Communication method and apparatus

Abstract

Provided in the present application are a communication method and apparatus. The method comprises: sending first information, wherein the first information may be used for indicating, for example, a first peak-to-average power ratio; and receiving a first signal, wherein the first signal may include a first number (e.g., N) of time units. A second signal is present in a second number (e.g., M) of time units among the N time units, and a third signal is present in (N-M) time units among the N time units. The energy of the second signal is greater than or equal to a first threshold, and the energy of the third signal is less than or equal to a second threshold. N and M may be determined on the basis of the first peak-to-average power ratio. In the present application, the second signal used for charging energy may be transmitted in some time units among a plurality of time units. In this way, the second signal may have a higher peak power than that in a conventional case in which signals are continuously sent. The present invention is more conducive to a wireless device rectifying the second signal, so as to improve the charging efficiency.

Description

Communication methods and devices

[0001] This application claims priority to Chinese Patent Application No. 202411999710.X, filed with the State Intellectual Property Office of China on December 31, 2024, entitled "Communication Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication, and more particularly to communication methods and apparatus. Background Technology

[0003] For some communication systems, the goal is to achieve an intelligent network where everything is interconnected. This network may deploy a large number of wireless devices, such as wireless sensors. By acquiring information about the physical environment through these sensors and constructing a corresponding digital world, the physical and digital worlds can be seamlessly integrated. For such networks, wireless power transfer (or wireless charging) technology can provide a stable power supply to the wireless devices within the network. Therefore, wireless power transfer technology can be considered one of the key technologies for future wireless networks.

[0004] Wireless power transfer is a method of providing power to low-power terminals using radio signals. After receiving electromagnetic wave signals, the wireless device can convert the energy carried by the wireless signals into direct current (DC) through a rectifier circuit and store it. This stored power can then be used by chips, sensors, and other modules within the wireless device, for purposes such as subsequent communication and computation.

[0005] Therefore, how to efficiently wirelessly charge wireless devices is a problem that needs to be solved. Summary of the Invention

[0006] This application provides a communication method and apparatus that transmits a second signal for charging in a portion of multiple time units. In this method, the second signal can have a higher peak power compared to conventional continuous signal transmission. This is more beneficial for wireless devices to rectify the second signal, thereby improving charging efficiency.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] Firstly, a communication method is provided, applied to a terminal, or a component of the terminal (e.g., a processor, circuit, chip, or chip system), and may also be a logic module or software capable of implementing all or part of the terminal's functions. The method may include: transmitting first information. For example, the first information may be used to indicate a first parameter. For example, the first parameter may be a first peak-to-average power ratio (PAPR). Receiving a first signal. For example, the first signal may include a first number of time units, such as N. A second signal exists in a second number of time units within the first number of time units. For example, the second number may be M. For example, a second signal exists in M ​​out of N time units, and a third signal exists in NM out of N time units. The energy of the second signal is greater than or equal to a first threshold, and the energy of the third signal is less than or equal to the second threshold. N and / or M may be determined based on the first PAPR. Wherein, N > M > 0, and N and M are both integers. For example, the aforementioned second signal can be used for wireless charging of the terminal. For example, transmitting the first information is an optional step.

[0009] This application allows for the transmission of a second signal for charging across portions of multiple time units. This second signal can have a higher peak power compared to conventional continuous signal transmission. This also makes it easier for wireless devices to rectify the second signal, thereby improving charging efficiency.

[0010] In one possible design, N and / or M can be determined according to a first PAPR, which may include: a first ratio between N and M can be determined according to a first PAPR. For example, the first ratio between N and M can be N / M or M / N.

[0011] This application can determine the proportion of time units in multiple time units for transmitting charging signals by using the PAPR indicated by the terminal. This ensures that the terminal's PAPR requirements are still met even when charging signals are not transmitted in some time units, thereby improving wireless charging efficiency.

[0012] In one possible design scheme, the values ​​of N and / or M can be related to spectral efficiency. For example, spectral efficiency can include digital phase modulation schemes (or digital modulation schemes).

[0013] This application allows for flexible configuration of the values ​​of N and M in conjunction with spectrum efficiency, so as to meet the spectrum efficiency requirements during the wireless charging process for the terminal.

[0014] In one possible design, the values ​​of N and / or M can be determined based on the spectral efficiency and the first ratio.

[0015] This application allows for the determination of the values ​​of N and M based on a first ratio and spectral efficiency. This ensures wireless charging while meeting the PAPR requirements.

[0016] In one possible design, the energy of the second signal is related to the first PAPR and the first average power. For example, the first average power can be preset, such as by a protocol predefined value, or determined by the network device based on its own implementation.

[0017] This application wirelessly charges the device by using the energy of a second signal related to the first PAPR and the first average power. Compared with the traditional scenario of wireless charging by continuous transmission of single-tone signals, it can provide higher peak power and improve the energy conversion efficiency of the receiving device.

[0018] In one possible design, the first threshold can be related to the energy of the third signal.

[0019] This application can accurately filter out the second signal for charging based on a first threshold related to the energy of the third signal, thereby improving the efficiency of wireless charging.

[0020] In one possible design, the first position can be related to the second information. For example, the first position can be the position of M time units within N time units, or the first position can be the position of NM time units within N time units. The second information can be communication information between the terminal and the network device.

[0021] This application can associate different second information with different first positions, thereby achieving the purpose of additional transmission of second information and improving communication efficiency and spectrum efficiency.

[0022] In one possible design, the method may further include: determining second information based on a first position and a first mapping relationship. For example, the first mapping relationship can be used to indicate the mapping relationship between different first positions and different second information. The second information can be considered to be the second information corresponding to the first position.

[0023] The terminal of this application can associate the first position with the second information according to the first mapping relationship, thereby realizing the additional carrying of the second information through the first position and improving the spectrum efficiency.

[0024] In one possible design, the first mapping relationship can be a mapping relationship between a first bit sequence and a second bit sequence. For example, the first bit sequence can be associated with a first position, and the second bit sequence can be associated with second information.

[0025] This application establishes a mapping relationship between a first bit sequence associated with a first position and a second bit sequence associated with second information, thereby associating the first position with the second information. This allows the second information to be carried through different first positions, ensuring that both powering the wireless device and improving spectrum efficiency are achieved.

[0026] In one possible design, determining the second information based on the first position and the first mapping relationship may include: determining the first bit sequence based on the first bit, the second bit, and the first position. For example, M time units can correspond to the first bit, and NM time units can correspond to the second bit. The second bit sequence is then determined based on the first bit sequence and the first mapping relationship. Finally, the second information associated with the second bit sequence is determined.

[0027] This application provides a specific implementation process for a terminal to determine second information based on a first location, which can improve spectrum efficiency by additionally indicating second information through the first location.

[0028] In one possible design, the first bit is 1 and the second bit is 0. Alternatively, the first bit is 0 and the second bit is 1.

[0029] The embodiments of this application provide multiple possible values ​​for the first bit and the second bit, thereby improving the universality of the system.

[0030] In one possible design, the first mapping relationship can be determined in at least one of the following ways: based on a predefined protocol; or by receiving third information. For example, the third information can be used to indicate the first mapping relationship.

[0031] This application provides multiple methods for determining the first mapping relationship, so as to determine the first mapping relationship in different scenarios using a method applicable to a certain communication scenario, and then, based on the first mapping relationship, to realize the additional indication of second information through the first position, thereby improving spectrum efficiency.

[0032] In one possible design, the method may further include: acquiring signal measurement results of at least one fourth signal. For example, different fourth signals may correspond to different PAPRs. Based on the measurement results of at least one fourth signal, first information is determined.

[0033] This application can provide a terminal with multiple optional PAPRs, allowing the terminal to flexibly select the first PAPR suitable for it. This enables subsequent network devices to transmit a second signal based on the first PAPR to meet the requirements of the first PAPR and improve the wireless charging efficiency of the terminal.

[0034] Secondly, a communication method is provided, which can be applied to a network device, or be a component of the network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the network device. The method may include: receiving first information. For example, the first information may be used to indicate a first parameter. For example, the first parameter may be a first PAPR. Determining a second signal based on the first PAPR. For example, the energy of the second signal is greater than or equal to a first threshold. Transmitting the second signal within a second number of time units in a first number of time units. The first number may be referred to as N, and the second number as M. For example, N and / or M may be determined based on the first PAPR. Wherein, N > M > 0, and N and M are both integers. For example, the aforementioned second signal can be used for wireless charging of a terminal. For example, receiving the first information is an optional step.

[0035] In one possible design, the method may further include: determining a first ratio between N and M based on a first PAPR. For example, the first ratio between N and M could be N / M or M / N.

[0036] In one possible design scheme, the values ​​of N and / or M can be related to spectral efficiency. For example, spectral efficiency can include digital phase modulation schemes (or digital modulation schemes).

[0037] In one possible design scheme, the method may further include: determining the value of N and / or the value of M based on the spectral efficiency and the first ratio.

[0038] In one possible design, the method may further include: determining the energy of the second signal based on the first PAPR and a pre-configured first average power. For example, the first average power may be pre-set, such as by a protocol predefined, or determined by the network device according to its own implementation.

[0039] In one possible design, the first threshold can be related to the energy of the third signal.

[0040] In one possible design, the first position can be related to the second information. For example, the first position can be the position of M time units within N time units, or the first position can be the position of NM time units within N time units. The second information can be communication information between the terminal and the network device.

[0041] In one possible design, the method may further include: determining a first position based on the second information and the first mapping relationship. For example, the first mapping relationship can be used to indicate the mapping relationship between different first positions and different pieces of second information. It can be considered that the first position is the first position corresponding to the second information.

[0042] The network device of this application can determine a first location that can carry the second information based on the second information, and send a second signal by the location of M data units in the first location, thereby realizing additional indication of the second information and improving spectrum efficiency.

[0043] In one possible design, the first mapping relationship can be a mapping relationship between a first bit sequence and a second bit sequence. For example, the first bit sequence can be associated with a first position, and the second bit sequence can be associated with second information.

[0044] In one possible design, determining the first position based on the second information and the first mapping relationship may include: determining a second bit sequence related to the second information; determining a first bit sequence based on the second bit sequence and the first mapping relationship; and determining the first position based on the first bit sequence, the first bit, and the second bit. For example, M time units can correspond to the first bit, and NM time units can correspond to the second bit.

[0045] This application provides a specific implementation process for a network device to determine a first location based on second information, which can improve spectrum efficiency by additionally indicating the second information through the first location.

[0046] In one possible design, the first bit is 1 and the second bit is 0. Alternatively, the first bit is 0 and the second bit is 1.

[0047] In one possible design, the first mapping relationship can be determined in at least one of the following ways: based on a predefined protocol; or by receiving third information. For example, the third information can be used to indicate the first mapping relationship.

[0048] In one possible design, the method may further include sending at least one fourth signal. For example, different fourth signals may correspond to different PAPRs.

[0049] Thirdly, a communication device is provided. This device can be a terminal, a communication module implementing the corresponding functions of the terminal, or a chip responsible for communication functions implementing the corresponding functions of the terminal, such as a modem chip (also known as a baseband chip), a system-on-chip (SoC) containing a modem module, or a system-in-package (SIP) chip. It can also be a logic module or software capable of implementing all or part of the terminal functions. The communication device may include: a transceiver unit for transmitting first information. For example, the first information may be used to indicate a first parameter. For example, the first parameter may be a first PAPR. The transceiver unit is also used to receive a first signal. For example, the first signal may include a first number of time units, such as N. A second signal exists in a second number of time units within the first number of time units. For example, the second number may be M. For example, a second signal exists in M ​​out of N time units, and a third signal exists in NM out of N time units. The energy of the second signal is greater than or equal to a first threshold, and the energy of the third signal is less than or equal to the second threshold. N and / or M may be determined based on the first PAPR. Where N > M > 0, and N and M are both integers. For example, the second signal mentioned above can be used for wireless charging of the terminal. For example, sending the first information is an optional step.

[0050] In one possible design, N and / or M can be determined according to a first PAPR, which may include: a first ratio between N and M can be determined according to a first PAPR. For example, the first ratio between N and M can be N / M or M / N.

[0051] In one possible design scheme, the values ​​of N and / or M can be related to spectral efficiency. For example, spectral efficiency can include digital phase modulation schemes (or digital modulation schemes).

[0052] In one possible design, the values ​​of N and / or M can be determined based on the spectral efficiency and the first ratio.

[0053] In one possible design, the energy of the second signal is related to the first PAPR and the first average power. For example, the first average power can be preset, such as by a protocol predefined value, or determined by the network device based on its own implementation.

[0054] In one possible design, the first threshold can be related to the energy of the third signal.

[0055] In one possible design, the first position can be related to the second information. For example, the first position can be the position of M time units within N time units, or the first position can be the position of NM time units within N time units. The second information can be communication information between the terminal and the network device.

[0056] In one possible design, the device may further include a processing unit, configured to determine second information based on a first position and a first mapping relationship. For example, the first mapping relationship may be used to indicate the mapping relationship between different first positions and different second information. The second information can be considered to be the second information corresponding to the first position.

[0057] In one possible design, the first mapping relationship can be a mapping relationship between a first bit sequence and a second bit sequence. For example, the first bit sequence can be associated with a first position, and the second bit sequence can be associated with second information.

[0058] In one possible design, the processing unit is further configured to: determine a first bit sequence based on a first bit, a second bit, and a first position. For example, M time units can correspond to the first bit, and NM time units can correspond to the second bit. The second bit sequence is then determined based on the first bit sequence and a first mapping relationship. Finally, second information associated with the second bit sequence is determined based on the second bit sequence.

[0059] In one possible design, the first bit is 1 and the second bit is 0. Alternatively, the first bit is 0 and the second bit is 1.

[0060] In one possible design, the first mapping relationship can be determined in at least one of the following ways: determined based on a protocol predefined definition; or, the transceiver unit is further configured to receive third information. For example, the third information can be used to indicate the first mapping relationship.

[0061] In one possible design, the processing unit is further configured to: acquire signal measurement results of at least one fourth signal. For example, different fourth signals may correspond to different PAPRs. Based on the measurement results of at least one fourth signal, first information is determined.

[0062] Fourthly, a communication device is provided. This device can be a network device, a communication module implementing the corresponding functions of the network device, or a chip responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module. It can also be a logic module or software capable of implementing all or part of the functions of a network device. The communication device may include: a transceiver unit for receiving first information. For example, the first information may be used to indicate a first parameter. For example, the first parameter may be a first PAPR. A processing unit for determining a second signal based on the first PAPR. For example, the energy of the second signal is greater than or equal to a first threshold. The transceiver unit is further configured to transmit the second signal within a second number of time units in a first number of time units. The first number may be referred to as N, and the second number as M. For example, N and / or M may be determined based on the first PAPR. Wherein, N > M > 0, and N and M are both integers. For example, the second signal may be used for wireless charging of a terminal. For example, receiving the first information is an optional operation.

[0063] In one possible design, the processing unit is further configured to: determine a first ratio between N and M based on the first PAPR. For example, the first ratio between N and M could be N / M or M / N.

[0064] In one possible design scheme, the values ​​of N and / or M can be related to spectral efficiency. For example, spectral efficiency can include digital phase modulation schemes (or digital modulation schemes).

[0065] In one possible design, the processing unit is further configured to: determine the value of N and / or the value of M based on the spectral efficiency and the first ratio.

[0066] In one possible design, the processing unit is further configured to: determine the energy of the second signal based on the first PAPR and a pre-configured first average power. For example, the first average power may be pre-set, such as by a protocol predefined, or determined by the network device according to its own implementation.

[0067] In one possible design, the first threshold can be related to the energy of the third signal.

[0068] In one possible design, the first position can be related to the second information. For example, the first position can be the position of M time units within N time units, or the first position can be the position of NM time units within N time units. The second information can be communication information between the terminal and the network device.

[0069] In one possible design, the processing unit is further configured to: determine a first position based on the second information and the first mapping relationship. For example, the first mapping relationship can be used to indicate the mapping relationship between different first positions and different pieces of second information. It can be considered that the first position is the first position corresponding to the second information.

[0070] In one possible design, the first mapping relationship can be a mapping relationship between a first bit sequence and a second bit sequence. For example, the first bit sequence can be associated with a first position, and the second bit sequence can be associated with second information.

[0071] In one possible design, the processing unit is further configured to: determine a second bit sequence related to the second information; determine a first bit sequence based on the second bit sequence and a first mapping relationship; and determine a first position based on the first bit sequence, the first bit, and the second bit. For example, M time units can correspond to the first bit, and NM time units can correspond to the second bit.

[0072] In one possible design, the first bit is 1 and the second bit is 0. Alternatively, the first bit is 0 and the second bit is 1.

[0073] In one possible design, the first mapping relationship can be determined in at least one of the following ways: determined based on a protocol predefined definition; or, the transceiver unit is further configured to receive third information. For example, the third information can be used to indicate the first mapping relationship.

[0074] In one possible design, the transceiver unit is also used to transmit at least one fourth signal. For example, different fourth signals may correspond to different PAPRs.

[0075] Fifthly, a communication device is provided. This device can be a terminal, a communication module implementing the corresponding functions of the terminal, or a chip responsible for communication functions implementing the corresponding functions of the terminal, such as a modem chip (also known as a baseband chip), a system-on-chip (SoC) containing a modem module, or a system-in-package (SIP) chip. It can also be a logic module or software capable of implementing all or part of the terminal functions. The communication device may include: a transceiver for transmitting first information. For example, the first information may be used to indicate a first parameter. For example, the first parameter may be a first PAPR. The transceiver is also used to receive a first signal. For example, the first signal may include a first number of time units, such as N. A second signal exists in a second number of time units within the first number of time units. For example, the second number may be M. For example, a second signal exists in M ​​out of N time units, and a third signal exists in NM out of N time units. The energy of the second signal is greater than or equal to a first threshold, and the energy of the third signal is less than or equal to the second threshold. N and / or M may be determined according to the first PAPR. Where N > M > 0, and N and M are both integers. For example, the second signal mentioned above can be used for wireless charging of the terminal. For example, sending the first information is an optional step.

[0076] In one possible design, N and / or M can be determined according to a first PAPR, which may include: a first ratio between N and M can be determined according to a first PAPR. For example, the first ratio between N and M can be N / M or M / N.

[0077] In one possible design scheme, the values ​​of N and / or M can be related to spectral efficiency. For example, spectral efficiency can include digital phase modulation schemes (or digital modulation schemes).

[0078] In one possible design, the values ​​of N and / or M can be determined based on the spectral efficiency and the first ratio.

[0079] In one possible design, the energy of the second signal is related to the first PAPR and the first average power. For example, the first average power can be preset, such as by a protocol predefined value, or determined by the network device based on its own implementation.

[0080] In one possible design, the first threshold can be related to the energy of the third signal.

[0081] In one possible design, the first position can be related to the second information. For example, the first position can be the position of M time units within N time units, or the first position can be the position of NM time units within N time units. The second information can be communication information between the terminal and the network device.

[0082] In one possible design, the device may further include a processor configured to determine second information based on a first position and a first mapping relationship. For example, the first mapping relationship may be used to indicate the mapping relationship between different first positions and different second information. The second information can be considered to be the second information corresponding to the first position.

[0083] In one possible design, the first mapping relationship can be a mapping relationship between a first bit sequence and a second bit sequence. For example, the first bit sequence can be associated with a first position, and the second bit sequence can be associated with second information.

[0084] In one possible design, the processor is further configured to: determine a first bit sequence based on a first bit, a second bit, and a first position. For example, M time units may correspond to the first bit, and NM time units may correspond to the second bit. The processor then determines a second bit sequence based on the first bit sequence and a first mapping relationship. Finally, it determines second information associated with the second bit sequence.

[0085] In one possible design, the first bit is 1 and the second bit is 0. Alternatively, the first bit is 0 and the second bit is 1.

[0086] In one possible design, the first mapping relationship can be determined in at least one of the following ways: based on a predefined protocol; or, the transceiver is further configured to receive third information. For example, the third information can be used to indicate the first mapping relationship.

[0087] In one possible design, the processor is further configured to: acquire signal measurement results of at least one fourth signal. For example, different fourth signals may correspond to different PAPRs. Based on the measurement results of at least one fourth signal, first information is determined.

[0088] Sixthly, a communication device is provided. This device can be a network device, a communication module implementing the corresponding functions of the network device, or a chip responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module. It can also be a logic module or software capable of implementing all or part of the functions of a network device. The communication device may include: a transceiver for receiving first information. For example, the first information may be used to indicate a first parameter. For example, the first parameter may be a first PAPR. A processor for determining a second signal based on the first PAPR. For example, the energy of the second signal is greater than or equal to a first threshold. The transceiver is also used to transmit the second signal within a second number of time units in a first number of time units. The first number may be referred to as N, and the second number as M. For example, N and / or M may be determined based on the first PAPR. Wherein, N > M > 0, and N and M are both integers. For example, the second signal may be used for wireless charging of a terminal. For example, receiving the first information is an optional operation.

[0089] In one possible design, the processor is further configured to: determine a first ratio between N and M based on the first PAPR. For example, the first ratio between N and M could be N / M or M / N.

[0090] In one possible design scheme, the values ​​of N and / or M can be related to spectral efficiency. For example, spectral efficiency can include digital phase modulation schemes (or digital modulation schemes).

[0091] In one possible design, the processor is further configured to: determine the value of N and / or the value of M based on the spectral efficiency and the first ratio.

[0092] In one possible design, the processor is further configured to: determine the energy of the second signal based on the first PAPR and a pre-configured first average power. For example, the first average power may be pre-set, such as by a protocol predefined, or determined by the network device according to its own implementation.

[0093] In one possible design, the first threshold can be related to the energy of the third signal.

[0094] In one possible design, the first position can be related to the second information. For example, the first position can be the position of M time units within N time units, or the first position can be the position of NM time units within N time units. The second information can be communication information between the terminal and the network device.

[0095] In one possible design, the processor is further configured to: determine a first position based on the second information and the first mapping relationship. For example, the first mapping relationship can be used to indicate the mapping relationship between different first positions and different pieces of second information. It can be considered that the first position is the first position corresponding to the second information.

[0096] In one possible design, the first mapping relationship can be a mapping relationship between a first bit sequence and a second bit sequence. For example, the first bit sequence can be associated with a first position, and the second bit sequence can be associated with second information.

[0097] In one possible design, the processor is further configured to: determine a second bit sequence related to the second information; determine a first bit sequence based on the second bit sequence and a first mapping relationship; and determine a first position based on the first bit sequence, the first bit, and the second bit. For example, M time units can correspond to the first bit, and NM time units can correspond to the second bit.

[0098] In one possible design, the first bit is 1 and the second bit is 0. Alternatively, the first bit is 0 and the second bit is 1.

[0099] In one possible design, the first mapping relationship can be determined in at least one of the following ways: based on a predefined protocol; or, the transceiver is further configured to receive third information. For example, the third information can be used to indicate the first mapping relationship.

[0100] In one possible design, the transceiver is also used to transmit at least one fourth signal. For example, different fourth signals may correspond to different PAPRs.

[0101] A seventh aspect provides a communication system comprising: a terminal and a network device, the terminal being configured to execute the methods of the first aspect and various possible implementations thereof, and the network device being configured to execute the methods of the second aspect and various possible implementations thereof.

[0102] Eighthly, a chip is provided, comprising interface circuitry and one or more processors. The one or more processors are coupled to a memory. The memory stores part or all of a computer program or instructions necessary for implementing the functions described in the first and second aspects. The one or more processors are executable to carry out the computer program or instructions, which, when executed, cause the communication device to implement the methods in any possible design or implementation of the first and second aspects. The interface circuitry is used to implement communication functions within the communication device and / or communication functions between the communication device and other devices or components.

[0103] Ninthly, a computer-readable storage medium is provided. The computer-readable storage medium stores computer instructions; when the computer instructions are executed on a computer, the computer causes the computer to perform a communication method as designed in any of the foregoing aspects.

[0104] A tenth aspect provides a computer program product. The computer program product includes a computer program or instructions that, when executed on a computer, cause the computer to perform a communication method as designed in any of the foregoing aspects.

[0105] The beneficial effects of the methods in any of the second to tenth aspects mentioned above can be referred to the description of the beneficial effects of the methods in the first aspect, and will not be repeated here. Attached Figure Description

[0106] Figure 1 is a schematic diagram of the architecture of a communication system applied in an embodiment of this application;

[0107] Figure 2 is a schematic diagram of a single-tone signal charging provided in an embodiment of this application;

[0108] Figure 3 is a schematic diagram of a communication scenario provided in an embodiment of this application;

[0109] Figure 4 is a schematic diagram of another communication scenario provided by an embodiment of this application;

[0110] Figure 5 is a schematic diagram of another communication scenario provided by an embodiment of this application;

[0111] Figure 6 is a schematic diagram of another communication scenario provided by an embodiment of this application;

[0112] Figure 7 is a schematic diagram of a communication architecture provided in an embodiment of this application;

[0113] Figure 8 is a schematic diagram of another communication architecture provided in an embodiment of this application;

[0114] Figure 9 is a schematic diagram of a communication method provided in an embodiment of this application;

[0115] Figure 10 is a schematic diagram of a time unit distribution provided in an embodiment of this application;

[0116] Figure 11 is a schematic diagram of additional information configuration provided in an embodiment of this application;

[0117] Figure 12 is a schematic diagram of the distribution of a second signal provided in an embodiment of this application;

[0118] Figure 13 is a schematic diagram of spectral efficiency variation provided in an embodiment of this application;

[0119] Figure 14 is a schematic diagram of another spectral efficiency change provided in an embodiment of this application;

[0120] Figure 15 is a schematic diagram of the distribution of another second signal provided in an embodiment of this application;

[0121] Figure 16 is a schematic diagram of another spectral efficiency variation provided in an embodiment of this application;

[0122] Figure 17 is a schematic diagram of the peak power variation of a second signal provided in an embodiment of this application;

[0123] Figure 18 is a schematic diagram of another communication method provided in an embodiment of this application;

[0124] Figure 19 is a schematic diagram of a communication device provided in an embodiment of this application;

[0125] Figure 20 is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0126] Figure 1 is a schematic diagram of the architecture of a communication system 1000 provided in an embodiment of this application. As shown in Figure 1, the communication system 1000 includes a radio access network (RAN) 100, wherein the RAN 100 includes at least one RAN node (110a and 110b in Figure 1, collectively referred to as 110), and may also include at least one terminal (120a-120j in Figure 1, collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1). The terminal 120 is wirelessly connected to the RAN node 110. Terminals and RAN nodes can be interconnected via wired or wireless means. The communication system 1000 may also include a core network 200. The RAN node 110 is connected to the core network 200 via wireless or wired means. The core network equipment in core network 200 and the RAN node 110 in RAN 100 can be independent and different physical devices, or they can be the same physical device that integrates the logical functions of the core network equipment and the logical functions of the RAN node. Communication system 1000 may also include Internet 300.

[0127] RAN100 can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, a future communications network, or a future radio access system as defined in the 3rd generation partnership project (3GPP). RAN100 can also include two or more of the above-mentioned different radio access systems. RAN100 can also be an open RAN (O-RAN).

[0128] RAN nodes, also known as radio access network devices, RAN entities, or access nodes, are used to help terminals access communication systems wirelessly. In one application scenario, an RAN node can be a base station (BS), an evolved NodeB (eNodeB / eNB), a transmission reception point (TRP), a generation NodeB (gNB) in a 5th generation (5G) mobile communication system, a future base station in a future communication network, or a base station in a future mobile communication system. RAN nodes can be macro base stations (as shown in Figure 1, 110a), micro base stations or indoor stations (as shown in Figure 1, 110b), relay nodes, or master nodes.

[0129] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing different functions of the base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). An RU can also be called a radio frequency unit. Here, the CU performs the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), and can also perform the functions of the service data adaptation protocol (SDAP). The DU performs the functions of the base station's radio link control layer and medium access control (MAC) layer, and can also perform some or all of the physical layer functions. For specific descriptions of these protocol layers, refer to the relevant 3GPP technical specifications. The RU can be used to implement radio frequency signal transmission and reception. The CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as within a baseband unit (BBU). RUs can be included in radio frequency equipment, such as remote radio units (RRUs) or active antenna units (AAUs). CUs can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0130] In different systems, RAN nodes may have different names. For example, in an open radio access network (O-RAN) system, a CU can be called an open CU (O-CU), a DU can be called an open DU (O-DU), and an RU can be called an open RU (O-RU). The RAN nodes in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. For example, an RAN node can be a server loaded with the corresponding software modules. The embodiments of this application do not limit the specific technology or device form used in the RAN nodes. For ease of description, a base station is used as an example of a RAN node in the following description.

[0131] A terminal is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station. Terminals can also be called terminal equipment, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technology or device form used in the terminal.

[0132] In some examples, the core network 200 may include any core network device such as the access and mobility management function (AMF) entity, the session management function (SMF) entity, the user plane function (UPF) entity, the sensing service control function (SSCF), the sensing data processing function (SDPF), and the unified data management (UDM).

[0133] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.

[0134] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. For terminals 120j that access the wireless access network 100 through 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol. In this case, relative to 110a, 120i is also a base station. Therefore, both base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be called communication devices with base station functions, and 120a-120j in Figure 1 can be called communication devices with terminal functions.

[0135] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0136] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0137] In a wireless communication system, communication devices are included, and these devices can communicate wirelessly using air interface resources. These communication devices can include network devices and terminal devices; network devices can also be called base station devices, i.e., the wireless access network devices mentioned above. Air interface resources can include at least one of time-domain resources, frequency-domain resources, code resources, and spatial resources. These communication devices can also be called communication apparatuses.

[0138] The solutions provided in this application can be applied to wireless communication between communication devices. Wireless communication can include: wireless communication between network devices and terminals, wireless communication between network devices, and wireless communication between terminals. In this application, the term "wireless communication" can also be simply referred to as "communication," and the term "communication" can also be described as "data transmission," "information transmission," or "transmission."

[0139] In some solutions, wireless power transfer can be achieved by transmitting a single-tone charging waveform (or single-tone signal) to charge the wireless device. The single-tone charging waveform can also be called a single-tone signal. Referring to Figure 2, an adaptive single-tone charging waveform method is provided. For example, channels h1, h2, h3, and h4 can be considered as corresponding to four different frequency points. A network device transmitting a signal at frequency 1 corresponds to signal h1, at frequency 2 to signal h2, at frequency 3 to signal h3, and at frequency 4 to signal h4. Signals transmitted at different frequencies may exhibit different degrees of attenuation and distortion. Therefore, the energy originally transmitted on the four channels can be aggregated, and the frequency (or channel) with the least attenuation can be selected to transmit the aggregated energy signal. As shown in Figure 2, a single-tone signal is selected to be transmitted on channel h2. The wireless device receives the single-tone signal, rectifies it to convert the energy into DC power, and stores this power through a power management module. For example, a single-tone signal can be a continuous sine wave.

[0140] The above methods can maximize the charging efficiency of the receiving end (i.e., the wireless device).

[0141] However, the single-tone signals in the above schemes are often continuous sine waves, which means that in the time domain, the single-tone signals require continuous time-domain resources. Therefore, the single-tone signals in the above schemes have high resource requirements.

[0142] Therefore, embodiments of this application provide a communication method and apparatus that transmits a second signal for charging in a portion of multiple time units. In this manner, the second signal can have a higher peak power compared to conventional continuous signal transmission. This is more beneficial for wireless devices to rectify the second signal, thereby improving charging efficiency.

[0143] The communication method and apparatus will be further described below with reference to the accompanying drawings. It is understood that the embodiments of this application use the first and second logic units as examples of the execution entities in the interactive illustration, but this application does not limit the execution entities in the interactive illustration. For example, the first and second logic units can be network devices. The method executed by the network device in this application can also be implemented by modules (e.g., circuits, processors, chips, or chip systems) in the network device, or by logic nodes, logic modules, or software that can implement all or part of the functions of the network device.

[0144] The technical solutions provided in this application can be applied to wireless communication / charging between communication devices. Wireless communication / charging between communication devices can include: wireless communication / charging between network devices and terminals, wireless communication / charging between network devices, and wireless communication / charging between terminals. In this application, the term "wireless communication" can also be abbreviated as "communication," and can also be described as "data transmission," "information transmission," or "transmission." The term "wireless charging" can also be abbreviated as "charging," "energy transfer," or "charging," and can also be described as "wireless energy transfer," "wireless charging," "wireless energy transmission," "radio frequency energy transmission," "radio frequency energy transfer," "radio frequency charging," "radio frequency charging," etc., and this application does not impose any limitations.

[0145] Figures 3, 4, 5, and 6 illustrate various communication scenarios applicable to the embodiments of this application. These embodiments are applicable to point-to-point single-connection communication in standalone (SA) scenarios between network device 210 and terminal 220. They are also applicable to multi-hop single-connection communication scenarios between network device 210 and terminal 220, such as through multiple relay devices 230. For example, relay device 230 can be any possible relay device such as an integrated access and backhaul (IAB) node or router. Furthermore, these embodiments are applicable to dual connectivity (DC) communication scenarios between multiple network devices 210 and terminal 220. For example, in a DC scenario, one network device 210 can be a macro base station, and the other network device 210 can be a micro base station. Finally, these embodiments are applicable to multi-hop multi-connection communication scenarios, and so on.

[0146] It is understood that only a limited number of communication scenarios are shown in the embodiments of this application. The embodiments of this application can also be applied to any other possible communication scenarios, and no limitation is made on the applicable network scenario architecture. The embodiments of this application can be applied to any long term evolution (LTE), NR and other protocol frameworks.

[0147] It is understood that, in any communication network, the charging of one device by another can be considered an applicable network architecture for the embodiments of this application. The charging scenarios applicable to the embodiments of this application include, but are not limited to: network devices charging terminals; network devices charging network devices; network devices charging relay devices; relay devices charging terminals; multiple network devices charging one terminal; multiple network devices charging multiple terminals, etc., and are not limited to these scenarios in the embodiments of this application. In the embodiments of this application, the network device can be an access network device, such as a base station; or it can be a core network device.

[0148] Figure 7 illustrates a communication architecture. For example, in 5G, a high-layer segmentation approach is used for the gNB, splitting the base station into two functional entities, such as CU and DU. For instance, the access network device shown in Figure 7 can be a gNB, which can consist of a CU and a DU. Of course, a DU can include one or more, and this embodiment does not limit this. The gNB can communicate with the core network elements of the 5G core network (5GC) through the next-generation (NG) interface. Different gNBs can communicate with each other through the Xn interface, for example, through the Xn-control (C) interface. The CU can communicate with different DUs through the F1 interface.

[0149] Figure 8 is a schematic diagram of another communication architecture provided in an embodiment of this application.

[0150] The embodiments of this application can also be applied to O-RAN network architecture. For example, in the O-RAN architecture, access network equipment can be divided into three functional entities: O-RU, O-DU, and O-CU. The O-RU is similar to the aforementioned RU, the O-DU is similar to the aforementioned DU, and the O-CU is similar to the aforementioned CU. The interfaces between the functional entities can be implemented with reference to relevant technologies, which will not be elaborated upon in the embodiments of this application. The O-RAN network architecture may also include a near-real-time RAN intelligent controller (RIC) and service management and orchestration (SMO).

[0151] For example, near real-time RICs are primarily used to collect network information and perform necessary optimization tasks. Near real-time RICs can communicate with O-CUs and O-DUs via the E2 interface. A near real-time RIC may include a QoS management module, a radio connection management module, an interference management module, and a mobility management module, among others.

[0152] The SMO can include multiple functional modules, such as non-real-time RIC, configuration, policy, design, and inventory modules. The main functions of the SMO can include operations, administration, and maintenance (OAM) of cloud infrastructure. For example, it can operate, maintain, and manage cloud infrastructure through the O2 interface. The SMO can also operate, maintain, and manage the RAN through the O1 interface. The SMO can also include a non-real-time RIC, such as one that combines artificial intelligence (AI) and big data analytics to achieve non-real-time macro-control and intervention of the O-RAN through the A1 interface. Each functional entity in the O-RAN can function as an independent entity, communicating with the SMO individually using the O1 interface. In some examples, the SMO and near-real-time RIC can communicate via either the A1 or O1 interface; the specific communication path can be selected based on the actual situation, which will not be elaborated further in this embodiment.

[0153] Figure 9 is a schematic diagram of a communication method provided in an embodiment of this application.

[0154] This communication process is applicable to, but not limited to, the communication scenarios shown in Figures 1 and 3-8. This method can be applied to LTE, LTE frequency division duplex (FDD) systems, LTE TDD, 5G systems, or NR systems, future communication systems (such as future communication systems), and V2X. V2X can include vehicle-to-network (V2N), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), long-term evolution-vehicle (LTE-V), vehicle-to-everything (V2X), MTC, IoT, long-term evolution-machine (LTE-M), machine-to-machine (M2M), and device-to-device (D2D) wireless communication scenarios. The method may include the following steps:

[0155] S101, the terminal sends the first information to the network device. Accordingly, the network device receives the first information from the terminal.

[0156] For example, the first information can be used to indicate a first parameter. This first parameter can be used by the network device to determine how to send the second signal. For instance, the first parameter can be used by the network device to determine at which time units the second signal should be sent. Or, the first parameter can be used by the network device to determine the energy (or power) required to send the second signal.

[0157] Optionally, the first parameter can be a parameter related to the peak-to-average power ratio (PAPR). For example, the first parameter can be called the first PAPR. The terminal indicates this first PAPR to the network device so that the network device can subsequently send a charging signal (such as a second signal) that meets the first PAPR to perform wireless power transfer for the terminal. In various embodiments of this application, PAPR can also be called peak-to-average power ratio. It is understood that the first parameter can also be called PAPR, target PAPR, PAPR parameter, etc., and the name of the first parameter is not limited in the embodiments of this application.

[0158] In one possible implementation, S101 can be an optional step.

[0159] S102, the network device sends a second signal to the terminal. Correspondingly, the terminal receives a first signal. The first signal includes the second signal from the network device.

[0160] In one possible implementation, the network device can determine how the second signal is transmitted. For example, the network device can determine at which time units the second signal is transmitted. And / or, the network device determines the energy of the transmitted second signal.

[0161] In some examples, a certain number of time units can be divided into a time period. The network device can choose to send the second signal on some time units within this time period, and not send the second signal on other time units within the time period. This second signal can be considered a charging signal for wireless power transfer to the terminal by the network device. In some examples, the network device can determine a first number of time units as a time period, for example, the first number can be denoted as N, where N can be a positive integer greater than or equal to 2. This first number of time units can be consecutive time units. For example, N consecutive time units can be considered as a time period, i.e., the length of the time period is N. The network device can determine a second number of time units within this time period to send the second signal on these second number of time units. For example, the second number can be denoted as M, where M is a positive integer greater than or equal to 1 and less than N. Accordingly, the network device can determine to send the second signal on M time units out of the N time units included in a certain time period. Referring to Figure 10, each box can be considered as a time unit. The black box represents the time unit for sending the second signal. It can be seen that within a time period consisting of N time units, there are M time units for sending the second signal.

[0162] In the various embodiments of this application, a time unit can be considered as a length unit in the time domain. For example, a time unit can be any time domain unit such as a symbol, slot, mini slot, subframe, or frame. The embodiments of this application do not limit this. Of course, in the various embodiments of this application, a time unit can also be called a time domain unit, timestamp, time identifier, time domain identifier, etc. The embodiments of this application do not limit this.

[0163] The subsequent embodiments of this application will describe the solutions involved in the embodiments of this application using N as the first quantity and M as the second quantity. In other examples, other letters or names may be used to equivalently replace the first quantity and the second quantity, and this application embodiment does not limit this.

[0164] In one possible implementation, the network device can determine the second signal based on the first PAPR. For example, the network device can determine on which time units the second signal should be transmitted based on the first PAPR. Optionally, the network device can determine the number of time units included in a time period based on the first PAPR; and / or, for a given time period, the network device can determine on how many time units within that time period the second signal should be transmitted based on the first PAPR. In other words, the network device can determine N and / or M based on the first PAPR.

[0165] In some cases, the network device can determine the first PAPR itself, such as if the first PAPR is predefined by the protocol, and the network device determines the first PAPR according to the protocol predefined. In this case, it is not necessary to execute S101. In other cases, the first PAPR can be provided by the terminal, for example, the network device determines the first PAPR based on the first reference indicated by the first information received in S101.

[0166] Optionally, the network device can determine N based on the first PAPR. For example, the value of M can be predefined in the protocol, so the network device can determine N based on the first PAPR and the predefined value of M. For example, the product of the first PAPR and M can be equal to N; or the product of the first PAPR and M can be greater than N; or the product of the first PAPR and M can be less than N. This application does not limit the specific implementation.

[0167] Optionally, the network device can determine M based on the first PAPR. For example, the value of N can be predefined in the protocol, so the network device can determine M based on the first PAPR and the predefined value of N. For example, the product of 1 / first PAPR and N can be equal to M; or, the product of 1 / first PAPR and N can be greater than M; or, the product of 1 / first PAPR and N can be less than M. This application does not limit the specific implementation.

[0168] The following describes the scenario where the network device determines N and M based on the first PAPR.

[0169] Optionally, the network device can determine a first ratio between N and M based on the first PAPR. In other words, the first ratio between N and M can be determined by the network device based on the first PAPR. Let's illustrate the relationship between the first PAPR and the first ratio with an average power of 1 as an example. For N time units, this means the total allowed power for that time period is N*1. If the network device selects M time units from these N time units to transmit the second signal, assuming the power of the second signal transmitted in each of the M time units is x, then for any given time period, the total power of the second signal transmitted, M*x, should be equal to the total allowed power N*1 for that time period. This gives x = N / M. Since the average power is 1, the PAPR for that time period is x / 1, which equals x. Therefore, the PAPR for that time period is equal to N / M, meaning there is a correlation between PAPR and N / M. Thus, the network device can determine the first ratio between N and M based on the first PAPR transmitted by the terminal.

[0170] For example, when the first ratio is N / M, N / M can be less than the first PAPR, or the first PAPR can be equal to N / M, or N / M can be greater than the first PAPR. As another example, when the first ratio is M / N, M / N can be greater than 1 / first PAPR, or M / N can be equal to 1 / first PAPR, or M / N can be less than 1 / first PAPR. It should be understood that the network device can determine the first ratio between N and M based on the first PAPR, but the specific relationship between the first PAPR and the first ratio, such as their magnitude or proportional relationship, can be determined according to the actual situation, and this application embodiment does not limit this. It can be understood that, with the average power remaining constant, N / M is proportional to the peak power. Compared to the traditional scheme of transmitting a single tone signal in each time unit, this application embodiment can increase the peak power and improve wireless charging efficiency.

[0171] This application embodiment can determine the proportion of time units used for transmitting charging signals among multiple time units by combining PAPR. This ensures that the PAPR requirement can still be met even when charging signals are not transmitted in some time units, thereby improving wireless charging efficiency.

[0172] In one possible implementation, the network device can further determine the specific values ​​of N and M based on the first ratio between N and M determined in the aforementioned scheme. It is understood that the values ​​of N and M should satisfy the first ratio determined in the aforementioned embodiments, such as the values ​​of N and M satisfying the aforementioned N / M or M / N. Assuming the first PAPR is equal to 2, and the first PAPR = N / M, then we know that N / M = 2. Several cases are possible, such as N = 2, then M = 1; or N = 4, M equals 2, etc. It can be considered that any value of N and M satisfying the above ratio relationship is acceptable.

[0173] It is understood that the second signal transmitted in each of the M time units can be the same or different. For example, the second signal transmitted in all M time units may be the same; or the second signal transmitted in all M time units may be different; or the second signal transmitted in some of the M time units may be the same, while the second signal transmitted in other of the M time units may be different. This application does not limit the scope of the embodiments.

[0174] In one possible implementation, the network device can determine N and M according to the method described in the above embodiments, and send a second signal to the terminal in the M time units. Correspondingly, the terminal can determine the first signal received in the N time units. It can be considered that the first signal includes (or corresponds to) the N time units, or that the first signal is all signals received in the N time units. The first signal may include a second signal and a third signal. For example, the energy of the second signal is greater than or equal to a first threshold. Or, for example, the energy of the third signal is less than or equal to the second threshold. In the various embodiments of this application, energy can also be described as power, transmit power, receive power, signal strength, etc., and this application does not limit this description.

[0175] For example, if a second signal exists within M time units out of N time units, the terminal can receive the second signal in those M time units. Similarly, if a third signal exists within NM time units out of N time units, the terminal can receive the third signal in those NM time units. For example, the third signal might be noise received by the terminal. Similar to the second signal, the third signal received by the terminal in each of the NM time units can be the same or different. For example, the third signal received by the terminal in all NM time units might be the same; or the third signal received by the terminal in all NM time units might be different; or the third signal received by the terminal in some time units might be the same, while the third signal received in other time units might be different. This application does not limit the scope of the embodiments.

[0176] In one possible implementation, the terminal can continuously measure the signal to determine the signal energy received in each time unit. For time units where the signal energy is greater than or equal to a first threshold, it can be considered that a second signal has been received in that time unit. For time units where the signal energy is less than or equal to the second threshold, it can be considered that a third signal has been received in that time unit. For example, the first threshold is greater than or equal to the second threshold. This also means that the energy of the second signal is greater than the energy of the third signal. The terminal can rectify the energy of the second signal to achieve wireless charging. Correspondingly, the terminal can ignore the third signal. It is clear that although the network device does not transmit signals in NM time units, due to the possibility of various noise signals in the environment, the terminal may receive corresponding third signals (or noise signals) in these time units.

[0177] Optionally, the first threshold can be related to the energy of the third signal. For example, the value of the first threshold is the energy of the third signal. For instance, if the energy of a noise signal is used as the first threshold, and the energy of the signal received by the terminal is greater than the energy of the noise signal, this means that the received signal is not a noise signal, but a charging signal (i.e., the second signal) used for wireless charging. The terminal can then rectify and charge this charging signal (i.e., the second signal).

[0178] Optionally, the first threshold can also be greater than the energy of the third signal. In this way, the terminal can filter out signals with energy greater than the third signal but lower than the first threshold. This allows the terminal to wirelessly charge the higher-energy signals, thereby improving charging efficiency.

[0179] Optionally, if the terminal receives multiple third signals, the energy of each third signal can be different. Therefore, the first threshold can be the energy of one of the multiple third signals.

[0180] Optionally, if the terminal receives multiple second signals, the energy of the different second signals can also be different.

[0181] The embodiments of this application can accurately filter out the second signal for charging based on a first threshold related to the energy of the third signal, thereby improving the efficiency of wireless charging.

[0182] In one possible implementation, the first threshold can be greater than the second threshold. Alternatively, the first threshold can be equal to the second threshold. For example, the terminal can distinguish between a second signal and a third signal based on a threshold (which can be called either the first or the second threshold). If the energy of a signal is greater than or equal to the threshold, the signal can be considered a second signal; if the energy of a signal is less than or equal to the threshold, the signal can be considered a third signal. In scenarios where the signal energy is equal to the threshold, the signal can be determined to be either a second or a third signal based on the actual situation; this application does not limit this.

[0183] This application embodiment can transmit a second signal for charging in a portion of multiple time units. In this way, the second signal can have a higher peak power compared to the conventional method of continuously transmitting signals. This is more beneficial for wireless devices to rectify the second signal, thereby improving charging efficiency.

[0184] In the communication method provided in this application embodiment, the communication function is not considered in the scenario of wireless charging using continuous transmission of single-tone signals. That is, no consideration is given to how to carry data during the transmission of single-tone signals. This results in the time-frequency resources originally used for communication being unable to transmit data when used for transmitting single-tone signals, thus reducing the system's spectral efficiency. Therefore, this application embodiment can carry additional information based on the different positions of the transmitted second signal within the time period (i.e., the positions of different time units), thereby improving spectral efficiency.

[0185] For example, spectral efficiency can be used to represent the data rate that a system can transmit within a unit bandwidth. For instance, the unit of spectral efficiency can be bits per second per hertz (bps / Hz). Many factors affect spectral efficiency, such as channel coding, bandwidth, and modulation techniques. Modulation techniques can also be referred to as modulation order, modulation scheme, digital modulation scheme, etc. Different digital modulation schemes correspond to different numbers of bits transmitted per symbol; therefore, the more bits transmitted per symbol, the higher the spectral efficiency. Digital modulation schemes can also be referred to as digital phase modulation schemes, digital coding schemes, digital phase coding schemes, etc., and this application embodiment does not limit the terminology. Therefore, in this application embodiment, spectral efficiency can also be described as communication rate, coding rate, modulation order, etc., without limitation.

[0186] In one possible implementation, the first position can be associated with the second information. The first position can be the position of M time units within N time units. Alternatively, the first position can be the position of NM time units within N time units. Then, the terminal can determine the second information associated with the aforementioned position based on the position where the second signal is received or not received within a time period. Compared to the traditional method of transmitting information through modulation symbols in a signal, this embodiment of the application can associate different second information with different first positions, thereby achieving the purpose of additionally transmitting second information and improving communication efficiency and spectral efficiency.

[0187] For example, the second information can be communication information between the terminal and the network device. This communication information can be control information (such as bits of control information), data information (such as bits of data information), or any other possible information between the terminal and the network device; this application does not limit the scope of the embodiments.

[0188] Referring to Figure 11, assuming N=4 and M=1, it means the network device sends the second signal in one of the four time units. Therefore, the second signal can be sent in four different ways: in the first, second, third, or fourth time unit of the time period. Assuming the bit value is 1 for sending the second signal in a certain time unit and 0 for not sending it in another, these four sending methods can correspond to four different bit value combinations, such as 1000, 0100, 0010, and 0001. These four bit combinations can correspond to different second information. In other examples, the bit value corresponding to sending the second signal in a certain time unit can also be 0, and the bit value corresponding to not sending it in another time unit can also be 1. This application does not limit this. See Table 1 for reference.

[0189] Table 1

[0190] It is understood that Figure 11 and Table 1 above are merely exemplary descriptions, and the correspondence between the bit value combinations and the second information shown in Table 1 can be determined according to the actual situation. This application embodiment does not impose any limitations. When the values ​​of N and M are higher, the number of bit value combinations is correspondingly greater, which means that more second information can be indicated through different positions.

[0191] In one possible implementation, considering that additional second information can be carried through the first position, the more possibilities there are for the first position, the more additional second information can be indicated, which in turn affects spectral efficiency. Therefore, the network device can determine the values ​​of N and M based on spectral efficiency. In other words, the values ​​of N and M can be related to spectral efficiency, so that different second information can be carried through multiple possible first positions to meet the corresponding spectral efficiency requirements.

[0192] For example, if a network device sends a second signal in M ​​time units out of N time units, it means the network device needs to select M time units from the N time units. In this case, the number of first positions can be determined by... It means, that is This represents the number of combinations of choosing M items from N items. Different combinations can correspond to different first positions as mentioned above. For example, when M is half of N, The value of M is the largest. This means that, with the number of N time units remaining constant, the closer the value of M is to N / 2, the more first positions can exist, and the more second information can be transmitted.

[0193] Therefore, if the network device has a higher spectral efficiency requirement, the value of M can be made as close as possible to N / 2. Conversely, the lower the spectral efficiency requirement, the closer the value of M can be to 1, or the closer it can be to the value of N. It can be seen that the network device can determine the values ​​of N and M that satisfy the corresponding spectral efficiency based on different spectral efficiencies.

[0194] The embodiments of this application can flexibly configure the values ​​of N and M in conjunction with spectrum efficiency, so as to meet the spectrum efficiency requirements during the wireless charging process of the terminal.

[0195] Optionally, if the first ratio between N and M remains constant, then the larger the values ​​of N and M, the better. The larger the value of N, the more possibilities there are for the first position, and the more additional second information can be carried, thus improving the spectral efficiency. Therefore, network devices can also determine the values ​​of N and M based on the spectral efficiency and the first ratio.

[0196] The following section will use the impact of different digital modulation schemes on spectral efficiency as an example to illustrate this point.

[0197] For example, digital modulation schemes can include binary phase shift keying (BPSK); and digital phase modulation schemes can include quadrature phase shift keying (QPSK). Different digital phase modulation schemes correspond to different spectral efficiencies. For instance, a BPSK symbol can carry 1 bit of data, while a QPSK symbol can carry 2 bits of data. It can be seen that more bits can be carried in a single symbol, meaning that QPSK has a higher spectral efficiency than BPSK.

[0198] Optionally, network devices can select a digital phase modulation scheme based on spectral efficiency requirements. Taking BPSK modulation as an example, different values ​​for N and M can be selected for different first PAPRs. The following sections will describe how network devices determine the values ​​of N and M based on the first PAPR and spectral efficiency in two scenarios.

[0199] Scenario 1 (The second signal carries the modulation symbol):

[0200] In this scenario, the second signal can simultaneously carry modulation symbols for transmitting fourth information. This fourth information can be communication information between the terminal and the network device. It is understood that this fourth information is different from the second information. Referring to Figure 12, the second signal transmitted by the network device over M time units can carry modulation symbols related to the fourth information, such as modulation symbol 1, modulation symbol 2, etc. The terminal can demodulate the modulation symbols carried by the second signal to obtain the corresponding fourth information. The modulation and demodulation processes of the modulation symbols can be implemented using relevant technologies, and will not be elaborated further in this embodiment.

[0201] In one possible implementation, for the BPSK scheme, if a second signal is not transmitted in a time unit, the information that could have been transmitted in that time unit will not be transmitted, meaning that the information carried by the signal in that time unit will be lost, such as losing 1 bit of information. Therefore, this embodiment can compensate for (fill in) the lost information using the second information associated with the first position. That is, the first position indicates the information that should have been transmitted in NM time units.

[0202] In this scenario, the second signal can carry a modulation symbol, which itself carries fourth information, and is associated with the second information through different first positions. Considering that the embodiments of this application satisfy the same spectral efficiency as traditional digital phase modulation schemes, the values ​​of N and M can be determined with reference to Table 2.

[0203] Table 2

[0204] Optionally, taking a first PAPR of 2 as an example, this means N is twice M. In other words, the network device can choose half of the N time units to send the second signal. For example, if N is 2 and M is 1, then... The possible bit value combinations are 10 and 01. These two bit value combinations can each be associated with two different pieces of second information, such as 0 and 1, i.e., 1 bit of information. Assume the modulation symbol carried by the second signal also carries 1 bit of information. This means that by sending the second signal in one of the two time units, 2 bits of information (i.e., 1 bit of the modulation symbol + 1 bit corresponding to different positions of the second signal) can be transmitted. This is the same as the information transmitted by sending one modulation symbol (each modulation symbol corresponding to 1 bit of information) in each of the two time units. Referring to Figure 13, assume a time period includes two time units. The left side of the arrow represents the traditional scheme of sending a signal in each time unit within the time period. For example, in the first time unit, modulation symbol 11 corresponds to 1 bit of information, and in the second time unit, modulation symbol 12 corresponds to 1 bit of information. It can be considered that this time period can transmit 2 bits of data. Referring to the right side of the arrow in Figure 13, a signal can be sent in some time units within any time period. For example, sending the second signal in the second time unit within the time period carries 1 bit of information corresponding to modulation symbol 12. Furthermore, based on the association between bit value combinations (such as 10 and 01) and second information (such as 0 and 1), the network device can determine the information content of 1 bit corresponding to the first position. Assuming that the first position is 01 and can be associated with the second information (0 or 1), this first position means carrying 1 bit of information. It can be considered that 2 bits of data can still be transmitted within this time period. It can be seen that with the first PAPR being 2, N being 2, and M being 1, the same spectral efficiency as BPSK can be achieved.

[0205] Similarly, taking the first PAPR equal to 2 as an example, if N is 4 and M is 2, then... The possible bit value combinations are 1100, 1010, 1001, 0110, 0101, and 0011. Considering there are two time units without the second signal being transmitted, this 2-bit data quantity can be associated with the different bit value combinations mentioned above, that is, carried through different first positions (i.e., possible bit value combinations). For example, the 2-bit data quantity can include 00, 01, 10, and 11, so any four of the above six bit value combinations can be chosen to be associated with this 2-bit data quantity. In some examples, for the above situation, the remaining two bit value combinations can also be associated with certain values ​​of the 2-bit data quantity. For example, refer to Table 3.

[0206] Table 3

[0207] It can be seen that when the second information is 00 or 01, it can be indicated by two different combinations of bit values. Table 3 above is only an exemplary description. In other examples, for instance, the first four rows of the correspondence in Table 3 can be selected, and the network device can determine not to send the second information using the remaining two combinations of bit values. Of course, the specific correspondence between bit value combinations and the second information can be determined according to the actual situation, and this application embodiment does not limit it.

[0208] Similar to the implementation process where N is 2 and M is 1, referring to Figure 14, assume a time period consists of 4 time units. The left side of the arrow represents the traditional scheme transmitting signals in each time unit within the time period. For example, in the first time unit, modulation symbol 21 corresponds to 1 bit of information; in the second time unit, modulation symbol 22 corresponds to 1 bit of information; in the third time unit, modulation symbol 23 corresponds to 1 bit of information; and in the fourth time unit, modulation symbol 24 corresponds to 1 bit of information. It can be considered that this time period can transmit 4 bits of data. Referring to the right side of the arrow in Figure 14, signals can be transmitted in some time units within any two time periods. For example, a second signal can be transmitted in the second and fourth time units within a time period. The second signal transmitted in the second time unit carries 1 bit of information corresponding to modulation symbol 22, and the second signal transmitted in the fourth time unit carries 1 bit of information corresponding to modulation symbol 24. Referring to the correlation shown in Table 3, the network device can determine the 2 bits of information corresponding to the first position. Assuming the first position is 0101 and can be associated with the second information (00), this first position means carrying 2 bits of information. It can be considered that this time period can still transmit 4 bits of data. In other words, the amount of information that would normally be transmitted in a time unit where the second signal is not sent can be indicated by different first position methods, thus achieving the same spectral efficiency as BPSK.

[0209] Optionally, taking the first PAPR equal to 3 / 2 as an example, for instance, if N is 3 and M is 2, then... The possible bit value combinations are 110, 101, and 011. Similarly, considering that there is one time unit without transmitting the second signal, this 1 bit of data can be associated with the above different bit value combinations, that is, carried by different first positions (i.e., possible bit value combinations). For example, the 1 bit of data can include 0 and 1, so any two of the above three bit value combinations can be selected to be associated with the 1 bit of data. In some examples, for the above situation, the remaining 1 bit value combination can also be associated with certain values ​​in the 1 bit of data. The implementation process can refer to the description when the first PAPR is 2 and N is 4, and will not be repeated in the embodiments of this application. In this case, the same spectral efficiency as BPSK can be achieved. The specific implementation process can refer to the description of the embodiment where the first PAPR is equal to 2, N is 4, and M is 2, and will not be repeated in the embodiments of this application.

[0210] Optionally, taking a PAPR of 4 as an example, this means N / M equals 4, that is, N is 4 times M. Calculations show that when N equals 48 and M equals 12, There are 36 time units when the second signal is not transmitted, so the amount of data in these 36 bits is 68719476736. This can satisfy the requirement that each value of the above 36 bits can be associated with one or more combinations of the different bit values, thereby achieving the same spectral efficiency as BPSK. For a detailed implementation process, please refer to the description of the embodiment where the first PAPR is 2, N is 4, and M is 2. The embodiments in this application will not be repeated here.

[0211] Of course, for cases where spectral efficiency requirements are not high, let's still take a first PAPR of 4 as an example, assuming N is 4 and M is 1. Referring to Table 1, we can see that different first positions can only indicate 2 bits of data, while there are 3 time units without transmitting the second signal, meaning that some data cannot be additionally indicated by the first position. Accordingly, the spectral efficiency can reach a portion of the original BPSK efficiency. It is understandable that although the spectral efficiency is lower than the original BPSK, an N value of 4 is smaller than an N value of 48, meaning a shorter time period, which correspondingly reduces the hardware requirements of the terminal equipment.

[0212] Regarding the BPSK scheme described above, the example illustrates a relatively smaller time period while meeting the BPSK spectrum requirements, thereby reducing the demands on terminal hardware. Of course, to meet the first PAPR and spectral efficiency requirements, a larger time period can also be used, i.e., larger values ​​for N and M; this application does not limit this.

[0213] In one possible implementation, for the QPSK scheme, if there is a time unit in which the second signal is not transmitted, then the information that could have been transmitted in that time unit will not be transmitted, meaning that 2 bits of information will be lost. Considering that the second signal in this scenario can carry modulation symbols, the fourth information carried by the modulation symbols themselves, and the association of the second information with different first positions, and taking into account that the embodiments of this application achieve the same spectral efficiency as conventional digital phase modulation schemes, the values ​​of N and M can be determined with reference to Table 4.

[0214] Table 4

[0215] Optionally, taking a first PAPR of 4 / 3 as an example, this means N / M = 4 / 3. For instance, if N is 4 and M is 3, then... The possible bit value combinations are 1110, 1101, 1011, and 0111. In the QPSK scheme, the time unit where the second signal is not transmitted corresponds to 2 bits of information. This 2 bits of information can be indicated by the above four bit value combinations, thereby achieving the same spectral efficiency as QPSK by carrying this 2 bits of information through the first position. For the specific implementation process, please refer to the description of the embodiment where the first PAPR is equal to 2, N is 4, and M is 2. The difference lies in the different association between the first position and the second information, which will not be repeated in the embodiments of this application.

[0216] Understandably, since QPSK has a higher spectral efficiency than BPSK, it can transmit a higher amount of data per time unit. This means that when some time units do not transmit the second signal, more data of the second information needs to be associated with the first position. In other words, more first positions are needed to indicate this second information. However, a higher PAPR means fewer time units out of N are used to transmit the second signal, i.e., a smaller M. Correspondingly, the larger N is than M, the more... This may not be able to meet the data volume requirements of the second information that needs to be transmitted additionally. Therefore, for scenarios with higher spectral efficiency requirements, a lower PAPR value can be used to meet the higher spectral efficiency demands.

[0217] Scenario 2 (Second signal does not carry modulation symbols):

[0218] In this case, it can be assumed that the second signal does not need to carry modulation symbols for transmitting the fourth information. Referring to Figure 15, similar to Figure 12, the difference is that no modulation symbols are carried on the second signal.

[0219] In one possible implementation, for the BPSK scheme, given that the second signal in this scenario does not carry modulation symbols, it means that the information cannot be indicated by modulation symbols. Instead, the second information is additionally indicated by different first positions, and the corresponding spectral efficiency will reach a portion of that of BPSK. See Table 5 for reference.

[0220] Table 5

[0221] Optionally, taking a first PAPR of 2 as an example, this means N is twice M. That is, the network device can choose half of the N time units to send the second signal. Assuming N is 2 and M is 1, then... This means that an additional 1 bit of information can be carried through different first positions. Since two time units could originally transmit 2 bits of data, the spectral efficiency of this method is half that of BPSK, i.e., half the spectral efficiency of BPSK. Referring to Figure 16, similar to Figure 13, the difference is that the transmitted second signal does not carry modulation symbols. This means that instead of transmitting 2 bits of data per time period, it becomes transmitting 1 bit of data per time period through the first position, i.e., half the spectral efficiency of BPSK.

[0222] Alternatively, assuming N is 8 and M is 4, then Therefore, these 70 first positions can be used to indicate a 6-bit data quantity. Compared to the original 8 time units that could transmit 8 bits of data, the spectral efficiency reaches 3 / 4 of BPSK.

[0223] Alternatively, assuming N is 28 and M is 14, then So, this The first position can be used to indicate a data volume of 25 bits. Compared to the original 28 time units that can transmit 28 bits of data, the spectral efficiency can reach approximately 9 / 10 of BPSK.

[0224] It can be seen that for scenario 2, with the first PAPR unchanged, the higher the spectral efficiency requirement, the larger the time period can be selected, that is, the larger N and M can be selected.

[0225] It is understood that the above only provides a few possible scenarios affecting the values ​​of N and M. In other examples, the network device can also determine the values ​​of N and M according to protocol predefined values. Alternatively, the network device can determine the values ​​of N and M based on its own implementation. For example, the network device can determine the values ​​based on the distance between the terminal and the network device. If this distance is greater than or equal to a distance threshold, then the terminal can be considered to be far from the network device. To ensure the terminal's charging efficiency, a shorter time period can be selected, allowing the terminal to receive the second signal more frequently. Alternatively, the network device can select a shorter time period based on the terminal's hardware capabilities. If the terminal hardware does not support scenarios with longer time periods, then a shorter time period can be selected. Of course, the above is only an exemplary description, and the embodiments of this application do not limit this.

[0226] The embodiments of this application can determine the values ​​of N and M based on a first ratio and spectral efficiency. This ensures wireless charging while meeting the PAPR requirements.

[0227] In one possible implementation, after determining the first ratio based on the first PAPR, the network device can determine the first location based on the second information that needs to be transmitted. For example, the network device can determine the first location based on the second information and a first mapping relationship. For instance, the first mapping relationship can be used to indicate the mapping relationship between different first locations and different pieces of second information. Through the first mapping relationship and the second information that needs to be transmitted, the network device can determine how to send the second signal through which first location, so as to indicate the second information that needs to be transmitted through that first location.

[0228] Optionally, the first mapping relationship can be a mapping relationship between a first position and second information. For example, a first bit sequence is associated with a first position, and a second bit sequence is associated with second information. Then, the first mapping relationship can be expressed as a mapping relationship between the first bit sequence and the second bit sequence. Referring to Tables 1 and 3 above, possible first mapping relationships are shown. The first bit sequence can be a combination of bit values ​​in Tables 1 and 3. The second bit sequence can be the bit sequence corresponding to the second information in Tables 1 and 3. This embodiment establishes a mapping relationship between the first bit sequence associated with the first position and the second bit sequence associated with the second information, thereby associating the first position with the second information. This allows the second information to be carried through different first positions, ensuring that while powering the wireless device, spectral efficiency can also be improved. Of course, the first bit sequence is only one possible representation of the first position. The first position can also be represented in other forms, such as by a value, identity (ID), index, etc. Similarly, the second bit sequence is only one possible representation of the second information. The second information can also be represented in other forms, such as by a certain value, identity (ID), index, etc., which are not limited in the embodiments of this application.

[0229] In various embodiments of this application, the first bit sequence may also be referred to as a time modulation pattern, a pulse pattern, etc., and this application does not limit it.

[0230] Of course, for different This means there are different numbers of first positions. Therefore, for different... This can correspond to different first mapping relationships. For example, a network device can determine the value of N and the value of M based on the method described in the foregoing embodiments. Based on the values ​​of N and M, the possible number of first positions can be determined, i.e., the... Network devices according to this The corresponding first mapping relationship, and the second information that may need to be sent, determine which first position to use to send the second signal.

[0231] In various embodiments of this application, one form of representation of the first mapping relationship can be the mapping relationship tables shown in Tables 1 and 3. In other examples, the first mapping relationship can also adopt other forms of representation with the same effect, such as key-value pairs, arrays, etc., which are not limited in the embodiments of this application.

[0232] In this application embodiment, the network device can determine a first location that can carry the second information based on the second information, and send a second signal by the location of M data units in the first location, thereby realizing additional indication of the second information and improving spectrum efficiency.

[0233] Optionally, the network device can determine a second bit sequence related to the second information based on the second information. Referring to Tables 1 and 3, the network device can determine the possible bit sequence corresponding to the second information to be transmitted. The network device determines the first bit sequence corresponding to the second bit sequence based on the first mapping relationship between the second bit sequence and the first bit sequence. Based on the first bit and the second bit in the first bit sequence, the network device can determine the first position. M time units correspond to the first bit, and NM time units correspond to the second bit. That is, the position of the first bit in the first bit sequence is the position of the M time units. Correspondingly, the position of the second bit in the first bit sequence is the position of the NM time units. The length of the first bit sequence is N, which is the total number of time units included in one time period.

[0234] It is worth noting that in the various embodiments of this application, the first bit and the first bit sequence are different concepts, and the second bit and the second bit sequence are also different concepts. The first bit refers to the bit value corresponding to the M time units used to transmit the second signal. Similarly, the second bit refers to the bit value corresponding to the NM time units where no second signal is transmitted. For example, the first bit is 0 and the second bit is 1; or, the first bit is 1 and the second bit is 0. The first bit sequence is composed of the first bit and the second bit, and the first bit and the second bit form different first bit sequences based on different first positions. The second bit sequence is the bit sequence corresponding to the second information, and this second bit sequence itself is independent of the first bit and the second bit.

[0235] This application provides a specific implementation process for a network device to determine a first location based on second information, which can improve spectrum efficiency by additionally indicating the second information through the first location.

[0236] In one possible implementation, the terminal can determine, through the timestamp (or time unit ID, index, etc.) corresponding to the second signal, which positions (i.e., the first positions) of the M time units receiving the second signal are located within the N time units. Then, based on the aforementioned first mapping relationship and the first position, the terminal can determine the second information corresponding to that first position. This achieves the additional carrying of second information through the first position. The terminal can perform subsequent related operations based on this second information, such as performing corresponding operations according to the specific content of the second information. The specific operations performed can be determined according to the actual situation, and this application embodiment does not limit the scope of the specific operations.

[0237] In this embodiment of the application, the terminal can determine the additional second information carried based on the first location, thereby improving spectrum efficiency.

[0238] Optionally, the terminal can determine the first bit sequence based on the first bit, the second bit, and the first position. For example, the terminal can determine the order of the first and second bits based on the timestamps of the received second and third signals, thus obtaining the first bit sequence. The terminal then determines the second bit sequence associated with the first bit sequence based on this first bit sequence and the aforementioned first mapping relationship. The terminal can then determine additional information indicating the first position based on this second bit sequence. The process of the terminal determining the second information can be understood as the reverse operation of the process by which the network device determines the first position.

[0239] This application provides a specific implementation process for a terminal to determine second information based on a first location, which can improve spectrum efficiency by additionally indicating second information through the first location.

[0240] In one possible implementation, for network devices and terminals, the determination of the aforementioned first mapping relationship could be based on protocol predefinition. For example, the first mapping relationship can be pre-configured through protocol predefinition. This method requires no additional instructions, saving signaling overhead.

[0241] Alternatively, for the terminal, another possible way to determine the aforementioned first mapping relationship is that the terminal receives third information from the network device. Accordingly, the network device can send the third information to the terminal. For example, this third information can be used to indicate the first mapping relationship.

[0242] Alternatively, for network devices, another possible way to determine the aforementioned first mapping relationship is that the network device receives third information from other network devices. For example, the network device is an access network device, and the other network devices are core network devices. Another example is that the first access network device receives third information from a second access network device; this embodiment of the application does not limit the scope of the problem.

[0243] This application provides multiple methods for determining the first mapping relationship, so as to determine the first mapping relationship in different scenarios using a method applicable to a certain communication scenario, and then, based on the first mapping relationship, to realize the additional indication of second information through the first position, thereby improving spectrum efficiency.

[0244] In the communication method provided in this application embodiment, considering a scenario of wireless charging using continuous transmission of single-tone signals, with the average power requirement remaining unchanged, the low PAPR results in a low peak power, which is detrimental to the rectifier of the receiving device in rectifying and storing the charging signal, thus limiting the energy conversion efficiency to a certain extent. Therefore, in determining the second signal, the network device can determine the energy of the second signal based on the first PAPR and the first average power. In other words, the energy of the second signal is related to the first PAPR and the first average power.

[0245] For example, the first average power can be pre-configured. For instance, network devices can determine the first average power based on any possible factors such as the network environment, resource allocation, terminal hardware capabilities, network device hardware capabilities, and power control requirements. This means that within a given time period, regardless of the power used or the time of signal transmission, the first average power requirement must be met.

[0246] Therefore, given the aforementioned first average power, the network device can determine the energy (i.e., power) of the second signal based on the PAPR. For example, the network device can determine the energy (i.e., power) of the second signal based on the aforementioned first PAPR. For instance, the network device can use the product of the first PAPR and the first average power as the energy (i.e., power) of the second signal. Since PAPR is defined as the ratio of peak power to average power, the result of this product is equal to the peak power. Referring to Figure 17, assuming a time period includes 4 time units, and the average power of this time period is 1, using the conventional continuous transmission of charging signals (as shown by the arrow to the left in Figure 17), assuming the power of each second signal is the same, it means that the peak power of each time unit is 1, and the total power corresponding to that time unit is 4. However, in this embodiment, the second signal is transmitted in partial time units (as shown by the arrow to the right in Figure 17), such as transmitting the second signal in the last time unit of a time period. Then, while ensuring that the average power of this time period remains 1, the peak power of the second signal transmitted in the fourth time unit can be 4. It can be seen that network devices can send a second signal at peak power. Compared with the traditional scenario of continuous transmission of single-tone signals for wireless charging, it can wirelessly charge the terminal with greater power, which is more conducive to the wireless device rectifying the second signal to improve energy conversion efficiency.

[0247] In other examples, the energy (i.e. power) of the second signal may be less than the product of the first PAPR and the first average power, which is not limited in the embodiments of this application.

[0248] In other examples, the network device may also determine the energy (i.e., power) of the second signal based on a PAPR other than the first PAPR. For instance, if the first PAPR is indicated by the terminal, and the network device has a pre-configured reference PAPR, then the network device can determine the energy (i.e., power) of the second signal based on that reference PAPR. Alternatively, the network device may determine a second PAPR based on the first PAPR and the reference PAPR, and the network device can determine the energy (i.e., power) of the second signal based on that second PAPR. This application does not limit the scope of the embodiments.

[0249] In the communication method provided in this application embodiment, considering that the first PAPR can be informed to the network device by the terminal device, the network device can also configure multiple possible PAPRs for the terminal, so that the terminal can select the first PAPR applicable to the terminal. Therefore, the method may further include: the network device sending at least one fourth signal to the terminal. Correspondingly, the terminal receives at least one fourth signal from the network device. The terminal can perform signal measurement on the at least one fourth signal to obtain the signal measurement result of the at least one fourth signal. Optionally, different fourth signals correspond to different PAPRs. The terminal can determine first information based on the measurement result of at least one fourth signal. That is, the terminal can select the first PAPR applicable to the terminal. Optionally, the second signal can be one of the at least one fourth signal. For example, if the second signal does not carry a modulation symbol, it can be considered as one of the at least one fourth signal.

[0250] Optionally, the terminal itself may not be aware of the specific PAPR corresponding to different fourth signals. However, the terminal can obtain the measurement results of the fourth signal by measuring it, and based on the measurement results of different fourth signals, it can know which fourth signal is more conducive to wireless charging. Alternatively, it can determine which fourth signal can meet the terminal's needs for charging, such as based on the terminal's hardware capabilities, pre-configured charging constraints, etc., which are not limited in this embodiment. The terminal can feed back the fourth signal through first information. For example, the first information can indicate the index of the time unit. For the network device, the network device can determine the corresponding time unit based on the index. The network device itself knows which fourth signal was sent in which time unit. And, since the fourth signal is configured and sent by the network device, it means that the network device also knows the correspondence between the fourth signal and PAPR, that is, which fourth signal corresponds to which PAPR. Therefore, the network device can determine the first PAPR through the fourth signal fed back by the terminal.

[0251] In other examples, the terminal may pre-configure the relationship between the fourth signal and PAPR, or the network device may indicate the relationship between the fourth signal and PAPR to the terminal. Alternatively, the terminal may directly indicate the first PAPR through the first information; this application does not limit this approach.

[0252] The embodiments of this application can provide a variety of optional PAPRs for the terminal, so that the terminal can flexibly select the first PAPR suitable for the terminal.

[0253] Optionally, after the network device completes the configuration described in the above embodiments according to the first PAPR indicated by the first information, such as configuring the length N of the time period, the number of time units (i.e., M) in the N time units to send the second signal, the time-frequency resources corresponding to the second signal, the first mapping relationship, etc., the network device can send fifth information to the terminal, which can be used to indicate the above configuration parameters. This ensures that the terminal can accurately receive the second signal and complete wireless charging.

[0254] In various embodiments of this application, the second signal can be matched with a single-tone signal, i.e., it uses a carrier wave of a single frequency. The second signal may or may not carry modulation symbols; this application does not limit this. When the second signal uses a carrier wave of a single frequency, no additional bandwidth requirement is introduced, ensuring the efficiency of air interface power transmission.

[0255] For example, the second signal can be other signals, such as carriers containing multiple superimposed frequencies. In this case, the average power of the second signal itself only needs to satisfy the energy of the second signal as described above. This means that there may be higher peak energy within the time unit corresponding to the second signal, which is not limited in the embodiments of this application.

[0256] Figure 18 is a schematic diagram of a communication method provided by an embodiment of this application.

[0257] This communication process can be applied to, but is not limited to, the communication scenarios shown in Figures 1 and 3-8. The method shown in Figure 18 can be considered a more specific implementation of the method shown in Figure 9, and this method may include the following steps:

[0258] S201, the terminal sends the sixth information to the network device. Accordingly, the network device receives the sixth information from the terminal.

[0259] For example, the sixth piece of information can also be called a wireless power transfer request, a wireless charging request, or a power transmission request, etc., and this application embodiment does not limit it. For example, the terminal can initiate a wireless power transfer request to the network device to request the network device to transfer energy to the terminal via wireless signals.

[0260] Optionally, network devices may include access network devices and core network devices. For example, the RU of the access network device receives the uplink radio frequency signal from the terminal, processes and down-converts it, and sends the baseband physical layer information to the DU. The DU demodulates the information and obtains the charging request sent by the terminal. The DU sends the request to the CU, and the CU requests the core network device or makes a decision independently to send a charging waveform to the terminal.

[0261] S202, the network device sends at least one fourth signal to the terminal. Accordingly, the terminal receives at least one fourth signal from the network device.

[0262] For example, the fourth signal can also be called a downlink charging waveform, charging waveform, etc., and this application does not limit it in the embodiments. For example, the network device can send multiple downlink charging waveforms corresponding to different PAPRs, so that the terminal can traverse different PAPR waveforms and perform subsequent terminal detection and feedback.

[0263] Optionally, the CU controls the DU and RU to transmit a basic continuous charging waveform.

[0264] S203, the terminal acquires the measurement result of at least one fourth signal.

[0265] S204, the terminal determines the first information based on the measurement result of at least one fourth signal.

[0266] For example, a terminal can obtain PAPR parameters applicable to that terminal through energy detection.

[0267] S205, the terminal sends the first information to the network device. Accordingly, the network device receives the first information from the terminal.

[0268] For example, the terminal can indicate the PAPR value (i.e., the first PAPR) of the downlink charging waveform (i.e., the second signal) of the network device through uplink feedback (i.e., the first information).

[0269] Optionally, the first information may include a first PAPR, or the first information may indicate other information related to the first PAPR, so that the network device can determine the first PAPR based on the other information. For example, the other information may be power information, time information, etc. For example, the time information may be a timestamp, and the network device can determine which second signal was transmitted based on the timestamp, and thus determine the first PAPR.

[0270] Optionally, the CU can receive terminal feedback via the DU and RU.

[0271] It is understood that the specific implementation process of S205 can be referred to the description of the relevant embodiments of S101, and will not be repeated in the embodiments of this application.

[0272] S206, the network device determines the fifth information based on the first information.

[0273] For example, network devices can determine terminal data (which could be second or fourth information) from the core network that needs to be transmitted to the terminal via the downlink. Network devices can configure the corresponding time-frequency resources.

[0274] Optionally, the CU can instruct the RU to adjust the downlink charging waveform parameters. The CU can combine communication data to instruct the method of combining data modulation with the first position; or it can carry communication information only through the first position.

[0275] S207, the network device sends the fifth information to the terminal. Correspondingly, the terminal receives the fifth information from the network device.

[0276] For example, a network device can indicate to a terminal via a downlink control channel resources related to downlink data transmission, as well as configuration information (i.e., the fifth information) related to a second signal. Of course, the fifth information may include the third information.

[0277] S208, the network device sends a second signal to the terminal. Correspondingly, the terminal receives a first signal. The first signal includes the second signal from the network device.

[0278] For example, a network device sends downlink data waveforms (i.e., the second signal) while simultaneously transmitting downlink data (which could be the second or fourth information) and energy.

[0279] Optionally, the RU generates a downlink communication power transmission waveform according to the CU's instructions, and sends the corresponding waveform to the terminal.

[0280] It is understood that the specific implementation process of S208 can be referred to the description of the relevant embodiments of S102, and will not be repeated in the embodiments of this application.

[0281] S209, the terminal stores energy based on the first signal.

[0282] S210, the terminal demodulates the data based on the first signal.

[0283] Optionally, steps S201, S202, S203, S204, S206, S207, and S210 are optional steps and can be executed or not executed depending on the actual situation. For example, some information can be pre-configured in the terminal or network device, so some or all of these optional steps can be omitted. For another example, when the second signal does not carry modulation symbols, the terminal may not need to perform data demodulation. This application does not limit the scope of the embodiments.

[0284] It is understood that the specific implementation process of each step S201 to S210 above can be referred to the description of the relevant embodiments above, and will not be repeated in the embodiments of this application.

[0285] The embodiments of this application, by combining different first positions and optionally combining data modulation, can effectively improve the system's spectral efficiency, rectification efficiency, and charging efficiency.

[0286] It is understood that each of the above embodiments of this application can be implemented independently or in combination with each other; there is no absolute subordinate relationship between the embodiments, and they can be combined with each other under any conditions to obtain the corresponding effect.

[0287] It is understood that, in order to achieve the functions in the above embodiments, the network device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, based on the units and method steps described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0288] Figures 19 and 20 are schematic diagrams illustrating possible communication devices provided in embodiments of this application. These communication devices can be used to implement the functions of terminals or network devices in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of this application, the communication device can be the RAN node 110 shown in Figure 1, wherein the RAN node can also be referred to as an access network device or a network device. The communication device can also be a module (such as a chip) applied to a network device. The communication device can be the terminal 120 shown in Figure 1, and the communication device can also be a module (such as a chip) applied to the terminal.

[0289] In this embodiment, the device for implementing the terminal's functions can be a terminal itself, or a device capable of supporting the terminal in implementing those functions, such as a chip system. This device can be installed in the terminal or used in conjunction with the terminal. Similarly, the device for implementing the network device's functions can be a network device, or a device capable of supporting the network device in implementing those functions, such as a chip system. This device can be installed in the network device or used in conjunction with the network device.

[0290] In this embodiment of the application, the chip system may be composed of chips, or it may include chips and other discrete devices.

[0291] As shown in Figure 19, the communication device 1900 includes a processing unit 1910 and a transceiver unit 1920. The communication device 1900 is used to implement the functions of the terminal and network device in the method embodiments shown in Figures 9 and 18 above.

[0292] When the communication device 1900 is used to implement the functions of the terminal in the method embodiment shown in FIG9: the transceiver unit 1920 is used to send first information. The transceiver unit 1920 is also used to receive a first signal. The communication device 1900 may further include a processing unit 1910 for performing any processing steps other than sending and receiving.

[0293] When the communication device 1900 is used to implement the functions of the network device in the method embodiment shown in FIG9: the transceiver unit 1920 is used to receive first information. The processing unit 1910 is used to determine a second signal based on the first PAPR. The transceiver unit 1920 is also used to transmit the second signal within M time units out of N time units.

[0294] For a more detailed description of the processing unit 1910 and the transceiver unit 1920, please refer to the relevant description of the method embodiments shown in Figures 9 and 18.

[0295] As shown in Figure 20, the communication device 2000 includes a processor 2010 and an interface circuit 2020. The processor 2010 and the interface circuit 2020 are coupled together. It is understood that the interface circuit 2020 can be a transceiver or an input / output interface. Optionally, the communication device 2000 may also include a memory 2030 for storing instructions executed by the processor 2010, or storing input data required by the processor 2010 to execute instructions, or storing data generated after the processor 2010 executes instructions. Sometimes, the interface circuit 2020 can also be understood as part of the processor 2010, in which case the communication device 2000 includes the processor 2010.

[0296] When the communication device 2000 is used to implement the methods shown in FIG9 and FIG18, the processor 2010 is used to implement the functions of the processing unit 1910, and the interface circuit 2020 is used to implement the functions of the transceiver unit 1920.

[0297] When the aforementioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information from the network device, which can be understood as the information being first received by other modules (such as an RF module or antenna) in the terminal, and then sent to the terminal chip by these modules. The terminal chip sends information to the network device, which can be understood as the information being sent down to other modules (such as an RF module or antenna) in the network device, and then sent back to the network device by these modules.

[0298] When the aforementioned communication device is a chip used in a network device, the network device chip implements the functions of the network device in the above method embodiments. The network device chip receives information from the terminal, which can be understood as the information being first received by other modules (such as an RF module or antenna) in the network device, and then sent to the network device chip by these modules. The network device chip sends information to the terminal, which can be understood as the information being sent down to other modules (such as an RF module or antenna) in the terminal, and then sent back to the terminal by these modules.

[0299] In this application, entity A sends information to entity B, either directly or indirectly through other entities. Similarly, entity B receives information from entity A, either directly or indirectly through other entities. Entities A and B can be RAN nodes or terminals, or modules within RAN nodes or terminals. Information transmission and reception can be between RAN nodes and terminals, such as between a base station and a terminal; between two RAN nodes, such as between a CU and a DU; or between different modules within a single device, such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.

[0300] It is understood that the processor in the embodiments of this application can be a central processing unit (CPU), or one or more of other general-purpose processors, digital signal processors (DSPs), microprocessor units (MPUs), microcontroller units (MCUs), graphics processing units (GPUs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), artificial intelligence processors (AI processors), or neural processing units (NPUs); or, the processor mentioned in the embodiments of this application can be application-specific integrated circuits (ASICs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components (or parts), or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor, etc.

[0301] The method steps in the embodiments of this application can be implemented in hardware or in software instructions executable by a processor. The software instructions can consist of corresponding software modules, which can be stored in memory, such as volatile memory and / or non-volatile memory. The non-volatile memory can be flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), or electrically erasable programmable read-only memory (EEPROM). The volatile memory can be a cache or random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes a variety of forms, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). The memory can also be in registers, hard disks, portable hard disks, compact disc (CD) ROMs, or any other form of storage medium well known in the art.

[0302] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) can be integrated into the processor. An exemplary storage medium is coupled to the processor, enabling the processor to read information from and write information to the storage medium. The storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a base station or terminal. The processor and storage medium can also exist as discrete components in a base station or terminal.

[0303] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0304] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0305] In 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 represent: 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 an "or" relationship between the preceding and following related objects; in the formulas of this application, the character " / " indicates a "division" relationship between the preceding and following related objects. "Including at least one of A, B, and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B, and C.

[0306] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0307] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0308] The terms "first" and "second," etc., used in the specification and drawings of the embodiments of this application are used to distinguish different objects or to distinguish different processing of the same object. The terms "first" and "second," etc., can distinguish identical or similar items with substantially the same function and effect. For example, "first device" and "second device" are merely to distinguish different devices and do not limit their order. Those skilled in the art will understand that the terms "first" and "second," etc., do not limit the quantity or execution order, and that "first" and "second," etc., do not necessarily imply that they are different.

[0309] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0310] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0311] It is understood that the term "embodiment" used throughout the specification means that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of the embodiments of this application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It is understood that in the various embodiments of the embodiments of this application, the 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.

[0312] It is understood that in the embodiments of this application, "...when" and "if" both refer to the corresponding processing that will be carried out under certain objective circumstances, and are not limited to a time, nor do they require a judgment action during implementation, nor do they imply any other limitations.

[0313] It is understood that some optional features in the embodiments of this application can be implemented independently in certain scenarios without relying on other features, such as the current solution on which they are based, to solve the corresponding technical problems and achieve the corresponding effects. Alternatively, they can be combined with other features as needed in certain scenarios. Correspondingly, the apparatus given in the embodiments of this application can also implement these features or functions, which will not be elaborated here.

[0314] In the embodiments of this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. In the various embodiments of this application, and in the various implementation methods / methods / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various implementation methods / methods / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various implementation methods / methods / implementations within each embodiment can be combined to form new embodiments, implementation methods, methods, or implementation approaches based on their inherent logical relationships. The following descriptions of the embodiments of this application do not constitute a limitation on the scope of protection of the embodiments of this application.

Claims

1. A communication method, characterized in that, The method includes: Send first information, wherein the first information is used to indicate a first peak-to-average power ratio (PAPR); A first signal is received, wherein the first signal comprises N time units, a second signal exists within M time units of the N time units, and a third signal exists within NM time units of the N time units, wherein the energy of the second signal is greater than or equal to a first threshold, and the energy of the third signal is less than or equal to a second threshold, wherein N and / or M are determined according to the first PAPR.

2. The method according to claim 1, characterized in that, The N and / or M are determined according to the first PAPR, including: a first ratio between the N and the M is determined according to the first PAPR.

3. The method according to claim 2, characterized in that, The value of N and / or the value of M are related to the spectral efficiency.

4. The method according to claim 3, characterized in that, The value of N and / or the value of M are determined based on the spectral efficiency and the first ratio.

5. The method according to any one of claims 1-4, characterized in that, The energy of the second signal is related to the first PAPR and the first average power.

6. The method according to any one of claims 1-5, characterized in that, The first threshold is related to the energy of the third signal.

7. The method according to any one of claims 1-6, characterized in that, The first position is the position of the M time units in the N time units, or the first position is the position of the NM time units in the N time units; the first position is related to the second information, wherein the second information is the communication information between the terminal and the network device.

8. The method according to claim 7, characterized in that, The method further includes: The second information is determined based on the first position and the first mapping relationship, wherein the first mapping relationship is used to indicate the mapping relationship between different first positions and different second information.

9. The method according to claim 8, characterized in that, The first mapping relationship is a mapping relationship between a first bit sequence and a second bit sequence, wherein the first bit sequence is related to the first position and the second bit sequence is related to the second information.

10. The method according to claim 9, characterized in that, The step of determining the second information based on the first position and the first mapping relationship includes: The first bit sequence is determined based on the first bit, the second bit, and the first position, wherein the M time units correspond to the first bit, and the NM time units correspond to the second bit; The second bit sequence is determined based on the first bit sequence and the first mapping relationship; The second information associated with the second bit sequence is determined based on the second bit sequence.

11. The method according to claim 10, characterized in that, The first bit is 1 and the second bit is 0; or, the first bit is 0 and the second bit is 1.

12. The method according to any one of claims 8-11, characterized in that, The first mapping relationship is determined by at least one of the following methods: Determined based on predefined protocols; or, Receive third information, which is used to indicate the first mapping relationship.

13. The method according to any one of claims 1-12, characterized in that, The method further includes: Acquire signal measurement results for at least one fourth signal, wherein different fourth signals correspond to different PAPRs; The first information is determined based on the measurement results of the at least one fourth signal.

14. A communication method, characterized in that, The method includes: Receive first information, wherein the first information is used to indicate a first peak-to-average power ratio (PAPR); A second signal is determined based on the first PAPR, wherein the energy of the second signal is greater than or equal to a first threshold. The second signal is transmitted within M time units out of N time units, wherein N and / or M are determined according to the first PAPR.

15. The method according to claim 14, characterized in that, The method further includes: A first ratio between N and M is determined based on the first PAPR.

16. The method according to claim 15, characterized in that, The value of N and / or the value of M are related to the spectral efficiency.

17. The method according to claim 16, characterized in that, The method further includes: determining the value of N and / or the value of M based on the spectral efficiency and the first ratio.

18. The method according to any one of claims 14-17, characterized in that, The method further includes: The energy of the second signal is determined based on the first PAPR and the pre-configured first average power.

19. The method according to any one of claims 14-18, characterized in that, The first threshold is related to the energy of the third signal.

20. The method according to any one of claims 14-19, characterized in that, The first position is the position of the M time units in the N time units, or the first position is the position of the NM time units in the N time units; the first position is related to the second information, wherein the second information is the communication information between the terminal and the network device.

21. The method according to claim 20, characterized in that, The method further includes: The first position is determined based on the second information and the first mapping relationship, wherein the first mapping relationship is used to indicate the mapping relationship between different first positions and different pieces of the second information.

22. The method according to claim 21, characterized in that, The first mapping relationship is a mapping relationship between a first bit sequence and a second bit sequence, wherein the first bit sequence is related to the first position and the second bit sequence is related to the second information.

23. The method according to claim 22, characterized in that, Determining the first position based on the second information and the first mapping relationship includes: The second bit sequence related to the second information is determined based on the second information; The first bit sequence is determined based on the second bit sequence and the first mapping relationship; The first position is determined based on the first bit sequence and the first bit and the second bit, wherein the M time units correspond to the first bit and the NM time units correspond to the second bit.

24. The method according to claim 23, characterized in that, The first bit is 1 and the second bit is 0; or, the first bit is 0 and the second bit is 1.

25. The method according to any one of claims 21-24, characterized in that, The first mapping relationship is determined by at least one of the following methods: Determined based on predefined protocols; or, Receive third information, which is used to indicate the first mapping relationship.

26. The method according to any one of claims 14-25, characterized in that, The method further includes: Send at least one fourth signal, wherein different fourth signals correspond to different PAPRs.

27. A communication device, characterized in that, The device includes: A transceiver unit is configured to transmit first information, wherein the first information is used to indicate a first peak-to-average power ratio (PAPR); The transceiver unit is further configured to receive a first signal, wherein the first signal comprises N time units, a second signal exists within M time units of the N time units, a third signal exists within NM time units of the N time units, the energy of the second signal is greater than or equal to a first threshold, the energy of the third signal is less than or equal to a second threshold, and N and / or M are determined according to the first PAPR.

28. The apparatus according to claim 27, characterized in that, The N and / or M are determined according to the first PAPR, including: a first ratio between the N and the M is determined according to the first PAPR.

29. The apparatus according to claim 28, characterized in that, The value of N and / or the value of M are related to the spectral efficiency.

30. The apparatus according to claim 29, characterized in that, The value of N and / or the value of M are determined based on the spectral efficiency and the first ratio.

31. The apparatus according to any one of claims 27-30, characterized in that, The energy of the second signal is related to the first PAPR and the first average power.

32. The apparatus according to any one of claims 27-31, characterized in that, The first threshold is related to the energy of the third signal.

33. The apparatus according to any one of claims 27-32, characterized in that, The first position is the position of the M time units in the N time units, or the first position is the position of the NM time units in the N time units; the first position is related to the second information, wherein the second information is the communication information between the terminal and the network device.

34. The apparatus according to claim 33, characterized in that, The device further includes: The processing unit is configured to determine the second information based on the first position and the first mapping relationship, wherein the first mapping relationship is used to indicate the mapping relationship between different first positions and different second information.

35. The apparatus according to claim 34, characterized in that, The first mapping relationship is a mapping relationship between a first bit sequence and a second bit sequence, wherein the first bit sequence is related to the first position and the second bit sequence is related to the second information.

36. The apparatus according to claim 35, characterized in that, The processing unit is also used for: The first bit sequence is determined based on the first bit, the second bit, and the first position, wherein the M time units correspond to the first bit, and the NM time units correspond to the second bit; The second bit sequence is determined based on the first bit sequence and the first mapping relationship; The second information associated with the second bit sequence is determined based on the second bit sequence.

37. The apparatus according to claim 36, characterized in that, The first bit is 1 and the second bit is 0; or, the first bit is 0 and the second bit is 1.

38. The apparatus according to any one of claims 34-37, characterized in that, The first mapping relationship is determined by at least one of the following methods: Determined based on predefined protocols; or, The transceiver unit is also configured to receive third information, which is used to indicate the first mapping relationship.

39. The apparatus according to any one of claims 27-38, characterized in that, The device further includes: A processing unit is configured to acquire signal measurement results of at least one fourth signal, wherein different fourth signals correspond to different PAPRs; The processing unit is further configured to determine the first information based on the measurement result of the at least one fourth signal.

40. A communication device, characterized in that, The device includes: A transceiver unit is configured to receive first information, wherein the first information is used to indicate a first peak-to-average power ratio (PAPR); Processing unit, configured to determine a second signal based on the first PAPR, wherein the energy of the second signal is greater than or equal to a first threshold; The transceiver unit is also configured to transmit the second signal within M time units out of N time units, wherein N and / or M are determined according to the first PAPR.

41. The apparatus according to claim 40, characterized in that, The processing unit is also used for: A first ratio between N and M is determined based on the first PAPR.

42. The apparatus according to claim 41, characterized in that, The value of N and / or the value of M are related to the spectral efficiency.

43. The apparatus according to claim 42, characterized in that, The processing unit is further configured to: determine the value of N and / or the value of M based on the spectral efficiency and the first ratio.

44. The apparatus according to any one of claims 40-43, characterized in that, The processing unit is also used for: The energy of the second signal is determined based on the first PAPR and the pre-configured first average power.

45. The apparatus according to any one of claims 40-44, characterized in that, The first threshold is related to the energy of the third signal.

46. ​​The apparatus according to any one of claims 40-45, characterized in that, The first position is the position of the M time units in the N time units, or the first position is the position of the NM time units in the N time units; the first position is related to the second information, wherein the second information is the communication information between the terminal and the network device.

47. The apparatus according to claim 46, characterized in that, The processing unit is also used for: The first position is determined based on the second information and the first mapping relationship, wherein the first mapping relationship is used to indicate the mapping relationship between different first positions and different pieces of the second information.

48. The apparatus according to claim 47, characterized in that, The first mapping relationship is a mapping relationship between a first bit sequence and a second bit sequence, wherein the first bit sequence is related to the first position and the second bit sequence is related to the second information.

49. The apparatus according to claim 48, characterized in that, The processing unit is also used for: The second bit sequence related to the second information is determined based on the second information; The first bit sequence is determined based on the second bit sequence and the first mapping relationship; The first position is determined based on the first bit sequence and the first bit and the second bit, wherein the M time units correspond to the first bit and the NM time units correspond to the second bit.

50. The apparatus according to claim 49, characterized in that, The first bit is 1 and the second bit is 0; or, the first bit is 0 and the second bit is 1.

51. The apparatus according to any one of claims 47-50, characterized in that, The first mapping relationship is determined by at least one of the following methods: Determined based on predefined protocols; or, The transceiver unit is also configured to receive third information, which is used to indicate the first mapping relationship.

52. The apparatus according to any one of claims 40-51, characterized in that, The transceiver unit is also used for: Send at least one fourth signal, wherein different fourth signals correspond to different PAPRs.

53. A communication device, characterized in that, The device includes: A transceiver for transmitting first information, wherein the first information is used to indicate a first peak-to-average power ratio (PAPR); The transceiver is further configured to receive a first signal, wherein the first signal comprises N time units, a second signal exists within M time units of the N time units, a third signal exists within NM time units of the N time units, the energy of the second signal is greater than or equal to a first threshold, the energy of the third signal is less than or equal to a second threshold, and N and / or M are determined according to the first PAPR.

54. The apparatus according to claim 53, characterized in that, The N and / or M are determined according to the first PAPR, including: a first ratio between the N and the M is determined according to the first PAPR.

55. The apparatus according to claim 54, characterized in that, The value of N and / or the value of M are related to the spectral efficiency.

56. The apparatus according to claim 55, characterized in that, The value of N and / or the value of M are determined based on the spectral efficiency and the first ratio.

57. The apparatus according to any one of claims 53-56, characterized in that, The energy of the second signal is related to the first PAPR and the first average power.

58. The apparatus according to any one of claims 53-57, characterized in that, The first threshold is related to the energy of the third signal.

59. The apparatus according to any one of claims 53-58, characterized in that, The first position is the position of the M time units in the N time units, or the first position is the position of the NM time units in the N time units; the first position is related to the second information, wherein the second information is the communication information between the terminal and the network device.

60. The apparatus according to claim 59, characterized in that, The device further includes: A processor is configured to determine the second information based on the first position and a first mapping relationship, wherein the first mapping relationship is used to indicate the mapping relationship between different first positions and different pieces of the second information.

61. The apparatus according to claim 60, characterized in that, The first mapping relationship is a mapping relationship between a first bit sequence and a second bit sequence, wherein the first bit sequence is related to the first position and the second bit sequence is related to the second information.

62. The apparatus according to claim 61, characterized in that, The processor is also used for: The first bit sequence is determined based on the first bit, the second bit, and the first position, wherein the M time units correspond to the first bit, and the NM time units correspond to the second bit; The second bit sequence is determined based on the first bit sequence and the first mapping relationship; The second information associated with the second bit sequence is determined based on the second bit sequence.

63. The apparatus according to claim 62, characterized in that, The first bit is 1 and the second bit is 0; or, the first bit is 0 and the second bit is 1.

64. The apparatus according to any one of claims 60-63, characterized in that, The first mapping relationship is determined by at least one of the following methods: Determined based on predefined protocols; or, The transceiver is also used to receive third information, which indicates the first mapping relationship.

65. The apparatus according to any one of claims 53-64, characterized in that, The device further includes: A processor is configured to acquire signal measurement results of at least one fourth signal, wherein different fourth signals correspond to different PAPRs; The processor is further configured to determine the first information based on the measurement results of the at least one fourth signal.

66. A communication device, characterized in that, The device includes: A transceiver for receiving first information, wherein the first information is used to indicate a first peak-to-average power ratio (PAPR); A processor is configured to determine a second signal based on the first PAPR, wherein the energy of the second signal is greater than or equal to a first threshold. The transceiver is also configured to transmit the second signal within M time units out of N time units, wherein N and / or M are determined according to the first PAPR.

67. The apparatus according to claim 66, characterized in that, The processor is also used for: A first ratio between N and M is determined based on the first PAPR.

68. The apparatus according to claim 67, characterized in that, The value of N and / or the value of M are related to the spectral efficiency.

69. The apparatus according to claim 68, characterized in that, The processor is further configured to: determine the value of N and / or the value of M based on the spectral efficiency and the first ratio.

70. The apparatus according to any one of claims 66-69, characterized in that, The processor is also used for: The energy of the second signal is determined based on the first PAPR and the pre-configured first average power.

71. The apparatus according to any one of claims 66-70, characterized in that, The first threshold is related to the energy of the third signal.

72. The apparatus according to any one of claims 66-71, characterized in that, The first position is the position of the M time units in the N time units, or the first position is the position of the NM time units in the N time units; the first position is related to the second information, wherein the second information is the communication information between the terminal and the network device.

73. The apparatus according to claim 72, characterized in that, The processor is also used for: The first position is determined based on the second information and the first mapping relationship, wherein the first mapping relationship is used to indicate the mapping relationship between different first positions and different pieces of the second information.

74. The apparatus according to claim 73, characterized in that, The first mapping relationship is a mapping relationship between a first bit sequence and a second bit sequence, wherein the first bit sequence is related to the first position and the second bit sequence is related to the second information.

75. The apparatus according to claim 74, characterized in that, The processor is also used for: The second bit sequence related to the second information is determined based on the second information; The first bit sequence is determined based on the second bit sequence and the first mapping relationship; The first position is determined based on the first bit sequence and the first bit and the second bit, wherein the M time units correspond to the first bit and the NM time units correspond to the second bit.

76. The apparatus according to claim 75, characterized in that, The first bit is 1 and the second bit is 0; or, the first bit is 0 and the second bit is 1.

77. The apparatus according to any one of claims 73-76, characterized in that, The first mapping relationship is determined by at least one of the following methods: Determined based on predefined protocols; or, The transceiver is also used to receive third information, which indicates the first mapping relationship.

78. The apparatus according to any one of claims 66-77, characterized in that, The transceiver is also used for: Send at least one fourth signal, wherein different fourth signals correspond to different PAPRs.

79. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed by a communication device, implement the method as described in any one of claims 1-26.

80. A computer program product comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed by the communication device, they implement the method as described in any one of claims 1-26.

Images