WO2024046224A1

WO2024046224A1 - Information processing method and apparatus, communication device and readable storage medium

Info

Publication number: WO2024046224A1
Application number: PCT/CN2023/114869
Authority: WO
Inventors: 黄伟
Original assignee: 维沃移动通信有限公司
Priority date: 2022-08-31
Filing date: 2023-08-25
Publication date: 2024-03-07
Also published as: CN117675488A

Abstract

The present application relates to the technical field of communications. Disclosed are an information processing method and apparatus, a communication device and a readable storage medium. In an embodiment of the present application, the information processing method comprises: a first device determining a modulation parameter for differential amplitude phase modulation; performing differential amplitude phase modulation on first information according to the modulation parameter, and obtaining a first signal; and sending the first signal to a second device.

Description

Information processing methods, devices, communication equipment and readable storage media

Cross-references to related applications

This application claims priority from Chinese Patent Application No. 202211065941.4 filed in China on August 31, 2022, the entire content of which is incorporated herein by reference.

Technical field

This application belongs to the field of communication technology, and specifically relates to an information processing method, device, communication equipment and readable storage medium.

Background technique

In signal modulation, high-order modulation is one of the effective ways to improve spectral efficiency. Traditional high-order modulations such as Quadrature Amplitude Modulation (QAM) and Amplitude Phase Shift Keying (APSK) are absolute modulations, and their modulation performance is susceptible to factors such as channel multipath, phase noise, and frequency offset. Influence. Therefore, when using high-order modulation such as QAM and APSK, the transmitter needs to send a pilot signal for demodulation, and the receiver needs to perform channel estimation and channel equalization before demodulation can be completed, otherwise poor demodulation performance will occur. In this case, how to implement high-order modulation to improve spectral efficiency while simplifying the signal processing process is an urgent problem that needs to be solved.

Contents of the invention

Embodiments of the present application provide an information processing method, device, communication equipment and readable storage medium, which can solve the problem of how to simplify the signal processing process while implementing high-order modulation to improve spectrum efficiency.

The first aspect provides an information processing method, including:

A first device determines modulation parameters for differential amplitude phase modulation;

The first device performs differential amplitude phase modulation on the first information according to the modulation parameter to obtain the first signal;

The first device sends the first signal to the second device.

The second aspect provides an information processing method, including:

a second device determines demodulation parameters for differential amplitude phase modulation;

the second device receives a first signal from the first device;

The second device demodulates the first signal according to the demodulation parameter to obtain first information.

The third aspect provides an information processing method, including:

The third device sends the first configuration information to the first device, and/or sends the second configuration information to the second device;

Wherein, the first configuration information is used to configure modulation parameters of differential amplitude phase modulation, and the second configuration information is used to configure modulation parameters or demodulation parameters of differential amplitude phase modulation.

In a fourth aspect, an information processing device is provided, applied to the first device, including:

The first determination module is used to determine the modulation parameters of differential amplitude phase modulation;

A modulation module, configured to perform differential amplitude phase modulation on the first information according to the modulation parameter to obtain the first signal;

The first sending module is used to send the first signal to the second device.

In a fifth aspect, an information processing device is provided, applied to a second device, including:

a second determination module, used to determine the demodulation parameters of differential amplitude phase modulation;

a receiving module, configured to receive the first signal from the first device;

A demodulation module, configured to demodulate the first signal according to the demodulation parameters to obtain first information.

A sixth aspect provides an information processing device applied to a third device, including:

A third sending module, configured to send first configuration information to the first device and/or send second configuration information to the second device;

In a seventh aspect, a communication device is provided, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the first The steps of the method described in the second aspect, or the steps of implementing the method described in the second aspect, or the steps of implementing the method described in the third aspect.

In an eighth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the second aspect, or the steps of implementing the method described in the third aspect.

In a ninth aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method described in the first aspect. or implement the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect.

In a tenth aspect, a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method as described in the first aspect The steps of the method, or the steps of implementing the method as described in the second aspect, or the steps of implementing the method as described in the third aspect.

In an eleventh aspect, a communication system is provided. The communication system includes at least two of a first device, a second device, and a third device. The first device is used to implement the method as described in the first aspect. The second device is used to implement the steps of the method described in the second aspect, and the third device is used to implement the steps of the method described in the third aspect.

In this embodiment of the present application, the first device can determine the modulation parameter of differential amplitude phase modulation, and perform differential amplitude phase modulation on the first information according to the modulation parameter to obtain and send the first signal. As a result, differential amplitude phase modulation can be used for communication, which can improve spectrum efficiency while ensuring high power efficiency. Moreover, due to the use of differential amplitude modulation, the communication system can have better resistance to channel multipath and signal interference. influence, thus making The transmitter does not need to send pilots and the receiver does not need to perform channel estimation and channel equalization to complete signal demodulation, thereby simplifying the signal processing process.

Description of drawings

Figure 1 is a block diagram of a wireless communication system applicable to the embodiment of the present application;

Figure 2A is a block diagram of a single-base backscatter communication system applicable to the embodiment of the present application;

Figure 2B is a block diagram of a bistatic backscatter communication system applicable to the embodiment of the present application;

Figure 3 is a schematic diagram of the DAPSK modulation process in the embodiment of the present application;

Figure 4A is a schematic diagram of the DAPSK demodulation process in the embodiment of the present application;

Figure 4B is a schematic diagram of the DASK demodulation process in the embodiment of the present application;

Figure 5 is a flow chart of an information processing method provided by an embodiment of the present application;

Figure 6 is a flow chart of another information processing method provided by an embodiment of the present application;

Figure 7 is a flow chart of another information processing method provided by an embodiment of the present application;

Figure 8 is a schematic structural diagram of an information processing device provided by an embodiment of the present application;

Figure 9 is a schematic structural diagram of another information processing device provided by an embodiment of the present application;

Figure 10 is a schematic structural diagram of another information processing device provided by an embodiment of the present application;

Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

It is worth pointing out that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used for both the systems and radio technologies mentioned above, and for Other systems and radio technologies, such as New Radio (NR) systems, or ^6th Generation (6G) communication systems, etc.

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, or a super mobile personal computer. (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Device) , vehicle user equipment (VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side equipment 12 may include access network equipment or core network equipment, where the access network equipment may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or wireless access network unit. Access network equipment can include base stations, Wireless Local Area Network (WLAN) access points or WiFi nodes, etc. The base station can be called Node B, Evolved Node B (eNB), access point, base transceiver station ( Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node, sending and receiving point ( Transmitting Receiving Point (TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms.

In order to facilitate understanding of the embodiments of the present application, the following content is first described.

Backscatter Communication (BSC) refers to a backscatter communication device that uses radio frequency signals from other devices or the environment to perform signal modulation to transmit its own information. It is a relatively typical passive IoT device. The basic building blocks and main functions of the backscatter communication transmitter include:

-Antenna unit: used to receive radio frequency signals and control commands, and at the same time used to send modulated backscattered signals.

-Energy collection module or energy supply module: This module is used for backscatter communication equipment to collect radio frequency energy, or other energy collection, including but not limited to solar energy, kinetic energy, mechanical energy, thermal energy, etc. In addition to the energy harvesting module, it may also include a battery power supply module. In this case, the backscatter communication device is a semi-passive device. The energy harvesting module or energy supply module supplies power to all other modules in the device.

-Microcontroller: including controlling baseband signal processing, energy storage or data scheduling status, switch switching, system synchronization, etc.

-Signal receiving module: used to demodulate control commands or data sent by the backscatter communication receiving end or other network nodes.

-Channel coding and modulation module: Channel coding and signal modulation are performed under the control of the controller, and the modulation is achieved by selecting different load impedances under the control of the controller through the selection switch.

-Memory or sensing module: used to store identification (identifier, ID) information, location information or sensing data of the device.

In addition to the above-mentioned typical building blocks, the future backscatter communication transmitter can also integrate tunnel diode amplifier modules, low-noise amplifier modules, etc. to improve the receiving sensitivity and transmit power of the transmitter.

Optional, the basic building blocks and main functions of the backscatter communication receiver include:

-Antenna unit: used to receive the modulated backscattered signal.

-Backscatter signal detection module: used to detect the backscatter signal sent by the backscatter communication transmitter, including but not limited to Amplitude Shift Keying (ASK) detection, Phase-shift keying (Phase- Shift Keying (PSK) detection, frequency shift keying (Frequency-Shift Keying (FSK)) detection or quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) detection, etc.

-Demodulation and decoding module: Demodulate and decode the detected signal to restore the original information flow.

Backscatter communication equipment controls the reflection coefficient Γ of the modulation circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, phase, etc. of the incident signal to achieve signal modulation. The reflection coefficient of the signal can be characterized as:

Among them, Z ₀ is the antenna characteristic impedance, Z ₁ is the load impedance, j represents a complex number, and θ _T represents the phase. Assuming that the incident signal is S _in (t), the output signal is Therefore, corresponding amplitude modulation, frequency modulation or phase modulation can be achieved by reasonably controlling the reflection coefficient. Based on this, backscatter communication equipment can be tags in traditional radio frequency identification (Radio Frequency Identification, RFID), or passive/semi-passive Internet of Things (IoT). ). For convenience, they are collectively referred to as BSC equipment here.

Figure 2A shows a schematic diagram of a Monostatic Backscatter Communication System (MBCSs) to which embodiments of the present application can be applied. The MBCS system includes a BSC sending device (such as a tag) and a reader. The reader contains an RF source and a BSC receiving device. The RF source is used to generate RF signals to power the BSC sending device/Tag. . The BSC transmitting device backscatters the modulated RF signal, and the BSC receiving device in the Reader receives the backscattered signal and demodulates the signal. Since the RF radio frequency signal sent from the BSC transmitting equipment will go through the double distance effect caused by the signal attenuation of the round-trip signal, the energy of the signal is attenuated greatly. Therefore, the MBCS system is generally used for short-distance backscatter communication, such as traditional RFID. application.

FIG. 2B shows a schematic diagram of a bistatic backscatter communication system (Bistatic Backscatter Communication Systems, BBCSs) to which embodiments of the present application can be applied. Different from monostatic backscatter communication systems (MBCSs), the RF radio frequency source, BSC transmitting equipment and BSC receiving equipment in the BBCS system are separated, so the problem of large round-trip signal attenuation can be avoided. In addition, the performance of the BBCS communication system can be further improved through reasonable placement of RF sources. It is worth noting that the ambient backscatter communication system ABCSs is also a type of bistatic backscatter communication system, but unlike the BBCS system where the RF source is a dedicated signal RF source, the RF source in the ABCS system can be available RF sources in the environment, such as TV towers, cellular base stations, WiFi signals, Bluetooth signals, etc.

Scenarios applicable to the embodiments of this application include but are not limited to backscatter communications.

Differential Amplitude Phase Shift Keying (DAPSK):

DAPSK is a joint modulation of differential amplitude modulation (Differential Amplitude Shift Keying, DASK) and differential phase modulation (Differential Phase Shift Keying, DAPSK). It not only has the advantage of differential modulation that it can be demodulated without a pilot, but also can perform demodulation in both amplitude and frequency. Joint modulation is performed across multiple dimensions to achieve high frequency band utilization.

The set expression mapped by DAPSK in space is as follows:

In the above formula, _Na represents the number or order of amplitude modulation states, m _a represents the number of bits required for amplitude modulation. N _p represents the number or order of states of phase modulation, m _p represents the number of bits required for phase modulation. M=N _a ·N _p represents the number or order of all states of DAPSK modulation, and m=m _a +m _p represents the number of bits required for DAPSK modulation. α represents the amplitude division factor in DAPSK modulation. Represents the modulation phase, with:

The amplitude division factor α in DAPSK modulation is determined based on the modulation state number M and the channel state, and the amplitude value of DAPSK modulation can be determined by α. Table 1 gives a typical value of α value under different modulation orders under Rician fading channel with Rician distribution:

Table 1

For DAPSK modulation, a possible implementation can be divided into two steps: first, obtain the differential coefficient A _k at the current time (time k) based on the m _a and m _p bit bit streams, and then convert the obtained differential coefficient A _K is multiplied by the symbol _sk-1 at the previous moment to obtain the modulated symbol _sk at the current moment. The specific process is shown in Figure 3.

Specifically, as shown in Figure 3, after the m-bit input bit stream undergoes serial-to-parallel conversion, a m _a -bit differential amplitude modulation bit stream and an m _p -bit differential phase modulation bit stream are formed, and then the m _a- bit differential amplitude modulation bit stream is formed. After the bit stream is amplitude mapped, γ _k is generated, and the m _p -bit differential phase modulation bit stream is phase mapped to generate Δφ _k . After transformation, γ _k and Δφ _k will generate a differential coefficient A _k , which is then compared with the previous moment. The DAPSK modulation symbol _sk-1 is obtained and multiplied to obtain the modulated symbol _sk at the current moment, as shown below:

Among them, the difference coefficient A _k can be expressed as:

Δφ _k can be defined as: Δφ _k = (φ _k -φ _k-1 ) mod 2π,k≥2.

Further you can get:

After simplification, we can get:
a _k = γ _k ·a _k-1
φ _k =φ _k-1 + Δφ _k

Taking 16-DAPSK as an example, the modulation method is jointly implemented by 2DASK modulation and 8DPSK modulation. The amplitude division factor of 2DASK modulation is α=2. Combined with 8DPSK modulation, the maximum modulation amplitude value of DAPSK does not exceed 2. Since the amplitude 2DASK modulation process is to multiply the amplitude transformation coefficient γ _k with the amplitude modulation value a _k-1 at the previous moment to obtain the amplitude modulation value a _k at the current moment, the relationship between the amplitude modulation bits and γ _k can be shown in Table 2 below. . When the input amplitude bit is 1 and the amplitude modulation value at the previous moment a _k-1 = 1, then the amplitude modulation value at the current moment a _k =γ _k ·ak _-1 =1×α=2, which means that the amplitude is given by The inner circle is modulated to the outer circle. The amplitude modulation value of the current moment a _k-1 =2, and the current input bit is 1, then the amplitude modulation value of the current moment a _k =γ _k ·ak _-1 =α×1/α=1, indicating the amplitude Modulate from the outer circle to the inner circle to maintain the mutual conversion between the inner and outer circles.

Table 2

8DPSK is eight-phase differential phase shift keying, with eight different phase values. The corresponding phase value can be mapped using the input m _p- bit phase modulation bits, and then obtained based on the absolute phase value φ _k-1 at the previous moment. The absolute phase value φ _k at the current moment. Table 3 shows the absolute correspondence between phase modulation bits and phase values in 8DPSK. The phase modulation bits are encoded using the Gray method. This encoding has only one bit difference between the two codes before and after, which can reduce bit errors to a certain extent. Rate.

table 3

After knowing the absolute phase value at the previous moment, the absolute phase value at the current moment can be obtained according to the corresponding relationship between the phase modulation bits and the phase value. Taking the initial phase π/8 as an example, the input phase modulation bits are:

m _p phase modulation bits: 101,001,110,001,110,100,100,111, the coding table is shown in Table 4 below:

Table 4

Furthermore, the mapping table between the input bits and transform coefficients of 4DASK modulation can be shown in Table 5 below.

table 5

The demodulation process of DAPSK is the inverse process of modulation, which requires the amplitude and phase to be differentiated. As shown in Figure 4A, after receiving the signal r _k (t), the receiving end performs differential amplitude DASK demodulation and differential phase DPSK demodulation respectively. DASK demodulation will inversely map out m _a bit bit stream (i.e., bit information), DPSK demodulation will inversely map out the m _p -bit bit stream; after that, the m _a- bit bit stream and the m _p -bit bit stream are converted into parallel-to-serial and then synthesized into an output bit stream. where r _k (t) can be expressed as:

In the above formula, Δf is the carrier frequency offset and Doppler frequency offset, is the phase shift.

Taking 16-DAPSK demodulation as an example, the demodulation end is 2DASK demodulation and 8DAPSK demodulation. The 2DASK demodulation process is shown in Figure 4B. The received signal r _k (t) undergoes a modulo operation to obtain the amplitude value ρ _k of r _k (t). After delaying the amplitude value ρ _k for a period T, it is then combined with Divide the amplitude value ρ _k (this is similar to taking the reciprocal of ρ _k ), and the result of the division will be a value, using the decision threshold, the m _a- bit bit stream can be demodulated and recovered. The process is as follows:

Among them, |·| represents the modulo operation. get After passing the decision threshold, the m _a- bit bit stream can be demodulated and recovered. The value of the decision threshold can be as follows:

When M=16, the demodulation threshold is determined according to the amplitude division factor defined in the modulation process. For example, according to α=2 defined in the modulation coding process, it can be seen that:

The demodulation process and corresponding thresholds of 4DASK can be shown in Table 6 below:

Table 6

The phase demodulation process of 8DPSK is that the signal r _k (t) received at the receiving end undergoes a phase operation to obtain the phase θ _k , then the phase of the k-th symbol is:

In the above formula, ∠· represents the angle operation. Delay θ _k by one clock cycle T to obtain θ _k-1 , and then subtract θ _k and θ _k-1 to obtain a phase difference Δθ _k , that is:

It can be seen from the above equation that the Doppler frequency offset and phase offset introduced during the channel transmission process of the signal are all eliminated after the differential operation. This also shows that differential modulation has the advantage of resisting frequency offset.

After solving the difference operation to obtain Δθ _k , a phase judgment operation is then performed to obtain The process of phase determination is as follows:

in, Before changing the phase value After reverse mapping, the m _p -bit bit stream can be recovered.

The information processing method, device, communication device and readable storage medium provided by the embodiments of the present application will be described in detail through some embodiments and application scenarios in conjunction with the accompanying drawings.

Please refer to Figure 5. Figure 5 is a flow chart of an information processing method provided by an embodiment of the present application. The method is applied to a first device. The first device is the transmitter/modulator in the communication system, and can optionally be a terminal. , network side equipment or BSC sending equipment in the BSC system. The BSC sending equipment includes but is not limited to tags, passive or semi-passive Internet of Things IoT devices, etc. As shown in Figure 5, the method includes the following steps:

Step 51: The first device determines the modulation parameters of differential amplitude phase modulation;

Step 52: The first device performs differential amplitude phase modulation on the first information according to the modulation parameters to obtain the first signal;

Step 53: The first device sends the first signal to the second device.

In this embodiment, the above modulation parameters include but are not limited to power division factor, initial amplitude value, initial phase value, modulation order, etc. For the specific process of the above differential amplitude phase modulation, please refer to the description of Figure 3 and will not be described again here. The first information is the bit information to be modulated, which can be an input bit stream, etc.

In some embodiments, the above-mentioned second device is the receiving end/demodulating end in the communication system, and can optionally be the BSC receiving device in the BSC system, including but not limited to a reader/writer device, etc.

According to the information processing method of the embodiment of the present application, the first device can determine the modulation parameter of differential amplitude phase modulation, and perform differential amplitude phase modulation on the first information according to the modulation parameter to obtain and send the first signal. As a result, differential amplitude phase modulation can be used for communication, so that while ensuring high frequency band utilization, the transmitter does not need to send pilots and the receiver does not need to perform channel estimation and channel equalization to complete signal demodulation. This simplifies the design of the transceiver and provides better transmission robustness to different channel environments. Furthermore, backscattering communication based on signal modulation based on load impedance has different abilities to achieve amplitude modulation and phase modulation. Therefore, DAPSK, whose modulation order can be flexibly configured, is more suitable for reverse scattering communication than QAM modulation, which requires consistent amplitude modulation and phase modulation capabilities. Scatter communication.

In the embodiment of this application, the first device can independently determine the modulation parameters of differential amplitude phase modulation, or can determine the modulation parameters of differential amplitude phase modulation based on the configuration of other devices, as described below.

Optionally, the first device may determine the modulation parameters of differential amplitude phase modulation according to at least one of the following:

First configuration information received from a third device, the first configuration information is used to configure the modulation parameters of differential amplitude phase modulation; the third device is a device different from the first device and the second device, such as a system terminal or network side equipment, etc.;

capabilities of the first device and/or capabilities of the second device;

Channel status information;

Default configuration information and/or factory setting information of the first device; for example, the default configuration information is the default configured modulation parameters, and the factory setting information is the factory configured modulation parameters;

Default configuration information and/or factory setting information of the second device; for example, the default configuration information is the default configured modulation parameters, and the factory setting information is the factory configured modulation parameters.

In this way, the modulation parameters of differential amplitude phase modulation can be flexibly determined, making it applicable to different channel environments, amplitude modulation and phase modulation capabilities, and/or backscattering communications under transceiver antennas, etc.

In some embodiments, the first device may determine the modulation parameters of differential amplitude phase modulation according to the first configuration information received from the third device; or, according to the capabilities of the first device and/or the second device, the channel state information and the third device. Default configuration information and/or factory setting information of the first device/second device, etc., determine the modulation parameters of differential amplitude phase modulation; or, determine part of the modulation parameters of differential amplitude phase modulation according to the first configuration information received from the third device , and at the same time, determine some modulation parameters of the differential amplitude phase modulation according to the capabilities of the first device and/or the second device, channel state information, and default configuration information and/or factory setting information of the first device/second device.

Optionally, the first configuration information may include at least one of the following:

Amplitude division factor α;

Initial amplitude value a ₀ ;

Initial phase value θ ₀ ;

Modulation order.

The above amplitude division factors can be called power division factors.

Optionally, the modulation order in the first configuration information may include at least one of the following:

The modulation order of differential amplitude modulation DASK in differential amplitude phase modulation DAPSK;

The modulation order of differential phase modulation DPSK in differential amplitude phase modulation DAPSK;

Modulation order of differential amplitude phase modulation DAPSK.

In some embodiments, the modulation order in the first configuration information may include any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

The modulation order of DASK is M, the modulation order of DPSK is N, and the modulation order of DAPSK is M×N.

Optionally, the first configuration information may be carried through at least one of the following: Layer 1 signaling, Medium Access Control Control Element (MAC CE), Radio Resource Control (Radio Resource Control, RRC) Signaling etc. This layer 1 signaling is, for example, downlink control information (Downlink Control Information, DCI), secondary link control information (Sidelink Control Information, SCI), or preamble sequence.

Optionally, the capabilities of the first device may include at least one of the following:

The amplitude modulation capability of the first device, for example, includes at least one of the following: the amplitude information of the supported adjustable reflected signal, the number of states of continuous amplitude modulation and corresponding continuous features, the number of discrete amplitude modulation and corresponding states of discrete features, etc.;

The phase modulation capability of the first device, for example, includes at least one of the following: supported phase information of adjustable reflected signals, continuous phase modulation and the number of states of corresponding continuous features, discrete phase modulation and the number of states of corresponding discrete features, etc.

Optionally, the capabilities of the second device may include at least one of the following:

The amplitude modulation capability of the second device, for example, includes at least one of the following: the amplitude information of the supported adjustable reflected signal, the number of states of continuous amplitude modulation and the corresponding continuous characteristics, the number of discrete amplitude modulation and the corresponding states of the discrete characteristics, etc.;

The phase modulation capability of the second device, for example, includes at least one of the following: phase information of the supported adjustable reflected signal, continuous phase modulation and the number of states of the corresponding continuous features, discrete phase modulation and the number of states of the corresponding discrete features, etc.

In this way, with the amplitude modulation capability and/or phase modulation capability of the first device, and/or with the amplitude modulation capability and/or phase modulation capability of the second device, the modulation parameters of the corresponding differential amplitude phase modulation can be accurately determined.

Optionally, the capabilities of the first device and/or the second device may also include respective antenna capabilities to consider the transceiver capabilities of the transceiver end when determining the modulation parameters (such as amplitude division factors, etc.) of the corresponding differential amplitude phase modulation.

Optionally, the first device may send the capability of the first device to the second device and/or the third device, where the capability includes at least one of the following: the amplitude modulation capability of the first device, the phase modulation capability of the first device. This allows the second device and/or the third device to learn the capabilities of the first device, so as to assist in determining the modulation parameters of differential amplitude phase modulation.

In some embodiments, after entering the connected state, the first device reports its capability information to the second device and/or the third device through signaling. The signaling information is, for example, a terminal capability inquiry-terminal capability message (UE Capability message). Inquiry-UE Capability Information).

In some embodiments, after entering the connected state, the first device sends signaling information to the second device and/or the third device. Report its own capability information, the signaling information is, for example, a terminal assistance message (UE Assistance Information).

In some embodiments, during the initial registration or addition process, the first device actively reports its capability information to the second device and/or the third device through a signaling message. The signaling message is, for example, an Initial UE message (Initial UE message). ).

Optionally, the above channel state information may include at least one of the following:

Historical channel state information, such as channel state information recorded when the first device and/or the second device were stationed;

Channel state information obtained from other devices located close to the first device;

Real-time channel state information of the first device and/or the second device, for example, may be estimated or information state information obtained through other methods.

In this embodiment of the present application, the first device may send second information to the second device, where the second information is used to indicate the modulation parameters or demodulation parameters of the differential amplitude and phase modulation, so that the second device can determine the modulation parameters corresponding to the differential amplitude and phase modulation. Demodulation parameters.

Optionally, the second information may include at least one of the following:

Amplitude division factor α;

Initial amplitude value a ₀ ;

Initial phase value θ ₀ ;

Modulation order.

Optionally, the modulation order in the second information may include at least one of the following:

Modulation order of differential amplitude phase modulation DAPSK.

In some embodiments, the modulation order in the second information may include any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

Optionally, the first device may send the second information to the second device through at least one of the following: layer 1 signaling, MAC CE, and RRC signaling. The layer 1 signaling is, for example, DCI, SCI or preamble sequence.

Please refer to Figure 6. Figure 6 is a flow chart of an information processing method provided by an embodiment of the present application. The method is applied to a second device. The second device is the receiving end/demodulating end in the communication system. It can be optionally Terminal, network side equipment or BSC receiving equipment in the BSC system. The BSC receiving equipment includes but is not limited to readers and writers. As shown in Figure 6, the method includes the following steps:

Step 61: The second device determines the demodulation parameters of differential amplitude phase modulation;

Step 62: The second device receives the first signal from the first device;

Step 63: The second device demodulates the first signal according to the demodulation parameter to obtain the first information.

In this embodiment, the above demodulation parameters are the same as the corresponding modulation parameters, which may include but are not limited to power division factors, Initial amplitude value, initial phase value, modulation order, etc. The above-mentioned demodulation is specifically the demodulation corresponding to differential amplitude phase modulation. Please refer to the description of FIG. 4A and FIG. 4B and will not be described again here. The first signal is a signal generated by differential amplitude phase modulation.

In some embodiments, the above-mentioned first device is the transmitting end/modulating end in the communication system, and can optionally be the BSC transmitting device in the BSC system, including but not limited to tags, passive or semi-passive Internet of Things IoT devices. wait.

According to the information processing method of the embodiment of the present application, the second device can determine the demodulation parameters of differential amplitude phase modulation, receive the first signal from the first device, and demodulate the first signal according to the demodulation parameters. As a result, differential amplitude phase modulation can be used for communication, so that while ensuring high frequency band utilization, the transmitter does not need to send pilots and the receiver does not need to perform channel estimation and channel equalization to complete signal demodulation. This simplifies the design of the transceiver and provides better transmission robustness to different channel environments.

In the embodiment of the present application, the second device can independently determine the demodulation parameters of differential amplitude phase modulation, or can determine the demodulation parameters of differential amplitude phase modulation based on the configuration of other devices and/or the instructions of the first device, as described below.

Optionally, the second device can determine the demodulation parameters of differential amplitude phase modulation according to at least one of the following:

second configuration information received from a third device, the second configuration information being used to configure modulation parameters or demodulation parameters of differential amplitude phase modulation; the third device is a device different from the first device and the second device, For example, it can be a system-side or network-side device;

Second information received from the first device, the second information is used to indicate the modulation parameter or demodulation parameter of differential amplitude phase modulation; since the demodulation parameter is the same as the corresponding modulation parameter, the modulation parameter indicated based on this second information The demodulation parameters can be determined;

capabilities of the first device and/or capabilities of the second device;

Channel status information;

In this way, the demodulation parameters of differential amplitude phase modulation can be flexibly determined, thereby enabling the communication system to flexibly implement differential amplitude phase modulation.

Optionally, the second configuration information may include at least one of the following:

Amplitude division factor α;

Initial amplitude value a ₀ ;

Initial phase value θ ₀ ;

Modulation order.

Optionally, the modulation order in the second configuration information may include at least one of the following:

Modulation order of differential amplitude phase modulation DAPSK.

In some embodiments, the modulation order in the second configuration information may include any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

Optionally, the second information may include at least one of the following:

Amplitude division factor α;

Initial amplitude value a ₀ ;

Initial phase value θ ₀ ;

Modulation order.

Modulation order of differential amplitude phase modulation DAPSK.

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

Optionally, the second device can determine the demodulation parameters of the differential amplitude phase modulation according to the second configuration information received from the third device; or, according to the second information received from the first device, determine the demodulation parameters of the differential amplitude phase modulation. Modulation parameters; or, determine demodulation parameters of differential amplitude phase modulation according to the second configuration information received from the third device and the second information received from the first device.

In some embodiments, when determining the demodulation parameters of differential amplitude phase modulation according to the second configuration information and the second information, any of the following methods may be used:

1) The second information includes: amplitude division factor α, initial amplitude value a ₀ , and initial phase value θ ₀ ; the second configuration information includes any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

2) The second configuration information includes: amplitude division factor α, initial amplitude value a ₀ , and initial phase value θ ₀ ; the second information includes any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

3) The second configuration information includes: initial amplitude value a ₀ , initial phase value θ ₀ ; the second information includes amplitude division factor α, and any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

4) The second information includes: initial amplitude value a ₀ , initial phase value θ ₀ ; the second configuration information includes amplitude division factor α, and any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

5) The second configuration information includes: the amplitude division factor α; the second information includes the initial amplitude value a ₀ , the initial phase value θ ₀ , and any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

6) The second information includes: amplitude division factor α; the second configuration information includes initial amplitude value a ₀ , initial phase value θ ₀ , and any of the following:

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

The amplitude modulation capability of the first device, for example, includes at least one of the following: supported adjustable amplitude information of the reflected signal, Continuous amplitude modulation and the number of states of the corresponding continuous features, discrete amplitude modulation and the number of states of the corresponding discrete features, etc.;

In this way, by means of the amplitude modulation capability and/or phase modulation capability of the first device, and/or by means of the amplitude modulation capability and/or phase modulation capability of the second device, the demodulation parameters of the corresponding differential amplitude phase modulation can be accurately determined.

Optionally, the second information is received by the second device through at least one of the following: layer 1 signaling, MAC CE, and RRC signaling. The layer 1 signaling is, for example, DCI, SCI or preamble sequence.

Optionally, the second configuration information may be carried through at least one of the following: layer 1 signaling, MAC CE, and RRC signaling. The layer 1 signaling is, for example, DCI, SCI or preamble sequence.

Optionally, the second device may send the capability of the second device to the first device and/or the third device, where the capability includes at least one of the following: the amplitude modulation capability of the second device and the phase modulation capability of the second device. This allows the first device and/or the third device to learn the capabilities of the second device, so as to assist in determining the modulation parameters of differential amplitude phase modulation.

In some embodiments, after entering the connected state, the second device reports its capability information to the first device and/or the third device through signaling. The signaling information is, for example, UE Capability Inquiry-UE Capability Information.

In some embodiments, after entering the connected state, the second device reports its capability information to the first device and/or the third device through signaling information. The signaling information is, for example, UE Assistance Information.

In some embodiments, during the initial registration or addition process, the second device actively reports its capability information to the first device and/or the third device through a signaling message, such as an Initial UE message.

Please refer to Figure 7. Figure 7 is a flow chart of an information processing method provided by an embodiment of the present application. The method is applied to a third device. The third device is a device different from the first device and the second device. For example, it can It is a system-side or network-side device, etc. As shown in Figure 7, the method includes the following steps:

Step 71: The third device sends the first configuration information to the first device, and/or sends the second configuration information to the second device.

In this embodiment, the first configuration information is used to configure modulation parameters of differential amplitude phase modulation, and the second configuration information is used to configure modulation parameters or demodulation parameters of differential amplitude phase modulation.

Optionally, the third device can send the first configuration information to the first device through at least one of the following: layer 1 signaling, MAC CE, and RRC signaling. The layer 1 signaling is, for example, DCI, SCI or preamble sequence.

Optionally, the third device may send the second configuration information to the second device through at least one of the following: Layer 1 signaling, MAC CE, RRC signaling. The layer 1 signaling is, for example, DCI, SCI or preamble sequence.

The information processing method of the embodiment of the present application can configure the modulation parameters/demodulation parameters of differential amplitude and phase modulation for the first device and/or the second device, thereby realizing communication using differential amplitude and phase modulation DAPSK, so that the communication system can be flexible Implementation of DAPSK modulation and demodulation.

Amplitude division factor α;

Initial amplitude value a ₀ ;

Initial phase value θ ₀ ;

Modulation order.

Modulation order of differential amplitude phase modulation DAPSK.

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

Amplitude division factor α;

Initial amplitude value a ₀ ;

Initial phase value θ ₀ ;

Modulation order.

Modulation order of differential amplitude phase modulation DAPSK.

The modulation order of DASK is M, and the modulation order of DPSK is N;

The modulation order of DASK is M, and the modulation order of DAPSK is M×N;

The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

Optionally, the third device can determine the modulation parameters or demodulation parameters of differential amplitude phase modulation according to at least one of the following:

capabilities of the first device and/or capabilities of the second device;

Channel status information;

The phase modulation capability of the second device, for example, includes at least one of the following: supported phase information of adjustable reflected signals, continuous phase modulation and the number of states of corresponding continuous features, discrete phase modulation and the number of states of corresponding discrete features, etc.

In this way, with the aid of the amplitude modulation capability and/or phase modulation capability of the first device/the second device, and/or with the aid of the amplitude modulation capability and/or phase modulation capability of the second device, the modulation parameters/demodulation of the corresponding differential amplitude phase modulation can be accurately determined parameter.

This application will be described below with reference to specific examples.

Example 1

In this example 1, for the single-base backscatter communication system shown in Figure 2A, by designing the signaling process, configuration parameters, etc., the communication system can flexibly implement adaptive DAPSK modulation and demodulation. The specific process includes:

The system side mainly includes:

(1) Determine the modulation parameters/demodulation parameters of DAPSK at the BSC transmitter based on one or more of the following information:

(a) Capabilities of BSC transmitter and BSC receiver;

(b) Channel status information;

(c) Default configuration information and/or factory setting information of the BSC sender/receiver.

(2) Send the first configuration information to the BSC transmitting end/modulation end, where the first configuration information is used to configure the modulation parameters of differential amplitude phase modulation.

(3) Send second configuration information to the BSC receiving end/demodulation end, where the second configuration information is used to configure the modulation parameters or demodulation parameters of differential amplitude phase modulation.

(4) Send the third configuration information to the BSC receiving end/demodulation end/radio frequency carrier source. The third configuration information includes the time-frequency resources, carrier waveform, modulation method, signal structure, etc. of the radio frequency carrier signal.

(5) The first configuration information, second configuration information and third configuration information can be carried by one of the following:

(a) RRC signaling;

(b)MAC CE;

(c) L1 signaling.

(6) The system end can be a BSC sending end, a BSC receiving end or a third-party network equipment node.

BSC sending end/modulation end mainly includes:

(1) According to the first configuration information, determine the modulation parameters of (M,N)-DAPSK modulation.

(a) The first configuration information includes at least one of the following:

(I) Amplitude division factor α;

(II) Initial amplitude value a ₀ ;

(III) Initial phase value θ ₀ ;

(IV) Modulation order.

(b) The modulation order includes any of the following:

(I) The modulation order M of DASK and the modulation order N of DPSK;

(II) The modulation order M of DASK and the modulation order M×N of DAPSK;

(III) The modulation order of DPSK is N, and the modulation order of DAPSK is M×N;

(iv) The modulation order of DASK is M, the modulation order of DPSK is N, and the modulation order of DAPSK is M×N.

(2) Based on the determined modulation parameters, modulate the first information based on DAPSK to obtain the first signal, modulate the second signal based on the first signal, generate a third signal, and send it to the BSC receiving end;

(a) The second signal is a radio frequency carrier signal sent by the radio frequency carrier source/BSC receiving end;

(b) The third signal is a backscattered signal generated by the first signal and the second signal.

(3) Optionally, send second information for indicating the modulation parameters of DAPSK.

(a) The second information includes at least one of the following:

(I) Amplitude division factor α;

(II) Initial amplitude value a ₀ ;

(III) Initial phase value θ ₀ ;

(IV) Modulation order.

(b) The modulation order includes any of the following:

(I) The modulation order M of DASK and the modulation order N of DPSK;

(II) The modulation order M of DASK and the modulation order M×N of DAPSK;

(c) The second information is carried through L1 signaling (DCI, SCI or preamble sequence), MAC CE or RRC signaling. load.

BSC receiving end/demodulation end/RF carrier end, mainly include:

(1) According to the third configuration information, send the second signal to provide the radio frequency carrier signal to the BSC transmitting end/modulating end.

(a) Send the second signal according to the time-frequency resources, carrier waveform, modulation method, signal structure, etc. of the radio frequency carrier signal/second signal indicated by the third configuration information.

(2) Receive the third signal, construct the first signal, and determine the demodulation parameters of (M, N)-DAPSK modulation of the first signal according to the second configuration information and/or the second information.

(a) Determine demodulation parameters according to the second configuration information;

(b) Determine the demodulation parameter according to the second information, and the demodulation parameter is the same as the corresponding modulation parameter;

(c) Determine the modulation parameters according to the second configuration information and the second information at the same time;

(d) According to the DAPSK modulation principle, construct the first signal from the third signal, such as extracting amplitude information and phase information, removing DC processing, etc.

(3) Based on the determined demodulation parameters, demodulate the constructed first signal to obtain the first information.

Example 2

In this Example 2, for the bistatic backscatter communication system shown in Figure 2B, by designing the signaling process, configuration parameters, etc., the communication system can flexibly implement adaptive DAPSK modulation and demodulation. The specific process includes:

The system side mainly includes:

(a) Capabilities of BSC transmitter and BSC receiver;

(b) Channel status information;

(4) Send third configuration information to the radio frequency carrier source, where the third configuration information includes time-frequency resources, carrier waveform, modulation method, signal structure, etc. of the radio frequency carrier signal/second signal.

(a) RRC signaling;

(b)MAC CE;

(c) L1 signaling.

(6) The system end can be a BSC transmitter, a BSC receiver, a radio frequency source or a third-party network equipment node.

RF source/RF carrier source mainly includes:

According to the third configuration information, the time-frequency resources, carrier waveform, modulation mode, signal structure, etc. of the radio frequency carrier signal are determined, and the second signal/radio frequency carrier signal is sent to the BSC transmitting end.

BSC sending end/modulation end mainly includes:

(1) According to the first configuration information, determine the modulation parameters in (M,N)-DAPSK modulation.

(a) The first configuration information includes at least one of the following:

(I) Amplitude division factor α;

(II) Initial amplitude value a ₀ ;

(III) Initial phase value θ ₀ ;

(IV) Modulation order.

(b) The modulation order includes any of the following:

(I) The modulation order M of DASK and the modulation order N of DPSK;

(II) The modulation order M of DASK and the modulation order M×N of DAPSK;

(a) The second information includes at least one of the following:

(I) Amplitude division factor α;

(II) Initial amplitude value a ₀ ;

(III) Initial phase value θ ₀ ;

(IV) Modulation order.

(b) The modulation order includes any of the following:

(I) The modulation order M of DASK and the modulation order N of DPSK;

(II) The modulation order M of DASK and the modulation order M×N of DAPSK;

(c) The second information is carried through L1 signaling (DCI, SCI or preamble sequence), MAC CE or RRC signaling.

The BSC receiving end/demodulation end mainly includes:

(1) Receive the third signal, construct the first signal, and determine the demodulation parameters of (M, N)-DAPSK modulation of the first signal according to the second configuration information and/or the second information.

(c) simultaneously determine the demodulation parameters according to the second configuration information and the second information;

(2) Based on the determined demodulation parameters, demodulate the constructed first signal to obtain the first information.

For the information processing method provided by the embodiments of the present application, the execution subject may be an information processing device. In the embodiments of the present application, an information processing device executing an information processing method is used as an example to illustrate the information processing device provided by the embodiments of the present application.

Please refer to Figure 8. Figure 8 is a schematic structural diagram of an information processing device provided by an embodiment of the present application. The device is applied to a first device. The first device is a sending end/modulation end in a communication system, and can optionally be a terminal. , network side equipment or BSC sending equipment in the BSC system. The BSC sending equipment includes but is not limited to tags, passive or semi-passive Internet of Things IoT devices, etc. As shown in Figure 8, the information processing device 80 includes:

The first determination module 81 is used to determine the modulation parameters of differential amplitude phase modulation;

Modulation module 82, configured to perform differential amplitude phase modulation on the first information according to the modulation parameters to obtain the first signal;

The first sending module 83 is used to send the first signal to the second device.

Optionally, the first determination module 81 is specifically configured to determine the modulation parameter according to at least one of the following:

First configuration information received from a third device, the first configuration information being used to configure the modulation parameters of the differential amplitude phase modulation;

The capabilities of the first device and/or the capabilities of the second device;

Channel status information;

Default configuration information and/or factory setting information of the first device;

Default configuration information and/or factory setting information of the second device.

Optionally, the first configuration information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.

Optionally, the capabilities of the first device include at least one of the following:

The amplitude modulation capability of the first device;

The phase modulation capability of the first device;

The capabilities of the second device include at least one of the following:

The amplitude modulation capability of the second device;

The phase modulation capability of the second device.

Optionally, the information processing device 80 also includes:

A first sending module, configured to send second information to the second device, where the second information is used to indicate modulation parameters or demodulation parameters of the differential amplitude phase modulation.

Optionally, the second information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.

Optionally, the modulation order includes at least one of the following:

The modulation order of the differential amplitude modulation in the differential amplitude phase modulation;

The modulation order of the differential phase modulation in the differential amplitude phase modulation;

The modulation order of the differential amplitude phase modulation.

Optionally, the first sending module is specifically configured to send the second information to the second device through at least one of the following: layer 1 signaling, MAC CE, and RRC signaling.

Optionally, the first sending module 83 is also used to:

sending the capabilities of the first device to the second device and/or a third device;

Wherein, the capabilities of the first device include at least one of the following:

The amplitude modulation capability of the first device;

The phase modulation capability of the first device.

The information processing device 80 provided by the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 5 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Please refer to Figure 9. Figure 9 is a schematic structural diagram of an information processing device provided by an embodiment of the present application. The device is applied to a second device. The second device is the receiving end/demodulation end in the communication system. It can be optionally Terminal, network side equipment or BSC receiving equipment in the BSC system. The BSC receiving equipment includes but is not limited to readers and writers. As shown in Figure 9, the information processing device 90 includes:

The second determination module 91 is used to determine the demodulation parameters of differential amplitude phase modulation;

The receiving module 92 is used to receive the first signal from the first device;

Demodulation module 93 is configured to demodulate the first signal according to the demodulation parameters to obtain first information.

Optionally, the second determination module 91 is specifically configured to determine the demodulation parameters according to at least one of the following:

Second configuration information received from a third device, the second configuration information being used to configure the modulation parameters or demodulation parameters of the differential amplitude phase modulation;

second information received from the first device, the second information being used to indicate the modulation parameters or demodulation parameters of the differential amplitude phase modulation;

Channel status information;

Optionally, the second configuration information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.

Optionally, the second information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.

Optionally, the modulation order includes at least one of the following:

The modulation order of the differential amplitude phase modulation.

The amplitude modulation capability of the first device;

The phase modulation capability of the first device;

The capabilities of the second device include at least one of the following:

The amplitude modulation capability of the second device;

The phase modulation capability of the second device.

Optionally, the second information is received by the second device through at least one of the following:

Layer 1 signaling, MAC CE, RRC signaling.

Optionally, the information processing device 90 also includes:

a second sending module, configured to send the capabilities of the second device to the first device and/or the third device;

Wherein, the capabilities of the second device include at least one of the following:

The amplitude modulation capability of the second device;

The phase modulation capability of the second device.

The information processing device 90 provided by the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 6 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Please refer to Figure 10. Figure 10 is a schematic structural diagram of an information processing device provided by an embodiment of the present application. The device is applied to a third device. The third device is a device different from the first device and the second device. For example, it can It is a system-side or network-side device, etc. As shown in Figure 10, the information processing device 100 includes:

The third sending module 101 is used to send first configuration information to the first device and/or send second configuration information to the second device;

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.

Optionally, the modulation order includes at least one of the following:

The modulation order of the differential amplitude phase modulation.

Optionally, the information processing device 100 also includes:

A third determination module, configured to determine the modulation parameters or demodulation parameters of the differential amplitude phase modulation according to at least one of the following:

Channel status information;

The amplitude modulation capability of the first device;

The phase modulation capability of the first device;

The capabilities of the second device include at least one of the following:

The amplitude modulation capability of the second device;

The phase modulation capability of the second device.

Optionally, the second sending module 101 is specifically configured to send the first configuration information to the first device through at least one of the following: Layer 1 signaling, MAC CE, and RRC signaling;

And/or, send the second configuration information to the second device through at least one of the following: layer 1 signaling, MAC CE, and RRC signaling.

The information processing device 100 provided by the embodiment of the present application can implement each process implemented by the method embodiment shown in Figure 7 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Optionally, as shown in Figure 11, this embodiment of the present application also provides a communication device 110, which includes a processor 111 and a memory 112. The memory 112 stores programs or instructions that can be run on the processor 111. program or instruction When executed by the processor 111, each step of the above information processing method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details will not be described here. The communication device 110 can be selected as the above-mentioned first device, second device or third device.

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above information processing method embodiment is implemented, and the same can be achieved. The technical effects will not be repeated here to avoid repetition.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the above information processing method embodiments. Each process can achieve the same technical effect. To avoid duplication, it will not be described again here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application further provide a computer program/program product. The computer program/program product is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the above information processing method embodiment. Each process can achieve the same technical effect. To avoid duplication, we will not go into details here.

Embodiments of the present application also provide a communication system, which includes at least two of a first device, a second device, and a third device. The first device can be used to implement information processing as described in Figure 5 above. The second device can be used to implement the steps of the information processing method as described in Figure 6 above, and the third device can be used to implement the steps of the information processing method as described in Figure 7 above.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or device that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

An information processing method that includes:

A first device determines modulation parameters for differential amplitude phase modulation;

The first device performs differential amplitude phase modulation on the first information according to the modulation parameter to obtain the first signal;

The first device sends the first signal to the second device.
The method according to claim 1, wherein determining the modulation parameters of differential amplitude phase modulation includes:

The first device determines the modulation parameter according to at least one of the following:

First configuration information received from a third device, the first configuration information being used to configure the modulation parameters of the differential amplitude phase modulation;

The capabilities of the first device and/or the capabilities of the second device;

Channel status information;

Default configuration information and/or factory setting information of the first device;

Default configuration information and/or factory setting information of the second device.
The method according to claim 2, wherein the first configuration information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.
The method of claim 2, wherein the capabilities of the first device include at least one of the following:

The amplitude modulation capability of the first device;

The phase modulation capability of the first device;

The capabilities of the second device include at least one of the following:

The amplitude modulation capability of the second device;

The phase modulation capability of the second device.
The method of claim 1, further comprising:

The first device sends second information to the second device, where the second information is used to indicate a modulation parameter or a demodulation parameter of the differential amplitude phase modulation.
The method of claim 5, wherein the second information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.
The method according to claim 3 or 6, wherein the modulation order includes at least one of the following:

The modulation order of the differential amplitude modulation in the differential amplitude phase modulation;

The modulation order of the differential phase modulation in the differential amplitude phase modulation;

The modulation order of the differential amplitude phase modulation.
The method according to claim 5, wherein sending the second information to the second device includes:

The first device sends the second information to the second device through at least one of the following:

Layer 1 signaling, media access control control unit MAC CE, radio resource control RRC signaling.
The method of claim 1, further comprising:

The first device sends the capability of the first device to the second device and/or a third device;

Wherein, the capabilities of the first device include at least one of the following:

The amplitude modulation capability of the first device;

The phase modulation capability of the first device.
An information processing method that includes:

a second device determines demodulation parameters for differential amplitude phase modulation;

the second device receives a first signal from the first device;

The second device demodulates the first signal according to the demodulation parameter to obtain first information.
The method according to claim 10, wherein determining the demodulation parameters of differential amplitude phase modulation includes:

The second device determines the demodulation parameter according to at least one of the following:

Second configuration information received from a third device, the second configuration information being used to configure the modulation parameters or demodulation parameters of the differential amplitude phase modulation;

second information received from the first device, the second information being used to indicate the modulation parameters or demodulation parameters of the differential amplitude phase modulation;

The capabilities of the first device and/or the second device;

Channel status information;

Default configuration information and/or factory setting information of the first device;

Default configuration information and/or factory setting information of the second device.
The method according to claim 11, wherein the second configuration information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order;

and / or,

The second information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.
The method of claim 12, wherein the modulation order includes at least one of the following:

The modulation order of the differential amplitude modulation in the differential amplitude phase modulation;

The modulation order of the differential phase modulation in the differential amplitude phase modulation;

The modulation order of the differential amplitude phase modulation.
The method according to claim 11, wherein the capabilities of the first device and/or the second device include at least one of the following:

The amplitude modulation capability of the first device and/or the second device;

Phase modulation capabilities of the first device and/or the second device.
The method according to claim 11, wherein the second information is received by the second device through at least one of the following:

Layer 1 signaling, MAC CE, RRC signaling.
The method of claim 10, wherein the method further includes:

The second device sends the capability of the second device to the first device and/or a third device;

Wherein, the capabilities of the second device include at least one of the following:

The amplitude modulation capability of the second device;

The phase modulation capability of the second device.
An information processing method that includes:

The third device sends the first configuration information to the first device, and/or sends the second configuration information to the second device;

Wherein, the first configuration information is used to configure modulation parameters of differential amplitude phase modulation, and the second configuration information is used to configure modulation parameters or demodulation parameters of differential amplitude phase modulation.
The method according to claim 17, wherein the first configuration information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order;

and / or,

The second configuration information includes at least one of the following:

Amplitude division factor;

initial amplitude value;

initial phase value;

Modulation order.
The method of claim 18, wherein the modulation order includes at least one of the following:

The modulation order of the differential amplitude modulation in the differential amplitude phase modulation;

The modulation order of the differential phase modulation in the differential amplitude phase modulation;

The modulation order of the differential amplitude phase modulation.
The method of claim 17, further comprising:

The third device determines the modulation parameter or demodulation parameter of the differential amplitude phase modulation according to at least one of the following:

The capabilities of the first device and/or the capabilities of the second device;

Channel status information;

Default configuration information and/or factory setting information of the first device;

Default configuration information and/or factory setting information of the second device.
The method of claim 20, wherein the capabilities of the first device include at least one of the following:

The amplitude modulation capability of the first device;

The phase modulation capability of the first device;

The capabilities of the second device include at least one of the following:

The amplitude modulation capability of the second device;

The phase modulation capability of the second device.
The method according to claim 17, wherein sending the first configuration information to the first device includes:

The third device sends the first configuration information to the first device through at least one of the following: layer 1 signaling, MAC CE, and RRC signaling;

and / or,

The sending the second configuration information to the second device includes:

The third device sends the second configuration information to the second device through at least one of the following: layer 1 signaling, MAC CE, and RRC signaling.
An information processing device, including:

The first determination module is used to determine the modulation parameters of differential amplitude phase modulation;

A modulation module, configured to perform differential amplitude phase modulation on the first information according to the modulation parameter to obtain the first signal;

The first sending module is used to send the first signal to the second device.
An information processing device, including:

a second determination module, used to determine the demodulation parameters of differential amplitude phase modulation;

a receiving module, configured to receive the first signal from the first device;

A demodulation module, configured to demodulate the first signal according to the demodulation parameters to obtain first information.
An information processing device, including:

A third sending module, configured to send first configuration information to the first device and/or send second configuration information to the second device;

Wherein, the first configuration information is used to configure modulation parameters of differential amplitude phase modulation, and the second configuration information Used to configure the modulation parameters or demodulation parameters of differential amplitude phase modulation.
A communication device, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the implementation of any one of claims 1 to 9 is achieved. The steps of the information processing method, or the steps of the information processing method as described in any one of claims 10 to 16, or the steps of the information processing method as described in any one of claims 17 to 22.