CN117768276A

CN117768276A - Modulation method, modulation device and communication equipment

Info

Publication number: CN117768276A
Application number: CN202211133192.4A
Authority: CN
Inventors: 黄伟; 谭俊杰
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2024-03-26
Also published as: WO2024055953A1

Abstract

The application discloses a modulation method, a modulation device and communication equipment, which belong to the technical field of communication, and the modulation method in the embodiment of the application comprises the following steps: the first device modulates bit information to obtain a first symbol, wherein a first part of bit information in the bit information is mapped to the symbol, and a second part of bit information in the bit information is mapped to the position or interval of the symbol.

Description

Modulation method, modulation device and communication equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a modulation method, a modulation device and communication equipment.

Background

How to improve the frequency band utilization of a communication system has been an important focus in the communication field, and high-order modulation is one of effective ways to improve the frequency spectrum efficiency. The distinction in modulation dimension can be divided into single-dimensional modulation and two-dimensional modulation, with typical single-dimensional modulation including: binary amplitude keying (Amplitude Shift Keying, ASK), frequency Shift Keying (FSK), phase-shift keying (PSK) modulation, etc.; the two-dimensional modulation includes quadrature amplitude modulation (QAM, quadrature Amplitude Modulation), amplitude phase shift keying (Amplitude Phase Shift Keying, APSK), and the like. Both single-dimensional modulation and two-dimensional modulation can improve the frequency band utilization rate based on high-order modulation, but there is a problem that the euclidean distance of constellation points in euclidean space decreases with the increase of modulation order, so that the probability of generating decision errors increases. Since in order to guarantee the Bit Error Ratio (BER) performance of the high-order modulation, the system is required to operate in a high signal-to-noise Ratio (Signal to Noise Ratio, SNR) scenario, and the demodulation end needs to determine the reference constellation point according to the pilot signal sent by the sending end, otherwise, poor demodulation performance will occur, which requires that the sending end sends the pilot reference signal capable of carrying all constellation points. Therefore, the traditional mode of improving the spectrum efficiency based on high-order modulation has higher requirements on system overhead, power consumption and implementation complexity. In addition, conventional modulation has little focus on transmission reliability, resulting in systems that are sensitive to noise, channel attenuation, and interference.

Therefore, how to obtain higher frequency band utilization rate or reliability based on modulation while reducing the requirement of system SNR and simplifying the implementation complexity of the transmitting and receiving end is needed to be solved.

Disclosure of Invention

The embodiment of the application provides a modulation method, a modulation device and communication equipment, which can solve the problem of how to obtain higher frequency band utilization rate or reliability based on modulation, reduce the requirement of system SNR and simplify the realization complexity of a receiving and transmitting end.

In a first aspect, there is provided a modulation method comprising:

the first device modulates bit information to obtain a first symbol, wherein a first part of bit information in the bit information is mapped to the symbol, and a second part of bit information in the bit information is mapped to the position or interval of the symbol.

In a second aspect, there is provided a modulation method comprising:

the second equipment obtains a first symbol, wherein the first symbol is a modulation symbol containing first part of bit information and second part of bit information;

and the second device demodulates the first symbol to obtain the first part of bit information and/or the second part of bit information.

In a third aspect, a modulation method is provided, the method comprising:

the method comprises the steps that a third device receives capability information of a first device and/or a second device, wherein the first device is a modulation end of a first symbol, the second device is a demodulation end of the first symbol, and the first symbol is a modulation symbol containing first part of bit information and second part of bit information;

the third device performs a first operation;

wherein the first operation includes at least one of:

determining first configuration information according to the first information, and sending the first configuration information to the first equipment; or determining first configuration information and second configuration information according to the first information, and sending the first configuration information to the first equipment and the second configuration information to the second equipment;

wherein the first information includes at least one of: capability information of the first device, capability information of the second device, channel state conditions.

In a fourth aspect, there is provided a modulation apparatus comprising:

and the first modulation unit is used for modulating the bit information to obtain a first symbol, wherein a first part of bit information in the bit information is mapped into the symbol, and a second part of bit information in the bit information is mapped into the position or interval of the symbol.

In a fifth aspect, there is provided a modulation apparatus comprising:

a first obtaining unit, configured to obtain a first symbol, where the first symbol is a modulation symbol that includes first part of bit information and second part of bit information;

and the first demodulation unit is used for demodulating the first symbol to obtain the first part of bit information and/or the second part of bit information.

In a sixth aspect, there is provided a modulation apparatus comprising:

the first receiving unit is used for receiving capability information of first equipment and/or second equipment, wherein the first equipment is a modulation end of a first symbol, the second equipment is a demodulation end of the first symbol, and the first symbol is a modulation symbol containing first part of bit information and second part of bit information;

a first execution unit configured to execute a first operation;

wherein the first operation comprises:

determining first configuration information according to the first information, and sending the first configuration information to the first equipment;

or determining first configuration information and second configuration information according to the first information, and sending the first configuration information to the first equipment and the second configuration information to the second equipment;

In a seventh aspect, a communication device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, the program or instructions implementing the steps of the modulation method according to the first aspect, or the steps of the modulation method according to the second aspect, or the steps of the modulation method according to the third aspect when executed by the processor.

In an eighth aspect, there is provided a communication system comprising: a communication device operable to perform the steps of the modulation method as described in the first aspect, or to implement the steps of the modulation method as described in the second aspect, or to implement the steps of the modulation method as described in the third aspect.

A ninth aspect provides a readable storage medium having stored thereon a program or instructions which when executed by a processor, implement the steps of the modulation method as described in the first aspect, or implement the steps of the modulation method as described in the second aspect, or implement the steps of the modulation method as described in the third aspect.

In a tenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being adapted to run a program or instructions to implement the steps of the modulation method according to the first aspect, or to implement the steps of the modulation method according to the second aspect, or to implement the steps of the modulation method according to the third aspect.

In an eleventh aspect, a computer program/program product is provided, stored in a storage medium, which is executed by at least one processor to implement the steps of the modulation method according to the first aspect, or to implement the steps of the modulation method according to the second aspect, or to implement the steps of the modulation method according to the third aspect.

In the embodiment of the application, the first part of bit information in the bit information is mapped into the symbol, and the second part of bit information in the bit information is modulated to the position or the interval of the symbol, so that the frequency band utilization rate can be effectively improved, and the implementation is simple.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

FIG. 2 is a diagram of a 2-order PAM modulation in the related art;

FIG. 3 is a diagram of a 4-order PAM modulation in the related art;

FIG. 4 is a schematic diagram of 8-PPM modulation in the related art;

FIG. 5 is a schematic diagram of 2-pulse 8-PPM modulation in the related art;

FIG. 6 is a diagram of a related art 4-order PAM- (8, 2) -MPPM modulation;

FIG. 7 is a schematic diagram of DPPM modulation in accordance with the related art;

FIG. 8 is a diagram of DPIM modulation under unprotected time slots in the related art;

FIG. 9 is a diagram of DPIM modulation with guard slots in the related art;

fig. 10 is a schematic flow chart of a modulation method according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a 16-DAPM formed by 2DASK+8PPM joint modulation provided in an embodiment of the present application;

FIG. 12 is a schematic diagram of an 8-DAPM formed by joint modulation of 2DASK+4DPIM (protected slot) according to an embodiment of the present application;

fig. 13 is a schematic diagram of a 32DAPM formed by 2dask+16dhpim joint modulation provided in an embodiment of the present application;

FIG. 14 is a second flow chart of the modulation method according to the embodiment of the present application;

fig. 15 is a schematic diagram of a single demodulation end demodulation scenario provided in an embodiment of the present application;

fig. 16 is a schematic diagram of a multi-demodulation-end demodulation scenario provided in an embodiment of the present application;

fig. 17 is a schematic diagram of a multi-demodulation-end assisted joint demodulation scenario provided in an embodiment of the present application;

FIG. 18 is a third flow chart of the modulation method according to the embodiment of the present application;

fig. 19 is a schematic structural diagram of a modulation device according to an embodiment of the present application;

FIG. 20 is a second schematic diagram of a modulating device according to an embodiment of the present disclosure;

FIG. 21 is a third schematic diagram of a modulating device according to an embodiment of the present disclosure;

fig. 22 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 23 is a schematic hardware structure of a terminal implementing an embodiment of the present application;

fig. 24 is a schematic hardware structure of a network side device for implementing an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 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 device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

The related art to which the present invention relates will be first described.

1. Single-dimensional modulation and two-dimensional modulation

The modulation can be classified into one-dimensional modulation and two-dimensional modulation according to the modulation dimension. The information modulation is performed only in one of the dimensions of amplitude, phase, frequency, etc. of the electromagnetic wave, and typical single-dimensional modulation is as follows: ASK modulation, PSK modulation, FSK modulation, etc. Whereas two-dimensional modulation, i.e. joint modulation in two of the dimensions of amplitude, phase, frequency, etc. of electromagnetic waves, typical two-dimensional modulation is: QAM modulation, carrierless amplitude-Phase modulation (Carrierless Amplitude-Phase, CAP) modulation, APSK modulation, and the like.

2. Pulse-like position modulation

Besides the traditional single-dimensional modulation and two-dimensional modulation which are modulated based on the dimensions of amplitude, phase, frequency and the like of electromagnetic waves, pulse modulation is a relatively wide modulation mode applied to communication systems such as wireless optical communication, laser communication and the like. Pulse-like position modulation refers to pulse position modulation (Pulse Position Modulation, PPM), differential pulse position modulation (Differential Pulse Position Modulation, DPPM), digital pulse interval modulation (Digital Pulse Interval Modulation, DPIM) and various combinations thereof, and various pulse position modulation schemes evolved therefrom. In general, the pulse position modulation can obtain higher power efficiency, and the modulation mode is simple and the hardware circuit is convenient to realize. But has disadvantages in that the anti-channel interference performance is poor and the frequency band utilization is low. Several more typical pulse-like position modulations are described below as examples.

Pulse amplitude modulation (Pulse Amplitude Modulation, PAM)

PAM is a modulation scheme in which the amplitude of a pulse carrier varies with the baseband signal. The modulation mode system is simple to realize and can realize demodulation based on a non-coherent demodulator. As shown in fig. 2, a schematic diagram of 2-order PAM modulation is shown, where "1" is represented by a high level and "0" is represented by a low level, and the modulation mode may also be called On-off Keying (OOK) or binary amplitude Keying (Amplitude Shift Keying, ASK). Fig. 3 shows a schematic diagram of a 4-order PAM modulation, in which information bits are carried by 4-order amplitude pulse signals, each of which can carry two information bits.

(two) pulse position modulation

PPM is a modulation mode with simple coding and high power efficiency. PPM modulation is used to modulate the relative position (i.e., phase) of a pulse in a sequence of signal pulses such that the relative position of the pulse varies with the baseband signal, but the amplitude and width of each pulse in the sequence is unchanged. As shown in fig. 4, which is a schematic diagram of 8-PPM modulation, each frame is divided into 8 slots, pulse signals are transmitted on only one slot in one frame at a time, and the amplitudes of the pulses are the same, and information bits are carried by changing the relative positions of the pulses on the slots in the frame, so that modulation is achieved. In the first frame, a pulse is sent on the 5 th slot, then the pulse may carry the bit "100"; in the second frame, a pulse is sent on slot 2, which may carry bit "001".

(III) Multi-pulse position modulation (Multiple Pulse Position Modulation, MPPM)

The MPPM is one of the optimal modulation schemes of the conventional PPM modulation, and has a higher frequency band utilization rate. Unlike PPM modulation, which only transmits one pulse over one time slot of each frame, MPPM modulation modulates the relative position (i.e., phase) of multiple pulses in a signal pulse train, such that the relative position of the multiple pulses varies with the baseband signal, but the amplitude and width of each pulse in the train are unchanged. FIG. 5 is a schematic diagram of 2-pulse 8-PPM modulation for simplicityAnd is designated as (8, 2) -MPPM. Each frame is divided into 8 time slots, different pulse signals are sent on two time slots in the same frame each time, and the relative position arrangement combination of the two pulses on the time slots in the frame is changed to realize modulation. The number of relative position arrangement combinations between 2 pulses on 8 time slots in each frame isThus log can be carried in one frame ₂ 28 =4.8 bits, whereas conventional 8-PPM transmits 3 bits within one frame. Thus, the MPPM can achieve data transmission with higher band utilization.

(IV) Multi-pulse position-amplitude modulation (Multiple Pulse Amplitude Position Modulation, MPAPM)

MPAPM is one of the improvement modes of MPPM modulation, and information modulation is realized by modulating the amplitude of each pulse on the basis of MPPM, so that the frequency band utilization rate of the system is further improved. As shown in fig. 6, which is a schematic diagram of 4-order PAM- (8, 2) -MPPM modulation, the amplitude of the pulse in the slot is one of four amplitudes, so that the two pulses can be added with 4 bits on the MPPM, and thus 8.8 bits can be carried in one frame.

(V) differential pulse position modulation

The PPM occupies a large bandwidth in the information transmission process, so that waste is caused to a certain extent. DPPM modulation is a modified PPM modulation scheme, shown in fig. 7, which retains the low level before a single pulse, and the low level after the single pulse is removed. Therefore, compared with PPM, the DPPM modulation mode has higher duty ratio under the premise of the same time slot number; in the same information transmission process, the bandwidth occupied by DPPM modulation is reduced compared with PPM, and the data transmission efficiency is improved.

In pulse position modulation PPM, there are many variations of the above, besides the MPPM, MPAPM, DPPM modulation, including: overlapping pulse position modulation (Overlapping Pulse Positioning Modulation, OPPM), double wide pulse position modulation (Dual Duration Pulse Positioning Modulation, DDPPM), double amplitude pulse position modulation (Dual Amplitude Pulse Positioning Modulation, DAPPM), shortened pulse position modulation (Shorten Pulse Positioning Modulation, SPPM), split double pulse position modulation (Separated Double Pulse Positioning Modulation, SDPPM), and the like.

(six) digital pulse Interval modulation

The pulse modulation discussed above is based on pulse position, however loading information by replacing the absolute position of the pulse with the number of empty slots between two adjacent pulses is an alternative. The number of slots contained in the DPIM frame symbol is not fixed, the DPIM symbol is represented by a start slot pulse and a plurality of empty slots nearby the start slot pulse, and the number of the empty slots is determined according to decimal data corresponding to the binary information source. In L-DPIM, log of symbols per frame ₂ The 2L bits are mapped into L possible symbol structures, and the symbol lengths are different, and the minimum and maximum symbol lengths are T respectively _s And L.T _s Wherein T is _s A single slot size. To minimize the effects of intersymbol interference during data transmission, a guard slot is added after each DPIM symbol such that the minimum and maximum symbol lengths are 2T, respectively _s And (L+1). T _s . Fig. 8 and 9 show a modulation scheme of 4DPIM, wherein fig. 8 is a diagram of DPIM modulation in unprotected time slots and fig. 9 is a diagram of DPIM modulation in protected time slots.

In addition to single pulse DPIM modulation, there are many variations of DPIM modulation such as Double-ended pulse-interval modulation (Double-headed Pulse Interval Modulation, DH-PIM), double-pulse-interval modulation (Dual Pulse Pulse Interval Modulation, DPPIM), double-amplitude pulse-interval modulation (Dual-amplitude Pulse Interval Modulation, DAPIM), fixed-length digital pulse-interval modulation (FDPIM), fixed-length Double-amplitude pulse-interval modulation (FDAPIM), and the like.

Both single-dimensional modulation and two-dimensional modulation can improve the frequency band utilization rate based on high-order modulation, but there is a problem that the euclidean distance of constellation points in euclidean space decreases with the increase of modulation order, so that the probability of generating decision errors increases. Since the system is required to operate in a high SNR scenario in order to guarantee BER performance of high order modulation, and the demodulation end needs to determine the reference constellation point according to the pilot signal sent by the transmission end, otherwise, demodulation performance is poor, which requires the transmission end to send the pilot reference signal capable of carrying all constellation points. Therefore, the traditional mode of improving the spectrum efficiency based on high-order modulation has higher requirements on system overhead, power consumption and implementation complexity. Pulse-like modulation, including pulse position modulation and pulse interval modulation, has the disadvantage of low frequency band utilization. In addition, conventional modulation has little focus on transmission reliability, resulting in systems that are sensitive to noise, channel attenuation, and interference.

Therefore, how to obtain higher frequency band utilization rate or reliability based on modulation, and simultaneously reduce the requirement of system SNR, and simplify the implementation complexity of a receiving and transmitting end is a technical problem to be solved in the application.

The modulation method, the modulation device and the communication equipment provided by the embodiment of the application are described in detail below by means of some embodiments and application scenes thereof with reference to the accompanying drawings.

Fig. 10 is a schematic flow chart of a modulation method according to an embodiment of the present application. As shown in fig. 10, the modulation method includes the steps of:

step 1000, the first device modulates the bit information to obtain a first symbol, wherein a first part of bit information in the bit information is mapped to the symbol, and a second part of bit information in the bit information is mapped to a position or interval of the symbol.

It may be understood that the first device is a modulation end, and may be a terminal device or a network side device.

Optionally, the second part of bit information is other bit information than the first part of bit information in the bit information, that is, the first part of bit information and the second part of bit information form the bit information.

For example, the bit information is m+n bit information, the first part of bit information is m bit information, the second part of bit information is n bit information, the first device maps the m bit information to a symbol, and modulates the n bit information to a position of the symbol mapped by the first part of bit information or to a space dimension of the symbol.

The first symbol may be referred to as a hybrid modulation symbol.

In the embodiment of the application, the first part of bit information in the bit information is mapped into the symbol, and the second part of bit information in the bit information is modulated to the position of the symbol or the interval dimension of the symbol, so that the frequency band utilization rate can be effectively improved, and the implementation is simple.

Optionally, the means for modulating the first portion of bit information into symbols comprises one of: modulating multiple carriers; single carrier modulation; single-dimensional modulation; two-dimensional modulation; absolute modulation; relative modulation; and (5) differential modulation.

Optionally, the position of the symbol is the position or the permutation combination of the positions of the symbol in the first time unit; the symbol interval is the number of second time units between two symbols.

The position of a symbol can be understood as the position of the symbol in the P (1. Ltoreq.p) th second time unit within the first time unit.

The permutation and combination of the positions of the symbols can be understood as that there are k (2. Ltoreq.k. Ltoreq.P) symbols in the first time unit, and the relative positions of the k symbols are permutation and combination.

Optionally, the first time unit is an integer multiple of the second time unit. Namely P (P is more than or equal to 2) second time units form a first time unit. For example, the first time unit is 8 time slots in length, the second time unit is 1 time slot in length, and the first time unit is 8 times the second time unit in length.

Optionally, the multiple of the length of the first time unit relative to the length of the second time unit is fixed or non-fixed.

The length of the first time unit may or may not be a fixed multiple of the length of the second time unit, optionally the length of the first time unit is fixed or non-fixed with respect to the length of the second time unit, depending on the modulation scheme employed by the first device.

In the embodiment of the present application, the multiple of the length of the first time unit relative to the length of the second time unit is fixed or non-fixed, so that the flexibility and efficiency of transmission can be improved.

Optionally, in the case that a guard slot exists between two symbols, the number of second time units between the two symbols is greater than or equal to 1.

It can be appreciated that in the case where a guard slot exists between two symbols, the interval between the two symbols, i.e., the number of second time units is 1 or more.

The interval between symbols, i.e. the number Q of the second time units between two symbols, if no guard time slot exists, Q is more than or equal to 0; if a protection time slot exists, Q is more than or equal to 1.

Optionally, the length of the first symbol is the length of the first time unit.

Since the first part of bit information is mapped to symbols and the second part of bit information is mapped to positions of symbols or intervals of symbols, the length of the first symbol is equal to the length of the first time unit.

Optionally, the first part of bit information and the second part of bit information are different bit information; alternatively, the first partial bit information and the second partial bit information are the same bit information.

In some optional embodiments, the first part of bit information and the second part of bit information are different bit information, which indicates that the modulation mode of the bit information is a multiplexing mode, and the first symbol carries two parts of different bit information, so that a higher frequency band utilization rate can be obtained.

The modulation method based on the multiplexing mode provided in the present application is described in the following by several specific embodiments.

In this embodiment, differential amplitude keying (Differential Amplitude Shift Keying, DASK) modulation is performed by taking the first part as bit information, symbol interval or position is performed by the second part of bit information, and the modulation mode is a multiplexing mode, that is, the first part of bit information and the second part of bit information are different bit information, which is taken as an example to explain the scheme of the present application. In this embodiment, since the modulation symbols of the first portion are mapped pulses, symbol positions or intervals are denoted by pulse positions or intervals below, and both have the same meaning in this embodiment.

In one implementation, the number of slots representing pulse symbols is fixed, and each pulse symbol has only a single pulse in a slot, and pulse modulation of this type is mainly PPM modulation. Taking the example of 16-DAPM (differential position-amplitude modulation (Differential Amplitude Position Modulation, DAPM)) formed by 2dask+8ppm joint modulation as an example, fig. 11 is a schematic diagram of 16-DAPM formed by 2dask+8ppm joint modulation provided in the embodiments of the present application. Each pulse has 8 possible slot positions within one symbol period, and each pulse has two possible amplitudes 1 and a, so each pulse can carry 4 bits of information. For example, taking the first symbol period as an example, there is a pulse with an amplitude of 1 at the 5 th slot position in the symbol period, and the amplitude value of the last pulse in the symbol period is 1, thus representing bit information "0100", where the first bit "0" represents that the amplitude value in 2DASK is 1, and the corresponding differential amplitude coefficient is 1; the remaining three bits of information being "100" means that the pulse is the fifth slot position in the symbol period. It should be noted that, taking the first symbol period as an example, that is, there is a pulse with an amplitude of 1 at the 5 th slot position in the symbol period, if the amplitude value of the last pulse in the symbol period is α, the bit information "1100" is thus represented, where the first bit "1" indicates that the amplitude value in the 2DASK is 1, and the corresponding differential amplitude coefficient is 1/α; the remaining three bits of information being "100" means that the pulse is the fifth slot position in the symbol period.

In another implementation, the number of slots characterizing the pulse symbol period is not fixed, and there is only a single pulse in each pulse symbol slot, and this type of pulse modulation is mainly DPPM modulation, DPIM, and their variants DDPPM. Formed by joint modulation of 2DASK+4DPIM (protected time slot)For example, fig. 12 is a schematic diagram of an 8-DAPM formed by combining 2dask+4dpim (protected slot) modulation according to an embodiment of the present application. The number of slots of each pulse symbol period is not fixed, the DPIM symbol is represented by a starting slot pulse and a plurality of empty slots of the following accessories, the number of the empty slots is judged according to decimal data corresponding to a binary information source, and in addition, in order to reduce the influence of intersymbol interference in the data transmission process as much as possible, a protection slot is added behind each DPIM symbol, so that the minimum and maximum symbol lengths are respectively 2T _s And 5T _s The method comprises the steps of carrying out a first treatment on the surface of the In addition, each pulse has two possible amplitudes 1 and α, so each pulse symbol period can carry 3 bits of information. Taking the second symbol period in the figure as an example, the last two bits "01" in the bit information "101" in the symbol period indicate that there are three slots in the symbol period, one of the three slots is a guard slot, the first slot is a pulse, and the second slot is no pulse; the first bit "1" in the "101" bit information indicates that the amplitude value is α (the last symbol period is 1). The specific modulation process may refer to the previous scheme, and will not be described here again.

In another implementation, the number of slots representing the pulse symbol period is not fixed, and there are only multiple (greater than or equal to 2) pulses in each pulse symbol slot, and this kind of pulse modulation is mainly Double-ended pulse interval modulation (DHPIM) or the like. Wherein each symbol in the DHPIM modulation consists of a header slot and a subsequent null slot. The fixed length of the head time slot is (beta+1) time slots (beta is a positive integer), and the two cases are divided: beta/2 slots and (beta/2+1) slots; beta slots and 1 slot. l is a decimal number corresponding to decimal data, when l is<2 ^L-1 The head time slot is formed as the former case, and the number of the subsequent empty time slots is l; when l is greater than or equal to 2 ^L-1 When the header time slot combination is the latter case, the number of the subsequent empty time slots is (2 ^L-1 -1-l). Fig. 13 is a schematic diagram of a 32DAPM formed by 2dask+16dhpim joint modulation provided in an embodiment of the present application. For specific modulation and demodulation procedures of 2DASK and 16DHPIM, reference may be made to the foregoing procedure, and details are not repeated here.

In the above-described embodiments, modulation of the first part of bit information is realized based on DASK modulation, and modulation of the second part of bit information is realized based on pulse position or pulse interval modulation with or without fixed time slots, so that high-band utilization can be obtained. It is readily appreciated that the above embodiment scheme is readily extended to first portion based on QAM, APSK, ASK, PSK, FSK, orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiple, OFDM), orthogonal time-frequency space (Orthogonal Time Frequency Space, OTFS), differential phase shift keying (Differential phase-shift keying, DPSK), and other modulations, in addition to DASK. Hybrid modulation in multiplexing mode is suitable for high rate transmission scenarios or high SNR communication scenarios.

In the embodiment of the present application, the first part of bit information and the second part of bit information are different bit information, and by mapping the first part of bit information into symbols and mapping the second part of bit information into positions or intervals of the symbols, the frequency band utilization rate can be improved.

The first part of bit information and the second part of bit information are the same bit information, and the modulation mode of the bit information is a diversity mode, namely the first symbol carries the two parts of bit information which are the same, redundancy is provided, diversity gain can be obtained, and transmission reliability is improved.

The modulation mode is diversity mode, i.e. it is required that the m bits of information of the first part are identical to the n bits of the second part, i.e. { c } ₀ ,c ₁ ,…,c _m }＝{c ₀ ,c ₁ ,…,c _n And m=n. When modulating, the m-bit information can be mapped to the modulation symbols respectively, and the same n-bit information can be mapped to the position or interval dimension of the modulated symbols at the same time, so as to realize the hybrid modulation in the diversity mode. The receiving end demodulates the position of the symbol or the interval dimension of the symbol and the dimension forming the modulation symbol according to the indication, performs weighted combination or other processing (decision or selection combination, maximum ratio combination and the like) on the obtained m-bit information of the two parts, and finally obtains demodulated m-bit information.

Although the frequency band utilization rate of the system can not be improved by the hybrid modulation in the diversity mode, the transmission reliability of the system can be improved, so that the system obtains diversity gain, and the hybrid modulation method is suitable for communication scenes with high or low transmission reliability requirements.

In the embodiment of the present application, the first part of bit information and the second part of bit information are the same bit information, and by mapping the first part of bit information into symbols and mapping the second part of bit information into positions or intervals of the symbols, transmission reliability of the system can be improved, so that the system obtains diversity gain.

Optionally, the modulating the bit information includes:

and modulating the bit information according to first configuration information, wherein the first configuration information is used for indicating the modulated parameters.

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

a mixed modulation type;

mixing modulation orders;

the length of the time cell;

modulation mode.

Optionally, the hybrid modulation type includes at least one of:

modulation type or bit mapping rule of the first part of bit information;

the modulation type or bit mapping rule of the second part of bit information.

Optionally, the modulation type includes at least one of: modulating multiple carriers; single carrier modulation; single-dimensional modulation; two-dimensional modulation; absolute modulation; relative modulation; and (5) differential modulation.

Optionally, the hybrid modulation order includes one of:

modulation orders of the first part of bit information and modulation orders of the second part of bit information;

for example, the modulation order M of the M-bit stream information of the first part, and the modulation order N of the N-bit stream information of the second part.

The modulation order of the first part of bit information and the mixed modulation order of the bit information;

for example, the modulation order M of the M-bit stream information of the first portion, the mixed modulation order (mxn) of the m+n-bit stream information.

Modulation orders of the second part of bit information, and hybrid modulation orders of the bit information.

For example, the modulation order N, m+n of the N-bit stream information of the second portion is the mixed modulation order (mxn) of the N-bit stream information.

Optionally, the length of the time unit includes one of:

the length of the first time unit and the length of the second time unit;

the length of the first time unit, and a multiple between the length of the first time unit and the length of the second time unit;

the length of the second time unit, and a multiple between the length of the first time unit and the length of the second time unit.

Optionally, the modulation mode includes: multiplexing mode or diversity mode.

The multiplexing mode is that the first part of bit information and the second part of bit information are different bit information;

the diversity mode is that the first part of bit information and the second part of bit information are the same bit information.

The first configuration information may indicate a modulation mode through modulation mode indication information. For example, bit "1" indicates a multiplexing mode; the bit "0" indicates a diversity mode.

Optionally, the method further comprises:

transmitting first indication information to second equipment, wherein the first indication information is used for indicating parameters of modulation or demodulation;

wherein the second device is a demodulation end of the first symbol.

Optionally, the second device includes one or more demodulation ends.

According to the embodiment of the application, the first part of bit information and the second part of bit information which are simultaneously transmitted by the unified signal by different receiving equipment or demodulation ends and the transmitting end are realized, the different requirements of different receiving equipment/demodulation ends on the aspects of speed, complexity, power consumption and the like can be met by providing flexible bit mapping and transmission modes, and the flexibility and the efficiency of transmission are improved.

Optionally, the first indication information includes at least one of:

a mixed modulation type;

mixing modulation orders;

the length of the time cell;

modulation mode.

It should be noted that, the first indication information is all or part of parameters of the first configuration information, and for understanding the first indication information, reference may be made to the first configuration information, which is not described herein. Since the first indication information is a parameter for demodulation by one or more demodulation terminals, only the demodulation parameter related to the demodulation terminal needs to be obtained for the demodulation terminal.

In the embodiment of the application, the first indication information is sent to the second device so that the second device can obtain the demodulation parameters, and the demodulation efficiency of the demodulation end can be improved by demodulating the obtained symbols according to the demodulation parameters.

Optionally, the method further comprises:

the first device determines the first configuration information according to the first information;

or, receiving first configuration information sent by the third device, where the first configuration information is determined by the third device according to the first information;

wherein the first information includes at least one of: capability information of the first device, capability information of the second device, channel state condition;

Wherein the second device is a demodulation end of the first symbol.

It will be appreciated that the first configuration information mentioned in the above embodiments may be determined by the first device, in particular based on the first information. The first information includes at least one of: capability information of the first device, capability information of the second device, channel state conditions.

The second device is a demodulation end of the first signal, and may be a terminal device or a network side device.

Alternatively, the first configuration information may be determined by the third device, specifically, the third device determines the first configuration information according to the first information, and sends the first configuration information to the first device.

Optionally, the first device reports capability information of the first device to the third device. For example, after entering the connection state, the first device reports its own UE capability information through UE Capability Enquiry-UE Capability Information signaling, or reports its own UE capability information through UE Assistance Information information. Or, in the initial registration or addition process, the own UE capability information is actively reported through Initial UE message.

The third device may be a modulation side, a demodulation side, or a third party communication device.

Optionally, the capability information of the first device or the second device includes at least one of:

amplitude modulation capability, i.e., the number of states of the supported adjustable amplitude information, continuous or discrete amplitude modulation and corresponding continuous or discrete features;

pulse adjusting capability, including adjusting the time slot position, time slot interval, etc. of the pulse;

demodulation capabilities, such as supporting coherent demodulation or noncoherent demodulation capabilities; .

Antenna capability, and respective antenna capabilities of the transmitting end and the receiving end.

Optionally, the channel state condition includes historical channel state information, or real-time channel state information.

The historical channel state information may be channel state information that was recorded while the device was resident. The real-time channel state information may be estimated or otherwise obtained information state information.

In some alternative embodiments, the first configuration information may be configured by default or factory set.

Optionally, the first configuration information is carried by one of:

radio resource control (Radio Resource Control, RRC) signaling;

a medium access control unit (MAC Control Element, MAC CE);

physical layer signaling.

Among other things, physical layer signaling includes, but is not limited to: downlink control information (Downlink Control Information, DCI), side link control information (Sidelink Control Information, SCI), physical frame header preamble, etc.

In the embodiment of the invention, a part of bit information is modulated by the symbol, and the other part of bit information is modulated to the position and the interval dimension between modulated symbols, and the communication system can flexibly realize the mixed multidimensional modulation and demodulation by designing the modulation and demodulation method, the signaling flow, the configuration parameters and the like of the mixed modulation. Under the condition, the system can obtain higher frequency band utilization rate and simultaneously reduce the requirement of the SNR of the system, and simultaneously simplify the implementation complexity of a receiving and transmitting end; in another case, the transmission reliability of the system or diversity transmission gain can be improved.

Fig. 14 is a second flowchart of a modulation method according to an embodiment of the present application. As shown in fig. 14, the method includes the steps of:

step 1400, the second device obtains a first symbol, where the first symbol is a modulation symbol including a first part of bit information and a second part of bit information;

it can be understood that the second device is a demodulation end, and may be a terminal device or a network side device.

The second device obtains a first symbol, where the first symbol is a symbol obtained by modulating the first part of bit information and the second part of bit information by the modulation end, and may be referred to as a hybrid modulation symbol. Specifically, the modulation end modulates the first part of bit information into symbols, and modulates the second part of bit information into positions or intervals of the symbols, so that the first symbols are formed.

In step 1401, the second device demodulates the first symbol to obtain the first part of bit information and/or the second part of bit information.

The second device demodulates the first symbol to obtain the first part of bit information and/or the second part of bit information.

The second device demodulates the first symbol, and the obtained bit information is related to the demodulation capability of the second device.

In one embodiment, the second device demodulates only the m-bit information of the first part thereof, and demodulates the first part of bit information according to a symbol demodulation rule mapped to the m-bit information of the first part

In one embodiment, the second device demodulates only the n-bit information of the second portion thereof, (I) demodulates the second portion of bit information according to a symbol demodulation rule into which the n-bit information of the second portion is mapped

In one embodiment, the second device demodulates all (i.e., m+n bits) of the bit information in the first symbol. The first portion of bit information may be demodulated according to a symbol demodulation rule mapped to the m-bit information of the first portion and the second portion of bit information may be demodulated according to a symbol demodulation rule mapped to the n-bit information of the second portion.

In the embodiment of the application, the modulation symbol containing the first part of bit information and the second part of bit information is obtained, and the modulation symbol is demodulated to obtain the first part of bit information and/or the second part of bit information, so that the requirement of the system SNR can be reduced while the higher frequency band utilization rate is obtained, and meanwhile, the implementation complexity of a receiving and transmitting end is simplified.

Optionally, the demodulating the first symbol includes:

inversely mapping the symbols of the first symbol into a first part of bit information; and/or the number of the groups of groups,

the position or spacing of the symbols of the first symbol is inversely mapped to a second part of bit information.

In the embodiment of the application, the symbol of the first symbol is reversely mapped into the first part of bit information, and the position or the interval of the symbol of the first symbol is reversely mapped into the second part of bit information, so that the frequency band utilization rate can be effectively improved, and the implementation is simple.

Optionally, the length of the first time unit is an integer multiple of the length of the second time unit. Namely P (P is more than or equal to 2) second time units form a first time unit. For example, the first time unit is 8 time slots in length, the second time unit is 1 time slot in length, and the first time unit is 8 times the second time unit in length.

Optionally, in the case that a guard slot exists between two symbols, the number of second time units between the two symbols is greater than or equal to 1

Since the first part of bit information is mapped to a symbol and the second part of bit information is mapped to a position of the symbol or a space dimension of the symbol, a length of the first symbol is equal to a length of the first time unit.

The first part of bit information and the second part of bit information are different bit information, and the modulation mode of the bit information is a multiplexing mode, and the first symbol carries the two parts of different bit information, so that higher frequency band utilization rate can be obtained.

The first part of bit information and the second part of bit information are the same bit information, and the modulation mode of the bit information is a diversity mode, namely, the first symbol carries the two parts of bit information which are the same, so that redundancy is provided, diversity gain can be obtained, and transmission reliability is improved.

Optionally, the demodulating the first symbol includes:

demodulating the first symbol according to second configuration information and/or first indication information, wherein the second configuration information is used for indicating a demodulated parameter, and the first indication information is used for indicating a modulated or demodulated parameter.

The second configuration information may be determined by the second device or may be from the third device. The first indication information is from the first device.

Optionally, the second configuration information or the first indication information includes at least one of:

a mixed modulation type;

mixing modulation orders;

the length of the time cell;

modulation mode.

It should be noted that, the second configuration information and the first indication information need to include all demodulation parameters, which are divided into the following cases:

1. the second configuration information indicates all demodulation parameters;

2. The first indication information indicates all demodulation parameters;

3. the second configuration information and the first indication information together indicate all the demodulation parameters, i.e. each indicate a partial demodulation parameter.

In one embodiment, the second device demodulates the first symbol only according to the second configuration information to obtain the m-bit information of the first portion.

At this time, the second configuration information indicates all or part of demodulation parameters. Optionally, the second configuration information at least includes:

(I1) Modulation type of m-bit stream information of the first part, or bit mapping rule;

(I2) Modulation order, any one or more of which includes:

(i) The modulation order M of the M-bit bitstream information of the first portion;

(ii) The modulation order N of the N-bit stream information of the second part;

(iii) mixed modulation order (mxn) of m+n bit stream information;

(I3) A time unit length, any one or more of which comprises:

(i) The length PT of the first time unit, the length T of the second time unit;

(ii) The length PT of the first time unit, the length of the first time unit and the multiple P of the length of the second time unit;

(iii) The length T of the second time unit, the length of the first time unit and the multiple P of the length of the second time unit.

In one embodiment, the second device demodulates the first symbol only according to the second configuration information to obtain the n-bit information of the second portion.

(II 1) a modulation type, or bit mapping rule, of the n-bit stream information of the second portion;

(II 2) modulation orders, any one or more of which comprise:

(ii) The modulation order N of the N-bit stream information of the second part;

(iii) mixed modulation order (mxn) of m+n bit stream information;

(II 3) a time unit length, any one or more of which comprises:

(i) The length PT of the first time unit, the length T of the second time unit;

In one embodiment, the second device demodulates the first symbol based only on the second configuration information to obtain the m-bit information of the first portion and the n-bit information of the second portion.

At this time, the second configuration information indicates all demodulation parameters. Optionally, the second configuration information at least includes:

(III 1) a modulation type, or bit mapping rule, of the m-bit bitstream information of the first portion, and a modulation type, or bit mapping rule, of the n-bit bitstream information of the second portion;

(III 2) modulation orders, any one or more of which comprise:

(ii) The modulation order N of the N-bit stream information of the second part;

(iii) mixed modulation order (mxn) of m+n bit stream information;

(III 3) a time unit length, any one or more of which comprises:

(i) The length PT of the first time unit, the length T of the second time unit;

(III 4) modulation mode indication.

In some alternative embodiments, the second device demodulates the first symbol only according to the first indication information to obtain the m-bit information of the first portion.

In some alternative embodiments, the second device demodulates the first symbol only according to the first indication information to obtain the n-bit information of the second portion.

In some alternative embodiments, the second device demodulates the first symbol based only on the first indication information to obtain the m-bit information of the first portion and the n-bit information of the second portion.

The content included in the first indication information is the same as the second configuration information under the corresponding condition, and will not be described herein.

In some alternative embodiments, the second device demodulates the first symbol according to the second configuration information and the first indication information to obtain the m-bit information of the first portion. At this time, the demodulation parameters formed by the second configuration information and the first indication information are the same as those of the second configuration information under the corresponding conditions, and will not be described herein.

In some alternative embodiments, the second device demodulates the first symbol according to the second configuration information and the first indication information to obtain the n-bit information of the second portion. At this time, the demodulation parameters formed by the second configuration information and the first indication information are the same as those of the second configuration information under the corresponding conditions, and will not be described herein.

In some alternative embodiments, the second device demodulates the first symbol according to the second configuration information and the first indication information to obtain the m-bit information of the first portion and the n-bit information of the second portion. At this time, the second configuration information and the first indication information together indicate all demodulation parameters, which are not described herein.

In the embodiment of the application, the second device demodulates according to the second configuration information and/or the first indication information, so that the demodulation efficiency of the demodulation end can be improved.

Optionally, the hybrid modulation type includes at least one of:

modulation type or bit mapping rule of the first part of bit information;

the modulation type or bit mapping rule of the second part of bit information.

Optionally, the hybrid modulation order includes one of:

Optionally, the length of the time unit includes one of:

the length of the first time unit and the length of the second time unit;

Optionally, the modulation mode includes: multiplexing mode or diversity mode.

Hybrid modulation in multiplexing mode is suitable for high rate transmission scenarios or high SNR communication scenarios.

Optionally, the method further comprises:

the second device determines the second configuration information according to the first information;

or, receiving the second configuration information sent by the third device, where the second configuration information is determined by the third device according to the first information;

It will be appreciated that the second configuration information mentioned in the above embodiments may be determined by the second device, in particular based on the first information. The first information includes at least one of: capability information of the first device, capability information of the second device, channel state conditions.

Alternatively, the second configuration information may be determined by the third device, specifically, the third device determines the second configuration information according to the first information, and sends the second configuration information to the second device.

Optionally, the second device reports capability information of the second device to the third device. For example, after entering the connection state, the second device reports its own UE capability information through UE Capability Enquiry-UE Capability Information signaling, or reports its own UE capability information through UE Assistance Information information. Or, in the initial registration or addition process, the own UE capability information is actively reported through Initial UE message.

demodulation capabilities, such as supporting coherent demodulation or noncoherent demodulation capabilities;

In some alternative embodiments, the second configuration information may be configured by default or factory set.

Optionally, the second configuration information is carried by one of:

radio resource control, RRC, signaling;

a medium access control unit (MAC CE);

physical layer signaling.

Among other things, physical layer signaling includes, but is not limited to: DCI, SCI, physical frame header preamble, etc.

Optionally, the first indication information is carried by one of the following ways: DCI, SCI.

Optionally, the second device includes one or more demodulation ends.

(a) If the second device is a demodulation end, all or part of bit information in the first symbol can be demodulated

(b) If the second device is a plurality of demodulation terminals, each demodulation terminal can demodulate all or part of the bit information in the first symbol, depending on the demodulation capability of each demodulation terminal.

Fig. 15 is a schematic diagram of a single demodulation end demodulation scenario provided in an embodiment of the present application. As shown in fig. 15, in this scenario, the transmitting end transmits the hybrid modulation symbol, and the system configuration or transmitting end instructs the receiving end to demodulate part or all of the bit information in the hybrid modulation symbol.

Fig. 16 is a schematic diagram of a multi-demodulation-end demodulation scenario provided in the embodiment of the present application, as shown in fig. 16, in this scenario, due to capability differences of UEs distributed in a network, a part of UEs only can demodulate a first part of bit information in a hybrid modulation symbol, a part of UEs can demodulate a second part of bit information in the hybrid modulation symbol, and a part of UEs can demodulate all bit information in the hybrid modulation symbol. One of the benefits of the application scene is that the transmitting end can simultaneously provide information transmission for different users only by using a unified modulation mode, so that the scheduling and transmission delay are reduced.

Fig. 17 is a schematic diagram of a multi-demodulation-end assisted joint demodulation scenario provided in the embodiment of the present application, as shown in fig. 17, in this scenario, due to capability differences of UEs distributed in a network, part of UEs only can demodulate a first part of bit information in a hybrid modulation symbol, part of UEs can demodulate a second part of bit information in the hybrid modulation symbol, and part of UEs can demodulate all of bit information in the hybrid modulation symbol. Taking UE1 only can demodulate the first part of bit information, UE2 can demodulate all or the second part of bit information as an example, UE2 transmits the demodulated information to UE1 after completing demodulation of the second part of bit information, and UE1 combines the demodulated first part of bit information with the second part of bit information transmitted from UE2, so as to demodulate all bit information of the mixed modulation symbol transmitted by the transmitting end. And through cooperation among the UE, joint demodulation is realized. This approach is suitable for scenarios where the UE is weak but rate demanding, but requires that the UE and UE can be based on sidelink-like data and signaling.

In the embodiment of the invention, a part of bit information is modulated by the symbol, and the other part of bit information is modulated to the symbol position of the modulated symbol and the interval dimension between the symbols, and the communication system can flexibly realize the mixed multidimensional modulation and demodulation by designing the modulation and demodulation method, the signaling flow, the configuration parameters and the like of the mixed modulation. Under the condition, the system can obtain higher frequency band utilization rate and simultaneously reduce the requirement of the SNR of the system, and simultaneously simplify the implementation complexity of a receiving and transmitting end; in another case, the transmission reliability of the system or diversity transmission gain can be improved.

Fig. 18 is a third flow chart of the modulation method according to the embodiment of the present application. As shown in fig. 18, the modulation method includes:

step 1800, receiving capability information of a first device and/or a second device by a third device, wherein the first device is a modulation end of a first symbol, the second device is a demodulation end of the first symbol, and the first symbol is a modulation symbol containing first part of bit information and second part of bit information;

step 1801, the third device performs a first operation;

wherein the first operation comprises:

amplitude modulation capability;

pulse modulation capability;

Demodulation capability;

antenna capability.

Optionally, the first configuration information or the second configuration information is carried by one of the following ways:

radio resource control, RRC, signaling;

a medium access control unit (MAC CE);

physical layer signaling.

For an understanding of the behavior of the third device and the related descriptions in the steps performed by the third device, reference may be made to the related descriptions in the foregoing embodiments, which are not repeated here.

In the embodiment of the invention, the first configuration information is sent, the second configuration information is optionally sent, so that the modulation end carries out symbol modulation on one part of bit information, and the other part of bit information is modulated to the symbol position of the modulated symbol and the interval dimension between the symbols, so that the communication system can flexibly realize mixed multidimensional modulation and demodulation, the system obtains higher frequency band utilization rate and simultaneously reduces the requirement of the system SNR, and meanwhile, the realization complexity of the receiving and transmitting end is simplified; in another case, the transmission reliability or diversity transmission gain of the system can also be improved.

The modulation method provided by the embodiment of the application can be applied to an LTE system, a 5G NR system, an NR evolution system, a 6G system, a plurality of wireless communication systems such as IEEE 802.11, wireless optical communication, back scattering communication and the like.

According to the modulation method provided by the embodiment of the application, the execution body can be a modulation device. In the embodiment of the present application, a modulation method performed by a modulation device is taken as an example, and the modulation device provided in the embodiment of the present application is described.

Fig. 19 is a schematic structural diagram of a modulation device according to an embodiment of the present application. As shown in fig. 19, the modulation apparatus 1900 includes:

a first modulating unit 1910, configured to modulate bit information to obtain a first symbol, where a first part of bit information in the bit information is mapped to a symbol, and a second part of bit information in the bit information is mapped to a position or interval of the symbol.

Optionally, the length of the first time unit is an integer multiple of the length of the second time unit.

Optionally, the modulating the bit information includes:

Optionally, the apparatus further comprises:

a first transmitting unit, configured to transmit first indication information to a second device, where the first indication information is used to indicate a parameter of modulation or demodulation;

wherein the second device is a demodulation end of the first symbol.

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

a mixed modulation type;

Mixing modulation orders;

the length of the time cell;

modulation mode.

Optionally, the hybrid modulation type includes at least one of:

modulation type or bit mapping rule of the first part of bit information;

the modulation type or bit mapping rule of the second part of bit information.

Optionally, the hybrid modulation order includes one of:

Optionally, the length of the time unit includes one of:

the length of the first time unit and the length of the second time unit;

Optionally, the modulation mode includes: multiplexing mode or diversity mode.

Optionally, the apparatus further comprises: a first processing unit for:

determining the first configuration information according to the first information;

wherein the second device is a demodulation end of the first symbol.

amplitude modulation capability;

pulse modulation capability;

demodulation capability;

antenna capability.

The modulation device in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The modulation device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 10 to 13, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Fig. 20 is a second schematic structural diagram of a modulation device according to an embodiment of the present disclosure. As shown in fig. 20, the modulation device 2000 includes:

a first obtaining unit 2010, configured to obtain a first symbol, where the first symbol is a modulation symbol that includes first part of bit information and second part of bit information;

a first demodulation unit 2020 is configured to demodulate the first symbol to obtain the first portion of bit information and/or the second portion of bit information.

Optionally, the demodulating the first symbol includes:

a mixed modulation type;

mixing modulation orders;

the length of the time cell;

modulation mode.

Optionally, the hybrid modulation type includes at least one of:

modulation type or bit mapping rule of the first part of bit information;

the modulation type or bit mapping rule of the second part of bit information.

Optionally, the hybrid modulation order includes one of:

Optionally, the length of the time unit includes one of:

the length of the first time unit and the length of the second time unit;

Optionally, the modulation mode includes: multiplexing mode or diversity mode.

Optionally, the apparatus further comprises: a second processing unit for:

determining the second configuration information according to the first information;

or reporting the capability information of the second device to a third device, and receiving the second configuration information sent by the third device, wherein the second configuration information is determined by the third device according to the first information;

amplitude modulation capability;

pulse modulation capability;

demodulation capability;

antenna capability.

Optionally, the second device includes one or more demodulation ends.

The modulation device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 14 to 17, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Fig. 21 is a third schematic structural diagram of a modulation device according to an embodiment of the present disclosure. As shown in fig. 21, the modulation apparatus 2100 includes:

a first receiving unit 2110, configured to receive capability information of a first device and/or a second device, where the first device is a modulation end of a first symbol, and the second device is a demodulation end of the first symbol, and the first symbol is a modulation symbol that includes first part of bit information and second part of bit information;

a first execution unit 2120 for executing a first operation;

wherein the first operation comprises:

amplitude modulation capability;

pulse modulation capability;

demodulation capability;

antenna capability.

radio resource control, RRC, signaling;

a medium access control unit (MAC CE);

physical layer signaling.

The modulation device provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 18, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Optionally, as shown in fig. 22, the embodiment of the present application further provides a communication device 2200, including a processor 2201 and a memory 2202, where the memory 2202 stores a program or an instruction that can be executed on the processor 2201, for example, when the communication device 2200 is a terminal, the program or the instruction implements each step of the above-mentioned modulation method embodiment when executed by the processor 2201, and can achieve the same technical effect. When the communication device 2200 is a network side device, the program or the instruction, when executed by the processor 2201, implements the steps of the above-described modulation method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides first equipment, which comprises a processor and a communication interface, wherein the processor is used for modulating bit information by the first equipment to obtain a first symbol, wherein a first part of bit information in the bit information is mapped to the symbol, and a second part of bit information in the bit information is mapped to the position or interval of the symbol. The first device embodiment corresponds to the first device-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the first device embodiment, and the same technical effects can be achieved. Specifically, when the first device is a terminal, fig. 23 is a schematic hardware structure of the terminal for implementing an embodiment of the present application.

The terminal 2300 includes, but is not limited to: at least some of the components of the radio frequency unit 2301, the network module 2302, the audio output unit 2303, the input unit 2304, the sensor 2305, the display unit 2306, the user input unit 2307, the interface unit 2308, the memory 2309 and the processor 2310.

Those skilled in the art will appreciate that the terminal 2300 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 23 via a power management system to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 23 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 2304 may include a graphics processing unit (Graphics Processing Unit, GPU) 23041 and a microphone 23042, with the graphics processor 23041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 2306 may include a display panel 23061, and the display panel 23061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 2307 includes at least one of a touch panel 23071 and other input devices 23072. The touch panel 23071 is also referred to as a touch screen. The touch panel 23071 may include two parts, a touch detection device and a touch controller. Other input devices 23072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving the downlink data from the network side device, the radio frequency unit 2301 may transmit the downlink data to the processor 2310 for processing; in addition, the radio frequency unit 2301 may send uplink data to the network side device. In general, the radio frequency unit 2301 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 2309 may be used to store software programs or instructions and various data. The memory 2309 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 2309 may include volatile memory or nonvolatile memory, or the memory 2309 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), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 2309 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 2310 may include one or more processing units; optionally, the processor 2310 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 2310.

The processor 2310 is configured to modulate bit information to obtain a first symbol, where a first part of bit information in the bit information is mapped to a symbol, and a second part of bit information in the bit information is mapped to a position or an interval of the symbol.

Optionally, the first time unit is an integer multiple of the second time unit.

Optionally, the modulating the bit information includes:

Optionally, the radio frequency unit 2301 is configured to:

wherein the second device is a demodulation end of the first symbol.

A mixed modulation type;

mixing modulation orders;

the length of the time cell;

modulation mode.

Optionally, the hybrid modulation type includes at least one of:

modulation type or bit mapping rule of the first part of bit information;

the modulation type or bit mapping rule of the second part of bit information.

Optionally, the hybrid modulation order includes one of:

Optionally, the length of the time unit includes one of:

the length of the first time unit and the length of the second time unit;

Optionally, the modulation mode includes: multiplexing mode or diversity mode.

Optionally, the processor 2310 is further configured to:

wherein the second device is a demodulation end of the first symbol.

amplitude modulation capability;

pulse modulation capability;

demodulation capability;

antenna capability.

It should be noted that the second device or the third device may also be a terminal. When the second device or the third device is no longer a terminal, the functions of the components of the terminal are expanded.

The embodiment of the application also provides second equipment, which comprises a processor and a communication interface, wherein the processor is used for obtaining a first symbol, and the first symbol is a modulation symbol containing first part of bit information and second part of bit information; demodulating the first symbol to obtain the first part of bit information and/or the second part of bit information. The second device embodiment corresponds to the second device-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the second device embodiment, and the same technical effects can be achieved.

The embodiment of the application also provides a third device, which comprises a processor and a communication interface, wherein the communication interface is used for receiving the capability information of the first device and/or the second device, the first device is a modulation end of a first symbol, the second device is a demodulation end of the first symbol, and the first symbol is a modulation symbol containing first part of bit information and second part of bit information; the processor is used for executing a first operation; wherein the first operation comprises: determining first configuration information according to the first information, and sending the first configuration information to the first equipment; or determining first configuration information and second configuration information according to the first information, and sending the first configuration information to the first equipment and the second configuration information to the second equipment; wherein the first information includes at least one of: capability information of the first device, capability information of the second device, channel state conditions. The third device embodiment corresponds to the third device-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the third device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the present application further provides a network side device, as shown in fig. 24, where the network side device 2400 includes: an antenna 2401, a radio frequency device 2402, a baseband device 2403, a processor 2404, and a memory 2405. The antenna 2401 is connected to a radio frequency device 2402. In the uplink direction, the radio frequency device 2402 receives information via the antenna 2401, and transmits the received information to the baseband device 2403 for processing. In the downlink direction, the baseband device 2403 processes information to be transmitted, and transmits the processed information to the radio frequency device 2402, and the radio frequency device 2402 processes the received information and transmits the processed information through the antenna 2401.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 2403, where the baseband apparatus 2403 includes a baseband processor.

The baseband apparatus 2403 may, for example, include at least one baseband board, where a plurality of chips are disposed on the baseband board, as shown in fig. 24, where one chip, for example, a baseband processor, is connected to the memory 2405 through a bus interface, so as to call a program in the memory 2405 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 2406, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 2400 according to the embodiment of the present invention further includes: instructions or programs stored in the memory 2405 and executable on the processor 2404, the processor 2404 calls the instructions or programs in the memory 2405 to execute the method executed by each module shown in fig. 10 or 14 or fig. 18, and achieve the same technical effects, so that repetition is avoided, and therefore, the description is omitted herein.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction realizes each process of the above-mentioned modulation method embodiment, and the same technical effect can be achieved, so that repetition is avoided, and no further description is given here.

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

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or an instruction, implementing each process of the above-mentioned modulation method embodiment, and achieving the same technical effect, so as to avoid repetition, and no redundant description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where 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 each process of the above-mentioned modulation method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a communication system, which comprises: the terminal can be used for executing the steps of the modulation method, and the network side device can be used for executing the steps of the modulation method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A modulation method, comprising:

2. The method of claim 1, wherein the position of the symbol is a position or an permutation of positions of the symbol within a first time unit; the symbol interval is the number of second time units between two symbols.

3. The method of claim 2, wherein the first time unit is an integer multiple of the second time unit.

4. A method according to claim 3, wherein the multiple of the length of the first time unit relative to the length of the second time unit is fixed or non-fixed.

5. The method of claim 2, wherein in the case where a guard slot exists between two symbols, the number of second time units between the two symbols is 1 or more.

6. The method of claim 2, wherein the length of the first symbol is the length of the first time unit.

7. The method according to any of claims 1-6, wherein the first part of bit information and the second part of bit information are different bit information; alternatively, the first partial bit information and the second partial bit information are the same bit information.

8. The method according to any of claims 1-7, wherein the modulating the bit information comprises:

9. The method according to any one of claims 1-8, further comprising:

and sending first indication information to the second equipment, wherein the first indication information is used for indicating the modulated or demodulated parameters.

10. The method according to claim 8 or 9, wherein the first configuration information or first indication information comprises at least one of:

a mixed modulation type;

mixing modulation orders;

the length of the time cell;

modulation mode.

11. The method of claim 10, wherein the hybrid modulation type comprises at least one of:

modulation type or bit mapping rule of the first part of bit information;

The modulation type or bit mapping rule of the second part of bit information.

12. The method of claim 11, wherein the modulation type comprises at least one of: modulating multiple carriers; single carrier modulation; single-dimensional modulation; two-dimensional modulation; absolute modulation; relative modulation; and (5) differential modulation.

13. The method of claim 10, wherein the hybrid modulation order comprises one of:

14. The method of claim 10, wherein the length of the time unit comprises one of:

the length of the first time unit and the length of the second time unit;

15. The method according to any one of claims 1-14, further comprising:

or, receiving first configuration information sent by third equipment, wherein the first configuration information is determined by the third equipment according to the first information;

wherein the second device is a demodulation end of the first symbol.

16. The method of claim 15, wherein the capability information of the first device or the second device comprises at least one of:

amplitude modulation capability;

pulse modulation capability;

demodulation capability;

antenna capability.

17. The method of claim 15, wherein the channel state conditions comprise historical channel state information, or real-time channel state information.

18. A modulation method, comprising:

19. The method of claim 18, wherein demodulating the first symbol comprises:

the positions of the symbols or the intervals of the symbols of the first symbol are inversely mapped into a second part of bit information.

20. The method of claim 19, wherein the position of the symbol is a position or an permutation of positions of the symbol within a first time unit; the symbol interval is the number of second time units between two symbols.

21. The method of claim 20, wherein the length of the first time unit is an integer multiple of the length of the second time unit.

22. The method of claim 21, wherein a multiple of the length of the first time unit relative to the length of the second time unit is fixed or non-fixed.

23. The method of claim 20, wherein the number of second time units between two symbols is greater than or equal to 1 in the presence of a guard slot between the two symbols.

24. The method of claim 20, wherein the length of the first symbol is the length of the first time unit.

25. The method according to any of claims 18-24, wherein the first part of bit information and the second part of bit information are different bit information; alternatively, the first partial bit information and the second partial bit information are the same bit information.

26. The method according to any of claims 18-25, wherein said demodulating the first symbol comprises:

27. The method of claim 26, wherein the second configuration information or first indication information comprises at least one of:

a mixed modulation type;

mixing modulation orders;

the length of the time cell;

modulation mode.

28. The method of claim 27, wherein the hybrid modulation type comprises at least one of:

Modulation type or bit mapping rule of the first part of bit information;

the modulation type or bit mapping rule of the second part of bit information.

29. The method of claim 28, wherein the modulation type comprises at least one of: modulating multiple carriers; single carrier modulation; single-dimensional modulation; two-dimensional modulation; absolute modulation; relative modulation; and (5) differential modulation.

30. The method of claim 27, wherein the hybrid modulation order comprises one of:

31. The method of claim 27, wherein the length of the time unit comprises one of:

the length of the first time unit and the length of the second time unit;

32. The method according to any one of claims 26-31, further comprising:

or receiving the second configuration information sent by the third device, wherein the second configuration information is determined by the third device according to the first information;

33. The method of claim 32, wherein the capability information of the first device or the second device comprises at least one of:

amplitude modulation capability;

pulse modulation capability;

demodulation capability;

antenna capability.

34. The method of claim 32, wherein the channel state conditions comprise historical channel state information, or real-time channel state information.

35. The method of any of claims 18-34, wherein the second device comprises one or more demodulation ends.

36. A modulation method, comprising:

The third device performs a first operation;

wherein the first operation comprises:

37. The method of claim 36, wherein the capability information of the first device or the second device comprises at least one of:

amplitude modulation capability;

pulse modulation capability;

demodulation capability;

antenna capability.

38. The method of claim 36, wherein the channel state conditions comprise historical channel state information, or real-time channel state information.

39. The method of claim 36, wherein the first configuration information or the second configuration information is carried by one of:

radio resource control, RRC, signaling;

A medium access control unit (MAC CE);

physical layer signaling.

40. A modulation apparatus, comprising:

41. A modulation apparatus, comprising:

42. A modulation apparatus, comprising:

A first execution unit configured to execute a first operation;

wherein the first operation comprises:

43. A communication device comprising a processor and a memory storing a program or instructions executable on the processor, the program or instructions implementing the steps of the modulation method according to any one of claims 1 to 17, or the steps of the modulation method according to any one of claims 18 to 35, or the steps of the modulation method according to any one of claims 36 to 39 when executed by the processor.

44. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the modulation method according to any one of claims 1 to 17, or the steps of the modulation method according to any one of claims 18 to 35, or the steps of the modulation method according to any one of claims 36 to 39.