Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus, which can mitigate the problem of signal nonlinear distortion, thereby improving the signal coverage and signal-to-noise ratio, and can be applied to communication systems. The method comprises: a first device acquires a first signal, wherein the first signal is generated at least on the basis of a second signal and a first model, and the first signal at least satisfies one of the following conditions: being used for reducing a peak-to-average power ratio, or the peak-to-average power ratio of the first signal and the second signal being less than the peak-to-average power ratio of the second signal; and the first device sends the first signal and the second signal.

Description

Communication method and communication apparatus

[0001] The present application claims priority from the Chinese patent application No. 202411053922.9 filed on August 01, 2024, and entitled "Communication method and communication apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of communication, and in particular to a communication method and a communication apparatus. BACKGROUND

[0003] Before a signal is transmitted, the signal will be amplified by a power amplifier. Since the power amplifier is nonlinear in a large power range, the signal will be distorted after amplification. In order to improve the distortion problem of the signal, the transmitting end of the signal will perform power backoff on the signal before transmitting the signal, that is, reduce the transmit power of the signal. In this way, the average power of the transmitted signal will be smaller, and thus the coverage range of the signal will be reduced and the signal-to-noise ratio of the signal will be reduced.

[0004] As can be seen from the above scheme, the coverage range of the signal is limited, and the signal-to-noise ratio is low. SUMMARY

[0005] Embodiments of the present application provide a communication method and a communication apparatus, which can improve the problem of signal nonlinear distortion, thereby reducing the backoff power when transmitting the signal, and improving the coverage range and signal-to-noise ratio of the signal.

[0006] To achieve the above object, the present application adopts the following technical scheme:

[0007] In a first aspect, a communication method is provided. The method is applied to a first device, for example, the method can be executed by the first device, or implemented by a component (such as a circuit, a processor, a chip or a chip system) in the first device, or it can also be a logic module or software that can realize all or part of the functions of the first device. The following is described by taking the first device as an example. The communication method comprises: a first device acquires a first signal; the first signal is generated at least according to a second signal and a first model, and the first signal at least satisfies one of the following conditions: used to reduce the peak-to-average power ratio, or the peak-to-average power ratio of the first signal and the second signal is less than the peak-to-average power ratio of the second signal; the first device transmits the first signal and the second signal.

[0008] Based on the communication method provided in the first aspect, the first device can obtain the first signal through the first model, and transmit the first signal and the second signal to reduce the peak-to-average power ratio of the transmitted second signal. Since the greater the peak-to-average power ratio of the transmitted signal is, the greater the backoff power is, reducing the peak-to-average power ratio can reduce the backoff power when the first device transmits the second signal, improve the distortion condition of the second signal, and thus improve the coverage range and signal-to-noise ratio of the second signal.

[0009] In a possible implementation, the power of the first signal can be less than or equal to the first power threshold. In this way, the power of the first signal can be prevented from being too large, the impact of the transmission power of the second signal can be reduced, and thus the impact on the reception performance of the second signal can be reduced. And / or, the number of frequency domain units occupied by the first signal can be less than or equal to the number of frequency domain units occupied by the first frequency domain resource set, and the first frequency domain resource set is used to carry the first signal. In this way, the first signal can be prevented from interfering with signals on other frequency domain resources.

[0010] In a possible implementation, the method provided in the first aspect can further include that the first device receives first information, and the first information is used to indicate the first power threshold. In this way, the first device can transmit the first signal according to the first power threshold, and the energy of the first signal can be prevented from being too large and the energy of the second signal can be prevented from being too low, thereby improving the communication quality. And / or, the first device receives second information, and the second information is used to indicate the number of frequency domain units occupied by the first frequency domain resource set. In this way, the first device can transmit the first signal according to the number of frequency domain units occupied by the first frequency domain resource set, and the first signal can be prevented from occupying too many frequency domain resources, thereby improving the spectrum efficiency.

[0011] In a possible implementation, the first signal is carried on the first frequency domain resource set, the second signal is carried on the second frequency domain resource set, and the resources of the first frequency domain resource set are orthogonal to the resources of the second frequency domain resource set. In this way, the first signal can be prevented from interfering with the second signal.

[0012] In a possible implementation, the method provided in the first aspect can further include that the first device obtains first configuration information, the first configuration information is used to transmit the first signal and the second signal, and the first configuration information is used to indicate one or more of the following information: the second frequency domain resource set, the modulation mode of the second signal, the waveform of the second signal, the number of frequency domain units occupied by the first frequency domain resource set, or the positional relationship between the first frequency domain resource set and the second frequency domain resource set. In this way, the first device can generate the first signal according to the first configuration information, and transmit the first signal and the second signal, thereby achieving the effect of reducing the peak-to-average power ratio PAPR.

[0013] In a possible implementation, the number of frequency domain units occupied by the first set of frequency domain resources is positively correlated with the number of frequency domain units occupied by the second set of frequency domain resources. In this way, the first signal can be prevented from occupying too many resources, and the spectrum efficiency and the peak-to-average power ratio can be taken into account. Alternatively, the number of frequency domain units occupied by the first set of frequency domain resources is correlated with at least one of the following: the multipath between the first device and the second device, the hardware transmission capability of the first device, and the distance between the first device and the second device. In this way, the coverage requirement and the spectrum efficiency can be taken into account.

[0014] In a possible implementation, the positional relationship between the first set of frequency domain resources and the second set of frequency domain resources can include: the frequency points of the frequency domain units occupied by the first set of frequency domain resources are less than the frequency points of the frequency domain units occupied by the second set of frequency domain resources; or the frequency points of the frequency domain units occupied by the first set of frequency domain resources are greater than the frequency points of the frequency domain units occupied by the second set of frequency domain resources; or the frequency point of the frequency domain unit occupied by the first frequency domain resource in the first set of frequency domain resources is less than the frequency point of the frequency domain unit occupied by the second set of frequency domain resources, and the frequency point of the frequency domain unit occupied by the second frequency domain resource in the first set of frequency domain resources is greater than the frequency point of the frequency domain unit occupied by the second set of frequency domain resources; wherein the second frequency domain resource is a frequency domain resource in the first set of frequency domain resources other than the first frequency domain resource. Alternatively, the resources in the second set of frequency domain resources and the resources in the first set of frequency domain resources are comb-shapedly distributed.

[0015] In a possible implementation, the first device obtaining the first configuration information can include: the first device receiving third information; wherein the third information is used to indicate the first configuration information. In this way, the first device can obtain the first configuration information from another device, such as the second device, and the calculation complexity of the first device can be reduced.

[0016] In a possible implementation, the method provided by the first aspect can further include: the first device sending fourth information; the fourth information is used to determine the first model and the first configuration information, and the fourth information indicates one or more of the following: the capability of the first device, the reference signal received power (RSRP) of the first device, the reference signal received quality (RSRQ) of the first device, the signal-to-interference-and-noise ratio (SINR) of the first device, or the channel quality information (CQI) of the first device.

[0017] In this way, the first model and the first configuration information can be determined according to the fourth information, so that the first model and the first configuration information can be matched with the capability of the first device or the channel environment in which the first device is located, thereby improving the communication quality.

[0018] In a possible implementation, the first model is generated according to at least one first-type configuration information, the first model corresponds to the at least one first-type configuration information, and the at least one first-type configuration information includes the first configuration information. In this way, the first model can be applicable to more scenarios.

[0019] In a possible implementation, the method provided by the first aspect can further include: receiving, by the first device, fifth information; and the fifth information is used to indicate a first configuration information set, and the first configuration information set includes at least one first type of configuration information. That is, the first configuration information set can be indicated by the second device. In this way, the first configuration information set can be configured according to different scenarios, thereby improving flexibility. And / or, the first device sends sixth information, and the sixth information is used to indicate the first configuration information. In this way, the first configuration information can be indicated to other devices, such as the second device, when the first device determines the first model and the first configuration information, so that the other devices can receive the first signal and the second signal according to the first configuration information, thereby improving communication efficiency.

[0020] In a possible implementation, the method provided by the first aspect can further include: receiving, by the first device, seventh information; and the seventh information is used to indicate the first model. In this way, the first device can obtain the first model from other devices, such as the second device, and can avoid training the first model by itself, thereby reducing the computational complexity of the first device.

[0021] In a possible implementation, the average power of the first signal is less than or equal to a second power threshold, or the first signal produces interference on a third signal on a first frequency domain resource set less than or equal to an interference threshold, and the first frequency domain resource is a frequency domain resource carrying the first signal. In this way, the first signal can reduce interference on other signals on the frequency domain resource occupied by the first signal.

[0022] In a possible implementation, before obtaining the first signal, the method provided by the first aspect can further include: receiving, by the first device, eighth information; and the eighth information is used to indicate: enabling a function of sending a signal for reducing a peak-to-average power ratio; and / or, the method provided by the first aspect can further include: receiving, by the first device, ninth information; and the ninth information is used to indicate: disabling the function of sending the signal for reducing the peak-to-average power ratio. In this way, the function of sending the signal for reducing the peak-to-average power ratio can be enabled or disabled according to actual conditions.

[0023] As an example, enabling can be replaced by enabling, disabling, activating, allowing to use, and the like. Disabling can be replaced by disabling, deactivating, deactivating, not allowing to use, and the like.

[0024] In a second aspect, a communication method is provided. The method can be applied to a second device, for example, the method can be executed by the second device, or implemented by a component (for example, a circuit, a processor, a chip, or a chip system) in the second device, or can also be a logic module or software capable of realizing all or part of the functions of the second device. The following is described by taking the second device as an example. The communication method comprises: the second device sends seventh information or fifth information; the seventh information is used to indicate a first model, and the fifth information is used to indicate a first configuration information set, at least one first type of configuration information in the first configuration information set being used to generate the first model; and the second device receives a first signal and a second signal, the first signal being generated at least according to the second signal and the first model, and the first signal at least satisfying one of the following conditions: being used to reduce a peak-to-average power ratio, or a peak-to-average power ratio of the first signal and the second signal being less than a peak-to-average power ratio of the second signal.

[0025] Based on the communication method provided in the second aspect, the second device can indicate the first model to the first device, or can generate the first configuration information set of the first model, so that the first device can obtain the first signal through the first model, and send the first signal and the second signal to reduce the peak-to-average power ratio of the second signal. Since the greater the peak-to-average power ratio of the signal to be sent is, the greater the backoff power is, therefore, reducing the peak-to-average power ratio can reduce the backoff power when the first device sends the second signal, improve the distortion condition of the second signal, and thus improve the coverage range and the signal-to-noise ratio of the second signal.

[0026] In a possible implementation, the power of the first signal can be less than or equal to a first power threshold; and / or, the number of frequency domain units occupied by the first signal can be less than or equal to the number of frequency domain units occupied by a first frequency domain resource set, the first frequency domain resource set being used to carry the first signal.

[0027] In a possible implementation, the method provided in the second aspect can further comprise: the second device sends first information, the first information being used to indicate the first power threshold; and / or, the first device receives second information; and the second information can be used to indicate the number of frequency domain units occupied by the first signal.

[0028] In a possible implementation, the first signal is carried on a first frequency domain resource set, and the second signal is carried on a second frequency domain resource set, resources of the first frequency domain resource set being orthogonal to resources of the second frequency domain resource set.

[0029] In a possible implementation, the method provided by the second aspect can further include: the second device sending third information; and the third information is used to indicate the first configuration information; the first configuration information is used to send the first signal and the second signal, and the first configuration information is used to indicate one or more of the following: the second frequency domain resource set, a modulation mode of the second signal, a waveform of the second signal, a quantity of frequency domain units occupied by the first frequency domain resource set, or a location relationship between the first frequency domain resource set and the second frequency domain resource set.

[0030] In a possible implementation, the quantity of frequency domain units occupied by the first frequency domain resource set is positively correlated with the quantity of frequency domain units occupied by the second frequency domain resource set; or the quantity of frequency domain units occupied by the first frequency domain resource set is related to at least one of the following: a multipath between the first device and the second device, a hardware transmission capability of the first device, and a distance between the first device and the second device.

[0031] In a possible implementation, the location relationship between the first frequency domain resource set and the second frequency domain resource set can include: a frequency point of a frequency domain unit occupied by the first frequency domain resource set is less than a frequency point of a frequency domain unit occupied by the second frequency domain resource set; or a frequency point of a frequency domain unit occupied by the first frequency domain resource set is greater than a frequency point of a frequency domain unit occupied by the second frequency domain resource set; or a frequency point of a frequency domain unit occupied by a first frequency domain resource in the first frequency domain resource set is less than a frequency point of a frequency domain unit occupied by the second frequency domain resource set, and a frequency point of a frequency domain unit occupied by a second frequency domain resource in the first frequency domain resource set is greater than a frequency point of a frequency domain unit occupied by the second frequency domain resource set; or the second frequency domain resource is a frequency domain resource in the first frequency domain resource set other than the first frequency domain resource; or resources in the second frequency domain resource set and resources in the first frequency domain resource set are in a comb shape.

[0032] In a possible implementation, the method provided by the second aspect can further include: the second device receiving fourth information; and the fourth information is used to determine the first model and the first configuration information, and the fourth information can include one or more of the following: a capability of the first device, a reference signal receiving power (RSRP) of the first device, a reference signal receiving quality (RSRQ) of the first device, a signal-to-interference-and-noise ratio (SINR) of the first device, or channel quality information (CQI) of the first device.

[0033] In a possible implementation, the at least one first-type configuration information includes the first configuration information, and the first configuration information is used to send the first signal and the second signal.

[0034] In a possible implementation, the method provided by the second aspect can further include: the second device sending sixth information, and the sixth information is used to indicate the first configuration information.

[0035] In a possible implementation, the average power of the first signal is less than or equal to a second power threshold, or the interference caused by the first signal to a third signal on the first set of frequency domain resources is less than or equal to an interference threshold, and the first frequency domain resource is a frequency domain resource carrying the first signal.

[0036] In a possible implementation, before obtaining the first signal, the method provided in the second aspect further includes that the second device sends eighth information. The eighth information is used to indicate that the function of sending the signal with the reduced peak-to-average power ratio is enabled, and / or the method provided in the second aspect further includes that the second device sends ninth information. The ninth information is used to indicate that the function of sending the signal with the reduced peak-to-average power ratio is disabled.

[0037] As an example, enabling can be replaced by enabling, disabling, activating, allowing to use, and the like. Disabling can be replaced by disabling, deactivating, not allowing to use, and the like.

[0038] In addition, the technical effects of the communication method of the second aspect can refer to the technical effects of the communication method of the first aspect, which will not be described herein again.

[0039] In a third aspect, a communication method is provided, which is applied to a first device. For example, the method can be executed by the first device, or implemented by a component (for example, a circuit, a processor, a chip, or a chip system) in the first device, or can be a logic module or software that can realize all or part of the functions of the first device. The following is described by taking the first device as an example. The communication method includes that the first device obtains a signal #1. The signal #1 at least meets one of the following conditions: used for reducing a peak-to-average power ratio, or a peak-to-average power ratio of the signal #1 and a signal #2 is lower than a peak-to-average power ratio of the signal #2. The first device sends the signal #1 and the signal #2. The signal #1 and the signal #2 are both carried on a same frequency domain resource.

[0040] Based on the communication method provided in the third aspect, the first device can obtain the signal #1 through the model #1, and send the signal #1 and the signal #2, so that the signal #1 and the signal #2 can be superimposed on each other, to reduce the peak-to-average power ratio of the signal #2. Since the greater the peak-to-average power ratio of the transmitted signal is, the greater the backoff power is, therefore, reducing the peak-to-average power ratio can reduce the backoff power when the first device transmits the signal #2, improve the distortion of the signal #2, and thus improve the coverage range and the signal-to-noise ratio of the signal #2.

[0041] In a possible implementation, the signal #1 is at least generated according to the signal #2 and the model #1. In this way, generating the signal #1 through the model can better meet the coverage requirement of the first device, and can reduce the computational complexity of the first device.

[0042] In a possible implementation, the vector amplitude error of the signal #1 and the signal #2 can be less than or equal to the first error threshold, and the first error threshold is greater than or equal to the second error threshold.

[0043] For example, the second error threshold can be an upper limit value of the EVM specified in the technical standards of the Third Generation Partnership Project.

[0044] In a possible implementation, the method provided by the third aspect can further include that the first device receives information #1, and the information #1 is used to indicate the first error threshold. In this way, the first device can obtain the first error threshold from another device, such as the second device, and the calculation complexity of the first device can be reduced.

[0045] It can be understood that the information #1 used to indicate the first error threshold can mean that the information #1 includes the first error threshold, or the information #1 is used to indicate that the current error threshold is increased or decreased, and the first error threshold is the error threshold after the current error threshold is increased or decreased, or the information #1 is used to indicate the signal quality on the channel used to receive the signal #2, and there is a corresponding relationship between the signal quality on the channel used to receive the signal #2 and the first error threshold.

[0046] In a possible implementation, the method provided by the third aspect can further include that the first device obtains configuration information #1. The configuration information #1 is used to send the signal #1 and the signal #2, and the configuration information #1 is used to indicate one or more of the following: a modulation mode of the signal, or a waveform of the signal. In this way, the first device can generate the signal #1 according to the configuration information #1, and send the signal #1 and the signal #2, so as to reduce the peak-to-average power ratio (PAPR).

[0047] In a possible implementation, the method provided by the third aspect can further include that the first device receives information #2, and the information #2 is used to indicate the configuration information #1. In this way, the first device can obtain the configuration information #1 from another device, such as the second device, and the calculation complexity of the first device can be reduced.

[0048] In a possible implementation, the method provided by the third aspect can further include that the first device sends information #3, and the information #3 is used to determine the model #1 and the configuration information #1. The information #3 includes one or more of the following: a capability of the first device, a reference signal received power (RSRP) of the first device, a reference signal received quality (RSRQ) of the first device, a signal-to-interference-and-noise ratio (SINR) of the first device, or a channel quality information (CQI) of the first device. In this way, the model #1 and the configuration information #1 can be determined according to the information #3, so that the model #1 and the configuration information #1 can be matched with the capability of the first device or the channel environment in which the first device is located, and the communication quality can be improved.

[0049] In a possible implementation, the model #1 is generated according to at least one second type of configuration information, the model #1 corresponds to the at least one second type of configuration information, and the at least one second type of configuration information includes the configuration information #1.

[0050] In a possible implementation, the method provided by the third aspect further includes that the first device receives information #4. The information #4 is used to indicate a configuration information set #1, and the configuration information set #1 includes at least one second type of configuration information. That is, the configuration information set #1 can be indicated by the second device. In this way, the configuration information set #1 can be configured according to different scenarios, thereby improving flexibility. And / or, the first device sends information #5, and the information #5 is used to indicate the configuration information #1. In this way, the first device can indicate the configuration information #1 to other devices, such as the second device, in a case where the model #1 and the configuration information #1 are determined, so that the other devices can receive the signal #1 and the signal #2 according to the configuration information #1, thereby improving communication efficiency.

[0051] In a possible implementation, the method provided by the third aspect further includes that the first device receives information #6, and the information #6 is used to indicate the model #1. In this way, the first device can obtain the model #1 from other devices, such as the second device, and can avoid training the model #1 by itself, thereby reducing the computational complexity of the first device.

[0052] In a possible implementation, before the first device obtains the signal #1, the method provided by the third aspect further includes that the first device receives information #7, and the information #7 is used to indicate that a function of sending a signal with a reduced peak-to-average power ratio is enabled. And / or, the method provided by the third aspect further includes that the first device receives information #8, and the information #8 is used to indicate that the function of sending the signal with the reduced peak-to-average power ratio is disabled. In this way, the function of sending the signal with the reduced peak-to-average power ratio can be enabled or disabled according to the capability or coverage of the terminal device.

[0053] As an example, enablement can be replaced by enabling, dis-enabling, activation, permission to use, and the like. Disabling can be replaced by disabling, deactivation, de-activation, and the like.

[0054] In a fourth aspect, a communication method is provided. The method can be applied to a second device, for example, the method can be performed by the second device, or implemented by a component (e.g., a circuit, a processor, a chip, or a chip system) in the second device, or can be a logic module or software that can realize all or part of the functions of the second device. The following is described by taking the second device as an example. The communication method includes: the second device sending information #6 or information #4; the information #6 is used to indicate a model #1, and the information #4 is used to indicate a configuration information set #1, at least one second type of configuration information in the configuration information set #1 being used to generate the model #1; the second device receiving a signal #1 and a signal #2, the signal #1 being generated according to the signal #2 and the model #1, wherein the signal #1 at least meets one of the following conditions: being used to reduce a peak-to-average power ratio, or a peak-to-average power ratio of the signal #1 and the signal #2 being lower than a peak-to-average power ratio of the signal #2; and wherein the signal #1 and the signal #2 are both carried on a same frequency domain resource.

[0055] Based on the communication method provided in the fourth aspect, the second device can indicate the model #1 or the configuration information set #1 that can be used to generate the model #1 to the first device, so that the first device can obtain the signal #1 through the model #1, and send the signal #1 and the signal #2 on the same frequency domain resource. In this way, the signal #1 and the signal #2 can be superimposed on each other to reduce the peak-to-average power ratio of the signal #2. Since the greater the peak-to-average power ratio of the transmitted signal is, the greater the backoff power is, reducing the peak-to-average power ratio can reduce the backoff power when the first device transmits the signal #2, improve the distortion of the signal #2, and thus improve the coverage range and the signal-to-noise ratio of the signal #2.

[0056] In a possible implementation, the signal #1 is at least generated according to the signal #2 and the model #1.

[0057] In a possible implementation, a vector amplitude error of the signal #1 and the signal #2 can be less than or equal to a first error threshold, the first error threshold being greater than or equal to a second error threshold.

[0058] In a possible implementation, the method provided in the fourth aspect can further include: the second device sending information #1, the information #1 being used to indicate the first error threshold.

[0059] In a possible implementation, the information #1 being used to indicate the first error threshold can mean that the information #1 includes the first error threshold. Alternatively, the information #1 being used to indicate an increase or a decrease of a current error threshold, the first error threshold being an error threshold after the current error threshold is increased or decreased. Alternatively, the information #1 being used to indicate a signal quality on a channel used to receive the signal #2, wherein a corresponding relationship between the signal quality on the channel used to receive the signal #2 and the first error threshold.

[0060] In a possible implementation, the method provided by the fourth aspect further includes: the second device sending information #2; and the information #2 is used to indicate the configuration information #1, and the configuration information #1 is used to send the signal #1 and the signal #2, and the configuration information #1 is used to indicate one or more of the following: a modulation mode of the signal, or a waveform of the signal.

[0061] In a possible implementation, the method provided by the fourth aspect further includes: the second device receiving information #3; the information #3 is used to determine the first model and the configuration information #1; and the information #3 includes one or more of the following: a capability of the first device, a reference signal receiving power (RSRP) of the first device, a reference signal receiving quality (RSRQ) of the first device, a signal-to-interference-and-noise ratio (SINR) of the first device, or channel quality information (CQI) of the first device.

[0062] In a possible implementation, the model #1 is generated according to at least one second type of configuration information, the model #1 corresponds to the at least one second type of configuration information, and the at least one second type of configuration information includes the configuration information #1.

[0063] In a possible implementation, the method provided by the fourth aspect further includes: the second device receiving information #5, and the information #5 is used to indicate the configuration information #1; and the configuration information #1 is used to send the signal #1 and the signal #2.

[0064] In a possible implementation, the method provided by the fourth aspect further includes: the second device sending information #7; and the information #7 is used to indicate that a function of sending a signal with a reduced peak-to-average power ratio is enabled; and / or the method provided by the fourth aspect further includes: the second device sending information #8; and the information #8 is used to indicate that the function of sending the signal with the reduced peak-to-average power ratio is disabled.

[0065] As an example, enabling can be replaced by enabling, disabling, activating, allowing to use, and the like. Disabling can be replaced by disabling, deactivating, not allowing to use, and the like.

[0066] In addition, the technical effects of the communication method of the fourth aspect can refer to the technical effects of the communication method of the third aspect, which will not be described herein.

[0067] In a fifth aspect, a communication apparatus is provided. The communication apparatus is configured to perform the communication method in any of the implementations of the first aspect to the fourth aspect.

[0068] In this application, the communication apparatus of the fifth aspect can be a terminal device or an access network device, or a chip (system) or other components or assemblies, or an apparatus containing a terminal device or an access network device. The chip (system) or other components or assemblies can be arranged in the terminal device or the access network device.

[0069] It should be understood that the communication apparatus described in the fifth aspect includes modules, units, or means that implement the communication methods described in any of the first to fourth aspects. These modules, units, or means can be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units for performing the functions involved in the aforementioned communication methods.

[0070] A sixth aspect provides a communication device. The communication device includes a processor configured to execute the communication method described in any of the possible implementations of the first to fourth aspects.

[0071] In one possible implementation, the communication device described in the sixth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the sixth aspect and other communication devices.

[0072] In one possible implementation, the communication device described in the sixth aspect may further include a memory. This memory may be integrated with the processor or disposed separately. The memory may be used to store computer programs and / or data relating to the communication method described in any of the first to fourth aspects.

[0073] In this application, the communication device described in the sixth aspect can be a terminal device or an access network device, or a chip (system) or other component or assembly, or a device containing a terminal device or access network device. The aforementioned chip (system) or other component or assembly can all be disposed within the terminal device or access network device.

[0074] A seventh aspect provides a communication device, comprising: a processor and a memory; the memory being used to store a computer program, which, when executed by the processor, causes the communication device to perform the communication method described in any one of the first to fourth aspects.

[0075] In one possible implementation, the communication device described in the seventh aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the seventh aspect and other communication devices.

[0076] In this application, the communication device described in the seventh aspect can be a terminal device or an access network device, or a chip (system) or other component or assembly, or a device containing a terminal device or access network device. The aforementioned chip (system) or other component or assembly can all be disposed within the terminal device or access network device.

[0077] Eighthly, a communication device is provided, comprising: a processor; the processor being configured to be coupled to a memory, and after reading a computer program from the memory, to execute a communication method as described in any one of the first to fourth aspects according to the computer program.

[0078] In one possible implementation, the communication device described in the eighth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the eighth aspect and other communication devices.

[0079] In this application, the communication device described in the eighth aspect can be a terminal device or an access network device, or a chip (system) or other component or assembly, or a device containing a terminal device or access network device. The aforementioned chip (system) or other component or assembly can all be disposed within the terminal device or access network device.

[0080] In one possible implementation, the communication device is a chip or a chip system. Optionally, in some possible designs, when the device is a chip system, it can be composed of chips or may include chips and other discrete components.

[0081] It is understandable that when the communication device provided in any of the fifth to eighth aspects is a chip, the sending action / function of the communication device can be understood as outputting information, and the receiving action / function of the communication device can be understood as inputting information.

[0082] A ninth aspect provides a communication system. The communication system includes a first device (or means included in the first device, such as a chip or chip system) according to the first aspect and a second device (or means included in the second device, such as a chip or chip system) according to the second aspect. Alternatively, the communication system includes a first device (or means included in the first device, such as a chip or chip system) according to the third aspect and a second device (or means included in the second device, such as a chip or chip system) according to the fourth aspect.

[0083] A tenth aspect provides a computer-readable storage medium comprising: a computer program or instructions; which, when executed on a computer, causes the computer to perform the communication method described in any one of the possible implementations of the first to fourth aspects.

[0084] Eleventhly, a computer program product is provided, comprising a computer program or instructions that, when executed on a computer, cause the computer to perform the communication method described in any one of the possible implementations of the first to fourth aspects.

[0085] Furthermore, the technical effects of the fifth to eleventh aspects mentioned above can be referred to with reference to the technical effects of the communication methods described in the first to fourth aspects, and will not be repeated here. Attached Figure Description

[0086] Figure 1 is a schematic diagram of the architecture of the communication system provided in an embodiment of this application;

[0087] Figure 2 is a schematic diagram of the connection relationship between the core network equipment, access network equipment and terminal equipment provided in the embodiments of this application;

[0088] Figure 3 is a schematic diagram of the functional division of RAN network elements and protocol layer structure in the open radio access network (O-RAN or ORAN) system provided in the embodiments of this application;

[0089] Figure 4 is a schematic diagram of the architecture for communication between access network equipment and terminal equipment provided in an embodiment of this application;

[0090] Figure 5 is a schematic diagram of the distribution of AI nodes provided in the embodiments of this application;

[0091] Figure 6 is a schematic diagram of the neural network structure provided in an embodiment of this application;

[0092] Figure 7 is a schematic diagram of the signal transmission process provided in an embodiment of this application;

[0093] Figure 8 is a schematic diagram of linear distortion of the signal provided in the embodiment of this application;

[0094] Figure 9 is a schematic diagram of the PAPR distribution probability provided in the embodiments of this application;

[0095] Figure 10 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0096] Figure 11 is a schematic diagram showing the location of the first frequency domain resource set provided in an embodiment of this application;

[0097] Figure 12 is a schematic diagram showing the positional relationship between the first frequency domain resource set and the second frequency domain resource set provided in the embodiments of this application;

[0098] Figure 13 is a schematic diagram showing the relationship between the power of the signals provided in the embodiments of this application;

[0099] Figure 14 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0100] Figure 15 is a schematic diagram of the constellation points of the signal provided in the embodiment of this application;

[0101] Figure 16 is a schematic diagram showing the positional relationship between the power of the signals provided in the embodiments of this application;

[0102] Figure 17 is a schematic diagram of the communication device provided in an embodiment of this application;

[0103] Figure 18 is a second schematic diagram of the structure of the communication device provided in the embodiment of this application. Detailed Implementation

[0104] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0105] The technical solutions of this application embodiment can be applied to various communication systems, such as wireless fidelity (WiFi) systems, vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, vehicle-to-everything (V2X) communication systems, 4th generation (4G) mobile communication systems, such as long term evolution (LTE) systems, worldwide interoperability for microwave access (WiMAX) communication systems, 5th generation (5G) mobile communication systems, such as new radio (NR) systems, and future communication systems, etc.

[0106] This application will present various aspects, embodiments, or features relating to systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0107] In the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between the related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural.

[0108] In the description of this application, unless otherwise stated, "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0109] Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0110] It is understood that in the embodiments of this application, words such as "exemplarily" and "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or implementation described as "exemplary" in this application should not be construed as being more preferred or advantageous than other embodiments or implementations. Specifically, the use of the word "exemplary" is intended to present the concept in a concrete manner.

[0111] It is understandable that the terms "information," "signal," "message," "channel," and "signaling" can sometimes be used interchangeably. It should be noted that when the distinction is not emphasized, their intended meanings are consistent. Similarly, "of," "corresponding (relevant)," and "corresponding" can sometimes be used interchangeably. Again, it should be noted that when the distinction is not emphasized, their intended meanings are consistent.

[0112] 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 this application. Therefore, 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 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.

[0113] It is understood that the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0114] It is understood that in 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 specific time, nor do they require a judgment action to be performed during implementation, nor do they imply any other limitations.

[0115] 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.

[0116] It is understood that in this application, "instruction" can include direct and indirect instructions, as well as explicit and implicit instructions. When describing "a certain instruction information instructs A" or "instruction information of A," it can include whether the instruction information directly or indirectly instructs A, but does not necessarily mean that the instruction information carries A. The information indicated by a certain piece of information is called the information to be instructed. In the specific implementation process, there are many ways to instruct the information to be instructed, such as, but not limited to, directly instructing the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly instruct the information to be instructed by instructing other information, where there is a relationship between the other information and the information to be instructed. It can also instruct only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various information, thereby reducing instruction overhead to some extent. At the same time, the common parts of various information can be identified and uniformly indicated to reduce the instruction overhead caused by individually indicating the same information. Furthermore, the specific instruction method can also be any existing instruction method, such as, but not limited to, the above-mentioned instruction methods and their various combinations. As described above, for example, when multiple pieces of information of the same type need to be indicated, the indication methods for different pieces of information may differ. In specific implementation, the required indication method can be selected according to specific needs. This application embodiment does not limit the selected indication method; therefore, the indication methods involved in this application embodiment should be understood to cover various methods that enable the party to be indicated to obtain the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information pieces and sent separately. Furthermore, the sending period or timing of these sub-information pieces can be the same or different. This application does not limit the specific sending method. The sending period or timing of these sub-information pieces can be predefined, for example, predefined according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device.

[0117] In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which can include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which can include direct reception from YY via the air interface or indirect reception from YY via the air interface from other units or modules. "Send" can also be understood as the "output" of a chip interface, and "receive" can also be understood as the "input" of a chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, traces, or interfaces.

[0118] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. Unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments are consistent and can be mutually referenced. Different embodiments can be combined to form new embodiments 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 this application.

[0119] 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.

[0120] To facilitate understanding of the embodiments of this application, the communication system applicable to the embodiments of this application will be described in detail first using the communication system shown in FIG1 as an example. Exemplarily, FIG1 is a schematic diagram of the architecture of a communication system to which the method provided in the embodiments of this application applies. As shown in FIG1, the communication system includes access network equipment and terminal equipment.

[0121] As shown in Figure 1, the communication system includes at least one access network device (such as access network device 110a and access network device 110b) and at least one terminal device (such as terminal devices 120a to 120j).

[0122] Terminal devices can connect to access network devices wirelessly, and access network devices can connect to the core network (not shown in Figure 1) via wired or wireless means.

[0123] Among them, access network equipment and terminal equipment can exchange information.

[0124] Terminal equipment can be a terminal with transceiver capabilities. This terminal equipment can also be referred to as user equipment (UE), access terminal, subscriber unit, user station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user apparatus. The terminal devices in the embodiments of this application may be mobile phones, cellular phones, smartphones, tablets, wireless data cards, personal digital assistants (PDAs), wireless modems, handsets, laptop computers, machine-type communication (MTC) terminals, computers with wireless transceiver capabilities, virtual reality (VR) terminals, augmented reality (AR) terminals, smart home devices (e.g., refrigerators, televisions, air conditioners, electricity meters, etc.), intelligent robots, robotic arms, workshop equipment, wireless terminals in autonomous driving, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, vehicle-mounted terminals, and roadside units with terminal functions. The terminal device in this application can also be an onboard module, onboard unit, onboard component, onboard chip, or onboard unit, which is built into a vehicle as one or more components or units. The terminal device can also be other devices with terminal functions; for example, it can be a device that performs terminal functions in D2D communication. The embodiments of this application do not limit the device form of the terminal device. The device used to implement the function of the terminal device can be the terminal device itself; it can also be a device that supports the terminal device in implementing the function, such as a communication module, chip, chip system, other components or parts, or circuits or functional components. This device can be installed in the terminal device or used in conjunction with the terminal device. The chip system can be composed of chips or include chips and other discrete devices.Among them, the various forms of terminal devices mentioned above can also be referred to as terminal-side devices.

[0125] In this application embodiment, the access network device can be a device with wireless transceiver capabilities. For example, the access network device can be a device located in the access network (AN) of a communication system, which can be used to provide access services for terminals. In one possible scenario, the access network device can be a radio access network (RAN) device, such as a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission and reception point (TRP), or a base station in a future communication system. In future mobile communication systems, the access network device may also have other naming conventions, all of which are covered within the protection scope of this application embodiment, and this application does not impose any limitations on them. Alternatively, the access network device may also include 5G, such as a gNB in ​​a new radio (NR) system, or one or a group of antenna panels (including multiple antenna panels) of a 5G base station, or it may be a network node constituting a gNB, a transmission and reception point (TRP or transmission point (TP)) or a transmission measurement function (TMF). Alternatively, the access network device can be a macro base station (as shown in Figure 1, 110a), a micro base station or indoor station (as shown in Figure 1, 110b), a relay node or donor node, or a wireless controller in a cloud radio access network (CRAN) scenario. Optionally, the access network device can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network device in V2X technology can be a roadside unit (RSU). All or part of the functions of the access network device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform). The access network device in this application can also be a logical node, logical module, or software capable of implementing all or part of the access network device functions.

[0126] In another possible scenario, multiple access network devices collaborate to assist terminal devices in achieving wireless access, with each access network device performing a portion of the base station's functions. For example, the access network devices can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and DU can be configured separately or included in the same network element, such as a baseband unit (BBU). The RU can be included in radio frequency equipment or radio frequency units, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0127] In different systems, CU (or centralized unit control plane (CU-CP)) and centralized unit user plane (CU-UP)), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an open radio access network (O-RAN or ORAN) system, CU can also be called an open centralized unit (O-CU) (open CU), DU can also be called an open distributed unit (O-DU), CU-CP can also be called an open centralized unit control plane (O-CU-CP), CU-UP can also be called an open centralized unit user plane (O-CU-UP), and RU can also be called an open radio unit (O-RU). For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the CU (or CU-CP, CU-UP), DU and RU units in this application can be implemented through a software module, a hardware module, or a combination of software and hardware modules.

[0128] In this embodiment, the form of the access network device is not limited. The device used to implement the function of the access network device can be the access network device itself; it can also be any device that supports the access network device in implementing this function, such as a communication module, chip, chip system, other components or parts, or circuits or functional components. This device can be installed in the access network device or used in conjunction with the access network device. The chip system can be composed of chips or can include chips and other discrete devices. The access network devices of the various forms described above can also be referred to as network-side devices.

[0129] The following example illustrates the connection relationships between core network equipment, access network equipment, and terminal equipment in an O-RAN system.

[0130] As shown in Figure 2, the access network equipment is an access network device (RAN, such as an eNB, gNB, or access network equipment in a future communication system). The access network device communicates with the core network (CN) via a backhaul link and with terminal devices via an air interface. The access network device may include a BBU and a RU. The BBU in the access network device communicates with the core network equipment via the backhaul link, and the RU in the access network device communicates with at least one terminal device via an air interface. The BBU communicates with at least one RU via a fronthaul link. The BBU and RU may or may not be co-located.

[0131] A BBU consists of at least one CU and at least one DU, which can communicate with each other via at least one midhaul link. Specifically, the CU in the BBU communicates with the core network via a backhaul link, and the DU in the BBU communicates with the RU via a fronthaul link.

[0132] Figure 3 shows a schematic diagram of the functional division of RAN network elements and the protocol layer structure in the O-RAN system.

[0133] In some examples, the CU is a logical node carrying the Radio Resource Control (RRC) layer, Service Data Adaptation Protocol (SDAP) layer, Packet Data Convergence Protocol (PDCP) layer, and other control functions of the access network equipment. The CU connects to network nodes such as the core network through interfaces, which can be interfaces like the E2 interface. Optionally, the CU may have some core network functions. The CU (e.g., the PDCP layer and higher layers) connects to the DU (e.g., Radio Link Control (RLC) and lower layers) through interfaces, which can be interfaces like the F1 interface. In some examples, these interfaces (e.g., the F1 interface) can provide CP and UP, interface management, system information management, UE context management, RRC message transmission, etc. F1AP is the application protocol of the F1 interface, defining the signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0134] In some examples, the CU can be split into CU-CP (control unit-control plane) and CU-UP (control unit-user plane). CU-CP is a logical node carrying the RRC layer and the control plane part of PDCP (PDCP-C), used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. AMF network elements are responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the SDAP layer and the user plane part of PDCP (PDCP-U), used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. In the core network, network elements used to implement user plane functions, such as the user plane function (UPF) in a 5G system, are responsible for forwarding and receiving data in terminal devices. The above configuration of CU and DU is merely an example; the functions of CU and DU can be configured as needed. For example, CU or DU can be configured to have more protocol layer functions, or to have only some protocol layer processing functions. For instance, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of CU or DU can be divided according to service type or other system requirements, such as by latency, placing functions that need to meet low latency requirements in the DU and functions that do not need to meet such latency requirements in the CU.

[0135] In some examples, a DU is a logical node that carries the RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the higher physical layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0136] In some examples, the RU is a logical node carrying both the lower physical layer (PHY) and radio frequency (RF) links. In some examples, the RU can be a 3rd Generation Partnership Project (3GPP) Transmitter-Receiver Point (TRP) or Remote Radio Head (RRH) with similar functionality. In some examples, the Low-PHY includes PHY processing functions such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0137] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a lower layer split-control user synchronized plane (LLS-CUS) interface through a fronthaul link. The LLS-CUS may include a lower layer split (LLS-C) interface and a lower layer split (LLS-U) interface providing the control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) (e.g., O-RAN CUS-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) (e.g., O-RAN M-Plane) refers to non-real-time management operations between the DU and RU.

[0138] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0139] The management system is used to implement functions such as mobility management, data processing, session management, policy and billing. The device names implementing the management system may differ in systems using different access technologies, and this application does not limit this. Taking a fifth-generation (5G) mobile communication system as an example, the management system may include an AMF (Active Mobile Function), a session management function (SMF), a policy control function (PCF), or a UPF (Upload and Utility Function), etc.

[0140] Figure 4 is a schematic diagram of the architecture for communication between access network equipment and terminal equipment. As shown in Figure 4, the terminal equipment includes a processor 401, a memory 402, and a transceiver 403. The transceiver 403 includes a transmitter 403a, a receiver 403b, and an antenna 403c. The access network equipment includes a processor 411, a memory 412, and a transceiver 413. The transceiver 413 includes a transmitter 413a, a receiver 413b, and an antenna 413c. The receiver 403b can be used to receive transmission control information through the antenna 403c, and the transmitter 403a can be used to send transmission feedback information to the access network equipment through the antenna 403c. The transmitter 413a can be used to send transmission control information to the terminal equipment through the antenna 413c, and the receiver 413b can be used to receive transmission feedback information sent by the terminal equipment through the antenna 413c.

[0141] To support AI technologies in wireless networks, such as training or inferring models (i.e. using AI models), AI nodes may also be introduced into the communication system.

[0142] Optionally, the AI ​​node can be deployed in one or more of the following locations within the communication system: access network equipment, terminal equipment, or core network equipment, etc. Alternatively, the AI ​​node can be deployed independently, for example, in a location other than any of the aforementioned devices, such as in the host or cloud server of an over-the-top (OTT) system. The AI ​​node can communicate with other devices in the communication system, which can be, for example, one or more of the following: access network equipment, terminal equipment, or core network elements, etc.

[0143] It is understood that this application does not limit the number of AI nodes. For example, when there are multiple AI nodes, these nodes can be divided based on function, such as different AI nodes being responsible for different functions.

[0144] It can also be understood that AI nodes can be independent devices, integrated into the same device to implement different functions, or they can be network elements in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (e.g., a cloud platform). This application does not limit the specific form of the AI ​​nodes described above. Among them, AI nodes can be AI network elements or AI modules.

[0145] Figure 5 illustrates a possible application framework in a communication system. As shown in Figure 5, network elements in the communication system are connected via interfaces (e.g., NG, Xn) or over-the-air interfaces. These network element nodes, such as core network equipment, access network nodes (RAN nodes), terminal equipment, or one or more devices in OAM, are equipped with one or more AI modules (only one is shown in Figure 5 for clarity). An access network node can be a single RAN device or can include multiple devices, such as CUs and DUs. The CUs and / or DUs can also be equipped with one or more AI modules. Optionally, a CU can be further divided into CU-CP and CU-UP. One or more AI models are configured in the CU-CP and / or CU-UP.

[0146] AI modules are used to implement corresponding AI functions. AI modules deployed in different network elements can be the same or different. Depending on the parameter configuration, the AI ​​module can implement different functions. The AI ​​module model can be configured based on one or more of the following parameters: structural parameters (e.g., at least one of the following: number of neural network layers, neural network width, inter-layer connections, neuron weights, neuron activation function, or biases in the activation function), input parameters (e.g., the type and / or dimension of the input parameters), or output parameters (e.g., the type and / or dimension of the output parameters). The biases in the activation function can also be referred to as the neural network biases.

[0147] An AI module can have one or more models. A model can infer an output, which includes one or more parameters. The learning, training, or inference processes of different models can be deployed on different nodes or devices, or they can be deployed on the same node or device.

[0148] For ease of understanding, the technical terms and technologies involved in the embodiments of this application are described below.

[0149] 1. Peak-to-average power ratio (PAPR):

[0150] PAPR is a waveform measurement parameter that refers to the ratio of peak power to average power of a time-domain signal. Since an orthogonal frequency-division multiplexing (OFDM) symbol is composed of multiple independently modulated subcarrier signals superimposed, when the phases of each subcarrier are the same or similar, the superimposed signal will be modulated by a signal with the same initial phase, thereby generating a large instantaneous power peak and further resulting in a high peak-to-average power ratio.

[0151] 2. Error vector magnitude (EVM):

[0152] EVM is the root mean square value of the ratio of the average error vector signal power to the average reference signal power. It can be used to represent the difference between the theoretical waveform and the received actual waveform. EVM can be used to measure the degree of in-band signal distortion. In particular, excessively high peak signal power will cause EVM degradation in the power amplifier (PA), that is, the signal will undergo nonlinear distortion after passing through the PA, resulting in an increased EVM.

[0153] 3. Adjacent Channel Leakage Ratio (ACLR):

[0154] ACLR is the ratio of the average power of a filtered channel to the average power of adjacent channels. ACLR can be used to measure the level of interference caused by a transmitted signal to adjacent channels, that is, the spectral spread interference generated after the signal passes through a power amplifier.

[0155] 4. Neural networks and artificial intelligence (AI) models:

[0156] Neural networks are one of the ways to implement artificial intelligence. The AI ​​model involved in this application embodiment also refers to a neural network. A neural network is a mathematical model that uses the behavioral characteristics of animal neural networks as a model to process information and data. As shown in Figure 6, a neural network consists of three computational layers: an input layer, a hidden layer, and an output layer. Each of the three computational layers includes one or more neurons, which are the basic units of the neural network. Each neuron consists of parameters to be trained (weights w and biases b) and a nonlinear activation function f. For example, if a neuron has weights w and biases b, then the relationship between the input parameter x and the output parameter y of the neuron is as follows: y = f(w*x + b). Multiple neurons can be interconnected to form a neural network (also called a neural network model). A neural network can achieve the effect of "learning" by continuously updating the parameters to be trained and performing nonlinear function calculations on the weighted sum of the inputs to fit the final output. Neural networks can include feedforward neural networks (FNN), convolutional neural networks (CNN), or recurrent neural networks (RNN), etc., which will not be listed here. Neural networks can also be deep neural networks (DNNs), which are neural networks with multiple hidden layers.

[0157] AI models can be implemented using one or more of the following methods, or represent the mapping relationship between input and output parameters: neural networks, deep learning, reinforcement learning, machine learning, federated learning, distributed learning, etc. For example, an AI model can be a network learned using a DNN, i.e., a network obtained through deep learning. AI models can also be called AI networks, neural network models, or machine learning models.

[0158] 5. Frequency domain unit: A frequency domain unit refers to a unit of frequency domain resources. A frequency domain unit can be a resource block (RB), a physical resource block (PRB), a resource block group (RBG), a virtual resource block (VRB), or a subcarrier.

[0159] 6. Signal transmission process:

[0160] As shown in Figure 7, in the signal transmission process, the signal to be transmitted undergoes constellation modulation to obtain constellation symbols. When using a single-carrier waveform, such as a Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform, the constellation symbols are pre-coded and then frequency-domain mapped to obtain the frequency-domain signal. When using an OFDM waveform, the constellation symbols can be directly frequency-domain mapped to obtain the frequency-domain signal. The frequency-domain signal undergoes an inverse fast Fourier transform (IFFT) to obtain a time-domain signal. A cyclic prefix (CP) is added to this time-domain signal, and time-domain mapping is performed on the CP-added time-domain signal to obtain the time-domain symbol. This time-domain symbol undergoes digital-to-analog conversion (DAC) to obtain an analog signal. The analog signal then undergoes power back-off, up-conversion, and PA amplification to achieve signal transmission.

[0161] The power amplification operation described above can amplify the signal power through a power amplifier (PA). As shown in Figure 8, in the lower power range (linear range) of the signal point, the power of the amplified signal is linearly related to the power of the signal before amplification. In the higher power range (nonlinear range) of the signal point, the signal will produce nonlinear distortion after being amplified by the PA. The nonlinear distortion is even greater after the 1 dB gain compression point, with the input power P... 1dB,in The corresponding actual output power P 1dB,out With P 1dB,inThe output power of the signals differs by 1 dB during linear amplification. At the same average transmit power, signals with higher PAPR will have more points falling into the nonlinear region shown in Figure 8. In other words, signals with excessively high PAPR will undergo nonlinear changes after passing through the PA, resulting in in-band signal distortion and out-of-band power leakage. The magnitude of PAPR is related to the modulation method and waveform of the signal. For example, the PAPR distribution of DFT-s-OFDM waveforms under different modulation methods is shown in Figure 9. For all modulation methods, signals with OFDM or DFT-s-OFDM waveforms have relatively high PAPR. For instance, under quadrature phase shift keying (QPSK), the PAPR of an OFDM signal is approximately 9.7 dB, and the PAPR of a DFT-s-OFDM signal is approximately 6.5 dB. Therefore, both OFDM and DFT-s-OFDM waveforms suffer from in-band signal distortion and out-of-band power leakage. The nonlinear distortion of the aforementioned signals can cause distortion of the in-band signal, thus affecting the EVM; out-of-band energy leakage can interfere with adjacent out-of-band channels, thus affecting the ACLR.

[0162] To mitigate signal distortion and reduce the impact of nonlinear distortion, the transmitting end performs power back-off before transmitting the signal, i.e., reduces the transmission power. This results in a lower average power of the transmitted signal, leading to a smaller signal coverage area and a lower signal-to-noise ratio (SNR). Specifically, the higher the PAPR (PAR), the greater the power back-off at the transmitting end, resulting in a smaller signal coverage area and a lower SNR.

[0163] In summary, the above signal transmission process suffers from limited signal coverage and low signal-to-noise ratio.

[0164] To mitigate the problem of nonlinear distortion in signals, one possible embodiment provides a communication method in which a first device acquires a first signal generated from a second signal and a first model, and transmits both the first and second signals. The first signal can be used to reduce the peak-to-average power ratio (PAPR) of the second signal, or the PAPR of the first and second signals can be less than the PAPR of the second signal. This reduces the PAPR of the signals, decreases the power back-off required when the first device transmits the signal, thereby improving signal coverage and signal-to-noise ratio (SNR).

[0165] In another possible embodiment, a communication method is provided in which a first device can acquire signal #1 and transmit signal #1 and signal #2, which are carried on the same frequency domain resources. Signal #1 is used to reduce the peak-to-average power ratio (PAPR), or the PAPR of both signal #1 and signal #2 is lower than the PAPR of signal #2. This reduces the PAPR of the signals, decreases the power back-off required when the first device transmits signals, thereby improving signal coverage and signal-to-noise ratio.

[0166] The communication method provided in this application can be applied to any two nodes in the communication system shown in Figure 1, such as between terminal devices or between a terminal device and an access network device. For specific implementation, please refer to the following method embodiments, which will not be repeated here.

[0167] It should be noted that the solutions in the embodiments of this application can also be applied to other communication systems, and the corresponding names can be replaced by the names of the corresponding functions in other communication systems.

[0168] It should be understood that Figure 1 is a simplified schematic diagram for ease of understanding only, and the communication system may also include other access network devices and / or other terminal devices, which are not shown in Figure 1.

[0169] The method provided in the embodiments of this application will be described below in conjunction with a first device and a second device, wherein the first device may be a terminal device and the second device may be a terminal device or an access network device.

[0170] The communication method provided in the embodiments of this application will be described in detail below with reference to Figures 10-16.

[0171] In some embodiments, the first device may send a symbol sequence other than the symbol sequence corresponding to the useful information in order to reduce the PAPR of the useful information.

[0172] For example, Figure 10 is a schematic flowchart of a communication method provided in an embodiment of this application. This communication method can be applied to communication between any two nodes shown in Figure 1.

[0173] As shown in Figure 10, the communication method includes the following steps:

[0174] S1001, the first device acquires the first signal.

[0175] The first signal is generated based on at least the second signal and the first model. The first signal satisfies at least one of the following conditions: it is used to reduce the peak-to-average power ratio. Alternatively, the peak-to-average power ratio of the first signal and the second signal is less than the peak-to-average power ratio of the second signal.

[0176] The second signal is the useful information that the first device needs to send, such as service data, signaling, or a signal corresponding to a reference signal (RS), or the signal corresponding to useful information that the first device and the second device need to exchange. In other words, the second signal is a signal that carries useful information.

[0177] The first model is used to generate a signal that reduces the peak-to-average power ratio. The first model can be an AI model. For example, an AI model can also be called an AI network, a neural network model, or a machine learning model. The first model can be trained by a second device, or it can be trained by the first device itself. It should be understood that the first model can also be trained by other third-party network elements. In this case, optionally, the first device can send the information used to train the first model (such as the first training data described below) to the third-party network element. In this way, the first device can determine the information to send to the third-party device, balancing information security and the computational complexity of the first device. Alternatively, optionally, the second device can also send the information used to train the first model to the third-party network element. Optionally, the third-party network element can also send the first model to the first device. This third-party network element can be a core network element such as an access and mobility management function (AMF) network element or a user plane function (UPF) network element, or it can be an operations, administration and maintenance (OAM) cloud server or other network element, without limitation. In the embodiments of this application, the first model can be one of one or more first-type models.

[0178] The first signal can be a reserved symbol sequence. It can be used to cancel out the peak power of the time-domain signal, thereby reducing the peak-to-average power ratio of the second signal. The first signal can also be called a reserved symbol or reserved signal. It should be understood that the first signal does not carry any useful information.

[0179] In one possible implementation, the power of the first signal may be less than or equal to a first power threshold.

[0180] In this way, the power of the first signal can be avoided from being too high, the impact of the transmission power of the second signal can be reduced, and thus the impact on the reception performance of the second signal can be reduced.

[0181] Optionally, the power of the first signal may refer to the average power of the first signal or the maximum power of the first signal.

[0182] The first power threshold can be one of a plurality of candidate power thresholds. Optionally, the plurality of candidate power thresholds can be pre-configured in the first device, in which case the first power threshold can be determined by the first device from the plurality of candidate power thresholds. Alternatively, the plurality of candidate power thresholds can be pre-configured in the second device, and the first power threshold can be indicated by the second device.

[0183] Optionally, the first power threshold is related to one or more of the following: the number L of frequency domain units occupied by the first frequency domain resource set. TR The frequency domain location of the first frequency domain resource set and the number of frequency domain units L occupied by the second frequency domain resource set. data Related information. For details regarding the first and second frequency domain resource sets, please refer to the relevant descriptions in S1002 below; they will not be repeated here. L TR L data All values ​​are positive integers. As an example, the first power threshold corresponds to one or more of the following: the number of frequency domain units occupied by the first frequency domain resource set, the frequency domain position of the first frequency domain resource set, and the number of frequency domain units occupied by the second frequency domain resource set. For example, the first power threshold E... TR The correspondence between the number of frequency domain units occupied by the first frequency domain resource set, the frequency domain position of the first frequency domain resource set, and the position of the frequency domain units occupied by the second frequency domain resource set can be shown in any of the correspondences in Table 1.

[0184] Table 1

[0185] For example, the first power threshold can be related to the frequency domain location of the frequency domain resource carrying the first signal, that is, the frequency domain location of the first frequency domain resource set, such as the power threshold corresponding to the carrier occupied by the first frequency domain resource set. It can be understood that frequency domain resources at different frequency domain locations, such as carriers, can correspond to a single power threshold, and the power thresholds corresponding to frequency domain resources at different frequency domain locations can be the same or different.

[0186] It should be understood that the first power threshold E shown in Table 1 TR The number of frequency domain units occupied by the first frequency domain resource set, the frequency domain location of the first frequency domain resource set, and the frequency domain units occupied by the second frequency domain resource set are only examples. In actual implementation, the first power threshold E TR Other correspondences may exist between the number of frequency domain units occupied by the first frequency domain resource set, the frequency domain position of the first frequency domain resource set, and the frequency domain units occupied by the second frequency domain resource set. In this embodiment, the first power threshold E TRThe correspondence between the number of frequency domain units occupied by the first frequency domain resource set, the frequency domain location of the first frequency domain resource set, and the location of the frequency domain units occupied by the second frequency domain resource set can also be implemented in other possible forms besides tables. When the frequency domain location of the first frequency domain resource set is different, the correspondence between the first power threshold and the number of frequency domain units occupied by the first and second frequency domain resource sets may be the same or different. Specifically, the number of frequency domain units occupied by the first frequency domain resource set can be one of the numbers of one or more frequency domain resource sets used to carry reserved symbols. These one or more frequency domain resource sets used to carry reserved symbols can be pre-configured in the first device, such as as agreed upon by a protocol. Alternatively, the number of frequency domain units occupied by the first frequency domain resource set can be configured by the second device to the first device.

[0187] In one possible implementation, the number of frequency domain units occupied by the first signal can be less than or equal to the number of frequency domain units occupied by the first frequency domain resource set. In other words, the first signal is mapped to at least a portion of the resources in the first frequency domain resource set. The first frequency domain resource set includes at least one frequency domain unit. This avoids interference between the first signal and signals on other frequency domain resources.

[0188] In one possible implementation, the average power of the first signal is less than or equal to a second power threshold, or the interference generated by the first signal on the third signal in the first frequency domain resource set is less than or equal to an interference threshold, wherein the first frequency domain resource is the frequency domain resource carrying the first signal.

[0189] The third signal can be useful information carried on the first frequency domain resource set, and it differs from the second signal. The second power threshold is less than or equal to the maximum allowable power of the first signal when the second device can correctly demodulate the third signal. The interference threshold is less than or equal to the maximum allowable interference of the first signal to the third signal when the second device can correctly demodulate the second signal.

[0190] In one possible implementation, the first signal is generated at least based on the second signal and the first model, and may include: the first signal is generated based on the second signal, the first model, and one or more of the following information: a first power threshold, or the number of frequency domain units occupied by the first frequency domain resource set.

[0191] As an example, the first signal can be obtained using one of methods one through four. These are explained below:

[0192] In one approach, the first signal can be the output signal obtained by inputting the second signal, the first power threshold, and the number of frequency domain units occupied by the first frequency domain resource set as input parameters into the first model.

[0193] In the second method, the first signal can be obtained by processing the third signal according to a first power threshold. The third signal can be the output signal obtained by inputting the second signal and the number of frequency domain units occupied by the first frequency domain resource set as input parameters of the first model.

[0194] In method three, the first signal can be obtained by processing the fourth signal based on the number of frequency domain units occupied by the first frequency domain resource set and the first power threshold. The fourth signal can be the output signal obtained by inputting the second signal and the first power threshold as input parameters to the first model.

[0195] Method four: The first signal can be obtained by processing the fifth signal. The fifth signal can be the output signal obtained by inputting the second signal as an input parameter to the first model. The first signal can be the signal obtained by processing the third signal according to the first power threshold and the number of frequency domain units occupied by the first frequency domain resource set.

[0196] It should be understood that the aforementioned first signal can be generated by the first device. Alternatively, when the first model is located in a third-party network element, the first signal can be generated by the third-party network element and then sent to the first device. When the first signal is generated by the third-party network element and the first model is generated by the first device, the terminal device can send the first power threshold, the number of frequency domain units occupied by the first frequency domain resource set, and the second signal to the third-party network element to generate the first signal. In this way, the first device can determine the information to be sent to the third-party device, balancing information security and the computational complexity of the first device. Alternatively, when the first signal is generated by the third-party network element and the first model is generated by the second device, the second device can send the second signal to the third-party network element.

[0197] The peak-to-average power ratio of the first signal and the second signal refers to the peak-to-average power ratio of the superimposed first signal and the second signal.

[0198] S1002, the first device sends a first signal and a second signal. Correspondingly, the second device receives the first signal and the second signal.

[0199] The first signal is carried on a first frequency domain resource set, and the second signal is carried on a second frequency domain resource set. The resources in the first frequency domain resource set and the resources in the second frequency domain resource set are orthogonal to each other.

[0200] The second frequency domain resource set is used to carry the second signal. The second frequency domain resource set includes at least one frequency domain cell. The resources of the first and second frequency domain resource sets are orthogonal to each other, meaning that each frequency domain cell in the first and second frequency domain resource sets is orthogonal to each other. Taking a subcarrier as an example, the orthogonality of the resources of the first and second frequency domain resource sets means that each subcarrier in the first and second frequency domain resource sets is orthogonal to each other. This can also be understood as the signals carried on the first frequency domain resource set not interfering with each other. In this case, the first and second signals do not interfere with each other. It can also be understood that the frequency domain cells occupied by the first and second frequency domain resource sets do not overlap at all. The second frequency domain resource set is one of one or more candidate frequency domain resource sets used to carry useful signals. These candidate frequency domain resource sets may be pre-configured in the first device, such as by agreement. Alternatively, the second frequency domain resource set may be indicated by the second device. It should be understood that the frequency domain resources occupied by the second set of frequency domain resources are at least a portion of the frequency domain resources configured by the second device for the first device. A frequency domain unit is a unit of frequency domain resources and can be an RB, subcarrier, or other possible unit. This avoids interference between the first signal and the second signal.

[0201] The first frequency domain resource set is used to carry the first signal. The first frequency domain resource set includes at least one frequency domain cell, and the frequency domain cell occupied by the first frequency domain resource set can also be called a reserved frequency domain cell. For example, when the frequency domain cell is a subcarrier, the frequency domain cell occupied by the first frequency domain resource set can also be called a reserved subcarrier.

[0202] In some possible implementations, the first frequency domain resource set may include a portion of the frequency domain resources configured by the second device for the first device. In this case, the positional relationship between the first frequency domain resource set and the frequency domain resources configured by the second device for the first device is shown in Figure 11(a). In other possible implementations, the first frequency domain resource set may include frequency domain resources other than those configured by the second device for the first device. Optionally, the first frequency domain resource set may also be resources used to carry a third signal. In this case, the positional relationship between the first frequency domain resource set and the frequency domain resources configured by the second device for the first device is shown in Figure 11(b). In still other possible implementations, the first frequency domain resource set may include at least a portion of the frequency domain resources configured by the second device for the first device, and frequency domain resources other than those configured by the second device for the first device. In this case, the positional relationship between the first frequency domain resource set and the frequency domain resources configured by the second device for the first device is shown in Figure 11(c).

[0203] In one possible implementation, the first frequency domain resource set is determined based on the number of frequency domain cells occupied by the first frequency domain resource set, the positional relationship between the first frequency domain resource set and the second frequency domain resource set, and the number of frequency domain cells occupied by the guard interval between the resources in the second frequency domain resource set and the resources in the first frequency domain resource set.

[0204] Optionally, the number of frequency domain units occupied by the guard interval between the resources in the second frequency domain resource set and the resources in the first frequency domain resource set is related to the positional relationship between the first frequency domain resource set and the second frequency domain resource set.

[0205] Optionally, the number of frequency domain units occupied by the first frequency domain resource set is positively correlated with the number of frequency domain units occupied by the second frequency domain resource set. That is, the more frequency domain units the second frequency domain resource set occupies, the more frequency domain units the first frequency domain resource set occupies. Conversely, the fewer frequency domain units the second frequency domain resource set occupies, the fewer frequency domain units the first frequency domain resource set occupies.

[0206] Taking frequency domain units as RB as an example, the number L of frequency domain units occupied by the second frequency domain resource set data The number L of frequency domain units occupied by the first frequency domain resource set TR Satisfying any of the correspondences shown in Table 2 below:

[0207] Table 2

[0208] It should be understood that the correspondence shown in Table 1 above is for illustrative purposes only. In actual implementation, there may be other correspondences between the number of frequency domain units occupied by the first frequency domain resource set and the number of frequency domain units occupied by the second frequency domain resource set. In the embodiments of this application, the relationship between the number of frequency domain units occupied by the first frequency domain resource set and the number of frequency domain units occupied by the second frequency domain resource set can also be implemented in other possible forms besides the table, which will not be elaborated here. The number of frequency domain units occupied by the first frequency domain resource set can also be understood as the length of the first frequency domain resource set, or the bandwidth of the first frequency domain resource set, or the number of reserved frequency domain units. The number of frequency domain units occupied by the second frequency domain resource set can also be understood as the length of the second frequency domain resource set, or the bandwidth of the second frequency domain resource set, or the data bandwidth.

[0209] In this way, the first signal can avoid occupying too many resources, while taking into account both spectral efficiency and peak-to-average power ratio.

[0210] Alternatively, the number of frequency domain units occupied by the first frequency domain resource set is related to the coverage improvement requirement of the first device. The coverage improvement requirement of the first device is the required increase in the average power of the transmitted signal. The higher the average power of the transmitted signal that the first device needs to increase, the higher the coverage improvement requirement. The lower the average power of the transmitted signal that the first device needs to increase, the lower the coverage improvement requirement. The coverage improvement requirement of the first device can be represented by one or more of the following: multipath between the first device and the second device, or by hardware transmission of the first device. In this case, the number of frequency domain units occupied by the first frequency domain resource set is related to at least one of the following: multipath between the first device and the second device, the hardware transmission capability of the first device, and the distance between the first device and the second device.

[0211] In this way, both coverage requirements and spectrum efficiency can be taken into account.

[0212] The following, in conjunction with cases 1 to 4, explains the positional relationship between the first frequency domain resource set and the second frequency domain resource set, as well as the number of frequency domain units occupied by the protection interval between the resources in the second frequency domain resource set and the resources in the first frequency domain resource set.

[0213] Scenario 1:

[0214] The positional relationship between the first frequency domain resource set and the second frequency domain resource set refers to the fact that the frequency point of the frequency domain unit occupied by the first frequency domain resource set is less than the frequency point of the frequency domain unit occupied by the second frequency domain resource set (hereinafter referred to as positional relationship one).

[0215] Taking the frequency point of a frequency domain cell as an example, as shown in Figure 12(a), assuming that the starting frequency points of the frequency domain cells gradually increase from left to right, then positional relationship one can also be understood as the frequency domain cells occupied by the first frequency domain resource set being located to the left of the frequency domain resources occupied by the second frequency domain resource set. Alternatively, assuming that the index of a frequency domain cell with a larger starting frequency point is larger, then positional relationship one can also be understood as the largest index among the indices of the frequency domain cells occupied by the first frequency domain resource set being smaller than the smallest index among the indices of the frequency domain cells occupied by the second frequency domain resource set.

[0216] In Case 1, the guard interval between the resources in the second frequency domain resource set and the resources in the first frequency domain resource set is called the first guard interval. The number of frequency domain cells occupied by the first guard interval is called the first quantity (k1), which is the number of frequency domain cells in the interval between the frequency domain cell with the largest starting frequency in the first frequency domain resource set and the frequency domain cell with the smallest starting frequency in the second frequency domain resource set. In this case, the positional relationship between the guard interval, the first frequency domain resource set, and the second frequency domain resource set is shown in Figure 12(a).

[0217] Scenario 2:

[0218] The positional relationship between the first frequency domain resource set and the second frequency domain resource set refers to the fact that the frequency point of the frequency domain unit occupied by the first frequency domain resource set is greater than the frequency point of the frequency domain unit occupied by the second frequency domain resource set (hereinafter referred to as positional relationship two).

[0219] Taking the frequency point of a frequency domain unit as an example, as shown in Figure 12(b), assuming that the starting frequency points of the frequency domain units gradually increase from left to right, then positional relationship two can also be understood as the frequency domain units occupied by the first frequency domain resource set being located to the right of the frequency domain resources occupied by the second frequency domain resource set. Alternatively, assuming that the index of a frequency domain unit with a larger starting frequency point is larger, then positional relationship two can also be understood as the smallest index among the indices of the frequency domain units occupied by the first frequency domain resource set being greater than the largest index among the indices of the frequency domain units occupied by the second frequency domain resource set.

[0220] In this case, if the waveform used to transmit the signal is a single carrier, such as DFT-s-OFDM, the coverage effect can be further improved.

[0221] In case 2, the guard interval between the resources in the second frequency domain resource set and the resources in the first frequency domain resource set is called the second guard interval. The second number (k2) of the intermediate frequency domain units in the second guard interval is the number of frequency domain units in the interval between the frequency domain unit with the largest starting frequency in the second frequency domain resource set and the frequency domain unit with the smallest starting frequency in the first frequency domain resource set. In this case, the positional relationship between the second guard interval, the first frequency domain resource set, and the second frequency domain resource set is shown in Figure 12(b).

[0222] Scenario 3:

[0223] The positional relationship between the first frequency domain resource set and the second frequency domain resource set refers to the following: the frequency point of the frequency domain unit occupied by the first frequency domain resource in the first frequency domain resource set is lower than the frequency point of the frequency domain unit occupied by the second frequency domain resource set, and the frequency point of the frequency domain unit occupied by the second frequency domain resource in the first frequency domain resource set is higher than the frequency point of the frequency domain unit occupied by the second frequency domain resource set (hereinafter referred to as positional relationship three). Here, the second frequency domain resource refers to the frequency domain resources in the first frequency domain resource set other than the first frequency domain resource.

[0224] Taking the frequency point of a frequency domain cell as an example, as shown in Figure 12(c), assuming that the starting frequency points of the frequency domain cells gradually increase from left to right, then positional relationship three can also be understood as the frequency domain cells occupied by the first frequency domain resource set being located on both sides of the frequency domain resources occupied by the second frequency domain resource set; that is, the first frequency domain resource is located to the left of the second frequency domain resource set, and the second frequency domain resource is located to the right of the second frequency domain resource set. Alternatively, assuming that the index of a frequency domain cell with a larger frequency point is larger, then positional relationship three can also be understood as the index of the frequency domain cell occupied by the first frequency domain resource being smaller than the smallest index among the indices of the frequency domain cells occupied by the second frequency domain resource set, and the index of the frequency domain cell occupied by the second frequency domain resource being larger than the largest index among the indices of the frequency domain cells occupied by the second frequency domain resource set.

[0225] In this case, assume that the number of frequency domain units occupied by the first frequency domain resource is L. TR1 The number of frequency domain units occupied by the second frequency domain resource is L. TR2 So, L TR =L TR1 +L TR2 .

[0226] In scenario 3, the protection interval between the resources in the second frequency domain resource set and the resources in the first frequency domain resource set may include a third protection interval and a fourth protection interval. The third protection interval is the protection interval between the first frequency domain resource and the second frequency domain resource set. The number of frequency domain units occupied by the third protection interval is the third quantity (k3), which is the number of frequency domain units in the interval between the frequency domain unit with the largest starting frequency in the first frequency domain resource and the frequency domain unit with the smallest starting frequency in the second frequency domain resource set. The fourth protection interval is the protection interval between the second frequency domain resource and the second frequency domain resource set. The number of frequency domain units occupied by the fourth protection interval is the fourth quantity (k4), which is the number of frequency domain units in the interval between the frequency domain unit with the largest starting frequency in the second frequency domain resource set and the frequency domain unit with the smallest starting frequency in the second frequency domain resource set. In this case, the positional relationship between the third protection interval, the fourth protection interval, the first frequency domain resource set, and the second frequency domain resource set is shown in Figure 12(c).

[0227] Scenario 4:

[0228] The positional relationship between the first frequency domain resource set and the second frequency domain resource set refers to the fact that the resources in the second frequency domain resource set and the resources in the first frequency domain resource set are distributed in a comb-like pattern (hereinafter referred to as positional relationship four).

[0229] It should be understood that positional relationship four can also be interpreted as: the resources in the first frequency domain resource set and the resources in the second frequency domain resource set are interspersed, interplaced, or alternately placed. In this case, the frequency domain resources occupied by the second frequency domain resource set are dispersed in different frequency domain locations, and the frequency domain resources occupied by the first frequency domain resource set are dispersed in different frequency domain locations.

[0230] As an example, the resource distribution in the first frequency domain resource set and the resource distribution in the second frequency domain resource set are shown in Figure 12(d). It should be understood that the positional relationship between the first frequency domain resource set and the second frequency domain resource set in Figure 12(d) is for illustrative purposes only.

[0231] In case 4, the number of frequency domain cells occupied by the guard interval between resources in the second frequency domain resource set and resources in the first frequency domain resource set can include: the number of frequency domain cells between the guard intervals between any two adjacent resources in the first and second frequency domain resource sets. The number of frequency domain cells between the guard intervals between any two adjacent resources in the first and second frequency domain resource sets can be the same, which is the fifth number k5. In this case, the positional relationship between the guard interval, the first frequency domain resource set, and the second frequency domain resource set is shown in Figure 12(d). It should be understood that the number of frequency domain cells between the guard intervals between any two adjacent resources in the first and second frequency domain resource sets can be the same or different.

[0232] In this embodiment of the application, the frequency point of the frequency domain unit may refer to the starting frequency point of the frequency domain unit, or the ending frequency point of the frequency domain unit, or the center frequency point of the frequency domain unit, etc. This embodiment of the application does not limit this, and the definition of the frequency point of the frequency domain unit can be the same for different frequency domain units.

[0233] The above scenarios 1 to 4 are for illustrative purposes only. In actual implementation, there may be other positional relationships between the first frequency domain resource set and the second frequency domain resource set, which will not be elaborated here.

[0234] It should be understood that in some scenarios, the number of frequency domain units occupied by the guard interval between the resources in the second frequency domain resource set and the resources in the first frequency domain resource set can be 0. That is, the aforementioned first, second, third, fourth, or fifth quantities can be 0. In other words, k1, k2, k3, k4, and k5 are all positive integers. In this case, it can also be understood that the first frequency domain resource set is determined based on the number of frequency domain units occupied by the first frequency domain resource set and the positional relationship between the first and second frequency domain resource sets.

[0235] The following examples, based on cases 1 to 4 above, illustrate the principles for determining the first frequency domain resource set and for transmitting the first and second signals.

[0236] In case 1, the first frequency domain resource set includes L starting frequencies whose starting frequencies are less than the first guard interval. TR One frequency domain unit. This L TRThe indices of frequency domain cells can be consecutive or non-consecutive. For example, suppose the index of the starting frequency domain cell (the frequency domain cell with the smallest starting frequency) in the second frequency domain resource set is n. Then, the indices of the frequency domain cells occupied by the first guard interval are from index n-k1 to index n-1, and the indices of the frequency domain cells occupied by the first frequency domain resource set are index n-k1-L. TR Up to index n-k1-1. Where n is a positive integer.

[0237] In scenario 2, the first frequency domain resource set includes L with a starting frequency greater than the second guard interval. TR One frequency domain unit. This L TR The indices of frequency domain units can be consecutive or non-consecutive. For example, suppose the index of the ending frequency domain unit (the frequency domain unit with the largest starting frequency) in the second frequency domain resource set is m. Then, the indices of the frequency domain units occupied by the second guard interval are from index m+1 to index m+k2, and the indices of the frequency domain units occupied by the first frequency domain resource set are from index m+k2+1 to index m+k2+L. TR Where m is a positive integer.

[0238] In case 3, the first frequency domain resource set includes L with a starting frequency point less than the third guard interval. TR1 Each frequency domain element, and L in the first frequency domain resource set whose starting frequency is greater than the starting frequency of the fourth guard interval. TR2 One frequency domain unit. Among them, L, whose starting frequency is less than the starting frequency of the third guard interval. TR1 The indices of frequency domain units can be consecutive or non-consecutive. The starting frequency L is greater than the starting frequency of the fourth guard interval. TR2 The indices of frequency domain cells can be consecutive or non-consecutive. For example, suppose the index of the starting frequency domain cell (the frequency domain cell with the smallest starting frequency) in the second frequency domain resource set is n, and the index of the ending frequency domain cell (the frequency domain cell with the largest starting frequency) in the second frequency domain resource set is m. Then, the indices of the frequency domain cells occupied by the third guard interval are from index n-k3 to index n-1, and the indices of the frequency domain cells occupied by the first frequency domain resource set are index n-k3-L. TR The frequency domain cells occupied by the fourth guard interval, from index n-k3-1, are indices m+1 to m+k4, and the frequency domain cells occupied by the first frequency domain resource set are indices m+k4+1 to m+k4+L. TR .

[0239] Among them, L TR1 L TR2 All are integers. In L TR1 When L = 0, TR2 =L TRIn this case, scenario 3 is equivalent to scenario 2. In L TR2 When L = 0, TR1 =L TR In this case, situation 3 is the same as situation 1.

[0240] In case 4, the first set of frequency domain units includes at least the frequency domain units whose starting frequency is located between the starting and ending frequency domain units of the second set of frequency domain resources.

[0241] For example, as shown in Figure 12(d), suppose the second frequency domain resource set includes frequency domain resources 1 to 5, and each frequency domain resource from frequency domain resources 1 to 5 includes the same number of frequency domain units. The index of the starting frequency domain cell in the second frequency domain resource set is n; the first frequency domain resource set includes frequency domain resources #1 to #4, and each frequency domain resource from #1 to #4 includes the same number of frequency domain cells, which is L. TR′ Therefore, the index of the frequency domain unit occupied by the first frequency domain resource is: [index is missing in original text] To index index To Index index To Index index To Index

[0242] It should be understood that, in case 4, the number of frequency domain units included in each frequency domain resource in the first frequency domain resource set may be the same or different, and the number of frequency domain units included in each frequency domain resource in the second frequency domain resource set may be the same or different, which will not be elaborated further. In the embodiments of this application, a frequency domain resource may refer to frequency domain resources that are contiguous in the frequency domain.

[0243] In cases 1 and 2 above, in S1002, the first device can map the symbol sequence of the first signal to the first frequency domain resource set, and the first device can map the symbol sequence of the generated second signal to the second frequency domain resource set. In case 3 above, in S1002, the first device can divide the symbol sequence of the first signal into two sequence blocks and map them to the first and second frequency domain resources respectively; the first device can also map the symbol sequence of the second signal to the second frequency domain resource set. In case 4 above, the first device can divide the symbol sequence of the first signal into multiple sequence blocks and map them to the frequency domain resources occupied by the first frequency domain resource set; similarly, the first device divides the symbol sequence of the first signal into multiple sequence blocks and maps them to the frequency domain resources occupied by the second frequency domain resource set.

[0244] In one possible implementation, the number of frequency domain units occupied by the second frequency domain resource set and the first frequency domain resource set, as well as the positional relationship between the first and second frequency domain resource sets, can be indicated by first configuration information, which is used to transmit the first and second signals. In this case, in S1002, the transmission of the first and second signals by the first device may include: the first device transmitting the first and second signals at least according to the first configuration information.

[0245] The first configuration information can directly indicate the number of frequency domain units occupied by the first frequency domain resource set. For example, the first configuration information may include the number of frequency domain units occupied by the first frequency domain resource set, such as 2RB, 4RB, etc. Alternatively, the first configuration information can indirectly indicate the number of frequency domain units occupied by the first frequency domain resource set. For example, the first configuration information may indicate the ratio between the number of frequency domain units occupied by the first frequency domain resource set and the number of frequency domain units occupied by the second frequency domain resource set. For example, the ratio between the first and second frequency domain resource sets could be 1 / 8, 1 / 4, 1 / 2, etc., which will not be elaborated further. Alternatively, the first configuration information may indicate the position of the starting frequency domain unit in the first frequency domain resource set, the position of the ending frequency domain unit in the first frequency domain resource set, and the number of frequency domain units with frequencies lower than those of the second frequency domain resource set and / or the number of frequency domain units with frequencies higher than those of the second frequency domain resource set.

[0246] In addition, the first configuration information may also be used to indicate one or more of the following: the modulation method of the second signal, and the waveform of the second signal.

[0247] Optionally, as shown in Figure 12(a), in case 1, the first configuration information can also be used to indicate: the number M1 of frequency domain elements included in the first frequency domain resource set, the first protection interval, and the sixth protection interval. The sixth protection interval is the protection interval between the first frequency domain resource set and resources with frequencies less than the starting frequency of the first frequency domain resource set. M1 can be used to determine the sixth protection interval.

[0248] Alternatively, as shown in Figure 12(b), in case 2, the first configuration information can also be used to indicate the number M2 of frequency domain elements included in the first frequency domain resource set, the second guard interval, and the seventh guard interval. The seventh guard interval is the guard interval between the first frequency domain resource set and resources with frequencies greater than the end frequency of the first frequency domain resource set. M2 can be used to determine the seventh guard interval.

[0249] Alternatively, as shown in Figure 12(c), in case 3, the first configuration information can also be used to indicate: the number M3 of frequency domain elements included in the first frequency domain resource set, the third guard interval, and the eighth guard interval, and the number M4 of frequency domain elements included in the first frequency domain resource set, the fourth guard interval, and the ninth guard interval. The eighth guard interval is a guard interval between the first frequency domain resource set and resources with frequencies lower than the starting frequency of the first frequency domain resource set. M3 can be used to determine the eighth guard interval. The ninth guard interval is a guard interval between the first frequency domain resource set and resources with frequencies higher than the ending frequency of the first frequency domain resource set. M4 can be used to determine the ninth guard interval.

[0250] As shown in Figure 13, the time-domain signal after the superposition of the first signal and the second signal can be understood as the superposition of the time-domain signal corresponding to the first signal and the time-domain signal corresponding to the second signal. The peak power of the first signal and the peak power of the second signal occur at the same time-domain position (e.g., the same), and the peak power of the first signal and the peak power of the second signal can be superimposed to reduce the peak power of the second signal.

[0251] Based on the communication method provided in Figure 10, the first device can acquire the first signal through the first model and send the first signal and the second signal to reduce the peak-to-average power ratio of the second signal. Since the higher the peak-to-average power ratio of the sent signal, the greater the backoff power, reducing the peak-to-average power ratio can reduce the backoff power when the first device sends the second signal, improve the distortion of the second signal, and thus improve the coverage and signal-to-noise ratio of the second signal.

[0252] It should be understood that in this embodiment, the time-domain resources carrying the first signal and the time-domain resources carrying the second signal are the same. After receiving the first signal and the second signal, the second device can decode the signal received on the second frequency domain resource set to obtain the second signal. Any one of the first to sixth protection intervals can be carried in the first configuration information or agreed upon by a protocol.

[0253] In one possible implementation, if the first power threshold is indicated by the second device, the method provided in FIG10 may further include S1003 before S1001.

[0254] S1003, the second device sends the first information. Correspondingly, the first device receives the first information.

[0255] The first information is used to indicate the first power threshold.

[0256] In this way, the first device can send a first signal according to a first power threshold, which can avoid the first signal having too much energy and the second signal having too little energy, thereby improving the communication quality.

[0257] In one possible implementation, if the number of frequency domain units occupied by the first frequency domain resource set is configured by the second device, the method provided in FIG10 may also include S1004 before S1001.

[0258] S1004, the second device sends the second information. Correspondingly, the first device receives the second information.

[0259] The second information can be used to indicate the number of frequency domain units occupied by the first frequency domain resource set.

[0260] In this way, the first device can send the first signal according to the number of frequency domain units occupied by the first frequency domain resource set, avoiding the first signal occupying too much frequency domain resources, thereby improving spectrum efficiency.

[0261] In one possible implementation, in S1002, the first device sending the first signal and the second signal may include: the first device sending the first signal and the second signal at least according to the first configuration information. In this case, the method provided in FIG10 may also include S1005.

[0262] S1005, the first device obtains the first configuration information.

[0263] Optionally, if the first model is trained by the second device, step S1005 may include: the second device sending third information. Correspondingly, the first device receives the third information. The third information is used to indicate the first configuration information. In this case, the first model is trained by the second device. Thus, the first device can receive the first configuration information from other devices, such as the second device, which can reduce the computational complexity of the first device.

[0264] Alternatively, when the first model is trained by the first device, the first device obtaining the first configuration information may mean that the first device obtains the first configuration information from a memory, which may be an internal memory of the first device or an external memory.

[0265] In this way, the first device can generate a first signal based on the first configuration information, and send the first signal and the second signal, thereby achieving the effect of reducing the peak-to-average power ratio (PAPR).

[0266] In one possible implementation, where the first model is trained by the second device, the method provided in Figure 10 may also include S1006.

[0267] S1006, the second device sends the seventh message. Correspondingly, the first device receives the seventh message.

[0268] The seventh piece of information is used to indicate the first model.

[0269] It should be understood that the second and third pieces of information can be the same information. The first power threshold and the number of frequency domain units occupied by the first frequency domain resource set can also be indicated by the first configuration information. The aforementioned first, second, third, and seventh pieces of information can be sent together or separately.

[0270] In this way, the first device can obtain the first model from other devices, such as the second device, which can avoid the first device training the first model itself, thereby reducing the computational complexity of the first device.

[0271] In one possible implementation, where the first model is trained by the second device, as shown in Figure 10(a), the method provided in Figure 10 may also include S1007.

[0272] S1007, the first device sends the fourth message. Correspondingly, the second device receives the fourth message.

[0273] The fourth information is used to determine the first model and the first configuration information. The fourth information indicates one or more of the following: the capability of the first device, the reference signal received power (RSRP) of the first device, the reference signal receiving quality (RSRQ) of the first device, the signal to interference plus noise ratio (SINR) of the first device, or the channel quality indicator (CQI) of the first device.

[0274] The capabilities of the first device include: whether the first device supports AI capabilities, or the complexity of AI calculations supported by the first device. The computing power of the first terminal device, such as the amount of data it can process per unit time, is not limited.

[0275] Taking CQI and RSRP as examples, the better the CQI or the larger the RSRP, the lower the terminal's coverage requirement and the lower the bandwidth requirement for carrying useful signals.

[0276] In some examples, the first device can determine the bandwidth corresponding to the CQI based on the CQI, determine the configuration information that the bandwidth of the indicated second frequency domain resource set is the same as the bandwidth corresponding to the CQI as the first configuration information, and then determine the first type model corresponding to the first configuration information as the first model.

[0277] In this case, after receiving the fourth information, the second device can determine the first model from multiple first-type models and the first configuration information from one or more configuration information based on the fourth information.

[0278] Thus, by determining the first model and the first configuration information based on the fourth information, the first model and the first configuration information can be matched with the capabilities of the first device or the channel environment in which the first device is located, thereby improving the communication quality.

[0279] In one possible implementation, as shown in Figure 10(b), the method provided in Figure 10 may further include S1008, provided that the first model is trained by the first device.

[0280] S1008, the second device sends the fifth message. Correspondingly, the first device receives the fifth message.

[0281] The fifth piece of information is used to indicate a first configuration information set, which includes one or more first-class configuration information. This set includes at least one first-class configuration information used to generate a first model. In this case, it can be understood that the first model is determined based on at least one first-class configuration information; that is, the training data used to train the first model is data processed according to the first-class configuration information. This allows the first model to be applicable to more scenarios. Each first-class configuration information in the first configuration information set can indicate one or more of the following: a candidate frequency domain resource set for carrying useful information, the number of frequency domain units occupied by the frequency domain resource set for carrying reserved symbols, the modulation scheme of the signal, the waveform of the signal, and the positional relationship between the candidate frequency domain resource set for useful information and the frequency domain resource set for carrying reserved symbols. In the same configuration information, the implementation of the candidate frequency domain resource set used to carry useful information can refer to the relevant introduction of the second frequency domain resource set. The implementation of the number of frequency domain units occupied by the candidate frequency domain resource set used to carry useful information can refer to the number of frequency domain units occupied by the first frequency domain resource set. The positional relationship between the candidate frequency domain resource set used to carry useful information and the frequency domain resource set used to carry reserved symbols can refer to the positional relationship between the second frequency domain resource set and the second frequency domain resource set, which will not be elaborated further.

[0282] It is understandable that the configuration information in the first configuration information set may also include candidate power thresholds.

[0283] In other words, the second device can instruct the first set of configuration information. This allows the first set of configuration information to be configured according to different scenarios, thereby improving flexibility.

[0284] In another possible implementation, the first configuration information set can be pre-configured. For example, the first configuration information set can be pre-stored in a memory that the first device can read, or the first configuration information set can be agreed upon by a protocol.

[0285] In one possible implementation, when the first model is trained by the first device, as shown in Figure 10(b), the method provided in Figure 10 may also include S1009 before S1002.

[0286] S1009, the first device sends the sixth message. Correspondingly, the second device receives the sixth message.

[0287] The sixth piece of information is used to indicate the first configuration information.

[0288] In this way, when the first device determines the first model and the first configuration information, it can indicate the first configuration information to other devices, such as the second device, so that the other devices can receive the first signal and the second signal according to the first configuration information, thereby improving communication efficiency.

[0289] In one possible implementation, the method provided in FIG10 may further include S1010 before acquiring the first signal.

[0290] S1010, the second device sends the eighth message. Correspondingly, the first device receives the eighth message.

[0291] The eighth piece of information indicates that the function of transmitting signals that reduce the peak-to-average power ratio (PAPR) is enabled. "Enabled" can also be replaced with descriptions such as "enabled," "disabled," "activated," or "allowed." For example, "enabling the function of transmitting signals that reduce PAPR" can also be understood as enabling the function of transmitting signals that reduce PAPR, allowing the function of transmitting signals that reduce PAPR, or other possible expressions, which will not be elaborated further. This eighth piece of information can be carried in downlink signaling or broadcast information. The function of transmitting signals that reduce PAPR can also be understood as the function of transmitting signals used to reduce the PAPR.

[0292] In one possible implementation, the method provided in Figure 10 may also include S1011.

[0293] S1011, the second device sends the ninth message. Correspondingly, the first device receives the ninth message.

[0294] The ninth piece of information indicates that sending signals that reduce peak-to-average power ratio (PAPR), such as the function of reserving symbols, is disabled. "Disabled" can also be replaced with descriptions such as "off," "de-enabled," "deactivated," or "not allowed." For example, "disable" can also be understood as turning off the function of sending signals that reduce PAPR, disallowing the use of the function of sending signals that reduce PAPR, or other possible expressions, which will not be elaborated further.

[0295] The ninth information can be carried in downlink signaling or broadcast information.

[0296] Thus, the function of sending signals with reduced peak-to-average power ratio can be enabled or disabled depending on the actual situation.

[0297] Optionally, the second device can determine whether to send the eighth or ninth information based on the fourth information. For example, if the fourth information determines that the first device has limited coverage, the eighth information is sent; if the fourth information determines that the first device supports AI capabilities, the eighth information is sent. Alternatively, if the fourth information determines that the first device does not support AI capabilities, the ninth information is sent.

[0298] In the scheme shown in Figure 10, the signal with reduced peak-to-average power ratio can also be understood as a reserved symbol.

[0299] Optionally, if the power of the first signal is less than or equal to the second power threshold, the method provided in FIG10 may further include S1012.

[0300] S1012, the second device sends the tenth message. Correspondingly, the first device receives the tenth message.

[0301] The tenth piece of information is used to indicate the second power threshold.

[0302] In this way, interference from the first signal to other signals on the frequency domain resources occupied by the first signal can be reduced.

[0303] Optionally, if the interference generated by the first signal on the third signal in the first frequency domain resource is less than or equal to the interference threshold, the method provided in FIG10 may further include S1013.

[0304] S1013, the second device sends the eleventh message. Correspondingly, the first device receives the eleventh message.

[0305] The eleventh piece of information is used to indicate the interference threshold.

[0306] In this way, interference from the first signal to other signals on the frequency domain resources occupied by the first signal can be reduced.

[0307] In one possible implementation, a device (such as a first device or a second device) or network element (such as the aforementioned third-party network element) used to train the first model can train the model to be trained based on the first training samples, thereby obtaining the first model. The first training samples include signals carrying useful information (i.e., first training data) and signals corresponding to the symbol sequences used to reduce the useful information using PAPR. As an example, the principle for obtaining the first model can be as follows: The first training data is input into the model to be trained, and the model processes the first training data to obtain the output result corresponding to the first training data. Gradient backpropagation is performed based on the error between the output result corresponding to the first training data and the reserved symbols corresponding to the first training data until the error of the output result of the model to be trained is less than or equal to a first threshold.

[0308] In the case where the first signal is as shown in Method 1, the training data may include: the second signal, the first power threshold, and the number of frequency domain units occupied by the first frequency domain resource set.

[0309] In the case where the first signal is as shown in Method 2, the training data may include: the second signal and the number of frequency domain units occupied by the first frequency domain resource set, which are then input into the first model as input parameters of the first model.

[0310] In the case of the first signal as shown in Method 3, the training data may include: the second signal and the first power threshold.

[0311] In the case of the first signal as shown in Method 4, the training data may include: the second signal.

[0312] In the embodiments of this application, the training principle of one or more first-type models is similar to that of the first model, and will not be described in detail.

[0313] It is understood that the order in which the steps of the communication method shown in Figure 10 appear is not intended to limit the execution order of the steps. In the case of symbolic logic, different steps can be combined in different ways. For example, S1003 and S1005 can be executed in parallel, or S1003 and S1005 can be executed in one step, or in different orders, etc., which will not be elaborated further.

[0314] In another embodiment of the communication method, the first device can superimpose other signals, such as signal #1, onto the frequency domain resources used to transmit useful information, such as signal #2, thereby reducing the PAPR corresponding to the useful information. This will be described below with reference to FIG14. The communication method includes:

[0315] S1401, the first device acquires signal #1.

[0316] Signal #1 must satisfy at least one of the following conditions: it is used to reduce the peak-to-average power ratio. Alternatively, the peak-to-average power ratio of signals #1 and #2 is lower than the peak-to-average power ratio of signal #2.

[0317] For details on the implementation of signal #2, please refer to the relevant introduction of the second signal in the method provided in Figure 10, which will not be elaborated here.

[0318] Model #1 is used to generate a signal that reduces the peak-to-average power ratio. Model #1 can be an AI model. As an example, an AI model can also be called an AI network, a neural network model, or a machine learning model. Model #1 can be trained by a second device, or it can be trained by a first device. It should be understood that Model #1 can also be trained by other third-party network elements. In this case, optionally, the first device can send the information used to train Model #1 (as described in the second training data below) to the third-party network element. This allows the first device to determine the information sent to the third-party device, balancing information security and computational complexity. Alternatively, optionally, the second device can also send the information used to train Model #1 to the third-party network element. Optionally, the third-party network element can also send Model #1 to the first device. This third-party network element can be a core network element such as an AMF network element or a UPF network element, or it can be an OAM, a cloud server, or other network element, without limitation.

[0319] Signal #1 can be superimposed on signal #2 to cancel the peak power of signal #2 in the time domain, thereby reducing the peak-to-average power ratio of signal #2.

[0320] In one possible implementation, signal #1 is generated based at least on signal #2 and model #1.

[0321] Thus, by generating signal #1 through the model, the coverage requirements of the first device can be better met, and the computational complexity of the first device can be reduced.

[0322] It should be understood that signal #1 can be generated by the first device. Alternatively, when model #1 is located in a third-party network element, signal #1 can be generated by the third-party network element and then sent to the first device. If signal #1 is generated by the third-party network element and model #1 is generated by the first device, the first device can send signal #2 to the third-party network element to generate signal #1. In this way, the first device can determine the information to be sent to the third-party device, balancing information security and the computational complexity of the first device. Alternatively, if signal #1 is generated by the third-party network element and model #1 is generated by the second device, the second device can send signal #2 to the third-party network element.

[0323] In one possible implementation, the vector amplitude error of signal #1 and signal #2 can be less than or equal to a first error threshold, and the first error threshold is greater than or equal to a second error threshold.

[0324] In this embodiment, the first error threshold is a threshold for EVM related to the modulation scheme and SINR. The same modulation scheme can correspond to one or more first error thresholds. For example, with the same modulation scheme, different SINRs correspond to different EVM thresholds; in this case, the same modulation scheme corresponds to multiple first error thresholds. The second error threshold is a threshold for EVM related to the modulation scheme; for example, different modulation schemes correspond to different second error thresholds. As an example, the second error threshold can be an upper limit of EVM defined in 3GPP technical specification (TS) 38.214, such as 17.5%, 12.5%, 8%, or 3.5%. There is a correspondence between the second error threshold and the modulation scheme.

[0325] It should be understood that the second error threshold corresponding to the same modulation scheme is less than the first error threshold corresponding to the same modulation scheme.

[0326] The following examples, using different modulation schemes and SINR, illustrate the second and first error thresholds. Assuming the modulation schemes include quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM), the correspondence between the first error threshold and the modulation scheme and SINR can be any of the correspondences shown in Table 3:

[0327] Table 3

[0328] It should be understood that the correspondence shown in Table 3 above is for illustrative purposes only. In actual implementation, there may be other correspondences between the first error threshold, the modulation method, and SINR. In the embodiments of this application, the correspondence between the first error threshold, the modulation method, and SINR can also be implemented in other possible forms besides the table above, which will not be elaborated here. Furthermore, in the embodiments of this application, the correspondence between the first error threshold, the modulation method, and SINR can be based on one of the partial correspondences shown in Table 3.

[0329] As an example, the second error thresholds corresponding to the modulation schemes QPSK, 16QAM, 64QAM, and 256QAM are shown in Table 4 below.

[0330] Table 4

[0331] Combining Tables 3 and 4 above, it can be seen that when the modulation scheme is QPSK, if the SINR is 5, the first error threshold is 30%, which is greater than the second error threshold of 17.5% when the modulation scheme is QPSK. Similarly, when the modulation scheme is QPSK, if the SINR is -5, the first error threshold is 30%, which is greater than the second error threshold of 17.5% when the modulation scheme is QPSK. Similarly, when the modulation scheme is 16QAM, if the SINR is 5, the first error threshold is 25%, which is greater than the second error threshold of 12.5% ​​when the modulation scheme is 16QAM.

[0332] It should be understood that the correspondence between the first error threshold, the modulation scheme, and SINR can be agreed upon through a protocol, or it can be indicated by a second device. In this embodiment, SINR can also be replaced by signal-to-noise ratio (SNR). In this case, the implementation of the first error threshold is similar to that under SINR, and will not be described in detail. The above-mentioned first error threshold is for illustrative purposes. In actual implementation, there may be other correspondences between the first error value, the modulation scheme, and SINR.

[0333] In one possible implementation, signal #1 is generated at least based on signal #2 and model #1, and may include: signal #1 is generated based on signal #2, model #1, and a second error threshold.

[0334] As an example, signal #1 can be the output signal obtained by inputting signal #2 as an input parameter of model #1 into model #1.

[0335] It should be understood that signal #1 can also be obtained through methods other than the model. For example, the first device can achieve the same function as model #1 through different algorithms.

[0336] S1402, the first device sends signal #1 and signal #2. Correspondingly, the second device receives signal #1 and signal #2.

[0337] Signal #1 and signal #2 are both carried on the same frequency domain resource. For example, if signal #2 is carried on frequency domain units p to q, then signal #1 is also carried on frequency domain units p to q. Here, p and q are both positive integers, and p... <q。

[0338] In one possible implementation, the first device transmits signals #1 and #2, which may refer to the first device transmitting signals #1 and #2 according to one or more of the following: frequency domain resource #1 for transmitting the signals, a first modulation scheme of the signals, or a first waveform of the signals. In this case, both signals #1 and #2 are carried on frequency domain resource #1, both signals #1 and #2 are modulated by the first modulation scheme, and both signals #1 and #2 are waveforms of the first waveform.

[0339] Wherein, frequency domain resource #1 used for transmitting the signal is one of at least one candidate frequency domain resource. The first modulation scheme of the signal can be one of at least one candidate modulation scheme, and each of the at least one candidate modulation scheme can be a modulation scheme specified in the 3GPP protocol. As an example, at least one candidate modulation scheme can include one or more of the following modulation schemes: π / 2-BPSK, QPSK, 16QAM, 64QAM, or 256QAM. For example, if at least one candidate modulation scheme includes π / 2-BPSK, QPSK, and 16QAM, then the first modulation scheme can be π / 2-BPSK, QPSK, or 16QAM.

[0340] The first waveform of the signal can be one of at least one candidate waveform. For example, if at least one candidate waveform includes DFT-s-OFDM and OFDM waveforms, then the first waveform can be either a DFT-s-OFDM waveform or an OFDM waveform.

[0341] It should be understood that one or more of the frequency domain resources #1 used for transmitting signals, the first modulation scheme of the signal, or the first waveform of the signal can be carried in the configuration information #1. This configuration information #1 is used to transmit signals #1 and #2. Thus, the first device can generate signal #1 according to the configuration information #1 and transmit signals #1 and #2, thereby achieving the effect of reducing PAPR.

[0342] The modulation methods and waveforms involved in the embodiments of this application are only examples. In actual implementation, there may be other modulation methods and waveforms, which will not be elaborated here.

[0343] The EVM of signals #1 and #2 (i.e., the EVM of the signal after superimposed from signals #1 and #2) is related to the waveform of the signal (used for transmission), the modulation scheme, and the bandwidth of the frequency domain resources occupied by signal #1. For example, in one possible implementation, the EVM of signals #1 and #2, the waveform used for transmission, the modulation scheme, and the bandwidth of the frequency domain resources occupied by the signal can satisfy any of the correspondences in Table 5 below.

[0344] Table 5

[0345] It should be understood that the correspondence between the waveforms, modulation methods, and EVMs of signals #1 and #2 shown in Table 5 above is for illustrative purposes only. In actual implementation, other correspondences may exist between the waveforms, modulation methods, and EVMs of signals #1 and #2. In the embodiments of this application, the correspondence between the waveforms, modulation methods, and EVMs of signals #1 and #2 can also be implemented in other possible forms besides the table, which will not be elaborated here.

[0346] In the constellation modulation stage, signal #2 is constellation modulated, and then signal #1 is superimposed onto the constellation point of signal #2. The positional relationship between the constellation point of the superimposed signal and the constellation point of signal #2 after constellation modulation is shown in Figure 15. The signal obtained by superimposing signal #1 and signal #2 has a phase and / or amplitude offset relative to signal #2. In this case, as shown in Figure 16, the time-domain signal obtained by superimposing signal #1 and signal #2 can be understood as the superposition of the time-domain signal corresponding to signal #1 and the time-domain signal corresponding to signal #2. The peak power of signal #1 and the peak power of signal #2 occur at the same time-domain position (e.g., the same), and the superposition of the peak power of signal #1 and the peak power of signal #2 reduces the peak power of signal #2.

[0347] Based on the communication method provided in Figure 14, the first device can acquire signal #1 through model #1 and send signal #1 and signal #2, so that signal #1 and signal #2 can be superimposed on each other to reduce the peak-to-average power ratio of the transmitted signal #2. Since the higher the peak-to-average power ratio of the transmitted signal, the greater the backoff power, reducing the peak-to-average power ratio can reduce the backoff power when the first device sends signal #2, improve the distortion of signal #2, and thus improve the coverage and signal-to-noise ratio of signal #2.

[0348] It should be understood that in the embodiments of this application, the time domain resources of the carrying signal #1 and the time domain resources of the carrying signal #2 are the same.

[0349] In one possible implementation, the method provided in FIG14 may further include S1403, provided that the first error threshold is indicated by the second device.

[0350] S1403, the second device sends information #1. Correspondingly, the first device receives information #1.

[0351] Information #1 is used to indicate the first error threshold.

[0352] In this way, the first device can obtain the first error threshold from other devices, such as the second device, which can reduce the computational complexity of the first device.

[0353] Optionally, information #1 can indicate the first error threshold directly. For example, information #1 includes the first error threshold. Alternatively, information #1 can indicate the first error threshold indirectly. For example, information #1 can indicate raising or lowering the current error threshold, where the first error threshold is the error threshold after raising or lowering the current error threshold. Alternatively, information #1 can indicate the signal quality on the channel used to receive signal #2, where there is a correspondence between the signal quality on the channel for receiving signal #2 and the first error threshold.

[0354] In one possible implementation, if one or more of the frequency domain resource #1 used for transmitting the signal, the first modulation scheme of the signal, or the first waveform of the signal are carried in the configuration information #1, the method provided in FIG14 may further include S1404 before S1001.

[0355] S1404, First device obtains configuration information #1.

[0356] It should be understood that configuration information #1 may also include: a second error threshold.

[0357] Optionally, if model #1 is trained by the second device, as shown in Figure 14(a), the method provided in Figure 14 may also include S1405 before S1404.

[0358] S1405, the second device sends information #2. Correspondingly, the first device receives information #2.

[0359] Among them, information #2 is used to indicate configuration information #1.

[0360] The above information #1 and information #2 can be sent together or separately.

[0361] In this way, the first device can receive configuration information #1 from other devices, such as the second device, which can reduce the computational complexity of the first device.

[0362] Optionally, if model #1 is trained by the second device, as shown in Figure 14(a), the method provided in Figure 14 may also include S1406.

[0363] S1406, the second device sends information #6. Correspondingly, the first device receives information #6.

[0364] Information #6 is used to indicate model #1.

[0365] In this way, the first device can obtain model #1 from other devices, such as the second device, which can avoid the first device training model #1 on its own, thereby reducing the computational complexity of the first device.

[0366] Optionally, if model #1 is trained by the second device, as shown in Figure 14(a), the method provided in Figure 14 may also include S1407 before S1405 and S1406.

[0367] S1407, the second device receives information #3. Correspondingly, the first device sends information #3.

[0368] Information #3 is used to determine model #1 and configuration information #1. Information #3 includes one or more of the following: the capabilities of the first device, the RSRP of the first device, the RSRQ of the first device, the SINR of the first device, or the CQI of the first device.

[0369] Taking CQI and RSRP as examples, the better the CQI, the larger the second error threshold. This can be understood as a correspondence between CQI and the second error threshold. In this case, as an example, the first device can determine the error threshold corresponding to CQI based on CQI, and determine the second type of configuration information indicating this error threshold as configuration information #1.

[0370] Alternatively, a larger RSRP indicates a lower coverage requirement, resulting in a smaller second error threshold. This can be interpreted as a correspondence between RSRP and the second error threshold. In this case, as an example, the first device can determine the error threshold corresponding to RSRP based on RSRP and define the second type of configuration information indicating this error threshold as configuration information #1.

[0371] In this case, after receiving information #3, the second device can determine model #1 from multiple second-type models based on information #3, and determine configuration information #1 from one or more second-type configuration information corresponding to model #1.

[0372] Thus, by determining model #1 and configuration information #1 based on information #3, both model #1 and configuration information #1 can be matched with the capabilities of the first device or the channel environment in which the first device is located, thereby improving communication quality.

[0373] In one possible implementation, model #1 is generated based on at least one second-class configuration information, model #1 corresponds to at least one second-class configuration information, and the at least one second-class configuration information includes configuration information #1.

[0374] In one possible implementation, where model #1 is trained by the first device, as shown in Figure 14(b), the method provided in Figure 14 may also include S1408.

[0375] S1408, the second device sends information #4. Correspondingly, the first device receives information #4.

[0376] Information #4 indicates configuration information set #1, which includes one or more second-type configuration information. The one or more second-type configuration information includes at least one second-type configuration information used to generate model #1; that is, at least one second-type configuration information in configuration information set #1 is used to generate model #1. In this case, model #1 is determined based on at least one second-type configuration information, which can be understood as the training data used to train model #1 being data processed according to the second-type configuration information.

[0377] Each type of configuration information in configuration information set #1 may include a type of error threshold, frequency domain resources for transmitting signals, modulation method of signals, or waveform of signals. For specific implementation details, please refer to the relevant introductions of the second error threshold, frequency domain resources for transmitting signals #1, first modulation method of signals, or first waveform of signals, which will not be elaborated here.

[0378] In other words, the configuration information set #1 can be specified by the second device. This allows the configuration information set #1 to be configured according to different scenarios, thereby improving flexibility.

[0379] In one possible implementation, where model #1 is trained by the first device, as shown in Figure 14(b), the method provided in Figure 14 may also include S1409.

[0380] S1409, the first device sends information #5. Correspondingly, the second device receives information #5.

[0381] Information #5 is used to indicate configuration information #1. Configuration information #1 is used to send signal #1 and signal #2.

[0382] In this way, when the first device determines the model #1 and the configuration information #1, it can indicate the configuration information #1 to other devices, such as the second device, so that the other devices can receive the signal #1 and the signal #2 according to the configuration information #1, thereby improving communication efficiency.

[0383] In one possible implementation, the method provided in Figure 14 may also include S1410 before S1401.

[0384] S1410, the second device sends information #7. Correspondingly, the first device receives information #7.

[0385] Information #7 indicates that the function of sending signals that reduce the peak-to-average power ratio (PAPR), such as disturbances, is enabled. "Enabled" can also be replaced with descriptions such as "enabled," "disabled," "activated," or "allowed." For example, "enabling the function of sending signals that reduce PAPR" can also be understood as enabling the function of sending signals that reduce PAPR, or other possible expressions, which will not be elaborated further. "Sending signals that reduce PAPR" can also be understood as sending signals used to reduce PAPR.

[0386] For the implementation of information #7, please refer to the relevant introduction of the eighth information in the method provided in Figure 10. For the implementation of S1410, please refer to the relevant introduction of S1010 in the method provided in Figure 10. It will not be elaborated here.

[0387] In one possible implementation, the method provided in Figure 14 may also include S1411.

[0388] S1411, the second device sends information #8. Correspondingly, the first device receives information #8. Information #8 indicates that the function of transmitting signals that reduce the peak-to-average power ratio is disabled.

[0389] "Disable" can also be replaced with descriptions such as "off," "de-enable," "deactivate," or "not allowed to use." For example, "disable" the function of a signal that reduces peak-to-average power ratio can also be understood as turning off the function of a signal that reduces peak-to-average power ratio, disallowing the use of sending signals that reduce peak-to-average power ratio, or other possible expressions, which will not be elaborated further.

[0390] For the implementation of information #8, please refer to the relevant introduction of the ninth information in the method provided in Figure 10. For the implementation of S1411, please refer to the relevant introduction of S1011 in the method provided in Figure 10. It will not be elaborated here.

[0391] In this way, the function of sending signals with reduced peak-to-average power ratio can be enabled or disabled, depending on the capabilities or coverage of the terminal device.

[0392] Optionally, the second device can determine whether to send information #7 or information #8 based on information #3. For example, if information #3 indicates that the first device has limited coverage, information #7 is sent; if information #3 indicates that the first device supports AI capabilities, information #7 is sent. Alternatively, if information #3 indicates that the first device does not support AI capabilities, information #8 is sent.

[0393] In the scheme shown in Figure 14, the signal that reduces the peak-to-average power ratio can also be understood as a disturbance or a disturbance sign.

[0394] In one possible implementation, the device (such as the first device or the second device) or network element (such as the aforementioned third-party network element) used to train model #1 can train the model to be trained based on the second training samples, thereby obtaining model #1. The second training samples include signals carrying useful information (i.e., second training data) and signals used to reduce the PAPR of the useful information. As an example, the principle of obtaining model #1 can be as follows: the second training data is input into the model to be trained, and the model to be trained processes the second training data to obtain the output result corresponding to the second training data. Gradient backpropagation is performed based on the error between the output result corresponding to the second training data and the second training data until the error of the output result of the model to be trained is less than or equal to a second threshold. It is understood that the order of the steps in the communication method provided in Figure 14 above is not intended to limit the execution order of the steps. In the case of symbolic logic, different combinations of execution orders of steps can be made, which will not be elaborated upon here.

[0395] In this embodiment of the application, the training principle of one or more second-type models is similar to that of model #1, and will not be described in detail.

[0396] It should be understood that the communication methods provided in Figure 10 and Figure 14 above can be used individually or in combination.

[0397] It is understandable that when the communication method provided in either Figure 10 or Figure 14 is executed by the chip, the sending action / function can be understood as output information, and the receiving action / function can be understood as input information.

[0398] The communication method provided by the embodiments of this application has been described in detail above with reference to Figures 10-16. The communication apparatus used to perform the communication method provided by the embodiments of this application is described in detail below with reference to Figures 17-18.

[0399] As shown in Figure 17, the communication device 1700 includes a processing module 1701 and a transceiver module 1702. For ease of explanation, Figure 17 only shows the main components of the communication device.

[0400] In some embodiments, the communication device 1700 can be used to implement the functions of the first device. The processing module 1701 in the communication device can be used to generate the signal transmitted by the first device in the method provided in any of Figures 10 or 14, and the transceiver module 1702 can be used to execute the receiving and transmitting steps of the first device in the method provided in any of Figures 10 or 14.

[0401] In other embodiments, the communication device 1700 can be used to implement the functions of the second device. The processing module 1701 in the communication device can be used to generate the signal transmitted by the second device in the method provided in any of Figures 10 or 14, and the transceiver module 1702 can be used to execute the receiving and transmitting steps of the second device in the method provided in any of Figures 10 or 14.

[0402] Optionally, the transceiver module 1702 may include a receiving module and a transmitting module (not shown in FIG17). The transceiver module is used to implement the transmitting and receiving functions of the communication device 1700.

[0403] Optionally, the communication device 1700 may further include a storage module (not shown in FIG. 17) that stores programs or instructions. When the processing module 1701 executes the program or instructions, the communication device 1700 can perform the functions of the first or second device in the auxiliary channel measurement method shown in either FIG. 10 or FIG. 14.

[0404] It should be understood that the processing module 1701 involved in the communication device 1700 can be implemented by a processor or processor-related circuit components, and can be a processor or processing unit; the transceiver module 1702 can be implemented by a transceiver or transceiver-related circuit components, and can be a transceiver or transceiver unit.

[0405] It should be noted that when the communication device 1700 is used to perform the function of the first device in the auxiliary channel measurement method shown in either Figure 10 or Figure 14, the communication device 1700 may be a terminal device, a communication module, a circuit or chip responsible for communication functions, a chip system, or other components or assemblies. The communication module, or the circuit or chip responsible for communication functions, or the chip system, or other components or assemblies may be disposed in the terminal device. When the communication device 1700 is used to perform the function of the second device in the auxiliary channel measurement method shown in either Figure 10 or Figure 14, the communication device 1700 may be a terminal device or access network device, a communication module, a circuit or chip responsible for communication functions, a chip system, or other components or assemblies. The communication module, or the circuit or chip responsible for communication functions, or the chip system, or other components or assemblies may be disposed in the terminal device or access network device.

[0406] Furthermore, the technical effects of the communication device 1700 can be referred to the technical effects of the auxiliary channel measurement method shown in either Figure 10 or Figure 14, which will not be repeated here.

[0407] For example, Figure 18 is a second schematic diagram of the structure of a communication device provided in an embodiment of this application. This communication device can be a terminal device or an access network device, or it can be a chip (system) or other component or assembly that can be disposed in a terminal device or access network device. As shown in Figure 18, the communication device 1800 may include a processor 1801. Optionally, the communication device 1800 may also include a memory 1802 and / or a transceiver 1803. The processor 1801 is coupled to the memory 1802 and the transceiver 1803, for example, they can be connected via a communication bus.

[0408] The following is a detailed description of each component of the communication device 1800, with reference to Figure 18:

[0409] The processor 1801 is the control center of the communication device 1800. It can be a single processor or a collective term for multiple processing elements. For example, the processor 1801 can be one or more central processing units (CPUs), application-specific integrated circuits (ASICs), or one or more integrated circuits configured to implement the embodiments of this application, such as one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs).

[0410] Optionally, the processor 1801 can perform various functions of the communication device 1800 by running or executing software programs stored in the memory 1802 and calling data stored in the memory 1802.

[0411] In a specific implementation, as one example, processor 1801 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG18.

[0412] In a specific implementation, as one embodiment, the communication device 1800 may also include multiple processors, such as processors 1801 and 1804 shown in FIG. 18. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). Here, a processor may refer to one or more devices, circuits, and / or processing cores used for processing data (e.g., computer program instructions).

[0413] The memory 1802 is used to store the software program that executes the solution of this application, and is controlled by the processor 1801 to execute it. The specific implementation method can be referred to the above method embodiment, and will not be repeated here.

[0414] Optionally, the memory 1802 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory 1802 may be integrated with the processor 1801 or may exist independently and be coupled to the processor 1801 through the interface circuit of the communication device 1800 (not shown in FIG. 18). This application embodiment does not specifically limit this.

[0415] Transceiver 1803 is used for communication with other communication devices. For example, if communication device 1800 is a terminal device, transceiver 1803 can be used to communicate with an access network device or with another terminal device. As another example, if communication device 1800 is an access network device, transceiver 1803 can be used to communicate with a terminal device or with another second device.

[0416] Optionally, transceiver 1803 may include a receiver and a transmitter (not shown separately in Figure 18). The receiver is used to implement the receiving function, and the transmitter is used to implement the transmitting function.

[0417] Optionally, the transceiver 1803 can be integrated with the processor 1801 or exist independently and be coupled to the processor 1801 through the interface circuit of the communication device 1800 (not shown in FIG18). This application embodiment does not specifically limit this.

[0418] It should be noted that the structure of the communication device 1800 shown in Figure 18 does not constitute a limitation on the communication device. The actual communication device may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0419] Furthermore, the technical effects of the communication device 1800 can be referred to the technical effects of the channel state information reporting method described in the above method embodiments, and will not be repeated here.

[0420] It should be understood that the processor in the embodiments of this application can be a CPU, but it can also be other general-purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc.

[0421] It should also be understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory can be ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), EEPROM, or flash memory. Volatile memory can be RAM, which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, 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).

[0422] The above embodiments can be implemented, in whole or in part, by software, hardware (such as circuits), firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., infrared, wireless, microwave, etc.) 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 includes one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0423] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0424] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0425] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0426] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0427] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0428] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0429] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0430] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0431] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0432] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method characterized by comprising: The method applied to a first device comprises: obtaining a first signal; the first signal is generated at least according to a second signal and a first model, and the first signal at least satisfies one of the following conditions: for reducing a peak-to-average power ratio; or, a peak-to-average power ratio of the first signal and the second signal is less than a peak-to-average power ratio of the second signal; transmitting the first signal and the second signal.

2. The method of claim 1, wherein, a power of the first signal is less than or equal to a first power threshold; and / or, a number of frequency domain units occupied by the first signal is less than or equal to a number of frequency domain units occupied by a first frequency domain resource set, and the first frequency domain resource set is used to carry the first signal.

3. The method of claim 2, wherein, The method further comprises: receiving first information, the first information being used to indicate the first power threshold; and / or, receiving second information; the second information can be used to indicate the number of frequency domain units occupied by the first frequency domain resource set.

4. The method according to any one of claims 1 to 3, characterized in that, The first signal is carried on a first frequency domain resource set, and the second signal is carried on a second frequency domain resource set, and resources of the first frequency domain resource set are orthogonal to resources of the second frequency domain resource set.

5. The method of claim 4, wherein, The method further comprises: obtaining first configuration information; the first configuration information is used to transmit the first signal and the second signal, and the first configuration information is used to indicate one or more of the following information: the second frequency domain resource set, a modulation mode of the second signal, a waveform of the second signal, the number of frequency domain units occupied by the first frequency domain resource set, or a positional relationship between the first frequency domain resource set and the second frequency domain resource set.

6. The method of claim 5, wherein, The number of frequency domain units occupied by the first frequency domain resource set is positively correlated with the number of frequency domain units occupied by the second frequency domain resource set; or, the number of frequency domain units occupied by the first frequency domain resource set is related to at least one of the following: a multipath between the first device and a second device, a hardware transmission capability of the first device, and a distance between the first device and the second device.

7. The method according to claim 5 or 6, characterized in that, The positional relationship between the first frequency domain resource set and the second frequency domain resource set comprises: a frequency point of a frequency domain unit occupied by the first frequency domain resource set is less than a frequency point of a frequency domain unit occupied by the second frequency domain resource set; or, a frequency point of a frequency domain unit occupied by the first frequency domain resource set is greater than a frequency point of a frequency domain unit occupied by the second frequency domain resource set; or, a frequency point of a frequency domain unit occupied by a first frequency domain resource in the first frequency domain resource set is less than a frequency point of a frequency domain unit occupied by the second frequency domain resource set, and a frequency point of a frequency domain unit occupied by a second frequency domain resource in the first frequency domain resource set is greater than a frequency point of a frequency domain unit occupied by the second frequency domain resource set; wherein the second frequency domain resource is a frequency domain resource in the first frequency domain resource set other than the first frequency domain resource; or, resources in the second frequency domain resource set are distributed in a comb shape with resources in the first frequency domain resource set.

8. The method according to any one of claims 5-7, characterized in that, The obtaining of the first configuration information comprises: receiving third information; wherein the third information is used to indicate the first configuration information.

9. The method of claim 8, wherein, The method further comprises: transmitting fourth information, the fourth information being used for determining the first model and the first configuration information, the fourth information indicating one or more of: a capability of the first device, a reference signal received power (RSRP) of the first device, a reference signal received quality (RSRQ) of the first device, a signal to interference and noise ratio (SINR) of the first device, or a channel quality information (CQI) of the first device.

10. The method of claim 6, wherein, The first model is generated according to at least one first-type configuration information, the first model corresponding to the at least one first-type configuration information, and the at least one first-type configuration information including the first configuration information.

11. The method of claim 10, wherein, The method further includes: receiving fifth information, the fifth information being used for indicating the first configuration information set, the first configuration information set including at least one first-type configuration information; and / or, transmitting sixth information, the sixth information being used for indicating the first configuration information.

12. The method according to any one of claims 1-11, characterized in that, The method further includes: receiving seventh information, the seventh information being used for indicating the first model.

13. The method of any of claims 1-10, wherein: an average power of the first signal is less than or equal to a second power threshold, or an interference caused by the first signal to a third signal on the first set of frequency domain resources is less than or equal to an interference threshold, the first frequency domain resource being a frequency domain resource carrying the first signal.

14. A communication method, comprising: The method is applied to a second device, and the method includes: transmitting seventh information or fifth information, the seventh information being used for indicating a first model, the fifth information being used for indicating a first configuration information set, at least one first-type configuration information in the first configuration information set being used for generating the first model; receiving a first signal and a second signal, the first signal being generated at least according to the second signal and the first model, the first signal satisfying at least one of the following conditions: for reducing a peak-to-average power ratio (PAPR); or a PAPR of the first signal and the second signal is less than a PAPR of the second signal.

15. A method of communication, comprising: The method is applied to a first device, and the method includes: obtaining a signal #1, the signal #1 satisfying at least one of the following conditions: for reducing a PAPR; or a PAPR of the signal #1 and a signal #2 is less than a PAPR of the signal #2; transmitting the signal #1 and the signal #2, the signal #1 and the signal #2 being carried on a same frequency domain resource.

16. The method of claim 15, wherein, The signal #1 is generated at least according to the signal #2 and a model #1.

17. The method of claim 16, wherein, A vector amplitude error of the signal #1 and the signal #2 is less than or equal to a first error threshold, the first error threshold being greater than or equal to a second error threshold.

18. The method of claim 17, wherein, The method further includes: receiving information #1, the information #1 being used for indicating the first error threshold.

19. The method according to any one of claims 15-18, characterized by, The method further includes: obtaining configuration information #1, the configuration information #1 being used for transmitting the signal #1 and the signal #2, the configuration information #1 being used for indicating one or more of: a modulation mode of a signal, or a waveform of a signal.

20. The method of claim 19, wherein, The method further includes: receiving information #2, the information #2 being used for indicating the configuration information #1.

21. The method of claim 20, wherein, The method further comprises: sending information #3; the information #3 is used to determine the model #1 and the configuration information #1; wherein the information #3 comprises one or more of the following: the capability of the first device, the reference signal received power (RSRP) of the first device, the reference signal received quality (RSRQ) of the first device, the signal to interference and noise ratio (SINR) of the first device, or the channel quality information (CQI) of the first device.

22. The method of claim 19, wherein, The model #1 is generated according to at least one configuration information, the model #1 corresponds to the at least one second type of configuration information, and the at least one second type of configuration information includes the configuration information #1.

23. The method of claim 22, wherein, The method further comprises: receiving information #4; the information #4 is used to indicate a configuration information set #1, the configuration information set #1 includes the at least one second type of configuration information; and / or, sending information #5, the information #5 is used to indicate the configuration information #1.

24. The method of any one of claims 15-23, wherein, The method further comprises: receiving information #6, the information #6 is used to indicate the model #1.

25. A method of communication, comprising: The method is applied to a second device, and the method comprises: sending information #6 or information #4; the information #6 is used to indicate a model #1, and the information #4 is used to indicate a configuration information set #1, at least one second type of configuration information in the configuration information set #1 is used to generate the model #1; receiving a signal #1 and a signal #2, the signal #1 is determined according to the signal #2 and the model #1, and the signal #1 at least meets one of the following conditions: for reducing the peak to average power ratio; or, The peak to average power ratio of the signal #1 and the signal #2 is lower than the peak to average power ratio of the signal #2.

26. A communications device, characterized by The communication device comprises a module or unit for performing the communication method of any one of claims 1-25.

27. A communications device, characterized by comprises: a processor and a memory; the memory is used to store computer instructions, when the processor executes the instructions, to make the communication device perform the communication method of any one of claims 1-25.

28. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises a computer program or instructions, when the computer program or instructions run on a computer, to make the computer perform the communication method of any one of claims 1-25.

29. A computer program product, characterised in that, The computer program product comprises: a computer program or instructions, when the computer program or instructions run on a computer, to make the computer perform the communication method of any one of claims 1-25.

30. A chip system, characterized by comprises: at least one processor and a communication interface, the at least one processor is coupled with the memory through the communication interface, when the at least one processor executes the computer program or instructions in the memory, to make the method of any one of claims 1-25 be performed.

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