Method for sending and receiving capability information, terminal, network device and storage medium

Abstract

The invention relates to a method for sending and receiving capability information, a terminal, network equipment and a storage medium. The method comprises: sending capability information to a network device, the capability information being used for indicating that the terminal supports a peak-to-average power ratio (PAPR) of an adjustment signal. In the method disclosed by the invention, the terminal can report the adjustable PAPR to the network equipment by sending the capability information, so that the network equipment can perform adaptive scheduling according to the capability of the terminal, such as indicating the terminal to reduce the PAPR, thereby improving the problems of distortion or low PA efficiency and the like caused by too high PAPR.

Description

Methods, terminals, network devices, and storage media for sending and receiving capability information. Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, terminal, network device, and storage medium for transmitting and receiving capability information. Background Technology

[0002] With the development of mobile communication technology, various high-spectral-efficiency waveforms are being applied. For example, in 5G communication technology, Discrete Fourier Transform spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveforms or Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveforms can be used. In 6G communication technology, even more high-spectral-efficiency waveforms will likely be used to better cope with the complex scenarios of 6G.

[0003] Summary of the Invention

[0004] In scenarios where high-spectral-efficiency waveforms are used, problems such as distortion at the transmitting end or low efficiency of the power amplifier (PA) may occur.

[0005] This disclosure provides a method, terminal, network device, and storage medium for sending and receiving capability information.

[0006] In a first aspect, embodiments of this disclosure provide a method for transmitting capability information, executed by a terminal, the method comprising:

[0007] Send capability information to network devices, the capability information being used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

[0008] Secondly, embodiments of this disclosure provide a method for receiving capability information, performed by a network device, the method comprising:

[0009] The terminal receives capability information, which indicates that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

[0010] Thirdly, embodiments of this disclosure provide a terminal, including:

[0011] The transceiver module is used to send capability information to the network device, the capability information being used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

[0012] Fourthly, embodiments of this disclosure provide a network device, including:

[0013] The transceiver module is used to receive capability information sent by the terminal, the capability information being used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

[0014] Fifthly, embodiments of this disclosure provide a terminal, including:

[0015] One or more processors;

[0016] The terminal is configured to implement the method described in the first aspect.

[0017] Sixthly, embodiments of this disclosure provide a network device, including:

[0018] One or more processors;

[0019] The network device is configured to implement the method described in the second aspect.

[0020] In a seventh aspect, embodiments of this disclosure provide a communication system, including a terminal and a network device, wherein,

[0021] The terminal is configured to implement the method described in the first aspect;

[0022] The network device is configured to use the method described in the second aspect.

[0023] Eighthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0024] When the instructions are executed on the communication device, the communication device causes the communication device to perform the method as described in the first aspect or the second aspect.

[0025] Ninthly, embodiments of this disclosure provide a program product, wherein,

[0026] When the program product is executed by a communication device, the communication device performs the method described in the first aspect or the second aspect.

[0027] In the embodiments of this disclosure, the terminal can report to the network device that it can adjust the PAPR by sending capability information. The network device can then perform adaptive scheduling based on the terminal's capabilities, such as instructing the terminal to reduce the PAPR, thereby improving problems such as distortion or low PA efficiency caused by excessively high PAPR. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0029] Figure 1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0030] Figures 2a and 2b are exemplary interactive schematic diagrams of a method provided according to an embodiment of the present disclosure;

[0031] Figures 3a to 3c are exemplary flowcharts of a method provided according to embodiments of the present disclosure;

[0032] Figures 4a to 4c are exemplary flowcharts of a method provided according to embodiments of the present disclosure;

[0033] Figure 5a is a schematic diagram of the structure of a device according to an embodiment of the present disclosure;

[0034] Figure 5b is a schematic diagram of the structure of a device according to an embodiment of the present disclosure;

[0035] Figure 6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0036] Figure 6b is a schematic diagram of a communication device according to an embodiment of the present disclosure. Detailed Implementation

[0037] This disclosure provides a method, terminal, network device, and storage medium for sending and receiving capability information.

[0038] In a first aspect, embodiments of this disclosure provide a method for transmitting capability information, executed by a terminal, the method comprising:

[0039] Send capability information to network devices. The capability information is used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

[0040] In the above embodiments, the terminal can report to the network device that it can adjust the PAPR by sending capability information. The network device can then perform adaptive scheduling based on the terminal's capabilities, such as instructing the terminal to reduce the PAPR, thereby improving problems such as distortion or low PA efficiency caused by excessively high PAPR.

[0041] In conjunction with the embodiments of the first aspect, in some embodiments, the capability information includes a first information field for indicating at least one adjustment value, wherein the adjustment value represents a value by which the terminal is able to reduce PAPR.

[0042] In the above embodiments, the terminal can report the value that can reduce PAPR through capability information, so that the network device can perform adaptive scheduling based on the terminal's capability.

[0043] In conjunction with the embodiments of the first aspect, in some embodiments, the capability information includes a second information field, which includes at least one of the following:

[0044] An indicator bit used to indicate whether the terminal supports signal waveform shaping;

[0045] The terminal supports parameters for waveform shaping.

[0046] In the above embodiments, the terminal can report whether it supports waveform shaping and / or the corresponding parameter information through capability information, so that the network device can perform scheduling based on the relevant capabilities of the terminal.

[0047] In conjunction with the embodiments of the first aspect, in some embodiments, the parameter information includes waveform index and / or shaping factor.

[0048] In the above embodiments, the terminal can report the supported waveform index or shaping factor through capability information, so that the network device can reasonably give waveform adjustment instructions based on the terminal's capabilities.

[0049] In conjunction with the embodiments of the first aspect, in some embodiments, the capability information includes a third information field, which includes at least one of the following:

[0050] An indicator bit used to indicate whether the terminal supports signal limiting adjustment;

[0051] The threshold value supported by the terminal indicates whether the PAPR after the limit adjustment can be less than or equal to the threshold value.

[0052] In the above embodiments, the terminal can report the supported limiting adjustment information through capability information, so that the network device can reasonably give limiting adjustment instructions based on the terminal's capabilities.

[0053] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes: sending a reference signal to a network device, the reference signal being used to determine channel state information of the uplink channel.

[0054] In the above embodiments, the terminal sends a reference signal to provide the network device with the channel state information of the uplink channel, so that the network device can schedule the terminal to perform PAPR adjustment at an appropriate time to ensure communication efficiency.

[0055] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes: receiving configuration information sent by a network device, the configuration information including time-domain resources and / or frequency-domain resources of a reference signal.

[0056] In the above embodiments, the terminal can send a reference signal based on the time and frequency resources configured by the network device so that the network device can obtain the channel state information of the uplink channel.

[0057] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes: receiving notification information sent by a network device, the notification information being used to instruct a terminal to send a reference signal on predefined time-domain resources and / or frequency-domain resources.

[0058] In the above embodiments, the terminal can send a reference signal based on the notification from the network device and predefined time and frequency resources, so that the network device can obtain the channel state information of the uplink channel.

[0059] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes: receiving indication information sent by a network device, the indication information being used to instruct the terminal to adjust PAPR during uplink transmission.

[0060] In the above embodiments, after reporting capability information, the terminal can adjust PAPR as necessary based on the indication information of the network device to improve the problems of distortion or low PA efficiency.

[0061] In conjunction with the embodiments of the first aspect, in some embodiments, the indication information includes at least one of the following:

[0062] The PAPR adjustment value indicated by the network device;

[0063] The waveform indicated by the network device is shaped to correspond to the waveform.

[0064] The shaping factor corresponding to the waveform shaping indicated by the network device;

[0065] The threshold value corresponding to the amplitude limit indicated by the network device.

[0066] In the above embodiments, the terminal can determine the relevant parameters of PAPR to be adjusted based on the content of the instruction information, thereby improving communication performance.

[0067] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes: after adjusting PAPR according to the instruction information, sending an uplink signal to the network device.

[0068] In the above embodiments, the terminal performs uplink transmission based on the adjusted PAPR, thereby reducing the PAPR during the uplink transmission process, reducing distortion problems during transmission, and enabling the terminal to achieve a balance between energy saving and linearity, thus improving communication efficiency.

[0069] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0070] Determine whether adjusting the PAPR is supported;

[0071] The capability information is sent when the terminal supports adjusting the PAPR, and / or the terminal adjusts the PAPR when it supports adjusting the PAPR.

[0072] Secondly, embodiments of this disclosure provide a method for receiving capability information, performed by a network device, the method comprising:

[0073] The terminal receives capability information, which is used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

[0074] In conjunction with embodiments of the second aspect, in some embodiments, the capability information includes a first information field for indicating at least one adjustment value, wherein the adjustment value represents the amount by which the terminal can adjust the PAPR reduction.

[0075] In conjunction with embodiments of the second aspect, in some embodiments, the capability information includes a second information field, which includes at least one of the following:

[0076] An indicator bit used to indicate whether the terminal supports signal waveform shaping;

[0077] The terminal supports parameters for waveform shaping.

[0078] In conjunction with embodiments of the second aspect, in some embodiments, the parameter information includes: waveform index, and / or shaping factor.

[0079] In conjunction with embodiments of the second aspect, in some embodiments, the capability information includes a third information field, which includes at least one of the following:

[0080] An indicator bit used to indicate whether the terminal supports signal limiting adjustment;

[0081] The threshold value supported by the terminal indicates whether the PAPR after the limit adjustment can be less than or equal to the threshold value.

[0082] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0083] The reference signal sent by the receiving terminal is used by the network device to determine the channel state information of the uplink channel.

[0084] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0085] Send configuration information to the terminal, which includes the time-domain and / or frequency-domain resources of the reference signal.

[0086] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0087] Send a notification message to the terminal, which instructs the terminal to send a reference signal on predefined time-domain and / or frequency-domain resources.

[0088] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0089] Send an instruction message to the terminal, which instructs the terminal to adjust the PAPR during uplink transmission.

[0090] In conjunction with embodiments of the second aspect, in some embodiments, the indication information includes at least one of the following:

[0091] The PAPR adjustment value indicated by the network device;

[0092] The waveform indicated by the network device is shaped to correspond to the waveform.

[0093] The shaping factor corresponding to the waveform shaping indicated by the network device;

[0094] The threshold value corresponding to the amplitude limit indicated by the network device.

[0095] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0096] The uplink signal sent by the receiving terminal after adjusting PAPR based on the indication information.

[0097] Thirdly, embodiments of this disclosure provide a terminal, including:

[0098] The transceiver module is used to send capability information to the network device, the capability information being used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

[0099] Fourthly, embodiments of this disclosure provide a network device, including:

[0100] The transceiver module is used to receive capability information sent by the terminal, the capability information being used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

[0101] Fifthly, embodiments of this disclosure provide a terminal, including:

[0102] One or more processors;

[0103] The terminal is configured to implement the method described in the first aspect.

[0104] Sixthly, embodiments of this disclosure provide a network device, including:

[0105] One or more processors;

[0106] The network device is configured to implement the method described in the second aspect.

[0107] In a seventh aspect, embodiments of this disclosure provide a communication system, including a terminal and a network device, wherein,

[0108] The terminal is configured to implement the method described in the first aspect;

[0109] The network device is configured to use the method described in the second aspect.

[0110] Eighthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0111] When the instructions are executed on the communication device, the communication device causes the communication device to perform the method as described in the first aspect or the second aspect.

[0112] Ninthly, embodiments of this disclosure provide a program product, wherein,

[0113] When the program product is executed by a communication device, the communication device performs the method described in the first aspect or the second aspect.

[0114] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in alternative implementations of the first and second aspects.

[0115] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0116] It is understood that the aforementioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0117] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0118] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0119] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0120] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0121] In the embodiments disclosed herein, "multiple" refers to two or more.

[0122] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0123] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0124] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0125] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0126] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0127] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0128] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0129] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0130] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0131] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0132] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0133] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0134] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0135] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0136] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0137] As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102.

[0138] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0139] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0140] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), wireless backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a wireless fidelity (WiFi) system.

[0141] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0142] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0143] In some embodiments, a core network device can be a single device comprising one or more network elements, or it can be multiple devices or a group of devices, each comprising all or part of one or more network elements. Network elements can be virtual or physical. The core network includes, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC). Alternatively, a core network device refers to a network element with a specific function, such as an Access Management Function (AMF) or a Service Management Function (SMF).

[0144] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions provided in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems.

[0145] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to a part thereof, but are not limited thereto.

[0146] The entities shown in Figure 1 are illustrative. The communication system may include all or some of the entities in Figure 1, or it may include other entities outside of Figure 1. The number and form of each entity are arbitrary. The connection relationship between the entities is illustrative. The entities may not be connected to each other or may be connected in any way. The connection may be direct or indirect, wired or wireless.

[0147] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication processing methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0148] In applications using high-spectral-efficiency waveforms, a high peak-to-average power ratio (PAPR) can lead to various problems. For example, a high PAPR can cause nonlinear distortion after the signal is input to the RF power amplifier, resulting in in-band distortion and out-of-band radiation, potentially leading to significant maximum power reduction (MPR). Alternatively, a high PAPR can reduce the efficiency of the RF power amplifier (PA). Or, a high PAPR may place higher demands on the dynamic range of the digital-to-analog converter (DAC), leading to a decrease in DAC efficiency.

[0149] To mitigate the impact of high PAPR (Packet Reduction Rate), certain processing is typically performed at the transmitter side, with corresponding reverse processing required at the receiver. Related PAPR reduction techniques are generally integrated within the transmitter, and their parameter control is static, independent of receiver performance.

[0150] Figure 2a is an interactive schematic diagram illustrating a method for transmitting and receiving capability information according to an embodiment of the present disclosure. As shown in Figure 2a, the present disclosure relates to a method for transmitting and receiving capability information, the method comprising:

[0151] In step S2101, terminal 101 sends capability information to network device 102.

[0152] In some embodiments, capability information is used to indicate that terminal 101 supports PAPR of the adjustment signal.

[0153] Optionally, the terminal 101 supports adjusting PAPR by either reducing PAPR or adjusting PAPR from reduced PAPR to restored PAPR.

[0154] In some embodiments, capability information can be indicated by one or more bits to show whether the terminal supports adjusting PAPR. For example, one bit can be used to indicate whether the terminal supports adjusting PAPR; when the bit is 1, it means the terminal supports adjusting PAPR, such as lowering PAPR; when the bit is 0, it means the terminal does not support adjusting PAPR.

[0155] In some embodiments, the capability information includes a first information field, which indicates at least one adjustment value, wherein the adjustment value represents a value by which the terminal 101 is able to reduce PAPR.

[0156] Optionally, terminal 101 may indicate support for adjusting PAPR by reporting capability information, such as support for reducing PAPR.

[0157] Optionally, the first information field may occupy one or more bits to indicate one or more adjustment values ​​supported by terminal 101. For example, the adjustment value is a reduction value that terminal 101 supports to reduce PAPR. For example, based on the capability information, the first information field of terminal 101 indicates that the supported reduction value is at least one of the following: 1dB, 2dB, 3dB.

[0158] In some embodiments, the capability information includes a second information field, which includes at least one of the following:

[0159] An indicator bit used to indicate whether terminal 101 supports signal waveform shaping;

[0160] Parameter information for waveform shaping supported by terminal 101.

[0161] Optionally, the indicator bit may occupy 1 bit. If this 1 bit is 1, it indicates that terminal 101 supports PAPR adjustment by waveform shaping (spectrum shaping); if this 1 bit is 0, it indicates that terminal 101 does not support waveform shaping. Waveform shaping can multiply the original input sequence with a shaping matrix to generate a certain correlation between the OFDM subcarriers, thereby reducing PAPR; such as root raised cosine (RRC) shaping.

[0162] Optionally, the parameter information includes a waveform index and / or a shaping factor. For example, the second information field indicates the waveforms that the terminal supports for shaping, such as waveform 1 or waveform 2. As another example, the second information field indicates the shaping factor (alpha) supported by the terminal, such as alpha = 0, 0.1, or 0.2.

[0163] In one example, the second information field includes parameter information, that is, by reporting the parameter information of waveform shaping, the terminal 101 is implicitly instructed to support waveform shaping.

[0164] In another example, the second information field includes an indication bit, which allows terminal 101 to report support for waveform shaping via capability information and to perform waveform shaping according to the waveform index or shaping factor indicated by network device 102.

[0165] In another example, the second information field includes an indicator bit and parameter information, indicating that terminal 101 supports waveform shaping, and the parameter information supported by terminal 101, respectively.

[0166] In some embodiments, the capability information may include a first information field or a second information field, implicitly indicating that terminal 101 supports adjusting PAPR. Alternatively, the capability information may include both a first information field and a second information field.

[0167] In some embodiments, the capability information includes a third information field, which includes at least one of the following:

[0168] An indicator bit used to indicate whether terminal 101 supports adjustment of signal clipping and filtering;

[0169] The threshold value supported by terminal 101 indicates that the PAPR after the limit adjustment can be less than or equal to the threshold value.

[0170] Optionally, the indicator bit may occupy 1 bit. If the 1 bit is 1, it indicates that the terminal 101 supports amplitude limiting to adjust PAPR; if the 1 bit is 0, it indicates that the terminal 101 does not support amplitude limiting. Amplification can reduce PAPR by peak elimination, but it may cause waveform distortion and affect the error vector magnitude (EVM).

[0171] Optionally, terminal 101 may support one or more threshold values. For example, if it supports 7dB or 8dB, it means that terminal 101 can limit the PAPR to be less than or equal to 7dB or 8dB.

[0172] In one example, the third information field includes the threshold value supported by terminal 101, implicitly indicating that terminal 101 supports amplitude limiting.

[0173] In another example, the third information field includes an indication bit, which allows terminal 101 to report capability information supporting amplitude limiting and to adjust amplitude limiting according to the amplitude limiting parameters indicated by network device 102.

[0174] In yet another example, the third information field includes an indicator bit and a supported threshold value, indicating that terminal 101 supports amplitude limiting adjustment and the supported threshold value, respectively.

[0175] In some embodiments, the capability information may include one of a first information field, a second information field, and a third information field, implicitly indicating that terminal 101 supports adjusting PAPR. Alternatively, the capability information may include two or three of the first, second, and third information fields.

[0176] In some embodiments, after establishing a connection with the network device 102, the terminal 101 may perform step S2101 to send capability information.

[0177] In some embodiments, network device 102 receives the aforementioned capability information.

[0178] In step S2102, network device 102 sends configuration information to terminal 101.

[0179] In some embodiments, the configuration information includes time-domain and / or frequency-domain resources of the reference signal (or pilot signal).

[0180] Optionally, the configuration information is used to configure the time and frequency resources for the uplink transmission reference signal of terminal 101.

[0181] In some embodiments, the reference signal is used to determine the channel state information of the uplink channel so that the network device 102 can know the uplink channel condition and better optimize uplink transmission.

[0182] In some embodiments, terminal 101 receives the configuration information to learn the time and frequency resources used when transmitting the reference signal.

[0183] In some embodiments, step S2102 may be omitted, such as when the time-domain and / or frequency-domain resources of the reference signal can be determined by a protocol definition, as described in step S2103.

[0184] In step S2103, network device 102 sends notification information to terminal 101.

[0185] In some embodiments, the notification information is used to instruct the terminal 101 to send a reference signal on predefined time-domain resources and / or frequency-domain resources.

[0186] In some embodiments, a predefined time-frequency resource (or preset resource) can be used to transmit the reference signal through a protocol definition. In this case, the network device 102 needs to notify the terminal 101 to transmit the reference signal on the predefined time-frequency resource.

[0187] In some embodiments, terminal 101 receives the notification information.

[0188] In step S2104, terminal 101 sends a reference signal to network device 102.

[0189] In some embodiments, terminal 101 may send a reference signal based on the time-frequency resources configured in network device 102 in step S2102.

[0190] In some embodiments, after receiving the notification information in step S2103, terminal 101 may send a reference signal based on predefined time-frequency resources.

[0191] In some embodiments, network device 102 receives and measures a reference signal to obtain channel state information of the uplink channel.

[0192] Step S2105, network device 102 determines the scheduling scheme.

[0193] In some embodiments, the network device 102 performs uplink transmission optimization analysis on the terminal 101 based on the terminal's capability information, channel state information determined by the measurement reference signal, and the demodulation capability of the network device 102 itself, and determines whether the terminal 101 needs to adjust PAPR and other related information based on the analysis results.

[0194] For example, if network device 102 knows that the channel quality meets the communication requirements based on the measured reference signal, it may not instruct terminal 101 to adjust PAPR; or, if network device 102 has strong demodulation capability and can still demodulate accurately when the channel quality is slightly poor, network device 102 may not require terminal 101 to adjust PAPR.

[0195] For example, when network device 102 determines that it cannot accurately receive uplink information based on the channel state information of the uplink channel and its own demodulation capability, it can instruct terminal 101 to adjust PAPR if terminal 101 supports PAPR adjustment capability, so as to ensure the communication performance of uplink communication.

[0196] In step S2106, network device 102 sends instruction information to terminal 101.

[0197] In some embodiments, the indication information is used to instruct terminal 101 to adjust PAPR during uplink transmission.

[0198] In some embodiments, in conjunction with the description of step S2105, network device 102 may not send an indication message when it can accurately obtain uplink information; or it may send an indication message to terminal 101 that supports PAPR adjustment capability to indicate that terminal 101 does not need to reduce PAPR.

[0199] In some embodiments, in conjunction with the description of step S2105, when the network device 102 needs to optimize the uplink communication quality, it may send an instruction message to the terminal 101 that supports PAPR adjustment capability to instruct the terminal 101 to reduce PAPR.

[0200] In some embodiments, when the indication information is used to instruct the terminal 101 to adjust, for example, reduce PAPR, the network device 102 can carry different content through the indication information according to the capabilities of the terminal 101.

[0201] In some embodiments, the indication information includes at least one of the following:

[0202] The PAPR adjustment value indicated by network device 102;

[0203] The waveform corresponding to the waveform shaping indicated by network device 102;

[0204] The shaping factor corresponding to the waveform shaping indicated by network device 102;

[0205] The threshold value corresponding to the amplitude limit indicated by network device 102.

[0206] Optionally, the parameters indicated by network device 102 may be the same as or different from the capabilities supported by terminal 101. For example, if terminal 101 supports multiple waveforms, network device 102 may instruct terminal 101 to adjust PAPR according to one of the waveforms. Alternatively, if terminal 101 supports multiple adjustment values, network device 102 may instruct terminal 101 to decrease PAPR according to one of the adjustment values.

[0207] In some embodiments, terminal 101 receives the instruction information.

[0208] In step S2107, after adjusting PAPR according to the instruction information, terminal 101 sends an uplink signal to network device 102.

[0209] In some embodiments, the terminal 101 adjusts, for example, by reducing PAPR based on indication information before performing uplink transmission, thereby achieving a balance between energy saving and linearity and improving communication efficiency.

[0210] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0211] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0212] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0213] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0214] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0215] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0216] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0217] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0218] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0219] The method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2107.

[0220] In some embodiments, at least one of steps S2102 to S2107 is optional and can be replaced or substituted by one or more steps in different embodiments.

[0221] In some embodiments, steps S2102 and S2103 are parallel schemes, and one of them can be performed.

[0222] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2a.

[0223] In this embodiment, terminal 101 can report its capabilities. Network device 102 dynamically adjusts the PAPR optimization scheme during each communication process based on the capabilities of terminal 101, the channel state of the uplink channel, and its own demodulation capabilities. It can also feed back the adjustment scheme to terminal 101 via indication information. Terminal 101 adjusts the PAPR according to the indication information and transmits an uplink signal. Specifically, network device 102 can combine the current channel state and its own demodulation capabilities to select the optimal PAPR adjustment scheme, thereby achieving a balance between energy saving and linearity for terminal 101 and improving communication efficiency.

[0224] Figure 2b is an interactive schematic diagram illustrating a method for transmitting and receiving capability information according to an embodiment of the present disclosure. As shown in Figure 2b, the present disclosure relates to a method for transmitting and receiving capability information, the method comprising:

[0225] In step S2201, terminal 101 determines whether PAPR adjustment is supported.

[0226] In some embodiments, terminal 101 determines whether PAPR adjustment is supported based on device architecture or device implementation.

[0227] Optionally, if terminal 101 does not support adjusting PAPR, terminal 101 can report that it does not support adjusting PAPR through the capability information in step S2202, or it can not report the capability information, that is, it does not execute step S2202.

[0228] Optionally, if terminal 101 supports PAPR adjustment, terminal 101 can report support for PAPR adjustment through the capability information in step S2202. For terminal 101 that supports PAPR adjustment, it can adjust the PAPR of uplink transmission, as described in step S22.

[0229] In step S2202, terminal 101 sends capability information to network device 102.

[0230] In some embodiments, the implementation of step S2202 can be referred to the implementation of step S2101 in FIG2a, and will not be repeated here.

[0231] In some embodiments, terminal 101 can report whether it supports adjusting PAPR or not by using capability information.

[0232] In some embodiments, terminal 101 may send capability information when PAPR adjustment is supported, and does not need to send capability information when PAPR adjustment is not supported.

[0233] In step S2203, network device 102 determines the scheduling scheme.

[0234] In some embodiments, network device 102 may determine a scheduling scheme based on capability information.

[0235] In some embodiments, the implementation of step S2203 can be referred to the implementation of step S2105 in FIG2a, and will not be repeated here. For example, network device 102 determines a scheduling scheme based on capability information, network device 102's measurement information of the uplink channel, and network device 102's demodulation capability.

[0236] In step S2204, network device 102 sends instruction information to terminal 101.

[0237] In some embodiments, the implementation of step S2204 can be referred to the implementation of step S2106 in FIG2a, and will not be repeated here.

[0238] In some embodiments, network device 102 may send instruction information to terminal 101 that supports adjusting PAPR.

[0239] Step S2205: Terminal 101 adjusts PAPR.

[0240] In some embodiments, the terminal that supports adjusting PAPR performs this step S2205.

[0241] In some embodiments, terminal 101 may adjust PAPR based on indication information, such as adjusting PAPR based on the parameters indicated by the indication information in step S2106.

[0242] In some embodiments, the terminal 101 may adjust PAPR during uplink transmission to improve communication efficiency, as shown in the implementation of step S2107 in FIG2a, which will not be described in detail here.

[0243] The method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2205.

[0244] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2b.

[0245] Figure 3a is a flowchart illustrating a method for transmitting capability information according to an embodiment of the present disclosure. As shown in Figure 3a, this embodiment of the present disclosure relates to a method for transmitting capability information, which is executed by a terminal 101. The method includes:

[0246] Step S3101: Send capability information.

[0247] In some embodiments, the implementation of step S3101 can be found in the implementation of step S2101 in FIG2a, and will not be repeated here.

[0248] Step S3102: Receive configuration information.

[0249] In some embodiments, the implementation of step S3102 can be found in the implementation of step S2102 in FIG2a, and will not be repeated here.

[0250] Step S3103: Receive notification information.

[0251] In some embodiments, the implementation of step S3103 can be found in the implementation of step S2103 in FIG2a, and will not be repeated here.

[0252] Step S3104: Send a reference signal.

[0253] In some embodiments, the implementation of step S3104 can be found in the implementation of step S2104 in FIG2a, and will not be repeated here.

[0254] Step S3105: Receive instruction information.

[0255] In some embodiments, the implementation of step S3105 can be referred to the implementation of step S2106 in FIG2a, and will not be repeated here.

[0256] Step S3106: Adjust PAPR according to the instruction information and send an uplink signal.

[0257] In some embodiments, the implementation of step S3106 can be referred to the implementation of step S2107 in FIG2a, and will not be repeated here.

[0258] The method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3106.

[0259] In some embodiments, at least one of steps S3102 to S3106 is optional and can be replaced or substituted by one or more steps in different embodiments.

[0260] In some embodiments, steps S3102 and S3103 are parallel schemes, and one of them can be performed.

[0261] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG3a.

[0262] Figure 3b is a flowchart illustrating a method for transmitting capability information according to an embodiment of the present disclosure. As shown in Figure 3b, this embodiment of the present disclosure relates to a method for transmitting capability information, which is executed by a terminal 101. The method includes:

[0263] Step S3201: Send capability information.

[0264] In some embodiments, the implementation of step S3201 can be found in the implementation of step S2101 in FIG2a, and will not be repeated here.

[0265] Step S3202: Receive instruction information.

[0266] In some embodiments, the implementation of step S3202 can be referred to the implementation of step S2106 in FIG2a, and will not be repeated here.

[0267] Step S3203: Adjust PAPR according to the instruction information and send an uplink signal.

[0268] In some embodiments, the implementation of step S3203 can be found in the implementation of step S2107 in FIG2a, and will not be repeated here.

[0269] The method involved in the embodiments of this disclosure may include at least one of steps S3201 to S3203.

[0270] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG3b.

[0271] Figure 3c is a flowchart illustrating a method for transmitting capability information according to an embodiment of the present disclosure. As shown in Figure 3c, this embodiment of the present disclosure relates to a method for transmitting capability information, which is executed by terminal 101. The method includes:

[0272] Step S3301: Send capability information to network device 102.

[0273] In some embodiments, the implementation of step S3301 can be found in the implementation of step S2101 in FIG2a, and will not be repeated here.

[0274] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG3c.

[0275] Figure 4a is a flowchart illustrating a method for receiving capability information according to an embodiment of the present disclosure. As shown in Figure 4a, this embodiment of the present disclosure relates to a method for receiving capability information, which is executed by a network device 102. The method includes:

[0276] Step S4101: Receive capability information.

[0277] In some embodiments, the implementation of step S4101 can be found in the implementation of step S2101 in FIG2a, and will not be repeated here.

[0278] Step S4102: Send configuration information.

[0279] In some embodiments, the implementation of step S4102 can be found in the implementation of step S2102 in FIG2a, and will not be repeated here.

[0280] Step S4103: Send notification information.

[0281] In some embodiments, the implementation of step S4103 can be found in the implementation of step S2103 in FIG2a, and will not be repeated here.

[0282] Step S4104: Receive the reference signal.

[0283] In some embodiments, the implementation of step S4104 can be found in the implementation of step S2104 in FIG2a, and will not be repeated here.

[0284] Step S4105: Determine the scheduling scheme.

[0285] In some embodiments, the implementation of step S4105 can be found in the implementation of step S2105 in FIG2a, and will not be repeated here.

[0286] Step S4106: Send instruction information.

[0287] In some embodiments, the implementation of step S4106 can be found in the implementation of step S2106 in FIG2a, and will not be repeated here.

[0288] The method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4106.

[0289] In some embodiments, at least one of steps S4102 to S4106 is optional and can be replaced or substituted by one or more steps in different embodiments.

[0290] In some embodiments, steps S4102 and S4103 are parallel schemes, and one of them can be performed.

[0291] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG4a.

[0292] Figure 4b is a flowchart illustrating a method for receiving capability information according to an embodiment of the present disclosure. As shown in Figure 4b, this embodiment of the present disclosure relates to a method for receiving capability information, which is executed by a network device 102. The method includes:

[0293] Step S4201: Receive capability information.

[0294] In some embodiments, the implementation of step S4201 can be found in the implementation of step S2101 in FIG2a, and will not be repeated here.

[0295] Step S4202: Determine the scheduling scheme.

[0296] In some embodiments, the implementation of step S4202 can be referred to the implementation of step S2105 in FIG2a, and will not be repeated here.

[0297] Step S4203: Send instruction information.

[0298] In some embodiments, the implementation of step S4203 can be found in the implementation of step S2106 in FIG2a, and will not be repeated here.

[0299] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG4b.

[0300] Figure 4c is a flowchart illustrating a method for receiving capability information according to an embodiment of the present disclosure. As shown in Figure 4c, this embodiment of the present disclosure relates to a method for receiving capability information, which is executed by a network device 102. The method includes:

[0301] Step S4301: Receive capability information.

[0302] In some embodiments, the implementation of step S4301 can be found in the implementation of step S2101 in FIG2a, and will not be repeated here.

[0303] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG4c.

[0304] In this embodiment of the disclosure, PAPR can be dynamically adjusted based on the capabilities of the terminal and the scheduling of network devices. The following examples illustrate the methods of this embodiment.

[0305] Example 1:

[0306] The terminal establishes a connection with the base station, reports its ability to dynamically adjust PAPR to the base station, and the base station provides feedback based on the reported capabilities to indicate whether the terminal can adjust PAPR.

[0307] The ability of a terminal to report dynamic adjustment of PAPR to a base station may also include one of the following:

[0308] 1) PAPR reduction values: such as 1dB, 2dB, 3dB, etc.

[0309] 2) Whether it supports spectrum shaping, and further, may include shaped waveforms, such as waveform 1, waveform 2, etc.

[0310] It may also include an adjustable shaping factor size, such as shaping factor alpha = 0, 0.1, 0.2, etc.

[0311] 3) Whether it supports amplitude limiting. Furthermore, it may also include amplitude limiting threshold information, such as: 7dB, 8dB, etc.

[0312] In this example, after receiving the terminal's capability information, the base station, during communication with the terminal, performs optimization analysis on the terminal's transmitted signal based on the channel state information of the received signal and the base station's own demodulation capabilities. Based on the analysis results, it determines whether the terminal needs to adjust its PAPR capability and other relevant information. Based on the analyzed information, the base station feeds back to the terminal indicating whether to adjust the PAPR, and may further instruct, based on the capability information reported by the terminal, one of the following:

[0313] 1) PAPR decrease value;

[0314] 2) Shape the waveform;

[0315] 3) Shaping factors;

[0316] 4) Amplitude limiting threshold;

[0317] In this example, after receiving feedback instructions from the base station, the terminal adjusts the PAPR according to the feedback instructions and transmits the signal.

[0318] Example 2:

[0319] To enable the base station to better optimize the uplink transmission of the terminal, in another embodiment, the base station can instruct the terminal to transmit corresponding pilot signals on the configured resources. The specific implementation process can be referred to as follows: steps S11 to S16:

[0320] Step S11: The terminal establishes a connection with the base station;

[0321] Step S12: The terminal reports its dynamic PAPR capability to the base station.

[0322] Step S13: The base station configures pilot signal resources to the terminal;

[0323] Step S14: The base station receives the pilot signal and analyzes the pilot signal to determine whether the terminal needs to adjust its PAPR capability.

[0324] Step S15: The base station sends feedback to the terminal indicating whether to adjust PAPR, and may also include capability information reported by the terminal.

[0325] In step S16, after receiving the feedback instruction from the base station, the terminal adjusts the PAPR according to the feedback instruction information and transmits the signal.

[0326] Optionally, in step S13, preset resources can also be defined via a protocol. If preset resources are used, the base station only needs to notify the terminal to transmit pilot information within the preset resources. Resources include time-domain and frequency-domain information.

[0327] Optionally, the implementation of steps S12 and S15 can be found in the description of Example 1.

[0328] In this embodiment, after the terminal establishes a connection with the base station, the terminal reports its dynamic PAPR adjustment capability to the base station. Upon receiving the terminal's capability information, the base station, during communication with the terminal, performs optimization analysis on the terminal's transmitted signal based on the channel state information of the received signal and the base station's own demodulation capabilities. Based on the analysis results, it determines whether the terminal needs to adjust its PAPR capability and other relevant information. Based on the analysis information, the base station sends feedback to the terminal indicating whether to adjust the PAPR. After receiving the feedback instruction from the base station, the terminal adjusts its PAPR according to the feedback instruction and transmits the signal.

[0329] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0330] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD), such as a field-programmable gate array (FPGA). This PLD can include a large number of logic gates, and the connection relationships between these logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules in the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0331] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0332] Figure 5a is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. As shown in Figure 5a, the terminal 5100 may include at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the transceiver module 5101 is used to send capability information to a network device, the capability information being used to indicate that the terminal supports the peak-to-average power ratio (PAPR) of the adjustable signal.

[0333] Optionally, the transceiver module 5101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module 5102 is used to perform at least one of the other steps performed by the terminal 101 in any of the above methods, which will not be described in detail here.

[0334] Figure 5b is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 5b, the network device 5200 may include at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the transceiver module 5201 is used to receive capability information sent by the terminal, the capability information being used to indicate that the terminal supports the peak-to-average power ratio (PAPR) of the adjustable signal.

[0335] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0336] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0337] Figure 6a is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0338] As shown in Figure 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 can be used to execute any of the above methods. Optionally, one or more processors 6101 can be used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0339] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 6101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0340] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memories 6103 may be located outside the communication device 6100. In optional embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and can be used to receive data from the memories 6103 or other devices, and to send data to the memories 6103 or other devices. For example, the interface circuits 6104 can read data stored in the memories 6103 and send that data to the processor 6101.

[0341] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0342] Figure 6b is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6b, but it is not limited thereto.

[0343] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0344] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Optionally, all or part of the memories 6203 may be located outside chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data from memory 6203 or other devices, and interface circuit 6202 can be used to send data to memory 6203 or other devices. For example, interface circuit 6202 can read data stored in memory 6203 and send the data to processor 6201.

[0345] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0346] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0347] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 6100, cause the communication device 6100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0348] This disclosure also provides a program product that, when executed by the communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0349] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods. Industrial applicability

[0350] Terminals can report their ability to adjust PAPR to network devices by sending capability information. This allows network devices to make adaptive scheduling based on the terminal's capabilities, such as instructing the terminal to reduce PAPR, thereby improving problems such as distortion or low PA efficiency caused by excessively high PAPR.

Claims

1. A method for transmitting capability information, executed by a terminal, the method comprising: Send capability information to the network device, the capability information being used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

2. The method as described in claim 1, wherein, The capability information includes a first information field, which indicates at least one adjustment value, wherein the adjustment value represents the value by which the terminal can reduce the PAPR.

3. The method as described in claim 1 or 2, wherein, The capability information includes a second information field, which includes at least one of the following: An indicator bit used to indicate whether the terminal supports signal waveform shaping; The terminal supports waveform shaping parameter information.

4. The method of claim 3, wherein, The parameter information includes waveform index and / or shaping factor.

5. The method according to any one of claims 1 to 4, wherein, The capability information includes a third information field, which includes at least one of the following: An indicator bit used to indicate whether the terminal supports signal limiting adjustment; The terminal supports a threshold value, which indicates that the PAPR after the limit adjustment can be less than or equal to the threshold value.

6. The method according to any one of claims 1 to 5, wherein, The method further includes: A reference signal is sent to the network device, the reference signal being used to determine the channel state information of the uplink channel.

7. The method of claim 6, wherein, The method further includes: The system receives configuration information sent by the network device, the configuration information including the time-domain resources and / or frequency-domain resources of the reference signal.

8. The method of claim 6, wherein, The method further includes: The terminal receives a notification message sent by the network device, the notification message being used to instruct the terminal to send the reference signal on predefined time-domain resources and / or frequency-domain resources.

9. The method according to any one of claims 1 to 8, wherein, The method further includes: The terminal receives an instruction message sent by the network device, the instruction message being used to instruct the terminal to adjust the PAPR during uplink transmission.

10. The method of claim 9, wherein, The instruction information includes at least one of the following: The PAPR adjustment value indicated by the network device; The waveform corresponding to the waveform shaping indicated by the network device; The shaping factor corresponding to the waveform shaping indicated by the network device; The threshold value corresponding to the amplitude limit indicated by the network device.

11. The method of claim 10, wherein, The method further includes: After adjusting PAPR according to the indicated information, an uplink signal is sent to the network device.

12. The method as claimed in any one of claims 1 to 11, wherein, The method further includes: Determine whether adjusting the PAPR is supported; The capability information is sent when the terminal supports adjusting the PAPR, and / or when the terminal supports adjusting the PAPR. Adjust PAPR as needed.

13. A method for receiving capability information, performed by a network device, the method comprising: The terminal receives capability information, which indicates that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

14. The method of claim 13, wherein, The capability information includes a first information field, which indicates at least one adjustment value, wherein the adjustment value represents the value by which the terminal can adjust the PAPR reduction.

15. The method of claim 13 or 14, wherein, The capability information includes a second information field, which includes at least one of the following: An indicator bit used to indicate whether the terminal supports signal waveform shaping; The terminal supports waveform shaping parameter information.

16. The method of claim 15, wherein, The parameter information includes: waveform index, and / or shaping factor.

17. The method as claimed in any one of claims 13 to 16, wherein, The capability information includes a third information field, which includes at least one of the following: An indicator bit used to indicate whether the terminal supports signal limiting adjustment; The terminal supports a threshold value, which indicates that the PAPR after the limit adjustment can be less than or equal to the threshold value.

18. The method as claimed in any one of claims 14 to 17, wherein, The method further includes: The network device receives a reference signal sent by the terminal, the reference signal being used to determine the channel state information of the uplink channel.

19. The method of claim 18, wherein, The method further includes: The terminal is sent configuration information, which includes the time-domain resources and / or frequency-domain resources of the reference signal.

20. The method of claim 18, wherein, The method further includes: A notification message is sent to the terminal, the notification message being used to instruct the terminal to send the reference signal on predefined time-domain resources and / or frequency-domain resources.

21. The method according to any one of claims 13 to 20, wherein, The method further includes: Send an instruction message to the terminal, the instruction message being used to instruct the terminal to adjust PAPR during uplink transmission.

22. The method of claim 21, wherein, The instruction information includes at least one of the following: The PAPR adjustment value indicated by the network device; The waveform corresponding to the waveform shaping indicated by the network device; The shaping factor corresponding to the waveform shaping indicated by the network device; The threshold value corresponding to the amplitude limit indicated by the network device.

23. The method of claim 22, wherein, The method further includes: The uplink signal sent by the terminal after adjusting PAPR based on the indication information is received.

24. A terminal, comprising: The transceiver module is used to send capability information to the network device, the capability information being used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

25. A network device, comprising: The transceiver module is used to receive capability information sent by the terminal, the capability information being used to indicate that the terminal supports adjusting the peak-to-average power ratio (PAPR) of the signal.

26. A terminal, comprising: One or more processors; The terminal is configured to implement the method according to any one of claims 1 to 12.

27. A network device, comprising: One or more processors; The network device is configured to implement the method according to any one of claims 13 to 23.

28. A storage medium storing instructions, wherein, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1 to 12 or claims 13 to 23.

29. A program product, wherein, When the program product is executed by a communication device, the communication device performs the method as described in any one of claims 1 to 12 or claims 13 to 23.

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