WO2025251983A1 - 感知资源指示方法和装置 - Google Patents

感知资源指示方法和装置

Info

Publication number
WO2025251983A1
WO2025251983A1 PCT/CN2025/097742 CN2025097742W WO2025251983A1 WO 2025251983 A1 WO2025251983 A1 WO 2025251983A1 CN 2025097742 W CN2025097742 W CN 2025097742W WO 2025251983 A1 WO2025251983 A1 WO 2025251983A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency band
frequency
frequency bands
ratio
bandwidth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/097742
Other languages
English (en)
French (fr)
Inventor
彭晓辉
罗嘉金
周保建
何佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2025251983A1 publication Critical patent/WO2025251983A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0457—Variable allocation of band or rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

Definitions

  • This application relates to the field of sensing technology, and more specifically, to a method and apparatus for indicating sensing resources.
  • Wireless sensing technology analyzes changes in wireless signals during propagation to obtain the characteristics of the signal propagation space (or channel), thereby enabling scene perception.
  • the scene can include biological factors (e.g., the presence of living organisms and their location, posture, and actions) as well as other non-biological factors (e.g., buildings, moving vehicles).
  • This application provides a method and apparatus for indicating sensing resources.
  • Multiple frequency bands indicated to the sensing device can meet certain conditions, enabling the sensing signals corresponding to these frequency bands to balance ranging resolution and ranging sidelobe performance, thereby supporting the sensing device to effectively use multiple frequency bands for sensing.
  • the method provided in the first aspect can be executed by a first device.
  • the first device in this application can refer to the first device itself (e.g., a network device, terminal device, or other device), a component within the first device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first device.
  • the following description uses a first device as an example.
  • the method includes: determining N frequency bands, where N is an integer greater than 1; a first ratio value is defined as the ratio between the bandwidth of a first frequency band and a first interval among the N frequency bands; the first interval is defined as the interval between the maximum frequency of a second frequency band and the minimum frequency of a third frequency band; the second frequency band and the third frequency band are any two adjacent frequency bands among the N frequency bands; the maximum frequency of the second frequency band is less than the minimum frequency of the third frequency band; the first ratio value satisfies a first condition; and the first frequency band is either the second frequency band, the third frequency band, or any frequency band among the N frequency bands other than the second and third frequency bands; transmitting first information, which is used to indicate the N frequency bands; the N frequency bands are used to transmit or receive a first sensing signal; the first condition is related to a first parameter, which is used to indicate a threshold for the ranging sidelobe performance of the first sensing signal.
  • the first device can indicate multiple frequency bands to the sensing device, which can be used to transmit or receive the first sensing signal.
  • the first ratio in the above scheme can indicate the interval between two adjacent frequency bands (referred to as "band interval"), for example, the aforementioned first interval.
  • the band interval has a certain impact on ranging resolution performance and ranging sidelobe performance. Assuming the bandwidth of the frequency bands remains constant, a larger band interval results in better ranging resolution performance of the first sensing signal, but lower ranging sidelobe performance; a smaller band interval results in lower ranging resolution performance of the first sensing signal, but better ranging sidelobe performance.
  • the band interval of the multiple frequency bands used for sensing satisfies certain conditions, and these conditions are related to a parameter used to indicate the threshold (or desired ranging sidelobe performance) for ranging sidelobe performance. Therefore, the first condition can balance ranging resolution performance and ranging sidelobe performance by constraining the band interval of these frequency bands. For example, although increasing the frequency band spacing can improve ranging resolution performance, in the embodiments of this application, due to the constraint of the first condition, the frequency band spacing will not be increased indefinitely.
  • the frequency band spacing will be increased in a limited manner while ensuring that the actual ranging sidelobe performance of the first sensing signal meets the expected ranging sidelobe performance, thereby improving the ranging resolution performance while meeting the requirements of the expected ranging sidelobe performance.
  • the threshold value of the ranging sidelobe performance of the first sensing signal is less than the threshold value of the ranging sidelobe performance of the second sensing signal, and the first ratio is greater than the second ratio; wherein, the second sensing signal is transmitted or received on the M frequency bands, the ratio between the bandwidth of the fourth frequency band and the second interval in the M frequency bands is the second ratio, M is an integer greater than 1, the second interval is the interval between the maximum frequency of the fifth frequency band and the minimum frequency of the sixth frequency band, the fifth frequency band and the sixth frequency band are any two adjacent frequency bands in the M frequency bands, the maximum frequency of the fifth frequency band is less than the minimum frequency of the sixth frequency band, the bandwidth of the fourth frequency band is equal to the bandwidth of the first frequency band, and the fourth frequency band is: the fifth frequency band, or the sixth frequency band, or a frequency band in the M frequency bands other than the fifth frequency band and the sixth frequency band.
  • the frequency band spacing of the N frequency bands is less than the frequency band spacing of the M frequency bands. Therefore, better ranging sidelobe performance corresponds to a smaller frequency band spacing.
  • the N frequency bands can achieve the desired ranging sidelobe performance.
  • the first condition includes at least one of the following:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k is the first parameter
  • the first condition can be determined by looking up a table.
  • the processing overhead required to determine the first condition by looking up a table is small, therefore the above embodiments can reduce the processing overhead of the first device.
  • the first condition includes:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k is the first parameter
  • the first condition can be determined by a formula.
  • the formula requires less storage space to determine the first condition; therefore, the above embodiments can save storage space in the first device.
  • the first condition includes at least one of the following:
  • PSLR peak sidelobe ratio
  • dB decibels
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k and PSLR are the first parameters.
  • the first condition can be determined by looking up a table.
  • the processing overhead required to determine the first condition by looking up a table is small, therefore the above embodiments can reduce the processing overhead of the first device.
  • the first condition includes:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k and PSLR are the first parameters
  • PSLR represents the peak sidelobe ratio
  • the reference point for PSLR is... c represents the speed of light
  • M B/ ⁇ , where ⁇ represents the subcarrier spacing of the first frequency band.
  • the first condition can be determined by a formula.
  • the formula requires less storage space to determine the first condition; therefore, the above embodiments can save storage space in the first device.
  • the first information includes the indices of the N frequency bands.
  • the first information can include indices of N frequency bands.
  • the second device can quickly determine the N frequency bands based on their indices, improving the efficiency of the second device in determining the N frequency bands.
  • the first information includes the first parameter.
  • the first information may include a first parameter.
  • the receiving end of the first information can determine N subcarriers based on the first parameter.
  • the first information carries less content, thereby reducing signaling overhead.
  • the first information further includes first indication information, which is used to indicate at least one of the starting frequency of the N frequency bands, N, or the bandwidth of the first frequency band.
  • the first indication information can indicate multiple signaling combinations, so that the receiving end of the first information can determine N frequency bands.
  • this first ratio is a rounded integer.
  • the first ratio can be an integer obtained according to the first condition.
  • the N frequency bands corresponding to the first ratio are applicable to discretely distributed frequency bands within a given bandwidth, thereby improving the applicability of the scheme.
  • the N frequency bands include a seventh frequency band and an eighth frequency band, wherein the seventh frequency band is identical to at least one of the subcarrier spacing, cyclic prefix length, or frequency reference point of the eighth frequency band.
  • N frequency bands can have the same subcarrier spacing, cyclic prefix length, or frequency reference point.
  • the parameter configuration is simple and easy to implement.
  • the N frequency bands are N component carriers (CCs).
  • CCs N component carriers
  • the method further includes: transmitting or receiving the first sensing signal according to the N frequency bands.
  • a sensing method is provided.
  • the method provided in this second aspect can be executed by a second device.
  • the second device in this application can refer to the second device itself (e.g., a network device or a terminal device), a component within the second device (e.g., a processor, a chip, or a chip system), or a logic module or software capable of implementing all or part of the functions of the second device.
  • the following description uses a second device as an example.
  • the method includes: receiving first information, the first information indicating N frequency bands, where N is an integer greater than 1, a first ratio being the ratio between the bandwidth of a first frequency band and a first interval among the N frequency bands, the first interval being the interval between the maximum frequency of a second frequency band and the minimum frequency of a third frequency band, the second frequency band and the third frequency band being any two adjacent frequency bands among the N frequency bands, the maximum frequency of the second frequency band being less than the minimum frequency of the third frequency band, the first ratio satisfying a first condition, and the first frequency band being: the second frequency band, or the third frequency band, or a frequency band among the N frequency bands other than the second frequency band and the third frequency band; and transmitting or receiving a first sensing signal according to the N frequency bands, the first condition being related to a first parameter, the first parameter being used to indicate a threshold for the ranging sidelobe performance of the first sensing signal.
  • the threshold value of the ranging sidelobe performance of the first sensing signal is less than the threshold value of the ranging sidelobe performance of the second sensing signal, and the first ratio is greater than the second ratio; wherein, the second sensing signal is transmitted or received on the M frequency bands, the ratio between the bandwidth of the fourth frequency band and the second interval in the M frequency bands is the second ratio, M is an integer greater than 1, the second interval is the interval between the maximum frequency of the fifth frequency band and the minimum frequency of the sixth frequency band, the fifth frequency band and the sixth frequency band are any two adjacent frequency bands in the M frequency bands, the maximum frequency of the fifth frequency band is less than the minimum frequency of the sixth frequency band, the bandwidth of the fourth frequency band is equal to the bandwidth of the first frequency band, and the fourth frequency band is: the fifth frequency band, or the sixth frequency band, or a frequency band in the M frequency bands other than the fifth frequency band and the sixth frequency band.
  • the first condition includes at least one of the following:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k is the first parameter
  • the first condition includes:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k is the first parameter
  • the first condition includes at least one of the following:
  • PSLR peak sidelobe ratio
  • dB decibel
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k and PSLR are the first parameters.
  • the first condition includes:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k and PSLR are the first parameters
  • PSLR represents the peak sidelobe ratio
  • the reference point for PSLR is... c represents the speed of light
  • M B/ ⁇ , where ⁇ represents the subcarrier spacing of the first frequency band.
  • the first information includes the indices of the N frequency bands.
  • the first information includes the first parameter.
  • the first information further includes first indication information, which is used to indicate at least one of the starting frequency of the N frequency bands, N, or the bandwidth of the first frequency band.
  • this first ratio is a rounded integer.
  • the N frequency bands include a first frequency band and a second frequency band, wherein the first frequency band is identical to at least one of the subcarrier spacing, cyclic prefix length, or frequency reference point of the second frequency band.
  • the N frequency bands are N CCs.
  • a sensing device including a processing circuit (or processor) and an input/output interface (also referred to as an interface circuit), the input/output interface being used to input and/or output signals, the processing circuit being used to perform the first aspect and any possible method of the first aspect, or the processing circuit being used to perform the second aspect and any possible method of the second aspect.
  • a processing circuit or processor
  • an input/output interface also referred to as an interface circuit
  • the processing circuitry is used to communicate with other devices via an interface circuitry and to perform the first aspect and any possible method of the first aspect, or to perform the second aspect and any possible method of the second aspect.
  • This sensing device may include equipment or modules for performing the functions of the sensing device.
  • the sensing device may include modules or units corresponding to the methods/operations/steps/actions described in the first aspect and any possible implementation of the first aspect. These modules or units may be hardware circuits, software, or a combination of hardware circuits and software.
  • the first device includes a processing unit and a transceiver unit.
  • the processing unit can be used to determine N frequency bands, where N is an integer greater than 1.
  • a first ratio is defined as the ratio between the bandwidth of a first frequency band and a first interval among the N frequency bands.
  • the first interval is the interval between the maximum frequency of a second frequency band and the minimum frequency of a third frequency band.
  • the second and third frequency bands are any two adjacent frequency bands among the N frequency bands, and the maximum frequency of the second frequency band is less than the minimum frequency of the third frequency band.
  • the first ratio satisfies a first condition.
  • the first frequency band is either the second frequency band, the third frequency band, or any frequency band among the N frequency bands other than the second and third frequency bands.
  • the transceiver unit can be used to transmit first information indicating the N frequency bands.
  • the N frequency bands are used to transmit or receive a first sensing signal.
  • the first condition is related to a first parameter, which indicates a threshold for the ranging sidelobe performance of the first sensing signal.
  • the threshold value of the ranging sidelobe performance of the first sensing signal is less than the threshold value of the ranging sidelobe performance of the second sensing signal, and the first ratio is greater than the second ratio; wherein, the second sensing signal is transmitted or received on the M frequency bands, the ratio between the bandwidth of the fourth frequency band and the second interval in the M frequency bands is the second ratio, M is an integer greater than 1, the second interval is the interval between the maximum frequency of the fifth frequency band and the minimum frequency of the sixth frequency band, the fifth frequency band and the sixth frequency band are any two adjacent frequency bands in the M frequency bands, the maximum frequency of the fifth frequency band is less than the minimum frequency of the sixth frequency band, the bandwidth of the fourth frequency band is equal to the bandwidth of the first frequency band, and the fourth frequency band is: the fifth frequency band, or the sixth frequency band, or a frequency band in the M frequency bands other than the fifth frequency band and the sixth frequency band.
  • the first condition includes at least one of the following:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k is the first parameter
  • the first condition includes:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k is the first parameter
  • the first condition includes at least one of the following:
  • PSLR peak sidelobe ratio
  • dB decibels
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k and PSLR are the first parameters.
  • the first condition includes:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k and PSLR are the first parameters
  • PSLR represents the peak sidelobe ratio
  • the reference point for PSLR is... c represents the speed of light
  • M B/ ⁇ , where ⁇ represents the subcarrier spacing of the first frequency band.
  • the first information includes the indices of the N frequency bands.
  • the first information includes the first parameter.
  • the first information further includes first indication information, which is used to indicate at least one of the starting frequency of the N frequency bands, N, or the bandwidth of the first frequency band.
  • this first ratio is a rounded integer.
  • the N frequency bands include a seventh frequency band and an eighth frequency band, wherein the seventh frequency band is identical to at least one of the subcarrier spacing, cyclic prefix length, or frequency reference point of the eighth frequency band.
  • the N frequency bands are N CCs.
  • the method further includes: transmitting or receiving the first sensing signal according to the N frequency bands.
  • the sensing device may include modules or units corresponding to the methods/operations/steps/actions described in the second aspect and any possible implementation of the second aspect. These modules or units may be hardware circuits, software, or a combination of hardware circuits and software.
  • the second device includes a transceiver unit.
  • the transceiver unit can be used to receive first information indicating N frequency bands, where N is an integer greater than 1.
  • a first ratio is defined as the ratio between the bandwidth of a first frequency band and a first interval among the N frequency bands.
  • the first interval is the interval between the maximum frequency of a second frequency band and the minimum frequency of a third frequency band.
  • the second and third frequency bands are any two adjacent frequency bands among the N frequency bands.
  • the maximum frequency of the second frequency band is less than the minimum frequency of the third frequency band.
  • the first ratio satisfies a first condition.
  • the first frequency band is either the second frequency band, the third frequency band, or any frequency band among the N frequency bands other than the second and third frequency bands.
  • the transceiver unit can also be used to transmit or receive a first sensing signal based on the N frequency bands.
  • the first condition is related to a first parameter, which indicates a threshold for the ranging sidelobe performance of the first sensing
  • the threshold value of the ranging sidelobe performance of the first sensing signal is less than the threshold value of the ranging sidelobe performance of the second sensing signal, and the first ratio is greater than the second ratio; wherein, the second sensing signal is transmitted or received on the M frequency bands, the ratio between the bandwidth of the fourth frequency band and the second interval in the M frequency bands is the second ratio, M is an integer greater than 1, the second interval is the interval between the maximum frequency of the fifth frequency band and the minimum frequency of the sixth frequency band, the fifth frequency band and the sixth frequency band are any two adjacent frequency bands in the M frequency bands, the maximum frequency of the fifth frequency band is less than the minimum frequency of the sixth frequency band, the bandwidth of the fourth frequency band is equal to the bandwidth of the first frequency band, and the fourth frequency band is: the fifth frequency band, or the sixth frequency band, or a frequency band in the M frequency bands other than the fifth frequency band and the sixth frequency band.
  • the first condition includes at least one of the following:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k is the first parameter
  • the first condition includes:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k is the first parameter
  • the first condition includes at least one of the following:
  • PSLR peak sidelobe ratio
  • dB decibel
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k and PSLR are the first parameters.
  • the first condition includes:
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band
  • the reciprocal of k and PSLR are the first parameters
  • PSLR represents the peak sidelobe ratio
  • the reference point for PSLR is... c represents the speed of light
  • M B/ ⁇ , where ⁇ represents the subcarrier spacing of the first frequency band.
  • the first information includes the indices of the N frequency bands.
  • the first information includes the first parameter.
  • the first information further includes first indication information, which is used to indicate at least one of the starting frequency of the N frequency bands, N, or the bandwidth of the first frequency band.
  • this first ratio is a rounded integer.
  • the N frequency bands include a first frequency band and a second frequency band, wherein the first frequency band is identical to at least one of the subcarrier spacing, cyclic prefix length, or frequency reference point of the second frequency band.
  • the N frequency bands are N CCs.
  • a computer-readable storage medium stores a computer program or instructions that, when executed, cause the first aspect and any possible method of the first aspect to be performed (or implemented), or cause the second aspect and any possible method of the second aspect to be performed (or implemented).
  • a computer program product comprising a computer program or instructions that, when executed, cause the first aspect and any possible method of the first aspect to be performed (or implemented), or cause the second aspect and any possible method of the second aspect to be performed (or implemented).
  • a seventh aspect provides a sensing device, including a processor for executing a computer program (or computer-executable instructions) stored in a memory, and/or, via logic circuitry, causing any possible method of the first aspect to be executed (or implemented), or causing any possible method of the second aspect to be executed (or implemented).
  • a sensing device including a processor for executing a computer program (or computer-executable instructions) stored in a memory, and/or, via logic circuitry, causing any possible method of the first aspect to be executed (or implemented), or causing any possible method of the second aspect to be executed (or implemented).
  • the device also includes a memory.
  • the processor and memory are integrated together.
  • the memory is located outside the sensing device.
  • the processor may include one or more processors.
  • the sensing device further includes a communication interface for transmitting information, such as sending or receiving data and/or signals, with other devices.
  • the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface.
  • the sensing device of the third, fourth, or seventh aspect mentioned above can be a chip or a chip system.
  • a chip including a processor for calling a computer program or computer instructions in memory to cause any of the implementations of the first aspect to be executed (or implemented), or to cause any of the implementations of the second aspect to be executed (or implemented).
  • the chip also includes memory.
  • the processor and memory are integrated together.
  • the memory is located outside the chip.
  • the processor may include one or more processors.
  • the processor is coupled to the memory via an interface.
  • a sensing system including a first device and a second device, the first device being configured to perform the first aspect and any possible implementation thereof, and the second device being configured to perform the second aspect and any possible implementation thereof.
  • Figure 1 is a schematic diagram of a communication system.
  • Figure 2 is a schematic block diagram of some sensing systems.
  • Figure 3 is a schematic diagram of sensing distance measurement.
  • Figure 4 is a schematic diagram of a multi-band allocation provided in an embodiment of this application.
  • Figure 5 is a schematic diagram of some ranging response functions provided in the embodiments of this application.
  • Figure 6 is a schematic flowchart of a resource perception indication method provided in an embodiment of this application.
  • Figure 7 is a schematic diagram of some frequency bands or frequencies provided in the embodiments of this application.
  • Figure 8 is a schematic diagram of some other ranging response functions provided in the embodiments of this application.
  • Figure 9 is a schematic flowchart of another resource perception indication method provided in an embodiment of this application.
  • Figure 10 is a schematic flowchart of another resource perception indication method provided in the embodiments of this application.
  • FIG 11 is a schematic flowchart of another resource sensing indication method provided in an embodiment of this application.
  • Figure 12 is a schematic diagram of some frequency bands provided in the embodiments of this application.
  • Figure 13 is a schematic block diagram of a communication device according to an embodiment of this application.
  • Figure 14 is a schematic block diagram of another communication device according to an embodiment of this application.
  • 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 three relationships can exist. For example, A and/or B can mean: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. In the textual description of this application, the character “/” generally indicates that the preceding and following related objects are in an “or” relationship. “At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one of a, b, and c can mean: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a, b, and c.
  • a, b, and c can be single or multiple.
  • instruction or “for instruction” can include both direct and indirect instruction.
  • instruction information when describing instruction information as being used to instruct A, it may include whether the instruction information directly or indirectly instructs A, but does not necessarily mean that the instruction information carries A.
  • the indication methods involved in the embodiments of this application should be understood to cover various methods that enable the party to be indicated to obtain the information to be indicated.
  • the information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately.
  • the sending period and/or sending time of these sub-information can be the same or different. This application does not limit the sending method, for example.
  • the "instruction information" in the embodiments of this application can be an explicit instruction, that is, a direct instruction through signaling, or an instruction obtained by combining other rules or parameters with the parameters indicated by the signaling, or by deduction. It can also be an implicit instruction, that is, an instruction obtained based on rules or relationships, or based on other parameters, or by deduction. This application does not specifically limit it in this regard.
  • protocol can refer to standard protocols in the field of communications, such as 5G protocols, NR protocols, and related protocols applied in future communication systems; this application does not limit this term.
  • Predefined can include predefined terms, such as protocol definitions.
  • Preconfiguration can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device; this application does not limit the implementation method.
  • transmission can be uplink transmission, such as a terminal device sending a signal to a network device; transmission can also be downlink transmission, such as a network device sending a signal to a terminal device; transmission can also be sidelink transmission, such as a terminal device sending a signal to another terminal device.
  • transmission can be air interface level transmission, or it can be signal transmission from a chip input (I)/output (O) port, rather than air interface level transmission.
  • Sending information to XX (device) can be understood as the destination of the information being that device. This can include sending information directly or indirectly to that device.
  • "Receiving information from XX (device), or receiving information from XX (device)” can be understood as the source of the information being that device. This can include receiving information directly or indirectly from that device. Information may undergo necessary processing between the source and destination, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood in a similar way, and will not be repeated here.
  • sending can also be understood as the "output” of the chip interface
  • “receiving” can also be understood as the "input” of the chip interface.
  • sending can occur between devices, for example, between network devices and terminal devices via an air interface.
  • sending or “receiving” can also occur within a device, for example, between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.
  • configuration can be signaling configuration or can be described as configuration signaling.
  • signaling configuration includes configuration using signaling sent by the base station.
  • This signaling can be radio resource control (RRC) messages, downlink control information (DCI) messages, or system information blocks (SIBs).
  • RRC radio resource control
  • DCI downlink control information
  • SIBs system information blocks
  • signaling configuration can also be configured to the terminal device by pre-configured signaling, or configured to the terminal device through pre-configuration.
  • pre-configuration means defining or configuring the values of corresponding parameters in advance using a protocol, and storing them in the terminal device during communication.
  • the pre-configured messages can be modified or updated when the terminal device is connected to the network.
  • sequence number of each process 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.
  • references to "one embodiment” or “some embodiments” as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases “in one embodiment,” “in some embodiments,” “in other embodiments,” “in still other embodiments,” etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean “one or more, but not all, embodiments,” unless otherwise specifically emphasized.
  • the terms “comprising,” “including,” “having,” and variations thereof mean “including but not limited to,” unless otherwise specifically emphasized.
  • 5G 5th generation
  • LTE Long Term Evolution
  • NR New Radio
  • NB-IoT Narrow Band Internet of Things
  • eMTC Enhanced Machine-Type Communication
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra Reliable Low Latency Communications
  • satellite communication systems LTE-Machine-to-Machine (LTE-M) systems, or future communication systems and other systems that evolve after 5G.
  • FIG 1 is a schematic diagram of a communication system 100.
  • the communication system 100 includes a wireless access network 110 and a core network 120.
  • the communication system 100 may also include an Internet 130.
  • the wireless access network 110 may include at least one network device (111a and 111b in Figure 1) and at least one terminal device (112a-112j in Figure 1).
  • the terminal device is connected to the network device wirelessly.
  • the network device is connected to the core network 120 wirelessly or via a wired connection.
  • the core network 120 may include one or more core network devices.
  • the core network device and the network device may be independent physical devices, or the functions of the core network device and the logical functions of the network device may be integrated on the same physical device, or a single physical device may integrate some of the functions of the core network device and some of the functions of the network device.
  • Terminal devices and network devices can be interconnected via wired or wireless means. Terminal devices can communicate wirelessly with each other, network devices with each other, and terminal devices with each other via air interface resources.
  • air interface resources may include at least one of time-domain resources, frequency-domain resources, code resources, and spatial resources. It should be noted that Figure 1 is only a schematic diagram, and the communication system 100 may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in Figure 1.
  • Network devices can be any type of device with wireless transceiver capabilities.
  • a network device can be a base station used to connect terminal devices to a radio access network (RAN).
  • RAN radio access network
  • Network devices are sometimes also referred to as access network devices or access network nodes. It is understood that the names of devices with network device functionality may differ in systems employing different wireless access technologies.
  • the embodiments of this application collectively refer to devices providing wireless communication access functionality to terminal devices as base stations.
  • network devices include, but are not limited to: various forms of macro base stations (as shown in Figure 1, 111a), micro base stations or indoor stations (as shown in Figure 1, 111b), pico base stations, small stations, balloon stations, relay stations, access points, etc.
  • Network equipment can include evolved node Bs (eNBs or eNodeBs) in LTE, access points (APs), wireless relay nodes, wireless backhaul nodes, transmission points (TPs), or transmission reception points (TRPs) in Wireless Fidelity (WiFi) systems. It can also include next-generation NodeBs (gNBs) or transmission points (TRPs or TPs) in 5G or 5.5G systems, one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, and network nodes constituting a gNB or transmission point, such as baseband units (BBUs) or distributed units (DUs). Furthermore, it can include network equipment, servers, or vehicle-mounted equipment in networks evolving after 5G.
  • eNBs or eNodeBs evolved node Bs
  • APs access points
  • TPs transmission points
  • TRPs transmission reception points
  • WiFi Wireless Fidelity
  • gNBs next-generation NodeBs
  • Network equipment can also be modules or units that perform some of the functions of a base station; for example, it can be a central unit (CU) or a DU.
  • APs can include WiFi 5, WiFi 6, or future WiFi APs.
  • this application is not limited; for example, an AP may also include an ultra-wideband (UWB) AP.
  • UWB ultra-wideband
  • the means for implementing the function of the network device can be the network device itself, or it can be a means that enables the network device to implement the function, such as a chip system, which can be installed in the network device.
  • the chip system can be composed of chips, or it can include chips and other discrete components.
  • network devices collaborate to assist the terminal in achieving wireless access, with each network device performing a portion of the base station's functions.
  • network devices could be CUs, DUs, CUs (control plane, CP), CUs (user plane, UP), or radio units (RUs).
  • CUs and DUs can be separate entities or included in the same network element, such as a BBU.
  • RUs can be included in radio equipment or radio units, such as RRUs, active antenna units (AAUs), or remote radio heads (RRHs).
  • CU or CU-CP and CU-UP
  • DU or RU
  • RU may have different names, but those skilled in the art will understand their meaning.
  • O-RAN open radio access network
  • 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
  • RU can also be called O-RU.
  • this application uses CU, CU-CP, CU-UP, DU, and RU as examples.
  • Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.
  • the embodiments of this application do not limit the specific technology or specific device form used in the network device.
  • Terminal equipment can be a device that provides voice and/or data connectivity to users; it can also be a device with wireless connectivity. Terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water (such as on ships); and it can also be deployed in the air (such as on airplanes, balloons, and satellites). Terminal equipment can also be referred to as user equipment (UE), access terminal, terminal, subscriber unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, wireless network equipment, user agent, or user device.
  • UE user equipment
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • remote station remote terminal, remote terminal, mobile device, user terminal, wireless network equipment, user agent, or user device.
  • the terminal device includes, but is not limited to: cellular phone, mobile phone, wireless data card, wireless modem, tablet computer, laptop computer, notebook computer, handheld computer, mobile internet device (MID), computer with wireless transceiver function, cordless phone, session initiation protocol (SIP) phone, smart phone, wireless local loop (WLAN).
  • cellular phone mobile phone, wireless data card, wireless modem, tablet computer, laptop computer, notebook computer, handheld computer, mobile internet device (MID), computer with wireless transceiver function, cordless phone, session initiation protocol (SIP) phone, smart phone, wireless local loop (WLAN).
  • MID mobile internet device
  • SIP session initiation protocol
  • WLAN wireless local loop
  • Alloop (WLL) stations personal digital assistants (PDAs), handsets with wireless communication capabilities, computing devices or other devices connected to wireless modems, in-vehicle devices (e.g., cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed trains, etc.), wearable devices (e.g., smartwatches, smart bracelets, pedometers, smart glasses, etc.), satellite terminals, terminal devices in the Internet of Things or the Internet of Vehicles, as well as any form of terminal in future networks, relay user equipment, or terminals in future evolved public land mobile networks (PLMNs), etc.
  • PLMNs public land mobile networks
  • Terminal devices can also be virtual reality (VR) devices, augmented reality (AR) devices, smart point-of-sale (POS) machines, customer-premises equipment (CPE), light user equipment (UE), reduced capability user equipment (REDCAP UE), machine-type communication (MTC) terminals, and industrial control devices.
  • Terminal devices can be categorized into various types, including terminal devices in autonomous driving, remote medical care, smart grids, transportation safety, smart cities, smart homes, tactile devices, smart home devices (e.g., refrigerators, televisions, air conditioners, electricity meters), intelligent robots, robotic arms, workshop equipment, wireless terminals in autonomous driving, and flying devices (e.g., intelligent robots, hot air balloons, drones, airplanes).
  • Terminal devices can also be vehicle-mounted devices, such as complete vehicle units, vehicle modules, vehicle chips, onboard units (OBUs), or telematics boxes (T-BOXs). They can also be other devices with terminal functions, such as devices that function as terminals in device-to-device (D2D) communication.
  • the terminal device can also be a terminal in a WiFi system, such as a UWB terminal. This application does not limit the terminal device.
  • the device for implementing the functions of the terminal device can be the terminal device itself, or it can be any device capable of supporting the terminal device in implementing those functions, such as a chip or chip system.
  • This device can be installed in the terminal device.
  • the chip system can consist of chips or include chips and other discrete components.
  • the device for implementing the functions of the terminal device is referred to as the terminal device, which can also be called a terminal.
  • the following description may use a UE as an example to illustrate the technical solutions provided in this application embodiment.
  • the terminal device can also be a user end (UE).
  • the UE mentioned in this application can be a user equipment or a user end.
  • base stations and terminals can be relative.
  • the helicopter or drone 112i in Figure 1 can be configured as a mobile base station.
  • terminal 112i For terminals 112j that access the wireless access network 110 via 112i, terminal 112i is a base station; however, for base station 111a, 112i is a terminal, meaning that 111a and 112i communicate via a wireless air interface protocol.
  • 111a and 112i can also communicate via a base station-to-base station interface protocol.
  • base stations and terminals can be collectively referred to as communication devices.
  • 111a and 111b in Figure 1 can be called communication devices with base station functions
  • 112a-112j in Figure 1 can be called communication devices with terminal functions.
  • Network devices and terminal devices can communicate via wireless links.
  • the transmission link from the network device to the terminal device can be called a downlink (DL) or downlink channel, used for transmitting downlink signals.
  • the transmission link from the terminal device to the network device can be called an uplink (UL) or uplink channel, used for transmitting uplink signals.
  • the network device can send downlink reference signals, such as cell-specific reference signals (CRS) or UE-specific reference signals, to the terminal device via the downlink channel for channel state information measurement, data demodulation, beam training, time-frequency parameter tracking, etc.
  • the terminal device can send uplink reference signals to the network device via the uplink channel for uplink and downlink channel measurement, data demodulation, etc.
  • Network devices and terminal devices can also transmit downlink data via the downlink channel and uplink data via the uplink channel.
  • Wireless communication can also occur between network devices and other network devices, as well as between terminal devices and other terminal devices.
  • the main function of a wireless communication system can include information exchange between transceivers.
  • the basic principle of a wireless communication system is as follows: the transmitter sends a specific waveform signal, which is received by the receiver after passing through a wireless channel. The received waveform signal is then processed to demodulate the signal transmitted by the transmitter.
  • radar can be applied to wireless sensing systems.
  • the basic principle of radar is that a transmitter sends a specific waveform signal, which is then received by a receiver after passing through a wireless channel.
  • the target of interest also called the sensing target or target
  • the target of interest can be extracted from the wireless channel.
  • integrated sensing and communication can integrate wireless communication and sensing technologies (e.g., using radar for sensing), that is, sensing the surrounding environment while achieving communication.
  • the communication system shown in Figure 1 can also be applied to sensing scenarios.
  • the communication system shown in Figure 1 can also be called a sensing system or a communication-sensing system.
  • the terminal device and network device shown in Figure 1 can sense the sensing target.
  • Figure 2 is a schematic block diagram of some sensing systems.
  • the dashed lines represent the sensing area.
  • the control unit can control the sensing process, such as determining the frequency of the signal used for sensing.
  • the transmitting unit can send signals.
  • the signals sent by the transmitting unit are reflected by the sensing target and can be received by the receiving unit.
  • the receiving unit can process the received signals to obtain the sensing result (or sensing report).
  • the sensing target may include cars, bicycles, drones, etc., but this application is not limited to these; the sensing target may also include other targets.
  • a network device e.g., a BS
  • a terminal device e.g., a UE
  • the signal transmitted by the network device is reflected by the sensing target (e.g., a vehicle) and can then be received by the terminal device.
  • the terminal device can process the received signal to obtain the sensing result.
  • the terminal device can perform signal processing at a processing node.
  • the processing node can be located inside or outside the terminal device; for example, it can be within a network device or a core network device.
  • the sensing results may include information such as the distance, velocity, angle, and intensity of the sensed target.
  • the distance of the sensed target may include the distance between the sensed target and the transmitting end, the distance between the sensed target and the receiving end, or the distance between the sensed target and other targets.
  • the velocity of the sensed target may include the linear velocity of the sensed target, or the angular velocity of the sensed target relative to the transmitting end, the receiving end, or other targets.
  • the angle of the sensed target may include the angle of the sensed target relative to the transmitting end, the receiving end, or other targets.
  • the intensity of the sensed target may include the mechanical strength of the sensed target, etc.
  • the terminal device can act as the transmitter, and the network device can act as the receiver and control unit.
  • the signal transmitted by the terminal device, after being reflected by the sensing target, can be received by the network device.
  • the network device can process the received signal to obtain the sensing result.
  • the network device can perform signal processing at a processing node.
  • the processing node can be inside or outside the network device; for example, the processing node can be in a core network device or other equipment.
  • network device #1 can act as both the transmitter and controller, while network device #2 can act as the receiver.
  • the signal transmitted by network device #1, after being reflected by the sensing target, can be received by network device #2.
  • Network device #2 can process the received signal to obtain the sensing result.
  • network device #2 can perform signal processing at a processing node.
  • the processing node can be located inside or outside network device #2; for example, it can be located in network device #1 or a core network device.
  • terminal device #1 can act as both the transmitter and the controller, while terminal device #2 can act as the receiver.
  • the signal transmitted by terminal device #1, after being reflected by the sensing target, can be received by terminal device #2.
  • Terminal device #2 can process the received signal to obtain the sensing result.
  • terminal device #2 can perform signal processing at a processing node.
  • the processing node can be located inside or outside terminal device #2; for example, it can be in a network device or a core network device.
  • network device #1 can act as a transmitter, network device #2 as a receiver, and network device #3 as a controller.
  • Network device #3 can send information to network devices #1 and #2 to control the sensing process, as indicated by the dotted line arrows.
  • the signal sent by network device #1 after being reflected by the sensing target, can be received by network device #2.
  • Network device #2 can process the received signal to obtain the sensing result.
  • network device #2 can perform signal processing at a processing node.
  • the processing node can be inside or outside network device #2; for example, it can be in network device #1, network device #3, or core network equipment.
  • the network device can act as a transmitter, receiver, and controller.
  • the signal transmitted by the network device can be received by the network device after being reflected by the sensing target.
  • the network device can process the received signal to obtain the sensing result.
  • the network device can perform signal processing at a processing node.
  • the processing node can be inside or outside the network device; for example, it can be in a core network device or other equipment.
  • the terminal device can act as a transmitter, receiver, and controller.
  • the signal transmitted by the terminal device, after being reflected by the sensing target, can be received by the terminal device.
  • the terminal device can process the received signal to obtain the sensing result.
  • the terminal device can perform signal processing at a processing node.
  • the processing node can be inside or outside the terminal device; for example, it can be in a network device or a core network device.
  • Sensing performance can include ranging resolution, among other things. Ranging resolution is related to signal bandwidth. A larger bandwidth results in lower distance resolution and better ranging performance.
  • Figure 3 is a schematic diagram of sensing ranging. The following example uses sensing ranging to illustrate how distance resolution is calculated.
  • Sensing ranging can measure the distance from the transmitting device to the sensing target and then to the receiving device via wireless signals. Depending on whether the receiving device and the transmitting device are in the same location, sensing ranging can be divided into two modes: bistatic and monostatic, as shown in Figure 3(a) and Figure 3(b), respectively.
  • bistatic ranging mode in bistatic ranging mode, the transmitting and receiving devices are not in the same location.
  • the distance resolution corresponding to bistatic ranging is c/B, where c represents the speed of light in vacuum and B represents the bandwidth of the signal.
  • the transmitting and receiving devices are located in the same position, represented by the transmitting/receiving device in Figure 3(b).
  • the distance measured in single-base ranging mode is d.
  • the distance resolution corresponding to single-base ranging is c/2B, where c represents the speed of light in vacuum and B represents the bandwidth of the signal.
  • sensing performance can also include ranging sidelobe performance.
  • Ranging sidelobe performance can be characterized by parameters such as the peak-to-side lobe ratio (PSLR).
  • PSLR is the ratio of the peak intensity of the main lobe of the sensed signal to the peak intensity of the sidelobe with the largest peak intensity in that sensed signal.
  • a larger PSLR indicates a greater difference between the peak intensity of the main lobe and the peak intensity of the sidelobe.
  • a larger PSLR means that the main lobe of the sensed signal for a single target is less likely to be confused by the sidelobes of the sensed signals of neighboring targets, thus enabling better differentiation between different targets and resulting in better ranging sidelobe performance.
  • the spectrum resources used by operators for communication are almost always discontinuous. That is, the entire spectrum resource is divided into multiple contiguous parts in the frequency domain, and each contiguous part in the frequency domain can be called an available frequency band. These available frequency bands may not be contiguous.
  • the identifier for an available frequency band can be a band number, such as n3 and n5.
  • CA carrier aggregation
  • CCs consecutive or non-consecutive carriers
  • Two consecutive CCs refer to two CCs that are consecutive in the frequency domain; two non-consecutive CCs can refer to two CCs that are not consecutive in the frequency domain, or in other words, two CCs that have a gap in the frequency domain.
  • An available frequency band can include one or more CCs.
  • CA Cold Coordination
  • CA can aggregate multiple CCs into a larger bandwidth.
  • CA is primarily designed to improve communication throughput
  • directly applying it to sensing presents some challenges.
  • multiple CCs can increase throughput, and the frequency spacing between these CCs has little impact on CA performance.
  • the spacing between CCs affects sensing performance. For instance, a larger spacing between CCs improves ranging resolution, but degrades ranging sidelobe performance. Excessively large frequency spacing may even prevent multiple CCs from coherently combining.
  • Figure 4 is a schematic diagram of a multi-band allocation provided in an embodiment of this application.
  • the solid arrows pointing to the right represent frequencies, and the further to the right the arrow points, the higher the frequency.
  • the various parts in Figure 4 show four frequency bands, namely frequency band 1, frequency band 2, frequency band 3, and frequency band 4.
  • the four frequency bands shown in Figure 4 can belong to one of the multiple available frequency bands divided from the entire spectrum resource, or they can belong to different available frequency bands.
  • frequency bands 1 to 4 can all belong to the available frequency band with frequency band number n3.
  • frequency band 1 can belong to the available frequency band with frequency band number n3, while frequency bands 2 to 4 can belong to the available frequency band with frequency band number n5.
  • Figure 5 is a schematic diagram of some ranging response functions provided in the embodiments of this application.
  • Figures (a) to (c) in Figure 5 are schematic diagrams of the ranging response functions (a) to (c) in Figure 4, respectively.
  • Example 1 see Figure 4(a), where the interval between any two adjacent frequency bands in bands 1 through 4 is 0 MHz. See Figure 5(a), where PSLR can be the ordinate of a point at a distance of 1.072 meters (m), approximately -13.3 dB.
  • the ranging resolution performance of Example 1, as a benchmark for other examples, is represented by solid lines in Figures 5(b) and (c).
  • Example 2 see Figure 4(b), where the gap B between two adjacent frequency bands in bands 1 to 4 is 20 MHz. See Figure 5(b), where PSLR can be the ordinate of a point at a distance of 2.332, approximately -12.5 dB. Compared to Example 1, the PSLR of Example 2 decreases by approximately 0.8 dB. Therefore, the ranging sidelobe performance of Example 2 is reduced relative to Example 1.
  • the ranging response function of Example 1 is represented by a solid line
  • the ranging response function of Example 2 is represented by a dashed line. It can be seen that the ranging resolution performance of Example 2 is 1.2 times that of Example 1. Therefore, the ranging resolution performance of Example 2 is improved relative to Example 1.
  • Example 3 see Figure 4(c), where the gap B between two adjacent frequency bands in bands 1 to 4 is 50 MHz. See Figure 5(c), where PSLR can be the ordinate of a point at a distance of 1.925, approximately -7.2 dB. Compared to Example 1, the PSLR of Example 3 decreases by approximately 5 dB. Therefore, the ranging sidelobe performance of Example 3 further deteriorates compared to Example 1.
  • the ranging response function of Example 1 is represented by a solid line
  • the ranging response function of Example 3 is represented by a dashed line. It can be seen that the ranging resolution performance of Example 3 is 1.5 times that of Example 1. Therefore, the ranging resolution performance of Example 3 is further improved compared to Examples 1 and 2.
  • sensing devices need to balance ranging resolution performance and ranging sidelobe performance to meet requirements. Therefore, in wireless sensing scenarios, how to support sensing devices to effectively use multiple frequency bands for sensing is an urgent problem to be solved.
  • Figure 6 is a schematic flowchart of a sensing resource indication method 600 provided in an embodiment of this application.
  • the multiple frequency bands indicated to the sensing device can meet certain conditions, such that the sensing signals corresponding to these frequency bands can balance the ranging resolution performance and the ranging sidelobe performance, thereby supporting the sensing device to use multiple frequency bands for effective sensing.
  • the dashed lines in Figure 6 represent optional operations in method 600. Method 600 will be described below with reference to Figure 6.
  • the first device determines N frequency bands.
  • the first device can be a control terminal for sensing (or a control node or control device, etc.).
  • the first device can also be a transmitter of the sensing signal (or a transmitting node or transmitting device, etc.), thus enabling the first device to transmit the sensing signal.
  • the first device can also be a receiver of the sensing signal (or a receiving node or receiving device, etc.), thus enabling the first device to receive the sensing signal.
  • the first device is neither a transmitter nor a receiver of the sensing signal. In this case, the first device can be considered a third-party device other than a transmitter or receiver.
  • the first device may be a terminal device or a network device.
  • the first device defines multiple frequency bands.
  • the N frequency bands may include N frequency bands with equal bandwidth, but this application is not limited to this.
  • Two frequency bands among the N frequency bands may also have different bandwidths.
  • the following example uses N frequency bands with equal bandwidth. However, those skilled in the art will understand that this application is equally applicable to N frequency bands with not exactly equal bandwidth.
  • one of the N frequency bands includes at least one CC.
  • the first frequency band includes at least one CC.
  • one of the N frequency bands includes multiple CCs. These CCs may be consecutive or non-consecutive.
  • one of the N frequency bands is a single CC.
  • the N frequency bands each contain N CCs.
  • N frequency bands can be used for sensing.
  • N frequency bands can be used to sense multiple targets.
  • one target corresponds to one physical entity.
  • a target could be a truck or a basketball.
  • Assigning one target to one physical entity makes the sensing and ranging process easier to implement.
  • one target corresponds to one range resolution unit.
  • a large physical entity, such as a truck, can correspond to multiple range resolution units.
  • These range resolution units can be spatially continuous. Assigning one target to one range resolution unit allows for more refined analysis of the sensed signals, thereby improving the accuracy of the sensing results.
  • sensing multiple targets can include measuring the distance to each target separately. By measuring the distance to each target separately, information such as the distance, velocity, angle, or intensity of the targets can be obtained.
  • the N frequency bands are used to transmit or receive the first sensing signal.
  • the first device can transmit or receive the first sensing signal on N frequency bands.
  • the second device can transmit or receive the first sensing signal on N frequency bands.
  • the first sensing signal can be used for sensing, for example, it can be used to sense multiple targets. This application does not limit the specific form of the first sensing signal.
  • the first sensing signal can be a reference signal, etc.
  • This application does not limit the specific name of the first sensing signal; the first sensing signal can also be called a signal or other names.
  • N frequency bands can belong to the same available frequency band.
  • N frequency bands can belong to the available frequency band with frequency band number n40, where n40 can be defined in technical specification (TS) 38.101.
  • TS technical specification
  • this application does not limit this; N frequency bands can also belong to different available frequency bands.
  • one of the N frequency bands can belong to the available frequency band with frequency band number n40, and another of the N frequency bands can belong to the available frequency band with frequency band number n48.
  • N frequency bands can also belong to newly defined available frequency bands, such as those defined by the standards of future communication systems.
  • the N frequency bands may also be called sensing bands or other names.
  • the ratio between the bandwidth of the first frequency band and the first interval in the N frequency bands is the first ratio value.
  • the first frequency band can be any one of the N frequency bands.
  • the first interval can be the interval between the maximum frequency of the second frequency band and the minimum frequency of the third frequency band.
  • the second and third frequency bands can be any two adjacent frequency bands among the N frequency bands.
  • frequency band 1 and frequency band 2 can be two adjacent frequency bands.
  • Frequency band 2 and frequency band 3 can be two adjacent frequency bands.
  • two adjacent frequency bands does not imply whether there is a gap between these two frequency bands.
  • adjacent means that there are no other frequency bands among the N frequency bands between these two frequency bands.
  • the maximum frequency of the second frequency band is less than the minimum frequency of the third frequency band.
  • the second frequency band can be frequency band 1 in Figure 4
  • the third frequency band can be frequency band 2 in Figure 4.
  • the first gap can be the gap between the maximum frequency of frequency band 1 and the minimum frequency of frequency band 2 in Figure 4, that is, the part marked B gap in Figure 4.
  • the first frequency band can be: the second frequency band, or the third frequency band, or a frequency band other than the second and third frequency bands among N frequency bands.
  • the first frequency band can be any one of frequency bands 1 to 4.
  • the first ratio satisfies a first condition.
  • S610 includes: determining N frequency bands based on the first condition.
  • the first ratio can be replaced by a third ratio.
  • the third ratio satisfies the first condition.
  • the third ratio is the ratio between the first interval and the bandwidth of the first frequency band among the N frequency bands.
  • the first and third ratios are reciprocals of each other; therefore, those skilled in the art will understand that in this embodiment, when the first ratio is replaced by the third ratio, the corresponding content in the first condition can be taken as its reciprocal.
  • the first condition is related to the first parameter.
  • the first parameter can be used to indicate the desired ranging sidelobe performance of the first sensing signal, or it can be used to indicate a threshold for the ranging sidelobe performance of the first sensing signal. The larger the threshold for the ranging sidelobe performance of the first sensing signal, the worse the desired ranging sidelobe performance of the first sensing signal. Conversely, the smaller the threshold for the ranging sidelobe performance of the first sensing signal, the better the desired ranging sidelobe performance of the first sensing signal.
  • the first parameter can be in the form of PSLR.
  • the first condition includes: the PSLR of the first sensing signal is less than or equal to the first parameter.
  • the first condition includes: the PSLR of the first sensing signal is less than or equal to -8 dB.
  • the first parameter can also be in other forms, which are not limited in this application. This application does not limit the specific name of the first parameter; for example, the first parameter can also be called sidelobe level, threshold, performance threshold, performance expectation, or other names.
  • the first parameter is pre-configured or pre-defined, or determined by the first device.
  • the first parameter is indicated to the first device by other devices via signaling.
  • the first interval satisfies the first condition.
  • the bandwidth of each frequency band in the N frequency bands can be pre-configured or pre-defined. In this way, it is only necessary to constrain the first interval to satisfy the first condition.
  • This application does not exclude the possibility of determining N frequency bands based on the first condition and other conditions. That is, the N frequency bands may satisfy other conditions besides the first condition. Furthermore, the embodiments of this application do not limit the name of the first condition; it may also be called an interval condition, a ratio condition, or other names. Further descriptions of the first condition are provided below and will not be repeated here.
  • determining the N frequency bands includes both determining the bandwidth and spacing of the N frequency bands, and determining the positions of the N frequency bands in the frequency domain.
  • the position of the first frequency band in the frequency domain can be represented by its start frequency and/or end frequency, such as 3.55 GHz, 3.65 GHz, or 3.55 GHz to 3.65 GHz; it can also be represented by the center frequency of the first frequency band, such as 3.6 GHz.
  • the first device sends first information to the second device.
  • the second device receives the first information from the first device.
  • the second device can be the controlled side of the sensing (or referred to as the controlled device or controlled node).
  • the second device can also be the transmitter of the sensing signal.
  • the second device can also be the receiver of the sensing signal.
  • the second device can be called a sensing device or other names, which are not limited in this application.
  • the first information may be carried in downlink control information (DCI), uplink control information (UCI), RRC message, or medium access control (MAC) control element (CE), but this application is not limited to this, and the first information may also be carried in other messages.
  • DCI downlink control information
  • UCI uplink control information
  • RRC message RRC message
  • MAC medium access control control control element
  • This application does not limit the name of the first information, which may also be called indication information, frequency band indication information, frequency configuration information, or have other names.
  • the first information is used to indicate the N frequency bands.
  • the first information may include the indexes of the N frequency bands, thereby indicating N frequency bands.
  • the first information may indicate the starting frequency of the N frequency bands, the bandwidth of each frequency band, the spacing between adjacent frequency bands, and the number of frequency bands (i.e., N), thereby indicating N frequency bands.
  • method 600 further includes: the second device determining N frequency bands based on the first information.
  • the N frequency bands may be pre-configured or predefined.
  • the second device may pre-configure N frequency bands at the factory.
  • the standard may predefine N frequency bands.
  • method 600 may not include S610 and S620.
  • S610 may be replaced by: the second device determining N frequency bands.
  • the second device sends or receives the first sensing signal according to the N frequency bands.
  • the above-described S630 can be replaced by: the second device sending or receiving the first sensing signal based on the first information.
  • the second device can send or receive the first sensing signal according to a frequency configuration.
  • Sending or receiving the first sensing signal can be understood as performing sensing. For example, sensing one or more targets.
  • S650 may include: the second device transmitting the first sensing signal to multiple targets respectively on N frequency bands.
  • the second device may transmit the first sensing signal to multiple targets respectively based on the first information.
  • S650 may include: the second device receiving sensing signals on N frequency bands. Alternatively, the second device may receive sensing signals based on the first information. The sensing signals received by the second device may be echo signals that have passed through multiple targets. In some possible implementations, S650 may include: the second device processing the received sensing signals to obtain a sensing result; or, the second device determining the sensing result based on the received sensing signals.
  • the aforementioned sensing result may be called a multi-band sensing result or have other names; this application does not limit the name of the sensing result.
  • the first device can indicate multiple frequency bands to the sensing device, which can be used to transmit or receive the first sensing signal.
  • the first ratio in the above scheme can indicate the interval between two adjacent frequency bands (referred to as "band interval"), for example, the aforementioned first interval.
  • the band interval has a certain impact on ranging resolution performance and ranging sidelobe performance. Assuming the bandwidth of the frequency bands remains constant, a larger band interval results in better ranging resolution performance of the first sensing signal, but lower ranging sidelobe performance; a smaller band interval results in lower ranging resolution performance of the first sensing signal, but better ranging sidelobe performance.
  • the band interval of the multiple frequency bands used for sensing satisfies certain conditions, and these conditions are related to parameters used to indicate the desired ranging sidelobe performance. Therefore, the first condition can balance ranging resolution performance and ranging sidelobe performance by constraining the band interval of these frequency bands. For example, although increasing the frequency band spacing can improve ranging resolution performance, in the embodiments of this application, due to the constraint of the first condition, the frequency band spacing will not be increased indefinitely. Instead, the frequency band spacing will be increased in a limited manner while ensuring that the actual ranging sidelobe performance of the first sensing signal meets the expected ranging sidelobe performance, thereby improving the ranging resolution performance while meeting the requirements of the expected ranging sidelobe performance.
  • the first condition includes: the better the expected ranging sidelobe performance of the first sensed signal, the larger the first ratio. In other words, the smaller the third ratio (i.e., the reciprocal of the first ratio).
  • the first condition includes: the lower the expected ranging sidelobe performance of the first sensed signal, the smaller the first ratio. In other words, the larger the third ratio (i.e., the reciprocal of the first ratio).
  • the first ratio indicates the first interval. Assuming the bandwidth of each of the N frequency bands remains constant, a larger first ratio results in a smaller first interval, meaning a smaller interval between two adjacent frequency bands. For example, as shown in Figure 4, a smaller interval between two adjacent frequency bands indicates better ranging sidelobe performance for the sensing signals corresponding to those bands. Therefore, when higher ranging sidelobe performance of the first sensing signal is required, the first ratio can be larger.
  • High desired ranging sidelobe performance can be understood as low desired PSLR. Conversely, low desired ranging sidelobe performance can be understood as high desired PSLR.
  • the desired ranging sidelobe performance of the first sensing signal is better than the desired ranging sidelobe performance of the second sensing signal, and the first ratio is greater than the second ratio.
  • the threshold of the ranging sidelobe performance of the first sensing signal is less than the ranging sidelobe performance of the second sensing signal, and the first ratio is greater than the second ratio.
  • the second sensing signal is transmitted or received on the M frequency bands
  • the ratio between the bandwidth of the fourth frequency band and the second interval in the M frequency bands is the second ratio value
  • M is an integer greater than 1
  • the second interval is the interval between the maximum frequency of the fifth frequency band and the minimum frequency of the sixth frequency band
  • the fifth frequency band and the sixth frequency band are any two adjacent frequency bands in the M frequency bands
  • the maximum frequency of the fifth frequency band is less than the minimum frequency of the sixth frequency band
  • the bandwidth of the fourth frequency band is equal to the bandwidth of the first frequency band
  • the fourth frequency band is: the fifth frequency band, or the sixth frequency band, or a frequency band in the M frequency bands other than the fifth frequency band and the sixth frequency band.
  • the M frequency bands include M frequency bands with equal bandwidth.
  • the bandwidths of the N frequency bands and the M frequency bands are all equal.
  • the description of the M frequency bands is similar to that of the N frequency bands, and can be found in the description of the N frequency bands above, so it will not be repeated here.
  • the fourth, fifth, and sixth frequency bands are similar to the first, second, and third frequency bands mentioned above, respectively, and can be found in the response descriptions above, so it will not be repeated here.
  • the frequency band spacing of the N frequency bands is less than the frequency band spacing of the M frequency bands. Therefore, better ranging sidelobe performance corresponds to a smaller frequency band spacing.
  • the N frequency bands can achieve the desired ranging sidelobe performance.
  • the first condition includes a first mapping relationship.
  • This first mapping relationship may include a mapping relationship between a first parameter and a first ratio.
  • the first parameter may be used to indicate the desired ranging sidelobe performance of the first sensing signal or a threshold for the ranging sidelobe performance of the first sensing signal.
  • the first parameter may include the reciprocal of k.
  • the first mapping relationship is selected from one or more rows of Table 1.
  • B gap represents the first interval
  • B represents the bandwidth of the first frequency band.
  • Table 1 shows... This can represent the first ratio.
  • k can be used to indicate the desired ranging sidelobe performance of the first sensing signal, or a threshold value for the ranging sidelobe performance of the first sensing signal. The smaller k is, the worse the ranging sidelobe performance of the first sensing signal. Conversely, the smaller the reciprocal of k, the better the ranging sidelobe performance of the first sensing signal.
  • k can indicate the minimum value of the expected ranging sidelobe performance of the first sensing signal (i.e., the maximum value of the threshold of the ranging sidelobe performance of the first sensing signal).
  • the k actually corresponding to the N frequency bands determined by the first device can be greater than or equal to the k in Table 1.
  • the k actually corresponding to the N frequency bands can be understood as the k corresponding to the ranging sidelobe performance of the first sensing signal transmitted or received on the N frequency bands.
  • the expected ranging sidelobe performance of the first sensing signal is near, or approximately equal to, k.
  • the k actually corresponding to the N frequency bands determined by the first device can be approximately equal to the k in Table 1.
  • the first parameter can also have other forms besides k, but this application does not limit this.
  • the values in Table 1 can vary within a certain error range.
  • 2.106 in Table 1 can vary within a range of 0.1.
  • 2.10 can cover values in the range of 2.006-2.206. That is, 2.106 in Table 1 can be replaced with any value in the range of 2.006-2.206.
  • the above is merely an example; the error range can also be larger or smaller than 0.1.
  • the values in the column corresponding to k in Table 1 can also vary within a certain error range; examples will not be repeated here. This application does not limit the form of the values in Table 1.
  • the values in Table 1 can be expressed as fractions or percentages.
  • the values in Table 1 can retain three or more decimal places.
  • the first mapping relationship may also include other rows besides Table 1, which is not limited in this application.
  • the first ratio satisfies a first condition; the first condition includes a first mapping relationship. Therefore, those skilled in the art will understand that the first ratio can satisfy the first mapping relationship.
  • the first ratio satisfying the first mapping relationship are described below.
  • the first mapping relationship will be referred to below as...
  • the threshold value is called the first ratio
  • the N frequency bands determined by the first device are... This is called the actual first ratio.
  • Example 1 The actual first ratio is equal to (or approximately equal to) the threshold of the first ratio. For example, when k is 0.678, the actual first ratio is equal to (or approximately equal to) 2.106.
  • Example 2 The actual first ratio is greater than or equal to a threshold value for the first ratio. For example, when k is 0.678, the actual first ratio is greater than or equal to 2.106.
  • the first ratio in the first mapping relationship can be replaced with a third ratio.
  • the third ratio can be expressed as: Accordingly, by taking the reciprocal of the value of the first ratio in Table 1, we can obtain the value of the third ratio.
  • the first condition can be determined by looking up a table.
  • the processing overhead required to determine the first condition by looking up a table is small, therefore the above embodiments can reduce the processing overhead of the first device.
  • the first condition includes Equation 1-1.
  • Formula 1-1 can be transformed into Formula 1-2.
  • Formula 1-1 can be understood as a formula for the first ratio
  • Formula 1-2 can be understood as a formula for the third ratio.
  • the parameters in Formulas 1-1 and 1-2 are described above and will not be repeated here.
  • mapping relationship between k and the first ratio can be obtained through formula 1-1 or formula 1-2, such as the first mapping relationship.
  • this application is not limited to this, and the first mapping relationship can also be obtained in other ways.
  • Table 1 is only an example of the mapping relationship that can be obtained by formula 1-1 or formula 1-2, and does not constitute a limitation of this application.
  • the first ratio satisfies a first condition; the first condition includes formula 1-1 and/or formula 1-2. Therefore, those skilled in the art will understand that the first ratio can satisfy formula 1-1 and/or formula 1-2. Some examples of the first ratio satisfying formula 1-1 and/or formula 1-2 are described below. For ease of description, the formulas in formula 1-1 and/or formula 1-2 will be referred to below.
  • the threshold value is called the first ratio, and the N frequency bands determined by the first device are... This is called the actual first ratio.
  • Example 1 The actual first ratio is equal to the threshold of the first ratio. For example, when k is 0.678, the actual first ratio is 2.106.
  • Example 2 The actual first ratio is greater than or equal to a threshold value for the first ratio. For example, when k is 0.678, the actual first ratio is greater than or equal to 2.106.
  • the first condition can be determined by a formula.
  • the formula requires less storage space to determine the first condition; therefore, the above embodiments can save storage space in the first device.
  • the first parameter may include PSLR.
  • the first mapping relationship is selected from one or more rows of Table 2.
  • PSLR represents the peak-to-sidelobe ratio
  • dB decibels.
  • the column containing k can be omitted in Table 2; that is, Table 2 can include only PSLR and...
  • the column containing k can also be retained in Table 2.
  • Table 2 It can indicate the first ratio.
  • the PSLR in Table 2 can be used to indicate the desired ranging sidelobe performance of the first sensing signal, or a threshold for the ranging sidelobe performance of the first sensing signal. Specifically, a larger PSLR in Table 2 indicates worse desired ranging sidelobe performance of the first sensing signal.
  • the PSLR in Table 2 can indicate the minimum expected ranging sidelobe performance of the first sensing signal.
  • the actual PSLR corresponding to the N frequency bands determined by the first device can be less than or equal to the PSLR in Table 2.
  • the actual PSLR corresponding to the N frequency bands can be understood as the PSLR corresponding to the ranging sidelobe performance of the first sensing signal transmitted or received on the N frequency bands.
  • the expected ranging sidelobe performance of the first sensed signal is near, or approximately equal to, the PSLR.
  • the actual PSLR corresponding to the N frequency bands determined by the first device may be approximately equal to the PSLR in Table 2.
  • the first parameter can also have other forms of representation besides PSLR, but this application does not limit this.
  • the values in Table 2 can vary within a certain error range.
  • 2.106 in Table 2 can vary within a range of 0.1.
  • 2.10 can cover values in the range of 2.006-2.206. That is, 2.106 in Table 2 can be replaced with any value in the range of 2.006-2.206.
  • the above is merely an example; the error range can also be larger or smaller than 0.1.
  • the values in the columns corresponding to PSLR and/or k in Table 2 can also vary within a certain error range; examples will not be repeated here.
  • This application does not limit the format of the values in Table 2.
  • the values in Table 2 can be expressed as fractions or percentages.
  • the values in Table 2 can retain three or more decimal places.
  • the first mapping relationship may also include other rows besides Table 2, which is not limited in this application.
  • the first ratio satisfies a first condition; the first condition includes a first mapping relationship. Therefore, those skilled in the art will understand that the first ratio can satisfy the first mapping relationship.
  • the first ratio satisfying the first mapping relationship are described below.
  • the first mapping relationship will be referred to below as...
  • the threshold value is called the first ratio
  • the N frequency bands determined by the first device are... This is called the actual first ratio.
  • Example 1 The actual first ratio is equal to (or approximately equal to) the threshold of the first ratio. For example, with a PSLR of -8dB, the actual first ratio is equal to (or approximately equal to) 2.106.
  • Example 2 The actual first ratio is greater than or equal to the threshold of the first ratio. For example, with a PSLR of -8dB, the actual first ratio is greater than or equal to 2.106.
  • the first ratio in the first mapping relationship can be replaced with a third ratio.
  • the third ratio can be expressed as: Accordingly, by taking the reciprocal of the value of the first ratio in Table 2, we can obtain the value of the third ratio.
  • the first condition includes formula 2-1 or formula 2-2.
  • B can be the bandwidth of the first frequency band.
  • M can represent the number of subcarriers in the first frequency band.
  • sinc() represents the Singer function.
  • the first frequency band may include a single carrier frequency (CC).
  • CC single carrier frequency
  • M can represent the number of subcarriers included in a CC.
  • ⁇ can represent the subcarrier spacing of that CC.
  • Equation 2-1 when M is large, Equation 2-1 can be transformed into Equation 2-2.
  • mapping relationship between PSLR and the first ratio can be obtained through formula 2-1 or formula 2-2, such as the first mapping relationship.
  • this application is not limited to this, and the first mapping relationship can also be obtained in other ways.
  • Table 2 is only an example of the mapping relationship that can be obtained by formula 2-1 or formula 2-2, and does not constitute a limitation of this application.
  • the first ratio satisfies a first condition; the first condition further includes formula 2-1 or formula 2-2. Therefore, those skilled in the art will understand that the first ratio, in addition to satisfying formula 1-1 and/or formula 1-2, may also satisfy formula 2-1 or formula 2-2. Some examples of the first ratio also satisfying formula 2-1 or formula 2-2 are described below. For ease of description, the formulas in formula 1-1 or formula 1-2 will be referred to below.
  • the threshold value is called the first ratio, and the N frequency bands determined by the first device are... This is called the actual first ratio.
  • Example 1 The actual first ratio is equal to the threshold of the first ratio. For example, with a PSLR of -8dB, the actual first ratio is 2.106.
  • Example 2 The actual first ratio is greater than or equal to the threshold of the first ratio. For example, with a PSLR of -8dB, the actual first ratio is greater than or equal to 2.106.
  • the first condition may include formulas 1-1 and 2-1. In other examples, the first condition may include formulas 1-2 and 2-1. In still other examples, the first condition may include formulas 1-1 and 2-2. In yet another set of examples, the first condition may include formulas 1-2 and 2-2.
  • the first condition can take the form of both a formula and a mapping relationship.
  • the first condition can include a first mapping relationship and formula 2-2 selected from one or more rows in Table 2, excluding the column containing k.
  • the first condition can be determined by a formula.
  • the formula requires less storage space to determine the first condition; therefore, the above embodiments can save storage space in the first device.
  • the first parameter may include ⁇ .
  • ⁇ is a parameter newly defined in this application embodiment.
  • ⁇ may represent the sidelobe level (SL) or the reference point sidelobe level (RPSL).
  • ⁇ may be PSLR.
  • the second parameter may be any value between -13.4dB and -13.3dB.
  • this application is not limited to this, and the second parameter may also be other values.
  • the first mapping relationship is selected from one or more rows of Table 3.
  • the column containing k can be omitted in Table 3; that is, Table 3 can include only ⁇ and ⁇ .
  • Table 3 can include only ⁇ and ⁇ .
  • the column containing k can also be retained in Table 3.
  • Table 3 It can indicate the first ratio.
  • ⁇ can be used to indicate the desired ranging sidelobe performance of the first sensing signal, or a threshold for the ranging sidelobe performance of the first sensing signal.
  • ⁇ in Table 3 can indicate the minimum expected ranging sidelobe performance of the first sensing signal.
  • the ⁇ actually corresponding to the N frequency bands determined by the first device can be less than or equal to the ⁇ in Table 3.
  • the ⁇ actually corresponding to the N frequency bands can be understood as the ⁇ corresponding to the ranging sidelobe performance of the first sensing signal transmitted or received on the N frequency bands.
  • the expected ranging sidelobe performance of the first sensing signal is near, or approximately equal to, ⁇ .
  • the ⁇ actually corresponding to the N frequency bands determined by the first device can be approximately equal to the ⁇ in Table 3.
  • the first parameter can also have other forms besides ⁇ , but this application does not limit this.
  • the values in Table 3 can vary within a certain error range.
  • 2.106 in Table 3 can vary within a range of 0.1.
  • 2.10 can cover values in the range of 2.006-2.206. That is, 2.106 in Table 3 can be replaced with any value in the range of 2.006-2.206.
  • the above is merely an example; the error range can also be larger or smaller than 0.1.
  • the values in the columns corresponding to ⁇ and/or k in Table 3 can also vary within a certain error range; examples will not be repeated here.
  • This application does not limit the form of the values in Table 3.
  • the values in Table 3 can be expressed as fractions or percentages.
  • the values in Table 3 can retain three or more decimal places.
  • the first mapping relationship may also include other rows besides Table 3, which is not limited in this application.
  • the first ratio satisfies a first condition; the first condition includes a first mapping relationship. Therefore, those skilled in the art will understand that the first ratio can satisfy the first mapping relationship.
  • the first ratio satisfying the first mapping relationship are described below.
  • the first mapping relationship will be referred to below as...
  • the threshold value is called the first ratio
  • the N frequency bands determined by the first device are... This is called the actual first ratio.
  • Example 1 The actual first ratio is equal to (or approximately equal to) the threshold of the first ratio. For example, with ⁇ of -8dB, the actual first ratio is equal to (or approximately equal to) 2.106.
  • Example 2 The actual first ratio is greater than or equal to the threshold of the first ratio. For example, when ⁇ is -8dB, the actual first ratio is greater than or equal to 2.106.
  • the first ratio in the first mapping relationship can be replaced with a third ratio.
  • the third ratio can be expressed as: Correspondingly, by taking the reciprocal of the value of the first ratio in Table 3, we can obtain the value of the third ratio.
  • the first condition can be determined by looking up a table.
  • the processing overhead required to determine the first condition by looking up a table is small, therefore the above embodiments can reduce the processing overhead of the first device.
  • the first condition includes formula 3-1 or formula 3-2.
  • Equation 3-1 can be transformed into Equation 3-2.
  • mapping relationship between ⁇ and the first ratio can be obtained through formula 3-1 or formula 3-2, for example, the first mapping relationship.
  • this application is not limited to this, and the first mapping relationship can also be obtained in other ways.
  • Table 3 is only an example of the mapping relationship that can be obtained by formula 3-1 or formula 3-2, and does not constitute a limitation of this application.
  • the first ratio satisfies a first condition; the first condition further includes formula 3-1 or formula 3-2. Therefore, those skilled in the art will understand that the first ratio, in addition to satisfying formula 1-1 and/or formula 1-2, can also satisfy formula 3-1 or formula 3-2. Below are some examples of the first ratio also satisfying formula 3-1 or formula 3-2. For ease of description, the formulas in formula 1-1 or formula 1-2 will be used below.
  • the threshold value is called the first ratio
  • the N frequency bands determined by the first device are... This is called the actual first ratio.
  • Example 1 The actual first ratio is equal to the threshold of the first ratio. For example, with ⁇ at -8dB, the actual first ratio is 2.106.
  • Example 2 The actual first ratio is greater than or equal to the threshold of the first ratio. For example, when ⁇ is -8dB, the actual first ratio is greater than or equal to 2.106.
  • the first condition may include formulas 1-1 and 3-1. In other examples, the first condition may include formulas 1-2 and 3-1. In still other examples, the first condition may include formulas 1-1 and 3-2. In yet another set of examples, the first condition may include formulas 1-2 and 3-2.
  • the first condition can take the form of both a formula and a mapping relationship.
  • the first condition can include a first mapping relationship and formula 3-2, which are selected from one or more rows in Table 3 but do not include the column containing k.
  • the first condition can be determined by a formula.
  • the formula requires less storage space to determine the first condition; therefore, the above embodiments can save storage space in the first device.
  • the first frequency band comprises P discrete subcarriers.
  • the first frequency band f can also be understood as a set of subcarriers.
  • f ⁇ f1 , f2 , ..., fm ⁇ .
  • p can be an integer derived from 1 and taken from P.
  • the ranging response function corresponding to the first frequency band can be expressed as Equation 4-1.
  • ⁇ can represent time delay
  • j can represent an imaginary number
  • AF( ⁇ ) can represent the response function obtained by ranging a single point target using P subcarriers in the first frequency band.
  • the bandwidth of the N frequency bands is the same, and the interval between any two adjacent frequency bands in the N frequency bands is the same.
  • the ranging response function corresponding to the N frequency bands can be expressed as Equation 4-2.
  • Equation 4-2 can be transformed into Equation 4-3.
  • Formula 4-3 can be understood as multiplying two factors to obtain AF′( ⁇ ).
  • embodiments of this application define two factors that satisfy Formula 4-4 and Formula 4-5 respectively.
  • Formula 4-3 can also satisfy Formula 4-6.
  • AF'( ⁇ ) AF1( ⁇ )*AF2( ⁇ ) (Formula 4-6)
  • Figure 7 is a schematic diagram of some frequency bands or frequencies provided in the embodiments of this application.
  • Figure 8 is a schematic diagram of some other ranging response functions provided in the embodiments of this application.
  • Figures (a) to (c) in Figure 8 show the ranging response functions corresponding to (a) to (c) in Figure 7, respectively.
  • the ranging response functions of N frequency bands will be analyzed below with reference to Figures 7 and 8.
  • Figure 7(a) shows a frequency band (assuming it's frequency band 1).
  • Figure 8(a) shows a schematic diagram of the ranging function response for a frequency band.
  • the x-coordinate of the first zero-crossing point of the response function is c/B.
  • kc/B can slide in the right half of the main lobe.
  • kc/B can slide between the first zero-crossing point and the origin with an amplitude of 0.
  • Figure 7(b) shows N frequencies. For example, taking one frequency from each of the N frequency bands yields N frequencies.
  • the N frequencies can be the center frequency, start frequency, or end frequency of the N frequency bands.
  • the distance between two adjacent frequencies in the N frequencies is B+B gap .
  • Figure 8(b) shows a schematic diagram of the ranging function response for N frequencies. As shown in Figure 8(b), in the graph of the ranging response function, the distance between two grating lobes is...
  • B gap can also be represented as B spacing .
  • Figure 7(c) shows N frequency bands.
  • Figure 8(c) shows a schematic diagram of the ranging response functions for N frequency bands.
  • the dashed line represents the ranging response function for N frequency bands, i.e., AF ′ ( ⁇ );
  • the solid line represents the ranging response function for one frequency band, i.e., AF1( ⁇ ), consistent with Figure 8(a);
  • the dotted-dash line represents the ranging response function for N frequencies, i.e., AF2( ⁇ ), consistent with Figure 8(b).
  • the position (i.e., the x-coordinate) of the reference point is defined as follows: This refers to the first grating lobe of the ranging response function of AF2( ⁇ ). After being weighted by AF1( ⁇ ), the amplitude (i.e., the ordinate) of this reference point is the one with the worst ranging sidelobe performance in AF ′ ( ⁇ ), meaning it has the highest sidelobe level.
  • the sidelobe level of this reference point can be called RPSL. Therefore, by controlling RPSL within a certain threshold, the ranging sidelobe performance of N frequency bands can be guaranteed.
  • an exemplary processing approach in this application embodiment is to constrain the first ratio so that while increasing the ranging resolution, the RPSL does not exceed a given threshold ⁇ .
  • Formula 4-7 can be understood as follows: when the vertical axis is ⁇ dB, the horizontal axis on the main lobe is...
  • the horizontal line between 0 and -10 dB can represent RPSL as ⁇ dB
  • the perpendicular line intersecting the horizontal line can represent the x-coordinate of the point where RPSL is ⁇ dB on the main lobe.
  • Figure 8(c) is only an example, and this application is not limited thereto; ⁇ dB can also be taken from values other than 0 to -10 dB.
  • Formula 4-8 can be obtained.
  • Equation 4-7 can be further simplified to obtain the aforementioned Equation 1-1 and/or Equation 1-2.
  • k is related to ⁇ .
  • k can be regarded as a function of ⁇ . Based on the expression of AF1( ⁇ ) and the function graph, we can obtain Formula 3-1 and/or Formula 3-2.
  • the first information includes the indices of the N frequency bands.
  • the index of N frequency bands can be understood as the index of each frequency band within the N frequency bands, or as the index of the set of N frequency bands.
  • the N frequency bands include band 1, band 2, and band 3.
  • the index of N frequency bands can include index 1, index 2, and index 3, where index 1 corresponds to band 1, index 2 corresponds to band 2, and index 3 corresponds to band 3.
  • index 1 is the index of band 1
  • index 2 is the index of band 2
  • index 3 is the index of band 3.
  • the index of N frequency bands can include index 4, which corresponds to band 1, band 2, and band 3; in other words, index 4 can be the index of band 1, band 2, and band 3; or, index 4 is the index of a set that includes band 1, band 2, and band 3.
  • S610 includes: the first device determining the indices of N frequency bands.
  • method 600 further includes: the second device determining the indices of the N frequency bands based on the first information.
  • method 600 further includes: the second device determining the N frequency bands based on the indices of the N frequency bands.
  • the index can also be replaced by number, identification, identity, or identifier, ID. This application does not limit the specific name of the index.
  • the first information can include indices of N frequency bands.
  • the second device can quickly determine the N frequency bands based on their indices, improving the efficiency of the second device in determining the N frequency bands.
  • the first information includes a first parameter.
  • the above solution can be replaced by: the first information including indication information of the first parameter.
  • the indication information can be direct indication information, for example, the first information includes the first parameter.
  • the indication information can also be indirect indication information, for example, the indication information of the first parameter is an identifier of the first parameter, so that the second device can determine the first parameter based on the identifier.
  • the first information may include at least one of the reciprocal of k, ⁇ , or PSLR.
  • the first information includes second indication information used to indicate the first parameter.
  • the second indication information may include at least one of k, ⁇ , or PSLR.
  • k may indicate the reciprocal of k, i.e., a representation of the first parameter.
  • S610 includes: the first device determining N subcarriers based on the first parameter.
  • method 600 further includes: the second device determining the first parameter based on the first information.
  • method 600 further includes: the second device determining N subcarriers based on the first parameter. For example, the second device can determine N subcarriers based on the first parameter and the first condition.
  • the N subcarriers can be uniquely determined by a first ratio (or a third ratio).
  • the first information can include only the first parameter.
  • the second device can then uniquely determine the N frequency bands based on this first parameter.
  • the N subcarriers cannot be uniquely determined by a first ratio (or a third ratio), other possibilities are excluded through signaling indications, predefined or pre-configured rules, making the N subcarriers uniquely determineable.
  • the first information can include only the first parameter.
  • the second device can uniquely determine the N frequency bands based on this first parameter and signaling (or predefined or pre-configured rules).
  • the first information may include a first parameter.
  • the receiving end of the first information can determine N subcarriers based on the first parameter.
  • the first information carries relatively little content, thereby reducing signaling overhead.
  • the first information further includes first indication information, which is used to indicate at least one of the starting frequency of the N frequency bands, N, or the bandwidth of the first frequency band.
  • the first indication information can be direct indication information.
  • the first indication information may include at least one of the starting frequencies of the N frequency bands, N, or the bandwidth of the first frequency band.
  • the first indication information can also be indirect indication information.
  • the second device can determine at least one of the starting frequencies of the N frequency bands, N, or the bandwidth of the first frequency band based on the first indication information.
  • the first indication information is used to indicate N, which can be understood as the first indication information being used to indicate the number of N frequency bands.
  • the starting frequency can be the minimum frequency of the lowest frequency band among N frequency bands.
  • the lowest frequency band can be understood as the frequency band with the lowest maximum frequency, the frequency band with the lowest center frequency, or the frequency band with the lowest minimum frequency.
  • the N frequency bands do not overlap; therefore, the above three descriptions can be considered equivalent.
  • the starting frequency can be the minimum frequency of frequency band 1, that is, the frequency corresponding to the leftmost point of frequency band 1 on the coordinate axis.
  • this application does not limit the definition of the starting frequency; the starting frequency can also be other positions.
  • the first indication information may indicate at least one of the starting frequency of the N frequency bands, N, or the bandwidth of the first frequency band.
  • the unindicated portions of the starting frequency of the N frequency bands, N, and the bandwidth of the first frequency band may be predefined or preconfigured, or may be indicated by other information.
  • the first information may include a first parameter and first indication information.
  • method 600 further includes: a second device determining N frequency bands based on the first parameter and the first indication information.
  • the second device may determine N frequency bands based on the first parameter, the first indication information, and a first condition.
  • the first indication information can indicate multiple signaling combinations, so that the receiving end of the first information can determine N frequency bands.
  • the first condition may be pre-configured or predefined.
  • the first condition may be indicated by signaling.
  • the first device may send second information to the second device. This second information may be used to indicate the first condition.
  • the method 600 further includes: S640, the first device transmits or receives the first sensing signal according to the N frequency bands.
  • the first device can be not only the control end of sensing, but also the sending end or receiving end of sensing signals.
  • control end the transmitting end, and the receiving end, with examples.
  • Figure 9 is a schematic flowchart of another sensing resource indication method 700 provided in an embodiment of this application.
  • Method 700 can be combined with method 600.
  • the dashed lines represent optional operations in method 700.
  • the first device is a control device.
  • Method 700 takes the second device as a transmitting device and the third device as a receiving device as an example. It should be noted that for the embodiment where the second device is a receiving device and the third device is a transmitting device, it is only necessary to interchange the second device and the third device in method 700, and the specific details will not be elaborated further.
  • the first device sends a first query message to the second device.
  • the second device receives the first query message from the first device.
  • the first query information is used to query whether multi-band sensing functionality is supported.
  • Multi-band sensing functionality can be the ability to sense multiple frequency bands.
  • the first query information is used to query (or request) the frequency points and bandwidth supported by the second device.
  • This application does not limit the specific name of the first query information, which may also be called request information or have other names.
  • the first device receives first feedback information from the second device.
  • the second device sends the first feedback information back to the first device.
  • the first feedback information is used to indicate that the second device supports multi-band sensing functionality.
  • the first feedback information is used to indicate the frequency points and bandwidth supported by the second device.
  • This application does not limit the specific name of the first feedback information, which may also be called response information or have other names.
  • S710 may be executed in response to S705, but this application is not limited to this; S710 may also be executed independently of S705.
  • the second device may periodically send first feedback information to the first device.
  • the first device sends a second query message to the third device.
  • the third device receives the second query message from the first device.
  • the second query information is used to query whether multi-band sensing functionality is supported.
  • the second query information is used to query (or request) the frequency points and bandwidth supported by the third device.
  • This application does not limit the specific name of the second query information, which may also be called request information or have other names.
  • the first device receives second feedback information from the third device.
  • the third device sends the second feedback information back to the first device.
  • the second feedback information is used to indicate that the third device supports multi-band sensing functionality.
  • the second feedback information is used to indicate the frequency points and bandwidth supported by the third device.
  • S720 may be executed in response to S715, but this application is not limited to this; S720 may also be executed independently of S715.
  • the third device may periodically send second feedback information to the first device.
  • this application does not limit the execution order of S705, S710, S715, and S720.
  • method 700 also includes S610.
  • method 700 further includes S620.
  • method 700 further includes: (S740) the first device sends first information to the third device.
  • the third device receives the first information from the first device.
  • the first information please refer to the foregoing description of the first information, for example, see S620, which will not be repeated here.
  • method 700 further includes S630.
  • S630 may include: the second device transmitting a first sensing signal to one or more targets on N frequency bands.
  • the third device receives the echo signals of the first sensing signal on N frequency bands.
  • the first sensing signal can be an echo signal that has passed through multiple targets. That is to say, combining the schemes of S630 and S750, it can be understood that the second device sends the first sensing signal to the third device, and the first sensing signal passes through multiple targets to form an echo signal. This echo signal is then directed towards the third device.
  • the third device determines the sensing result based on the echo signal of the received first sensing signal.
  • the third device sends information indicating the sensing result to the first device.
  • the first device receives information indicating the sensing result from the third device.
  • the information indicating the sensing result can be direct information, that is, the information indicating the sensing result contains the information of the sensing result; or, the information indicating the sensing result can be indirect information, and the first device can determine the information of the sensing result based on the information indicating the sensing result.
  • Figure 10 is a schematic flowchart of another resource sensing indication method 800 provided in an embodiment of this application.
  • Method 800 can be combined with method 600 or method 700.
  • the first device is a control device and a transmitting device
  • the second device is a receiving device.
  • the dashed lines represent optional operations in method 800.
  • method 800 may include S705, S710, S610 and S620.
  • method 800 also includes S630 and S640.
  • S640 includes: the first device transmitting a first sensing signal to one or more targets on N frequency bands.
  • S630 may include: the second device receiving echo signals of the first sensing signal on N frequency bands.
  • S640 includes: the first device transmitting a third sensing signal to one or more targets on N frequency bands.
  • S630 may include: the second device receiving echo signals of the third sensing signal on N frequency bands.
  • the echo signal of the third sensing signal is the first sensing signal.
  • the second device determines the sensing result based on the received sensing signal. For example, the second device determines the sensing result based on the echo signal of the received first sensing signal (or, the echo signal of the third sensing signal, i.e., the first sensing signal).
  • the second device sends information indicating the sensing result to the first device.
  • the first device receives information indicating the sensing result from the second device.
  • the information indicating the sensing result can be direct information, that is, the information indicating the sensing result contains the information of the sensing result; or, the information indicating the sensing result can be indirect information, and the first device can determine the information of the sensing result based on the information indicating the sensing result.
  • Figure 11 is a schematic flowchart of another sensing resource indication method 900 provided in an embodiment of this application.
  • Method 900 can be combined with method 600 or method 700.
  • the first device is a control device and a receiving device
  • the second device is a transmitting device.
  • the dashed lines represent optional operations in method 900.
  • method 900 may include S705, S710, S610 and S620.
  • method 900 also includes S630 and S640.
  • S630 includes: the second device transmitting a first sensing signal to one or more targets on N frequency bands.
  • S640 includes: the first device receiving echo signals of the first sensing signal on N frequency bands.
  • S630 includes: the second device transmitting a third sensing signal to one or more targets on N frequency bands.
  • S640 includes: the first device receiving echo signals of the third sensing signal on N frequency bands. The echo signals of the third sensing signal are the first sensing signal.
  • the first device determines the sensing result based on the received sensing signal. For example, the first device determines the sensing result based on the echo signal of the received first sensing signal (or, the echo signal of the third sensing signal, i.e., the first sensing signal).
  • the first ratio is the integer obtained after rounding.
  • Rounding can include rounding up, rounding down, or rounding around. This application specifies the specific form of rounding.
  • the first ratio cannot be flexibly adjusted.
  • frequency domain resources may be divided into multiple discrete frequency bands (e.g., CC).
  • the first device can only select N frequency bands from these discrete frequency bands.
  • the N frequency bands determined by the first device based on the first ratio must belong to the aforementioned multiple discrete frequency bands.
  • any first ratio may not necessarily correspond to N frequency bands, while a first ratio that meets certain conditions can correspond to N frequency bands.
  • the first ratio can be compared with that in Table 1, Table 2, Table 3, Formula 1-1, or Formula 1-2. As close as possible. For example, refer to Table 1, Table 2, Table 3, Formula 1-1, or Formula 1-2. Rounding down gives us the first ratio.
  • Figure 12 is a schematic diagram of some frequency bands provided in the embodiments of this application.
  • a given bandwidth BT can be discretely divided into Q frequency bands (e.g., CC), where Q can be an integer greater than 1.
  • Q can be an integer greater than 1.
  • the bandwidth of each frequency band is BT .
  • the bandwidths of the Q frequency bands satisfy: Q * BT ⁇ BT .
  • the parameter k can be calculated using Equation 3-1 or Equation 3-2 (or Equation 2-1 or Equation 2-2), and then determined according to Equation 1-1 or Equation 1-2.
  • the parameter ⁇ or PSLR
  • it can be determined using Table 3 (or Table 2). Based on this, the frequency bands shown in Figure 12 can be selected to best meet the above-mentioned requirements. N frequency bands.
  • the parameter k is 0.678.
  • the value is 2.106.
  • the value can be found as follows: The value is 2.106.
  • the parameter k is 0.814.
  • the value is 4.376.
  • the value can be found as follows: The ratio is 4.376.
  • the first ratio can be an integer obtained according to the first condition.
  • the N frequency bands corresponding to the first ratio are applicable to discretely distributed frequency bands within a given bandwidth, thereby improving the applicability of the scheme.
  • the first ratio can be an integer.
  • the first ratio can be from Table 4, Table 5, Table 6, Formula 1-3, or Formula 1-4.
  • Tables 1 to 3 above can be replaced with Tables 4 to 6 respectively.
  • formulas 1-1 and 1-2 can be replaced by formulas 1-3 and 1-4, respectively.
  • the N frequency bands include a seventh frequency band and an eighth frequency band, wherein the seventh frequency band is identical to at least one of the subcarrier spacing, cyclic prefix length, or frequency reference point of the eighth frequency band.
  • the seventh and eighth frequency bands may be different.
  • the seventh and eighth frequency bands may differ in at least one of the following: starting frequency, center frequency, or frequency range.
  • the seventh frequency band can be the first frequency band
  • the eighth frequency band can be any of the N frequency bands other than the first frequency band.
  • the eighth frequency band can be the first frequency band
  • the seventh frequency band can be any of the N frequency bands other than the first frequency band.
  • the seventh and eighth frequency bands can be adjacent or non-adjacent; this application does not limit this.
  • the subcarrier spacing can be the spacing between two adjacent subcarriers in a frequency band of N frequency bands.
  • the subcarrier spacing can be the subcarrier spacing of frequency domain resources in a frequency band of N frequency bands.
  • the subcarrier spacing of the seventh frequency band can be the same as that of the eighth frequency band. In other examples, the subcarrier spacing of the N frequency bands is the same. This application does not limit the specific name of the subcarrier spacing; the subcarrier spacing may have other names.
  • the cyclic prefix (CP) length also known as the CP configuration, can be the CP length of a frequency domain resource in one of N frequency bands.
  • the CP length can be indicated by a CP value.
  • the frequency reference point can also be called point A.
  • the frequency reference point indicates the absolute frequency of a reference resource block.
  • the smallest subcarrier of this reference resource block can also be called the frequency reference point (or point A).
  • N frequency bands can share a common frequency reference point.
  • N frequency bands can belong to the same sensing frequency layer (SFL).
  • SFL sensing frequency layer
  • N frequency bands can belong to the same resource set.
  • An SFL is a new concept proposed in this application.
  • An SFL may include one or more resource sets. Different resource sets may be configured with different bandwidths. However, this application does not limit this, and different resource sets may also be configured with the same bandwidth.
  • a resource set may include multiple resources.
  • N resources in a resource set may correspond one-to-one with N frequency bands.
  • the N resources in a resource set may each include N frequency bands.
  • N frequency bands belonging to the same resource set can be coherently combined.
  • this application is not limited in this respect; for example, the N frequency bands may belong to different resource sets.
  • N frequency bands can have the same subcarrier spacing, cyclic prefix length, or frequency reference point.
  • the parameter configuration is simple and easy to implement.
  • the communication device may include hardware structures and/or software modules, implementing the aforementioned functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular function is implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.
  • FIG. 13 is a schematic block diagram of a communication device 1000 according to an embodiment of this application.
  • the communication device 1000 includes a processor 1010 and a communication interface 1020.
  • the processor 1010 and the communication interface 1020 can be interconnected via a bus.
  • the communication device 1000 can be a first device or a second device.
  • the first device can be a terminal device or a network device; the second device can be a terminal device or a network device.
  • the communication device 1000 can also be referred to as a sensing device.
  • the communication device 1000 may further include a memory 1040.
  • the memory 1040 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), cache, erasable programmable read-only memory (EPROM), synchronous dynamic random access memory (SDRAM), hard disk drive (HDD), solid-state drive (SSD), or compact disc read-only memory (CD-ROM).
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable read-only memory
  • SDRAM synchronous dynamic random access memory
  • HDD hard disk drive
  • SSD solid-state drive
  • CD-ROM compact disc read-only memory
  • the memory 1040 is used to store related instructions and/or data.
  • the memory 1040 may be integrated with the processor 1010 or disposed separately.
  • the processor 1010 can be one or more central processing units (CPUs). If the processor 1010 is a CPU, it can be a single-core CPU or a multi-core CPU.
  • the processor 1010 can be a signal processor, a chip, or other integrated circuit capable of implementing the methods of this application, or a portion of the circuitry within the aforementioned processor, chip, or integrated circuit that performs processing functions.
  • the communication interface 1020 can be an input/output interface, used for inputting or outputting signals or data, or it can be an input/output circuit.
  • the communication device 1000 is a first device
  • the processor 1010 is configured to perform the following operations: determine N frequency bands, where N is an integer greater than 1, the ratio between the bandwidth of the first frequency band and the first interval in the N frequency bands is a first ratio value, the first interval is the interval between the maximum frequency of the second frequency band and the minimum frequency of the third frequency band, the second frequency band and the third frequency band are any two adjacent frequency bands in the N frequency bands, the maximum frequency of the second frequency band is less than the minimum frequency of the third frequency band, the first ratio value satisfies a first condition, and the first frequency band is: the second frequency band, or the third frequency band, or a frequency band in the N frequency bands other than the second frequency band and the third frequency band; send first information, the first information being used to indicate the N frequency bands, the N frequency bands being used to send or receive a first sensing signal, the first condition being related to a first parameter, the first parameter being used to indicate a threshold for the ranging sidelobe performance of the first sensing signal.
  • the communication device 1000 is a second device, and the processor 1010 is configured to perform the following operations: receive first information, which indicates N frequency bands, where N is an integer greater than 1, the ratio between the bandwidth of the first frequency band and the first interval in the N frequency bands is a first ratio value, the first interval is the interval between the maximum frequency of the second frequency band and the minimum frequency of the third frequency band, the second frequency band and the third frequency band are any two adjacent frequency bands in the N frequency bands, the maximum frequency of the second frequency band is less than the minimum frequency of the third frequency band, the first ratio value satisfies a first condition, and the first frequency band is: the second frequency band, or the third frequency band, or a frequency band in the N frequency bands other than the second frequency band and the third frequency band; according to the N frequency bands, transmit or receive a first sensing signal, the first condition being related to a first parameter, the first parameter being used to indicate a threshold for the ranging sidelobe performance of the first sensing signal.
  • N is an integer greater than 1
  • the communication device 1000 is responsible for executing the methods or steps related to the first or second device in the foregoing method embodiments.
  • the communication interface 1020 can be a transceiver.
  • the transceiver may include a transmitter and a receiver, with the transmitter performing a transmission operation and the receiver performing a reception operation.
  • the processor 1010 is used to control the transceiver to receive and/or transmit signals.
  • the communication interface 1020 can also be a communication circuit, pins, input/output interfaces, bus, etc.
  • the communication device 1000 may include a transmitter but not a receiver.
  • the communication device 1000 may include a receiver but not a transmitter. Specifically, it depends on whether the above-described scheme performed by the communication device 1000 includes both transmitting and receiving actions.
  • the communication device 1000 can be used to execute the scheme shown in Figures 6 to 12.
  • the communication device 1000 is the first device, and the communication interface 1020 can be used to send the first information.
  • the communication device 1000 is a second device, and the communication interface 1020 can be used to receive the first information.
  • Figure 14 is a schematic block diagram of another communication device 1100 according to an embodiment of this application.
  • the communication device 1100 can be a first device or a second device, or it can be a chip or module in the second device, used to implement the methods involved in the embodiments shown in Figures 6 to 12. Please refer to the relevant description in the above method embodiments for details.
  • the communication device 1100 can also be called a sensing device.
  • the communication device 1100 includes a transceiver unit 1110.
  • the transceiver unit 1110 will be described exemplarily below.
  • the transceiver unit 1110 may include a sending unit and a receiving unit.
  • the sending unit is used to perform the sending action of the communication device, and the receiving unit is used to perform the receiving action of the communication device.
  • the sending unit and the receiving unit are combined into one transceiver unit in this embodiment. This will be explained uniformly here and will not be repeated later.
  • the transceiver unit 1110 can implement the corresponding communication functions.
  • the transceiver unit 1110 may also be referred to as a communication interface or a communication module.
  • the communication device 1100 may include a transmitting unit but not a receiving unit.
  • the communication device 1100 may include a receiving unit but not a transmitting unit. Specifically, it depends on whether the above-described scheme executed by the communication device 1100 includes both transmitting and receiving actions.
  • the transceiver unit 1110 is used to send first information, etc.
  • the communication device 1100 may further include a processing unit 1120, which is used to perform the processing, coordination and other steps involved in the communication device 1100.
  • a processing unit 1120 which is used to perform the processing, coordination and other steps involved in the communication device 1100.
  • the transceiver unit 1110 is used to receive first information, etc.
  • the communication device 1100 may further include a processing unit 1120, which is used to perform the processing, coordination and other steps involved in the communication device 1100.
  • a processing unit 1120 which is used to perform the processing, coordination and other steps involved in the communication device 1100.
  • the above description is for illustrative purposes only.
  • the communication device 1100 will be responsible for executing the relevant methods or steps in the foregoing method embodiments.
  • the communication device 1100 further includes a storage unit 1130 for storing programs or code for executing the aforementioned methods.
  • the storage unit 1130 can store instructions and/or data
  • the processing unit 1120 can read the instructions and/or data from the storage unit 1130 to enable the communication device 1100 to implement the aforementioned method embodiments.
  • the communication device 1100 can be used to execute the schemes shown in Figures 6 to 12.
  • the processing unit 1120 can be used to determine N frequency bands; the transceiver unit 1110 can be used to send first information, which is used to indicate the N frequency bands.
  • the transceiver unit 1110 can be used to receive first information; the processing unit 1120 can be used to perform sensing based on the N frequency bands.
  • the communication interface 1020 can be a transceiver, input/output circuit, or communication interface of the chip.
  • the processor 1010 can be a processor integrated on the chip, a microprocessor, or an integrated circuit.
  • the transmitting operation of the first or second device in the above method embodiments can be understood as the output of the chip, and the receiving operation of the first or second device in the above method embodiments can be understood as the input of the chip.
  • the transceiver unit 1110 can be a transceiver, input/output circuit, or communication interface of the chip.
  • the processing unit 1120 can be a processor, microprocessor, or integrated circuit integrated on the chip.
  • This application also provides a chip, including a processor, for calling and executing instructions stored in a memory, causing a sensing device on which the chip is mounted to perform the methods described in the examples above.
  • This application also provides another chip, including: an input interface, an output interface, and a processor, wherein the input interface, the output interface, and the processor are connected via an internal connection path, and the processor is used to execute code in a memory.
  • the processor is used to perform the methods in the examples described above.
  • the chip further includes a memory for storing computer programs or code.
  • the memory may be located outside the chip.
  • This application also provides a processor for coupling with a memory, for performing methods and functions related to a sensing device or a communication device in any of the above embodiments, or for performing methods and functions related to a first device or a second device in any of the above embodiments.
  • a computer program product comprising a computer program or instructions is provided, wherein the method of the foregoing embodiments is implemented when the computer program product is run on a computer.
  • This application also provides a computer program that, when run on a computer, enables the implementation of the methods described in the foregoing embodiments.
  • a computer-readable storage medium which stores a computer program that, when executed by a computer, implements the methods described in the foregoing embodiments.
  • This application also provides a sensing system, which includes a first device and a second device.
  • the first device and the second device are respectively used to perform the methods performed by the first device and the second device in the foregoing embodiments.
  • the disclosed systems, apparatuses, and methods can be implemented in other ways.
  • 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.
  • multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
  • 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.
  • 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.
  • the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
  • 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.
  • 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, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

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Abstract

本申请提供了一种感知资源指示方法和装置，涉及感知技术领域。该方法包括：确定N个频段，N为大于1的整数，该N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，该第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，该第一比值满足第一条件；发送第一信息，该第一信息用于指示该N个频段，该N个频段用于发送或接收第一感知信号，该第一条件与第一参数相关，第一参数用于指示该第一感知信号的测距旁瓣性能的阈值。第一条件可以通过约束这些频段的频段间隔，平衡分辨性能测距分辨性能和旁瓣性能测距旁瓣性能，保证第一感知信号的实际的测距旁瓣性能满足期望的测距旁瓣性能的情况下，有限地增加频段间隔。

Description

感知资源指示方法和装置
本申请要求于2024年6月5日提交中国国家知识产权局、申请号为202410725433.7、申请名称为“感知资源指示方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及感知技术领域，并且更具体地，涉及一种感知资源指示方法和装置。
背景技术
无线感知技术通过分析无线信号在传播过程中的变化，可以获得信号传播空间(或者称为信道)的特性，以实现对场景的感知。这里的场景既可以包括生物的因素(例如，是否有生物以及生物的位置、姿态、动作等)，也可以包括其他非生物因素(例如，建筑物、移动的车辆等)。
然而，在无线感知场景中，如何支持感知装置使用多个频段进行有效的感知，是亟待解决的问题。
发明内容
本申请提供一种感知资源指示方法和装置。向感知装置指示的多个频段可以满足一定条件，使得这些频段对应的感知信号能够平衡测距分辨性能和测距旁瓣性能，从而支持感知装置使用多个频段进行有效感知。
第一方面，提供了一种感知资源指示方法。第一方面提供的方法的执行主体可以为第一装置。在不做特殊说明的情况下，本申请的中的第一装置既可以指第一装置本身(例如，网络设备、终端设备或者其他设备)，也可以是指第一装置中的组件(例如，处理器、芯片，或芯片系统等)，或者，也可以是能实现全部或者部分第一装置功能的逻辑模块或软件等。为便于描述，下文以第一装置为例进行描述。
该方法包括：确定N个频段，N为大于1的整数，该N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，该第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，该第二频段和该第三频段为该N个频段中任意两个相邻频段，该第二频段的最大频率小于该第三频段的最小频率，该第一比值满足第一条件，该第一频段为：该第二频段，或该第三频段，或该N个频段中除该第二频段和该第三频段之外的频段；发送第一信息，该第一信息用于指示该N个频段，该N个频段用于发送或接收第一感知信号，该第一条件与第一参数相关，第一参数用于指示该第一感知信号的测距旁瓣性能的阈值。
基于上述方案，第一装置可以向感知装置指示多个频段，这些频段可以用于发送或接收第一感知信号。上述方案中的第一比值可以指示多个频段中两个相邻频段的间隔(简称“频段间隔”)，例如，上述第一间隔。其中，频段间隔对测距分辨性能和测距旁瓣性能有一定的影响。假设频段的带宽不变，频段间隔越大，第一感知信号的测距分辨性能越好，但是测距旁瓣性能较低；频段间隔越小，第一感知信号的测距分辨性能越低，但是测距旁瓣性能越好。本申请实施例中，用于感知的多个频段的频段间隔满足一定条件，并且该条件与用于指示测距旁瓣性能的阈值(或者称为期望的测距旁瓣性能)的参数相关。因此，第一条件可以通过约束这些频段的频段间隔，平衡测距分辨性能和测距旁瓣性能。例如，虽然增加频段间隔可以提高测距分辨性能，但是在本申请实施例中，由于第一条件的约束，频段间隔不会无限增加，而是在保证第一感知信号的实际的测距旁瓣性能满足期望的测距旁瓣性能的情况下，有限地增加频段间隔，从而在满足期望的测距旁瓣性能的要求的情况下，提高测距分辨性能。
在一些实现方式中，该第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能的阈值，该第一比值大于第二比值；其中，该第二感知信号在该M个频段上被发送或接收，该M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，该第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，该第五频段和该第六频段为该M个频段中任意两个相邻频段，该第五频段的最大频率小于该第六频段的最小频率，该第四频段的带宽等于该第一频段的带宽，该第四频段为：该第五频段，或该第六频段，或该M个频段中除该第五频段和该第六频段之外的频段。
基于上述方案，假设频段的带宽不变，第一比值大于第二比值，则N个频段的频段间隔小于M个频段的频段间隔。因此，更好的测距旁瓣性能对应更小的频段间隔。这样，在N个频段满足第一条件的情况下，N个频段能够达到期望的测距旁瓣性能。
在一些实现方式中，该第一条件包括以下至少一项：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数为该第一参数。
通过上述实施例，第一条件可以通过查表确定。查表确定第一条件所需要的处理开销较小，因此上述实施例能够降低第一装置的处理开销。
在一些实现方式中，该第一条件包括：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数为该第一参数。
通过上述实施例，第一条件可以通过公式确定。公式确定第一条件所需要的存储空间较小，因此上述实施例能够节约第一装置的存储空间。
在一些实现方式中，该第一条件包括以下至少一项：
其中，PSLR表示峰值旁瓣比(peak sidelobe ratio，PSLR)，dB表示分贝，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数和PSLR为该第一参数。
通过上述实施例，第一条件可以通过查表确定。查表确定第一条件所需要的处理开销较小，因此上述实施例能够降低第一装置的处理开销。
在一些实现方式中，该第一条件包括：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数和PSLR为该第一参数，PSLR表示峰值旁瓣比，PSLR的参考点为c表示光速，M＝B/△，其中，△表示该第一频段的子载波间隔。
通过上述实施例，第一条件可以通过公式确定。公式确定第一条件所需要的存储空间较小，因此上述实施例能够节约第一装置的存储空间。
在一些实现方式中，该第一信息包括该N个频段的索引。
基于上述方案，第一信息可以包括N个频段的索引。这样，第二装置可以根据N个频段的索引快速确定N个频段，提高了第二装置确定N个频段的效率。
在一些实现方式中，该第一信息包括第一参数。
基于上述方案，第一信息可以包括第一参数。这样，第一信息的接收端可以根据第一参数确定N个子载波。上述方案中，第一信息携带的内容较少，从而能够减少信令开销。
在一些实现方式中，该第一信息还包括第一指示信息，该第一指示信息用于指示该N个频段的起始频率、N、或者该第一频段的带宽中的至少一项。
基于上述方案，第一指示信息可以指示多种信令组合，使得第一信息的接收端可以确定N个频段。
在一些实现方式中，该第一比值是取整后的整数。
基于上述方案，第一比值可以是根据第一条件得到的整数。这样，第一比值对应的N个频段适用于给定带宽中离散分布的频段，从而提高了方案的适用性。
在一些实现方式中，该N个频段包括第七频段和第八频段，该第七频段与该第八频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
基于上述方案，N个频段可以具有相同的子载波间隔、循环前缀长度或频率参考点，参数配置简单，便于实现。
在一些实现方式中，该N个频段是N个分量载波(component carrier，CC)。
在一些实现方式中，该方法还包括：根据该N个频段，发送或接收该第一感知信号。
第二方面，提供了一种感知方法。第二方面提供的方法的执行主体可以为第二装置。在不做特殊说明的情况下，本申请的中的第二装置既可以指第二装置本身(例如，网络设备、或者终端设备)，也可以是指第二装置中的组件(例如，处理器、芯片，或芯片系统等)，或者，也可以是能实现全部或者部分第二装置功能的逻辑模块或软件等。为便于描述，下文以第二装置为例进行描述。
该方法包括：接收第一信息，该第一信息用于指示N个频段，N为大于1的整数，该N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，该第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，该第二频段和该第三频段为该N个频段中任意两个相邻频段，该第二频段的最大频率小于该第三频段的最小频率，该第一比值满足第一条件，该第一频段为：该第二频段，或该第三频段，或该N个频段中除该第二频段和该第三频段之外的频段；根据该N个频段，发送或接收第一感知信号，该第一条件与第一参数相关，第一参数用于指示该第一感知信号的测距旁瓣性能的阈值。
在一些实现方式中，该第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能的阈值，该第一比值大于第二比值；其中，该第二感知信号在该M个频段上被发送或接收，该M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，该第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，该第五频段和该第六频段为该M个频段中任意两个相邻频段，该第五频段的最大频率小于该第六频段的最小频率，该第四频段的带宽等于该第一频段的带宽，该第四频段为：该第五频段，或该第六频段，或该M个频段中除该第五频段和该第六频段之外的频段。
在一些实现方式中，该第一条件包括以下至少一项：

其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数为该第一参数。
在一些实现方式中，该第一条件包括：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数为该第一参数。
在一些实现方式中，该第一条件包括以下至少一项：
其中，PSLR表示峰值旁瓣比，dB表示分贝，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数和PSLR为该第一参数。
在一些实现方式中，该第一条件包括：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数和PSLR为该第一参数，PSLR表示峰值旁瓣比，PSLR的参考点为c表示光速，M＝B/△，其中，△表示该第一频段的子载波间隔。
在一些实现方式中，该第一信息包括该N个频段的索引。
在一些实现方式中，该第一信息包括第一参数。
在一些实现方式中，该第一信息还包括第一指示信息，该第一指示信息用于指示该N个频段的起始频率、N、或者该第一频段的带宽中的至少一项。
在一些实现方式中，该第一比值是取整后的整数。
在一些实现方式中，该N个频段包括第一频段和第二频段，该第一频段与该第二频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
在一些实现方式中，该N个频段是N个CC。
第三方面，提供了一种感知装置，包括处理电路(或者处理器)和输入输出接口(也可以称为接口电路)，该输入输出接口用于输入和/或输出信号，该处理电路用于执行第一方面以及第一方面的任一种可能的方法，或者，该处理电路用于执行第二方面以及第二方面的任一种可能的方法。
在一些实现方式中，处理电路用于通过接口电路与其它装置通信，并执行上述第一方面以及第一方面的任一种可能的方法，或者执行第二方面以及第二方面的任一种可能的方法。
第四方面，提供了一种感知装置。该感知装置可以包括用于执行感知装置功能的设备或者模块等。
在一些实现方式中，该感知装置可以包括用于执行第一方面以及第一方面的任一种可能的实现方式所描述的方法/操作/步骤/动作所一一对应的模块或单元，该模块或单元可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。
在一些实现方式中，第一装置包括处理单元和收发单元。其中，处理单元可以用于确定N个频段，N为大于1的整数，该N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，该第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，该第二频段和该第三频段为该N个频段中任意两个相邻频段，该第二频段的最大频率小于该第三频段的最小频率，该第一比值满足第一条件，该第一频段为：该第二频段，或该第三频段，或该N个频段中除该第二频段和该第三频段之外的频段。收发单元可以用于发送第一信息，该第一信息用于指示该N个频段，该N个频段用于发送或接收第一感知信号，该第一条件与第一参数相关，第一参数用于指示该第一感知信号的测距旁瓣性能的阈值。
在一些实现方式中，该第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能的阈值，该第一比值大于第二比值；其中，该第二感知信号在该M个频段上被发送或接收，该M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，该第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，该第五频段和该第六频段为该M个频段中任意两个相邻频段，该第五频段的最大频率小于该第六频段的最小频率，该第四频段的带宽等于该第一频段的带宽，该第四频段为：该第五频段，或该第六频段，或该M个频段中除该第五频段和该第六频段之外的频段。
在一些实现方式中，该第一条件包括以下至少一项：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数为该第一参数。
在一些实现方式中，该第一条件包括：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数为该第一参数。
在一些实现方式中，该第一条件包括以下至少一项：
其中，PSLR表示峰值旁瓣比(peak sidelobe ratio，PSLR)，dB表示分贝，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数和PSLR为该第一参数。
在一些实现方式中，该第一条件包括：

其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数和PSLR为该第一参数，PSLR表示峰值旁瓣比，PSLR的参考点为c表示光速，M＝B/△，其中，△表示该第一频段的子载波间隔。
在一些实现方式中，该第一信息包括该N个频段的索引。
在一些实现方式中，该第一信息包括第一参数。
在一些实现方式中，该第一信息还包括第一指示信息，该第一指示信息用于指示该N个频段的起始频率、N、或者该第一频段的带宽中的至少一项。
在一些实现方式中，该第一比值是取整后的整数。
在一些实现方式中，该N个频段包括第七频段和第八频段，该第七频段与该第八频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
在一些实现方式中，该N个频段是N个CC。
在一些实现方式中，该方法还包括：根据该N个频段，发送或接收该第一感知信号。
在一些实现方式中，该感知装置可以包括用于执行第二方面以及第二方面的任一种可能的实现方式所描述的方法/操作/步骤/动作所一一对应的模块或单元，该模块或单元可以是硬件电路，也可是软件，也可以是硬件电路结合软件实现。
在一些实现方式中，第二装置包括收发单元。收发单元可以用于接收第一信息，该第一信息用于指示N个频段，N为大于1的整数，该N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，该第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，该第二频段和该第三频段为该N个频段中任意两个相邻频段，该第二频段的最大频率小于该第三频段的最小频率，该第一比值满足第一条件，该第一频段为：该第二频段，或该第三频段，或该N个频段中除该第二频段和该第三频段之外的频段；收发单元还可以用于根据该N个频段，发送或接收第一感知信号，该第一条件与第一参数相关，第一参数用于指示该第一感知信号的测距旁瓣性能的阈值。
在一些实现方式中，该第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能的阈值，该第一比值大于第二比值；其中，该第二感知信号在该M个频段上被发送或接收，该M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，该第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，该第五频段和该第六频段为该M个频段中任意两个相邻频段，该第五频段的最大频率小于该第六频段的最小频率，该第四频段的带宽等于该第一频段的带宽，该第四频段为：该第五频段，或该第六频段，或该M个频段中除该第五频段和该第六频段之外的频段。
在一些实现方式中，该第一条件包括以下至少一项：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数为该第一参数。
在一些实现方式中，该第一条件包括：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数为该第一参数。
在一些实现方式中，该第一条件包括以下至少一项：
其中，PSLR表示峰值旁瓣比，dB表示分贝，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数和PSLR为该第一参数。
在一些实现方式中，该第一条件包括：
其中，Bgap表示该第一间隔，B表示该第一频段的带宽，k的倒数和PSLR为该第一参数，PSLR表示峰值旁瓣比，PSLR的参考点为c表示光速，M＝B/△，其中，△表示该第一频段的子载波间隔。
在一些实现方式中，该第一信息包括该N个频段的索引。
在一些实现方式中，该第一信息包括第一参数。
在一些实现方式中，该第一信息还包括第一指示信息，该第一指示信息用于指示该N个频段的起始频率、N、或者该第一频段的带宽中的至少一项。
在一些实现方式中，该第一比值是取整后的整数。
在一些实现方式中，该N个频段包括第一频段和第二频段，该第一频段与该第二频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
在一些实现方式中，该N个频段是N个CC。
第五方面，提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序或指令，当该计算机程序或该指令被运行时，使得第一方面以及第一方面的任一种可能的方法被执行(或被实现)，或者，使得第二方面以及第二方面的任一种可能的方法被执行(或被实现)。
第六方面，提供了一种计算机程序产品，包含计算机程序或指令，当该计算机程序或指令被运行时，使得第一方面以及第一方面的任一种可能的方法被执行(或被实现)，或者，使得第二方面以及第二方面的任一种可能的方法被执行(或被实现)。
第七方面，提供一种感知装置，包括处理器，用于通过执行存储器中存储的计算机程序(或计算机可执行指令)，和/或，通过逻辑电路使得上述第一方面的任一种可能的方法被执行(或被实现)，或者，使得上述第二方面的任一种可能的方法被执行(或被实现)。
在一种可能的实现中，该装置还包括存储器。在一种可能的实现中，处理器和存储器集成在一起。在另一种可能的实现中，该存储器位于该感知装置之外。该处理器可以包括一个或多个。
在一种可能的实现中，该感知装置还包括通信接口，该通信接口用于该感知装置与其他设备进行信息传输，例如数据和/或信号的发送或接收。示例性的，通信接口可以是收发器、电路、总线、模块或其它类型的通信接口。
在一种实现方式中，上述第三方面、第四方面或第七方面的感知装置，可以是芯片或芯片系统。
第八方面，提供一种芯片，包括处理器，用于调用存储器中的计算机程序或计算机指令，以使得上述第一方面中的任一种实现方式被执行(或被实现)，或者，以使得上述第二方面中的任一种实现方式被执行(或被实现)。
在一种可能的实现中，该芯片还包括存储器。在一种可能的实现中，处理器和存储器集成在一起。在另一种可能的实现中，该存储器位于该芯片之外。该处理器可以包括一个或多个。
在一些实现方式中，该处理器通过接口与该存储器耦合。
第九方面，提供一种感知系统，包括第一装置和第二装置，第一装置用于执行上述第一方面以及第一方面的任一种可能的实现方式，第二装置用于执行上述第二方面以及第二方面的任一种可能的实现方式。
关于第二方面至第九方面等中任一方面的有益效果的描述可以参照第一方面的有益效果的描述。
附图说明
图1是一种通信系统的示意图。
图2是一些感知系统的示意性框图。
图3是感知测距的示意图。
图4是本申请实施例提供的一种多频段分配的示意图。
图5是本申请实施例提供的一些测距响应函数的示意图。
图6是本申请实施例提供的一种感知资源指示方法的示意性流程图。
图7是本申请实施例提供的一些频段或频率的示意图。
图8是本申请实施例提供的另一些测距响应函数的示意图。
图9是本申请实施例提供的另一种感知资源指示方法的示意性流程图。
图10是本申请实施例提供的又一种感知资源指示方法的示意性流程图。
图11是本申请实施例提供的再一种感知资源指示方法的示意性流程图。
图12是本申请实施例提供的一些频段的示意图。
图13是本申请实施例的一种通信装置的示意框图。
图14是本申请实施例的另一种通信装置的示意框图。
具体实施方式
在本申请中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
在本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。在本申请的文字描述中，字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a、b和c中的至少一项(个)，可以表示：a，或，b，或，c，或，a和b，或，a和c，或，b和c，或，a、b和c。其中a、b和c分别可以是单个，也可以是多个。
在本申请中，“第一”、“第二”以及各种数字编号(例如，#1、#2等)指示为了描述方便进行的区分，并不用来限制本申请实施例的范围。例如，区分不同的消息等，而不是用于描述特定的顺序或先后次序。应理解，这样描述的对象在适当情况下可以互换，以便能够描述本申请的实施例以外的方案。
在本申请中，“当……时”、“在……的情况下”以及“如果”等描述均指在某种客观情况下设备会做出相应的处理，并非是限定时间，且也不要求设备在实现时一定要有判断的动作，也不意味着存在其它限定。
在本申请中，“指示”或“用于指示”可以包括用于直接指示和用于间接指示。当描述某一指示信息用于指示A时，可以包括该指示信息直接指示A或间接指示A，而并不代表该指示信息中一定携带有A。
本申请实施例涉及的指示方式应理解为涵盖可以使得待指示方获知待指示信息的各种方法。待指示信息可以作为整体一起发送，也可以分成多个子信息分开发送，而且这些子信息的发送周期和/或发送时机可以相同，也可以不同，本申请对例如发送方法不作限定。
本申请实施例中的“指示信息”可以是显式指示，即通过信令直接指示，或者根据信令指示的参数，结合其他规则或结合其他参数或通过推导获得。也可以是隐式指示，即根据规则或关系，或根据其他参数，或推导获得。本申请对此不作具体限定。
在本申请中，“协议”可以是指通信领域的标准协议，例如可以包括5G协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不作限定。“预定义”可以包括预先定义。例如，协议定义。“预配置”可以通过在设备中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其实现方式不作限定。
在本申请中，“通信”还可以描述为“数据传输”、“信息传输”、“数据处理”等。“传输”包括“发送”和“接收”。示例性地，传输可以是上行传输，例如可以是终端设备向网络设备发送信号；传输也可以是下行传输，例如可以是网络设备向终端设备发送信号；传输也可以是侧行传输，例如可以是终端设备向另一终端设备发送信号。示例性地，“传输”可以是空口级的传输，也可以是芯片输入(input，I)/输出(output，O)口的信号发送，而非空口级的传输。
在本申请中，“消息”、“信息”、“信号”或“信息元素(information element，IE)”等可以替换使用，对于消息或信息的名称不做任何限定，能够实现相应功能即可。
“向XX(设备)发送信息”可以理解为该信息的目的端是该设备。可以包括直接或间接地向该设备发送信息。“从XX(设备)接收信息，或者接收来自XX(设备)的信息”可以理解为该信息的源端是该设备，可以包括直接或间接地从该设备接收信息。信息在信息发送的源端和目的端之间可能会被进行必要的处理，例如格式变化等，但目的端可以理解来自源端的有效信息。本申请中类似的表述可以做类似的理解，在此不再赘述。”另外，“发送”也可以理解为芯片接口的“输出”，“接收”也可以理解为芯片接口的“输入”。换言之，“发送”或“接收”可以是在设备之间进行的，例如，网络设备和终端设备之间通过空口分别进行发送或接收，“发送”或“接收”也可以是在设备内进行的，例如，通过总线、走线或接口在设备内的部件之间、模组之间、芯片之间、软件模块或者硬件模块之间发送或接收。
在本申请中，“示例性地”、“比如”等词语用于表示例子、例证或说明，以具体方式呈现概念。本申请中被描述为“示例”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。本申请实施例中，“的(of)”，“相应的(corresponding，relevant)”、“对应的(corresponding)”和“关联的(associate)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。
在本申请中，配置可以是信令配置，也可以描述为配置信令。例如，信令配置包括由基站发送的信令进行配置，这些信令可以是无线资源控制(radio resource control，RRC)消息，下行控制信息(downlink control information，DCI)，或系统信息块(system information block，SIB)。可选的，信令配置还可以是由预配置的信令配置给终端设备，或者，通过预配置的方式配置给终端设备。这里的预配置，是以协议的方式提前定义或配置相应参数的取值，在与终端设备通信之时存入终端设备中。预配置的消息，在终端设备连网的条件下可以修改或更新。
本申请将围绕可包括多个设备、组件、模块等的系统来呈现各个方面、实施例或特征。各个系统可以包括除图示设备、组件、模块外的设备、组件、模块等，并且/或者可以并不包括结合附图讨论的所有和全部设备、组件、模块等。
本申请实施例描述的业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
在本申请的各种实施例中，各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”“在一些实施例中”“在其他一些实施例中”“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”“包含”“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
本申请实施例的技术方案可以应用于各种通信系统，包括但不限于：长期演进(long term evolution，LTE)系统、新无线(new radio，NR)系统等第五代(5th generation，5G)移动通信系统、窄带物联网(narrow band internet of things，NB-IoT)系统、增强型机器类型通信(enhanced machine-type communication，eMTC)系统、增强移动宽带(enhanced mobile broadband，eMBB)系统、超高可靠性和低时延通信(ultra reliable low latency communications，URLLC)系统、卫星通信系统、LTE-机器到机器(LTE-machine-to-machine，LTE-M)系统、或者未来通信系统等5G之后演进的系统等。
下面将结合附图，对本申请中的技术方案进行描述。
图1是一种通信系统100的示意图。如图1所示，该通信系统100包括无线接入网110和核心网120，可选的，通信系统100还可以包括互联网130。其中，无线接入网110可以包括至少一个网络设备(如图1中的111a和111b)，还可以包括至少一个终端设备(如图1中的112a-112j)。终端设备通过无线的方式与网络设备相连。网络设备通过无线或有线方式与核心网120连接。核心网120可以包括一个或多个核心网设备。其中，核心网设备与网络设备可以是独立的不同的物理设备，也可以是将核心网设备的功能与网络设备的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分的网络设备的功能。终端设备和终端设备之间以及网络设备和网络设备之间可以通过有线或无线的方式相互连接。终端设备与终端设备、网络设备与网络设备、以及终端设备与网络设备之间可以通过空口资源进行无线通信。示例性地，空口资源可以包括时域资源、频域资源、码资源和空间资源中的至少一个。需要说明的是，图1只是示意图，该通信系统100中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图1中未画出。
网络设备可以是任意一种具有无线收发功能的设备，例如，网络设备可以为用于将终端设备接入无线接入网络(radio access network，RAN)的基站。网络设备有时也可称为接入网设备或接入网节点。可以理解的是，采用不同无线接入技术的系统中，具备网络设备功能的设备的名称可能会有所不同。为方便描述，本申请实施例将为终端设备提供无线通信接入功能的装置统称为基站。本申请实施例中，网络设备包括但不限于：各种形式的宏基站(如图1中的111a)、微基站或室内站(如图1中的111b)、微微基站、小站、气球站、中继站、接入点等。网络设备可以包括LTE中的演进型节点B(evolved node B，eNB或eNodeB)、无线保真(wireless fidelity，WiFi)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission reception point，TRP)等，还可以包括5G系统、或5.5G系统中的下代基站节点(next generation NodeB，gNB)或传输点(TRP或TP)、5G系统中的基站的一个或一组(包括多个天线面板)天线面板、构成gNB或传输点的网络节点，如基带单元(baseband unit，BBU)或分布式单元(distributed unit，DU)，还可以包括5G之后演进的网络中的网络设备、服务器或车载设备等。网络设备还可以是完成基站部分功能的模块或单元，例如，可以是集中式单元(central unit，CU)，也可以是DU。其中，AP可以包括WiFi 5、WiFi 6或者未来的WiFi AP。但是本申请不限定，例如，AP还可以包括超宽带(ultra wide band，UWB)AP。
本申请实施例中，用于实现网络设备的功能的装置可以是网络设备，也可以是能够支持网络设备实现该功能的装置，例如芯片系统，该装置可以被安装在网络设备中。芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
在另一种可能的场景中，由多个网络设备协作协助终端实现无线接入，不同网络设备分别实现基站的部分功能。例如，网络设备可以是CU，DU，CU-控制面(control plane，CP)，CU-用户面(user plane，UP)，或者无线单元(radio unit，RU)等。CU和DU可以是单独设置，或者也可以包括在同一个网元中，例如BBU中。RU可以包括在射频设备或者射频单元中，例如包括在RRU、有源天线处理单元(active antenna unit，AAU)或远程射频头(remote radio head，RRH)中。
在不同系统中，CU(或CU-CP和CU-UP)、DU或RU也可以有不同的名称，但是本领域的技术人员可以理解其含义。例如，在开放式无线接入网(open radio access network，O-RAN)系统中，CU也可以称为O-CU(开放式CU)，DU也可以称为O-DU，CU-CP也可以称为O-CU-CP，CU-UP也可以称为O-CU-UP，RU也可以称为O-RU。为描述方便，本申请中以CU，CU-CP，CU-UP、DU和RU为例进行描述。本申请中的CU(或CU-CP、CU-UP)、DU和RU中的任一单元，可以是通过软件模块、硬件模块、或者软件模块与硬件模块结合来实现。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
终端设备可以是向用户提供语音和/或数据连通性的设备；终端设备也可以是具有无线连接功能的设备。终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。终端设备也可以称为用户设备(user equipment，UE)、接入终端、终端、用户单元(subscriber unit)、用户站、移动站、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、远方站、远程终端、移动设备、用户终端、无线网络设备、用户代理或用户装置。本申请实施例中，终端设备包括但不限于：蜂窝电话(cellular phone)、手机(mobile phone)、无线数据卡、无线调制解调器(modem)、平板型电脑(pad)、膝上型电脑(laptop computer)、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、带无线收发功能的电脑、无绳电话、会话启动协议(session initiation protocol，SIP)电话、智能电话(smart phone)、无线本地环路(wireless localloop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备(handset)、计算设备或连接到无线调制解调器的其它设备、车载设备(例如，汽车、自行车、电动车、飞机、船舶、火车、高铁等)、可穿戴设备(例如智能手表、智能手环、计步器、智能眼镜等)、卫星终端、物联网或车联网中的终端设备，以及未来网络中的任意形态的终端、中继用户设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端等。终端设备还可以是虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、智能销售点(point of sale，POS)机、客户终端设备(customer-premises equipment，CPE)、轻型终端设备(light UE)、能力降低的用户设备(reduced capability UE，REDCAP UE)、机器类型通信(machine type communication，MTC)终端、工业控制(industrial control)中的终端设备、无人驾驶(self driving)中的终端设备、远程医疗(remote medical)中的终端设备、智能电网(smart grid)中的终端设备、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的终端设备、智慧家庭(smart home)中的终端设备、触觉终端设备、智能家居设备(例如，冰箱、电视、空调、电表等)、智能机器人、机械臂、车间设备、无人驾驶中的无线终端、或飞行设备(例如，智能机器人、热气球、无人机、飞机)等。终端设备还可以是车辆装置，例如整车装置、车载模组、车载芯片、车载单元(on board unit，OBU)或车联网终端盒子(telematics box，T-BOX)等，终端设备还可以是其他具有终端功能的设备，例如，终端设备还可以是终端直通(device to device，D2D)通信中担任终端功能的设备。终端设备还可以是WiFi系统中的终端，例如，终端设备还可以是UWB终端等。本申请实施例对终端设备并不限定。
本申请实施例中，用于实现终端设备的功能的装置可以是终端设备，也可以是能够支持终端设备实现该功能的装置，例如芯片或芯片系统，该装置可以被安装在终端设备中。芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。本申请实施例的技术方案中，以用于实现终端设备的功能的装置是终端设备，也可以称为终端(terminal)，下面可能以终端设备是UE为例，描述本申请实施例提供的技术方案。此外，终端设备也可以是用户端(user end，UE)，本申请所提及的UE可以是用户设备，也可以是用户端。
基站和终端的角色可以是相对的，例如，图1中的直升机或无人机112i可以被配置成移动基站，对于那些通过112i接入到无线接入网110的终端112j来说，终端112i是基站；但对于基站111a来说，112i是终端，即111a与112i之间是通过无线空口协议进行通信的。当然，111a与112i之间也可以是通过基站与基站之间的接口协议进行通信的，此时，相对于111a来说，112i也是基站。因此，基站和终端都可以统一称为通信装置，图1中的111a和111b可以称为具有基站功能的通信装置，图1中的112a-112j可以称为具有终端功能的通信装置。
网络设备与终端设备之间可以通过无线链路通信。网络设备到终端设备的传输链路可以称为下行链路(downlink，DL)或下行信道，用于传输下行信号。终端设备到网络设备的传输链路可以称为上行链路(uplink，UL)或上行信道，用于传输上行信号。示例性地，网络设备可以通过下行信道向终端设备发送下行参考信号，例如小区特定的参考信号(cell-specific reference signal，CRS)、UE特定的参考信号(UE-specific reference signal)，以用于信道状态信息的测量、数据解调、波束训练、时频参数跟踪等。终端设备可以通过上行信道向网络设备发送上行参考信号，以用于上下行信道测量、数据解调等。网络设备和终端设备之间还可以通过下行信道进行下行数据传输，通过上行信道进行上行数据传输。
网络设备和其他网络设备之间也可以进行无线通信，终端设备和其他终端设备之间也可以进行无线通信。
无线通信系统的主要功能可以包括收发机之间的信息交互。无线通信系统的基本原理可以是：发送端发送特定的波形信号，该波形信号经过无线信道后被接收机所接收。接收到的波形信号经过信号处理后，可以解调出发送端所发送的信号。
作为感知系统的示例，雷达可以应用于无线感知系统。雷达的基本原理可以是：发送机发送特定的波形信号，该波形信号经过无线信道后，被接收机所接收。结合发送信号和接收信号进行信号处理，可以提取出无线信道中感兴趣的目标(也可以称为感知目标或目标)。
从发送、传输和接收的物理过程来看，无线感知和无线通信的非常相似。示例性地，感知通信一体化(integrated sensing and communication,ISAC)可以实现无线通信和感知技术(例如，采用雷达进行感知)的一体化，即，在实现通信的同时对周围的环境进行感知。
图1示出的通信系统也可以应用于感知的场景。在应用于感知场景的情况下，图1示出的通信系统也可以称为感知系统或通信感知系统。例如，图1示出的终端设备和网络设备可以对感知目标进行感知。
图2是一些感知系统的示意性框图。其中，虚线(dashed line)圆圈表示感知区域。在感知场景中，控制端可以控制感知的过程，例如确定用于感知的信号的频率等。发送端可以发送信号。发送端所发送的信号经过感知目标的反射后，可以被接收端接收。接收端可以对接收到的信号进行处理，从而得到感知结果(或称为感知报告)。示例性地，感知目标可以包括汽车、自行车、无人机等，但是本申请对此不限定，感知目标还可以包括其他目标。
作为示例，参见图2中的(a)，网络设备(例如BS)可以作为发送端和控制端，终端设备(例如UE)可以作为接收端。网络设备发送的信号(由实线箭头表示)经过感知目标(例如汽车)的反射后，可以被终端设备接收。终端设备可以对接收到的信号进行信号处理，得到感知结果。可选地，终端设备可以在处理节点进行信号处理。处理节点可以在终端设备内部，也可以在终端设备之外，例如，处理节点可以在网络设备、或核心网设备等设备中。
示例性地，感知结果可以包括感知目标的距离、速度、角度、强度等信息。其中，感知目标的距离可以包括感知目标与发送端的距离，也可以包括感知目标与接收端的距离，还可以包括感知目标与其他目标的距离。感知目标的速度可以包括感知目标的线速度，也可以包括感知目标相对于发送端、接收端或其他目标的角速度。感知目标的角度可以包括感知目标相对于发送端、接收端或其他目标的角度。感知目标的强度可以包括感知目标的机械强度等。
作为示例，参见图2中的(b)，终端设备可以作为发送端，网络设备可以作为接收端和控制端。终端设备发送的信号经过感知目标的反射后，可以被网络设备接收。网络设备可以对接收到的信号进行信号处理，得到感知结果。可选地，网络设备可以在处理节点进行信号处理。处理节点可以在网络设备内部，也可以在网络设备之外，例如，处理节点可以在核心网设备等设备中。
作为示例，参见图2中的(c)，网络设备#1可以作为发送端和控制端，网络设备#2可以作为接收端。网络设备#1发送的信号经过感知目标反射后，可以被网络设备#2接收。网络设备#2可以对接收到的信号进行信号处理，得到感知结果。可选地，网络设备#2可以在处理节点进行信号处理。处理节点可以在网络设备#2内部，也可以在网络设备#2之外，例如，处理节点可以在网络设备#1、或核心网设备等设备中。
作为示例，参见图2中的(d)，终端设备#1可以作为发送端和控制端，终端设备#2可以作为接收端。终端设备#1发送的信号经过感知目标的反射后，可以被终端设备#2接收。终端设备#2可以对接收到的信号进行信号处理，得到感知结果。可选地，终端设备#2可以在处理节点进行信号处理。处理节点可以在终端设备#2内部，也可以在终端设备#2之外，例如，处理节点可以在网络设备、或核心网设备等设备中。
作为示例，参见图2中的(e)，网络设备#1可以作为发送端，网络设备#2可以作为接收端，网络设备#3可以作为控制端。网络设备#3可以向网络设备#1和网络设备#2发送用于控制感知过程的信息，如点线(dotted line)箭头表示。网络设备#1发送的信号经过感知目标的反射后，可以被网络设备#2接收。网络设备#2可以对接收到的信号进行信号处理，得到感知结果。可选地，网络设备#2可以在处理节点进行信号处理。处理节点可以在网络设备#2内部，也可以在网络设备#2之外，例如，处理节点可以在网络设备#1、网络设备#3、或核心网设备等设备中。
作为示例，参见图2中的(f)，网络设备可以作为发送端、接收端和控制端。网络设备发送的信号经过感知目标的反射后，可以被该网络设备接收。该网络设备可以对接收到的信号进行信号处理，得到感知结果。可选地，网络设备可以在处理节点进行信号处理。处理节点可以在网络设备内部，也可以在网络设备之外，例如，处理节点可以在核心网设备等设备中。
作为示例，参见图2中的(g)，终端设备可以作为发送端、接收端和控制端。终端设备发送的信号经过感知目标的反射后，可以被该终端设备可以接收。该终端设备可以对接收到信号的进行信号处理，得到感知结果。可选地，终端设备可以在处理节点进行信号处理。处理节点可以在终端设备内部，也可以在终端设备之外，例如，处理节点可以在网络设备、或核心网设备等设备中。
感知性能可以包括测距分辨性能等。其中，测距分辨性能可以与信号带宽有关。带宽越大，距离分辨率越小，测距分辨性能越好。
图3是感知测距的示意图。下面以感知测距为例，介绍距离分辨率的计算方式的示例。
感知测距可以通过无线信号测量从发送装置、到感知目标、再到接收装置之间的距离。根据接收装置和发送装置是否在同一个位置，感知测距可以分为双基和单基两种模式，分别由图3中的(a)和图3中的(b)所示。
参见图3中的(a)，在双基测距模式下，发送装置和接收装置不在同一个位置。双基测距模式下测量得到的距离为d1与d2的和，即距离d＝d1+d2。双基测距所对应的距离分辨率为c/B，其中，c表示真空中的光速，B表示信号的带宽。
参见图3中的(b)，在单基测距模式下，发送装置和接收装置在同一个位置，在图3中的(b)中用发送/接收装置表示。单基测距模式下测量得到的距离为d。单基测距所对应的距离分辨率为c/2B，其中，c表示真空中的光速，B表示信号的带宽。
此外，感知性能还可以包括测距旁瓣性能。测距旁瓣性能可以用峰值旁瓣比(peak-to-side lobe ratio，PSLR)等参数表征。PSLR可以是感知信号的主瓣的峰值强度相对于该感知信号峰值强度最大的旁瓣的峰值强度之比。PSLR越大，则说明感知信号的主瓣的峰值强度与旁瓣的峰值强度之间的差距越大。在对多个目标进行感知的场景下，PSLR越大，则针对一个目标的感知信号的主瓣越不容易被该目标的邻近目标的感知信号的旁瓣混淆，从而越能够区分不同的目标，进而测距旁瓣性能越好。
由图3可知，对于感知测距而言，无论是双基测距模式还是单基测距模式，带宽越大，距离分辨率的值越小，从而分辨能力越强，即测距分辨性能越好。
然而，受限于无线频谱资源紧缺等因素，运营商用于通信的频谱资源几乎都是非连续的，即整个频谱资源被分割成多个在频域上连续的部分，每个在频域上连续的部分可以称为可用频段。各个可用频段之间可能不连续。示例性地，在NR系统中，可用频段的标识可以是频段号，例如n3和n5等。
将这些非连续的可用频段应用到感知场景中，导致感知场景下的可用频段也是非连续的。其中，如果单独使用一个可用频段进行感知，难以满足感知性能的需求。例如，一个可用频段的带宽不够大，导致距离分辨率的数值较高，从而测距分辨性能较差。
在通信场景下，为了解决单个可用频段难以满足通信带宽需求的问题，第三代合作伙伴计划(the 3rd generation partner project，3GPP)引入了载波聚合(carrier aggregation，CA)。CA可以通过将多个连续或非连续的CC聚合成更大的带宽，以满足3GPP的要求。其中，两个连续的CC是指这两个CC在频域上连续；两个非连续的CC可以是指这两个CC在频域上不连续，或者说，这两个CC在频域上有间隙。上述一个可用频段可以包括一个或多个CC。
CA可以将多个CC聚合成更大的带宽，但是由于CA主要面向的是提升通信吞吐，将CA直接应用于感知，会存在一些问题。例如，对于通信场景，多个CC可以提升吞吐，这些CC之间的频率间隔对应CA的性能影响不大。而对于感知场景，CC之间的间隔会对感知性能产生影响。例如，CC之间的间隔越大，测距分辨性能越好，但是测距旁瓣性能会有所恶化。当频带间隔过大，甚至可能导致多个CC无法相干合成。
图4是本申请实施例提供的一种多频段分配的示意图。参见图4，向右实箭头表示频率，沿着箭头越向右，则表明频率越大。图4中的各个部分分别示出了四个频段，分别为频段1、频段2、频段3和频段4。
图4示出的四个频段可以属于上述由整个频谱资源划分成的多个可用频段中的一个可用频段，也可以属于不同的可用频段。例如，频段1至4可以均属于频段号为n3的可用频段。又例如，频段1可以属于频段号为n3的可用频段，而频段2至4可以属于频段号为n5的可用频段。
图5是本申请实施例提供的一些测距响应函数的示意图。图5中的(a)至(c)分别为图4中的(a)至(c)的测距响应函数的示意图。
下面结合图4和图5，介绍频段间隔、测距分辨性能与测距旁瓣性能之间的关系。图4假设频段1至4分别占用相等的带宽，例如，带宽为100兆赫兹(MHz)。本领域技术人员可以理解，上述假设不构成对本申请的限定。图4所示出的频段间隔、测距分辨性能与测距旁瓣性能之间的关系，对于其他带宽的频段同样适用。
示例1，参见图4中的(a)，频段1至4中相邻两个频段之间的间隔为0MHz。参见图5中的(a)，PSLR可以是距离为1.072米(m)的点的纵坐标，约为-13.3dB。示例1的测距分辨性能作为其他示例的基准，在图5中的(b)和(c)中以实线表示。
示例2，参见图4中的(b)，频段1至4中相邻两个频段之间的间隔Bgap为20MHz。参见图5中的(b)，PSLR可以是距离为2.332的点的纵坐标，约为-12.5dB。与示例1相比，示例2的PSLR下降约0.8dB。因此，相对于示例1，示例2的测距旁瓣性能下降。在图5中的(b)中，示例1的测距响应函数以实线表示，示例2的测距响应函数以虚线表示。可见，示例2的测距分辨性能是示例1的测距分辨性能的1.2倍。因此，相对于示例1，示例2的测距分辨性能提升。
示例3，参见图4中的(c)，频段1至4中相邻两个频段之间的间隔Bgap为50MHz。参见图5中的(c)，PSLR可以是距离为1.925的点的纵坐标，约为-7.2dB。与示例1相比，示例3的PSLR下降约5dB。因此，相对于示例1，示例3的测距旁瓣性能进一步下降。在图5中的(c)中，示例1的测距响应函数以实线表示，示例3的测距响应函数以虚线表示。可见，示例3的测距分辨性能是示例1的测距分辨性能的1.5倍。因此，相对于示例1和示例2，示例3的测距分辨性能进一步提升。
由图4的三个示例可以得到：
1)增加相邻频段之间的间隔，可以提升测距分辨性能。
2)随着相邻频段之间的间隔的增加，虽然测距分辨性能可以提升，但是测距旁瓣性能会恶化。进一步地，当相邻频段之间的间隔过大时，测距旁瓣性能会严重恶化，从而可能严重影响最终的感知性能(如多目标场景)。
可见，在使用多个频段进行感知的场景下，感知装置需要平衡测距分辨性能和测距旁瓣性能，以满足要求。因此，在无线感知场景中，如何支持感知装置使用多个频段进行有效的感知，是亟待解决的问题。
图6是本申请实施例提供的一种感知资源指示方法600的示意性流程图。方法600中，向感知装置指示的多个频段可以满足一定条件，使得这些频段对应的感知信号能够平衡测距分辨性能和测距旁瓣性能，从而支持感知装置使用多个频段进行有效感知。图6中虚线表示的操作表示方法600中可选的操作。下面结合图6介绍方法600。
S610，第一装置确定N个频段。
可选地，第一装置可以是感知的控制端(或者称为控制节点或控制装置等)。在一些可能的实现方式中，第一装置还可以是感知信号的发送端(或者称为发送节点或发送装置等)，这样，第一装置可以发送感知信号。在另一些可能的实现方式中，第一装置还可以是感知信号的接收端(或者称为接收节点或接收装置等)，这样，第一装置可以接收感知信号。在又一些可能的实现方式中，第一装置既不是感知信号的发送端，也不是感知信号的接收端。这种情况下，第一装置可以视为发送端和接收端之外的第三方装置。
示例性地，第一装置可以是终端设备或网络设备。例如，前述图1中的终端设备或网络设备。
其中，N为大于1的整数。换言之，第一装置确定多个频段。示例性地，N个频段可以包括带宽相等的N个频段，但是本申请对此不限定。N个频段中的两个频段也可以具有不同的带宽。为便于描述，下面以带宽相等的N个频段为例。但是本领域技术人员可以理解，本申请对于带宽不完全相等的N个频段，同样适用。
可选地，N个频段中的一个频段包括至少一个CC。例如，第一频段包括至少一个CC。可选地，N个频段中的一个频段包括多个CC。其中，这些CC之间可以连续，也可以不连续。可选地，N个频段中的一个频段是一个CC。例如，N个频段分别为N个CC。
示例性地，N个频段可以用于感知。例如，N个频段可以用于对多个目标感知。可选地，一个目标对应一个物理实体。例如，目标可以是卡车或篮球等。将一个目标对应于一个物理实体，使得感知测距的过程容易实现。可选地，一个目标对应一个距离分辨率单元。一个较大的物理实体，例如卡车，可以对应多个距离分辨率单元。这些距离分辨率单元可以在空间上连续分布。将一个目标对应一个距离分辨率单元，使得对感知信号的分析更加精细，从而提升感知结果的准确性。
示例性地，对多个目标进行感知，可以包括对多个目标分别进行测距。通过对多个目标分别进行测距，可以获取多个目标的距离、速度、角度、或强度等信息。
可选地，该N个频段用于发送或接收第一感知信号。例如，第一装置可以在N个频段上发送或接收第一感知信号。又例如，第二装置可以在N个频段上发送或接收第一感知信号。
其中，第一感知信号可以用于感知，例如，第一感知信号可以用于对多个目标感知。本申请对第一感知信号的具体形式不做限定。例如，第一感知信号可以是参考信号等。本申请对第一感知信号的具体名称不做限定，第一感知信号也可以称为信号或其他名称。
N个频段可以属于相同的可用频段，例如N个频段可以属于频段号为n40的可用频段，其中，n40可以是技术规范(technical specification，TS)38.101定义的。但是本申请对此不限定，N个频段也可以属于不同的可用频段，例如N个频段中的一个频段可以属于频段号为n40的可用频段；N个频段中的另一个频段可以属于频段号为n48的可用频段。此外，N个频段也可以属于新定义的可用频段，例如，未来通信系统的标准所定义的可用频段。
本申请不限定N个频段的名称，例如，N个频段还可以称为感知频段或其他名称。
可选地，该N个频段中第一频段的带宽与第一间隔之间的比值为第一比值。
其中，第一频段可以是N个频段中任意一个频段。
其中，第一间隔可以为第二频段的最大频率与第三频段的最小频率之间的间隔。
其中，该第二频段和该第三频段可以是该N个频段中任意两个相邻频段。例如，参见图4，频段1和频段2可以是相邻的两个频段。频段2和频段3可以是相邻的两个频段。本领域技术人员可以理解，“相邻的两个频段”不限定这两个频段之间是否有间隔。术语“相邻”表示这两个频段之间没有N个频段中的其他频段。
其中，该第二频段的最大频率小于该第三频段的最小频率。例如，第二频段可以是图4中的频段1，第三频段可以是图4中的频段2。示例性地，第一间隔可以是图4中频段1的最大频率与频段2的最小频率之间的间隔，即图4中标注Bgap的部分。
示例性地，第一频段可以为：第二频段，或第三频段，或N个频段中除第二频段和第三频段之外的频段。例如，参见图4，第一频段可以是频段1至频段4中的任何一个频段。
可选地，该第一比值满足第一条件。在一些可能的实现方式中，S610包括：根据第一条件，确定N个频段。
本申请实施例中，第一比值可以替换为第三比值。例如，第三比值满足第一条件。其中，第三比值为第一间隔与N个频段中第一频段的带宽之间的比值。第一比值和第三比值互为倒数，因此，本领域技术人员可以理解，在本申请实施例中，当第一比值替换为第三比值时，第一条件中相应的内容可以取倒数。
示例性地，该第一条件与第一参数相关。其中，第一参数可以用于指示第一感知信号的期望的测距旁瓣性能，或者，第一参数用于指示第一感知信号的测距旁瓣性能的阈值。其中，第一感知信号的测距旁瓣性能的阈值越大，第一感知信号的期望的测距旁瓣性能越差。反之，第一感知信号的测距旁瓣性能的阈值越小，第一感知信号的期望的测距旁瓣性能越好。第一参数可以是PSLR的形式。可选地，第一条件包括：第一感知信号的PSLR小于或等于第一参数。例如，第一参数为-8分贝(dB)，第一条件包括：第一感知信号的PSLR小于或等于-8dB。第一参数也可以是其他形式，本申请对此不限定。本申请不限定第一参数的具体名称，例如，第一参数也可以称为旁瓣水平、阈值、性能阈值、性能期望或其他名称。
可选地，第一参数是预配置或预定义的，或者是第一装置确定的。可选地，第一参数是其他装置通过信令指示给第一装置的。
可选地，第一间隔满足第一条件。例如，N个频段中各个频段的带宽可以是预配置或者预定义的。这样，仅需要约束第一间隔满足第一条件。
本申请不排除根据第一条件和其他条件确定N个频段的方案。也就是说，N个频段除了满足第一条件之外，还可以满足其他条件。此外，本申请实施例不限定第一条件的名称，第一条件还可以称为间隔条件、比值条件或其他名称。关于第一条件的其他描述请参见后文，此处暂不赘述。
在一些可能的实现方式中，确定N个频段，既包括确定N个频段的带宽和间隔，也包括确定N个频段在频域中的位置。例如，第一频段在频域中的位置，可以用第一频段在频域中的起始频率和/或终止频率表示，例如，3.55GHz、3.65GHz、或者3.55GHz～3.65GHz；也可以用第一频段的中心频率表示，例如，3.6GHz。
S620，第一装置向第二装置发送第一信息。对应地，第二装置接收来自第一装置的第一信息。
可选地，第二装置可以是感知的被控制侧(或者称为被控制装置或被控制节点)。在一些可能的实现方式中，第二装置还可以是感知信号的发送端。在另一些可能的实现方式中，第二装置还可以是感知信号的接收端。示例性地，第二装置可以称为感知装置或其他名称，本申请对此不限定。
示例性地，第一信息可以承载于下行控制信息(downlink control information，DCI)、上行控制信息(uplink control information，UCI)、RRC消息或者媒体接入控制(medium access control，MAC)控制元素(control element，CE)中，但是本申请对此不限定，第一信息还可以承载于其他消息中。
本申请不限定第一信息的名称，第一信息还可以称为指示信息、频段指示信息、频率配置信息或具有其他名称。
可选地，该第一信息用于指示该N个频段。
本申请对第一信息指示N个频段的具体方式不做限定。例如，第一信息可以包括N个频段的索引，从而指示N个频段。又例如，第一信息可以指示N个频段的起始频率、每个频段的带宽、相邻频段的间隔和频段数量(即，N)，从而指示N个频段。
在一些可能的实现方式中，方法600还包括：第二装置根据第一信息，确定N个频段。在另一些可能的实现方式中，N个频段可以是预配置或预定义的。例如，第二装置可以在出厂时预配置N个频段。又例如，标准可以预定义N个频段。这样，方法600可以不包括S610和S620。或者，S610可以替换为：第二装置确定N个频段。
S630，第二装置根据该N个频段，发送或接收该第一感知信号。
在另一些可能的实现方式中，上述S630可以替换为：第二装置根据第一信息，发送或接收该第一感知信号。或者说，第二装置可以根据频率配置，发送或接收该第一感知信号。
其中，“发送或接收第一感知信号”可以理解为进行感知。例如，对一个或多个目标进行感知。
在一些可能的实现方式中，在第二装置为感知信号的发送端的情况下，S650可以包括：第二装置在N个频段上，向多个目标分别发送第一感知信号。或者说，第二装置可以根据第一信息，向多个目标分别发送第一感知信号。
在另一些可能的实现方式中，在第二装置为感知信号的接收端的情况下，S650可以包括：第二装置在N个频段上，接收感知信号。或者说，第二装置可以根据第一信息，接收感知信号。其中，第二装置接收的感知信号可以是经过多个目标的回波信号。在一些可能的实现方式中，S650包括：第二装置对接收到的感知信号进行处理，得到感知结果；或者说，第二装置根据接收到的感知信号，确定感知结果。上述感知结果可以称为多频段感知结果或具有其他名称，本申请对感知结果的名称不做限定。
基于上述方案，第一装置可以向感知装置指示多个频段，这些频段可以用于发送或接收第一感知信号。上述方案中的第一比值可以指示多个频段中两个相邻频段的间隔(简称“频段间隔”)，例如，上述第一间隔。其中，频段间隔对测距分辨性能和测距旁瓣性能有一定的影响。假设频段的带宽不变，频段间隔越大，第一感知信号的测距分辨性能越好，但是测距旁瓣性能较低；频段间隔越小，第一感知信号的测距分辨性能越低，但是测距旁瓣性能越好。本申请实施例中，用于感知的多个频段的频段间隔满足一定条件，并且该条件与用于指示期望的测距旁瓣性能的参数相关。因此，第一条件可以通过约束这些频段的频段间隔，平衡测距分辨性能和测距旁瓣性能。例如，虽然增加频段间隔可以提高测距分辨性能，但是在本申请实施例中，由于第一条件的约束，频段间隔不会无限增加，而是在保证第一感知信号的实际的测距旁瓣性能满足期望的测距旁瓣性能的情况下，有限地增加频段间隔，从而在满足期望的测距旁瓣性能的要求的情况下，提高测距分辨性能。
可选地，第一条件包括：第一感知信号的期望的测距旁瓣性能越好，第一比值越大。换言之，第三比值(即第一比值的倒数)越小。可选地，第一条件包括：第一感知信号的期望的测距旁瓣性能越低，第一比值越小。换言之，第三比值(即第一比值的倒数)越大。
可以理解的是，第一比值可以指示第一间隔。假设N个频段中各个频段的带宽不变，第一比值越大，则第一间隔越小，即两个相邻频段之间的间隔越小。例如参见图4示出的规律，两个相邻频段之间的间隔越小，则这些频段对应的感知信号能达到越好的测距旁瓣性能。因此，在第一感知信号的测距旁瓣性能要求更高的情况下，第一比值可以更大。
其中，期望的测距旁瓣性能高，可以理解为期望的PSLR低。期望的测距旁瓣性能低，可以理解为期望的PSLR高。
可选地，该第一感知信号的期望的测距旁瓣性能优于第二感知信号的期望的测距旁瓣性能，该第一比值大于第二比值。可选地，该第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能，该第一比值大于第二比值。
其中，该第二感知信号在该M个频段上被发送或接收，该M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，该第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，该第五频段和该第六频段为该M个频段中任意两个相邻频段，该第五频段的最大频率小于该第六频段的最小频率，该第四频段的带宽等于该第一频段的带宽，该第四频段为：该第五频段，或该第六频段，或该M个频段中除该第五频段和该第六频段之外的频段。
可选地，M个频段包括带宽相等的M个频段。例如，N个频段与M个频段中的各个带宽均相等。
M个频段的描述与N个频段的描述类似，具体可参见上述N个频段的描述，此处不再赘述。此外，第四频段、第五频段和第六频段分别与前述第一频段、第二频段与第三频段类似，具体可参见上面的响应描述，此处不再赘述。
基于上述方案，假设频段的带宽不变，第一比值大于第二比值，则N个频段的频段间隔小于M个频段的频段间隔。因此，更好的测距旁瓣性能对应更小的频段间隔。这样，在N个频段满足第一条件的情况下，N个频段能够达到期望的测距旁瓣性能。
在一些可能的实现方式中，该第一条件包括第一映射关系。其中，第一映射关系可以包括第一参数和第一比值之间的映射关系。第一参数可以用于指示第一感知信号的期望的测距旁瓣性能或第一感知信号的测距旁瓣性能的阈值。
可选地，第一参数可以包括k的倒数。可选地，第一映射关系选自表1的一个或多个行。
表1
其中，Bgap表示该第一间隔，B表示该第一频段的带宽。表1中的可以表示第一比值。k可以用于指示期望的第一感知信号的测距旁瓣性能，或者，第一感知信号的测距旁瓣性能的阈值。其中，k越小，表示第一感知信号的测距旁瓣性能越差。反之，k的倒数越小，表示第一感知信号的测距旁瓣性能越好。
在一些示例中，k可以指示第一感知信号的期望的测距旁瓣性能的最小值(即，第一感知信号的测距旁瓣性能的阈值的最大值)。例如，第一装置所确定的N个频段实际对应的k可以大于或等于表1中的k。其中，N个频段实际对应的k，可以理解为在N个频段上发送或接收的第一感知信号的测距旁瓣性能所对应的k。
在另一些示例中，第一感知信号的期望的测距旁瓣性能在k的附近，或者说，约等于k。例如，第一装置所确定的N个频段实际对应的k可以约等于表1中的k。
第一参数还可以有除k之外的其他表现形式，本申请对此不限定。
表1中的数值可以在一定误差内变动。示例性地，表1中的2.106在0.1的范围内变动。例如，2.10可以覆盖2.006-2.206的范围内的数值。即，表1中的2.106可以替换为2.006-2.206中的任意数值。上述仅为示例，误差的范围也可以不是0.1，而是更大或更小的范围。此外，表1中的k对应的列中的数值也可以在一定误差内变动，举例不再赘述。本申请对表1中各数值的形式也不做限定，例如，表1中各个数值可以以分数、百分数的形式表示。又例如，表1中各个数值可以在小数点后保留3位以上或以下的数字。
第一映射关系还可以包括表1之外的其他行，本申请对此不限定。
示例性地，第一比值满足第一条件；第一条件包括第一映射关系。因此，本领域技术人员可以理解，第一比值可以满足第一映射关系。下面介绍第一比值满足第一映射关系的一些示例。为便于描述，下面将第一映射关系中的称为第一比值的阈值，而将第一装置所确定的N个频段的称为实际的第一比值。
示例1，实际的第一比值等于(或约等于)第一比值的阈值。例如，在k为0.678的情况下，实际的第一比值等于(或约等于)2.106。
示例2，实际的第一比值大于或等于第一比值的阈值。例如，k为0.678的情况下，实际的第一比值大于或等于2.106。
可选地，第一映射关系中第一比值可以替换为第三比值。例如，第三比值可以表示为相应地，对表1中第一比值的数值取倒数，可以得到第三比值的数值。
通过上述实施例，第一条件可以通过查表确定。查表确定第一条件所需要的处理开销较小，因此上述实施例能够降低第一装置的处理开销。
在一些可能的实现方式中，该第一条件包括公式1-1。
或者，公式1-1可以变形为公式1-2。
公式1-1可以理解为关于第一比值的公式，公式1-2可以理解为关于第三比值的公式。公式1-1和公式1-2中的参数参见前文的描述，不再赘述。
示例性地，通过公式1-1或公式1-2，可以得到k与第一比值的映射关系，例如，第一映射关系。但是本申请对此不限定，第一映射关系还可以通过其他方式得到。表1仅是公式1-1或公式1-2能够得到映射关系的一个示例，不构成对本申请的限定。
示例性地，第一比值满足第一条件；第一条件包括公式1-1和/或公式1-2。因此，本领域技术人员可以理解，第一比值可以满足公式1-1和/或公式1-2。下面介绍第一比值满足公式1-1和/或公式1-2的一些示例。为便于描述，下面将公式1-1和/或公式1-2中的称为第一比值的阈值，而将第一装置所确定的N个频段的称为实际的第一比值。
示例1，实际的第一比值等于第一比值的阈值。例如，在k为0.678的情况下，实际的第一比值为2.106。
示例2，实际的第一比值大于或等于第一比值的阈值。例如，k为0.678的情况下，实际的第一比值大于或等于2.106。
通过上述实施例，第一条件可以通过公式确定。公式确定第一条件所需要的存储空间较小，因此上述实施例能够节约第一装置的存储空间。
可选地，第一参数可以包括PSLR。可选地，第一映射关系选自表2的一个或多个行。
表2
其中，PSLR表示峰值旁瓣比，dB表示分贝。其他参数参见前文的描述，不再赘述。其中，k所在的列可以在表2中省略，即，表2可以仅包括PSLR和所在的列。但是本申请对此不限定，k所在的列也可以在表2中保留。表2中的可以指示第一比值。
表2中的PSLR可以用于指示第一感知信号的期望的测距旁瓣性能，或者，第一感知信号的测距旁瓣性能的阈值。其中，表2中的PSLR越大，表示第一感知信号的期望的测距旁瓣性能越差。
在一些示例中，表2中的PSLR可以指示第一感知信号的期望的测距旁瓣性能的最小值。例如，第一装置所确定的N个频段实际对应的PSLR可以小于或等于表2中的PSLR。其中，N个频段实际对应的PSLR，可以理解为在N个频段上发送或接收的第一感知信号的测距旁瓣性能所对应的PSLR。
在另一些示例中，第一感知信号的期望的测距旁瓣性能在PSLR的附近，或者说，约等于PSLR。例如，第一装置所确定的N个频段实际对应的PSLR可以约等于表2中的PSLR。
第一参数还可以有除PSLR之外的其他表现形式，本申请对此不限定。
表2中的数值可以在一定误差内变动。示例性地，表2中的2.106在0.1的范围内变动。例如，2.10可以覆盖2.006-2.206的范围内的数值。即，表2中的2.106可以替换为2.006-2.206中的任意数值。上述仅为示例，误差的范围也可以不是0.1，而是更大或更小的范围。此外，表2中的PSLR和/或k对应的列中的数值也可以在一定误差内变动，举例不再赘述。本申请对表2中各数值的形式也不做限定，例如，表2中各个数值可以以分数、百分数的形式表示。又例如，表2中各个数值可以在小数点后保留3位以上或以下的数字。
第一映射关系还可以包括表2之外的其他行，本申请对此不限定。
示例性地，第一比值满足第一条件；第一条件包括第一映射关系。因此，本领域技术人员可以理解，第一比值可以满足第一映射关系。下面介绍第一比值满足第一映射关系的一些示例。为便于描述，下面将第一映射关系中的称为第一比值的阈值，而将第一装置所确定的N个频段的称为实际的第一比值。
示例1，实际的第一比值等于(或约等于)第一比值的阈值。例如，在PSLR为-8dB的情况下，实际的第一比值等于(或约等于)2.106。
示例2，实际的第一比值大于或等于第一比值的阈值。例如，PSLR为-8dB的情况下，实际的第一比值大于或等于2.106。
可选地，第一映射关系中第一比值可以替换为第三比值。例如，第三比值可以表示为相应地，对表2中第一比值的数值取倒数，可以得到第三比值的数值。
在一些可能的实现方式中，该第一条件包括公式2-1或公式2-2。
其中，PSLR的参考点为c表示光速，M＝B/△，其中，△表示该第一频段的子载波间隔。B可以为第一频段的带宽。M可以表示第一频段的子载波数量。
其中，公式2-2也可以表示为PSLR＝sinc(k)。其中，sinc()可以表示辛格函数。例如，
示例性地，第一频段可以包括一个CC。这样，M可以表示一个CC包括的子载波数量。△可以表示该CC的子载波间隔。
示例性地，在M较大时，公式2-1可以变形为公式2-2。
示例性地，通过公式2-1或公式2-2，可以得到PSLR与第一比值的映射关系，例如，第一映射关系。但是本申请对此不限定，第一映射关系还可以通过其他方式得到。表2仅是公式2-1或公式2-2能够得到映射关系的一个示例，不构成对本申请的限定。
示例性地，第一比值满足第一条件；第一条件还包括公式2-1或公式2-2。因此，本领域技术人员可以理解，第一比值除了满足公式1-1和/或公式1-2之外，还可以满足公式2-1或公式2-2。下面介绍第一比值还满足公式2-1或公式2-2的一些示例。为便于描述，下面将公式1-1或公式1-2中的称为第一比值的阈值，而将第一装置所确定的N个频段的称为实际的第一比值。
示例1，实际的第一比值等于第一比值的阈值。例如，在PSLR为-8dB的情况下，实际的第一比值为2.106。
示例2，实际的第一比值大于或等于第一比值的阈值。例如，PSLR为-8dB的情况下，实际的第一比值大于或等于2.106。
在一些示例中，第一条件可以包括公式1-1和公式2-1。在另一些示例中，第一条件可以包括公式1-2和公式2-1。在再一些示例中，第一条件可以包括公式1-1和公式2-2。在再一些示例中，第一条件可以包括公式1-2和公式2-2。
在一些示例中，第一条件可以包括公式和映射关系两种形式。例如，第一条件可以包括选自表2的一个或多个行，且不包括k所在的列的第一映射关系和公式2-2。
通过上述实施例，第一条件可以通过公式确定。公式确定第一条件所需要的存储空间较小，因此上述实施例能够节约第一装置的存储空间。
可选地，第一参数可以包括δ。其中，δ是本申请实施例新定义的参数。示例性地，δ表示的内容可以称为旁瓣水平(sidelobe level，SL)或参考点旁瓣水平(reference point sidelobe level，RPSL)。示例性地，在δ小于或等于第二参数的情况下，δ可以为PSLR。例如，第二参数可以是-13.4dB～-13.3dB中的任意数值。但是本申请对此不限定，第二参数还可以是其他数值。
可选地，第一映射关系选自表3的一个或多个行。
表3
其中，k所在的列可以在表3中省略，即，表3可以仅包括δ和所在的列。但是本申请对此不限定，k所在的列也可以在表3中保留。表3中的可以指示第一比值。
表3中的δ可以用于指示第一感知信号的期望的测距旁瓣性能，或者，第一感知信号的测距旁瓣性能的阈值。其中，表3中的δ越大，表示第一感知信号的期望的测距旁瓣性能越差。
在一些示例中，表3中的δ可以指示第一感知信号的期望的测距旁瓣性能的最小值。例如，第一装置所确定的N个频段实际对应的δ可以小于或等于表3中的δ。其中，N个频段实际对应的δ，可以理解为在N个频段上发送或接收的第一感知信号的测距旁瓣性能所对应的δ。
在另一些示例中，第一感知信号的期望的测距旁瓣性能在δ的附近，或者说，约等于δ。例如，第一装置所确定的N个频段实际对应的δ可以约等于表3中的δ。
第一参数还可以有除δ之外的其他表现形式，本申请对此不限定。
表3中的数值可以在一定误差内变动。示例性地，表3中的2.106在0.1的范围内变动。例如，2.10可以覆盖2.006-2.206的范围内的数值。即，表3中的2.106可以替换为2.006-2.206中的任意数值。上述仅为示例，误差的范围也可以不是0.1，而是更大或更小的范围。此外，表3中的δ和/或k对应的列中的数值也可以在一定误差内变动，举例不再赘述。本申请对表3中各数值的形式也不做限定，例如，表3中各个数值可以以分数、百分数的形式表示。又例如，表3中各个数值可以在小数点后保留3位以上或以下的数字。
第一映射关系还可以包括表3之外的其他行，本申请对此不限定。
示例性地，第一比值满足第一条件；第一条件包括第一映射关系。因此，本领域技术人员可以理解，第一比值可以满足第一映射关系。下面介绍第一比值满足第一映射关系的一些示例。为便于描述，下面将第一映射关系中的称为第一比值的阈值，而将第一装置所确定的N个频段的称为实际的第一比值。
示例1，实际的第一比值等于(或约等于)第一比值的阈值。例如，在δ为-8dB的情况下，实际的第一比值等于(或约等于)2.106。
示例2，实际的第一比值大于或等于第一比值的阈值。例如，δ为-8dB的情况下，实际的第一比值大于或等于2.106。
可选地，第一映射关系中第一比值可以替换为第三比值。例如，第三比值可以表示为相应地，对表3中第一比值的数值取倒数，可以得到第三比值的数值。
通过上述实施例，第一条件可以通过查表确定。查表确定第一条件所需要的处理开销较小，因此上述实施例能够降低第一装置的处理开销。
在一些可能的实现方式中，该第一条件包括公式3-1或公式3-2。
其中，δ的参考点为其中，公式3-2也可以表示为δ＝sinc(k)。其他参数参见前文的描述，不再赘述。
示例性地，在M较大时，公式3-1可以变形为公式3-2。
示例性地，通过公式3-1或公式3-2，可以得到δ与第一比值的映射关系，例如，第一映射关系。但是本申请对此不限定，第一映射关系还可以通过其他方式得到。表3仅是公式3-1或公式3-2能够得到映射关系的一个示例，不构成对本申请的限定。
示例性地，第一比值满足第一条件；第一条件还包括公式3-1或公式3-2。因此，本领域技术人员可以理解，第一比值除了满足公式1-1和/或公式1-2之外，还可以满足公式3-1或公式3-2。下面介绍第一比值还满足公式3-1或公式3-2的一些示例。为便于描述，下面将公式1-1或公式1-2中的称为第一比值的阈值，而将第一装置所确定的N个频段的称为实际的第一比值。
示例1，实际的第一比值等于第一比值的阈值。例如，在δ为-8dB的情况下，实际的第一比值为2.106。
示例2，实际的第一比值大于或等于第一比值的阈值。例如，δ为-8dB的情况下，实际的第一比值大于或等于2.106。
在一些示例中，第一条件可以包括公式1-1和公式3-1。在另一些示例中，第一条件可以包括公式1-2和公式3-1。在再一些示例中，第一条件可以包括公式1-1和公式3-2。在再一些示例中，第一条件可以包括公式1-2和公式3-2。
在一些示例中，第一条件可以包括公式和映射关系两种形式。例如，第一条件可以包括选自表3的一个或多个行，且不包括k所在的列的第一映射关系和公式3-2。
通过上述实施例，第一条件可以通过公式确定。公式确定第一条件所需要的存储空间较小，因此上述实施例能够节约第一装置的存储空间。
下面，介绍公式1-1、公式1-2、公式2-1、公式2-2、公式3-1或公式3-2中至少一项的推导过程。下面的推导过程仅是示例性地，不构成对上述公式的限定。上述公式还有其他可能的推导过程。
假设第一频段包括P个离散的子载波。这样，第一频段f也可以理解为一个子载波集合。示例性地，f＝{f1,f2,…,fP}。其中，fp可以表示一个子载波，其中p＝1,2,…,P。换言之，p可以是从1取自P的整数。
第一频段对应的测距响应函数可以表示为公式4-1。
其中，τ可以表示时延，j可以表示虚数，AF(τ)可以表示第一频段的P个子载波对单个点目标测距，得到的响应函数。
示例性地，假设N个频段的带宽相同，且N个频段中任意两个相邻频段之间的间隔相同。例如，假设N个频段中的第一个对应的子载波集合为f1＝{f1,f2,…,fP}，则N个频段中的第n个对应的子载波集合为fn＝{f1+(n-1)(B+Bgap),f2+(n-1)(B+Bgap),…,fP+(n-1)(B+Bgap)}。这样，N个频段对应的测距响应函数可以表示为公式4-2。
其中，B可以表示N个频段中任意一个频段的带宽，Bgap可以表示N个频段中任意两个相邻频段之间的间隔。AF′(τ)可以表示在N个频段的N*P个子载波对单个点目标测距，得到的响应函数。其他参数的描述参见前文，不再赘述。公式4-2可以变形为公式4-3。
公式4-3可以理解为两个因数相乘得到AF′(τ)。示例性地，本申请实施例定义两个因数分别满足公式4-4和公式4-5。
可以理解的是，根据上述定义，公式4-3还可以满足公式4-6。
AF′(τ)＝AF1(τ)*AF2(τ)(公式4-6)
其中，“*”表示乘法。“*”可以省略或替换为“×”或“·”等符号。
图7是本申请实施例提供的一些频段或频率的示意图。
图8是本申请实施例提供的另一些测距响应函数的示意图。图8中的(a)至(c)分别示出了图7中的(a)至(c)对应的测距响应函数。下面结合图7和图8对N个频段的测距响应函数进行分析。
图7中的(a)示出了一个频段(假设是频段1)。图8中的(a)示出了一个频段的测距函数响应的示意图。其中，响应函数的第一个过零点的横坐标为c/B。假设0≤k≤1，那么，随着k的取值变化，kc/B可以在主瓣的右半部分滑动。具体而言，kc/B可以在上述第一个过零点和幅值为0的原点之间滑动。
图7中的(b)示出了N个频率。示例性地，N个频段中的每个频段取一个频率，可以得到N个频率。例如，N个频率可以分别是N个频段的中心频率、起始频率或终止频率。N个频率中两个相邻频率之间的距离为B+Bgap。图8中的(b)示出了N个频率的测距函数响应的示意图。如图8中的(b)所示，在测距响应函数的图像中，两个栅瓣之间的距离为其中，Bgap也可以表示为Bspacing。
图7中的(c)示出了N个频段。图8中的(c)示出了N个频段的测距响应函数的示意图。其中，短划线(dashed line)表示N个频段的测距响应函数，即，AF′(τ)；实线(solid line)表示一个频段的测距响应函数，即AF1(τ)，与图8中的(a)一致；点划线(dotted dashed line)表示N个频率的测距响应函数，即，AF2(τ)，与图8中的(b)一致。
本申请实施例定义参考点的位置(即，横坐标)为即AF2(τ)的测距响应函数的第一个栅瓣。该参考点的幅值(即，纵坐标)经过AF1(τ)的加权后，该参考点的幅值是AF′(τ)中测距旁瓣性能最差的，即旁瓣水平最高的。该参考点的旁瓣水平可以称为RPSL。因此，只需要将RPSL控制在一定阈值以内，就可以保障N个频段的测距旁瓣性能。
因此，本申请实施例的一种示例性的处理思路为：约束第一比值，使得测距分辨率增加的同时，确保RPSL不超过给定阈值δ。
假设期望的RPSL或RPSL的阈值为δdB。那么，根据δdB，在AF′(τ)的主瓣上找出其对应的坐标。即，该坐标满足公式4-7。
公式4-7可以理解为，在纵坐标为δdB的情况下，主瓣上的横坐标为例如，参见图8中的(c)，0～-10dB之间的横线可以表示RPSL为δdB，与上述横线交叉的垂线可以表示RPSL为δdB的点在主瓣上的横坐标。图8中的(c)仅为示例，本申请对此不限定，δdB也可以取自0～-10dB以外的数值。进一步地，可以得到公式4-8。
公式4-7进一步简化，可以得到前述公式1-1和/或公式1-2。其中，k与δ相关。
其中，k可以看做δ的函数，根据AF1(τ)的表达式和函数图像，可以得到公式3-1和/或公式3-2。
下面，介绍第一信息指示N个频段的一些可能的实现方式。
在一些可能的实现方式中，该第一信息包括该N个频段的索引。
N个频段的索引可以理解为N个频段中每个频段的索引，也可以理解为N个频段的集合的索引。例如，N个频段包括频段1、频段2和频段3。作为一个示例，N个频段的索引可以包括索引1、索引2和索引3，其中，索引1对应于频段1，索引2对应于频段2，索引3对应于频段3，换言之，索引1是频段1的索引，索引2是频段2的索引，索引3是频段3的索引。作为另一个示例，N个频段的索引可以包括索引4，索引4对应于频段1、频段2和频段3；换言之，索引4可以是频段1、频段2和频段3的索引；换言之，索引4是一个集合的索引，该集合包括频段1、频段2和频段3。
可选地，S610包括：第一装置确定N个频段的索引。可选地，方法600还包括：第二装置根据第一信息，确定N个频段的索引。可选地，方法600还包括：第二装置根据N个频段的索引，确定N个频段。
索引(index)也可以替换为编号(number)、标识(identification，identity，或identifier，ID)，本申请不限定索引的具体名称。
基于上述方案，第一信息可以包括N个频段的索引。这样，第二装置可以根据N个频段的索引快速确定N个频段，提高了第二装置确定N个频段的效率。
在一些可能的实现方式中，该第一信息包括第一参数。上述方案可以替换为：第一信息包括第一参数的指示信息。其中，指示信息可以直接指示信息，例如，第一信息包括第一参数。指示信息可以是间接指示信息，例如，第一参数的指示信息为第一参数的标识，这样，第二装置可以根据该标识，确定第一参数。
例如，第一信息可以包括k的倒数、δ、或PSLR中的至少一项。
在另一些可能的实现方式中，该第一信息包括第二指示信息，该第二指示信息用于指示第一参数。例如，第二指示信息可以包括k、δ、或PSLR中的至少一项。其中，k可以指示k的倒数，即第一参数的一种表现形式。
可选地，S610包括：第一装置根据第一参数，确定N个子载波。可选地，方法600还包括：第二装置根据第一信息，确定第一参数。可选地，方法600还包括：第二装置根据第一参数，确定N个子载波。例如，第二装置可以根据第一参数和第一条件，确定N个子载波。
在一些示例中，N个子载波可以由第一比值(或第三比值)唯一确定。这样，第一信息可以仅包括第一参数。第二装置可以根据该第一参数，唯一确定N个频段。
在另一些示例中，N个子载波虽然不可以由第一比值(或第三比值)唯一确定，但是通过信令指示、预定义或预配置的规则，排除了其他的可能，使得N个子载波可以被唯一确定。这样，第一信息可以仅包括第一参数。第二装置可以根据该第一参数和信令(或者预定义或预配置的规则)，唯一确定N个频段。
基于上述方案，第一信息可以包括第一参数。这样，第一信息的接收端可以根据第一参数确定N个子载波。上述方案中，第一信息携带的内容较少，从而能够介绍信令开销。
在一些实现方式中，该第一信息还包括第一指示信息，该第一指示信息用于指示该N个频段的起始频率、N、或者该第一频段的带宽中的至少一项。
第一指示信息可以是直接指示信息。例如，第一指示信息可以包括该N个频段的起始频率、N、或者该第一频段的带宽中的至少一项。第一指示信息可以是间接指示信息。例如，第二装置可以根据第一指示信息，确定N个频段的起始频率、N、或者该第一频段的带宽中的至少一项。
其中，第一指示信息用于指示N，可以理解为第一指示信息用于指示N个频段的数量。
起始频率可以是N个频段中频率最小的频段的最小频率。其中，频率最小的频段可以理解为最大频率最小的频段、中心频率最小的频段、或者最小频率最小的频段。在一些可能的实现方式中，N个频段相互不重叠，因此，上述三种描述可以认为是等价的。示例性地，参见图4，起始频率可以是频段1的最小频率，即频段1在坐标轴上最左侧的点对应的频率。但是本申请对起始频率的定义不做限定，起始频率也可以是其他位置。
示例性地，第一指示信息可以指示该N个频段的起始频率、N、或者该第一频段的带宽中的至少一项。N个频段的起始频率、N和该第一频段的带宽中未被指示的部分可以是预定义或预配置的，也可以是其他信息指示的。
作为一个示例，第一信息可以包括第一参数和第一指示信息。可选地，方法600还包括：第二装置根据第一参数和第一指示信息，确定N个频段。例如，第二装置可以根据第一参数、第一指示信息和第一条件，确定N个频段。
基于上述方案，第一指示信息可以指示多种信令组合，使得第一信息的接收端可以确定N个频段。
在一些可能的实现方式中，第一条件可以是预配置或预定义的。在另一些可能的实现方式中，第一条件可以是由信令指示的。例如，第一装置可以向第二装置发送第二信息。该第二信息可以用于指示第一条件。
在一些实现方式中，该方法600还包括：S640，第一装置根据该N个频段，发送或接收该第一感知信号。
第一装置可以不仅是感知的控制端，也是感知信号的发送端或接收端。
下面，介绍控制端、发送端和接收端的一些可能实现方式的举例。
图9是本申请实施例提供的另一种感知资源指示方法700的示意性流程图。方法700可以与方法600结合。图9中，虚线表示的操作为方法700中可选的操作。方法700中，第一装置为控制装置。方法700以第二装置为发送装置，第三装置为接收装置为例。需要说明的是，对于第二装置为接收装置，第三装置为发送装置的实施例，只需要将方法700中第二装置和第三装置互换即可，具体不再赘述。
S705，第一装置向第二装置发送第一查询信息。第二装置接收来自第一装置的第一查询信息。
可选地，第一查询信息用于查询是否支持多频段感知功能。多频段感知功能可以是在多个频段上进行感知的能力。可选地，第一查询信息用于查询(或者请求)第二装置支持的频点和带宽。
本申请不限定第一查询信息的具体名称，第一查询信息还可以称为请求信息或具有其他名称。
S710，第一装置接收来自第二装置的第一反馈信息。第二装置向第一装置发送第一反馈信息。
可选地，第一反馈信息用于指示第二装置支持多频段感知功能。可选地，第一反馈信息用于指示第二装置支持的频点和带宽。
本申请不限定第一反馈信息的具体名称，第一反馈信息还可以称为响应信息或具有其他名称。
需要说明的是，S710可以是响应于S705执行的，但是本申请对此不限定，S710也可以不依赖于S705而执行。例如，第二装置可以定期地向第一装置发送第一反馈信息。
S715，第一装置向第三装置发送第二查询信息。第三装置接收来自第一装置的第二查询信息。
可选地，第二查询信息用于查询是否支持多频段感知功能。可选地，第二查询信息用于查询(或者请求)第三装置支持的频点和带宽。
本申请不限定第二查询信息的具体名称，第二查询信息还可以称为请求信息或具有其他名称。
S720，第一装置接收来自第三装置的第二反馈信息。第三装置向第一装置发送第二反馈信息。
可选地，第二反馈信息用于指示第三装置支持多频段感知功能。可选地，第二反馈信息用于指示第三装置支持的频点和带宽。
示例性地，S720可以是响应于S715执行的，但是本申请对此不限定，S720也可以不依赖于S715而执行。例如，第三装置可以定期地向第一装置发送第二反馈信息。
此外，本申请不限定S705、S710、S715、S720的执行顺序。
在一些可能的实现方式中，方法700还包括S610。
在一些可能的实现方式中，方法700还包括S620。在一些可能的实现方式中，方法700还包括：(S740)第一装置向第三装置发送第一信息。对应地，第三装置接收来自第一装置的第一信息。第一信息的描述参见前述关于第一信息的描述，例如参见S620，此处不赘述。
在一些可能的实现方式中，方法700还包括S630。S630可以包括：第二装置在N个频段上，向一个或多个目标发送第一感知信号。
S750，第三装置在N个频段上，接收第一感知信号的回波信号。例如，该第一感知信号可以是经过多个目标的回波信号。也就是说，结合S630和S750的方案可以理解为，第二装置向第三装置发送第一感知信号，该第一感知信号经过多个目标，形成回波信号。该回波信号射向第三装置。
S760，第三装置根据接收到的第一感知信号的回波信号，确定感知结果。
S770，第三装置向第一装置发送指示感知结果的信息。对应地，第一装置接收来自第三装置的指示感知结果的信息。
可选地，指示感知结果的信息可以是直接指示信息，即指示感知结果的信息包含感知结果的信息；或者，指示感知结果的信息可以是间接指示信息，第一装置可以根据该指示感知结果的信息确定感知结果的信息。
图10是本申请实施例提供的又一种感知资源指示方法800的示意性流程图。方法800可以与方法600或方法700结合。方法800中，第一装置为控制装置和发送装置，第二装置为接收装置。图10中，虚线表示的操作为方法800中可选的操作。
在一些可能的实现方式中，方法800可以包括S705、S710、S610和S620。
在一些可能的实现方式中，方法800还包括S630和S640。
可选地，S640包括：第一装置在N个频段上，向一个或多个目标发送第一感知信号。对应地，S630可以包括：第二装置在N个频段上，接收第一感知信号的回波信号。
可选地，S640包括：第一装置在N个频段上，向一个或多个目标发送第三感知信号。对应地，S630可以包括：第二装置在N个频段上，接收第三感知信号的回波信号。其中，第三感知信号的回波信号为第一感知信号。
S820，第二装置根据接收到的感知信号，确定感知结果。例如，第二装置根据接收到的第一感知信号的回波信号(或者，第三感知信号的回波信号，即第一感知信号)，确定感知结果。
S830，第二装置向第一装置发送指示感知结果的信息。对应地，第一装置接收来自第二装置的指示感知结果的信息。
可选地，指示感知结果的信息可以是直接指示信息，即指示感知结果的信息包含感知结果的信息；或者，指示感知结果的信息可以是间接指示信息，第一装置可以根据该指示感知结果的信息确定感知结果的信息。
图11是本申请实施例提供的再一种感知资源指示方法900的示意性流程图。方法900可以与方法600或方法700结合。方法900中，第一装置为控制装置和接收装置，第二装置为发送装置。图11中，虚线表示的操作为方法900中可选的操作。
在一些可能的实现方式中，方法900可以包括S705、S710、S610和S620。
在一些可能的实现方式中，方法900还包括S630和S640。
可选地，S630包括：第二装置在N个频段上，向一个或多个目标发送第一感知信号。对应地，S640包括：第一装置在N个频段上，接收第一感知信号的回波信号。
可选地，S630包括：第二装置在N个频段上，向一个或多个目标发送第三感知信号。对应地，S640包括：第一装置在N个频段上，接收第三感知信号的回波信号。其中，第三感知信号的回波信号为第一感知信号。
S920，第一装置根据接收到的感知信号，确定感知结果。例如，第一装置根据接收到的第一感知信号的回波信号(或者，第三感知信号的回波信号，即第一感知信号)，确定感知结果。
在一些可能的实现方式中，第一比值为取整后的整数。其中，取整可以包括向上取整、向下取整或环绕(round)取整。本申请限定取整的具体形式。
在一些可能的场景中，第一比值无法灵活调整。例如，在给定带宽内，频域资源可能被划分成了多个离散的频段(例如，CC)。第一装置仅能从多个离散的频段中选择N个频段。例如，第一装置根据第一比值所确定的N个频段必须属于上述多个离散的频段中。这样，任意的第一比值不一定能够对应N个频段，而满足一定条件的第一比值才能对应N个频段。
示例性地，第一比值可以与表1、表2、表3、公式1-1、或公式1-2中的尽可能接近。例如，对进行表1、表2、表3、公式1-1、或公式1-2中的取整，得到第一比值。
图12是本申请实施例提供的一些频段的示意图。
示例性地，参见图12，假设在给定的带宽BT可以被离散地分成Q个频段(例如，CC)，Q可以是大于1的整数。其中，每个频段的带宽为BQ。这样，Q个频段的带宽满足：Q*BQ≤BT。
例如，给定参数δ(或PSLR)，可以通过公式3-1或公式3-2(或者，公式2-1或公式2-2)计算参数k，继而根据公式1-1或公式1-2确定又例如，给定参数δ(或PSLR)，可以通过表3(或者，表2)确定根据，可以从图12示出的Q个频段中选择尽可能满足上述确定的的N个频段。
在一些示例中，假设BQ＝20MHz，Q＝20，BT＝400MHz。
例如，假设δ＝-8dB，那么，根据公式3-1或公式3-2计算可得，参数k为0.678。根据公式1-1或公式1-2计算可得，为2.106。或者，根据表3查表可得，为2.106。这样，假设每间隔2个频段选择一个频段，得到的N个频段的第一比值为2，与上述2.106最接近。
又例如，假设δ＝-13.3dB，那么，根据公式3-1或公式3-2计算可得，参数k为0.814。根据公式1-1或公式1-2计算可得，为4.376。或者，根据表3查表可得，为4.376。这样，假设每间隔4个频段选择一个频段，得到的N个频段的第一比值为4，与上述4.376最接近。
基于上述方案，第一比值可以是根据第一条件得到的整数。这样，第一比值对应的N个频段适用于给定带宽中离散分布的频段，从而提高了方案的适用性。
在另一些可能的实现方式中，第一比值可以是整数。例如，第一比值可以是表4、表5、表6、公式1-3、或公式1-4中的
示例性地，上述表1至表3可以分别替换为表4至表6。
表4
表5
表6

表4至表6的其他描述参见表1至表3的描述，不再赘述。
示例性地，公式1-1和公式1-2可以分别替换为公式1-3和公式1-4。
在一些实现方式中，该N个频段包括第七频段和第八频段，该第七频段与该第八频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
其中，第七频段和第八频段可以不同。第七频段与第八频段的起始频率、中心频率、或频率范围中的至少一项不同。
例如，第七频段可以是第一频段，第八频段可以是N个频段中除第一频段之外的一个频段。又例如，第八频段可以是第一频段，第七频段可以是N个频段中除第一频段之外的一个频段。
第七频段和第八频段可以是相邻的频段，也可以是不相邻的频段，本申请对此不限定。
其中，子载波间隔(subcarrier spacing)可以是N个频段中一个频段的多个子载波中的两个相邻子载波之间的间隔。或者，子载波间隔可以是N个频段中一个频段的频域资源的子载波间隔。
在一些示例中，第七频段可以与第八频段的子载波间隔相同。在另一些示例中，N个频段的子载波间隔相同。本申请对子载波间隔的具体名称不做限定，子载波间隔还可以有其他名称。
其中，循环前缀(cyclic prefix，CP)长度也可以称为CP配置。CP长度可以是N个频段中一个频段的频域资源的CP长度。CP长度可以用CP值指示。
其中，频率参考点也可以称为点A(point A)。频率参考点可以指示参考资源块的绝对频率。该参考资源块的最小子载波也可以称为频率参考点(或称为point A)。N个频段可以具有公共的频率参考点。
示例性地，N个频段可以属于同一个感知频率层(sensing frequency layer，SFL)。示例性地，N个频段可以属于同一个资源集(resource set)。
SFL是本申请实施例新提出的概念。SFL可以包括一个或多个资源集。其中，不同的资源集可以配置不同的带宽。但是本申请对此不做限定，不同的资源集也可以配置相同的带宽。
一个资源集可以包括多个资源。示例性地，一个资源集中的N个资源一一对应于N个频段。例如，一个资源集中的N个资源分别包括N个频段。其中，属于同一个资源集的N个频段可以进行相干合成。但是，本申请对此不限定，例如，N个频段可以属于不同的资源集。
基于上述方案，N个频段可以具有相同的子载波间隔、循环前缀长度或频率参考点，参数配置简单，便于实现。
下文对本申请方法实施例对应的装置实施例进行介绍。下文仅对装置做简要介绍，方案具体实现步骤和细节可参考前文方法实施例。
为了实现本申请提供的方法中的各功能，通信装置可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
图13是本申请实施例的一种通信装置1000的示意框图。通信装置1000包括处理器1010和通信接口1020。可选地，处理器1010和通信接口1020可以通过总线相互连接。通信装置1000可以是第一装置，也可以是第二装置。示例性地，第一装置可以是终端设备或网络设备；第二装置可以是终端设备或网络设备。通信装置1000也可以称为感知装置。
可选地，通信装置1000还可以包括存储器1040。存储器1040包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、高速缓存(cache)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、同步动态随机存取存储器(synchronous dynamic random access memory，SDRAM)、硬盘(hard disk drive，HDD)、固态硬盘(solid-state drive，SSD)或便携式只读存储器(compact disc read-only memory，CD-ROM)，该存储器1040用于存储相关指令和/或数据。存储器1040可以与处理器1010集成在一起，或者分离设置。
处理器1010可以是一个或多个中央处理器(central processing unit，CPU)。在处理器1010是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。其中，处理器1010可以是信号处理器、芯片，或其他可以实现本申请方法的集成电路，或者前述处理器、芯片或集成电路中的用于处理功能的部分电路。另外，通信接口1020也可以为输入输出接口，输入输出接口用于信号或数据的输入或输出，也可以是输入输出电路。
示例性地，通信装置1000为第一装置，处理器1010用于执行以下操作：确定N个频段，N为大于1的整数，该N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，该第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，该第二频段和该第三频段为该N个频段中任意两个相邻频段，该第二频段的最大频率小于该第三频段的最小频率，该第一比值满足第一条件，该第一频段为：该第二频段，或该第三频段，或该N个频段中除该第二频段和该第三频段之外的频段；发送第一信息，该第一信息用于指示该N个频段，该N个频段用于发送或接收第一感知信号，该第一条件与第一参数相关，第一参数用于指示该第一感知信号的测距旁瓣性能的阈值。
示例性地，通信装置1000为第二装置，处理器1010用于执行以下操作：接收第一信息，该第一信息用于指示N个频段，N为大于1的整数，该N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，该第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，该第二频段和该第三频段为该N个频段中任意两个相邻频段，该第二频段的最大频率小于该第三频段的最小频率，该第一比值满足第一条件，该第一频段为：该第二频段，或该第三频段，或该N个频段中除该第二频段和该第三频段之外的频段；根据该N个频段，发送或接收第一感知信号，该第一条件与第一参数相关，第一参数用于指示该第一感知信号的测距旁瓣性能的阈值。
上述内容仅作为示例性描述。通信装置1000是将负责执行前述方法实施例中第一装置、或第二装置相关的方法或者步骤。
一种可能的实现中，通信接口1020可以为收发器。收发器可以包括发送器和接收器，发送器用于执行发送操作，接收器用于执行接收操作。例如，处理器1010用于控制收发器进行信号的接收和/或发送。
一种可能的实现中，通信接口1020还可以为通信电路、管脚、输入输出接口、总线等。
需要说明的是，通信装置1000可以包括发送器，而不包括接收器。或者，通信装置1000可以包括接收器，而不包括发送器。具体可以视通信装置1000执行的上述方案中是否包括发送动作和接收动作。
上述描述仅是示例性描述。具体内容可以参见上述方法实施例所示的内容。图13中的各个操作的实现还可以对应参照图6至图12所示的方法实施例的相应描述。
例如，通信装置1000可以用于执行图6至图12示出的方案。
示例性地，通信装置1000为第一装置，通信接口1020可以用于发送第一信息。
示例性地，通信装置1000为第二装置，通信接口1020可以用于接收第一信息。
对于其他实现方式具体可以参阅前述图6至图12所示的实施例的详细介绍，这里不再赘述。应理解，各部件执行上述相应过程的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
图14是本申请实施例的另一种通信装置1100的示意框图。通信装置1100可以为第一装置或第二装置，也可以为第二装置、或者第一装置中的芯片或模块，用于实现图6至图12所示的实施例涉及的方法，具体请参考上述方法实施例中的相关介绍。通信装置1100也可以称为感知装置。
通信装置1100包括收发单元1110。下面对该收发单元1110进行示例性地介绍。
收发单元1110可以包括发送单元和接收单元。发送单元用于执行通信装置的发送动作，接收单元用于执行通信装置的接收动作。为便于描述，本申请实施例将发送单元与接收单元合为一个收发单元。在此做统一说明，后文不再赘述。收发单元1110可以实现相应的通信功能。收发单元1110还可以称为通信接口或通信模块。
需要说明的是，通信装置1100可以包括发送单元，而不包括接收单元。或者，通信装置1100可以包括接收单元，而不包括发送单元。具体可以视通信装置1100执行的上述方案中是否包括发送动作和接收动作。
示例性地，收发单元1110用于发送第一信息等。
可选地，通信装置1100还可以包括处理单元1120，其用于执行通信装置1100涉及处理、协调等步骤的内容。
示例性地，收发单元1110用于接收第一信息等。
可选地，通信装置1100还可以包括处理单元1120，其用于执行通信装置1100涉及处理、协调等步骤的内容。
上述所述内容仅作为示例性描述。通信装置1100将负责执行前述方法实施例中相关的方法或者步骤。
可选地，通信装置1100还包括存储单元1130，该存储单元1130用于存储用于执行前述方法的程序或者代码。或者说，存储单元1130可以用于存储指令和/或数据，处理单元1120可以读取存储单元1130中的指令和/或数据，以使得通信装置1100实现前述方法实施例。例如，通信装置1100可以用于执行图6至图12示出的方案。
示例性地，处理单元1120可以用于确定N个频段；收发单元1110可以用于发送第一信息，该第一信息用于指示该N个频段。
示例性地，收发单元1110可以用于接收第一信息；处理单元1120可以用于根据该N个频段进行感知。
对于其他实现方式具体可以参阅前述图6至图12所示的实施例的详细介绍，这里不再赘述。应理解，各部件执行上述相应过程的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
当图13中的通信装置1000为芯片时，通信接口1020可以是该芯片的收发器、输入输出电路或通信接口。处理器1010可以是该芯片上集成的处理器、或者微处理器、或者集成电路。上述方法实施例中第一装置、或第二装置的发送操作可以理解为芯片的输出，上述方法实施例中第一装置、或第二装置的接收操作可以理解为芯片的输入。
当图14中的通信装置1100为芯片时，收发单元1110可以是该芯片的收发器、输入输出电路或通信接口。处理单元1120可以是该芯片上集成的处理器、或者微处理器、或者集成电路。上述方法实施例中第一装置、或第二装置的发送操作可以理解为芯片的输出，上述方法实施例中第一装置、或第二装置的接收操作可以理解为芯片的输入。
本申请还提供了一种芯片，包括处理器，用于从存储器中调用并运行所述存储器中存储的指令，使得安装有所述芯片的感知装置执行上述各示例中的方法。
本申请还提供另一种芯片，包括：输入接口、输出接口、处理器，所述输入接口、输出接口以及所述处理器之间通过内部连接通路相连，所述处理器用于执行存储器中的代码，当所述代码被执行时，所述处理器用于执行上述各示例中的方法。可选地，该芯片还包括存储器，该存储器用于存储计算机程序或者代码。可选地，存储器可以位于芯片之外。
本申请还提供了一种处理器，用于与存储器耦合，用于执行上述各实施例中任一实施例中涉及感知装置或通信装置的方法和功能，或者，用于执行上述各实施例中任一实施例中涉及第一装置或第二装置的方法和功能。
在本申请的另一实施例中提供一种包含计算机程序或指令的计算机程序产品，当该计算机程序产品在计算机上运行时，前述实施例的方法得以实现。
本申请还提供一种计算机程序，当该计算机程序在计算机中被运行时，前述实施例的方法得以实现。
在本申请的另一实施例中提供一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，该计算机程序被计算机执行时实现前述实施例所述的方法。
本申请还提供一种感知系统，该感知系统包括第一装置和第二装置。第一装置和第二装置分别用于执行前述实施例中第一装置和第二装置所执行的方法。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (55)

  1. 一种感知资源指示方法，其特征在于，包括：
    确定N个频段，N为大于1的整数，所述N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，所述第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，所述第二频段和所述第三频段为所述N个频段中任意两个相邻频段，所述第二频段的最大频率小于所述第三频段的最小频率，所述第一比值满足第一条件，所述第一频段为：所述第二频段，或所述第三频段，或所述N个频段中除所述第二频段和所述第三频段之外的频段；
    发送第一信息，所述第一信息用于指示所述N个频段，所述N个频段用于发送或接收第一感知信号，所述第一条件与第一参数相关，所述第一参数用于指示所述第一感知信号的测距旁瓣性能的阈值。
  2. 根据权利要求1所述的方法，其特征在于，所述第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能的阈值，所述第一比值大于第二比值；其中，
    所述第二感知信号在所述M个频段上被发送或接收，所述M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，所述第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，所述第五频段和所述第六频段为所述M个频段中任意两个相邻频段，所述第五频段的最大频率小于所述第六频段的最小频率，所述第四频段的带宽等于所述第一频段的带宽，所述第四频段为：所述第五频段，或所述第六频段，或所述M个频段中除所述第五频段和所述第六频段之外的频段。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一条件包括以下至少一项：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数为所述第一参数。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一条件包括：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数为所述第一参数。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第一条件包括以下至少一项：

    其中，PSLR表示峰值旁瓣比，dB表示分贝，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数和PSLR为所述第一参数。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述第一条件包括：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数和PSLR为所述第一参数，PSLR表示峰值旁瓣比，PSLR的参考点为c表示光速，M＝B/△，其中，△表示所述第一频段的子载波间隔。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第一信息包括所述N个频段的索引。
  8. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第一信息包括所述第一参数。
  9. 根据权利要求8所述的方法，其特征在于，所述第一信息还包括第一指示信息，所述第一指示信息用于指示所述N个频段的起始频率、N、或者所述第一频段的带宽中的至少一项。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述第一比值是取整后的整数。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，所述N个频段包括第一频段和第二频段，所述第一频段与所述第二频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述N个频段是N个分量载波CC。
  13. 根据权利要求1至12中任一项所述的方法，其特征在于，所述方法还包括：
    根据所述N个频段，发送或接收所述第一感知信号。
  14. 一种感知资源指示方法，其特征在于，包括：
    接收第一信息，所述第一信息用于指示N个频段，N为大于1的整数，所述N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，所述第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，所述第二频段和所述第三频段为所述N个频段中任意两个相邻频段，所述第二频段的最大频率小于所述第三频段的最小频率，所述第一比值满足第一条件，所述第一频段为：所述第二频段，或所述第三频段，或所述N个频段中除所述第二频段和所述第三频段之外的频段；
    根据所述N个频段，发送或接收第一感知信号，所述第一条件与第一参数相关，所述第一参数用于指示所述第一感知信号的测距旁瓣性能的阈值。
  15. 根据权利要求14所述的方法，其特征在于，所述第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能的阈值，所述第一比值大于第二比值；其中，
    所述第二感知信号在所述M个频段上被发送或接收，所述M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，所述第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，所述第五频段和所述第六频段为所述M个频段中任意两个相邻频段，所述第五频段的最大频率小于所述第六频段的最小频率，所述第四频段的带宽等于所述第一频段的带宽，所述第四频段为：所述第五频段，或所述第六频段，或所述M个频段中除所述第五频段和所述第六频段之外的频段。
  16. 根据权利要求14或15所述的方法，其特征在于，所述第一条件包括以下至少一项：

    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数为所述第一参数。
  17. 根据权利要求14至16中任一项所述的方法，其特征在于，所述第一条件包括：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数为所述第一参数。
  18. 根据权利要求14至17中任一项所述的方法，其特征在于，所述第一条件包括以下至少一项：
    其中，PSLR表示峰值旁瓣比，dB表示分贝，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数和PSLR为所述第一参数。
  19. 根据权利要求14至18中任一项所述的方法，其特征在于，所述第一条件包括：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数和PSLR为所述第一参数，PSLR表示峰值旁瓣比，PSLR的参考点为c表示光速，M＝B/△，其中，△表示所述第一频段的子载波间隔。
  20. 根据权利要求14至19中任一项所述的方法，其特征在于，所述第一信息包括所述N个频段的索引。
  21. 根据权利要求14至19中任一项所述的方法，其特征在于，所述第一信息包括所述第一参数。
  22. 根据权利要求21所述的方法，其特征在于，所述第一信息还包括第一指示信息，所述第一指示信息用于指示所述N个频段的起始频率、N、或者所述第一频段的带宽中的至少一项。
  23. 根据权利要求14至22中任一项所述的方法，其特征在于，所述第一比值是取整后的整数。
  24. 根据权利要求14至23中任一项所述的方法，其特征在于，所述N个频段包括第一频段和第二频段，所述第一频段与所述第二频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
  25. 根据权利要求14至24中任一项所述的方法，其特征在于，所述N个频段是N个分量载波CC。
  26. 一种感知装置，其特征在于，包括：
    处理单元，用于确定N个频段，N为大于1的整数，所述N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，所述第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，所述第二频段和所述第三频段为所述N个频段中任意两个相邻频段，所述第二频段的最大频率小于所述第三频段的最小频率，所述第一比值满足第一条件，所述第一频段为：所述第二频段，或所述第三频段，或所述N个频段中除所述第二频段和所述第三频段之外的频段；
    收发单元，用于发送第一信息，所述第一信息用于指示所述N个频段，所述N个频段用于发送或接收第一感知信号，所述第一条件与第一参数相关，所述第一参数用于指示所述第一感知信号的测距旁瓣性能的阈值。
  27. 根据权利要求26所述的装置，其特征在于，所述第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能的阈值，所述第一比值大于第二比值；其中，
    所述第二感知信号在所述M个频段上被发送或接收，所述M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，所述第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，所述第五频段和所述第六频段为所述M个频段中任意两个相邻频段，所述第五频段的最大频率小于所述第六频段的最小频率，所述第四频段的带宽等于所述第一频段的带宽，所述第四频段为：所述第五频段，或所述第六频段，或所述M个频段中除所述第五频段和所述第六频段之外的频段。
  28. 根据权利要求26或27所述的装置，其特征在于，所述第一条件包括以下至少一项：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数为所述第一参数。
  29. 根据权利要求26至28中任一项所述的装置，其特征在于，所述第一条件包括：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数为所述第一参数。
  30. 根据权利要求26至29中任一项所述的装置，其特征在于，所述第一条件包括以下至少一项：
    其中，PSLR表示峰值旁瓣比，dB表示分贝，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数和PSLR为所述第一参数。
  31. 根据权利要求26至30中任一项所述的装置，其特征在于，所述第一条件包括：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数和PSLR为所述第一参数，PSLR表示峰值旁瓣比，PSLR的参考点为c表示光速，M＝B/△，其中，△表示所述第一频段的子载波间隔。
  32. 根据权利要求26至31中任一项所述的装置，其特征在于，所述第一信息包括所述N个频段的索引。
  33. 根据权利要求26至31中任一项所述的装置，其特征在于，所述第一信息包括所述第一参数。
  34. 根据权利要求33所述的装置，其特征在于，所述第一信息还包括第一指示信息，所述第一指示信息用于指示所述N个频段的起始频率、N、或者所述第一频段的带宽中的至少一项。
  35. 根据权利要求26至34中任一项所述的装置，其特征在于，所述第一比值是取整后的整数。
  36. 根据权利要求26至35中任一项所述的装置，其特征在于，所述N个频段包括第一频段和第二频段，所述第一频段与所述第二频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
  37. 根据权利要求26至36中任一项所述的装置，其特征在于，所述N个频段是N个分量载波CC。
  38. 根据权利要求26至37中任一项所述的装置，其特征在于，所述收发单元还用于：
    根据所述N个频段，发送或接收所述第一感知信号。
  39. 一种感知资源指示装置，其特征在于，包括：
    收发单元，用于接收第一信息，所述第一信息用于指示N个频段，N为大于1的整数，所述N个频段中第一频段的带宽与第一间隔之间的比值为第一比值，所述第一间隔为第二频段的最大频率与第三频段的最小频率之间的间隔，所述第二频段和所述第三频段为所述N个频段中任意两个相邻频段，所述第二频段的最大频率小于所述第三频段的最小频率，所述第一比值满足第一条件，所述第一频段为：所述第二频段，或所述第三频段，或所述N个频段中除所述第二频段和所述第三频段之外的频段；
    所述收发单元还用于根据所述N个频段，发送或接收第一感知信号，所述第一条件与第一参数相关，所述第一参数用于指示所述第一感知信号的测距旁瓣性能的阈值。
  40. 根据权利要求39所述的装置，其特征在于，所述第一感知信号的测距旁瓣性能的阈值小于第二感知信号的测距旁瓣性能的阈值，所述第一比值大于第二比值；其中，
    所述第二感知信号在所述M个频段上被发送或接收，所述M个频段中第四频段的带宽与第二间隔之间的比值为第二比值，M为大于1的整数，所述第二间隔为第五频段的最大频率与第六频段的最小频率之间的间隔，所述第五频段和所述第六频段为所述M个频段中任意两个相邻频段，所述第五频段的最大频率小于所述第六频段的最小频率，所述第四频段的带宽等于所述第一频段的带宽，所述第四频段为：所述第五频段，或所述第六频段，或所述M个频段中除所述第五频段和所述第六频段之外的频段。
  41. 根据权利要求39或40所述的装置，其特征在于，所述第一条件包括以下至少一项：

    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数为所述第一参数。
  42. 根据权利要求39至41中任一项所述的装置，其特征在于，所述第一条件包括：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数为所述第一参数。
  43. 根据权利要求39至42中任一项所述的装置，其特征在于，所述第一条件包括以下至少一项：
    其中，PSLR表示峰值旁瓣比，dB表示分贝，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数和PSLR为所述第一参数。
  44. 根据权利要求39至43中任一项所述的装置，其特征在于，所述第一条件包括：
    其中，Bgap表示所述第一间隔，B表示所述第一频段的带宽，k的倒数和PSLR为所述第一参数，PSLR表示峰值旁瓣比，PSLR的参考点为c表示光速，M＝B/△，其中，△表示所述第一频段的子载波间隔。
  45. 根据权利要求39至44中任一项所述的装置，其特征在于，所述第一信息包括所述N个频段的索引。
  46. 根据权利要求39至44中任一项所述的装置，其特征在于，所述第一信息包括所述第一参数。
  47. 根据权利要求46所述的装置，其特征在于，所述第一信息还包括第一指示信息，所述第一指示信息用于指示所述N个频段的起始频率、N、或者所述第一频段的带宽中的至少一项。
  48. 根据权利要求39至47中任一项所述的装置，其特征在于，所述第一比值是取整后的整数。
  49. 根据权利要求39至48中任一项所述的装置，其特征在于，所述N个频段包括第一频段和第二频段，所述第一频段与所述第二频段的子载波间隔、循环前缀长度、或频率参考点中的至少一项相同。
  50. 根据权利要求39至49中任一项所述的装置，其特征在于，所述N个频段是N个分量载波CC。
  51. 一种感知装置，其特征在于，包括：处理器，所述处理器用于，通过执行计算机程序或指令，使得权利要求1至13中任一项所述的方法被执行，或者，使得执行权利要求14至25中任一项所述的方法被执行。
  52. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序或指令，当所述计算机程序或所述指令被运行时，使得权利要求1至13中任一项所述的方法被实现，或者，使得权利要求14至25中任一项所述的方法被实现。
  53. 一种计算机程序产品，其特征在于，包括计算机程序或指令，当所述计算机程序或指令被运行时，如权利要求1至13中任一项所述的方法被实现，或者，如权利要求14至25中任一项所述的方法被实现。
  54. 一种芯片，其特征在于，包括：处理器，所述处理器用于，通过执行计算机程序或指令，使得如权利要求1至13中任一项所述的方法被实现，或者，使得如权利要求14至25中任一项所述的方法被实现。
  55. 根据权利要求54所述的芯片，其特征在于，所述芯片还包括存储器，所述存储器用于存储所述计算机程序或所述指令。
PCT/CN2025/097742 2024-06-05 2025-05-28 感知资源指示方法和装置 Pending WO2025251983A1 (zh)

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KR20110077450A (ko) * 2009-12-30 2011-07-07 전자부품연구원 Ｔｖ 화이트 스페이스 인지 통신 시스템용 재귀 이산 퓨리에 변환 기반 다중 해상도 스펙트럼 센싱 기법
CN115835383A (zh) * 2021-09-14 2023-03-21 中兴通讯股份有限公司 信号发送方法、信号接收方法、电子设备和存储介质
WO2024032280A1 (zh) * 2022-08-08 2024-02-15 华为技术有限公司 定位配置方法、装置及存储介质

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KR20110077450A (ko) * 2009-12-30 2011-07-07 전자부품연구원 Ｔｖ 화이트 스페이스 인지 통신 시스템용 재귀 이산 퓨리에 변환 기반 다중 해상도 스펙트럼 센싱 기법
CN115835383A (zh) * 2021-09-14 2023-03-21 中兴通讯股份有限公司 信号发送方法、信号接收方法、电子设备和存储介质
WO2024032280A1 (zh) * 2022-08-08 2024-02-15 华为技术有限公司 定位配置方法、装置及存储介质

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