to jointly complete the function of the RAN node. The CU and DU can be set up separately or included in the same network element, such as in the baseband unit (BBU). Any of the units among the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by software modules, hardware modules, or a combination of software modules and hardware modules.

[0072] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples.

[0073] The CU and DU can be configured according to the protocol layer functions of the wireless network they implement: for example, the CU can be configured to implement the functions of the Packet Data Convergence Protocol (PDCP) layer and above (such as the Radio Resource Control (RRC) layer and / or the Service Data Adaptation Protocol (SDAP) layer); the DU can be configured to implement the functions of protocol layers below the PDCP layer (such as the Radio Link Control (RLC) layer, the Media Access Control (MAC) layer, and / or the Physical (PHY) layer). For specific descriptions of the above protocol layers, please refer to the relevant 3GPP technical specifications or the technical specifications of other applicable communication protocols.

[0074] For example, see Figure 2 The following are schematic diagrams of two typical protocol stacks of a base station provided in the embodiments of this application. In base station (1), the base station is divided into CU and DU. CU is configured to implement the functions of protocol layers above PDCP (e.g., RRC layer and / or SDAP layer, etc.); DU is configured to implement the functions of protocol layers below PDCP (e.g., RLC layer, MAC layer, and / or PHY layer, etc.). CU and DU communicate with each other based on the F1 interface. In base station (2), the base station is divided into CU and DU. CU includes CU-CP and CU-UP. CU-CP is used to implement the control plane functions of CU, and CU-UP is used to implement the user plane functions of CU. CU-CP and CU-UP can communicate based on the E1 interface. CU-CP and DU communicate based on the F1 interface (also called F1-C) that supports the control plane. CU-UP and DU communicate based on the F1 interface (also called F1-U) that supports the user plane. CU-CP is configured to implement the control plane and RRC layer functions of the PDCP layer, and CU-UP is configured to implement the user plane and SDAP layer functions of the PDCP layer. DU is configured to implement the functions of protocol layers below the PDCP layer (such as RLC, MAC, and / or PHY layers).

[0075] The above division of the processing functions of CU and DU according to protocol layers is merely an example; other division methods are also possible, and this application does not limit this. For example, in one design, CU or DU can be further divided into processing functions with protocol layers. In one design, some functions of the RLC layer and the functions of the protocol layer above the RLC layer are located in the CU, while the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are located in the DU.

[0076] In another possible design, the DU and RU collaborate to implement the PHY layer functionality, or, more specifically, a portion of the PHY layer functionality of the DU can be moved to the RU. A DU can be connected to one or more RUs. The functions of the DU and RU can be configured in various ways depending on the design. For example, the DU may be configured to implement baseband functions, and the RU may be configured to implement mid-RF functions. Alternatively, the DU may be configured to implement higher-level functions in the PHY layer, and the RU may be configured to implement lower-level functions in the PHY layer, or both lower-level and RF functions. Higher-level functions in the physical layer may include a portion of the physical layer's functionality closer to the MAC layer, and lower-level functions may include another portion of the physical layer's functionality closer to the mid-RF side. This application does not limit the specific functions of the DU and RU. The interface between the DU and RU can be called a fronthaul interface. In one design, the CU may not have a PDCP layer; for example, the CU may only include an RRC layer. The CU-CP may not have PDCP-C. The CU-UP may not have PDCP-U, or may not have a CU-UP. In one design, the DU may not have an RLC layer; for example, the DU may only have a MAC and a higher PHY layer.

[0077] When the RAN is O-RAN, it can also have artificial intelligence (AI) capabilities. For example, O-RAN includes an intelligent controller. The intelligent controller can be a non-real-time RAN intelligent controller (RIC / non-RT RIC / NRTRIC) or a near-real-time RAN intelligent controller (RIC / nRT RIC / nRT RIC). A non-real-time RIC can be used to implement non-real-time intelligent management of RAN functions, enabling workflows including model training and updates, and guiding applications / functions in the nRT RIC based on policies. A near-real-time RIC can be used to implement near-real-time intelligent management of the RAN. Through data collection and related operations on the E2 interface, near-real-time control and optimization of O-RAN modules and resources are achieved.

[0078] In the embodiments of this application, the means for implementing the functions of the network device can be the network device itself, or it can be a means that supports the network device in implementing the functions, such as a chip system or a combination of devices or components that can implement the functions of the network device. This means can be installed in the network device. The embodiments of this application do not limit the specific technology or specific device form used in the network device.

[0079] In this application embodiment, anything capable of data communication with a base station can be considered a terminal device. Terminal devices are also called terminals, terminal equipment, user equipment (UE), mobile stations, or mobile terminals, etc. Terminal devices can be widely used in various scenarios. For example, terminal devices can be: mobile phones, computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, stations (STA), robotic arms, cameras, robots, vehicles, drones, helicopters, airplanes, ships, or smart home devices (such as televisions, air conditioners, robot vacuums, speakers, set-top boxes), relays, customer premises equipment (CPE), etc.

[0080] Furthermore, in this embodiment, the terminal device can also be a terminal device in an IoT system, such as a water meter or electricity meter. IoT is an important component of future information technology development. Its main technical characteristic is connecting objects to networks through communication technology, thereby realizing an intelligent network that enables human-machine interconnection and object-to-object interconnection.

[0081] When the terminal device is applied to V2X, it can also be called a V2X device, such as a smart car, digital car, unmanned car, driverless car, pilotless car, autonomous car, pure electric vehicle, hybrid electric vehicle (HEV), range-extended electric vehicle (REEV), plug-in hybrid electric vehicle (PHEV), new energy vehicle, and RSU.

[0082] The various terminal devices described above, if located on a vehicle (e.g., placed / installed inside the vehicle), can all be considered in-vehicle terminal devices. In-vehicle terminal devices can be built into a vehicle's in-vehicle module, in-vehicle component, in-vehicle chip, or in-vehicle unit as one or more components or units. The vehicle can implement the methods of this application through the built-in in-vehicle module, in-vehicle component, in-vehicle chip, or in-vehicle unit. In-vehicle terminal devices can be vehicle equipment, in-vehicle modules, vehicles, in-vehicle units (on-board units, OBUs), remote sensing units (RSUs), in-vehicle infotainment systems (or in-vehicle transmission units) (telematics boxes, T-boxes), chips, or systems on a chip (SOCs), etc. These chips or SOCs can be installed in the vehicle, OBU, RSU, or T-box.

[0083] In the embodiments of this application, the device for implementing the functions of the terminal device can be the terminal device itself, or it can be a device that supports the terminal device in implementing the functions, such as a chip system or a combination of devices or components that can implement the functions of the terminal device. This device can be installed in the terminal device. The embodiments of this application do not limit the specific technology or device form used in the terminal device.

[0084] Taking a network device as a base station and a terminal device as a UE as an example, the base station and UE can be fixed or mobile. The base station and UE can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of the base station and UE.

[0085] The roles of the base station and the UE can be relative, for example, Figure 1 The helicopter or drone 120i can be configured as a mobile base station. For UEs 120j accessing the wireless access network 100 via 120i, UE 120i is a base station; however, for base station 110a, 120i is a UE, meaning that 110a and 120i communicate via a radio interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol; in this case, 120i is also a base station relative to 110a. Therefore, both the base station and the UE can be collectively referred to as a communication device. Figure 1 The 110a and 110b in the text can be referred to as communication devices with base station functions. Figure 1 The 120a-120j in the text can be referred to as communication devices with UE functionality.

[0086] As a typical application scenario of integrated communication and sensing, such as Figure 3 As shown. Figure 3 Taking a network device and multiple terminal devices as an example, with the terminal device being a smartphone and the sensing targets being drones, pedestrians, and vehicles, the example is illustrated. Figure 3Using solid lines to represent communication and dashed lines to represent sensing, this example illustrates the use of solid lines for communication and dashed lines for sensing. In this embodiment, the signal used for sensing is called a sensing signal, while the signal used for communication is called a communication signal. Sensing signals can also be called detection signals, radar signals, radar sensing signals, radar detection signals, environmental sensing signals, etc. Sensing signals can be pulse signals or signals that may exist in a wireless communication system, such as a sounding reference signal (SRS), a demodulation reference signal (DMRS), or a channel state information reference signal (CSI-RS). Communication signals include, for example, signals carried on the physical downlink shared channel (PDSCH) and signals carried on the physical sidelink shared channel (PSSCH). In particular, communication signals can also be used for sensing.

[0087] Sensing can generally be divided into two modes: single-site sensing and dual-site sensing. Single-site sensing refers to a mode where the transmitting device for the sensing signal and the receiving device for the echo signal are the same device. In other words, in single-site sensing, the transmitting device both transmits the sensing signal and receives the echo signal reflected from the surface of the sensing target. Therefore, this single-site sensing mode can also be called a self-transmitting and self-receiving mode, without limitation. Dual-site sensing refers to a mode where the transmitting device for the sensing signal and the receiving device for the echo signal are two different devices. In other words, sensing station A transmits the sensing signal, and the echo signal reflected from the surface of the sensing target is received by sensing station B. Therefore, this dual-site sensing mode can also be called the A-transmitting and B-receiving mode. It should be noted that the echo signal is obtained by reflecting the sensing signal from the surface of the sensing target; therefore, this echo signal can still be called the sensing signal.

[0088] Figure 4 The diagram illustrates a sensing scenario to which embodiments of this application are applicable. Figure 4 The document provides six sensing scenarios applicable to the embodiments of this application, namely: the scenario where network device A transmits and receives signals independently, i.e., the scenario where network device A sends sensing signals and receives echo signals, such as... Figure 4 As shown in (1); the scenario where terminal device A transmits and receives signals independently, that is, the scenario where terminal device A sends sensing signals and receives echo signals, as shown in (1); Figure 4As shown in (2) in the diagram; the scenario where network device A sends a sensing signal and network device B receives the echo signal, as shown in the diagram. Figure 4 As shown in (3) in the diagram; the scenario where terminal device A sends a sensing signal and terminal device B receives the echo signal, as shown in the diagram. Figure 4 As shown in (4) in the diagram; the scenario where network device A sends a sensing signal and terminal device A receives the echo signal, as shown in the diagram. Figure 4 As shown in (5) in the diagram; the scenario where terminal device A sends a sensing signal and network device A receives the echo signal, as shown in the diagram. Figure 4 As shown in (6) of the text. Figure 4 The example shown uses a vehicle as the sensing target and a smartphone as the terminal device.

[0089] The above describes the integrated sensing system applicable to the embodiments of this application. The following describes some technical features and technical terms related to the embodiments of this application.

[0090] 1) Uplink power control includes uplink power control for three physical channels: the Physical Uplink Shared Channel (PUSCH), the Physical Uplink Control Channel (PUCCH), and the Physical Random Access Channel (PRACH), as well as the sounding reference signal (SRS). In simple terms, the uplink power control process is as follows: the network device configures the desired uplink receive power and power control parameters to the terminal device; the terminal device determines the transmit power based on path loss, and determines the final transmit power under the constraint of the maximum transmit power. Uplink power control can be divided into open-loop power control and closed-loop power control. In open-loop power control, the terminal device determines the transmit power based on its own power control algorithm, which depends on the internal implementation of the terminal device. In closed-loop power control, the network device sends power control commands to the terminal device based on the strength of the received signal; correspondingly, the terminal device adjusts its transmit power according to the network device's power control commands.

[0091] Taking SRS power control as an example, the terminal device transmits SRS on the serving cell c and carrier f with bandwidth part (BWP) b, and uses the parameter set with index j to configure the SRS power adjustment value at index l. Specifically, the terminal device can determine the transmission power at time i when transmitting SRS according to the following formula:

[0092]

[0093] Among them, PSRS,b,f,c (i,q s ,l) represents the transmit power of the terminal device transmitting SRS on serving cell c, carrier f, and BWP b. CMAX,f,c (i) represents the maximum output power configured on carrier f for SRS transmission in serving cell c, which is related to factors such as the transmission capability of the terminal equipment and the frequency domain resource allocation of SRS. P O_SRS,b,f,c (j) is the nominal power P O_NOMINAL_SRS,f,c (j) and power budget compensation P O_UE_SRS,b,f,c The sum of (j) can be configured by higher-level signaling. M SRS,b,f,c (i) is the bandwidth allocated by the SRS resources, represented by the number of resource blocks (RBs) used for SRS transmission time. α SRS,b,f,c (q s This represents the path loss compensation factor for a cell with carrier c, carrier f, and BWP b, configured by higher layers. s This represents the index ID of the current SRS resource set. PL b,f,c (q d ) is for using index number q d The downlink pathloss estimate of the activated downlink BWP is estimated from the reference signal, in dB.

[0094] h b,f,c (i,l) represents the power control adjustment value for the transmission timing i of SRS on carrier f with BWP of b in serving cell c and f. b,f,c (i,l) can be indicated by the TPC command field, or, h b,f,c (i,l) represents the value indicated by the TPC command field, which can be determined by the TPC command field in the DCI that schedules this SRS. TPC is divided into cumulative TPC and absolute TPC. Cumulative TPC refers to the TPC obtained by summing the values ​​indicated by multiple TPC command fields, while absolute TPC refers to the current value indicated by the TPC command field. The maximum power adjustment value that the TPC command field can indicate differs depending on whether it is cumulative or absolute TPC. For example, see Table 1, which illustrates the meaning of the TPC command field. The TPC command field occupies 2 bits and can indicate four power adjustment values.

[0095] Table 1

[0096] TPC Nominal Domain Power adjustment value under cumulative TPC Power adjustment value under absolute TPC conditions 0 -1 -4 1 0 -1 2 1 1 3 3 4

[0097] Assuming a 6dB increase in transmit power is required, Table 1 shows that for cumulative TPC control, two TPC commands need to be exchanged, with the TPC command field valued at 3 each time, indicating a power adjustment of 3dB each time. For absolute TPC control, Table 1 shows that the maximum adjustment value that the TPC command field can indicate is 4; therefore, a 6dB increase in transmit power cannot be indicated.

[0098] Additionally, terminal devices can report their power headroom to the network device via a power headroom report (PHR). Power headroom (PH) is the difference between the desired transmit power and the maximum transmit power. For example, please see... Figure 5 This is a schematic diagram of PH provided in an embodiment of this application. When the PH indicated by PHR is greater than 0, it means that the terminal device has remaining power available in addition to the power currently used for transmitting the signal (which can be simply referred to as the current power). For example, Figure 5 If PH1 is greater than 0, it means that the current power has not reached the maximum transmit power and there is still power available; if PH is less than 0, it means that the desired transmit power has exceeded the maximum uplink transmission power allowed by the terminal device, for example, Figure 5 If PH2 is less than 0, it means that the desired transmission power has exceeded the maximum transmission power, and the transmission power should be adjusted to a lower value.

[0099] 2) In the embodiments of this application, the number of nouns, unless otherwise specified, refers to "singular nouns or plural nouns," that is, "one or more." "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. For example, A / B means: A or B. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0100] In the embodiments of this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0101] In the embodiments of this application, "when," "if," and "if" all refer to the device taking corresponding actions under certain objective circumstances, and are not time-limited, nor do they require the device to perform a judgment action, nor do they imply any other limitations. Unless otherwise specified, "if" and "if" can be substituted, and "when" and "in the case of" can be substituted. "When" and "if" / "if" can be substituted.

[0102] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0103] In this application's embodiments, ordinal numbers such as "first" and "second" are used to distinguish multiple objects, not to limit the size, content, order, timing, priority, or importance of the objects. For example, "first instruction information" and "second instruction information" refer to two different instruction information, not indicating a difference in their priority or importance. The instruction information involved in this application's embodiments (e.g., first instruction information / second instruction information / third instruction information) can be carried in one or more of RRC signaling, MAC CE, or DCI. In this application's embodiments, "." and "*" in the formulas both represent multiplication.

[0104] As described above, the transmitting end can determine its transmission power using uplink power control methods when sending signals. For communication, a longer distance between the transmitting and receiving ends necessitates a higher transmission power; conversely, a shorter distance requires a lower transmission power to conserve energy. For sensing, a higher transmission power is more beneficial for sensing (e.g., target detection). Therefore, even with a short distance between the transmitting and receiving ends, it is desirable for the transmitting end to use its maximum transmission power to ensure sensing performance. Alternatively, the maximum transmission power can be used by default to guarantee sensing performance. However, the maximum receiving power of the receiving end is limited by various factors (e.g., the distance between the transmitting and receiving ends). When the distance is short and the transmitting end uses its maximum transmission power, the actual receiving power of the receiver may exceed its maximum receiving power, resulting in the receiver failing to receive the sensing signal transmitted by the transmitting end.

[0105] The actual received power at the receiver is related to the following factors: the transmitter's transmit power, the system carrier frequency, the transmitter's transmit antenna power, the receiver's receive antenna power, the distance between the transmitter and receiver, the receiver's maximum received power, and the path loss between the transmitter and receiver. The path loss between the transmitter and receiver is related to the distance between them and the system carrier frequency. Different distances between the transmitter and receiver, and different system carrier frequencies, result in different path losses. This application does not limit the specific implementation method for determining the path loss between the transmitter and receiver. For example, in one implementation, the path loss PL between the transmitter and receiver can be determined according to the following formula:

[0106] PL = 28.0 + 22log10(d 3c )+20log10(f c ), where d 3D f is the three-dimensional distance between the transmitter and receiver. c The system carrier frequency is PL. The unit of PL is dB. dB is a scalar, representing the logarithm of a value multiplied by 10 to simplify very large or very small values. In the embodiments of this application, dB can represent a relative power ratio. For example, the relative ratio of power A to power B is 10log(power A / power B) dB.

[0107] Assuming the two-dimensional distance between the transmitter and receiver is 35m and the system carrier frequency is 7GHz, treating this two-dimensional distance as a three-dimensional distance, the path loss between the transmitter and receiver is 78.87dB. Alternatively, the path loss can be calculated based on the actual three-dimensional distance between the transmitter and receiver. For example, assuming the two-dimensional distance is 35m and the receiver is 25m high, the three-dimensional distance between the transmitter and receiver is 43m.

[0108] Different transmitters support different maximum transmit powers. Taking a UE as the transmitter, a base station as the receiver, a distance of 35m between the UE and the base station, a system carrier frequency of 7GHz, and a maximum transmit power of 23dBm for the UE, and assuming the UE's transmit antenna power is 9dB and the base station's receive antenna power is 17dB, then the base station's receive power is: 23dBm + 9dB + 17dB - 78.87dB = -29.87dBm. Here, dBm represents the absolute value of power, 1dBm = 10log(P / 1mW), where P is power in watts (W), and mW is milliwatts. It's understandable that in the above formula, dB can be converted to dBm before addition and subtraction.

[0109] Assuming that due to hardware limitations, the maximum receiving power of the base station is -40dBm, when a UE within 35m of the base station sends a sensing signal at 23dBm, the actual receiving power of the base station is 29.87dBm, which exceeds the maximum receiving power of the base station. Therefore, the base station cannot receive the sensing signal and thus cannot achieve sensing.

[0110] To address the aforementioned technical problems, this application provides a solution based on its embodiments. In these embodiments, the receiving end can directly or indirectly indicate the transmission power of the sensing signal to the transmitting end. Accordingly, the transmitting end transmits the sensing signal based on the transmission power indicated by the receiving end. Since the transmission power used by the transmitting end is indicated by the receiving end, it can be assumed that the sensing signal transmitted by the transmitting end at this transmission power can be received by the receiving end, thus ensuring sensing performance as much as possible.

[0111] The technical solutions provided by the embodiments of this application are described below with reference to the accompanying drawings.

[0112] In the following description, the communication method provided in the embodiments of this application is applied to... Figure 1 , Figure 3 or Figure 4Taking any network architecture as an example, the communication method provided in this application embodiment can be executed by a first device and a second device. The steps executed by the first device can be implemented by the first device itself, by components within the first device (such as a baseband chip, or other processing units or processor modules), or by a larger device including the first device. The steps executed by the second device can be implemented by the second device itself, by components within the second device (such as a baseband chip, or other processing units or processor modules), or by a larger device including the second device. The specific forms of the first and second devices are not limited; for example, the first device can be a chip, and the second device can be a device; or both the first and second devices can be chips or devices. In possible scenarios, the first device can be... Figure 1 The terminal device 120a shown, or it could be Figure 1 The chip (system) in the terminal device 120a; the second device can be Figure 1 The network device 110a in the middle, or it could be Figure 1 The chip (system) in network device 110a. In possible scenarios, the first device could be... Figure 1 The terminal device 120b shown, or it could be Figure 1 The chip (system) in the terminal device 120b; the second device can be Figure 1 The terminal device 120a, or it could be Figure 1 The chip (system) in the terminal device 120a.

[0113] Please see Figure 6 , Figure 6 A flowchart of the communication method 600 provided in this application embodiment. Figure 6 This method is described from the perspective of the interaction between the first and second devices. For example... Figure 6 As shown, the communication method 600 provided in this application embodiment includes the following steps.

[0114] S601, The first device sends capability information to the second device, which is used to indicate the maximum transmission power of the first device.

[0115] Accordingly, the second device receives capability information from the first device. The specific name of the capability information and the signaling that carries it are not limited in the embodiments of this application. For example, if the first device is a UE and the second device is a base station, the capability information can be included in the UE's capability information or carried in an RRC reconfiguration completion message or an RRC recovery completion message.

[0116] To inform the second device of the first device's maximum transmission power, the first device can send capability information to the second device. This capability information can indicate the first device's maximum transmission power; for example, the capability information includes the first device's maximum transmission power. This application embodiment does not limit the timing of the first device sending the capability information. For example, the first device can send the capability information to the second device in response to a request from the second device. Or, for example, the first device can proactively send the capability information to the second device before communicating with it.

[0117] S602, the second device sends a first indication information to the first device, the first indication information being used to indicate the first transmission power of the sensing signal.

[0118] The second device can determine the maximum transmission power of the first device from the capability information reported by the first device. When the first and second devices are sensing each other, in order to ensure sensing performance, the second device indicates the transmission power of the sensing signal (e.g., a first transmission power) to the first device. For example, the second device sends a first indication message to the first device, which indicates the first transmission power. Accordingly, the first device, upon receiving the first indication message from the second device, can determine whether to transmit the sensing signal at the first transmission power or to use the first transmission power when transmitting the sensing signal.

[0119] The first transmit power is related to multiple factors / parameters, or is determined based on multiple factors / parameters. These multiple factors / parameters include at least: the maximum transmit power of the first device, the transmit antenna power of the first device, the path loss from the first device to the second device, and the receive antenna power of the second device. The transmit antenna power of the first device can be actively notified to the second device by the first device, or the first device can send its transmit antenna power to the second device in response to a request from the second device. The path loss from the first device to the second device can be calculated based on the distance between the first device and the second device.

[0120] There are several ways to determine the distance between the first device and the second device. For example, the first device can determine its location through a positioning process, and then determine the distance between the first and second devices, sending this distance to the second device. For instance, if the first device is a UE and the second device is a base station, the UE can initiate a location service request. The core network can send positioning assistance data (including the base station's location information) to the UE. The UE determines its location based on the positioning assistance data and the distance between the UE and the base station, then notifies the base station of this distance. Another example is that the distance between the first and second devices can be determined through sensing. For instance, if there are multiple devices in the environment, including the first and second devices, the first device sends a signal and receives reflected signals from other devices around it. Based on the signal transmission time, the time of receiving the reflected signals, the speed of light, and the locations of other devices, the first device can determine its location, and then determine the distance between the first and second devices, sending this distance to the second device. Alternatively, the second device can send a signal and receive reflected signals from other devices (including the first device) around the second device. The second device can determine the position of the first device based on the time of signal transmission, the time of receiving the reflected signals, the speed of light, and the positions of other devices, and thus determine the distance between the first device and the second device.

[0121] The second device can determine the first transmit power based on the first device's maximum transmit power, the first device's transmit antenna power, the path loss from the first device to the second device, and the second device's receive antenna power. For example, the first transmit power is less than or equal to the difference between a first value and a second value. The first value is the sum of the first device's maximum transmit power, the first device's transmit antenna power, and the second device's receive antenna power; the second value is the path loss from the first device to the second device. For instance, if the first device is a UE and the second device is a base station, and the distance between the UE and the base station is 35m with a system carrier frequency of 7GHz, as mentioned above, the path loss from the first device to the second device is 78.87dB. Assuming the UE's maximum transmit power is 23dBm, the UE's transmit antenna power is 9dB, and the base station's receive antenna power is 17dB, then the base station's receive power is: 23dBm + 9dB + 17dB - 78.87dB = -29.87dBm. The first transmit power can be less than or equal to the base station's receive power. In this way, by sending the sensing signal with the first transmission power, the probability that the second device will not be able to receive the sensing signal can be reduced, and the sensing performance can be guaranteed as much as possible.

[0122] It is understandable that the first transmit power cannot exceed the maximum receive power of the second device. Therefore, the first transmit power can be considered to be related to the maximum receive power of the second device. For example, the first transmit power can be determined based on the maximum transmit power of the first device, the transmit antenna power of the first device, the path loss from the first device to the second device, the maximum receive power of the second device, and the receive antenna power of the second device. For example, the first transmit power is less than or equal to the minimum of a third value and the maximum receive power of the second device. The third value is the difference between the first value and the second value. The first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device. The second value is the path loss from the first device to the second device.

[0123] The first indication information can directly indicate the first transmission power or indirectly indicate the first transmission power. In other words, there are multiple ways for the first indication information to indicate the first transmission power. For example, the first indication information may include the first transmission power. In this case, the first device can directly determine the first transmission power based on the first indication information, resulting in lower processing complexity. Another example is that the first indication information may include a first offset value, where the first transmission power is the maximum transmission power of the first device (P). C,max The first transmit power is the difference between the first transmit power and the first offset value (ΔP). It is understood that the first transmit power is less than the maximum transmit power of the first device, and the second device can indirectly indicate the first transmit power by indicating the first offset value. The first device receives the first indication information and determines the first transmit power based on the maximum transmit power of the first device and the first offset value.

[0124] Considering that in the sensing scenario, the first transmission power varies depending on the distance between the first device and the second device, there can be multiple offset values ​​for the first device and the second device. These multiple offset values ​​include the first offset value, and the first indication information can indicate the first offset value from these multiple offset values. Alternatively, there can be a first set of multiple offset values ​​between the first device and the second device, which includes the first offset value, and the first indication information can indicate the first offset value from the first set.

[0125] For example, the first indication information occupies N bits, where N is a positive integer, and one value of the N bits corresponds to one offset value. For instance, multiple offset values ​​between the first and second devices are {13, 15, 17, 19, 21, 23} dBm, and one offset value corresponds to one distance between the first and second devices. As shown in Table 2, the first indication information can occupy 3 bits, and one value of the 3 bits corresponds to one offset value.

[0126] Table 2

[0127] 3-bit value meaning 000 The first value in the first set 001 The second value in the first set 010 The third value in the first set 011 The 4th value in the first set 100 The 5th value in the first set 101 The 6th value in the first set 110 Reserved 111 Reserved

[0128] Table 2 above is merely an example, and the number of offset values ​​included in the first set is not limited in this embodiment. For both the first and second devices, the second device can send the first set to the first device, allowing the first device to determine the first transmission power based on the first set and the first indication information. Alternatively, the first device can also store the first set, allowing it to determine the first transmission power based on the first set and the first indication information.

[0129] In possible scenarios, if a first device corresponds to multiple second devices, the first device can also store multiple first sets, with one first set corresponding to one second device. In this case, in addition to sending first indication information to the first device, the second device also sends its own identifier. The first device can determine the first set corresponding to the second device from the multiple first sets based on the second device's identifier, and then determine the first offset value from that first set based on the first indication information. Of course, the second device's identifier and the first indication information can also be sent to the first device together, or the first indication information can include the second device's identifier.

[0130] S603, The first device sends a sensing signal to the second device at a first transmission power.

[0131] The first device determines a first transmission power and transmits a sensing signal to the second device at the first transmission power. Correspondingly, the second device receives the sensing signal from the first device. Since the first transmission power is determined by the second device based on the maximum transmission power of the first device, the maximum receiving power of the second device, the distance / path loss between the first and second devices, etc., it can be assumed that the first transmission power can be received by the second device, and transmitting the sensing signal at the first transmission power can also guarantee sensing performance.

[0132] It is understandable that when the first device and the second device are located in a sensor-integrated system, they can exchange both communication signals and sensing signals. For communication signals, when the distance between the first and second devices is long, the first device uses a higher transmission power to meet communication performance requirements; when the distance is short, the first device uses a lower transmission power to minimize energy consumption. For sensing signals, to ensure sensing performance, even when the distance between the first and second devices is short, the first device uses a higher transmission power. It can be considered that the transmission power used by the first device to send sensing signals is distance-dependent. For example, when the distance between the first and second devices is less than or equal to a first distance, the first device sends sensing signals to the second device at a first transmission power. Conversely, when the distance between the first and second devices is greater than or equal to the first distance, the first device can determine the transmission power to send sensing signals according to the power control method of the aforementioned SRS.

[0133] The first distance can be predefined by the protocol, agreed upon by the first and second devices, or indicated by the second device to the first device. For example, the first indication information may also include the first distance, meaning that the first indication information sent by the second device to the first device may indicate the first transmit power and the first distance. Of course, the first distance can also be transmitted by the second device to the first device alone, meaning that the first indication information does not carry the first distance, and the first distance can be carried in signaling other than the first indication information.

[0134] If the first device receives the first indication information and determines that the distance between the first device and the second device is less than or equal to a first distance, then the first device transmits a sensing signal at a first transmission power. If the first device receives the first indication information and determines that the distance between the first device and the second device is greater than or equal to the first distance, then the first device can determine the transmission power to transmit the sensing signal according to the power control method of the SRS described above, or the first device can also transmit the sensing signal according to the transmission power of the communication signal.

[0135] In the aforementioned communication method 600, both the communication signal and the sensing signal have their own methods for determining transmission power. For the sensing signal, an appropriate transmission power is selected based on the distance between the transmitting and receiving ends. For example, if the distance between the transmitting and receiving ends is short, the sensing signal is transmitted according to the transmission power indicated by the receiving end to ensure it can be received by the receiving end while maximizing sensing performance.

[0136] As an alternative, this application also provides a communication method 700. In communication method 700, a set of parameters for determining the transmission power is provided for the communication signal, and a set of parameters for determining the transmission power is provided for the sensing signal; that is, the communication signal and the sensing signal each have their own corresponding set of parameters. The parameters corresponding to the sensing signal can be set according to sensing requirements / sensing performance. Thus, the transmission power of the sensing signal is independently determined according to the corresponding parameters, which can meet the sensing performance requirements.

[0137] In communication method 700, the method for controlling the transmission power of the sensing signal is similar to the method for controlling the transmission power of the communication signal, except that the nominal power used for the sensing signal is different from the nominal power used for the communication signal. Continuing with the example of the communication signal being SRS, the nominal power used for the communication signal is P. O_SRS,b,f,c (j), and in the embodiments of this application, the nominal power used for the sensing signal is For ease of description, the nominal power used for communication signals will be denoted as P0, and the nominal power used for sensing signals will be denoted as P1. The following will first introduce

[0138] It's understandable that P0 can also be interpreted as the expected received power at the receiving end, which is related to open-loop power control parameters and power budget compensation. Taking the UE as the transmitter, the base station as the receiver, and the PUSCH as the communication signal as an example, P0 is P... O_PUSCH,b,f,c (j) and P O_UE_PUSCH,b,f,c The sum of (j), where P O_PUSCH,b,f,c (j) represents the open-loop power control parameter, P O_PUSCH,b,f,c The value of (j) is determined by the configured higher-level parameters and is related to the cell-level parameter P. O_NOMINAL_PUSCH,f,c (j) and UE-level parameter P O_UE_PUSCH,b,f,c (j) is composed of high-level parameters. P O_NOMINAL_PUSCH,f,c (j) represents the base station's desired transmit power when the normal demodulation performance requirements of PUSCH are met, P O_UE_PUSCH,b,f,c (j) represents the power offset value of the UE relative to the normal scenario, which reflects the impact of factors such as UE service type and channel quality on PUSCH transmit power.

[0139] In terms of communication signals, P0 typically refers to the full bandwidth, or in other words, the P0 indicated by the base station is based on the full bandwidth indication. However, in practical applications, the UE only occupies the BWP within the full bandwidth. The UE calculates the transmit power based on the actually scheduled BWP, which results in a lower calculated transmit power for the UE. For example, if the full bandwidth is 400 MHz and the base station indicates P0 as -80 dBm, it means the base station expects the transmit power of each resource block (RB) within the 400 MHz to be -80 dBm. If the UE actually schedules 100 MHz of BWP, then the UE calculates the transmit power based on the 100 MHz BWP. Assuming the communication signal is SRS, the calculation is based on the following formula:

[0140]

[0141] It can be seen that when the UE calculates the transmit power based on the 100M BWP, compared to calculating the transmit power based on the full bandwidth of 400M, the P0+10*log10(M) related to the transmit power is higher. SRS,b,f,c (i) There is a deviation, resulting in a lower calculated transmit power by the UE. It can also be considered that the UE used a smaller P0, resulting in a lower calculated transmit power.

[0142] If we use P0 of the communication signal to calculate the transmission power of the sensing signal, then the transmission power of the sensing signal will also be relatively small, failing to meet the sensing performance requirements. Therefore, P0 of the communication signal is no longer suitable as a parameter for the transmission power of the sensing signal.

[0143] Even if the base station configures P0 based on the BWP activated by the UE, and the UE calculates the transmit power based on P0 to send communication signals, for communication, the transmit power of the communication signal only needs to ensure communication performance while minimizing interference to other devices. For sensing, to ensure sensing performance, a higher transmit power is desirable. Therefore, even if the base station configures P0 based on the BWP activated by the UE, and the UE sends sensing signals with the transmit power calculated based on P0, it still cannot meet the sensing performance requirements. In particular, when the bandwidth actually used by the UE to send sensing signals in the BWP is smaller than that BWP, the transmit power determined by the UE is even smaller, making it even more impossible to meet the sensing performance requirements. From this perspective, P0 of the communication signal is no longer suitable as a parameter for the transmit power of the sensing signal.

[0144] Therefore, embodiments of this application propose a solution for sensing signals. So that based on The determined transmission power is relatively high, which can meet the sensing requirements and ensure good sensing performance. The following section combines... Figure 7 The communication method 600 provided in the embodiments of this application is described.

[0145] Please see Figure 7 , Figure 7 A flowchart of the communication method 700 provided in this application embodiment. Figure 7 This method is described from the perspective of the interaction between the first and second devices. For example... Figure 7 As shown, the communication method 700 provided in this application embodiment includes the following steps.

[0146] S701, The first device sends capability information to the second device, which is used to indicate the maximum transmission power of the first device.

[0147] Accordingly, the second device receives capability information from the first device. For a detailed implementation of S701, please refer to the relevant content of S601 above; it will not be repeated here.

[0148] S702, the second device sends a second indication message to the first device, the second indication message including a first power value, the first power value being related to the scheduling bandwidth of the sensing signal.

[0149] Accordingly, the first device receives second indication information from the second device. The second indication information can be used to indicate a first power value; for example, the second indication information includes a first power value. This first power value is the aforementioned... It is related to the scheduling bandwidth of the sensing signal. The first power value is related to the scheduling bandwidth of the sensing signal, or it can be replaced by saying that the first power value is determined based on the scheduling bandwidth of the sensing signal.

[0150] In one implementation, the second device can configure the scheduling bandwidth of the sensing signal to the first device. The granularity of the scheduling bandwidth is not limited in this embodiment; for example, the granularity can be the number of BWPs or RBs. The first device determines the scheduling bandwidth of the sensing signal and P0. For example, It can be seen that, Since it is larger than P0, the method for determining the transmission power is similar to that used for P0. The embodiments of this application are based on... Determine the transmission power of the sensing signal, even though the bandwidth of the sensing signal actually transmitted by the first device is a portion of the full bandwidth, because... Since it is larger than P0, the transmission power of the determined sensing signal is larger than that of the communication signal, which can satisfy the sensing performance as much as possible.

[0151] In another implementation, similar to configuring P0, the second device can be configured. For details, please refer to the configuration of P0. For example, the second device can be configured according to the first open-loop power control parameter P. O_sening,b,f,c (j) and the first power budget compensation P O_UE_sening,b,f,c (j) Determined For example, For P O_sening,b,f,c(j) and P O_UE_sening,b,f,c The sum of (j). P O_sening,b,f,c (j) and / or P O_UE_sening,b,f,c (j) is determined based on the scheduling bandwidth of the sensing signal. In this embodiment of the application, the second device determines P based on the scheduling bandwidth of the sensing signal. O_sening,b,f,c (j) and / or P O_UE_sening,b,f,c The specific implementation of (j) is not restricted. For example, P O_sening,b,f,c The value of (j) is determined by the configured higher-level parameters and is related to the cell-level parameter P. O_NOMINAL_sening,f,c (j) and UE-level parameter P O_UE_sening,b,f,c (j) is composed of high-level parameters. P O_NOMINAL_sening,f,c (j) represents the base station's desired transmit power when the normal demodulation performance requirements of the sensed signal are met, P O_UE_sening,b,f,c (j) represents the power offset value of the UE relative to the normal scenario, which reflects the impact of factors such as UE service type and channel quality on the transmission power of the sensed signal.

[0152] S703, The first device determines the first transmission power based on the first power value.

[0153] The first device receives the second indication information and determines the first transmission power based on the first power value. The method by which the first device determines the first transmission power based on the first power value is the same as the method by which the first device determines the transmission power based on P0. Taking the communication signal as SRS as an example, the first power value is... The first transmit power P can satisfy:

[0154]

[0155] Where P represents the transmit power of the terminal device transmitting sensing signals on serving cell c, carrier f, and BWP b. CMAX,f,c (i) represents the maximum output power configured on carrier f for sensing signal transmission in serving cell c. This maximum output power is related to factors such as the transmission capability of the terminal equipment and the frequency domain resource allocation of the sensing signal. M sening,b,f,c (i) is the bandwidth allocated to the sensing signal resources, represented by the number of RBs used for the sensing signal transmission time. α sening,b,f,c (q s This represents the path loss compensation factor for a cell with carrier c, carrier f, and BWP b, configured by higher layers. s The index ID of the resource set representing the current sensed signal. PL b,f,c (q d ) is for using index number q d The downlink pathloss estimate of the activated downlink BWP is estimated from the reference signal, in dB.

[0156] h b,f,c (i,l) represents the power control adjustment value for the transmission timing i of the sensed signal on carrier f with BWP b in serving cell c, f, and b. b,f,c (i,l) can be indicated by the TPC command field, or, h b,f,c (i,l) is the value indicated by the TPC command field, which can be indicated by the TPC command field in the DCI that schedules the sensing signal.

[0157] S704. The first device sends a sensing signal to the second device at a first transmission power.

[0158] The first device determines a first transmission power and sends a sensing signal to the second device at the first transmission power. Correspondingly, the second device receives the sensing signal from the first device.

[0159] It is understandable that when the first and second devices are located in an integrated sensing system, they can exchange both communication signals and sensing signals. For communication signals, the second device will be configured with a power value P0; for sensing signals, the second device will be configured with a power value... To clarify whether the power value configured by the second device is for communication signals or sensing signals, the second device can also instruct the first device. Used for signal sensing. For example, the second indication information can also be used to indicate that the first power value is used for signal sensing. For instance, the second indication information includes a first field and a second field, where the first field indicates the first power value and the second field indicates that the first power value is used for signal sensing. For example, the second field occupies 1 bit, and a value of 0 indicates that the first power value is used for signal sensing; a value of 1 indicates that the power value configured in the second indication information is used for communication signals. Alternatively, the second indication information includes both a first field and a second field, where the second field indicates that the power value indicated by the first field is used for signal sensing; or, in other words, as long as the second indication information includes the second field, the power value indicated by the first field is used for signal sensing.

[0160] In the aforementioned communication method 700, both the communication signal and the sensing signal have a set of parameters for determining their transmission power. The parameters corresponding to the sensing signal can be set according to sensing requirements / sensing performance. Thus, the transmission power of the sensing signal is independently determined based on its corresponding parameters, which can meet the sensing performance requirements.

[0161] As an alternative, this application also provides a communication method 800. In the communication method 800, a set of parameters for determining the transmission power is provided for the communication signal, and a set of parameters for determining the transmission power is provided for the sensing signal; that is, the communication signal and the sensing signal each have their own corresponding set of parameters. The parameters corresponding to the sensing signal can be set according to sensing requirements / sensing performance. Thus, the transmission power of the sensing signal is independently determined according to the corresponding parameters, which can meet the sensing performance requirements.

[0162] Please see Figure 8 , Figure 8 A flowchart of the communication method 800 provided in this application embodiment. Figure 8 This method is described from the perspective of the interaction between the first and second devices. For example... Figure 8 As shown, the communication method 800 provided in this application embodiment includes the following steps.

[0163] S801, the second device sends a third instruction message to the first device, and correspondingly, the first device receives the third instruction message from the second device.

[0164] The third indication information can be used to indicate the first power adjustment value, which is similar to the aforementioned h. b,f,c (i, l). For example, the third indication information includes a TPC command field, which indicates a first power adjustment value for sensing. As mentioned above, the transmit power of the transmitter can be adjusted by the receiver through closed-loop power control parameters. The current value of the closed-loop power control parameters is indicated by the TPC command field, as shown in Table 2. The TPC command field in Table 2 occupies 2 bits, which limits the number of adjustment values ​​it can support, and the adjustment range of the transmit power is also limited. Considering that for sensing signals, the higher the transmit power, the better the sensing performance, it is desirable to have a larger adjustment range of the transmit power. Therefore, in the embodiments of this application, the TPC command field can occupy more bits to indicate more power adjustment values. For example, the TPC command field occupies N bits, where N is an integer greater than 2.

[0165] For example, when N=3, the power adjustment value indicated by the TPC command field can be shown in Table 3 or Table 4. Table 3 corresponds to the cumulative TPC, and Table 4 corresponds to the absolute TPC. The unit of the power adjustment value in Tables 3 and 4 is dBm.

[0166] Table 3

[0167] Values ​​of the TPC nominal field Power adjustment value under cumulative TPC 000 -1 001 0 010 1 011 3 100 5 101 7 110 9 111 11

[0168] Table 4

[0169] Values ​​of the TPC nominal field Power adjustment value under absolute TPC conditions 000 -4 001 -1 010 1 011 4 100 7 101 9 110 11 111 13

[0170] Taking Table 3 as an example, the TPC command field has a value of 100, and the first power adjustment value is 5dBm; taking Table 4 as an example, the TPC command field has a value of 100, and the first power adjustment value is 7dBm. As can be seen from Tables 3 and 4, the TPC command field occupies more bits, allowing for more power adjustment values ​​to be indicated, thus resulting in a wider range of transmit power adjustments. Therefore, when the first device transmits a sensing signal, the second device can adaptively indicate a larger power adjustment value to ensure a higher transmit power for the sensing signal, thereby guaranteeing sensing performance.

[0171] It should be noted that the correspondence between the values ​​of the TPC command field and the power adjustment values ​​in Tables 3 and 4 is only an example. The embodiments of this application do not limit the size of the power adjustment value indicated by each value of the TPC command field.

[0172] Whether it's a communication signal or a sensing signal, the second device will indicate the power adjustment value through the TPC command field. To make it clear to the first device whether the power adjustment value indicated by the TPC command field is for a communication signal or a sensing signal, the second device can also indicate whether the TPC command field is for a communication signal or a sensing signal.

[0173] For example, the second device may also send a fourth indication message to the first device, which can be used to indicate that the third indication message is used for sensing. Alternatively, the third indication message may also include a first field, which indicates that the third indication message is used for communication or sensing. For example, the first field occupies 1 bit, and a value of 0 indicates that the third indication message is used for communication; a value of 1 indicates that the third indication message is used for sensing. Alternatively, the third indication message includes a first field, and by default, the third indication message is used for sensing.

[0174] For example, a TPC command field can be a dedicated TPC command field for sensing. That is, there are two types of TPC command fields: one for sensing and the other for communication. The first device can determine whether the third indication information is for sensing or communication based on the type of TPC command field included in the third indication information.

[0175] S802, The first device determines the first transmission power based on the first power adjustment value.

[0176] The first device receives the third indication information, determines the first power adjustment value based on the TPC command field, and then determines the first transmit power based on the first power adjustment value. The method by which the first device determines the first transmit power based on the first power adjustment value is the same as the method by which the transmitting end determines the transmit power based on the aforementioned uplink power control. For example, the first transmit power P satisfies:

[0177] in,

[0178] h b,f,c (i,l) is the first power adjustment value, indicated by the TPC command field.

[0179] S803, The first device sends a sensing signal to the second device at a first transmission power.

[0180] The first device determines a first transmission power and sends a sensing signal to the second device at the first transmission power. Correspondingly, the second device receives the sensing signal from the first device.

[0181] In the aforementioned communication method 800, by extending the length of the TPC command field, more power adjustment values ​​can be indicated, thereby expanding the range of transmit power adjustment. For sensing, a larger power adjustment value can be indicated, resulting in a larger transmit power determined by the transmitter to better meet sensing performance requirements.

[0182] One or more of the communication methods 600, 700, and 800 provided in this application embodiment can be combined. For example, communication method 600 and communication method 800 can be combined, that is, the second device can indicate through the second indication information. The first power adjustment value is indicated by the third indication information, and the first device can adjust accordingly. The first transmit power is determined by the first power adjustment value.

[0183] The second device receives the sensing signal and performs sensing-related processing to obtain the sensing results. This processing includes handling the sensing signal, such as performing an inverse discrete Fourier transform (IDFT) on the signal and a discrete Fourier transformation on the continuously received sensing symbols to obtain the sensing signal in range-Doppler domain representation. When the sensing signal for each target is represented in the range-Doppler domain, it corresponds to a two-dimensional sinc function; that is, each target corresponds to a local peak in the range-Doppler domain representation. The range-Doppler domain representation of the sensing signal is actually a complex two-dimensional array. Taking the modulus of this complex two-dimensional array point by point yields a modulus value corresponding to a local peak. This local peak corresponds to an index in two dimensions, allowing the determination of the frequency of the single-frequency sine wave corresponding to the target and the phase difference of the sensing signal in different transmission intervals. This, in turn, provides the range and velocity information of the target.

[0184] In the embodiments provided above, the methods provided by the embodiments of this application are described using the execution of a first device and a second device as examples. In this application, each embodiment can be implemented independently or in combination based on certain inherent connections; in each embodiment, different implementation methods can be implemented in combination or independently. To achieve the functions in the methods provided by the embodiments of this application above, the steps executed by the first device can be implemented by different functional entities constituting the first device. The steps executed by the second device can be implemented by different functional entities constituting the second device. For example, the second device is a network device, and the second device can be a CU-DU architecture, where the CU can generate first indication information and the DU can send the first indication information. To achieve the functions in the methods provided by the embodiments of this application above, the terminal device and the network device can include hardware structures and / or software modules, implementing the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. Whether a certain function is executed in the form of hardware structures, software modules, or hardware structures plus software modules depends on the specific application and design constraints of the technical solution.

[0185] Based on the same inventive concept as the method embodiments, this application provides a communication device. The communication device used to implement the above method in the embodiments of this application is described below with reference to the accompanying drawings. The content above can be used in subsequent embodiments, and repeated content will not be repeated.

[0186] Figure 9 This is a schematic block diagram of a communication device 900 provided in an embodiment of this application. The communication device 900 can be a terminal device or a network device as described in the above embodiments. For example, the communication device 900 can be... Figure 1 The communication device 900 can be a terminal device; or, the communication device 900 can be a chip (system) in the terminal device; or, the communication device 900 can be a software module of the terminal device. The communication device 900 can correspondingly implement the functions or steps implemented by the terminal device in the various method embodiments described above. For example, the communication device 900 can be... Figure 1The communication device 900 can be a network device; or, the communication device 900 can be a chip (system) within the network device; or, the communication device 900 can be a software module of the network device. The communication device 900 can correspondingly implement the functions or steps implemented by the network device in the various method embodiments described above. The communication device 900 may include a processing module 910 and a transceiver module 920. Optionally, it may also include a storage module, which can be used to store instructions (code or program) and / or data. The storage module may be, for example, a memory. The processing module 910 and the transceiver module 920 may be coupled to the storage module. For example, the processing module 910 can read instructions (code or program) and / or data from the storage module to implement the corresponding method. When the communication device 900 is a chip in a terminal device or network device, the storage module may be a storage module within the chip, such as a register or cache. For example, the storage module can also be an external storage module located within the terminal device or network device, such as read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, random access memory (RAM), etc. The aforementioned units can be configured independently, or partially or completely integrated.

[0187] Processing module 910 may be a processor or controller, such as a general-purpose central processing unit (CPU), a general-purpose processor, a digital signal processing unit (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc. Transceiver module 920 is a transceiver, interface circuit, bus, pin, or other possible communication interface for receiving signals from other devices. For example, when the device is implemented as a chip, transceiver module 920 is an interface circuit for the chip to receive signals from other chips or devices, or an interface circuit for the chip to send signals to other chips or devices.

[0188] In one implementation, the communication device 900 can correspondingly implement the behavior and functions of the first device in the above method embodiments. The communication device 900 can be a terminal device, a component (e.g., a chip or circuit) applied in the terminal device, a chip or chipset in the terminal device, or a part of a chip used to perform related method functions. It can also be a software module capable of implementing the methods executed by the first device in the above methods (such as one or more of communication methods 500 to 700), and is not limited thereto. For details, please refer to the relevant content of the foregoing method embodiments; further details will not be repeated here.

[0189] For example, the transceiver module 920 is used to transmit capability information, receive first indication information, and transmit a sensing signal to the second device at a first transmission power. The capability information indicates the maximum transmission power of the communication device 900. The first indication information indicates the first transmission power of the sensing signal. The first transmission power is determined based on parameters including the maximum transmission power of the communication device 900, the transmitting antenna power of the communication device 900, the path loss from the communication device 900 to the second device, and the receiving antenna power of the second device. The processing module 910 is used to determine the first transmission power.

[0190] As an optional implementation, the first transmit power is less than or equal to the difference between a first value and a second value. The first value is the sum of the maximum transmit power of the communication device 900, the transmit antenna power of the communication device 900, and the receive antenna power of the second device. The second value is the path loss from the communication device 900 to the second device.

[0191] As an optional implementation, the parameters also include the maximum received power of the second device, and the first transmitted power is less than or equal to the minimum of the third value and the maximum received power of the second device. The third value is the difference between the first value and the second value. The first value is the sum of the maximum transmitted power of the communication device 900, the transmitted antenna power of the communication device 900, and the received antenna power of the second device. The second value is the path loss from the communication device 900 to the second device.

[0192] As an optional implementation, the transceiver module 920 is specifically used to: send a sensing signal to the second device at a first transmission power when the distance between the communication device 900 and the second device is less than a first distance.

[0193] As an optional implementation, the first indication information also includes a first distance.

[0194] As an optional implementation, the first indication information indicating the first transmission power of the sensing signal includes: the first indication information including the first transmission power; or, the first indication information indicating a first offset value in a first set, the first set including at least one offset value. Wherein, the first transmission power is the difference between the maximum transmission power of the communication device 900 and the first offset value.

[0195] For example, the transceiver module 920 is configured to transmit capability information, receive second indication information, and transmit a sensing signal to the second device at a first transmission power. The capability information indicates the maximum transmission power of the communication device. The second indication information includes a first power value, which is related to the scheduling bandwidth of the sensing signal. The processing module 910 is configured to determine the first transmission power based on the first power value.

[0196] As an optional implementation, the second indication information is also used to indicate the first power value for sensing the signal.

[0197] For example, the transceiver module 920 is configured to receive third indication information and transmit a sensing signal at a first transmit power. The third indication information includes a TPC command field indicating a first power adjustment value used for sensing. The processing module 910 is configured to determine the first transmit power based on the first power adjustment value.

[0198] As an optional implementation, the third indication information occupies N bits, where N is an integer greater than 2.

[0199] As an optional implementation, the TPC command is a TPC command specifically for sensing.

[0200] As an optional implementation, the transceiver module 920 is also used to receive a fourth indication information, which is used to indicate that the third indication information is used for sensing.

[0201] In one implementation, the communication device 900 can correspondingly implement the behavior and functions of the second device in the above method embodiments. The communication device 900 can be a network device, a component (e.g., a chip or circuit) applied in a network device, a chip or chipset in a network device, or a part of a chip used to perform related method functions. It can also be a software module capable of implementing the methods executed by the second device in the above methods (such as one or more of communication methods 500 to 700), and is not limited thereto. For details, please refer to the relevant content of the foregoing method embodiments; further details will not be repeated here.

[0202] For example, the transceiver module 920 is used to receive capability information and send first indication information. The capability information indicates the maximum transmit power of the first device. The first indication information indicates the first transmit power of the sensed signal. The processing module 910 is used to determine the first transmit power based on parameters including the maximum transmit power of the first device, the transmit antenna power of the first device, the path loss from the first device to the communication device 900, and the receive antenna power of the communication device 900 to generate the first indication information.

[0203] As an optional implementation, the processing module 910 is specifically used to determine whether the first transmit power is less than or equal to the difference between a first value and a second value. The first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the communication device 900. The second value is the path loss from the first device to the communication device 900.

[0204] As an optional implementation, the parameters also include the maximum received power of the communication device 900. The processing module 910 is specifically used to determine that the first transmit power is less than or equal to the minimum of the third value and the maximum received power of the communication device 900. The third value is the difference between the first value and the second value. The first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the communication device 900. The second value is the path loss from the first device to the communication device 900.

[0205] As an optional implementation, the transceiver module 920 is specifically used to: send first indication information when the distance between the communication device 900 and the first device is less than a first distance.

[0206] As an optional implementation, the first indication information also includes a first distance.

[0207] As an optional implementation, the first indication information indicating the first transmission power of the sensing signal includes: the first indication information including the first transmission power; or, the first indication information indicating a first offset value in a first set, the first set including at least one offset value. Wherein, the first transmission power is the difference between the maximum transmission power of the first device and the first offset value.

[0208] For example, the transceiver module 920 is used to receive capability information and send second indication information. The capability information indicates the maximum transmit power of the communication device. The second indication information includes a first power value, which is related to the scheduling bandwidth of the sensing signal, and is used to determine the first transmit power of the sensing signal. The processing module 910 is used to generate the second indication information.

[0209] As an optional implementation, the second indication information is also used to indicate the first power value for sensing the signal.

[0210] For example, processing module 910 is used to generate third indication information, which includes a TPC command field indicating a first power adjustment value used to determine a first transmit power of the sensing signal. Transceiver module 920 is used to transmit the third indication information and transmit the sensing signal at the first transmit power. The third indication information includes a TPC command field indicating the first power adjustment value used for sensing. As an optional implementation, the third indication information occupies N bits, where N is an integer greater than 2.

[0211] As an optional implementation, the TPC command is a TPC command specifically for sensing.

[0212] As an optional implementation, the transceiver module 920 is also used to send a fourth indication message, which is used to indicate that the third indication message is used for sensing.

[0213] When the communication device 900 is a chip-based device or circuit, the transceiver module can be an input / output circuit and / or a communication interface; the processing module is an integrated processor, microprocessor, or integrated circuit.

[0214] Figure 10 This is a schematic block diagram of a communication device 1000 provided in an embodiment of this application. The communication device 1000 can be a terminal device or a network device as described in the above embodiments. For example, the communication device 1000 can be... Figure 1 The terminal device or the chip (system) within the terminal device. In the embodiments of this application, the chip system may be composed of chips or may include chips and other discrete devices. Specific functions can be found in the descriptions of the above method embodiments. For example, the communication device 1000 may be... Figure 1 The network device or the chip (system) within the network device. In the embodiments of this application, the chip system may be composed of a chip, or it may include chips and other discrete devices. For specific functions, please refer to the description in the above method embodiments.

[0215] The communication device 1000 includes one or more processors 1001, used to implement or support the communication device 1000 in implementing the functions of the terminal device or network device in the methods provided in the embodiments of this application. For details, please refer to the detailed description in the method examples, which will not be repeated here. The processor 1001 can also be called a processing unit or processing module, and can implement certain control functions. The processor 1001 can be a general-purpose processor or a dedicated processor, etc. For example, it includes: a baseband processor, a central processing unit, an application processor, a modem processor, a graphics processor, an image signal processor, a digital signal processor, a video codec processor, a controller, a memory, and / or a neural network processor, etc. The baseband processor can be used to process communication protocols and communication data. The central processing unit can be used to control the communication device 1000 (e.g., a network device or a terminal device), execute software programs, and / or process data. Different processors can be independent devices or integrated into one or more processors, for example, integrated on one or more application-specific integrated circuits.

[0216] In one design, processor 1001 may include program 1003 (sometimes also referred to as code or instructions), which can be executed on processor 1001 to cause communication device 1000 to perform the methods described in the embodiments below. In yet another possible design, communication device 1000 includes circuitry (…). Figure 10 (Not shown), the circuit is used to implement the functions of the terminal device or network device in the above embodiments.

[0217] In one design, the communication device 1000 may include one or more memories 1002 storing a program 1004 (sometimes referred to as code or instructions), which can be run on the processor 1001 to cause the communication device 1000 to perform the methods described in the above method embodiments.

[0218] In one design, the processor 1001 and / or memory 1002 may include an artificial intelligence (AI) module 1007 and an AI module 1008, which are used to implement AI-related functions. The AI ​​modules can be implemented through software, hardware, or a combination of both. For example, the AI ​​module may include a RAN intelligent controller (RIC) module. For example, the AI ​​module may be a near real-time RIC or a non-real-time RIC.

[0219] In one possible design, the processor 1001 and / or memory 1002 may also store data. The processor and memory may be configured separately or integrated together.

[0220] In one possible design, the communication device 1000 may further include a transceiver 1005 and / or an antenna 1006. The processor 1001, sometimes referred to as a processing unit, controls the communication device 1000. The transceiver 1005, sometimes referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, is used to realize the transmission and reception functions of the communication device 1000 through the antenna 1006.

[0221] In one possible design, the communication device 1000 may further include one or more of the following components: a wireless communication module, an audio module, an external memory interface, internal memory, a universal serial bus (USB) interface, a power management module, an antenna, a speaker, a microphone, an input / output module, a sensor module, a motor, a camera, or a display screen, etc. It is understood that in some embodiments, the communication device 1000 may include more or fewer components, or some components may be integrated, or some components may be separated. These components may be implemented in hardware, software, or a combination of software and hardware.

[0222] The communication device in the above embodiments can be a terminal device, a circuit, a chip applied in a terminal device, or other combined devices or components having the aforementioned terminal device. Alternatively, the communication device in the above embodiments can be a network device, a circuit, a chip applied in a network device, or other combined devices or components having the aforementioned network device. When the communication device is a terminal device or a network device, the transceiver module can be a transceiver, which may include an antenna and radio frequency circuits, etc., and the processing module can be a processor, such as a CPU. When the communication device is a chip system, the communication device can be an FPGA, a dedicated ASIC, a system-on-chip (SoC), a CPU, a network processor (NP), a DSP, a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips. The processing module can be the processor of the chip system. The transceiver module or communication interface can be the input / output interface or interface circuit of the chip system. For example, the interface circuit can be a code / data read / write interface circuit. The interface circuit can be used to receive code instructions (the code instructions are stored in memory and can be read directly from memory or through other devices) and transmit them to the processor; the processor can then execute the code instructions to perform the methods described in the above method embodiments. Alternatively, the interface circuit can also be a signal transmission interface circuit between a communication processor and a transceiver.

[0223] This application also provides a communication system, which includes at least one terminal device and at least one network device. The terminal device is used to implement the above-described... Figures 6 to 8 A first device that implements one or more of the functions related to the method shown in the figure, the network device being used to implement the above. Figures 6 to 8 A second device that performs one or more functions related to the method shown in the figure. Please refer to the relevant descriptions in the above method embodiments for details, which will not be repeated here.

[0224] This application also provides a computer-readable storage medium, including instructions that, when executed on a computer, cause the computer to perform the above-described actions. Figures 6 to 8 The method executed by the first device or the second device in one or more of the methods shown in the figure.

[0225] This application also provides a computer program product, including computer program code, which, when executed, causes the computer to perform the above-mentioned... Figures 6 to 8 The method executed by the first device or the second device in one or more of the methods shown in the figure.

[0226] This application provides a chip system, which includes a processor and may further include a memory for implementing the aforementioned. Figures 6 to 8 The chip system may consist of a chip or include chips and other discrete components. This chip system may be composed of chips or may include chips and other discrete components.

[0227] To achieve the above Figures 9-10 In addition to the functions of the communication device, this application also provides a chip, including a processor, for supporting the communication device in implementing the functions involved in the first or second device in the above method embodiments. In one possible design, the chip is connected to a memory or the chip includes a memory for storing necessary computer programs or instructions and data for the communication device.

[0228] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0229] Those skilled in the art will recognize that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0230] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0231] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0232] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0233] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essential contributing part of the technical solution of this application, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, external hard drives, ROM, RAM, magnetic disks, or optical disks.

[0234] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A communication method, characterized in that, include: Send capability information, the capability information being used to indicate the maximum transmit power of the first device; The system receives first indication information, which indicates a first transmission power of the sensing signal. The first transmission power is determined based on parameters, including the maximum transmission power of the first device, the transmission antenna power of the first device, the path loss from the first device to the second device, and the receiving antenna power of the second device; wherein the second device is the receiving device of the sensing signal. The sensing signal is transmitted to the second device at the first transmission power.

2. The method as described in claim 1, characterized in that, The first transmit power is less than or equal to the difference between a first value and a second value, wherein the first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device, and the second value is the path loss from the first device to the second device.

3. The method as described in claim 1, characterized in that, The parameters also include the maximum received power of the second device, the first transmit power being less than or equal to the minimum of the third value and the maximum received power of the second device, the third value being the difference between the first value and the second value, wherein the first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device, and the second value is the path loss from the first device to the second device.

4. The method according to any one of claims 1-3, characterized in that, Sending the sensing signal to the second device at the first transmission power includes: The distance between the first device and the second device is less than a first distance, and the sensing signal is sent to the second device at the first transmission power.

5. The method as described in claim 4, characterized in that, The first indication information also includes the first distance.

6. The method as described in claim 5, characterized in that, The first indication information indicates the first transmission power of the sensing signal, including: The first indication information includes the first transmission power; or, The first indication information indicates a first offset value in a first set, the first set including at least one offset value; wherein, the first transmission power is the difference between the maximum transmission power of the first device and the first offset value.

7. A communication method, characterized in that, include: Send capability information, the capability information being used to indicate the maximum transmit power of the first device; Receive second indication information, the second indication information including a first power value, the first power value being related to the scheduling bandwidth of the sensing signal; A first transmission power is determined based on the first power value, and the sensing signal is transmitted to the second device at the first transmission power.

8. The method as described in claim 7, characterized in that, The second indication information is also used to indicate that the first power value is used for the sensing signal.

9. A communication method, characterized in that, include: Receive capability information, the capability information being used to indicate the maximum transmit power of the first device; The first transmission power of the sensing signal is determined based on the maximum transmission power of the first device, the transmission antenna power of the first device, the path loss from the first device to the second device, and the receiving antenna power of the second device. Send a first indication message, which is used to indicate the first transmission power.

10. The method as described in claim 9, characterized in that, The first transmit power is less than or equal to the difference between a first value and a second value, wherein the first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device, and the second value is the path loss from the first device to the second device.

11. The method as described in claim 9, characterized in that, The parameters also include the maximum received power of the second device, the first transmit power being less than or equal to the minimum of the third value and the maximum received power of the second device, the third value being the difference between the first value and the second value, wherein the first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device, and the second value is the path loss from the first device to the second device.

12. The method according to any one of claims 9-11, characterized in that, Send the first instruction message, including: When the distance between the second device and the first device is less than the first distance, the first indication information is sent.

13. The method as described in claim 12, characterized in that, The first indication information is used to indicate the first transmission power, including: The first indication information includes the first transmission power; or, The first indication information indicates a first offset value in a first set, the first set including at least one offset value; wherein, the first transmission power is the difference between the maximum transmission power of the first device and the first offset value.

14. A communication method, characterized in that, include: Receive capability information, the capability information being used to indicate the maximum transmit power of the first device; Send a second indication message, the second indication message including a first power value, the first power value being related to the scheduling bandwidth of the sensing signal, the first power value being used to determine the first transmission power of the sensing signal.

15. The method as described in claim 14, characterized in that, The second indication information is also used to indicate that the first power value is used for the sensing signal.

16. A communication device, characterized in that, include: A transceiver module is used to send capability information, receive first indication information, and send a sensing signal to a second device at a first transmission power; wherein the capability information is used to indicate the maximum transmission power of the communication device; the first indication information is used to indicate the first transmission power of the sensing signal, the first transmission power being determined based on parameters, the parameters including the maximum transmission power of the communication device, the transmitting antenna power of the communication device, the path loss from the communication device to the second device, and the receiving antenna power of the second device; The processing module is used to generate the first indication information.

17. The apparatus as claimed in claim 16, characterized in that, The first transmit power is less than or equal to the difference between a first value and a second value, wherein the first value is the sum of the maximum transmit power of the communication device, the transmit antenna power of the communication device, and the receive antenna power of the second device, and the second value is the path loss from the communication device to the second device.

18. The apparatus as claimed in claim 16, characterized in that, The parameters also include the maximum received power of the second device, the first transmit power being less than or equal to the minimum of the third value and the maximum received power of the second device, the third value being the difference between the first value and the second value, wherein the first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device, and the second value is the path loss from the first device to the second device.

19. The apparatus as claimed in any one of claims 16-18, characterized in that, The transceiver module is specifically used for: When the distance between the communication device and the second device is less than the first distance, the sensing signal is transmitted to the second device at the first transmission power.

20. The apparatus as claimed in claim 19, characterized in that, The first indication information indicates the first transmission power of the sensing signal, including: The first indication information includes the first transmission power; or, The first indication information indicates a first offset value in a first set, the first set including at least one offset value; wherein, the first transmission power is the difference between the maximum transmission power of the communication device and the first offset value.

21. A communication device, characterized in that, include: A transceiver module is used to send capability information, receive second indication information, and send a sensing signal to a second device at a first transmission power; wherein the capability information is used to indicate the maximum transmission power of the communication device; the second indication information includes a first power value, which is related to the scheduling bandwidth of the sensing signal; The processing module is used to determine the first transmission power based on the first power value.

22. A communication device, characterized in that, include: A transceiver module is used to receive capability information and send first indication information; wherein the capability information is used to indicate the maximum transmission power of the first device, and the first indication information is used to indicate the first transmission power; The processing module is configured to determine the first transmission power of the sensing signal based on the maximum transmission power of the first device, the transmission antenna power of the first device, the path loss from the first device to the communication device, and the receiving antenna power of the communication device.

23. The apparatus as claimed in claim 22, characterized in that, The first transmit power is less than or equal to the difference between a first value and a second value, wherein the first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the communication device, and the second value is the path loss from the first device to the communication device.

24. The apparatus as claimed in claim 22, characterized in that, The parameters also include the maximum received power of the second device, the first transmit power being less than or equal to the minimum of the third value and the maximum received power of the second device, the third value being the difference between the first value and the second value, wherein the first value is the sum of the maximum transmit power of the first device, the transmit antenna power of the first device, and the receive antenna power of the second device, and the second value is the path loss from the first device to the second device.

25. The apparatus as claimed in any one of claims 22-24, characterized in that, The transceiver module is specifically used for: When the distance between the communication device and the first device is less than a first distance, the first indication information is sent.

26. The apparatus as claimed in claim 25, characterized in that, The first indication information is used to indicate the first transmission power, including: The first indication information includes the first transmission power; or, The first indication information indicates a first offset value in a first set, the first set including at least one offset value; wherein, the first transmission power is the difference between the maximum transmission power of the first device and the first offset value.

27. A communication device, characterized in that, include: A transceiver module is used to receive capability information and send second indication information; wherein the capability information is used to indicate the maximum transmit power of the first device; the second indication information includes a first power value, the first power value is related to the scheduling bandwidth of the sensing signal, and the first power value is used to determine the first transmit power of the sensing signal; The processing module is used to generate the second indication information.

28. A communication device, characterized in that, The communication device includes a processor and a memory, the memory for storing a computer program, and the processor for executing the computer program stored in the memory, causing the communication device to perform the method as described in any one of claims 1 to 6, or causing the communication device to perform the method as described in any one of claims 7 to 8, or causing the communication device to perform the method as described in any one of claims 9 to 13, or causing the communication device to perform the method as described in any one of claims 14 to 15.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that, when run on a computer, causes the computer to perform the method as described in any one of claims 1 to 6, or causes the computer to perform the method as described in any one of claims 7 to 8, or causes the computer to perform the method as described in any one of claims 9 to 13, or causes the computer to perform the method as described in any one of claims 14 to 15.

30. A computer program product, characterized in that, The computer program product includes a computer program that, when run on a computer, causes the computer to perform the method as described in any one of claims 1 to 6, or causes the computer to perform the method as described in any one of claims 7 to 8, or causes the computer to perform the method as described in any one of claims 9 to 13, or causes the computer to perform the method as described in any one of claims 14 to 15.

31. A chip system, characterized in that, The chip system includes: A processor and an interface, the processor being configured to call and execute instructions from the interface, wherein when the processor executes the instructions, it implements the method as described in any one of claims 1 to 6, or the method as described in any one of claims 7 to 8, or the method as described in any one of claims 9 to 13, or the method as described in any one of claims 14 to 15.

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