CN113328966B

CN113328966B - Method and device for transmitting information

Info

Publication number: CN113328966B
Application number: CN202010128125.8A
Authority: CN
Inventors: 刘乔; 何佳; 曾昆
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2023-07-07
Anticipated expiration: 2040-02-28
Also published as: CN113328966A

Abstract

The application provides a method and a device for transmitting information, wherein a first indication information sent by a sending end to a receiving end indicates the position of at least one reduced symbol and at least one scaling parameter for processing the at least one symbol, so that the receiving end can determine at least one symbol to be recovered according to the position of the at least one symbol and recover the reduced at least one symbol according to the at least one scaling parameter when recovering data, thereby better recovering the data, avoiding distortion and being beneficial to improving the system performance.

Description

Method and device for transmitting information

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for transmitting information in the field of communications.

Background

In the communication field, peak-to-average power ratio (peak to average power ratio, PAPR) is generally one of important indexes for measuring radio frequency modules, and the larger the PAPR is, the serious distortion is caused when a signal passes through a nonlinear component (such as a nonlinear amplifier), so that the system performance is reduced; the smaller the PAPR, the smaller the distortion and the better the system performance when the signal passes through the nonlinear component. It is therefore necessary to improve system performance by reducing PAPR.

In the prior art, before a signal is transmitted to an amplifier, a nonlinear rectangular window is utilized to carry out amplitude reduction on the signal exceeding the window amplitude, so that the aim of reducing the PAPR is fulfilled, but the amplitude reduction by utilizing the rectangular window can cause serious distortion of some signals, the distorted signal can not be estimated at a receiving end, and the system performance can be reduced.

Disclosure of Invention

The application provides a method and a device for transmitting information, which can improve system performance.

In a first aspect, a method for transmitting information is provided, where the method is applicable to a transmitting end, and the method includes: determining the position of at least one symbol in the modulated symbols according to at least one amplitude threshold value; reducing the amplitude of the at least one symbol according to at least one scaling parameter corresponding to the at least one amplitude threshold value to obtain a reduced at least one symbol; and sending first indication information and the reduced at least one symbol to a receiving end, wherein the first indication information is used for indicating the position of the at least one symbol and the at least one scaling parameter.

In the above technical solution, the first indication information sent by the sending end to the receiving end indicates the position of at least one reduced symbol and also indicates at least one scaling parameter for processing the at least one symbol, so that when the receiving end recovers data, the receiving end can determine the at least one symbol to be recovered according to the position of the at least one symbol and recover the reduced at least one symbol according to the at least one scaling parameter, thereby better recovering the data, avoiding distortion and being beneficial to improving the system performance.

In addition, in the above technical solution, at least one symbol of the modulated symbols is processed, and there is no coupling relation between the modulation scheme and the communication architecture, so that the method can be applied to any modulation scheme or any communication architecture, and therefore, the universality can be improved. The modulation mode may be binary phase shift keying (binary phase shift keying, BPSK), quadrature amplitude modulation (quadrature amplitude modulation, QAM), or orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) modulation, and the communication architecture may be a single-input single-output (single input single output, SISO) architecture, a multiple-input multiple-output (multiple input multiple output, MIMO) architecture, a multiple-input single-output (multiple input single output, MISO) architecture, a single-input multiple-output (single input multiple output, SIMO) architecture, or the like.

In some possible implementations, the method further includes: and acquiring the coded information bits, wherein the modulated symbols are modulation symbols of user plane data obtained by modulating the coded information bits.

Alternatively, the modulated symbols may include modulation symbols for user plane data and modulation symbols for control plane data. Optionally, the modulated symbol includes a modulation symbol of the user plane data and does not include a modulation symbol of the control plane data, so that in the embodiment of the present application, only the modulation symbol of the user plane data is processed, the modulation symbol of the control plane data is relatively more important, and the modulation symbol of the user plane data can be selected to be processed, and the modulation symbol of the control plane data is not processed, so that the modulation symbol of the control plane data can be better protected.

In some possible implementations, the determining the position of the at least one symbol in the modulated symbols according to the at least one amplitude threshold value includes: and determining the symbol with the amplitude larger than or equal to the at least one amplitude threshold value in the modulated symbols as the at least one symbol, and determining the position of the at least one symbol. Alternatively, the transmitting end may determine one or more symbols among the modulated symbols according to an amplitude threshold value. Alternatively, the transmitting end may determine one or more symbols among the modulated symbols according to more than two amplitude threshold values.

In some possible implementations, the reducing the amplitude of the at least one symbol according to the at least one scaling parameter corresponding to the at least one amplitude threshold value, to obtain a reduced at least one symbol, includes: determining a scaling parameter corresponding to each symbol in the at least one symbol; and processing each symbol by utilizing the scaling parameter corresponding to each symbol to obtain each symbol after reduction.

Optionally, the scaling parameter is used to indicate a degree or amount of reduction of the amplitude, and the one or more amplitude threshold values may correspond to one or more different scaling parameters, the different amplitude threshold values corresponding to different scaling parameters, the different scaling parameters representing different reduction scales for the amplitude. The scaling parameters may be protocol-specified or configured, and both the transmitting end and the receiving end can determine a reduction scale for the amplitude according to the scaling parameters.

In some possible implementations, the at least one amplitude threshold includes a real signal threshold and an imaginary signal threshold, where the real signal threshold may be one or more and the imaginary signal threshold may be one or more, the method further comprising:

separating the modulated symbols into a real part and an imaginary part;

wherein the determining the symbol with the amplitude greater than the at least one amplitude threshold value as the at least one symbol and determining the position of the at least one symbol includes:

determining that the real part is greater than or equal to the real part threshold value of the signal as at least one real part to be reduced, and determining the position of the at least one real part to be reduced; and/or

And determining the imaginary part greater than or equal to the signal imaginary threshold value as at least one imaginary part to be reduced, and determining the position of the at least one imaginary part to be reduced.

In some possible implementations, the determining the scaling parameter corresponding to each symbol of the at least one symbol includes: determining a scaling parameter corresponding to each real part to be reduced in the at least one real part to be reduced; processing each symbol by using the scaling parameter corresponding to each symbol to obtain each reduced symbol, including: reducing the real parts to be reduced by using the scaling parameters corresponding to the real parts to be reduced to obtain reduced real parts; and/or

The determining the scaling parameter corresponding to each symbol in the at least one symbol includes: determining a scaling parameter corresponding to each of the at least one imaginary part to be reduced; processing each symbol by using the scaling parameter corresponding to each symbol to obtain each reduced symbol, including: reducing the imaginary parts to be reduced by using the scaling parameters corresponding to the imaginary parts to be reduced to obtain each reduced imaginary part;

the first indication information is specifically configured to indicate a position of the at least one real part to be reduced and a scaling parameter corresponding to each real part to be reduced, and/or the first indication information is specifically configured to indicate a position of the at least one imaginary part to be reduced and a scaling parameter corresponding to each imaginary part to be reduced.

Optionally, a scaling parameter corresponding to each real part to be reduced is used to indicate a reduction degree or reduction amount of each real part to be reduced, and different scaling parameters represent different reduction scales for the real part. The scaling parameters may be protocol-specified or configured, and both the transmitting end and the receiving end can determine a scale for reducing the real part according to the scaling parameters.

Alternatively, one real part to be reduced corresponds to one scaling parameter, and two real parts to be reduced may correspond to the same scaling parameter or different scaling parameters

Optionally, the scaling parameter corresponding to each of the to-be-reduced imaginary parts is used to indicate a reduction degree or reduction amount of each of the to-be-reduced imaginary parts, and different scaling parameters represent different reduction scales for the imaginary parts. The scaling parameters may be protocol-specified or configured, and both the transmitting end and the receiving end may determine the reduction scale for the imaginary number according to the scaling parameters.

Alternatively, one imaginary part to be reduced corresponds to one scaling parameter, and two imaginary parts to be reduced may correspond to the same scaling parameter or different scaling parameters.

In some possible implementations, the method further includes: the at least one amplitude threshold value is obtained.

Alternatively, the at least amplitude threshold value may be protocol-defined or configured, and the application is not limited.

In some possible implementations, the acquiring the at least one amplitude threshold value includes: and determining the at least one amplitude threshold value by an adaptive method by taking the input signal as the modulated symbol and the output signal as the reduced at least one symbol. In this way, the determined at least one amplitude threshold value can be enabled to meet the requirement, and the requirement of the system can be dynamically adapted.

For example, the adaptive method aims at minimizing the distortion of the signal, and can be implemented by least square, least mean square error and other algorithms.

In a second aspect, a method for transmitting information is provided, which includes: receiving first indication information and reduced at least one symbol, wherein the first indication information is used for indicating the position of the at least one symbol and at least one scaling parameter for reducing the at least one symbol; and amplifying the reduced at least one symbol according to the first indication information to obtain an amplified at least one symbol.

In the above technical solution, when the receiving end recovers the data, the receiving end may determine at least one symbol to be recovered according to the position of the at least one symbol, and amplify the reduced at least one symbol according to at least one scaling parameter, so that the data may be recovered better, distortion may be avoided, and the system performance may be improved.

In some possible implementations, the at least one symbol is a modulation symbol of user plane data in the modulated symbols.

In some possible implementations, the first indication information is specifically configured to indicate a location of at least one scaled real part and a scaling parameter corresponding to each scaled real part, and/or the first indication information is specifically configured to indicate a location of at least one scaled imaginary part and a scaling parameter corresponding to each scaled imaginary part; the amplifying processing is performed on the at least one reduced symbol according to the first indication information to obtain at least one amplified symbol, which includes: determining the at least one scaled real part from a location of the at least one scaled real part; amplifying each scaled real part by utilizing a scaling parameter corresponding to the at least one scaled real part to obtain an amplified real part; and/or

The amplifying processing is performed on the at least one reduced symbol according to the first indication information to obtain at least one amplified symbol, which includes: determining the at least one imaginary part to be scaled according to the position of the at least one scaled imaginary part; amplifying each imaginary part to be scaled by utilizing a scaling parameter corresponding to each imaginary part to be scaled to obtain an amplified imaginary part;

the method further comprises the steps of: combining the amplified real part and/or the amplified imaginary part to obtain an amplified symbol

In a third aspect, there is provided an apparatus for transmitting information for performing the method of the first aspect or any of the possible implementations of the first aspect. In particular, the apparatus may comprise means for performing the method of the first aspect or any of the possible implementations of the first aspect.

In a fourth aspect, there is provided an apparatus for transmitting information for performing the method of the second aspect or any of the possible implementations of the second aspect. In particular, the apparatus may comprise means for performing the method of the second aspect or any possible implementation of the second aspect.

In a fifth aspect, there is provided an apparatus for transmitting information, the apparatus comprising a processor coupled to a memory, the memory for storing a computer program or instructions, the processor for executing the computer program or instructions stored by the memory such that the method of the first aspect is performed.

For example, a processor is configured to execute a computer program or instructions stored in a memory, to cause the apparatus to perform the method in the first aspect.

Optionally, the apparatus includes one or more processors.

Optionally, a memory coupled to the processor may also be included in the apparatus.

Alternatively, the apparatus may comprise one or more memories.

Alternatively, the memory may be integrated with the processor or provided separately.

Optionally, a transceiver may also be included in the apparatus.

In a sixth aspect, there is provided an apparatus for transmitting information, the apparatus comprising a processor coupled to a memory, the memory for storing a computer program or instructions, the processor for executing the computer program or instructions stored by the memory, such that the method of the second aspect is performed.

For example, a processor is configured to execute a computer program or instructions stored in a memory, to cause the apparatus to perform the method in the second aspect.

Optionally, the apparatus includes one or more processors.

Alternatively, the apparatus may comprise one or more memories.

Optionally, a transceiver may also be included in the apparatus.

In a seventh aspect, the present application provides a system for transmitting information, the system comprising the apparatus provided in the third aspect and the apparatus provided in the fourth aspect; or alternatively

The system comprises the device provided in the fifth aspect and the device provided in the sixth aspect.

In an eighth aspect, a computer-readable storage medium is provided, on which a computer program (which may also be referred to as instructions or code) for implementing the method in the first aspect is stored.

For example, the computer program, when executed by a computer, causes the computer to perform the method of the first aspect. The computer may be a communication device.

A ninth aspect provides a computer-readable storage medium having stored thereon a computer program (also referred to as instructions or code) for implementing the method in the first or second aspect.

For example, the computer program, when executed by a computer, causes the computer to perform the method of the second aspect. The computer may be a communication device.

In a tenth aspect, the present application provides a chip comprising a processor. The processor is configured to read and execute a computer program stored in the memory to perform the method of the first aspect and any possible implementation thereof.

Optionally, the chip further comprises a memory, and the memory is connected with the processor through a circuit or a wire.

Further optionally, the chip further comprises a communication interface.

In an eleventh aspect, the present application provides a chip comprising a processor. The processor is configured to read and execute a computer program stored in the memory to perform the method of the second aspect and any possible implementation thereof.

Further optionally, the chip further comprises a communication interface.

In a twelfth aspect, the present application provides a computer program product comprising a computer program (which may also be referred to as instructions or code) which, when executed by a computer, causes the computer to carry out the method of the first aspect. The computer may be a communication device.

In a thirteenth aspect, the present application provides a computer program product comprising a computer program (which may also be referred to as instructions or code) which, when executed by a computer, causes the computer to carry out the method of the second aspect. The computer may be a communication device.

Drawings

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application.

Fig. 2 is a schematic diagram of a system architecture according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a method for transmitting information according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a reduced amplitude provided by an embodiment of the present application.

Fig. 5 is a schematic diagram of another method for transmitting information according to an embodiment of the present application.

Fig. 6 is a schematic diagram of another method for transmitting information according to an embodiment of the present application.

Fig. 7-9 are schematic block diagrams of an apparatus for transmitting information according to an embodiment of the present application.

Detailed Description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, future fifth generation (5th generation,5G) system, or New Radio (NR), etc.

The terminal device in the embodiments of the present application may refer to a user device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (public land mobile network, PLMN), etc., as the embodiments of the application are not limited in this respect.

The network device in the embodiment of the present application may be any device having a wireless transceiver function. The apparatus includes, but is not limited to: an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (home evolved NodeB, or home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission point (transmission point, TP), or a transmission receiving point (transmission and reception point, TRP), etc., and may also be a fifth generation (the fifth generation, 5G) system, for example, a gNB or a transmission point (TRP or TP) in a new air interface (new radio, NR), an antenna panel of a base station or a group (including a plurality of antenna panels) in a 5G system, or may also be a network Node constituting a gNB or a transmission point, for example, a BBU or a distributed unit (baseband) or a DU, etc.

In some deployments, the gNB may include Centralized Units (CUs) and Distributed Units (DUs). The gNB may also include an active antenna unit (active antenna unit, AAU). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB. For example, the CU is responsible for handling non-real time protocols and services, implementing the functions of the radio resource control (radio resource control, RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (media access control, MAC) and Physical (PHY) layers. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may eventually become information of the PHY layer or be converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the du+aau. It is understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (radio access network, RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

Referring to fig. 1, fig. 1 is an architecture diagram of a communication system suitable for use in embodiments of the present application. As shown in fig. 1, at least one network device 101 may be included in the wireless communication system, where the network device 101 communicates with one or more terminal devices (e.g., terminal device 102 and terminal device 103 shown in fig. 1). When the network equipment sends a signal, the network equipment is a sending end, and the terminal equipment is a receiving end. Otherwise, when the terminal equipment sends a signal, the terminal equipment is a sending end, and the network equipment is a receiving end. Of course, one of the two network devices may be a transmitting end, and the other may be a receiving end; or one of the two terminal devices may be a transmitting end and the other may be a receiving end.

As an example, the flow of the receiving end and the transmitting end is shown in fig. 2.

At the transmitting end, the following operations are performed:

encoding the data bit stream to obtain encoded information bits; modulating and mapping the coded information bits in a transmitting baseband processing unit to obtain modulated and mapped signals, performing digital-to-analog conversion (digital to analog converter, DAC) on the modulated and mapped signals to obtain analog signals, converting the analog signals with medium and low frequencies into radio frequency signals with high frequencies through a radio frequency unit in transmission, amplifying the radio frequency signals through a power amplifier to obtain effective signals to be transmitted (not shown in fig. 2), and transmitting the effective signals to be transmitted to a receiving end through a channel (wired channel or wireless channel) by a transmitting end;

At the receiving end, the following operations are performed:

and receiving an effective signal sent by a sending end, converting a radio frequency signal into a signal with medium and low frequencies through a receiving medium radio frequency unit, performing analog-to-digital conversion (analog to digital converter, ADC) on the signal with medium and low frequencies to obtain a digital signal, demodulating the digital signal by using a receiving baseband processing unit to obtain a demodulated signal, and performing decoding processing on the demodulated signal to obtain a data bit stream.

The PAPR is abbreviated as peak to average ratio and is defined as follows:

where x (T) represents a signal and T represents an accumulation period. PAPR is a measurement of the high dynamic range of the input amplitude of a radio frequency unit in wireless transmission, and becomes one of the important indexes for measuring the influence of a wireless system on the radio frequency unit in transmission. The larger the PAPR, the larger the maximum value in the instantaneous amplitude of the signal in the T time period, and when the signal passes through a nonlinear component (such as a nonlinear amplifier), the amplitude nonlinear processing of the signal with the larger instantaneous amplitude can cause serious distortion, thereby reducing the system performance; the smaller the PAPR is, the smaller the maximum value in the instantaneous amplitude of the signal is in the T time period, the nonlinear processing is carried out on the amplitude of the signal with smaller instantaneous amplitude when the signal passes through the nonlinear component, but the nonlinear component is almost linear in the part with smaller amplitude, so that the smaller the distortion is when the signal with smaller instantaneous amplitude passes through the nonlinear part, and the better the system performance is. It is therefore necessary to improve system performance by reducing PAPR.

In view of the foregoing, an embodiment of the present application provides a method for transmitting information, where a first indication information sent by a sending end to a receiving end indicates a position of at least one reduced symbol and indicates at least one scaling parameter for processing the at least one symbol, so that when the receiving end recovers data, the receiving end may determine at least one symbol to be recovered according to the position of the at least one symbol, and recover the reduced at least one symbol according to the at least one scaling parameter, thereby better recovering the data, avoiding distortion, and being helpful for improving system performance.

The method 300 for transmitting information provided in the embodiments of the present application is described below with reference to the accompanying drawings, where the method 300 includes:

s310, the transmitting end determines the position of at least one symbol in the modulated symbols according to at least one amplitude threshold value.

In one possible implementation, the modulated symbols may include modulation symbols for user plane data and modulation symbols for control plane data; in another possible implementation manner, the modulated symbols include the modulation symbols of the user plane data and do not include the modulation symbols of the control plane data, so that in the embodiment of the application, only the modulation symbols of the user plane data are processed, the modulation symbols of the control plane data are relatively more important, the modulation symbols of the user plane data can be selectively processed, and the modulation symbols of the control plane data are not processed, so that the modulation symbols of the control plane data can be better protected.

Optionally, before S310, the method 300 further includes: the transmitting end obtains at least one amplitude threshold value. Specifically, the transmitting end may obtain at least one amplitude threshold value by at least one of the following manners:

in one mode, the protocol specifies at least one amplitude threshold value;

in the second mode, the receiving end configures at least one amplitude threshold value for the transmitting end, for example, the transmitting end is a network device, the receiving end is a device in the network device, and the network device can configure at least one amplitude threshold value for the terminal device.

In a third mode, the at least one amplitude threshold value is determined by an adaptive method with the input signal as the modulated symbol and the output signal as the reduced at least one symbol, for example, the adaptive method aims at minimizing distortion of the signal and can be implemented by least square, least mean square error and other algorithms, for example, the distortion degree of a signal can be measured by adopting an average value of the difference between the original signal and the output signal and the like.

Optionally, S310 includes: and determining the symbol with the amplitude larger than or equal to the at least one amplitude threshold value in the modulated symbols as the at least one symbol, and determining the position of the at least one symbol. Optionally, the transmitting end may determine one or more symbols in the modulated symbols according to an amplitude threshold value, for example, determine, in the modulated symbols, that a symbol with an amplitude greater than the amplitude threshold value is one or more symbols to be processed; alternatively, the transmitting end may determine one or more symbols among the modulated symbols according to more than two amplitude threshold values, for example, the amplitude threshold value 1 is smaller than the amplitude threshold value 2, and the symbol with the amplitude between the amplitude threshold value 2 and the amplitude threshold value may be determined as one or more symbols to be processed.

S320, the sending end performs reduction processing on the amplitude of the at least one symbol according to at least one scaling parameter corresponding to the at least one amplitude threshold value, and at least one reduced symbol is obtained.

The scaling parameters are used to indicate the reduction degree or reduction amount of the amplitude, and the one or more amplitude threshold values may correspond to one or more different scaling parameters, where the different amplitude threshold values correspond to different scaling parameters, and the different scaling parameters represent different reduction scales for the amplitude. The scaling parameters may be protocol-specified or configured, and both the transmitting end and the receiving end can determine a reduction scale for the amplitude according to the scaling parameters.

Optionally, S320 includes: determining a scaling parameter corresponding to each symbol in the at least one symbol; and processing each symbol by utilizing the scaling parameter corresponding to each symbol to obtain each symbol after reduction. Specifically, the scaling parameters corresponding to different magnitudes of the symbols may be different, and the transmitting end determines the scaling parameter corresponding to each symbol according to the magnitude of each symbol. Alternatively, the scaling parameters corresponding to symbols of the same magnitude may be the same or different, which is not limited by the embodiments of the present application.

S320 can be understood as: and the transmitting end performs reduction processing on one or more symbols with the amplitude larger than the first amplitude threshold value and smaller than the second amplitude threshold value according to one or more scaling parameters corresponding to the first amplitude threshold value and the second amplitude threshold value in the at least one amplitude threshold value. A scaling parameter may reduce one or more symbols.

For example, as shown in fig. 3, the amplitude threshold 1 is a first amplitude threshold value, the amplitude threshold 2 is a second amplitude threshold value, and the symbols with the amplitude greater than the amplitude threshold 1 and less than the amplitude threshold 2 are the 1 st symbol, the 8 th symbol and the 28 th symbol; in fig. 3, the scaling parameters corresponding to the symbols with different amplitudes are different, the scaling parameter of the 1 st symbol between the symbol with the amplitude greater than the amplitude threshold 1 and the first dotted line from bottom to top is the scaling parameter 1, the scaling parameter of the 8 th symbol with the amplitude greater than the third dotted line from bottom to top and smaller than the amplitude threshold 2 is the scaling parameter 4, and the scaling parameter of the 28 th symbol with the amplitude greater than the second dotted line from bottom to top and smaller than the third dotted line is the scaling parameter 3, so that the amplitude of the 1 st symbol is reduced by using the scaling parameter 1, and the amplitude of the 1 st symbol after reduction is smaller than the amplitude threshold 1; reducing the amplitude of the 8 th symbol by using the scaling parameter 4 to obtain that the amplitude of the 8 th symbol after reduction is smaller than an amplitude threshold 1; and reducing the amplitude of the 28 th symbol by using the scaling parameter 3, wherein the amplitude of the 28 th symbol after reduction is smaller than the amplitude threshold 1. In other words, the magnitudes of the 1 st symbol, 8 th symbol, and 28 th symbol, which are greater than the magnitude threshold, can be reduced to less than the magnitude threshold 1 by three scaling parameters.

For better illustration, in fig. 3, the scaling parameter of the 1 st symbol is the scaling parameter 2, the scaling parameter of the 8 th symbol is the scaling parameter 3, and the scaling parameter of the 28 th symbol is the scaling parameter 2.

Optionally, the larger the amplitude of the symbol, the larger the corresponding downscaling scale of the scaling parameter, e.g., as shown in fig. 3, the downscaling scale of the scaling parameter of the 8 th symbol is greater than or equal to the downscaling scale of the scaling parameter of the 28 th symbol, and the downscaling scale of the scaling parameter of the 28 th symbol is greater than or equal to the downscaling scale of the scaling parameter of the 1 st symbol. In other words, in fig. 3, the scale factor 4 has a larger scale factor than the scale factor 3, the scale factor 3 has a larger scale factor than the scale factor 2, and the scale factor 2 has a larger scale factor than the scale factor 1.

The transmitting end can determine bits indicating the scaling parameters according to the number of the scaling parameters, for example, if the scaling parameters are N, the bits indicating the scaling parameters are

Wherein (1)>

Is an upper rounding operation. For example, as shown in fig. 3, if the scaling parameters are 4, the scaling parameters may be indicated by 2 bits, e.g., 00 represents scaling parameter 1, 01 represents scaling

parameter

2, 10 represents scaling parameter 3, and 11 represents scaling parameter 4.

S330, the transmitting terminal transmits the first indication information and the reduced at least one symbol to the receiving terminal, and the receiving terminal receives the first indication information and the at least one symbol transmitted by the transmitting terminal; the first indication information is used for indicating the position of the at least one symbol and the at least one scaling parameter.

For example, as in fig. 4, the first indication information indicates the position and scaling parameter 1 of the 1 st symbol, the position and scaling parameter 4 of the 8 th symbol, and the position and scaling parameter 3 of the 28 th symbol, for example, the first indication information may be: 0000100 (the upper 5 bits 00001 indicates 2 bits 00 lower of the 1 st symbol indicates a scaling parameter 1), 0100011 (the upper 5 bits 01000 indicates 2 bits 11 lower of the 8 th symbol indicates a scaling parameter 4), 1110010 (the upper 5 bits 11100 indicates 2 bits 10 lower of the 28 th symbol indicates a scaling parameter 3).

Optionally, in S330, the sending end encapsulates the first indication information and the reduced at least one symbol to the receiving end for sending, or may send the first indication information and the reduced at least one symbol separately, which is not limited in the embodiment of the present application.

Optionally, S330 further includes: the transmitting end transmits other symbols except the at least one symbol in the modulated symbols to the receiving end. Optionally, the transmitting end may encapsulate other symbols except for the at least one symbol in the modulated symbols together with the first indication information and the reduced at least one symbol to transmit to the receiving end. Optionally, the transmitting end may encapsulate other symbols except for the at least one symbol in the modulated symbols and the reduced at least one symbol together to transmit to the receiving end, and the transmitting end may separately transmit the first indication information to the receiving end.

It is understood that in the method 300, S310 and S320 may be implemented in the transmit baseband processing unit shown in fig. 2, and S330 may be implemented by the DAC module shown in fig. 2, where the transmitting rf module and the power amplifier then transmit the first indication information and the reduced at least one symbol to the receiving end through a wired or wireless channel. The receiving end receives the first indication information and the reduced at least one symbol, and the receiving radio frequency module and the ADC module execute the following S340 in the receiving baseband processing unit:

and S340, the receiving end amplifies the reduced at least one symbol according to the first indication information to obtain the amplified at least one symbol.

Specifically, S340 includes: the receiving end determines the position of the at least one symbol according to the first indication information, amplifies the amplitude of each symbol according to the scaling parameter of each symbol in the at least one symbol indicated by the first indication information to obtain each amplified symbol, so that the receiving end can accurately recover each symbol, distortion can be avoided, and the system performance is improved.

In connection with the example of fig. 4, if the first indication information indicates 0000100 (the upper 5 bits 00001 indicates that the lower 2 bits 00 of the 1 st symbol indicate the scaling parameter 1), 0100011 (the upper 5 bits 01000 indicates that the lower 2 bits 11 of the 8 th symbol indicate the scaling parameter 4), 1110010 (the upper 5 bits 11100 indicates that the lower 2 bits 10 of the 28 th symbol indicate the scaling parameter 3), the receiving end may determine that the amplitude of the 1 st symbol needs to be scaled by the scale indicated by the scaling parameter 1, the amplitude of the 8 th symbol needs to be scaled by the scale indicated by the scaling parameter 4, and the amplitude of the 28 th symbol needs to be scaled by the scale indicated by the scaling parameter 3 according to 0000100.

In the method 300, the amplitude of one symbol may be scaled, one symbol may be composed of a real part and an imaginary part, or the real part and the imaginary part of each symbol may be separated, and the real part and the imaginary part may be scaled, respectively, and the method of scaling the real part and the imaginary part is described below with reference to fig. 4.

The method 500 for transmitting information provided in the embodiments of the present application is described below with reference to the drawings, at least one amplitude threshold in the method 300 includes a real signal threshold and an imaginary signal threshold, where the real signal threshold may be one or more, and the imaginary signal threshold may be one or more, and the method 500 includes:

s501, the transmitting end separates the modulated symbol into a real part and an imaginary part. Specifically, each of the modulated symbols is separated into a real part and an imaginary part.

S502, the transmitting end determines the real part greater than or equal to the real part threshold value of the signal as at least one real part to be reduced, and determines the position of the at least one real part to be reduced.

Optionally, the transmitting end may determine one or more real parts to be reduced in the real parts according to a real part threshold value, for example, determine one or more real parts to be reduced with a magnitude greater than the real part threshold value in the real parts; optionally, the transmitting end may determine one or more real parts to be reduced in the real parts according to more than two real part threshold values, for example, the real part threshold value 1 is smaller than the real part threshold value 2, and the real part between the real part threshold value 2 and the real part threshold value may be determined as one or more real parts to be reduced.

S503, the transmitting end determines the imaginary part greater than or equal to the signal imaginary threshold value as at least one imaginary part to be reduced, and determines the position of the at least one imaginary part to be reduced.

Optionally, the transmitting end may determine one or more imaginary parts to be reduced in the imaginary parts according to an imaginary threshold value, for example, determine one or more imaginary parts to be reduced in the imaginary parts with an amplitude greater than the imaginary threshold value; optionally, the transmitting end may determine one or more to-be-reduced imaginary parts in the imaginary parts according to more than two imaginary threshold values, for example, the imaginary threshold value 1 is smaller than the imaginary threshold value 2, and the imaginary number between the imaginary threshold value 2 and the imaginary threshold value may be determined as the one or more to-be-reduced imaginary parts.

It is understood that the order of S502 and S503 is not limited, and S502 may be performed before or after S503 or simultaneously, which is not limited in the embodiment of the present application.

S504, the transmitting end determines a scaling parameter corresponding to each real part to be reduced in the at least one real part to be reduced, and reduces the real part to be reduced by utilizing the scaling parameter corresponding to each real part to be reduced, so as to obtain each real part after reduction.

Wherein, the scaling parameter corresponding to each real part to be reduced is used for indicating the reduction degree or reduction amount of each real part to be reduced, and different scaling parameters represent different reduction scales for the real part. The scaling parameters may be protocol-specified or configured, and both the transmitting end and the receiving end can determine a scale for reducing the real part according to the scaling parameters.

Alternatively, one real part to be reduced corresponds to one scaling parameter, and two real parts to be reduced may correspond to the same scaling parameter or different scaling parameters, which is not limited in the embodiment of the present application.

Optionally, the larger the real part, the larger the corresponding downscaling scale of the scaling parameter.

S505, the sending end determines a scaling parameter corresponding to each to-be-reduced imaginary part in the at least one to-be-reduced imaginary part, and reduces the to-be-reduced imaginary part by utilizing the scaling parameter corresponding to each to-be-reduced imaginary part to obtain each reduced imaginary part.

The scaling parameter corresponding to each imaginary part to be reduced is used for indicating the reduction degree or reduction amount of each imaginary part to be reduced, and different scaling parameters represent different reduction scales for the imaginary parts. The scaling parameters may be protocol-specified or configured, and both the transmitting end and the receiving end may determine the reduction scale for the imaginary number according to the scaling parameters.

Alternatively, one imaginary part to be reduced corresponds to one scaling parameter, and two imaginary parts to be reduced may correspond to the same scaling parameter or different scaling parameters, which is not limited in the embodiment of the present application.

Optionally, the larger the imaginary part, the larger the downscaling scale of the corresponding scaling parameter.

It is understood that the order of S504 and S505 is not limited, and S504 may be performed before or after S505, or simultaneously, which is not limited in the embodiment of the present application.

S506, the transmitting end combines each real part after reduction with each imaginary part after reduction to obtain a symbol after reduction.

S507, the sending end sends the reduced symbol and the first indication information to the receiving end, and the receiving end receives the reduced symbol and the first indication information, wherein the first indication information is specifically used for indicating the position of the real part after scaling and the scaling parameter corresponding to each real part after scaling, and is specifically used for indicating the position of the imaginary part after scaling and the scaling parameter corresponding to each imaginary part after scaling.

Alternatively, the method 500 may not include S506, and if S506 does not exist, in S507, the transmitting end transmits each of the reduced real parts and each of the reduced imaginary parts and the first indication information to the receiving end.

It should be noted that the first indication information corresponds to the transmitting end and the receiving end and may be the same indication information, for the transmitting end and the receiving end, different indication roles are different, specifically, for the transmitting end, the first indication information is specifically used for indicating the position of the at least one real part to be reduced and the scaling parameter corresponding to each real part to be reduced, for the receiving end, the first indication information is specifically used for indicating the position of the real part to be reduced and the scaling parameter corresponding to each real part to be reduced, where the position of the at least one real part to be reduced sent by the transmitting end is the same as the position of the real part to be reduced received by the receiving end, the scaling parameter corresponding to each real part to be reduced indicated by the first indication information sent by the transmitting end and the scaling parameter corresponding to the real part to be reduced indicated by the first indication information received by the receiving end have an association relationship, and the scaling parameter corresponding to each real part to be reduced indicated by the first indication information sent by the transmitting end is known. The same applies to the imaginary parts, for the transmitting end, the first indication information is specifically used for indicating the position of the at least one imaginary part to be reduced and the scaling parameter corresponding to each imaginary part to be reduced, for the receiving end, the first indication information is specifically used for indicating the position of the zoomed imaginary part and the scaling parameter corresponding to each zoomed imaginary part, wherein the position of the at least one imaginary part to be reduced sent by the transmitting end is the same as the position of the zoomed imaginary part received by the receiving end, the scaling parameter corresponding to each imaginary part to be reduced indicated by the first indication information sent by the transmitting end has an association with the scaling parameter corresponding to the zoomed imaginary part indicated by the first indication information received by the receiving end, and the receiving end can learn the scaling parameter corresponding to the zoomed imaginary part indicated by the first indication information received.

Specifically, the first indication information may be illustrated in fig. 4 of the method 300, and only the symbols in the method 300 may be replaced by real or imaginary parts, and the principle is the same as that in the method 300, so that detailed examples are not provided herein for avoiding redundancy.

Optionally, S507 further includes: the transmitting end transmits other symbols except the reduced symbol in the modulated symbols to the receiving end. Optionally, the transmitting end may encapsulate other symbols except the reduced symbol in the modulated symbol, together with the first indication information and the reduced symbol, and send the encapsulated symbol to the receiving end. Optionally, the transmitting end may encapsulate other symbols except the reduced symbol in the modulated symbols and the reduced symbol together to transmit to the receiving end, and the transmitting end may separately transmit the first indication information to the receiving end.

It is understood that in the method 500, S501-S506 may be implemented in the transmit baseband processing unit shown in fig. 2, S507 may be implemented by the DAC module shown in fig. 2, and the transmitting rf module and the power amplifier may then transmit the reduced symbol and the first indication information to the receiving end through a wired or wireless channel. The receiving end receives the reduced symbol and the first indication information, and the receiving radio frequency module and the ADC module execute the following S508-S511 in the receiving baseband processing unit:

S508, the receiving end separates the received reduced symbol into a reduced real part and a reduced imaginary part.

It can be understood that if in S507, the transmitting end transmits each of the reduced real parts and each of the reduced imaginary parts and the first indication information to the receiving end, S508 does not exist.

S509, the receiving end determines the at least one real part to be scaled according to the position of the at least one real part to be scaled indicated by the first indication information, and amplifies each real part to be scaled by using the scaling parameter corresponding to each real part to be scaled indicated by the first indication information to obtain the amplified real part.

Similarly, the amplifying process for each real part to be scaled according to the first indication information is described with reference to the example in S340, and only the symbol in S340 is replaced with the real part.

S510, the receiving end determines the at least one imaginary part to be scaled according to the position of the at least one imaginary part to be scaled, and amplifies each imaginary part to be scaled by utilizing the scaling parameter corresponding to each imaginary part to be scaled to obtain the amplified imaginary part.

Similarly, the amplification processing of each imaginary part to be scaled according to the first indication information is described with reference to the example in S340, but the symbol in S340 is replaced with an imaginary part.

And S511, the receiving end combines the amplified real part and the amplified imaginary part to obtain an amplified symbol.

It will be appreciated that the process of processing the real part and the imaginary part simultaneously is described in the method 500, and in practical application, if the modulated symbol has only the real part, the steps related to the imaginary part in the method 500 may be omitted, and there is no step of separating and combining the real part and the imaginary part, such as S501, S503, S505, S506, S508 and S410. If only the imaginary part exists for the modulated symbol, the steps for the real part in method 400 may be omitted, nor are the steps for separating and combining the real and imaginary parts, such as S501, S502, S504, S506, S508 and S509.

Therefore, in the method 500, the receiving end and the transmitting end may process the real part and the imaginary part of the symbol separately, if the real part is larger, only the real part is reduced, if the imaginary part is larger, only the imaginary part is reduced, if the imaginary part and the real part are both larger, both the real part and the imaginary part are reduced simultaneously, and the degree of reduction can be refined, especially for the case that one of the real part and the imaginary part of a certain symbol is larger, and the other is smaller, if the real part and the imaginary part are reduced simultaneously, the smaller one becomes smaller, so as to be submerged in noise, so that distortion can be avoided, and the PAPR is reduced while contributing to improving the system performance.

It should be noted that, the scaling parameter mentioned in the embodiment of the present application may indicate the scaling amount, and may also indicate the scaling percentage. For example, the amplitude of a symbol is a, for the transmitting end, the scaling parameter may indicate the amplitude of the downscaling B (B < a), for the receiving end, the amplitude of the amplified B may indicate that, in an ideal case, the amplitude of the symbol transmitted by the transmitting end is a-B, and the amplitude of the symbol recovered by the receiving end is (a-B) +b. For another example, the amplitude of one symbol is a, and for the transmitting end, the scaling parameter indicates an amplitude reduced by 30%, and for the receiving end, an amplitude enlarged by (3/7) by 100% may be indicated.

In other words, the scaling parameter used to reduce the amplitude of a symbol at the transmitting end is g, and the scaling parameter used to amplify the amplitude of the symbol at the receiving end is f (g), where f (g) represents a function of g.

In the embodiment of the present application, one symbol may be represented as a+bi, or may be equivalent to

Wherein a and b are real numbers. Scaling the amplitude of a symbol with a scaling parameter can be understood as +_ scaling the amplitude of a + bi with a scaling parameter>

Scaling is carried out; scaling the real part of a symbol with scaling parameters can be understood as scaling a with scaling parameters; scaling the imaginary part of a symbol with scaling parameters may be understood as scaling b with scaling parameters.

The method 400 is described by way of example below in connection with fig. 6 and 7.

For example, the processing procedure of the transmitting end shown in fig. 6 mainly includes the following main steps:

data separation: the transmitting end receives the encoded information bits at the processing unit of the transmitting base station shown in fig. 2, the encoded information bits may also become data to be processed in fig. 6, the transmitting baseband processing unit separates the encoded information bits and separates the user plane data from the control plane data, IQ0, IQ1, … …, IQM in fig. 6 are user plane data, and Control Word (CW) is user plane data.

In-phase quadrature (in-phase and quadrature, IQ) separation, also known as real and imaginary part separation, performs IQ separation on each user plane data. The user plane data of IQ0, IQ1, … … and IQM may be modulated before IQ separation, to obtain modulated user plane data symbols. I (bits) in fig. 6 indicate the real part of the symbol of the modulated user data, and Q (bits) indicate the imaginary part of the symbol of the modulated user plane data.

Threshold searching, wherein a radio frequency reflected signal obtained by the embodiment of the application is utilized, a signal after data framing (comprising each real part after the reduction) is taken as an output signal, separated I bits are taken as an input signal, and a threshold of I path data is determined by utilizing an adaptive method, and the threshold is also called a real part threshold value of the signal; by using the radio frequency reflected signal (including each imaginary part after the reduction), which is obtained by the application, the signal after framing the data is used as an output signal, the separated Q bits are used as an input signal, and the threshold of Q paths of data, which is also called a signal imaginary threshold value, is determined by using an adaptive method.

Amplitude judgment, namely comparing the I-path data with a threshold of the I-path data, determining that the threshold is larger than or equal to the threshold of the I-path data as a real part to be reduced, locking the position of the real part to be reduced (indicating the position of the real part by using a position index of K bits), and determining a reduction parameter of L bits of the real part to be reduced according to the size of the real part to be reduced; and comparing the Q-way data with a threshold of the Q-way data, determining the data greater than or equal to the threshold of the Q-way data as an imaginary part to be reduced, locking the position of the imaginary part to be reduced (indicating the position of the imaginary part by using a position index of K bits), and determining the L-bit reduction parameter of the imaginary part to be reduced according to the size of the imaginary part to be reduced.

It will be appreciated that, for convenience of description, the L bits are used to indicate the reduction parameters of the real part to be reduced, and the L bits are also used to indicate the reduction parameters of the imaginary part to be reduced, and in practical applications, different numbers of bits may be used to indicate the reduction parameters of the real part to be reduced and the reduction parameters of the imaginary part to be reduced. Similarly, the above-mentioned position index of the real part is indicated by K bits, and the position index of the imaginary part is also indicated by K bits, and in practical application, the position reduction of the real part and the position index of the imaginary part may be indicated by different numbers of bits.

Information flag, determining k+l bits of the I-way, the k+l bits being used to indicate which positions of the real part are reduced by which reduction parameters, e.g. the upper K bits indicate positions of the real part, the lower L bits indicate reduction parameters for reducing the real part to be reduced, e.g. k= 5,L =2 in the example of fig. 4; the k+l bits of the Q-way are determined, the k+l bits being used to indicate which positions of the imaginary part are reduced by which reduction parameters, e.g. the upper K bits indicate positions of the imaginary part and the lower L bits indicate reduction parameters for reducing the imaginary part to be reduced, e.g. k= 5,L =2 in the example of fig. 4. In other words, the first indication information is k+l bits of the I-way and k+l bits of the Q-way. Information modulation, modulating the mark information, i.e., the first indication information, fig. 6 exemplarily shows that QAM modulation is used; while also modulating the CW.

And (3) signal preprocessing, namely reducing the real part to be reduced by using the L-bit reduction parameters of the real part to be reduced, reducing the imaginary part to be reduced by using the L-bit reduction parameters of the imaginary part to be reduced, wherein after the signal preprocessing, the I bit comprises unreduced part real bits and reduced part real bits, and the Q bit comprises unreduced part imaginary bits and reduced part imaginary bits. And combining the I bit and the Q bit to obtain IQ data.

Framing the data, namely framing the modulated first indication information, the IQ data and the modulated CW according to a set frame format.

And Radio Frequency (RF) transmitting the framed data to a receiving end through RF, and meanwhile, the framed data can be converted into a radio frequency reflection signal through ADC (analog-to-digital converter) to perform self-adaptive threshold search.

The processing procedure of the transmitting end is described in fig. 6, and the processing procedure of the receiving end is the inverse of the processing procedure of the transmitting end, so that the embodiment of the present application will not be described in detail for avoiding redundancy.

It will be appreciated that, in the foregoing fig. 6, for better illustrating the solution of the embodiment of the present application, in a possible implementation manner, there may be no step of searching the threshold in fig. 6, that is, there is no procedure of adaptively determining the threshold, where the threshold may be a complexity of the configuration or the protocol is well defined, so that the system may be reduced. In another possible implementation manner, fig. 6 may also be a process of separating the encoded information bits by the baseband processing unit, separating the user plane data from the control plane data, and processing both the control plane data and the user plane data according to the user plane data of fig. 6, so that the processing process of the data may be simplified.

The various embodiments described herein may be separate solutions or may be combined according to inherent logic, which fall within the scope of the present application.

It will be understood that the methods and operations implemented by the terminal device in the foregoing respective method embodiments may also be implemented by a component (e.g., a chip or a circuit) that may be used in the terminal device, the methods and operations implemented by the network device in the foregoing respective method embodiments may also be implemented by a component (e.g., a chip or a circuit) that may be used in the network device, and the methods and operations implemented by the first device in the foregoing respective method embodiments may also be implemented by a component (e.g., a chip or a circuit) that may be used in the first device.

Having described the method embodiments provided herein, embodiments of the apparatus provided herein are described below. It should be understood that the descriptions of the apparatus embodiments and the descriptions of the method embodiments correspond to each other, and thus, descriptions of details not described may be referred to the above method embodiments, which are not repeated herein for brevity.

The solutions provided in the embodiments of the present application are mainly described above from the perspective of interaction between network elements. It will be appreciated that each network element, e.g. the transmitting device or the receiving device, in order to implement the above-mentioned functions, comprises corresponding hardware structures and/or software modules for performing each function. Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

According to the embodiment of the present application, according to the above method example, the transmitting end device or the receiving end device may be divided into functional modules, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is merely a logic function division, and other possible division manners may be implemented in practice. The following description will take an example of dividing each functional module into corresponding functions.

Fig. 7 is a schematic block diagram of an apparatus 700 for transmitting information according to an embodiment of the present application. The apparatus 700 comprises a processing unit 710 and a transceiving unit 720. The transceiver unit 720 may communicate with the outside, and the processing unit 710 is used for data processing. The transceiver unit 720 may also be referred to as a communication interface or a communication unit.

The apparatus 700 may be configured to perform the actions performed by the sender in the above method embodiment, where the apparatus 700 may be referred to as a terminal device or a network device, the transceiver unit 720 is configured to perform the operations related to sending by the sender in the above method embodiment, and the processing unit 710 is configured to perform the operations related to processing by the sender in the above method embodiment.

Wherein the processing unit 710 is configured to determine a position of at least one symbol in the modulated symbols according to the at least one amplitude threshold value; reducing the amplitude of the at least one symbol according to at least one scaling parameter corresponding to the at least one amplitude threshold value to obtain a reduced at least one symbol; and a transceiver unit 720, configured to send first indication information and the reduced at least one symbol to a receiving end, where the first indication information is used to indicate a position of the at least one symbol and the at least one scaling parameter.

As an alternative embodiment, the processing unit 710 is further configured to: and acquiring the coded information bits, wherein the modulated symbols are modulation symbols of user plane data obtained by modulating the coded information bits.

As an alternative embodiment, the processing unit 710 is specifically configured to: and determining the symbol with the amplitude larger than or equal to the at least one amplitude threshold value in the modulated symbols as the at least one symbol, and determining the position of the at least one symbol.

As an alternative embodiment, the processing unit 710 is specifically configured to: determining a scaling parameter corresponding to each symbol in the at least one symbol; and processing each symbol by utilizing the scaling parameter corresponding to each symbol to obtain each symbol after reduction.

As an alternative embodiment, the at least one amplitude threshold value includes a real signal threshold value and an imaginary signal threshold value, and the processing unit 710 is further configured to: separating the modulated symbols into a real part and an imaginary part;

the processing unit 710 is specifically configured to:

As an alternative embodiment, the processing unit 710 is specifically configured to:

determining a scaling parameter corresponding to each real part to be reduced in the at least one real part to be reduced;

reducing the real parts to be reduced by using the scaling parameters corresponding to the real parts to be reduced to obtain reduced real parts; and/or

The processing unit 710 is specifically configured to:

determining a scaling parameter corresponding to each of the at least one imaginary part to be reduced;

Reducing the imaginary parts to be reduced by using the scaling parameters corresponding to the imaginary parts to be reduced to obtain each reduced imaginary part;

As an alternative embodiment, the processing unit 710 is further configured to: the at least one amplitude threshold value is obtained.

As an alternative embodiment, the processing unit 710 is specifically configured to include: and determining the at least one amplitude threshold value by an adaptive method by taking the input signal as the modulated symbol and the output signal as the reduced at least one symbol.

Fig. 8 is a schematic block diagram of an apparatus 800 for transmitting information according to an embodiment of the present application. The communication device 800 comprises a processing unit 810 and a transceiving unit 820. The transceiver unit 820 may communicate with the outside, and the processing unit 810 is used for data processing. The transceiver unit 820 may also be referred to as a communication interface or a communication unit.

The apparatus 800 may be configured to perform the actions performed by the receiving end in the above method embodiment, where the apparatus 800 may be referred to as a terminal device or a network device, the transceiver unit 820 is configured to perform the operations related to the transceiver of the receiving end in the above method embodiment, and the processing unit 810 is configured to perform the operations related to the processing of the receiving end in the above method embodiment.

Wherein, the transceiver unit 820 is configured to receive first indication information and at least one reduced symbol, where the first indication information is used to indicate a position of the at least one symbol and at least one scaling parameter used to reduce the at least one symbol; and a processing unit 810, configured to amplify the reduced at least one symbol according to the first indication information, to obtain an amplified at least one symbol.

As an alternative embodiment, the at least one symbol is a modulation symbol of user plane data in the modulated symbols.

As an optional embodiment, the first indication information is specifically configured to indicate a position of at least one scaled real part and a scaling parameter corresponding to each scaled real part, and/or the first indication information is specifically configured to indicate a position of at least one scaled imaginary part and a scaling parameter corresponding to each scaled imaginary part;

The processing unit 810 is specifically configured to:

determining the at least one scaled real part from a location of the at least one scaled real part;

amplifying each scaled real part by utilizing a scaling parameter corresponding to the at least one scaled real part to obtain an amplified real part; and/or

Determining the at least one imaginary part to be scaled according to the position of the at least one scaled imaginary part;

amplifying each imaginary part to be scaled by utilizing a scaling parameter corresponding to each imaginary part to be scaled to obtain an amplified imaginary part;

the processing unit 810 is further configured to: and combining the amplified real part and/or the amplified imaginary part to obtain an amplified symbol.

It should be understood that the apparatus 700 and the apparatus 800 herein are embodied in the form of functional units. The term "unit" herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 700 may be specifically a terminal device or a network device in the foregoing embodiment, and may be used to perform each flow and/or step corresponding to the terminal device or the network device in the foregoing method embodiment, so that repetition is avoided, and will not be repeated herein. In another alternative example, it will be understood by those skilled in the art that the apparatus 800 may be specifically a terminal device or a network device in the foregoing embodiment, and may be used to perform each flow and/or step corresponding to the terminal device or the network device in the foregoing method embodiment, so that repetition is avoided, and will not be repeated herein.

The apparatus 700 of each of the above embodiments has a function of implementing the corresponding steps performed by the terminal device or the network device in the above method. The apparatus 800 of each of the above embodiments has a function of implementing the corresponding steps performed by the terminal device or the network device in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the communication units may be replaced by transceivers (e.g., a transmitting unit in the communication units may be replaced by a transmitter, a receiving unit in the communication units may be replaced by a receiver, or the communication units may be replaced by a communication interface), and other units, such as a processing unit, may be replaced by a processor, to perform the transceiving operations and the related processing operations in the respective method embodiments, respectively.

The transceiver unit may be a transceiver circuit (for example, may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit. In the embodiment of the present application, the apparatus in fig. 7 may be the terminal device or the network device in the foregoing embodiment, or may be a chip or a chip system, for example: system on chip (SoC). The communication unit can be an input/output circuit and a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit on the chip. And are not limited herein. The apparatus in fig. 8 may be the terminal device or the network device in the foregoing embodiment, or may be a chip or a chip system, for example: system on chip (SoC). The communication unit can be an input/output circuit and a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit on the chip. And are not limited herein.

Fig. 9 shows an apparatus 900 for transmitting information according to an embodiment of the present application. The apparatus 900 includes a processor 910 and a transceiver 920. Wherein the processor 910 and the transceiver 920 communicate with each other through an internal connection path, the processor 910 is configured to execute instructions to control the transceiver 920 to transmit signals and/or receive signals.

Optionally, the apparatus 900 may further include a memory 930, where the memory 930 communicates with the processor 910 and the transceiver 920 through an internal connection path. The memory 930 is used to store instructions and the processor 910 may execute the instructions stored in the memory 930.

In a possible implementation manner, the apparatus 900 is configured to implement each flow and step corresponding to the sending end in the above method embodiment.

In another possible implementation manner, the apparatus 900 is configured to implement each flow and step corresponding to the receiving end in the above method embodiment.

It should be understood that the apparatus 900 may be specifically a transmitting end or a receiving end in the above embodiment, and may also be a chip or a chip system. Correspondingly, the communication interface 920 may be a transceiver circuit of the chip, which is not limited herein. Specifically, the apparatus 900 may be configured to perform each step and/or flow corresponding to the sending end or the receiving end in the above method embodiments. The memory 930 may optionally include read-only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store information of the device type. The processor 910 may be configured to execute instructions stored in a memory, and when the processor 910 executes the instructions stored in the memory, the processor 910 is configured to perform the steps and/or processes of the method embodiments corresponding to the transmitting side or the receiving side described above.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, or discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the application, the application further provides a computer program product, which comprises: computer program code which, when run on a computer, causes the computer to perform the steps or procedures performed by the first access network device or the second access network device in the above embodiments.

According to the method provided in the embodiment of the present application, there is further provided a computer readable storage medium storing program code, which when executed on a computer, causes the computer to perform the steps or processes performed by the first access network device or the second access network device in the above embodiment.

According to the method provided by the embodiment of the application, the application further provides a communication system, which comprises at least two devices of the first access network device, the second access network device, the terminal device and the core network device.

The embodiments shown in fig. 7 to 9 in the respective apparatus embodiments and the embodiments shown in fig. 3 to 7 in the method embodiments described above correspond completely, the respective steps are performed by respective modules or units, for example, the communication unit (transceiver) performs the steps of receiving or transmitting in the method embodiment, and other steps than transmitting and receiving may be performed by the processing unit (processor). The functionality of a particular unit may be based on corresponding method embodiments. Wherein the processor may be one or more.

In this application, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information is referred to as information to be indicated, and in a specific implementation process, there may be various ways of indicating the information to be indicated, for example, but not limited to, directly indicating the information to be indicated, such as indicating the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent.

In the embodiments of the present application, each term and english abbreviation are given as exemplary examples for convenience of description, and should not constitute any limitation to the present application. This application does not exclude the possibility of defining other terms in existing or future protocols that perform the same or similar functions.

In the embodiments of the present application, the first, second and various numerical numbers are merely for convenience of description and are not intended to limit the scope of the embodiments of the present application. E.g. to distinguish between different network slices, to distinguish between different network devices, etc.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between two or more computers. Furthermore, these components can execute from various computer readable storage media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with one another in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

It should be understood that "at least one" herein means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, and c may represent: a, b, or c, or a and b, or a and c, or b and c, or a, b and c, wherein a, b and c can be single or multiple.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks (illustrative logical block) and steps (steps) described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working procedures of the above-described systems, apparatuses and units may be based on the corresponding procedures in the foregoing method embodiments, which are not described in detail herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

In the above-described embodiments, the functions of the respective functional units may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). When the computer program instructions (program) are loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present application are fully or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting information, comprising:

determining the position of at least one symbol in the modulated symbols according to at least one amplitude threshold value;

reducing the amplitude of the at least one symbol according to at least one scaling parameter corresponding to the at least one amplitude threshold value to obtain a reduced at least one symbol;

transmitting first indication information and the reduced at least one symbol to a receiving end, wherein the first indication information is used for indicating the position of the at least one symbol and the at least one scaling parameter, and the position of the at least one symbol indicated by the first indication information is used for determining the reduced at least one symbol by the receiving end;

wherein the at least one amplitude threshold value is determined by an adaptive method according to the fact that an input signal is the modulated symbol and an output signal is the reduced at least one symbol;

wherein the method further comprises: and acquiring the coded information bits, wherein the modulated symbols are modulation symbols of user plane data obtained by modulating the coded information bits.

2. The method of claim 1, wherein determining the position of the at least one symbol in the modulated symbols based on the at least one amplitude threshold value comprises:

And determining the symbol with the amplitude larger than or equal to the at least one amplitude threshold value in the modulated symbols as the at least one symbol, and determining the position of the at least one symbol.

3. The method according to claim 2, wherein the reducing the amplitude of the at least one symbol according to the at least one scaling parameter corresponding to the at least one amplitude threshold value, to obtain the reduced at least one symbol, includes:

determining a scaling parameter corresponding to each symbol in the at least one symbol;

and processing each symbol by utilizing the scaling parameter corresponding to each symbol to obtain each symbol after reduction.

4. A method according to claim 3, wherein the at least one amplitude threshold value comprises a real signal threshold value and an imaginary signal threshold value, the method further comprising:

separating the modulated symbols into a real part and an imaginary part;

wherein the determining the symbol with the amplitude greater than or equal to the at least one amplitude threshold value in the modulated symbols as the at least one symbol, and determining the position of the at least one symbol, includes:

5. The method of claim 4, wherein said determining a scaling parameter for each of the at least one symbol comprises:

processing each symbol by using the scaling parameter corresponding to each symbol to obtain each reduced symbol, including:

The determining the scaling parameter corresponding to each symbol in the at least one symbol includes:

6. A method of transmitting information, comprising:

receiving first indication information and reduced at least one symbol, wherein the first indication information is used for indicating the position of the at least one symbol and at least one scaling parameter for reducing the at least one symbol;

amplifying the reduced at least one symbol according to the first indication information, wherein the position of the at least one symbol indicated by the first indication information is used for determining the reduced at least one symbol to obtain an amplified at least one symbol;

The position of the at least one symbol is determined in the modulated symbol according to at least one amplitude threshold value, and the at least one amplitude threshold value is determined by a self-adaptive method according to the fact that an input signal is the modulated symbol and an output signal is the reduced at least one symbol;

wherein the at least one symbol is a modulation symbol of user plane data in the modulated symbols.

7. The method according to claim 6, wherein the first indication information is specifically configured to indicate a location of at least one scaled real part and a scaling parameter corresponding to each scaled real part, and/or wherein the first indication information is specifically configured to indicate a location of at least one scaled imaginary part and a scaling parameter corresponding to each scaled imaginary part; the amplifying processing is performed on the at least one reduced symbol according to the first indication information to obtain at least one amplified symbol, which includes:

The amplifying processing is performed on the at least one reduced symbol according to the first indication information to obtain at least one amplified symbol, which includes:

determining at least one imaginary part to be scaled according to the position of the at least one scaled imaginary part;

amplifying each imaginary part to be scaled by utilizing a scaling parameter corresponding to each imaginary part to be scaled to obtain amplified imaginary parts;

the method further comprises the steps of:

and combining the amplified real part and/or the amplified imaginary part to obtain an amplified symbol.

8. An apparatus for transmitting information, comprising:

a processing unit, configured to determine a position of at least one symbol in the modulated symbols according to at least one amplitude threshold value;

the processing unit is further configured to perform reduction processing on the amplitude of the at least one symbol according to at least one scaling parameter corresponding to the at least one amplitude threshold value, so as to obtain a reduced at least one symbol;

a transceiver unit, configured to send first indication information and the reduced at least one symbol to a receiving end, where the first indication information is used to indicate a position of the at least one symbol and the at least one scaling parameter, and the position of the at least one symbol indicated by the first indication information is used for the receiving end to determine the reduced at least one symbol;

The processing unit is further configured to determine the at least one amplitude threshold value by using an adaptive method with an input signal as the modulated symbol and an output signal as the reduced at least one symbol;

the processing unit is further configured to obtain information bits after encoding, where the modulated symbol is a modulation symbol of user plane data obtained by modulating the encoded information bits.

9. The apparatus according to claim 8, wherein the processing unit is specifically configured to:

10. The apparatus according to claim 9, wherein the processing unit is specifically configured to:

11. The apparatus of claim 10, wherein the at least one amplitude threshold value comprises a real signal threshold value and an imaginary signal threshold value, the processing unit further configured to:

Separating the modulated symbols into a real part and an imaginary part;

the processing unit is specifically configured to:

12. The apparatus according to claim 11, wherein the processing unit is specifically configured to:

The processing unit is specifically configured to:

13. An apparatus for transmitting information, comprising:

a transceiver unit, configured to receive first indication information and reduced at least one symbol, where the first indication information is used to indicate a position of the at least one symbol and at least one scaling parameter used to reduce the at least one symbol;

the processing unit is used for amplifying the reduced at least one symbol according to the first indication information, wherein the position of the at least one symbol indicated by the first indication information is used for determining the reduced at least one symbol to obtain the amplified at least one symbol;

14. The apparatus according to claim 13, wherein the first indication information is specifically configured to indicate a location of at least one scaled real part and a scaling parameter corresponding to each scaled real part, and/or the first indication information is specifically configured to indicate a location of at least one scaled imaginary part and a scaling parameter corresponding to each scaled imaginary part;

the processing unit is specifically configured to:

The processing unit is further configured to:

15. An apparatus comprising a processor and a memory, the processor coupled to the memory, the memory for storing a computer program or instructions, the processor for executing the computer program or instructions in the memory such that the method of any one of claims 1 to 5 is performed.

16. An apparatus comprising a processor and a memory, the processor coupled to the memory, the memory for storing a computer program or instructions, the processor for executing the computer program or instructions in the memory such that the method of any one of claims 6 or 7 is performed.

17. A computer-readable storage medium, characterized in that a program or instructions for implementing the method of any one of claims 1 to 5 are stored.

18. A computer-readable storage medium, characterized in that a program or instructions for implementing the method of any one of claims 6 or 7 are stored.