Method for transmitting auxiliary information, and apparatus, device and storage medium

Abstract

The present disclosure relates to a method for transmitting auxiliary information, and an apparatus, a device and a storage medium. The method comprises: a first terminal sending auxiliary information to a network device, wherein the auxiliary information is used for assisting in performing linear compensation on the first terminal. The method in the present disclosure can improve uplink transmission quality.

Description

Methods, apparatus, devices and storage media for transmitting auxiliary information

[0001] This application claims priority to international application PCT / CN2024 / 105985, filed on July 17, 2024, entitled “Method, Apparatus, Device and Storage Medium for Transmitting Auxiliary Information”, the contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to methods, apparatus, devices and storage media for transmitting auxiliary information. Background Technology

[0003] In communication technology, terminals can perform a certain amount of power back-off during transmission to improve the linearity of the terminal power amplifier (PA), i.e., the transmitter. Power back-off limits the terminal's maximum transmit power, thus affecting its uplink coverage performance.

[0004] Summary of the Invention

[0005] In scenarios where the terminal performs power back-off, methods to improve the reception quality of the terminal's transmitted signals need to be provided.

[0006] This disclosure provides a method, apparatus, device, and storage medium for transmitting auxiliary information.

[0007] In a first aspect, embodiments of this disclosure provide a method for reporting auxiliary information, executed by a first terminal, comprising:

[0008] Auxiliary information is sent to the network device, the auxiliary information being used to assist in linear compensation of the first terminal.

[0009] Secondly, embodiments of this disclosure provide a method for receiving auxiliary information, executed by a network device, wherein...

[0010] The auxiliary information is received from the receiving terminal, or the auxiliary information is determined based on the transmission signal of the first terminal. The auxiliary information is used to assist in linear compensation of the first terminal.

[0011] Thirdly, embodiments of this disclosure provide a method for receiving auxiliary information, executed by a second terminal, including:

[0012] The network device receives auxiliary information sent by the network device, the auxiliary information being used to assist in linear compensation of the first terminal, wherein the auxiliary information is received by the network device from the first terminal or determined by the network device based on the transmission signal of the first terminal.

[0013] Fourthly, embodiments of this disclosure provide a first terminal, including:

[0014] The transceiver module is used to send auxiliary information to the network device, the auxiliary information being used to assist in linear compensation of the first terminal.

[0015] Fifthly, embodiments of this disclosure provide a network device, including:

[0016] The transceiver module is used to receive auxiliary information sent by the first terminal; or,

[0017] The processing module is used to determine the auxiliary information based on the transmission signal of the first terminal;

[0018] The auxiliary information is used to assist in linear compensation of the first terminal.

[0019] Sixthly, embodiments of this disclosure provide a second terminal, including:

[0020] The transceiver module is used to receive auxiliary information sent by the network device. The auxiliary information is used to assist in linear compensation of the first terminal. The auxiliary information is received by the network device from the first terminal or determined by the network device based on the transmission signal of the first terminal.

[0021] In a seventh aspect, embodiments of this disclosure provide a communication system, including a first terminal and a network device, or the communication system includes the first terminal, the network device, and a second terminal;

[0022] The first terminal is configured to implement the method of the first aspect;

[0023] The network device is configured to implement the method of the second aspect;

[0024] The second terminal is configured to implement the method of the third aspect.

[0025] Eighthly, embodiments of this disclosure provide a communication device, including:

[0026] One or more processors;

[0027] The communication device is configured to implement the method described in the first aspect, the second aspect, or the third aspect.

[0028] Ninthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0029] When the instructions are executed on a communication device, the communication device causes the communication device to perform the method as described in any of the first to second aspects.

[0030] In a tenth aspect, embodiments of this disclosure provide a program product, wherein,

[0031] When the program product is executed by a communication device, the communication device performs the method as described in any of the first to second aspects.

[0032] In this embodiment of the disclosure, the first terminal can report auxiliary information to the network device. Based on the received or self-determined auxiliary information, the network device can obtain reference information for linear compensation. Thus, the network device can perform linear compensation on the signal transmitted by the first terminal at an appropriate time, or the network device can share the auxiliary information with other terminals for linear compensation, thereby improving the reception quality or transmission quality of the signal transmitted by the first terminal. Attached Figure Description

[0033] 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.

[0034] Figures 1a and 1b are exemplary schematic diagrams illustrating the architecture of a communication system according to embodiments of the present disclosure;

[0035] Figures 1c and 1d are schematic diagrams of communication scenarios according to embodiments of the present disclosure;

[0036] Figures 2a and 2b are exemplary schematic diagrams illustrating a transmission method according to an embodiment of the present disclosure;

[0037] Figures 3a to 3c are exemplary flowcharts of a method provided according to embodiments of the present disclosure;

[0038] Figures 4a to 4c are exemplary flowcharts of a method provided according to embodiments of the present disclosure;

[0039] Figures 5a and 5b are exemplary flowcharts of a method provided according to embodiments of the present disclosure;

[0040] Figure 6a is a schematic diagram of the structure of a first terminal according to an embodiment of the present disclosure;

[0041] Figure 6b is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure;

[0042] Figure 6c is a schematic diagram of the structure of a second terminal according to an embodiment of the present disclosure;

[0043] Figure 7a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0044] Figure 7b is a schematic diagram of a communication device according to an embodiment of the present disclosure. Detailed Implementation

[0045] This disclosure provides methods, apparatus, devices, and storage media for transmitting auxiliary information.

[0046] In a first aspect, embodiments of this disclosure provide a method for reporting auxiliary information, executed by a terminal, including:

[0047] Auxiliary information is sent to the network device, the auxiliary information being used to assist in linear compensation of the first terminal.

[0048] In the above embodiments, the first terminal can report auxiliary information to the network device. Based on the received or self-determined auxiliary information, the network device can obtain reference information for linear compensation. Thus, the network device can perform linear compensation on the signal transmitted by the first terminal at an appropriate time, or the network device can share the auxiliary information with other terminals for linear compensation, thereby improving the reception quality or transmission quality of the signal transmitted by the first terminal.

[0049] In conjunction with the embodiments of the first aspect, in some embodiments, the auxiliary information includes at least one of the following:

[0050] Nonlinear performance parameters of the terminal transmitter;

[0051] At least one vector error magnitude (EVM) information;

[0052] At least one Maximum Power Reduction (MPR) message;

[0053] Power amplifier (PA) type.

[0054] In the above embodiments, when the auxiliary information includes a parameter related to the transmission power, the processing power consumption of the receiver can be saved; when the auxiliary information includes multiple parameters related to the transmission power, the receiver can select all or some parameters for linear compensation, thereby improving the selectivity of the auxiliary information and the flexibility of linear compensation.

[0055] In conjunction with the embodiments of the first aspect, in some embodiments, the nonlinear performance parameter includes at least one of the following:

[0056] The index or number of the input and output power curves;

[0057] 1dB compression point (P1dB);

[0058] Output Third-order Intercept Point 3 (OIP3).

[0059] In the above embodiments, the aforementioned nonlinear performance parameters of the first terminal can assist the receiving end in obtaining the relevant nonlinear parameters of the first terminal, thereby enabling more accurate linear compensation.

[0060] In conjunction with the embodiments of the first aspect, in some embodiments, different EVM information corresponds to different waveforms and different modulation schemes;

[0061] Different MPR information corresponds to different waveforms and different modulation methods.

[0062] In the above embodiments, the EVM information is EVM information corresponding to different dimensions, thereby improving the selectivity of EVM information.

[0063] In conjunction with the embodiments of the first aspect, in some embodiments, sending auxiliary information to the network device includes: sending auxiliary information to the network device on a frequency band basis.

[0064] In conjunction with the embodiments of the first aspect, in some embodiments, before sending auxiliary information to the network device, the method further includes:

[0065] The first terminal receives a first instruction message sent by the network device, the first instruction message being used to instruct the first terminal to send the auxiliary information to the network device.

[0066] In the above embodiments, the first terminal reports auxiliary information only in response to the first instruction information from the network device, thereby improving the management capabilities of the network device.

[0067] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0068] The system receives a second indication message sent by the network device, or receives a second indication message sent by a second terminal, wherein the second indication message is used to indicate an increase in transmission power.

[0069] In the above embodiments, the first terminal can receive second indication information sent by the network device or the second terminal, and perform power enhancement based on the second indication information to improve the coverage and reception quality of the uplink signal while ensuring the linearity of the uplink signal.

[0070] In conjunction with the embodiments of the first aspect, in some embodiments, the second indication information is further used to indicate at least one of the following:

[0071] First transmission power;

[0072] Power increment.

[0073] In the above embodiments, the second terminal or network device can indicate the power information that needs to be met during the power boosting process to the first terminal, so that the first terminal can boost the power within a reasonable range.

[0074] In conjunction with the embodiments of the first aspect, in some embodiments, the method further includes:

[0075] Based on the second indication information, the current transmit power, and the out-of-band suppression information, a second transmit power is determined, wherein the second transmit power is less than or equal to the first transmit power, or the difference between the second transmit power and the current transmit power is less than or equal to the power increment.

[0076] In the above embodiments, the first terminal can increase the power within a reasonable range based on the first transmission power or power increment indicated by the second indication information.

[0077] Secondly, embodiments of this disclosure provide a method for receiving auxiliary information, executed by a network device, wherein...

[0078] The system receives auxiliary information sent by a first terminal, or determines the auxiliary information based on the transmission signal of the first terminal. The auxiliary information is used to assist in linear compensation of the first terminal.

[0079] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0080] The auxiliary information is sent to the second terminal.

[0081] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0082] The system receives a request from the second terminal, the request being used to request the auxiliary information.

[0083] In conjunction with embodiments of the second aspect, in some embodiments, the auxiliary information includes at least one of the following:

[0084] Nonlinear performance parameters of the terminal transmitter;

[0085] At least one vector error magnitude EVM information;

[0086] At least one maximum power backoff (MPR) message;

[0087] Power amplifier PA type.

[0088] In conjunction with embodiments of the second aspect, in some embodiments, the nonlinear performance parameter includes at least one of the following:

[0089] The index or number of the input and output power curves;

[0090] 1dB compression point;

[0091] Output the third-order intermodulation intercept point OIP3.

[0092] In conjunction with the embodiments of the second aspect, in some embodiments, different EVM information corresponds to different waveforms and different modulation schemes;

[0093] Different MPR information corresponds to different waveforms and different modulation methods.

[0094] In conjunction with the embodiments of the second aspect, in some embodiments, receiving the auxiliary information sent by the first terminal includes: receiving the auxiliary information on a frequency band basis.

[0095] In conjunction with embodiments of the second aspect, in some embodiments, before receiving auxiliary information sent by the first terminal, the method further includes:

[0096] Send a first instruction message to the first terminal, the first instruction message being used to instruct the first terminal to send the auxiliary information to the network device.

[0097] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0098] Based on the auxiliary information, determine whether to perform linear compensation on the first terminal.

[0099] In conjunction with the embodiments of the second aspect, in some embodiments, determining whether to perform linear compensation on the first terminal based on the auxiliary information includes:

[0100] Based on the auxiliary information, the current transmit power of the first terminal, and the channel state information, determine whether to perform linear compensation on the first terminal.

[0101] In conjunction with the embodiments of the second aspect, in some embodiments, determining whether to perform linear compensation on the first terminal based on the auxiliary information, the current transmit power of the first terminal, and the channel state information includes:

[0102] Linear compensation is determined for the first terminal when at least one of the following conditions is met:

[0103] The transmitter's nonlinear performance parameter is less than or equal to a first threshold.

[0104] The EVM information is greater than or equal to the second threshold;

[0105] The MPR information is greater than or equal to the third threshold;

[0106] The current transmit power of the first terminal is greater than or equal to the fourth threshold.

[0107] The channel state information is less than or equal to the fifth threshold.

[0108] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0109] When the network device has artificial intelligence capabilities, linear compensation is performed on the first terminal based on the historical transmission information of the first terminal.

[0110] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0111] The linear compensation priority is determined based on the PA type, where different PA types correspond to different linear compensation priorities.

[0112] In conjunction with the embodiments of the second aspect, in some embodiments, the method further includes:

[0113] Linear compensation is applied to the first terminal;

[0114] If the result of linear compensation meets the first condition, a second indication message is sent to the first terminal, the second indication message being used to indicate power enhancement.

[0115] In conjunction with the embodiments of the second aspect, in some embodiments, the linear compensation result satisfies a first condition, including:

[0116] The difference between the following two is greater than or equal to the sixth threshold:

[0117] The signal-to-noise ratio of the uplink signal after linear compensation;

[0118] The minimum signal-to-noise ratio at which the network device correctly demodulates the uplink signal.

[0119] In conjunction with the embodiments of the second aspect, in some embodiments, sending the second indication information to the first terminal includes:

[0120] When the signal-to-noise ratio of the uplink signal after linear compensation is less than the seventh threshold, a second indication message is sent to the first terminal.

[0121] In conjunction with the embodiments of the first aspect, in some embodiments, the second indication information is used to indicate at least one of the following:

[0122] First transmission power;

[0123] Power increment.

[0124] Thirdly, embodiments of this disclosure provide a method for receiving auxiliary information, executed by a second terminal, comprising:

[0125] The network device receives auxiliary information sent by the network device, the auxiliary information being used to assist in linear compensation of the first terminal, wherein the auxiliary information is received by the network device from the first terminal or determined by the network device based on the transmission signal of the first terminal.

[0126] In conjunction with the embodiments of the third aspect, in some embodiments, the method further includes:

[0127] Send a request message to the network device, the request message being used to request the auxiliary information.

[0128] In conjunction with embodiments of the third aspect, in some embodiments, the auxiliary information includes at least one of the following:

[0129] The nonlinear performance parameters of the transmitter of the first terminal;

[0130] At least one vector error magnitude EVM information;

[0131] At least one maximum power backoff (MPR) message;

[0132] Power amplifier PA type.

[0133] In conjunction with embodiments of the third aspect, in some embodiments, the nonlinear performance parameter includes at least one of the following:

[0134] The index or number of the input and output power curves;

[0135] 1dB compression point;

[0136] Output the third-order intermodulation intercept point OIP3.

[0137] In conjunction with the embodiments of the third aspect, in some embodiments, different EVM information corresponds to different waveforms and different modulation schemes;

[0138] Different MPR information corresponds to different waveforms and different modulation methods.

[0139] In conjunction with embodiments of the third aspect, in some embodiments, the auxiliary information is in frequency bands.

[0140] In conjunction with the embodiments of the third aspect, in some embodiments, the method further includes:

[0141] Based on the auxiliary information, determine whether to perform linear compensation on the first terminal.

[0142] In conjunction with the embodiments of the third aspect, in some embodiments, the method further includes:

[0143] Send the second instruction information to the first terminal; or,

[0144] Send a second instruction message to the network device, and then send the second instruction message to the first terminal through the network device;

[0145] The second indication information is used to indicate a power increase.

[0146] In conjunction with embodiments of the third aspect, in some embodiments, the second indication information is further used to indicate at least one of the following:

[0147] First transmission power;

[0148] Power increment.

[0149] In conjunction with the embodiments of the third aspect, in some embodiments, the second terminal has linear compensation capability.

[0150] Fourthly, embodiments of this disclosure provide a first terminal, including:

[0151] The transceiver module is used to send auxiliary information to the network device, the auxiliary information being used to assist in linear compensation of the first terminal.

[0152] Fifthly, embodiments of this disclosure provide a network device, including:

[0153] The transceiver module is used to receive auxiliary information sent by the first terminal; or,

[0154] The processing module is used to determine the auxiliary information based on the transmission signal of the first terminal;

[0155] The auxiliary information is used to assist in linear compensation of the first terminal.

[0156] Sixthly, embodiments of this disclosure provide a second terminal, including:

[0157] The transceiver module is used to receive auxiliary information sent by the network device. The auxiliary information is used to assist in linear compensation of the first terminal. The auxiliary information is received by the network device from the first terminal or determined by the network device based on the transmission signal of the first terminal.

[0158] In a seventh aspect, embodiments of this disclosure provide a communication system, including a first terminal and a network device, or the communication system includes the first terminal, the network device, and a second terminal;

[0159] The first terminal is configured to implement the method of the first aspect;

[0160] The network device is configured to implement the method of the second aspect;

[0161] The second terminal is configured to implement the method of the third aspect.

[0162] Eighthly, embodiments of this disclosure provide a communication device, including:

[0163] One or more processors;

[0164] The communication device is configured to implement the method described in the first aspect, the second aspect, or the third aspect.

[0165] Ninthly, embodiments of this disclosure provide a storage medium storing instructions, wherein...

[0166] When the instructions are executed on a communication device, the communication device causes the communication device to perform the method as described in any of the first to second aspects.

[0167] In a tenth aspect, embodiments of this disclosure provide a program product, wherein,

[0168] When the program product is executed by a communication device, the communication device performs the method as described in any of the first to second aspects.

[0169] In an eleventh aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the method described in any one of the first to second aspects.

[0170] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described according to an optional implementation of any of the first to second aspects described above.

[0171] 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.

[0172] 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.

[0173] 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.

[0174] 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.

[0175] 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.

[0176] In the embodiments disclosed herein, "multiple" refers to two or more.

[0177] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0178] 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.

[0179] 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.

[0180] 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.

[0181] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0182] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0183] 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”.

[0184] 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.

[0185] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0186] 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)."

[0187] 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.

[0188] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0189] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0190] 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.

[0191] Figure 1a is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1a, the communication system 100 includes a first terminal 101 and a network device 102.

[0192] Figure 1b is a schematic diagram of the architecture of another communication system according to an embodiment of the present disclosure. As shown in Figure 1b, the communication system 100 includes a first terminal 101, a network device 102, and a second terminal 103. As shown in Figures 1c and 1d, the first terminal 101 and the second terminal 103 can communicate directly. This communication system can be applied to device-to-device (D2D) or vehicle-to-everything (V2X) application scenarios.

[0193] In some embodiments, the first terminal 101 or the second terminal 103 includes, for example, at least one of the following: a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home, but is not limited thereto.

[0194] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0195] Optionally, the access network device may be a node or device that connects a terminal to a wireless network. The access network device may include 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), radio 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, but is not limited thereto.

[0196] 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.

[0197] 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.

[0198] 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).

[0199] 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.

[0200] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1a or FIG1b, or to a part thereof, but are not limited thereto.

[0201] The entities shown in Figure 1a or Figure 1b are illustrative. The communication system may include all or part of the entities in Figure 1a or Figure 1b, or other entities other than those in Figure 1a or Figure 1b. The number and form of each entity are arbitrary. The connection relationship between the entities is illustrative. The entities may not be connected or may be connected. The connection can be in any way, such as direct connection or indirect connection, wired connection or wireless connection.

[0202] 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).

[0203] Power back-off at the terminal can improve the linearity of the power amplifier (PA) or transmitter. For example, by backing down the input power of the terminal's power amplifier by 6-10 dB from the 1 dB compression point, the power amplifier operates at a level much lower than the 1 dB compression point, thus moving away from the saturation region and into the linear operating region. This can significantly improve the third-order intermodulation distortion of the power amplifier; generally, a 1 dB reduction in fundamental power improves third-order intermodulation distortion by 2 dB.

[0204] However, power back-off at the terminal will limit its maximum transmit power, affecting uplink coverage performance. Furthermore, excessive power back-off can also reduce the terminal's transmit efficiency, impacting uplink signal transmission.

[0205] Taking the first terminal 101 as a transmitting terminal or transmitting device as an example, the tolerance for the linearity of the uplink signal transmitted by the first terminal 101 is different for different receiving terminals such as network device 102 or the second terminal 103. Some receiving terminals with strong analytical capabilities can analyze the uplink signal and compensate for the linearity of the uplink signal based on the analysis results, so that even when the linearity of the uplink signal is poor, useful information can still be demodulated correctly.

[0206] Figure 2a is an interactive schematic diagram illustrating a method for transmitting auxiliary information according to an embodiment of the present disclosure. As shown in Figure 2a, this disclosure relates to a method for transmitting auxiliary information, the method comprising:

[0207] In step S2101, network device 102 sends first instruction information to first terminal 101.

[0208] In some embodiments, the first instruction information is used to instruct the first terminal 101 to send auxiliary information to the network device 102.

[0209] In step S2102, the first terminal 101 determines the waveform and modulation method.

[0210] In some embodiments, the first terminal 101 determines the waveform and modulation method according to the protocol.

[0211] In some embodiments, the waveform and modulation scheme correspond to EVM information.

[0212] In some embodiments, the waveform and modulation scheme correspond to MPR information.

[0213] In some embodiments, different EVM information corresponds to different waveforms and different modulation schemes.

[0214] In some embodiments, different MPR information corresponds to different waveforms and different modulation schemes.

[0215] In step S2103, the first terminal 101 sends auxiliary information to the network device 102.

[0216] In some embodiments, auxiliary information is used to assist network device 102 in performing linear compensation on first terminal 101.

[0217] In some embodiments, linear compensation of the first terminal 101 can be replaced by linear compensation of the transmitter of the first terminal 101.

[0218] In some embodiments, linear compensation of the first terminal 101 can be replaced by linear compensation of the uplink signal of the first terminal 101.

[0219] In some embodiments, the auxiliary information includes at least one of the following:

[0220] Nonlinear performance parameters of the terminal transmitter;

[0221] At least one EVM piece of information;

[0222] At least one MPR message;

[0223] PA type.

[0224] In some embodiments, the transmitter nonlinear performance parameters include at least one of the following:

[0225] 1dB compression point (P1dB);

[0226] Output the third-order intermodulation intercept point (OIP3);

[0227] The index or number of the input and output power curves.

[0228] In some embodiments, the 1dB compression point or the power information corresponding to the 1dB compression point may include the input power or output power corresponding to the 1dB compression point. For example, the 1dB compression point (P1dB) is the output power value at a power gain of G1 on the input-output power relationship curve, where G1 = G2 - 1dB, and G2 is the linear gain in the input-output power relationship curve (or input-output power curve). The input-output power curve includes linear and nonlinear regions.

[0229] The transmitter corresponds to a linear dynamic range, within which the amplifier's output power increases linearly with the input power. The ratio of output power to input power is the power gain. As the input power continues to increase, the amplifier enters the nonlinear region, and its output power no longer increases linearly with the input power.

[0230] In some embodiments, the output third-order intermodulation intercept (OIP3) and the input third-order intermodulation intercept (IIP3) are used to measure the linearity of the RF device. On the input power versus output power graph, the third-order intermodulation intercept (TOI) point is where the linearly amplified signal on a given input curve intersects with the third-order nonlinear product. For every 1 dB increase in power, the third-order nonlinear product (IM3) increases by 3 dB; therefore, the 1:1 linearly amplified signal will eventually intersect the IM3 curve. The input power at the third-order intermodulation intercept (TOI) point is the input third-order intermodulation intercept (IIP3), and the output power at the third-order intermodulation intercept (TOI) point is the output third-order intermodulation intercept (OIP3).

[0231] In some embodiments, an index or number can be used to determine the corresponding input-output power curve. In this embodiment, different input-output power curves can be predefined and numbered to form a lookup table. The network device 102 can determine the number of the input-output power curve corresponding to the signal transmitted by the first terminal 101 based on the report from the first terminal 101.

[0232] In some embodiments, EVM information is inversely correlated with the quality parameters of the uplink signal. That is, a smaller EVM value indicates better uplink signal quality.

[0233] In some embodiments, MPR information is inversely correlated with the quality parameters of the uplink signal. That is, a smaller MPR indicates better uplink signal quality.

[0234] In some embodiments, the PA type is one of the following:

[0235] Standard PA;

[0236] Average power tracking (APT) PA;

[0237] Envelope power tracking (EPT) PA.

[0238] In some embodiments, different EVM information corresponds to different waveforms and different modulation schemes.

[0239] In some embodiments, different MPR information corresponds to different waveforms and different modulation schemes.

[0240] In some embodiments, auxiliary information is transmitted in units of frequency bands.

[0241] In some embodiments, the first terminal 101 sends auxiliary information to the network device 102 per band.

[0242] In some embodiments, the protocol specifies at least one information pair, which includes waveform and modulation scheme.

[0243] In one example, the protocol specifies an information pair in which the waveform is DFT-s-OFDM and the modulation scheme is 64QAM.

[0244] In one example, the protocol specifies four information pairs, as shown in Table 1:

[0245] In one information pair, the waveform is DFT-s-OFDM and the modulation method is 64QAM;

[0246] In the other information pair, the waveform is DFT-s-OFDM and the modulation method is 256QAM;

[0247] In the other information pair, the waveform is CP-OFDM and the modulation method is 64QAM;

[0248] In the other information pair, the waveform is CP-OFDM and the modulation method is 256QAM.

[0249] Table 1

[0250] In some embodiments, different waveform and modulation scheme information pairs correspond to different EVM information.

[0251] In one example, as shown in Table 2, where,

[0252] The waveform is DFT-s-OFDM, the modulation method is 64QAM, and the corresponding EVM information is EVM1.

[0253] The waveform is DFT-s-OFDM, the modulation method is 256QAM, and the corresponding EVM information is EVM2.

[0254] The waveform is CP-OFDM, the modulation method is 64QAM, and the corresponding EVM information is EVM3.

[0255] The waveform is DFT-s-OFDM, the modulation method is 256QAM, and the corresponding EVM information is EVM4.

[0256] Table 2

[0257] In some embodiments, different waveform and modulation scheme information pairs correspond to different MPR information.

[0258] In one example, as shown in Table 3, where,

[0259] The waveform is DFT-s-OFDM, the modulation method is 64QAM, and the corresponding EVM information is MPR 1;

[0260] The waveform is DFT-s-OFDM, the modulation method is 256QAM, and the corresponding EVM information is MPR 2;

[0261] The waveform is CP-OFDM, the modulation method is 64QAM, and the corresponding EVM information is MPR3.

[0262] The waveform is DFT-s-OFDM, the modulation method is 256QAM, and the corresponding EVM information is MPR4.

[0263] Table 3

[0264] In step S2104, network device 102 determines whether to perform linear compensation on the first terminal 101.

[0265] In some embodiments, network device 102 determines whether to perform linear compensation on first terminal 101 based on auxiliary information.

[0266] In some embodiments, the network device 102 determines whether to perform linear compensation on the first terminal 101 based on auxiliary information, the current transmit power of the first terminal 101, and channel state information.

[0267] In some embodiments, network device 102 determines to perform linear compensation for the first terminal 101 when at least one of the following four conditions is met:

[0268] The transmitter's nonlinear performance parameters are less than or equal to the first threshold.

[0269] EVM information is greater than or equal to the second threshold;

[0270] MPR information is greater than or equal to the third threshold;

[0271] The current transmit power of the first terminal is greater than or equal to the fourth threshold;

[0272] The channel state information is less than or equal to the fifth threshold.

[0273] In some embodiments, the first threshold is related to the current transmit power of the first terminal 101. In this embodiment, the nonlinear performance parameter corresponds to a 1dB compression point or OIP3.

[0274] In one example, the first threshold is the current transmit power of the first terminal 101.

[0275] In some embodiments, the fourth threshold is a transmitter nonlinear performance parameter.

[0276] In some embodiments, channel state information is signal-to-noise ratio.

[0277] In some embodiments, if any of the above four conditions are not met, the network device 102 determines that no linear compensation will be performed for the first terminal 101.

[0278] In some embodiments, when the PA type is EPT PA, network device 102 determines that no linear compensation is performed for the first terminal 101.

[0279] In one example, when at least one of the above four conditions is met, and the PA type is EPT PA, network device 102 determines that no linear compensation will be performed for the first terminal 101.

[0280] In step S2105, network device 102 determines the linear compensation priority.

[0281] In some embodiments, network device 102 determines linear compensation priority based on PA type.

[0282] In some embodiments, different PA types correspond to different linear compensation priorities.

[0283] In some embodiments, the compensation priorities, from highest to lowest, correspond to: ordinary PA; APT PA; EPT PA.

[0284] In one example, network device 102 prioritizes compensation for terminals of ordinary PAs.

[0285] In step S2106, network device 102 performs linear compensation on the first terminal 101.

[0286] In some embodiments, the network device 102 performs linear compensation on the first terminal 101, which can be replaced by the network device 102 performing linear compensation on the transmitter of the first terminal 101.

[0287] In some embodiments, the network device 102 performs linear compensation on the first terminal 101, which can be replaced by the network device 102 performing linear compensation on the uplink signal of the first terminal 101.

[0288] In some embodiments, when the network device 102 has artificial intelligence capabilities, it performs linear compensation on the first terminal 101 based on the historical transmission information of the first terminal 101.

[0289] In step S2107, network device 102 sends second instruction information to first terminal 101.

[0290] In some embodiments, the second indication information is used to indicate an increase in transmission power.

[0291] In some embodiments, when the linear compensation result meets the first condition, the network device 102 sends a second indication message to the first terminal 101.

[0292] In some embodiments, the linear compensation result satisfies a first condition, including a difference between the following two values ​​that is greater than or equal to a sixth threshold:

[0293] The signal-to-noise ratio of the uplink signal after linear compensation;

[0294] The minimum signal-to-noise ratio of the uplink signal correctly demodulated by network device 102.

[0295] Alternatively, it can be described as follows: The linear compensation result satisfies the first condition including: the difference between the signal-to-noise ratio of the linearly compensated uplink signal and the minimum signal-to-noise ratio of the uplink signal correctly demodulated by the network device 102 is greater than or equal to the sixth threshold.

[0296] In some embodiments, the second indication information is used to indicate an increase in transmission power and a first transmission power.

[0297] In some embodiments, the second indication information includes two fields: one field indicates an increase in transmission power, and the other field indicates a first transmission power.

[0298] In some embodiments, the second indication information is used to indicate an increase in transmit power and a power increment.

[0299] In some embodiments, the second indication information includes two fields: one field indicates an increase in transmission power, and the other field indicates a first transmission power.

[0300] In some embodiments, when the signal-to-noise ratio of the linearly compensated uplink signal is less than a seventh threshold, the network device 102 sends a second indication message to the first terminal 101.

[0301] In step S2108, the first terminal 101 determines the second transmission power.

[0302] In some embodiments, the first terminal 101 determines the second transmit power based on the second indication information, the current transmit power, and the out-of-band suppression information.

[0303] In some embodiments, out-of-band suppression information is the base station's ability to suppress uplink signals that deviate from the operating frequency band.

[0304] In some embodiments, when the second indication information indicates the first transmission power, the determined second transmission power is less than or equal to the first transmission power.

[0305] In some embodiments, when the second indication information indicates a power increment, the difference between the determined second transmit power and the current transmit power is less than or equal to the power increment.

[0306] In step S2109, the first terminal 101 sends an uplink signal to the network device 102 using the second transmit power.

[0307] The method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2109.

[0308] In the method disclosed in this embodiment, at least one of the steps other than step S2104 in steps S2101 to S2109 may be omitted.

[0309] In some embodiments, any two steps in steps S2101 to S2109 may be interchanged.

[0310] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2a.

[0311] In this embodiment of the disclosure, it can be applied to the scenario corresponding to FIG1a. The network device 102 can perform linear compensation on the uplink signal when needed based on the auxiliary information reported by the first terminal 101, thereby enhancing the processing capability of the network device and improving the transmission quality of the uplink.

[0312] Figure 2b is an interactive schematic diagram illustrating a method for transmitting auxiliary information according to an embodiment of the present disclosure. As shown in Figure 2b, the present disclosure relates to a method for transmitting auxiliary information, the method comprising:

[0313] In step S2201, the first terminal 101 sends auxiliary information or transmits signals to the network device 102.

[0314] In some embodiments, the transmit signal may refer to sending an uplink signal for determining auxiliary information.

[0315] In some embodiments, auxiliary information is used to assist network device 102 or second terminal 103 in performing linear compensation on first terminal 101.

[0316] For example, in the scenario of Figure 1a, the first terminal 101 can be a communication transmitter and the network device 102 can be a communication receiver. In the scenario where the first terminal 101 performs power back-off, the auxiliary information can be used by the network device 102 to perform linear compensation on the first terminal 101, that is, to perform linear compensation on the signal received from the first terminal 101 in order to improve the reception quality.

[0317] For example, in the scenarios shown in Figures 1b to 1d, the first terminal 101 can be a communication transmitter, and the network device 102 or the second terminal 103 can be a communication receiver. In the scenario where the first terminal 101 performs power back-off, the auxiliary information can be used by the network device 102 or the second terminal 103 to perform linear compensation on the first terminal 101, that is, to perform linear compensation on the signal received from the first terminal 101 in order to improve the reception quality.

[0318] In some embodiments, the description of the auxiliary information may also refer to the description in the embodiment of Figure 2a. For example, the auxiliary information includes at least one of the following:

[0319] Nonlinear performance parameters of the transmitter of the first terminal;

[0320] At least one vector error magnitude EVM information;

[0321] At least one maximum power backoff (MPR) message;

[0322] Power amplifier PA type.

[0323] The transmitter's nonlinear performance parameters include at least one of the following: 1dB compression point, OIP3, and the index or number of the input-output power curves.

[0324] In one implementation, the first terminal 101 sends auxiliary information to the network device 102. In this implementation, the first terminal 101 does not need to transmit an uplink signal for determining the auxiliary information.

[0325] In this embodiment, the method by which the first terminal 101 reports auxiliary information can be referred to the description in the embodiment of FIG2a, such as reporting in a per-band manner.

[0326] In this embodiment, network device 102 receives auxiliary information reported by first terminal 101.

[0327] In another embodiment, the first terminal 101 may transmit an uplink signal for determining auxiliary information. In this embodiment, the first terminal 101 may not transmit auxiliary information.

[0328] In this embodiment, the network device 102 receives the uplink signal and can analyze the uplink signal to extract auxiliary information of the transmitter of the first terminal 101, such as nonlinear characteristics or nonlinear performance parameters.

[0329] In step S2202, the second terminal 103 sends a request message to the network device 102.

[0330] In some embodiments, the request information is used to request auxiliary information.

[0331] In some embodiments, in conjunction with the scenarios of Figures 1b to 1d, in a D2D or V2X scenario, the second terminal 103 can request auxiliary information corresponding to the first terminal 101 from the network device 102.

[0332] In some embodiments, network device 102 receives the request information and can send auxiliary information to second terminal 103 through step S2203.

[0333] In step S2203, network device 102 sends auxiliary information to second terminal 103.

[0334] In some embodiments, in conjunction with the description of step S2203, the network device 102 may obtain auxiliary information based on the report from the first terminal 101; or, the network device 102 may determine the auxiliary information by analyzing the uplink signal sent by the first terminal 101.

[0335] In some embodiments, the second terminal 103 receives the aforementioned auxiliary information.

[0336] In step S2204, the second terminal 103 determines whether to perform linear compensation on the first terminal 101.

[0337] In some embodiments, the method by which the second terminal 103 determines whether to perform linear compensation on the first terminal 101 can be referred to the implementation of step S2104 in the embodiment of FIG2a.

[0338] In some embodiments, the second terminal 103 supports linear compensation or has linear compensation capability, and can perform linear compensation on the received signal or the receiving end to improve the reception quality.

[0339] In some embodiments, the second terminal 103 determines whether to perform linear compensation on the first terminal 101 based on auxiliary information.

[0340] In the first example, after receiving auxiliary information, the second terminal 103 can determine to perform linear compensation on the first terminal 102 if any item in the auxiliary information exceeds the corresponding threshold. For example, if the EVM information or EVM value is greater than a preset threshold such as a second threshold, or if the MPR information or MPR value is greater than a preset threshold such as a third threshold, the second terminal 103 can determine to perform linear compensation on the first terminal 101.

[0341] In some embodiments, the second terminal 103 determines whether to perform linear compensation on the first terminal 101 based on auxiliary information, the current transmit power of the first terminal 101, and channel state information.

[0342] In the second example, after receiving auxiliary information, the second terminal 103 determines to perform linear compensation on the first terminal 101 when any of the following conditions are met: any item in the auxiliary information exceeds the corresponding threshold; the second terminal 103 detects that the channel state information is less than or equal to a certain threshold, such as the fifth threshold; or the current transmit power of the first terminal 101 exceeds the fourth threshold.

[0343] The fourth threshold can be a 1dB compression point. If the current transmit power of the first terminal 101 exceeds the 1dB compression point, the second terminal 103 can determine to perform linear compensation on the first terminal 101.

[0344] In this example, if the first example above is met, or if the current transmit power of the first terminal 101 exceeds the 1dB compression point, or if the second terminal 103 detects that the signal-to-noise ratio is less than the fifth threshold, the second terminal 103 can determine to perform linear compensation on the first terminal 101.

[0345] In some embodiments, the threshold size involved in the second terminal 103 in performing step S2204, such as a second threshold, a third threshold, a fourth threshold, or a fifth threshold, may be determined by the second terminal 103 itself, configured by the network device 102, or defined by the protocol.

[0346] In some embodiments, the terminal 103 may also determine whether to perform linear compensation based on the PA type of the first terminal 101, as can be seen in the implementation of steps S2104 or S2105 in FIG2a.

[0347] In step S2205, the second terminal 103 performs linear compensation on the first terminal 101.

[0348] In some embodiments, the implementation of step S2205 can refer to the relevant implementation of step S2106 in FIG2a.

[0349] In some embodiments, the second terminal 103, as a communication receiver, can perform linear compensation on the signal or transmitter transmitted by the first terminal 101 so that it can still receive signals with high quality even when the first terminal 101 performs power back-off.

[0350] In some embodiments, the second terminal 103 may perform linear compensation based on AI or machine learning.

[0351] In step S2206, the second terminal 103 sends a second instruction message to the first terminal 101.

[0352] In some embodiments, the second indication information is used to indicate power boosting. For example, the second indication information can be used to indicate whether the first terminal 101 should boost its transmission power, or to indicate whether the first terminal 101 is allowed to boost its transmission power.

[0353] Optionally, the second terminal 103 can send a second instruction message via enablepowerboosting, that is, to instruct the first terminal 101 whether to perform power boosting via enablepowerboosting.

[0354] In some embodiments, in conjunction with the scenario shown in FIG1c, the second terminal 103 can directly send the second instruction information to the first terminal 101.

[0355] In some embodiments, in conjunction with the scenario shown in FIG1d, the second terminal 103 can send second instruction information to the first terminal 101 through the network device 102. For example, if the second terminal 103 needs to send second instruction information after performing linear compensation, it can send the second instruction information to the network device 102, and the network device 102 will forward the second instruction information to the first terminal 101.

[0356] In some embodiments, the second terminal 103 may determine whether to send a second instruction message based on the result of linear compensation, or whether to instruct the first terminal 101 to perform linear compensation through the second instruction message.

[0357] For example, if the linear compensation result meets the first condition, the second terminal 103 sends a second instruction message to the first terminal 101, allowing the first terminal 101 to perform power boost.

[0358] The first condition can be referred to the description of step S2107 in the embodiment of Figure 2a, or the first condition is that the uplink signal-to-noise ratio of the first terminal 101 is poor. The second terminal 103 will only send a second indication message allowing power boosting to the first terminal 101 when it detects that the uplink signal-to-noise ratio of the first terminal 101 is poor.

[0359] In some embodiments, when instructing the first terminal 101 to perform a power boost, the second terminal 103 may also instruct the first terminal 101 to meet a threshold or limit that needs to be satisfied for the power boost.

[0360] In one example, the second instruction information is also used to indicate at least one of the following:

[0361] First transmission power;

[0362] Power increment.

[0363] In this example, the descriptions of the two parameters can be found in the description of step S2107 in the embodiment of Figure 2a. For example, the first transmit power is used to indicate that the transmit power of the first terminal 101 after power enhancement cannot exceed the first transmit power. As another example, the power increment is used to indicate that the power enhancement value of the first terminal 101 after power enhancement cannot exceed the power increment.

[0364] Alternatively, the two parameters indicated in the second indication information can indicate the maximum value of the power boost performed by the first terminal 101.

[0365] In some embodiments, the first terminal 101 receives the aforementioned second instruction information.

[0366] In step S2207, the first terminal 101 sends an uplink signal to the second terminal 103 using the second transmit power.

[0367] In some embodiments, the first terminal 101 may determine the second transmission power based on the second indication information. For example, the second transmission power should be less than or equal to the first transmission power. Alternatively, the difference between the second transmission power and the current transmission power of the first terminal 101 may be less than or equal to the power increment.

[0368] In some embodiments, the first terminal 101 may determine the second transmit power based on the second indication information, the current transmit power, and the out-of-band suppression information. Refer to the implementation of step S2108 in FIG2a. For example, the out-of-band suppression information is the first terminal 101's ability to suppress uplink signals that deviate from its operating frequency band.

[0369] The method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2207.

[0370] In some embodiments, step S2202 is optional and can be replaced by one or more steps in other embodiments. For example, in D2D or V2X scenarios, network device 102 can actively share the auxiliary information after obtaining it without requiring a request from the second terminal 103.

[0371] In some embodiments, at least one of steps S2204 to S2205 is optional and can be replaced by one or more steps in other embodiments. For example, in the embodiment of FIG2a, the network device 102 may perform linear compensation; or, the second terminal 103 and the network device 102 may each perform linear compensation.

[0372] In some embodiments, step S2206 is optional and can be replaced by one or more steps in other embodiments. For example, in conjunction with the embodiment of FIG2a, the second instruction information can be directly issued by the network device 102.

[0373] In some embodiments, step S2207 is optional and can be replaced by one or more steps in other embodiments. For example, in conjunction with the embodiment of FIG2a, the first terminal 101 can send an uplink signal to the network device 102, or send uplink signals to the network device 102 and the second terminal 103 respectively.

[0374] In some embodiments, the different steps in steps S2201 to S2207 are not limited in execution order, or their order can be interchanged. For example, the order of steps S2201 and S2202 can be interchanged.

[0375] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG2b.

[0376] In this embodiment of the disclosure, it can be applied to the D2D or V2X scenarios corresponding to Figures 1b to 1d. The network device 102 can share the auxiliary information received or determined by itself with other devices such as the second terminal 103, so that the second terminal 103 can perform linear compensation on the uplink signal of the first terminal 101 and improve the reception quality.

[0377] Figure 3a is a flowchart illustrating a method for transmitting auxiliary 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 auxiliary information, executed by a first terminal 101, the method including:

[0378] In step S3101, the first terminal 101 receives the first instruction information sent by the network device 102.

[0379] In some embodiments, the implementation of step S3101 can refer to the implementation of step S2101, and will not be repeated here.

[0380] In step S3102, the first terminal 101 determines the waveform and modulation method.

[0381] In some embodiments, the implementation of step S3102 can be referred to the implementation of step S2102, and will not be repeated here.

[0382] In step S3103, the first terminal 101 sends auxiliary information to the network device 102.

[0383] In some embodiments, the implementation of step S3103 can refer to the implementation of step S2103, and will not be repeated here.

[0384] In step S3104, the first terminal 101 receives the second instruction information sent by the network device 102.

[0385] In some embodiments, the implementation of step S3104 can refer to the implementation of step S2107, and will not be repeated here.

[0386] In step S3105, the first terminal 101 determines the second transmission power.

[0387] In some embodiments, the implementation of step S3105 can refer to the implementation of step S2108, and will not be repeated here.

[0388] In step S3106, the first terminal 101 sends an uplink signal to the network device 102 using the second transmit power.

[0389] In some embodiments, the implementation of step S3106 can be referred to the implementation of step S2109, and will not be repeated here.

[0390] The method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3106.

[0391] In the method disclosed in this embodiment, at least one of the steps other than step S3103 in steps S3101 to S3106 may be omitted.

[0392] In some embodiments, any two steps in steps S3101 to S3106 may be interchanged.

[0393] Figure 3b is a flowchart illustrating a method for transmitting auxiliary 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 auxiliary information, executed by a first terminal 101, the method including:

[0394] Step S3201: Send auxiliary information or transmit signals to network device 102.

[0395] In some embodiments, the implementation of step S3201 can be found in the implementation of step S2201 in FIG2b, and will not be repeated here.

[0396] Step S3202: Receive the second instruction information sent by the second terminal 103.

[0397] In some embodiments, the implementation of step S3202 can be referred to the implementation of step S2206 in FIG2b, and will not be repeated here.

[0398] Step S3203: Use the second transmit power to send an uplink signal to the second terminal 103.

[0399] In some embodiments, the implementation of step S3203 can be referred to the implementation of step S2207 in FIG2b, and will not be repeated here.

[0400] The method involved in the embodiments of this disclosure may include at least one of steps S3201 to S3203.

[0401] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG3b.

[0402] Figure 3c is a flowchart illustrating a method for transmitting auxiliary 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 auxiliary information, executed by a first terminal 101, the method including:

[0403] Step S3301: Send auxiliary information or transmit signals to network device 102.

[0404] In some embodiments, the implementation of step S3301 can be found in the implementation of step S2101 in FIG2a or step S2201 in FIG2b, and will not be repeated here.

[0405] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG3c.

[0406] Figure 4a is a flowchart illustrating a method for transmitting auxiliary 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 transmitting auxiliary information, executed by a network device 102, the method including:

[0407] In step S4101, network device 102 sends first instruction information to first terminal 101.

[0408] In some embodiments, the implementation of step S4101 can refer to the implementation of step S2101, and will not be repeated here.

[0409] In step S4102, network device 102 receives auxiliary information sent by first terminal 101.

[0410] In some embodiments, the implementation of step S4102 can refer to the implementation of step S2103, and will not be repeated here.

[0411] In step S4103, network device 102 determines whether to perform linear compensation on the first terminal 101.

[0412] In some embodiments, the implementation of step S4103 can refer to the implementation of step S2104, and will not be repeated here.

[0413] In step S4104, network device 102 determines the linear compensation priority.

[0414] In some embodiments, the implementation of step S4104 can refer to the implementation of step S2105, and will not be repeated here.

[0415] In step S4105, network device 102 performs linear compensation on the first terminal 101.

[0416] In some embodiments, the implementation of step S4105 can refer to the implementation of step S2106, and will not be repeated here.

[0417] In step S4106, network device 102 sends second instruction information to first terminal 101.

[0418] In some embodiments, the implementation of step S4106 can refer to the implementation of step S2107, and will not be repeated here.

[0419] In step S4107, network device 102 receives the uplink signal sent by first terminal 101.

[0420] In some embodiments, the implementation of step S4107 can be referred to the implementation of step S2109, and will not be repeated here.

[0421] The method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4107.

[0422] In the method disclosed in this embodiment, at least one of the steps other than step S4102 in steps S4101 to S4107 may be omitted.

[0423] In some embodiments, any two steps in steps S4101 to S4108 may be interchanged.

[0424] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG4a.

[0425] Figure 4b is a flowchart illustrating a method for transmitting auxiliary 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 transmitting auxiliary information, executed by a network device 102, the method including:

[0426] Step S4201: Receive auxiliary information or receive a transmission signal from the first terminal 101 for determining auxiliary information.

[0427] In some embodiments, the implementation of step S4101 can be referred to the implementation of step S2201 in FIG2b, and will not be repeated here.

[0428] Step S4202: Receive request information sent by the second terminal 103.

[0429] In some embodiments, the implementation of step S4102 can be found in the implementation of step S2202 in FIG2b, and will not be repeated here.

[0430] Step S4203: Send auxiliary information to the second terminal 103.

[0431] In some embodiments, the implementation of step S4103 can be found in the implementation of step S2203 in FIG2b, and will not be repeated here.

[0432] The method involved in the embodiments of this disclosure may include at least one of steps S4201 to S4203.

[0433] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG4b.

[0434] Figure 4c is a flowchart illustrating a method for transmitting auxiliary 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 transmitting auxiliary information, executed by a network device 102, the method including:

[0435] Step S4301: Receive auxiliary information or transmission signal sent by the first terminal 101.

[0436] In some embodiments, the implementation of step S4301 can be found in the implementation of step S2101 in FIG2a or step S2201 in FIG2b, and will not be repeated here.

[0437] In some embodiments, other optional implementations may be described before or after the specification corresponding to FIG4c.

[0438] Figure 5a is a flowchart illustrating a method for transmitting auxiliary information according to an embodiment of the present disclosure. As shown in Figure 5a, this embodiment of the present disclosure relates to a method for transmitting auxiliary information, executed by a second terminal 103, the method including:

[0439] Step S5101: Send request information to network device 102.

[0440] In one embodiment, the implementation of step S5101 can be found in the implementation of step S2202 in Figure 2b, and will not be repeated here.

[0441] Step S5102: Receive auxiliary information sent by network device 102.

[0442] In one embodiment, the implementation of step S5102 can be found in the implementation of step S2203 in Figure 2b, and will not be repeated here.

[0443] Step S5103: Determine whether to perform linear compensation on the first terminal 101.

[0444] In one embodiment, the implementation of step S5103 can be found in the implementation of step S2204 in Figure 2b, and will not be repeated here.

[0445] Step S5104: Perform linear compensation on the first terminal 101.

[0446] In one embodiment, the implementation of step S5104 can be found in the implementation of step S2205 in Figure 2b, and will not be repeated here.

[0447] Step S5105: Send the second instruction information to the first terminal 101.

[0448] In one embodiment, the implementation of step S5105 can be found in the implementation of step S2206 in Figure 2b, and will not be repeated here.

[0449] Step S5106: Receive the uplink signal sent by the first terminal 101.

[0450] In one embodiment, the implementation of step S5106 can be found in the implementation of step S2207 in Figure 2b, and will not be repeated here.

[0451] The method involved in the embodiments of this disclosure may include at least one of steps S5101 to S5106.

[0452] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG5a.

[0453] Figure 5b is a flowchart illustrating a method for transmitting auxiliary information according to an embodiment of the present disclosure. As shown in Figure 5b, this embodiment of the present disclosure relates to a method for transmitting auxiliary information, executed by a second terminal 103, the method including:

[0454] Step S5201: Receive auxiliary information sent by network device 102.

[0455] In one embodiment, the implementation of step S5201 can be found in the implementation of step S2203 in Figure 2b, and will not be repeated here.

[0456] In some embodiments, other alternative implementations may be described before or after the specification corresponding to FIG5b.

[0457] In this embodiment of the disclosure, when the first terminal 101 involves power back-off, the receiving device, such as network device 102 or the second terminal 103, can perform linear compensation on the first terminal 101, thereby improving the uplink reception quality. To facilitate understanding of this embodiment, some specific embodiments are listed below.

[0458] Example 1: As shown in the scenario of Figure 1a, network device 102 performs linear compensation on the first terminal 101.

[0459] In this embodiment, after the first terminal establishes a connection with the base station, the first terminal reports auxiliary information to the base station, or the first terminal is requested by the base station to report auxiliary information. The auxiliary information includes at least one of the following:

[0460] Nonlinear parameters: such as power information corresponding to the 1dB compression point, 3rd order truncation OIP3, etc.

[0461] EVM information can further include EVM information corresponding to different waveforms and different modulation methods;

[0462] Maximum power backoff (MPR) information, such as the maximum power backoff value under a certain waveform and modulation scheme;

[0463] PA types, such as: ordinary, APT, EPT, etc.;

[0464] After receiving the aforementioned auxiliary information, the base station determines whether to initiate linear compensation for the first terminal based on its current transmit power and channel status. The base station can also determine, based on the compensation results, whether to allow the first terminal to increase its power, or to provide the first terminal with the maximum threshold for a possible power increase.

[0465] The implementation of Example 1 can be seen in the following examples:

[0466] Example 1.1:

[0467] After the first terminal establishes a connection with the base station, the first terminal reports auxiliary information to the base station, and the auxiliary information includes at least one of the following:

[0468] (1) Nonlinear parameters: such as power information corresponding to the 1dB compression point, 3rd order truncation OIP3, etc.

[0469] (2) EVM information, which may further include EVM information corresponding to different waveforms and different modulation methods.

[0470] (3) Maximum power back-off value (MPR) information, such as the maximum power back-off value under a certain waveform and a certain modulation method.

[0471] (4) PA type, such as: ordinary, APT, EPT, etc.

[0472] The auxiliary information can be reported separately according to different frequency bands, i.e., per band.

[0473] In another embodiment, the first terminal only reports auxiliary information to the base station when the base station requests the first terminal to report auxiliary information.

[0474] When reporting EVM information, in one embodiment, the base station and UE can agree on which waveform and modulation scheme's EVM value to report, such as the EVM value corresponding to DFT-s-OFDM and 64QAM. In another embodiment, multiple waveforms and multiple different high-order modulation schemes' EVM information can be reported, as shown in Tables 1 to 3.

[0475] When reporting Maximum Power Backoff (MPR) information, in one embodiment, the base station and UE can agree on which waveform and modulation scheme to report the MPR value. For example, the MPR values ​​corresponding to DFT-s-OFDM and 64QAM.

[0476] After receiving the aforementioned auxiliary information, the base station determines whether to initiate linear compensation for the first terminal based on the first terminal's current transmit power and channel status. For example, in one embodiment, if a certain auxiliary information reported by the first terminal exceeds a certain threshold (such as the current power exceeding a 1dB compression point, or the reported EVM value exceeding a preset threshold, or the maximum power backoff value (MPR) exceeding a preset threshold) and the base station detects that the signal-to-noise ratio is less than a certain threshold, then it is considered necessary to initiate linear compensation for the first terminal. The specific thresholds are determined by each base station.

[0477] Alternatively, if the reported auxiliary information is of PA type, the base station can apply different priority compensation strategies based on the PA type. For example, compensation is preferred for a normal PA, while no compensation is preferred for an ET PA. The compensation priority, from highest to lowest, can be set as: normal PA, APT PA, ET PA type.

[0478] In another embodiment, if the base station has inherent AI capabilities, it can further perform linear compensation on the first terminal based on the first terminal's past transmission information.

[0479] Example 1.2:

[0480] After receiving the aforementioned auxiliary information, the base station determines whether to initiate linear compensation for the first terminal based on its current transmit power and channel status. Based on the compensation results, it then determines whether to allow the first terminal to perform power boosting. If allowed, the base station instructs the first terminal to perform power boosting, for example, by enabling power boosting.

[0481] In one embodiment, the base station only sends a power boosting permission message to the first terminal when it detects that the uplink signal-to-noise ratio of the first terminal is poor.

[0482] Example 1.3:

[0483] After receiving the aforementioned auxiliary information, the base station determines whether to initiate linear compensation for the first terminal based on its current transmit power and channel status. Based on the compensation outcome, it then sends feedback to the first terminal regarding the maximum threshold for potential power enhancement.

[0484] After receiving the threshold from the base station, the first terminal determines the final power boosting value based on its current transmit power and its own out-of-band suppression. The final power boosting value must be less than or equal to the threshold.

[0485] In one embodiment, the base station only transmits power boosting threshold information to the first terminal when it detects that the uplink signal-to-noise ratio of the first terminal is poor.

[0486] Example 2: As shown in Figures 1b to 1d, network device 102 can share auxiliary information with other devices, and network device 102 or second terminal 103 can perform linear compensation on first terminal 101.

[0487] In this embodiment, the second terminal sends first information to the network device (base station) to request auxiliary information from the first terminal, and the network device feeds back the auxiliary information from the first terminal to the second terminal.

[0488] The auxiliary information base station of the first terminal can extract the nonlinear characteristic information of the first terminal by analyzing and processing the transmitted signal of the first terminal, or based on the report of the first terminal.

[0489] Based on the auxiliary information received from the first terminal from the first network, and considering the first terminal's current transmit power and channel status, the second terminal determines whether to initiate linear compensation for the first terminal. The second terminal or the base station can also, based on the compensation results, determine whether to allow the first terminal to increase its power, or provide feedback to the first terminal regarding the maximum threshold for potential power increases.

[0490] The implementation of Example 2 can be referred to in the following examples:

[0491] Example 2.1:

[0492] The second terminal sends first information to the network device (base station) to request auxiliary information from the first terminal, and the network device sends the auxiliary information from the first terminal back to the second terminal.

[0493] The second terminal sends first information to the first network to request auxiliary information from itself. The second terminal has its own compensation capability. In one embodiment, the auxiliary information of the first terminal refers to the nonlinear characteristic information of the first terminal that the base station can extract by analyzing and processing the transmitted signal of the first terminal, and may include at least one of the following:

[0494] (1) Nonlinear curve indication: In one embodiment, a lookup table can be used, such as pre-defining different input and output curves and numbering them. The base station can predict the most similar curve of the terminal by analyzing the characteristics of the terminal's transmitted signal and determine the number.

[0495] (2) Nonlinear characteristic parameters: such as power information corresponding to the 1dB compression point, 3rd order truncation OIP3, etc.

[0496] (3) EVM information, which may further include EVM information corresponding to different waveforms and different modulation methods.

[0497] (4) Maximum power back-off value (MPR) information, such as the maximum power back-off value under a certain waveform and a certain modulation method.

[0498] Based on the auxiliary information received from the first terminal, the second terminal determines whether to initiate linear compensation for that terminal according to the first terminal's current transmit power and channel status. For example, in one embodiment, if a certain auxiliary information of the first terminal exceeds a certain threshold (such as the current power exceeding a 1dB compression point, or the EVM value exceeding a preset threshold, or the maximum power backoff value (MPR) exceeding a preset threshold), and / or the base station detects that the signal-to-noise ratio is less than a certain threshold, then it is considered that linear compensation for the first terminal needs to be initiated. The specific thresholds are determined by each second terminal itself.

[0499] Example 2.2:

[0500] The second terminal sends first information to the first network device (base station) to request auxiliary information from the first terminal, and the first network device sends the auxiliary information from the first terminal back to the second terminal.

[0501] The second terminal sends first information to the first network to request auxiliary information from itself. The second terminal has its own compensation capability. In another embodiment, the base station obtains the auxiliary information from the first terminal through reporting by the first terminal.

[0502] Once the first terminal establishes a connection with the base station, the terminal reports auxiliary information to the base station, and the auxiliary information includes at least one of the following:

[0503] (1) Nonlinear curve indication: In one embodiment, a lookup table can be used, such as pre-defining different input and output curves and numbering them. The base station can predict the most similar curve of the terminal by analyzing the characteristics of the terminal's transmitted signal and determine the number.

[0504] (2) Nonlinear characteristic parameters: such as power information corresponding to the 1dB compression point, 3rd order truncation OIP3, etc.

[0505] (3) EVM information, which may further include EVM information corresponding to different waveforms and different modulation methods.

[0506] (4) Maximum power back-off value (MPR) information, such as the maximum power back-off value under a certain waveform and a certain modulation method.

[0507] Auxiliary information can be reported separately according to different frequency bands, i.e., per band.

[0508] Example 2.3:

[0509] After receiving the aforementioned auxiliary information, the second terminal determines whether to initiate linear compensation for the first terminal based on the first terminal's current transmit power and channel status. Based on the compensation situation, it determines whether to allow the first terminal to perform power boosting. If allowed, it instructs the first terminal to perform power boosting, for example, by enabling power boosting. In one embodiment, the second terminal can directly send information to the first terminal (applicable to the scenario in Figure 1c). In another embodiment, it can instruct the first terminal through a network device, i.e., a base station (applicable to both scenarios in Figure 1c and Figure 1d).

[0510] In one embodiment, the second terminal only sends a power boosting permission message to the first terminal when it detects that the uplink signal-to-noise ratio of the first terminal is poor.

[0511] Example 2.4:

[0512] After receiving the aforementioned auxiliary information, the second terminal determines whether to initiate linear compensation for the first terminal based on the first terminal's current transmit power and channel status. Based on the compensation outcome, it then feeds back to the first terminal the maximum threshold for potential power enhancement. In one embodiment, the second terminal can directly send feedback to the first terminal; in another embodiment, it can do so through a network device, i.e., a base station.

[0513] After receiving the threshold from the second terminal, the first terminal determines the final power boosting value based on its current transmit power and its own out-of-band suppression. The final power boosting value must be less than or equal to the threshold.

[0514] In one implementation, the second terminal only sends a power boosting permission message to the first terminal when it detects that the uplink signal-to-noise ratio of the first terminal is poor.

[0515] 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.

[0516] 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). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of 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.

[0517] 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).

[0518] Figure 6a is a schematic diagram of the structure of a first terminal according to an embodiment of this disclosure. As shown in Figure 6a, the first terminal 6100 may include at least one of a transceiver module 6101, a processing module 6102, etc. In some embodiments, the transceiver module 6101 is used to send auxiliary information to a network device, the auxiliary information being used to assist in linear compensation of the first terminal.

[0519] Optionally, the transceiver module 6101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the first terminal 101 in any of the above methods, which will not be described in detail here. Optionally, the processing module 6102 is used to perform at least one of the other steps performed by the first terminal 101 in any of the above methods, which will not be described in detail here.

[0520] Figure 6b is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. As shown in Figure 6b, the network device 6200 may include at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, when the network device 6200 is a network device, the transceiver module 6201 is used to receive auxiliary information sent by a first terminal; or, the processing module 6202 is used to determine the auxiliary information based on the transmission signal of the first terminal; wherein, the auxiliary information is used to assist in linear compensation of the first terminal.

[0521] Optionally, the transceiver module 6201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device in any of the above methods, which will not be described in detail here. Optionally, the processing module 6202 is used to perform at least one of the other steps performed by the network device 102 in any of the above methods, which will not be described in detail here.

[0522] Figure 6c is a schematic diagram of the structure of the second terminal proposed in an embodiment of this disclosure. As shown in Figure 6c, the second terminal 6300 may include at least one of a transceiver module 6301, a processing module 6302, etc. In some embodiments, the transceiver module 6301 is used to receive auxiliary information sent by a network device. The auxiliary information is used to assist in linear compensation of the first terminal. The auxiliary information is received by the network device from the first terminal or determined by the network device based on the transmission signal of the first terminal.

[0523] 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.

[0524] 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.

[0525] Figure 7a is a schematic diagram of the structure of the communication device 7100 proposed in an embodiment of this disclosure. The communication device 7100 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 7100 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.

[0526] As shown in Figure 7a, the communication device 7100 includes one or more processors 7101. The processor 7101 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 7100 can be used to execute any of the above methods. Optionally, one or more processors 7101 can be used to invoke instructions to cause the communication device 7100 to execute any of the above methods.

[0527] In some embodiments, the communication device 7100 further includes one or more transceivers 7102. When the communication device 7100 includes one or more transceivers 7102, the transceiver 7102 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 7101 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, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0528] In some embodiments, the communication device 7100 further includes one or more memories 7103 for storing data. Optionally, all or part of the memories 7103 may be located outside the communication device 7100. In optional embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuits 7104 are connected to the memories 7103 and can be used to receive data from the memories 7103 or other devices, and to send data to the memories 7103 or other devices. For example, the interface circuits 7104 can read data stored in the memories 7103 and send the data to the processor 7101.

[0529] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. 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.; (7) others, etc.

[0530] Figure 7b is a schematic diagram of the structure of the chip 7200 proposed in an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the chip 7200 shown in Figure 7b, but it is not limited thereto.

[0531] Chip 7200 includes one or more processors 7201. Chip 7200 is used to perform any of the above methods.

[0532] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 7200 further includes one or more memories 7203 for storing data. Optionally, all or part of the memories 7203 may be located outside chip 7200. Optionally, interface circuit 7202 is connected to memory 7203, and interface circuit 7202 can be used to receive data from memory 7203 or other devices, and interface circuit 7202 can be used to send data to memory 7203 or other devices. For example, interface circuit 7202 can read data stored in memory 7203 and send the data to processor 7201.

[0533] In some embodiments, the interface circuit 7202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 7202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 7202 performs data interaction between the processor 7201, the chip 7200, the memory 7203, or the transceiver device. In some embodiments, the processor 7201 performs at least one of the other steps.

[0534] 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.

[0535] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 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.

[0536] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0537] 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

[0538] The first terminal can report auxiliary information to the network device. Based on the received or self-determined auxiliary information, the network device can obtain reference information for linear compensation. Thus, the network device can perform linear compensation on the signal transmitted by the first terminal at an appropriate time, or the network device can share the auxiliary information with other terminals for linear compensation, thereby improving the reception quality or transmission quality of the signal transmitted by the first terminal.

Claims

1. A method for reporting assistance information, performed by a first terminal, comprising: sending assistance information to a network device, the assistance information being used for assisting linear compensation of the first terminal.

2. The method of claim 1, wherein, The assistance information comprises at least one of: a non-linear performance parameter of a transmitter of the first terminal; at least one vector error magnitude (EVM) information; at least one maximum power reduction (MPR) information; a power amplifier (PA) type.

3. The method of claim 2, wherein, The non-linear performance parameter comprises at least one of: an index or a number of an input-output power curve; a 1 dB compression point; an output third-order intercept point (OIP3). 4.The method of claim 2, wherein: different EVM information corresponds to different waveforms and different modulation modes; different MPR information corresponds to different waveforms and different modulation modes.

5. The method of any one of claims 1 to 4, wherein, The sending of the assistance information to the network device comprises: sending the assistance information to the network device in a frequency band unit.

6. The method of any one of claims 1 to 5, wherein, Before the sending of the assistance information to the network device, the method further comprises: receiving first indication information sent by the network device, the first indication information being used for indicating the first terminal to send the assistance information to the network device.

7. The method of any one of claims 1 to 6, wherein, The method further comprises: receiving second indication information sent by the network device or second indication information sent by a second terminal, the second indication information being used for indicating to increase a transmission power.

8. The method of claim 7, wherein, The second indication information is further used for indicating at least one of: a first transmission power; a power increment.

9. The method of claim 8, wherein, The method further comprises: determining a second transmission power according to the second indication information, a current transmission power and out-of-band suppression information, the second transmission power being less than or equal to the first transmission power, or a difference between the second transmission power and the current transmission power being less than or equal to the power increment. 10.A method for receiving assistance information, performed by a network device, comprising: receiving assistance information sent by a first terminal or determining the assistance information according to a transmission signal of the first terminal, the assistance information being used for assisting linear compensation of the first terminal.

11. The method of claim 10, wherein, The method further comprises: sending the assistance information to a second terminal.

12. The method of claim 11, wherein, The method further comprises: receiving request information of the second terminal, the request information being used for requesting the assistance information.

13. The method of any one of claims 10 to 12, wherein, The assistance information comprises at least one of: a non-linear performance parameter of a transmitter of the first terminal; at least one vector error magnitude (EVM) information; at least one maximum power reduction (MPR) information; a power amplifier (PA) type.

14. The method of claim 13, wherein, The non-linear performance parameter comprises at least one of: an index or a number of an input-output power curve; a 1 dB compression point; an output third-order intercept point (OIP3). 15.The method of claim 13, wherein: different EVM information corresponds to different waveforms and different modulation modes; different MPR information corresponds to different waveforms and different modulation modes.

16. The method of any one of claims 10 to 15, wherein, The receiving of the assistance information sent by the first terminal comprises: receiving the assistance information in a frequency band unit.

17. The method of any one of claims 10 to 16, wherein, Before the receiving of the assistance information sent by the first terminal, the method further comprises: sending first indication information to the first terminal, the first indication information being used to instruct the first terminal to send the assistance information to the network device.

18. The method of any one of claims 10 to 17, wherein, The method further includes: determining whether to perform linear compensation on the first terminal according to the assistance information.

19. The method of claim 18, wherein, The determining whether to perform linear compensation on the first terminal according to the assistance information includes: determining whether to perform linear compensation on the first terminal according to the assistance information, current transmit power of the first terminal and channel state information.

20. The method of claim 19, wherein, The determining whether to perform linear compensation on the first terminal according to the assistance information, current transmit power of the first terminal and channel state information includes: determining to perform linear compensation on the first terminal when at least one of the following conditions is met: the transmitter nonlinearity performance parameter is less than or equal to a first threshold value; the EVM information is greater than or equal to a second threshold value; the MPR information is greater than or equal to a third threshold value; the current transmit power of the first terminal is greater than or equal to a fourth threshold value; the channel state information is less than or equal to a fifth threshold value.

21. The method of any one of claims 10 to 20, wherein, The method further includes: performing linear compensation on the first terminal according to historical transmit information of the first terminal when the network device has artificial intelligence capability.

22. The method of any one of claims 10 to 21, wherein, The method further includes: determining a linear compensation priority according to the PA type, wherein different PA types correspond to different linear compensation priorities.

23. The method of any one of claims 10 to 22, wherein, The method further includes: performing linear compensation on the first terminal; sending second indication information to the first terminal when a result of the linear compensation meets a first condition, the second indication information being used to instruct power boosting.

24. The method of claim 23, wherein, The linear compensation result meets the first condition includes: a difference between the following two is greater than or equal to a sixth threshold value: a signal-to-noise ratio of the uplink signal after linear compensation; a minimum signal-to-noise ratio at which the network device correctly demodulates the uplink signal.

25. The method of claim 24, wherein, The sending second indication information to the first terminal includes: sending second indication information to the first terminal when the signal-to-noise ratio of the uplink signal after linear compensation is less than a seventh threshold value.

26. The method of claim 25, wherein, The second indication information is further used to instruct at least one of the following: a first transmit power; a power increment. 27.A method of receiving assistance information, performed by a second terminal, comprising: receiving assistance information sent by a network device, the assistance information being used to assist linear compensation on a first terminal, wherein the assistance information is received by the network device from the first terminal or determined by the network device according to a transmit signal of the first terminal.

28. The method of claim 27, wherein, The method further includes: sending request information to the network device, the request information being used to request the assistance information.

29. The method of claim 27 or 28, wherein, The assistance information includes at least one of the following: a nonlinearity performance parameter of a transmitter of the first terminal; at least one vector error magnitude (EVM) information; at least one maximum power reduction (MPR) information; a power amplifier (PA) type. 30.The method of claim 29, wherein the nonlinearity performance parameter includes at least one of the following: an index or number of an input-output power curve; a 1 dB compression point; an output third-order intercept point (OIP3). 31.The method of claim 29, wherein Different EVM information corresponds to different waveforms and different modulation modes; Different MPR information corresponds to different waveforms and different modulation modes.

32. The method of any one of claims 27-31, wherein, The assistance information is in units of frequency bands.

33. The method of any one of claims 27 to 32, wherein, The method further comprises: According to the assistance information, determining whether to perform linear compensation on the first terminal.

34. The method of claim 33, wherein, The method further comprises: sending second indication information to the first terminal; or, sending second indication information to the network device, and sending the second indication information to the first terminal through the network device; The second indication information is used to indicate power boosting.

35. The method of claim 34, wherein, The second indication information is also used to indicate at least one of the following: The first transmit power; The power increment.

36. The method of any one of claims 27-35, wherein, The second terminal has linear compensation capability.

37. A first terminal, comprising: a transceiver module, configured to send assistance information to a network device, the assistance information being used to assist linear compensation on the first terminal.

38. A network device, comprising: a transceiver module, configured to receive assistance information sent by a first terminal; or, a processing module, configured to determine the assistance information according to a transmit signal of the first terminal; The assistance information is used to assist linear compensation on the first terminal.

39. A second terminal, comprising: a transceiver module, configured to receive assistance information sent by a network device, the assistance information being used to assist linear compensation on a first terminal, wherein the assistance information is received by the network device from the first terminal, or determined by the network device according to a transmit signal of the first terminal.

40. A communication system, comprising: a first terminal and a network device, or the communication system comprises the first terminal, the network device and a second terminal; The first terminal is configured to implement the method of any one of claims 1-9; The network device is configured to implement the method of any one of claims 10-26; The second terminal is configured to implement the method of any one of claims 27-36.

41. A communication device, comprising: one or more processors; The communication device is configured to implement the method of any one of claims 1-9, any one of claims 10-26, or any one of claims 27-36.

42. A storage medium, the storage medium storing instructions, wherein, When the instructions run on a communication device, the communication device executes the method of any one of claims 1-9, any one of claims 10-26, or any one of claims 27-36.

43. A program product, wherein, When the program product is executed by a communication device, the communication device executes the method of any one of claims 1-9, any one of claims 10-26, or any one of claims 27-36.

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