CN117834083A

CN117834083A - Modulation and demodulation method, device, equipment, system and storage medium

Info

Publication number: CN117834083A
Application number: CN202211204771.3A
Authority: CN
Inventors: 黄伟
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2024-04-05
Also published as: WO2024067598A1

Abstract

The application discloses a modulation and demodulation method, a device, equipment, a system and a storage medium, which belong to the technical field of communication, and the modulation method in the embodiment of the application comprises the following steps: segmenting bits to be modulated according to first configuration information to obtain N segmented bits, wherein the first configuration information is used for indicating modulation parameters of the bits to be modulated, and N is a positive integer; and respectively adopting an initial symbol to carry out relative modulation on each segmented bit to obtain a modulation symbol of each segmented bit, and sending the modulation symbols subjected to relative modulation on N segmented bits to demodulation end equipment.

Description

Modulation and demodulation method, device, equipment, system and storage medium

Technical Field

The application belongs to the technical field of communication, and in particular relates to a modulation and demodulation method, a modulation and demodulation device, a modulation and demodulation equipment, a modulation and demodulation system and a storage medium.

Background

Signal modulation is the conversion of a transmitted analog signal or digital information into a signal suitable for channel transmission. Digital baseband signals typically have a rich low frequency energy and the carrier wave may be modulated with the digital baseband signal to match the transmission signal to the characteristics of the wireless channel. In order to improve the frequency band utilization of the communication system, a high-order modulation mode may be adopted to achieve the purpose. With the increase of the modulation order, the euclidean distance of the constellation point in the euclidean space decreases, so that the probability of generating a decision error increases. Since the demodulation end needs to determine the reference constellation point according to the pilot signal sent by the transmission end in order to ensure the Bit Error Rate (BER) performance of the high-order modulation, otherwise, poor demodulation performance occurs, which needs to send the pilot reference signal capable of carrying all constellation points by the transmission end.

At present, relative modulation is realized based on polarity change, information demodulation can be completed without tracking carrier phase and estimating channel parameters, and demodulation equipment can complete signal demodulation only by simply judging polarity with reference symbols, so that the complexity of a transmitting end and a receiving end is reduced. However, a problem with such a polarity change based implementation of the relative modulation is that: it is necessary to set an initial reference symbol or initial reference waveform, on the basis of which the subsequent modulation symbols are modulated. In demodulation, the demodulation of each symbol needs to depend on the correct demodulation of the initial reference symbol, otherwise, error propagation problem in demodulation is caused, and thus the overall demodulation performance of the system is deteriorated. Thus, how to avoid the problem of error propagation in relative modulation is a highly desirable problem.

Disclosure of Invention

The embodiment of the application provides a modulation and demodulation method, a device, equipment, a system and a storage medium, which can solve the problem of how to avoid error propagation in relative modulation.

In a first aspect, a modulation method is provided and applied to a modulation end device, where the modulation method includes: segmenting bits to be modulated according to first configuration information to obtain N segmented bits, wherein the first configuration information is used for indicating modulation parameters of the bits to be modulated, and N is a positive integer; and respectively adopting an initial symbol to carry out relative modulation on each segmented bit to obtain a modulation symbol of each segmented bit, and sending the modulation symbols subjected to relative modulation on N segmented bits to demodulation end equipment.

In a second aspect, there is provided a modulation apparatus applied to a modulation end device, the modulation apparatus including: the device comprises a segmentation module, a modulation module and a sending module. The segmentation module is used for segmenting the bits to be modulated according to first configuration information to obtain N segmented bits, wherein the first configuration information is used for indicating modulation parameters of the bits to be modulated, and N is a positive integer. And the modulation module is used for carrying out relative modulation on each segmented bit obtained by the segmentation module by adopting an initial symbol respectively to obtain a modulation symbol of each segmented bit. And the transmitting module is used for transmitting the modulation symbols which are obtained by the modulating module and are modulated by the N segmented bits relatively to the demodulating end equipment.

In a third aspect, a demodulation method is provided and applied to a demodulation end device, and the method includes: receiving a relative modulation symbol sent by modulation terminal equipment, wherein the relative modulation symbol is a modulation symbol obtained by relatively modulating N segmented bits by the modulation terminal equipment, the N segmented bits are obtained by segmenting bits to be modulated by the modulation terminal equipment, and N is a positive integer; according to the first information, carrying out segmented demodulation on the relative modulation symbols; wherein the first information includes any one of:

The second configuration information is used for indicating modulation parameters corresponding to the relative modulation symbols;

demodulation instruction information for instructing demodulation parameters of the relative modulation symbols;

the second configuration information and the demodulation instruction information together form parameter information of demodulation relative modulation.

In a fourth aspect, there is provided a demodulation apparatus applied to a demodulation-side device, the demodulation apparatus including: a receiving module and a demodulating module. The receiving module is used for receiving a relative modulation symbol sent by the modulation terminal equipment, wherein the relative modulation symbol is a modulation symbol obtained by relatively modulating N segmented bits by the modulation terminal equipment, the N segmented bits are obtained by segmenting the bits to be modulated by the modulation terminal equipment, and N is a positive integer. And the demodulation module is used for carrying out segmented demodulation on the relative modulation symbols received by the receiving module according to the first information. Wherein the first information includes any one of:

In a fifth aspect, there is provided a modulation-side device comprising a processor and a memory storing a program or instructions executable on said processor, said program or instructions implementing the steps of the method according to the first aspect when executed by said processor.

In a sixth aspect, a modulation end device is provided, including a processor and a communication interface, where the processor is configured to segment a bit to be modulated according to first configuration information, to obtain N segment bits, where the first configuration information is used to indicate a modulation parameter of the bit to be modulated, and N is a positive integer; and respectively adopting an initial symbol to carry out relative modulation on each segmented bit to obtain a modulation symbol of each segmented bit. The communication interface is used for sending modulation symbols which are modulated relatively to the N segmented bits to the demodulation terminal equipment.

In a seventh aspect, there is provided a demodulation-side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the third aspect.

In an eighth aspect, a demodulation end device is provided, including a processor and a communication interface, where the communication interface is configured to receive a relative modulation symbol sent by a modulation end device, where the relative modulation symbol is a modulation symbol obtained by relatively modulating N segment bits by the modulation end device, where the N segment bits are obtained by segmenting a bit to be modulated by the modulation end device, and N is a positive integer. The processor is used for carrying out segmented demodulation on the relative modulation symbols according to the first information; wherein the first information includes any one of:

In a ninth aspect, there is provided a communication system comprising: a modulation-side device operable to perform the steps of the modulation method as described in the first aspect and a demodulation-side device operable to perform the steps of the demodulation method as described in the third aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the third aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the modulation method as described in the first aspect, or to implement the steps of the demodulation method as described in the third aspect.

In this embodiment of the present application, the modulation end device may segment the bits to be modulated according to the first configuration information to obtain N segment bits, and relatively modulate each segment bit with an initial symbol to obtain a modulation symbol of each segment bit, and send the modulation symbol obtained by relatively modulating the N segment bits to the demodulation end device. In the scheme, the modulation end equipment can carry out segmented relative modulation on the input bits to be modulated, and each segment carries out relative modulation based on the new initial symbol, so that the problem of error propagation caused by adopting the same initial reference symbol to carry out relative modulation can be effectively avoided, and the overall modulation and demodulation performance of the system and the transmission reliability of the system are improved.

Drawings

Fig. 1 is a schematic architecture diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a frame structure of a modulated signal provided by the related art;

fig. 3 is a schematic diagram of a baseband signal waveform provided by the related art;

fig. 4 is a flowchart of a modulation method provided in an embodiment of the present application;

fig. 5 is a schematic diagram of a segment relative modulation symbol of a modulation end device according to an embodiment of the present application;

fig. 6 is a schematic diagram of a carrying manner of correction bits according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a proportional design of modulation symbols and correction bits according to an embodiment of the present application;

FIG. 8 is a second diagram of a proportional design of modulation symbols and correction bits according to an embodiment of the present application;

fig. 9 is a flowchart of a demodulation method provided in an embodiment of the present application;

fig. 10 is a flowchart of a modulation and demodulation method according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a modulation device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a demodulation device according to an embodiment of the present application;

fig. 13 is a schematic hardware structure of a communication device according to an embodiment of the present application;

Fig. 14 is a schematic hardware structure of a UE according to 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 UE11 and a network device 12. The UE11 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 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 UE11 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.

Some concepts and/or terms related to a modulation method, a demodulation method, a device, an apparatus, a system, and a storage medium provided in the embodiments of the present application are explained below.

Signal modulation is critical to communication systems and may convert transmitted analog signals or digital information into signals suitable for channel transmission. Digital baseband signals tend to have a rich low frequency energy and therefore the carrier wave (including amplitude, phase, frequency, etc. dimensions) must be modulated with the digital baseband signal to match the characteristics of the wireless channel. In addition, how to improve the frequency band utilization of a communication system has been an important point in the communication field, and higher-order modulation is one of effective ways to improve the spectrum efficiency. Conventional distinction in modulation dimension can be divided into single-dimensional modulation and two-dimensional modulation, where typical single-dimensional modulation includes: binary Amplitude Shift Keying (ASK), binary Frequency Shift Keying (FSK), binary Phase Shift Keying (PSK) modulation, etc.; the two-dimensional modulation includes Quadrature Amplitude Modulation (QAM), amplitude phase 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 the system is required to operate in a high Signal-to-Noise Ratio (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 transmitted by the transmission end, otherwise, demodulation performance is poor, which requires the transmission end to transmit 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.

The relative modulation can be realized based on the polarity change, the information demodulation can be completed without tracking carrier phase and estimating channel parameters, and the demodulation equipment can complete the signal demodulation only by simply judging the polarity of the reference symbol, so that the complexity of a transmitting end and a receiving end is reduced. Therefore, the modulation mode has strong transmission reliability on signal interference and channel attenuation. However, the problem with this implementation of relative modulation based on polarity change is that: it is necessary to set an initial reference symbol or initial reference waveform, on the basis of which the subsequent modulation symbols are modulated. The demodulation of each symbol during demodulation needs to depend on the correct demodulation of the initial reference symbol, otherwise, error propagation problem in demodulation is caused, and thus the overall demodulation performance of the system is deteriorated.

In order to reduce the demodulation complexity of the demodulation end, the bit information can be carried jointly by utilizing the correlation value or polarity change of the difference value between adjacent time slots in the baseband signal and the correlation value or polarity change of the difference value between the reference time slot blocks, so that the demodulation end can complete signal demodulation only by simply judging the polarity of the reference time slot blocks. The corresponding principle is as follows:

1. Modulation end

A modulated signal, which is signal modulated according to the following rule, is transmitted. As shown in fig. 2, a schematic diagram of a frame structure of a modulated signal is shown. Taking p=4 in the information slot (Information slots) as an example (which can be extended to other lengths P), the modulated signal b (t) satisfies the following properties:

(a) Taking the correlation value of the difference between adjacent time slots (slots) in the Reference signal time slot (Reference slots) as the correlation value of the Reference bit, or taking the correlation value of the difference between adjacent slots in the Reference slots and the 1 st slot in Information slots as the correlation value of the Reference bit;

(I) When m=2, the reference information bit b=1 is represented by the product of the change in polarity from the 2 nd slot to the 1 st slot and the change in polarity from the 2 nd slot to the 1 st slot of Information slots; and the reference information bit b=0 is represented by the product of the change in polarity from the 1 st slot to the 2 nd slot of Information slots and the change in polarity from the 2 nd slot to the 1 st slot.

(II) when m=3, representing the reference information bit b=1 by the product of the change in polarity from the 2 nd slot to the 1 st slot and the change in polarity from the 2 nd slot to the 3 rd slot; and the reference information bit b=0 is represented by the product of the polarity change from the 3 rd slot to the 2 nd slot and the polarity change from the 2 nd slot to the 1 st slot.

(III) when m=3, or representing the reference information bit b=1 by the product of the polarity change from the 2 nd slot to the 1 st slot and the polarity change from the 3 rd slot to the 1 st slot of Information slots; and the reference information bit b=0 is represented by the product of the change in polarity from the 1 st slot to the 3 rd slot of Information slots and the change in polarity from the 2 nd slot to the 1 st slot.

(IV) when m=4, the reference signal b=1 is represented by the product of the polarity change from the 4 th slot to the 3 rd slot and the polarity change from the 2 nd slot to the 1 st slot, and the reference signal b=0 is represented by the product of the polarity change from the 3 rd slot to the 4 th slot and the polarity change from the 2 nd slot to the 1 st slot.

(V) when m=4, the reference signal b=1 is represented by the product of the polarity change from the 3 rd slot to the 4 th slot and the polarity change from the 2 nd slot to the 1 st slot, and the reference signal b=0 is represented by the product of the polarity change from the 4 th slot to the 3 rd slot and the polarity change from the 2 nd slot to the 1 st slot.

(b) If the 1 st slot in Information slots is used as the calculated slot of the Reference bit correlation value or the generalized Reference slots, the baseband signals of the P slots of Information slots in each basic slot block satisfy: the level of the 1 st slot of Information slots is opposite to the level of the last 1 slots of Reference slots.

(c) The information bits are represented by correlation values of differences between adjacent slots in Information slots.

(I) When m=2, 3,4, the information bit is represented by the product of the change in polarity from the 4 th slot to the 3 rd slot and the change in polarity from the 2 nd slot to the 1 st slot;

(II) when m=2, 3,4, or representing the information bit by the product of the polarity change from the 3 rd slot to the 4 th slot and the polarity change from the 2 nd slot to the 1 st slot;

2. demodulation terminal

After the demodulation end performs synchronization, find the start of each Reference slots or basic time slot blocks, and perform demodulation according to the following rules:

(a) Firstly, constructing correlation values representing adjacent slot relative values of information bits B=1 and B=0 according to the rule of signal modulation according to Reference information time slots of M Reference slots, and respectively recording the correlation values as

(b) Sequentially demodulating Q data information bits in P×Q Information slots, and demodulating corresponding data information bits by taking P Information slots as a basic unit;

(I) Constructing correlation values of adjacent slot relative values in Information slots according to a rule of signal modulation, and respectively marking the correlation values as C ^inf ；

(II) using the correlation value C of the relative value in the constructed Information slots ^inf Correlation values with two relative values characterizing information bits b=1 and b=0 constructed in Reference slots Performing correlation processing;

(III) optionally, if the radio frequency source transmits K (K is a positive integer) repeated basic slot blocks for noise smoothing, then the K repeated basic slot blocks may be utilized for noise smoothing;

(IV) making decisions according to the following rules

(c) Q information bits in the same basic slot block are demodulated in the same way as in (b), the Q information slot blocks sharing the same reference slot block.

Exemplary, as shown in fig. 3, a schematic diagram of the baseband signal waveform when m=2 and p=4 is shown. Taking m=2 and p=4 as examples, the method can be extended to a scene of m=3 and 4, and the modulation process and the demodulation process are explained.

The modulation process comprises the following steps:

when m=2 in Reference slots, b (t) satisfies the following properties:

(1) The baseband signals of the M slots of Reference slots in each basic slot block are:

wherein, the reference information bit b=1 is represented by the product of the polarity change from the 2 nd slot to the 1 st slot and the polarity change from the 2 nd slot to the 1 st slot of Information slots; the reference information bit b=0 is represented by the product of the change in polarity from the 1 st slot to the 2 nd slot of Information slots and the change in polarity from the 2 nd slot to the 1 st slot.

(2) Correspondingly, the baseband signal of P slots of Information slots in each basic slot block satisfies the waveform property that the level of the 1 st slot of Information slots is opposite to the level of the last 1 slots of Reference slots. The information bit is represented by the product of the polarity change from the 4 th slot to the 3 rd slot and the polarity change from the 2 nd slot to the 1 st slot.

(I) If the modulation side transmits bit b=1, there are:

if the BSC transmitting apparatus transmits bit b=0, there are:

(II) the baseband signal of P slots of Information slots in each basic slot block satisfies the waveform property that the level of the 1 st slot of Information slots is opposite to the level of the last 1 slots of Reference slots. The information bit is represented by the product of the polarity change from the 3 rd slot to the 4 th slot and the polarity change from the 2 nd slot to the 1 st slot.

If the modulation side transmits bit b=0, there are:

if the modulation side transmits bit b=1, there are:

(3) Alternatively, the baseband signals of the M slots of the Reference slots in each basic slot block are:

wherein, the reference information bit b=1 is represented by the product of the polarity change from the 2 nd slot to the 1 st slot and the polarity change from the 2 nd slot to the 1 st slot of Information slots; the reference information bit b=0 is represented by the product of the change in polarity from the 1 st slot to the 2 nd slot of Information slots and the change in polarity from the 2 nd slot to the first slot.

(I) Correspondingly, the baseband signals of P slots of Information slots in each basic slot block satisfy: the level of slot 1 of Information slots is opposite to the last slot level of the Reference slots. The information bit is represented by the product of the polarity change from the 4 th slot to the 3 rd slot and the polarity change from the 2 nd slot to the 1 st slot.

If the BSC transmitting apparatus transmits bit b=1, there are:

if the BSC transmitting apparatus transmits bit b=0, there are:

(II) the baseband signals of P slots of Information slots in each basic slot block satisfy: the level of the first slot of Information slots is opposite to the last slot level of the Reference slots. The information bit is represented by the product of the polarity change from the 3 rd slot to the 4 th slot and the polarity change from the 2 nd slot to the 1 st slot.

If the modulation side transmits bit b=0, there are:

if the modulation side transmits bit b=1, there are:

the demodulation process comprises the following steps:

(1) Firstly, constructing correlation values of adjacent slot relative values representing information bits B=1 and B=0 according to Reference information slots of M=2 Reference slots and signal modulation rules of M=2 and P=4, and respectively recording the correlation values as

(I) In signal modulation, the reference information bit b=1 is represented by the product of the change in polarity from the 2 nd slot to the 1 st slot and the change in polarity from the 2 nd slot to the 1 st slot of Information slots. Thus, for a basic slot block, taking the first slot of the first 2 slots and Information slots as Reference slots, subtracting the 1 st slot from the 2 nd slot, subtracting the first slot of Information slots from the 2 nd slot, and obtaining the difference value respectively:

z ₁₁ (mN+n)＝y((m+1)N+n)-y(mN+n)

＝αs(mN+n)(b((m+1)N+n)-b(mN+n))h _st h _tr +w((m+1)N+n)-w(mN+n)

z ₁₂ (mN+n)＝y((m+1)N+n)-y((m+2)N+n)

＝αs(mN+n)(b((m+1)N+n)-b((m+2)N+n))h _st h _tr +w((m+1)N+n)-w((m+2)N+n)

Wherein τ ₂ ≤n≤N+τ ₁ -1, mod (M, 2) =0, 0.ltoreq.m < M. As can be derived from the expression yes, since the data s (t) of two adjacent slots are identical, the direct link interference term is eliminated; but also causes the power of the noise term of the received signal to rise, the noise power becoming twice that of the previous.

(II) constructing a correlation value characterizing the relative value of reference b=1, with:

in (III) signal modulation, the reference information bit b=0 is represented by the product of the change in polarity from the 1 st slot to the 2 nd slot of Information slots and the change in polarity from the 2 nd slot to the 1 st slot. Thus, for a basic slot block, taking the first slot of the first 2 slots and Information slots as reference_slots, subtracting the 1 st slot from the 2 nd slot, and subtracting the 2 nd slot from the first slot of Information slots, respectively, to obtain the difference value:

z ₀₁ (mN+n)＝y((m+1)N+n)-y(mN+n)

＝αs(mN+n)(b((m+1)N+n)-b(mN+n))h _st h _tr +w((m+1)N+n)-w(mN+n)

z ₀₂ (mN+n)＝y((m+2)N+n)-y((m+1)N+n)

＝αs(mN+n)(b((m+2)N+n)-b((m+1)N+n))h _st h _tr +w((m+2)N+n)-w((m+1)N+n)

wherein τ ₂ ≤n≤N+τ ₁ -1，mod(m，2)＝0，0≤m＜M。

(IV) constructing a correlation value characterizing the relative value of reference b=0, with:

(2) The Q data information bits in p×q Information slots are demodulated in sequence, and P Information slots are taken as a basic unit to demodulate the corresponding data information bits:

(I) Constructing correlation values of adjacent slot relative values in Information slots according to preset rules, and respectively marking the correlation values as C ^inf ；

(a1) If the signal modulation is to represent the information bit by the product of the change in polarity from the 4 th slot to the 3 rd slot and the change in polarity from the 2 nd slot to the 1 st slot in Information slots. Thus, for a slot p=4, the base Information slots, i.e. the 2 nd slot minus the 1 st slot, the 4 th slot minus the 3 rd slot, a difference is obtained

z(mN+n)＝y((m+1)N+n)-y(mN+n)

＝αs(mN+n)(b((m+1)N+n)-b(mN+n))h _st h _tr +w((m+1)N+n)-w(mN+n)

Wherein τ ₂ ≤n≤N+τ ₁ -1，mod(m，4)＝even，M≤m＜M+P。

(b1) Solving the difference z (mN+n) or the average value of the differences obtained by two slots in the same Information slotsIs obtained by:

(a2) If the signal modulation is to represent the information bit by the product of the polarity change from the 3 rd slot to the 4 th slot and the polarity change from the 2 nd slot to the 1 st slot in Information slots. Thus, for a slot p=4, the base Information slots, i.e. 2 nd slot minus 1 st slot, 3 rd slot minus 4 th slot, gives the difference

z ₁ (mN+n)＝y((m+1)N+n)-y(mN+n)

＝αs(mN+n)(b((m+1)N+n)-b(mN+n))h _st h _tr +w((m+1)N+n)-w(mN+n)

Wherein τ ₂ ≤n≤N+τ ₁ -1，mod(m，4)＝0，M≤m＜M+P。

z ₂ (mN+n)＝y(mN+n)-y((m+1)N+n)

＝αs(mN+n)(b(mN+n)-b((m+1)N+n))h _st h _tr +w(mN+n)-w((m+1)N+n)

Wherein τ ₂ ≤n≤N+τ ₁ -1，mod(m，4)＝2，M≤m＜M+P。

(b2) Solving the difference z (mN+n) or the average value of the differences obtained by two slots in the same Information slotsIs obtained by:

(II) using the correlation value C of the relative value in the constructed Information slots ^inf Correlation values with two relative values characterizing information bits b=1 and b=0 constructed in Reference slots Performing correlation processing

(IV) making decisions according to the following rules

And (V) sequentially demodulating Q information bits in the same basic time slot block according to the steps (I) - (IV).

The modulation method and the demodulation method provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

Conventional distinction in modulation dimension can be divided into single-dimensional modulation and two-dimensional modulation, where typical single-dimensional modulation includes: ASK, FSK, PSK modulation, etc.; the two-dimensional modulation includes QAM, APSK, etc. 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.

The relative modulation can be realized based on the polarity change, the information demodulation can be completed without tracking carrier phase and estimating channel parameters, and the demodulation equipment can complete the signal demodulation only by simply judging the polarity of the reference symbol, so that the complexity of a transmitting end and a receiving end is reduced. And, this relative modulation has very strong transmission reliability to signal interference, channel attenuation. However, the problem with this implementation of relative modulation based on polarity change is that: it is necessary to set an initial reference symbol or initial reference waveform, on the basis of which the subsequent modulation symbols are modulated. The demodulation of each symbol during demodulation needs to depend on the correct demodulation of the initial reference symbol, otherwise, error propagation problem in demodulation is caused, and thus the overall demodulation performance of the system is deteriorated. How to solve the problem of error propagation in relative modulation based on the same initial reference symbols is a precondition for ensuring the reliability of the communication system, and there is currently no efficient way to solve such problem.

In order to solve the above problem, in the embodiment of the present application, the modulation end device may segment the bits to be modulated according to the first configuration information to obtain N segment bits, and relatively modulate each segment bit with an initial symbol to obtain a modulation symbol of each segment bit, and send the modulation symbol after relatively modulating the N segment bits to the demodulation end device. In the scheme, the modulation end equipment can carry out segmented relative modulation on the input bits to be modulated, and each segment carries out relative modulation based on the new initial symbol, so that the problem of error propagation caused by adopting the same initial reference symbol to carry out relative modulation can be effectively avoided, and the overall modulation and demodulation performance of the system and the transmission reliability of the system are improved.

The embodiment of the application provides a modulation method, and fig. 4 shows a flowchart of the modulation method provided by the embodiment of the application. As shown in fig. 4, the modulation method provided in the embodiment of the present application may include the following steps 201 and 202.

Step 201, the modulation end device segments the bits to be modulated according to the first configuration information to obtain N segment bits.

In this embodiment of the present application, the first configuration information is used to indicate a modulation parameter of a bit to be modulated, and N is a positive integer.

In this embodiment of the present application, the modulation end device may segment, according to the first configuration information, input bits to be modulated according to each k=m×l bits, to obtain N segmented bits, that is, each segmented bit includes K bits, and a modulation symbol of each segmented bit includes u modulation symbols. Wherein K, L, m and u are both positive integers.

Optionally, in an embodiment of the present application, the first configuration information includes at least one of:

the manner or type of relative modulation;

modulation order 2 ^L Or the power of the modulation order, L;

the number K of bits modulated by each segment bit or the number m of symbols modulated by each segment bit;

the number of segments N of bits to be modulated;

The number of transmitted symbols in each segment bit, u=m or u=m+1;

initial symbol for use in relative modulation of each segment bit

The manner in which the correction information is transmitted.

It should be noted that the relative modulation can be understood as: each segment bit is modulated by an initial symbol, or each segment bit is modulated based on the modulation result of the last segment bit during modulation.

Optionally, in an embodiment of the present application, the manner or type of the above relative modulation includes at least one of the following: amplitude-based modulation scheme (ASK), frequency-shift-based modulation scheme (FSK), phase-shift-based modulation scheme (PSK), quadrature amplitude modulation scheme (QAM), amplitude-phase-based modulation scheme (APSK), and the like.

It should be noted that, if the transmission is based on the following mode (1 a), the first configuration information may carry an initial symbol used for relative modulation every K bits or N segment bits, that is, an initial symbol used for relative modulation every segment bit

Optionally, in an embodiment of the present application, the first configuration information is determined by the first device according to at least one of the following:

capability information of the modulation end equipment and the demodulation end equipment;

Channel state information corresponding to the modulation end equipment and the demodulation end equipment;

preconfigured or predefined.

Alternatively, in the embodiment of the present application, the first device may be a system end device or a second device, and the second device may be a sending end device (modulation end device), a receiving end device (demodulation end device), or a third party network device node.

Optionally, in the embodiment of the present application, the modulation end device may be a User Equipment (UE), and the demodulation end device may be a UE.

Optionally, in the embodiment of the present application, the first device may send the first configuration information to the modulation end device/demodulation end device.

Optionally, in the embodiment of the present application, the first device may send the second configuration information to the modulation end device/demodulation end device.

Optionally, in the embodiment of the present application, after entering the connection state, the sending end device/receiving end device and the system end device report their UE capability information through a first signaling (UE Capability Enquiry-UE Capability Information).

Optionally, in the embodiment of the present application, after entering the connection state, the sending end device/receiving end device and the system end device report their UE capability information through a second signaling (UE Assistance Information).

Optionally, in the embodiment of the present application, in the initial registration or addition process, the sending end device/receiving end device and the system end device actively report their own UE capability information through an initial value message (Initial UE message).

Optionally, in the embodiment of the present application, the sending end device/receiving end device and the system end device may determine the first configuration information according to historical state information, that is, channel state information recorded when the device resides; alternatively, the transmitting device/receiving device and the system device may determine the first configuration information according to real-time status information, such as information status information obtained by estimation or by other means.

Optionally, in an embodiment of the present application, the first configuration information is carried by the first device through at least one of the following: radio resource Control (Radio Resource Control, RRC) signaling, medium access Control-Control Element (Media Access Control-Control Element, MAC-CE) signaling, layer 1 (L1) signaling.

Optionally, in this embodiment of the present application, each segment bit of the N segment bits includes K bits, where K is a positive integer. For any segmented bit in each segmented bit, the modulation symbols of the any segmented bit comprise u modulation symbols, the u modulation symbols are m modulation symbols or m+1 modulation symbols, and u and m are positive integers.

The m modulation symbols are symbols obtained by relatively modulating K bits of the arbitrary segmentation bits and an initial symbol; the first modulation symbol of the m+1 modulation symbols is an initial symbol, and the remaining modulation symbols of the m+1 modulation symbols are symbols obtained by relatively modulating the K bits of the arbitrary segment bit and the initial symbol.

It can be appreciated that (1 a) for the nth segment bit of the N segment bits, u=m+1 modulation symbols are generatedWherein 2 is ^L For the modulation order of the relative modulation, the first modulation symbol of m+1 modulation symbols is an initial symbol, and the latter m symbols are symbols obtained by relatively modulating k=m×l bits and the initial symbol. For the newly input k=m×l bits then the initial symbol +.>Relative modulation is performed to generate m+1 modulation symbols +.>The relative modulation is performed according to the same process. />

Alternatively, (1 b) generating u=m modulation symbols for the nth segment bit of the N segment bitsWherein 2 is ^L For the modulation order of the relative modulation, m symbols are symbols obtained by subjecting k=m×l bits and the initial symbol to the relative modulation. For the newly input k=m×l bits then the initial symbol +. >Performing relative modulation to generate m modulation symbols +.1 of the n+1th segment bits>The relative modulation is performed according to the same process.

Step 202, the modulation end device carries out relative modulation on each segmented bit by adopting an initial symbol respectively to obtain a modulation symbol of each segmented bit, and sends the modulation symbol after relative modulation on N segmented bits to the demodulation end device.

In this embodiment of the present application, for each segment bit of the N segment bits (i.e. each k=m×l bits), the modulation end device may respectively use each segment bit as an initial symbol according to the first configuration informationRelative modulation is performed to generate u modulation symbols for each segment bit.

It can be understood that, since each segment bit is relatively modulated by using one initial symbol, that is, N segment bits are relatively modulated by using N initial symbols, and the N initial symbols are not identical or completely different, the problem of error propagation caused by using the same initial reference symbol to perform the relative modulation can be effectively avoided.

Optionally, in the embodiment of the present application, an initial symbol (may also be referred to as an initial reference symbol) adopted by each segment bit is configured by the first configuration information, or is autonomously determined by the modulation end device and sends indication information of the initial symbol to the first device.

Illustratively, as shown in fig. 5, a schematic diagram of modulation end device segmentation versus modulation symbols is shown. The modulation end device can segment the input bits to be modulated (i.e. the bits to be modulated) to obtain multiple segment bits, and each segment bit is modulated by using a new initial reference symbolIn each segment bit of the modulation symbol the initial reference symbol +.>Two examples of modulation symbol segment designs are given in fig. 5 (a) and (B), respectively, where fig. 5 (a) is that the modulation symbol carries an initial reference symbol, and fig. 5 (B) is that the modulation symbol does not carry an initial reference symbol.

In this embodiment of the present application, after the modulation end device sends the modulation symbol after relatively modulating the N segment bits (i.e., the relative modulation symbol in the following embodiment) to the demodulation end device, the demodulation end device may perform segment demodulation on the relative modulation symbol. Specific embodiments may be referred to the following description of examples, which are not repeated here.

The embodiment of the application provides a modulation method, a modulation end device can segment a bit to be modulated according to first configuration information to obtain N segment bits, each segment bit is subjected to relative modulation by adopting an initial symbol to obtain a modulation symbol of each segment bit, and the modulation symbols after the N segment bits are subjected to relative modulation are sent to a demodulation end device. In the scheme, the modulation end equipment can carry out segmented relative modulation on the input bits to be modulated, and each segment carries out relative modulation based on the new initial symbol, so that the problem of error propagation caused by adopting the same initial reference symbol to carry out relative modulation can be effectively avoided, and the overall modulation and demodulation performance of the system and the transmission reliability of the system are improved.

Optionally, the modulation method provided in the embodiment of the present application further includes the following step 203.

Step 203, the modulation end device sends correction information to the demodulation end device according to the first configuration information.

In this embodiment of the present application, the correction information is used for correcting, by the demodulation end device, an error bit in the demodulated bit.

Optionally, in the embodiment of the present application, a manner in which the modulation end device sends the correction information includes any one of the following:

a first mode: inserting correction bits into the modulated modulation symbols of the modulated N segmentation bits every p symbols, wherein p is an integer greater than 1;

the second mode is as follows: correction bits are not inserted into the modulated symbols of the modulated N segment bits, and correction information is directly transmitted to demodulation end equipment.

Optionally, in the embodiment of the present application, in the first manner described above, the correction bits inserted every p symbols are demodulation bits of modulation symbols nearest to the correction bits.

Optionally, in the embodiment of the present application, in a case that a manner in which the modulation side device sends the correction information is the first manner:

the correction bits inserted in the modulated modulation symbols of each segment bit are q correction bit groups, and the q correction bit groups respectively correspond to q symbols in the modulated modulation symbols of each segment bit; or,

The modulated modulation symbols of the N segmented bits have a correction bit set every q segmented bits of the modulation symbols.

Each correction bit group comprises L check bits, L is the power of the modulation order, q is a positive number, and L is a positive integer.

It will be appreciated that, in a first manner,i.e. q symbols of the u modulation symbols of each segment bit have corresponding groups of correction bits, each group of correction bits having L bits. Alternatively, in the first mode, p=q×u, i.e. 1 symbol per q×u symbols has corresponding correction bit groups, each correction bit group having L bits.

Optionally, in the embodiment of the present application, in a case that a manner in which the modulation end device sends the correction information is the second manner: the correction information includes at least one of:

a symbol interval or symbol period for inserting correction bits;

the M symbols in the modulation symbols of the N segmented bits are provided with a correction bit group, the M symbols are determined by the number of the N segmented bits, the modulation symbol number of each segmented bit and the symbol interval of the inserted correction bits, and M is a positive integer.

It will be appreciated that in the second mode, the correction information includes a symbol interval or symbol period p, p being equal to or greater than 2, where p symbols are inserted into the correction bits, i.e. there is a correction bit group; and/or the correction information includes N×u modulation symbols Of correction bits, i.e. together +.>Each symbol (i.e., M symbols) has a corresponding set of correction bits, each set of correction bits having L correction bits.

Illustratively, as shown in fig. 6, a schematic diagram of the manner in which the correction bits are carried is shown. In one implementation, a set of correction bits is carried in a modulated modulation symbol, a set of correction bits corresponding to one symbol is inserted every p modulation symbols, and the correction bits are the correct demodulation bits corresponding to the p-th modulation symbol closest to the set, as shown in (a) in fig. 6, that is, the modulation symbol and the correction bits are sent in a unified manner. Another implementation, the modulation symbols are sent separately from the correction bit information, which carries all of the correction bit information for N segments, the firstCorrection bit group and->The p-th symbol of the modulation symbols with the number p is associated, i.e. the correct demodulation bit, as shown in fig. 6 (B), i.e. the modulation symbol and the correction bit are sent independently.

Also exemplary, as shown in fig. 7, a schematic diagram of a proportional design of modulation symbols to correction bits is shown. One implementation, p.ltoreq.u, also means that there are u modulation symbols per segment bit Each symbol has a corresponding correction bit. At the position ofIn this case, there may be four cases:

(1) q is a positive integer, then the ith (1.ltoreq.i.ltoreq.q) correction bit group is associated with the p-th symbol of the ith (1.ltoreq.i.ltoreq.q) sub-segment, as shown in (A) of FIG. 7, i.e., p.ltoreq.u andis an integer;

(2) q=1, i.e. p=u, which means that only 1 symbol of the u modulation symbols of each segment bit has a corresponding correction bit, i.e. the u modulation symbol has a correction bit, as shown in (B) of fig. 7, i.e. p=u;

(3) q is a fraction, then the ith (1.ltoreq.i.ltoreq.q-1) th correction bit group is associated with the p-th symbol of the ith (1.ltoreq.i.ltoreq.q-1) sub-segment, the qth correction bit group is associated with the p- (u- (q-1) p) th symbol in the next segment, as shown in (C) of FIG. 7, i.e., p.ltoreq.u andis a non-integer, cross-segment association;

(4) q is a fraction, then the ith (1.ltoreq.i.ltoreq.q-1) th correction bit group is associated with the p-th symbol of the ith (1.ltoreq.i.ltoreq.q-1) th sub-segment, the qth correction bit group is associated with the (u- (q-1) p) th symbol in the (u- (q-1) th p) th sub-segment, as shown in (D) of FIG. 7, i.e., p.ltoreq.u andis a non-integer and is associated with a segment.

In general, the proportional configuration of p.ltoreq.u can be suitable for communication scenes with high demodulation reliability requirements or less ideal channel states or scenes with excessive traditional demodulation error rates.

Also exemplary, as shown in fig. 8, a schematic diagram of a modulation symbol to correction bit ratio design is shown. Another implementation, p>u, which also means that there is no symbol-corresponding correction bit in the u modulation symbols of each segment bit, but instead there is one symbol-corresponding correction bit per q·u symbols, whichMiddle q>Presence in 1, N segment bitsAnd a plurality of correction bit groups, each bit group being L bits in length. In this case, there may be the following three cases:

(1) q is an integer, then the ith (1.ltoreq.i.ltoreq.w) correction bit group is associated with the ith symbol of the ith×q (1.ltoreq.i.ltoreq.w) segment, as shown in (a) of fig. 8, i.e., p > u, and q is an integer;

(2) In a special case, when q=n, then only one correction bit group of the N segment bits is associated with the u-th symbol of the nth segment bit, as shown in (B) of fig. 8, i.e., p > u, and q=n;

(3) q is a non-integer, then the i (1. Ltoreq.i.ltoreq.w) th correction bit group is associated with the q-int (q) symbol of the i× (int (q) +1) (1. Ltoreq.i.ltoreq.w) th segment, as shown in (C) of fig. 8, i.e., p > u, and q is a non-integer. Note that int () is a downward rounding.

In general, the proportional configuration of p > u can be applied to communication scenes with moderate requirements on demodulation reliability, ideal channel state conditions or scenes with higher traditional demodulation error rate.

In the embodiment of the invention, the correct correction bit is inserted into the modulated symbol or the correction instruction information is sent, so that the demodulation terminal equipment can correct based on the correction information or the correction instruction information, thereby effectively solving the problem of error propagation caused by demodulation errors in relative modulation and further improving the BER performance of the system and the transmission reliability of the system.

It should be noted that, the step 203 may be performed simultaneously with the step 202 of transmitting the modulation symbol after relatively modulating the N segment bits to the demodulation end device, or may be performed after the step 202.

Optionally, the modulation method provided in the embodiment of the present application further includes step 204 described below.

Step 204, the modulation end device sends indication information to the demodulation end device.

In this embodiment of the present application, the indication information is used to instruct the demodulation end device to demodulate the modulation symbol after the relative modulation. The indication information includes at least one of the following:

The manner or type of relative modulation;

modulation order or a power of the modulation order;

the number of bits modulated per segment bit or the number of symbols modulated per segment bit;

the number of segments of bits to be modulated;

each segmented bit is relatively modulated with the initial symbol used.

It should be noted that, if the transmission is based on the above (1 a), the indication information may carry an initial symbol used for relative modulation every K bits or N segment bits, that is, an initial symbol used for relative modulation every segment bit

It should be noted that, the step 204 may be performed simultaneously with the step 202 of transmitting the modulation symbol after relatively modulating the N segment bits to the demodulation end device, or may be performed after the step 202.

Optionally, in the embodiment of the present application, the modulation end device may send the modulated symbol (i.e. the modulated symbol with respect to the N segmented bits) and the correction information (or the correction bits) to the demodulation end device, so that the demodulation end device performs segmented demodulation, and corrects the bits obtained after demodulation.

In the embodiment of the present application, the modulation end device sends the indication information for demodulating the relative modulation to the demodulation end device, so that the demodulation end device can accurately demodulate the modulation symbol after the relative modulation according to the indication information.

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 end device is taken as an example, and a modulation apparatus provided in the embodiment of the present application is described.

An embodiment of the present application provides a demodulation method, and fig. 9 shows a flowchart of the demodulation method provided in the embodiment of the present application. As shown in fig. 9, the demodulation method provided in the embodiment of the present application may include the following steps 301 and 302.

Step 301, the demodulation end device receives a relative modulation symbol sent by the modulation end device.

In this embodiment of the present application, the relative modulation symbol is a modulation symbol obtained by relatively modulating N segmented bits by a modulation end device, where the N segmented bits are obtained by segmenting a bit to be modulated by the modulation end device, and N is a positive integer.

Optionally, in this embodiment of the present application, each segment bit of the N segment bits includes K bits, where K is a positive integer. For any segmented bit in each segmented bit, the modulation symbols of the any segmented bit include u modulation symbols, where the u modulation symbols are m modulation symbols or m+1 modulation symbols, and m is a positive integer.

It should be noted that, for the relevant schemes of the N segment bits in step 301 and step 302, reference may be made to the description of the modulation method in the above embodiment, which is not repeated here.

Step 302, the demodulation end device performs segment demodulation on the relative modulation symbol according to the first information.

In an embodiment of the present application, the first information includes any one of the following:

It is understood that the demodulation end device may perform segment demodulation on the relative modulation symbols according to the second configuration information only. Alternatively, the demodulation end device may perform segment demodulation on the relative modulation symbol only according to the demodulation instruction information. Or the demodulation terminal equipment can perform segmented demodulation on the relative modulation symbol according to the second configuration information and the demodulation instruction information, wherein the information in the second configuration information and the demodulation instruction information together form complete demodulation information.

Optionally, in an embodiment of the present application, the second configuration information includes at least one of:

the manner or type of relative modulation;

modulation order 2 ^L Or the power of the modulation order, L;

the number of segments N of bits to be modulated;

the number of transmitted symbols in each segment bit, u=m or u=m+1;

initial symbol for use in relative modulation of each segment bit

The manner in which the correction information is transmitted.

It should be noted that, if the transmission is based on the above (1 a), the second configuration information may carry an initial symbol used for relative modulation every K bits or N segment bits, that is, an initial symbol used for relative modulation every segment bit

Optionally, in an embodiment of the present application, the parameter information of demodulation relative modulation formed by the second configuration information and the demodulation instruction information includes at least one of the following:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

the number of bits modulated per segment bit or the number of symbols modulated per segment bit.

Optionally, in an embodiment of the present application, the second configuration information is determined by the first device according to at least one of the following:

preconfigured or predefined.

Optionally, in an embodiment of the present application, the second configuration information is carried by the first device through at least one of the following: RRC signaling, MAC-CE signaling, layer 1 (L1) signaling.

It should be noted that, regarding the related schemes of the first device, the capability information, the channel state information, and the like, reference may be made to the description of the modulation method in the foregoing embodiment, which is not repeated herein.

The embodiment of the application provides a demodulation method, where a demodulation end device may perform segment demodulation on a relative modulation symbol (i.e., a modulation symbol after N segment bits are relatively modulated) according to first information, where the first information includes second configuration information and/or demodulation indication information. In the scheme, the demodulation end equipment can carry out segmented demodulation on the received relative modulation symbols, and the relative modulation symbols are modulation symbols after N segmented bits are subjected to relative modulation, so that the demodulation end equipment can accurately carry out demodulation on the modulation symbols, the problem of error propagation caused by demodulation errors in relative modulation is effectively solved, and the overall modulation and demodulation performance of the system and the transmission reliability of the system are improved.

In this embodiment of the present application, the demodulation end device may receive the relative modulation symbol and the correction information (or the correction bit) sent by the modulation end device, so as to perform the segment demodulation processing. The method for performing the segmented demodulation processing on the demodulation terminal device is described below through a specific implementation manner.

Alternatively, in the embodiment of the present application, the above step 302 may be specifically implemented by the following step 302a or step 302 b.

In step 302a, in the case where the relative modulation symbols are transmitted according to m modulation symbols included in each segment bit, the demodulation end device demodulates, according to the first information, the initial symbols used for the relative modulation based on each segment bit and the m modulation symbols in each segment bit.

It can be understood that the demodulation end device may relatively demodulate the modulation symbol in each segment bit, and if the received modulation symbol is transmitted according to the above (1 a), the demodulation end device may directly demodulate u=m+1 symbols in each segment bit according to the second configuration information, to obtain k=m×l bits.

In step 302b, in the case that the relative modulation symbol is transmitted according to m+1 modulation symbols included in each segment bit, the demodulation end device demodulates m symbols except for the first symbol in each segment bit according to the first information.

It will be appreciated that the demodulation side device can relatively demodulate the modulation symbols in each segment bit, and if the received modulation symbols are transmitted in the manner (1 b) above, the demodulation side device can relatively modulate the initial symbols used based on each K bits in the second configuration informationDemodulation is performed with u=m symbols in each segment bit to obtain k=m×l bits.

Optionally, the demodulation method provided in the embodiment of the present application further includes the following step 303.

Step 303, the demodulation end device receives the correction information sent by the modulation end device.

Wherein each correction bit group comprises L check bits, L is the power of the modulation order, and q and L are both positive integers.

a symbol interval or symbol period for inserting correction bits;

It should be noted that, the step 303 may be performed simultaneously with the step 301, or may be performed after the step 301.

It should be noted that, regarding the relevant schemes of the correction information, the first manner, the second manner, and the like, reference may be made to the description of the modulation method in the foregoing embodiment, and the description is not repeated here.

Alternatively, in the embodiment of the present application, the above step 302 may be specifically implemented by the following step 302c or step 302 d.

In step 302c, when the relative modulation symbol is transmitted according to the first mode, the demodulation end device divides the relative modulation symbol and the M symbols into N segmented modulation symbols according to the first information, and relatively demodulates each segmented modulation symbol.

In this embodiment of the present application, the M symbols are determined by the number of N segment bits, the number of modulation symbols of each segment bit, and the symbol interval in which the correction bits are inserted. Each of the N segmented modulation symbols includes u modulation symbols, u being the number of modulation symbols of each segmented bit; m and u are positive integers.

It will be appreciated that if the received modulation symbols are transmitted in the first manner described above, the demodulation side device may combine the received nxu modulation symbols with the first information The correction bit groups are equally divided into N segments (i.e., N segmented modulation symbols), each segment containing u modulation symbols.

In step 302d, in the case that the relative modulation symbol is transmitted according to the second manner, the demodulation end device divides the relative modulation symbol into N segmented modulation symbols according to the first information, and performs relative demodulation on each segmented modulation symbol.

In this embodiment of the present application, each of the N segmented modulation symbols includes u modulation symbols, where u is the number of modulation symbols of each segmented bit; u is a positive integer.

It will be appreciated that if the received modulation symbols are transmitted according to the second manner described above, the demodulation end device may divide the received nxu modulation symbols equally into N segments (i.e., N segmented modulation symbols) according to the first information, each segment containing u modulation symbols.

Optionally, the demodulation method provided in the embodiment of the present application further includes step 304 described below.

Step 304, the demodulation end device corrects X bits in the T demodulated bits.

In this embodiment of the present application, the T bits are bits of a symbol obtained by demodulating a relative modulation symbol, T is an integer greater than 1, and X is a positive integer less than or equal to T.

Wherein the X bits are determined according to any one of: correction bit groups carried in relative modulation symbols, received correction information and error bits.

It will be appreciated that the demodulation side device may demodulate N x K bits (i.e., T bits)The correction is made with several bits (i.e., X bits), there may be three cases:

carried by relative modulation symbolsCorrecting the correction bit groups;

correcting through the received correction information;

for the bit of correction error, the bit of correction correct and the demodulation bit information of the correction bit are indicated to be error from the last correction, and other processing is performed.

It should be noted that, the step 304 may be performed after the step 302.

In the embodiment of the invention, the demodulation terminal equipment can correct X bits in T bits obtained by demodulation, and effectively solves the problem of error propagation caused by demodulation errors in relative modulation, thereby improving the BER performance of the system and the transmission reliability of the system.

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

The embodiment of the application provides a method 10, and fig. 10 shows a flowchart of a modulation and demodulation method provided by the embodiment of the application. As shown in fig. 10, the modulation and demodulation method provided in the embodiment of the present application may include the following steps 401 to 404.

Step 401, the modulation end device segments the bits to be modulated according to the first configuration information to obtain N segment bits.

Step 402, the modulation end device carries out relative modulation on each segmented bit by adopting an initial symbol respectively to obtain a modulation symbol of each segmented bit, and sends the modulation symbol after relative modulation on N segmented bits to the demodulation end device.

Step 403, the demodulation end device receives the relative modulation symbol sent by the modulation end device.

Step 404, the demodulation end device performs segment demodulation on the relative modulation symbol according to the first information.

It should be noted that, the interaction process of the modulation method of the modulation end device and the demodulation method of the demodulation end device is illustrated herein, and for the specific description of steps 401 to 404, reference may be made to the description in the foregoing embodiments, which is not repeated herein.

Fig. 11 shows a schematic diagram of a possible structure of a modulation apparatus according to an embodiment of the present application, where the modulation apparatus is applied to a modulation end device. As shown in fig. 11, the modulation device 70 may include: a segmentation module 71, a modulation module 72 and a transmission module 73.

The segmentation module 71 is configured to segment the bits to be modulated according to first configuration information, so as to obtain N segmented bits, where the first configuration information is used to indicate a modulation parameter of the bits to be modulated, and N is a positive integer. The modulating module 72 is configured to relatively modulate each segment bit obtained by the segmenting module 71 with an initial symbol, so as to obtain a modulation symbol of each segment bit. A transmitting module 73, configured to transmit the modulation symbols obtained by modulating the N segmented bits obtained by the modulating module 72 to a demodulation end device.

The embodiment of the application provides a modulation device, which can relatively modulate an input bit to be modulated in a segmented manner, and each segment is relatively modulated based on a new initial symbol, so that the problem of error propagation caused by the relative modulation by adopting the same initial reference symbol can be effectively avoided, and the overall modulation and demodulation performance of a system and the transmission reliability of the system are improved.

In one possible implementation manner, the first configuration information includes at least one of the following:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

The number of segments of bits to be modulated;

the number of transmitted symbols in each segment bit;

initial symbols used for relative modulation of each segment bit;

the manner in which the correction information is transmitted.

In one possible implementation, each of the N segment bits includes K bits, where K is a positive integer. For any segmented bit in each segmented bit, the modulation symbols of the any segmented bit comprise u modulation symbols, wherein the u modulation symbols are m modulation symbols or m+1 modulation symbols, and u and m are positive integers; the m modulation symbols are symbols obtained by relatively modulating K bits of the arbitrary segmentation bits and an initial symbol; the first modulation symbol of the m+1 modulation symbols is an initial symbol, and the remaining modulation symbols of the m+1 modulation symbols are symbols obtained by relatively modulating the K bits of the arbitrary segment bit and the initial symbol.

In a possible implementation manner, the sending module 73 is further configured to send, according to the first configuration information, correction information to the demodulation end device, where the correction information is used by the demodulation end device to correct an error bit in the demodulated bits.

In one possible implementation manner, the manner in which the modulation end device sends the correction information includes any one of the following:

In one possible implementation manner, the manner in which the modulation end device sends the correction information is the first manner. The correction bits inserted in the modulated modulation symbols of each segment bit are q correction bit groups, and the q correction bit groups respectively correspond to q symbols in the modulated modulation symbols of each segment bit; alternatively, the modulated modulation symbols of the modulated N segment bits have a correction bit set every q segment bits of the modulation symbols. Each correction bit group comprises L check bits, L is the power of the modulation order, q is a positive number, and L is a positive integer.

In one possible implementation manner, the manner in which the modulation end device sends the correction information is the second manner. The correction information includes at least one of: a symbol interval or symbol period for inserting correction bits; the M symbols in the modulation symbols of the N segmented bits have correction bit groups, the M symbols are determined by the number of the N segmented bits, the modulation symbol number of each segmented bit and the symbol interval of the inserted correction bits, and M is a positive integer.

In a possible implementation manner, the sending module 73 is further configured to send indication information to the demodulation end device, where the indication information is used to instruct the demodulation end device to demodulate the modulated symbol after the relative modulation; wherein the indication information includes at least one of:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

the number of segments of bits to be modulated;

each segmented bit is relatively modulated with the initial symbol used.

In one possible implementation manner, the first configuration information is determined by the first device according to at least one of the following:

preconfigured or predefined.

In one possible implementation manner, the first configuration information is carried by the first device through at least one of the following: RRC signaling, MAC-CE signaling, layer 1 signaling.

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

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

Fig. 12 shows a schematic diagram of a possible configuration of a demodulation apparatus according to an embodiment of the present application, where the demodulation apparatus is applied to a demodulation end device. As shown in fig. 12, the demodulation apparatus 80 may include: the receiving module 81 and the demodulating module 82.

The receiving module 81 is configured to receive a relative modulation symbol sent by a modulation end device, where the relative modulation symbol is a modulation symbol obtained by relatively modulating N segmented bits by the modulation end device, where the N segmented bits are obtained by segmenting a bit to be modulated by the modulation end device, and N is a positive integer. The demodulation module 82 is configured to perform segment demodulation on the relative modulation symbol received by the reception module 81 according to the first information. Wherein the first information includes any one of:

The embodiment of the application provides a demodulation device, which can demodulate a received relative modulation symbol in a segmented manner, and the relative modulation symbol is a modulation symbol after N segmented bits are relatively modulated, so that the demodulation device can accurately demodulate the modulation symbol, thereby effectively solving the problem of error propagation caused by demodulation errors in relative modulation, and improving the overall modulation and demodulation performance of a system and the transmission reliability of the system.

In one possible implementation manner, the second configuration information includes at least one of the following:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

the number of segments of bits to be modulated;

The number of transmitted symbols in each segment bit;

initial symbols used for relative modulation of each segment bit;

the manner in which the correction information is transmitted.

In a possible implementation manner, the receiving module 81 is further configured to receive correction information sent by the modulation end device, where the correction information is used by the demodulation end device to correct an error bit in the demodulated bits.

In one possible implementation manner, the manner in which the modulation end device sends the correction information is the first manner. The correction bits inserted in the modulated modulation symbols of each segment bit are q correction bit groups, and the q correction bit groups respectively correspond to q symbols in the modulated modulation symbols of each segment bit; alternatively, the modulated modulation symbols of the modulated N segment bits have a correction bit set every q segment bits of the modulation symbols. Wherein each correction bit group comprises L check bits, L is the power of the modulation order, and q and L are both positive integers.

In one possible implementation, the demodulation module 82 is specifically configured to any one of the following:

in the case that the relative modulation symbol is transmitted according to the first mode, dividing the relative modulation symbol and the M symbols into N segmented modulation symbols according to the first information, and carrying out relative demodulation on each segmented modulation symbol;

in the case that the relative modulation symbols are transmitted according to the second mode, dividing the relative modulation symbols into N segmented modulation symbols according to the first information, and carrying out relative demodulation on each segmented modulation symbol;

wherein, M symbols are determined by the number of N segment bits, the number of modulation symbols of each segment bit and the symbol interval of inserting correction bits; each segmented modulation symbol comprises u modulation symbols, u being the number of modulation symbols for each segmented bit; m and u are positive integers.

In one possible implementation, each of the N segment bits includes K bits, where K is a positive integer. For any segmented bit in each segmented bit, the modulation symbols of the any segmented bit include u modulation symbols, where the u modulation symbols are m modulation symbols or m+1 modulation symbols, and m is a positive integer. The m modulation symbols are symbols obtained by relatively modulating K bits of the arbitrary segmentation bits and an initial symbol; the first modulation symbol of the m+1 modulation symbols is an initial symbol, and the remaining modulation symbols of the m+1 modulation symbols are symbols obtained by relatively modulating the K bits of the arbitrary segment bit and the initial symbol.

in the case where the relative modulation symbols are transmitted in such a manner that m modulation symbols are included in each segment bit, demodulation is performed based on the initial symbols used for the relative modulation of each segment bit and the m modulation symbols in each segment bit according to the first information;

in the case where the relative modulation symbols are transmitted in such a way that m+1 modulation symbols are included in each segment bit, m symbols other than the first symbol in each segment bit are demodulated according to the first information.

In one possible implementation manner, the parameter information of demodulation relative modulation formed by the second configuration information and the demodulation indication information includes at least one of the following:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

In one possible implementation manner, the demodulation device 80 provided in the embodiment of the present application may further include: and a correction module. The correction module is used for correcting X bits in T bits obtained by demodulation, wherein the T bits are bits of a symbol obtained by demodulating a relative modulation symbol, T is an integer greater than 1, and X is a positive integer less than or equal to T. Wherein the X bits are determined according to any one of: correction bit groups carried in relative modulation symbols, received correction information and error bits.

In one possible implementation manner, the second configuration information is determined by the first device according to at least one of the following:

preconfigured or predefined.

In one possible implementation manner, the second configuration information is carried by the first device through at least one of the following: RRC signaling, MAC-CE signaling, layer 1 signaling.

The demodulation device provided in the embodiment of the present application can implement each process implemented by the demodulation end device in the embodiment of the method, and achieve the same technical effect, so that repetition is avoided, and no further description is provided here.

Optionally, as shown in fig. 13, the embodiment of the present application further provides a communication device 5000, including a processor 5001 and a memory 5002, where a program or an instruction capable of running on the processor 5001 is stored in the memory 5002, for example, when the communication device 5000 is a modulation end device, the program or the instruction is executed by the processor 5001 to implement each step of the method embodiment on the modulation end device side, and the same technical effects can be achieved, so that repetition is avoided and redundant description is omitted herein. When the communication device 5000 is a demodulation end device, the program or the instruction implements the steps of the demodulation end device side method embodiment when executed by the processor 5001, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

In this embodiment of the present application, the modulation end device may be UE; the demodulation end device may be UE. The hardware configuration of the UE is illustrated in the following embodiments.

The embodiment of the application also provides the UE, which comprises a processor and a communication interface, wherein the processor is used for segmenting the bits to be modulated according to first configuration information to obtain N segmented bits, the first configuration information is used for indicating the modulation parameters of the bits to be modulated, and N is a positive integer; and respectively adopting an initial symbol to carry out relative modulation on each segmented bit to obtain a modulation symbol of each segmented bit. The communication interface is used for sending the modulation symbols which are modulated by the N segmented bits relatively to the demodulation end equipment. The UE embodiment corresponds to the method embodiment on the modulation end device side, and each implementation process and implementation manner of the method embodiment are applicable to the UE embodiment and can achieve the same technical effects.

The embodiment of the application also provides the UE, which comprises a processor and a communication interface, wherein the communication interface is used for receiving the relative modulation symbols sent by the modulation terminal equipment, the relative modulation symbols are modulation symbols obtained by relatively modulating N segmented bits by the modulation terminal equipment, the N segmented bits are obtained by segmenting the bits to be modulated by the modulation terminal equipment, and N is a positive integer. The processor is used for carrying out segmented demodulation on the relative modulation symbols according to the first information; wherein the first information includes any one of: the second configuration information is used for indicating modulation parameters corresponding to the relative modulation symbols; demodulation instruction information for instructing demodulation parameters of the relative modulation symbols; the second configuration information and the demodulation instruction information together form parameter information of demodulation relative modulation. The UE embodiment corresponds to the method embodiment at the demodulation end device side, and each implementation process and implementation manner of the method embodiment are applicable to the UE embodiment and can achieve the same technical effects.

Specifically, fig. 14 is a schematic hardware structure of a UE implementing an embodiment of the present application.

The UE 7000 includes, but is not limited to: at least some of the components of the radio frequency unit 7001, the network module 7002, the audio output unit 7003, the input unit 7004, the sensor 7005, the display unit 7006, the user input unit 7007, the interface unit 7008, the memory 7009, the processor 7010, and the like.

Those skilled in the art will appreciate that the UE 7000 may further include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 7010 by a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The UE structure shown in fig. 14 does not constitute a limitation of the UE, and the UE may include more or less components than illustrated, or may combine certain components, or may be arranged in different components, which are not described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 7004 may include a graphics processing unit (Graphics Processing Unit, GPU) 70041 and a microphone 70042, with the graphics processor 70041 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 7006 may include a display panel 70061, and the display panel 70061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 7007 includes at least one of a touch panel 70071 and other input devices 70072. The touch panel 70071 is also referred to as a touch screen. The touch panel 70071 may include two parts, a touch detection device and a touch controller. Other input devices 70072 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 downlink data from the network side device, the radio frequency unit 7001 may transmit the downlink data to the processor 7010 for processing; in addition, the radio frequency unit 7001 may send uplink data to the network side device. In general, radio frequency units 7001 include, but are not limited to, antennas, amplifiers, transceivers, couplers, low noise amplifiers, diplexers, and the like.

The memory 7009 may be used to store software programs or instructions and various data. The memory 7009 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 7009 may include volatile memory or nonvolatile memory, or the memory 7009 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 7009 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 7010 may include one or more processing units; the processor 7010 optionally integrates an application processor that primarily handles operations involving an operating system, user interfaces, applications, etc., and a modem processor that primarily handles 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 7010.

The processor 7010 is configured to segment the bits to be modulated according to first configuration information, so as to obtain N segment bits, where the first configuration information is used to indicate modulation parameters of the bits to be modulated, and N is a positive integer; and respectively adopting an initial symbol to carry out relative modulation on each segmented bit to obtain a modulation symbol of each segmented bit.

And the radio frequency unit 7001 is used for sending the modulation symbols which are modulated by the N segmented bits relatively to the demodulation end equipment.

The embodiment of the application provides a UE, which can perform segmented relative modulation on input bits to be modulated, and each segment performs relative modulation based on a new initial symbol, so that the problem of error propagation caused by adopting the same initial reference symbol to perform relative modulation can be effectively avoided, and the overall modulation and demodulation performance of the system and the transmission reliability of the system are improved.

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

Or, the radio frequency unit 7001 is configured to receive a relative modulation symbol sent by the modulation end device, where the relative modulation symbol is a modulation symbol obtained by relatively modulating N segmented bits by the modulation end device, where the N segmented bits are obtained by segmenting a bit to be modulated by the modulation end device, and N is a positive integer.

A processor 7010, configured to perform segment demodulation on the relative modulation symbols according to the first information; wherein the first information includes any one of:

The embodiment of the application provides a UE, which can demodulate a received relative modulation symbol in a segmented manner, wherein the relative modulation symbol is a modulation symbol after N segmented bits are relatively modulated, so that the UE can accurately demodulate the modulation symbol, thereby effectively solving the problem of error propagation caused by demodulation errors in relative modulation and improving the overall modulation and demodulation performance of a system and the transmission reliability of the system.

The UE provided in the embodiment of the present application can implement each process implemented by the demodulation end device in the embodiment of the method, and achieve the same technical effect, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a network side device, which comprises a processor and a communication interface, wherein the network side device embodiment corresponds to the method embodiment of the modulation end device and the demodulation end device, and each implementation process and implementation mode of the method embodiment can be applied to the network side device embodiment and can achieve the same technical effect.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing modulation method or the demodulation method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is provided herein.

Wherein the processor is a processor in the communication device 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 method embodiment, and achieving the same technical effect, so as to avoid repetition, and not repeated here.

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 method embodiments, and achieve the same technical effects, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a communication system, which comprises: a modulation-side device operable to perform the steps of the modulation method as described above, and a demodulation-side device operable to perform the steps of the demodulation method as described above.

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, applied to a modulation end device, comprising:

segmenting bits to be modulated according to first configuration information to obtain N segmented bits, wherein the first configuration information is used for indicating modulation parameters of the bits to be modulated, and N is a positive integer;

and respectively adopting an initial symbol to carry out relative modulation on each segmented bit to obtain a modulation symbol of each segmented bit, and sending the modulation symbols subjected to relative modulation on the N segmented bits to demodulation end equipment.

2. The method of claim 1, wherein the first configuration information comprises at least one of:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

the number of segments of the bits to be modulated;

the number of transmitted symbols in each segment bit;

initial symbols used for relative modulation of each segment bit;

the manner in which the correction information is transmitted.

3. The method of claim 1, wherein each segment bit comprises K bits, K being a positive integer;

for any segmented bit in each segmented bit, the modulation symbols of the any segmented bit comprise u modulation symbols, the u modulation symbols are m modulation symbols or m+1 modulation symbols, and u and m are positive integers;

4. A method according to any one of claims 1 to 3, further comprising:

and transmitting correction information to the demodulation end equipment according to the first configuration information, wherein the correction information is used for correcting error bits in bits obtained by demodulation by the demodulation end equipment.

5. The method according to claim 4, wherein the manner in which the modulation side device transmits the correction information includes any one of:

a first mode: inserting correction bits into the modulated modulation symbols of the N segmentation bits at intervals of p symbols, wherein p is an integer greater than 1;

the second mode is as follows: and directly transmitting the correction information to the demodulation end equipment without inserting correction bits into the modulated modulation symbols of the N segmentation bits.

6. The method according to claim 5, wherein the manner in which the modulation side device transmits the correction information is the first manner;

a correction bit group is arranged in each modulation symbol of q segmentation bits in each interval in the modulated modulation symbols of the N segmentation bits;

7. The method according to claim 5, wherein the manner in which the modulation side device transmits the correction information is the second manner;

the correction information includes at least one of:

a symbol interval or symbol period for inserting correction bits;

the M symbols in the modulation symbols of the N segmented bits are provided with correction bit groups, the M symbols are determined by the number of the N segmented bits, the modulation symbol number of each segmented bit and the symbol interval of the inserted correction bits, and M is a positive integer.

8. The method according to claim 1, wherein the method further comprises:

Transmitting indication information to the demodulation end equipment, wherein the indication information is used for indicating the demodulation end equipment to demodulate a modulation symbol after relative modulation;

wherein the indication information includes at least one of:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

the number of segments of bits to be modulated;

each segmented bit is relatively modulated with the initial symbol used.

9. The method of claim 1, wherein the first configuration information is determined by the first device based on at least one of:

preconfigured or predefined.

10. The method of claim 1 or 9, wherein the first configuration information is carried by the first device by at least one of: radio resource control, RRC, signaling, medium access control, control end-member, MAC-CE, signaling, layer 1 signaling.

11. A demodulation method, applied to a demodulation-side device, comprising:

Receiving a relative modulation symbol sent by modulation terminal equipment, wherein the relative modulation symbol is a modulation symbol obtained by relatively modulating N segmented bits by the modulation terminal equipment, the N segmented bits are obtained by segmenting bits to be modulated by the modulation terminal equipment, and N is a positive integer;

according to the first information, carrying out segmented demodulation on the relative modulation symbols;

wherein the first information includes any one of:

the second configuration information is used for indicating the modulation parameters corresponding to the relative modulation symbols;

demodulation indication information, wherein the demodulation indication information is used for indicating demodulation parameters of the relative modulation symbols;

and the second configuration information and the demodulation indication information jointly form parameter information of demodulation relative modulation.

12. The method of claim 11, wherein the second configuration information comprises at least one of:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

the number of segments of the bits to be modulated;

The number of transmitted symbols in each segment bit;

initial symbols used for relative modulation of each segment bit;

the manner in which the correction information is transmitted.

13. The method of claim 11, wherein the method further comprises:

and receiving correction information sent by the modulation end equipment, wherein the correction information is used for correcting error bits in bits obtained by demodulation by the demodulation end equipment.

14. The method according to claim 13, wherein the manner in which the modulation side device transmits the correction information includes any one of:

15. The method according to claim 14, wherein the manner in which the modulation side device transmits the correction information is the first manner;

16. The method according to claim 14, wherein the manner in which the modulation side device transmits the correction information is the second manner;

the correction information includes at least one of:

a symbol interval or symbol period for inserting correction bits;

17. The method according to any of claims 14 to 16, wherein said step of performing a segmented demodulation of said relative modulation symbols based on first information comprises any of:

in the case that the relative modulation symbol is transmitted according to the first mode, dividing the relative modulation symbol and the M symbols into N segmented modulation symbols according to the first information, and relatively demodulating each segmented modulation symbol;

In the case that the relative modulation symbol is transmitted according to the second mode, dividing the relative modulation symbol into N segment modulation symbols according to the first information, and relatively demodulating each segment modulation symbol;

wherein the M symbols are determined by the number of the N segmented bits, the number of modulation symbols of each segmented bit and a symbol interval in which correction bits are inserted; each segmented modulation symbol comprises u modulation symbols, u being the number of modulation symbols for each segmented bit; m and u are positive integers.

18. The method of claim 11, wherein each segment bit comprises K bits, K being a positive integer;

for any segmented bit in each segmented bit, the modulation symbols of the any segmented bit comprise u modulation symbols, wherein the u modulation symbols are m modulation symbols or m+1 modulation symbols, and m is a positive integer;

19. The method of claim 18, wherein the performing the segmented demodulation of the relative modulation symbols based on the first information comprises any one of:

demodulating, in a case where the relative modulation symbol is transmitted in such a manner that m modulation symbols are included in each segment bit, an initial symbol used for relative modulation based on each segment bit and m modulation symbols in each segment bit according to the first information;

20. The method of claim 11, wherein the parameter information of the demodulation relative modulation formed by the second configuration information and the demodulation indication information includes at least one of:

the manner or type of relative modulation;

modulation order or a power of the modulation order;

21. The method of claim 11, wherein the method further comprises:

Correcting X bits in T bits obtained by demodulation, wherein the T bits are bits of a symbol obtained by demodulating the relative modulation symbol, T is an integer greater than 1, and X is a positive integer less than or equal to T;

wherein the X bits are determined according to any one of: and the correction bit group, the received correction information and the error bit carried in the relative modulation symbol.

22. The method of claim 11, wherein the second configuration information is determined by the first device based on at least one of:

preconfigured or predefined.

23. The method of claim 11 or 22, wherein the second configuration information is carried by the first device by at least one of: radio resource control, RRC, signaling, medium access control, control end-member, MAC-CE, signaling, layer 1 signaling.

24. A modulation apparatus, applied to a modulation end device, comprising: the device comprises a segmentation module, a modulation module and a sending module;

the segmentation module is used for segmenting the bits to be modulated according to first configuration information to obtain N segmented bits, wherein the first configuration information is used for indicating modulation parameters of the bits to be modulated, and N is a positive integer;

The modulation module is used for carrying out relative modulation on each segmented bit obtained by the segmentation module by adopting an initial symbol respectively to obtain a modulation symbol of each segmented bit;

the sending module is configured to send, to a demodulation end device, the modulation symbols obtained by the modulating module and after the N segmented bits are modulated relatively.

25. A demodulation apparatus, applied to a demodulation-side device, comprising: a receiving module and a demodulating module;

the receiving module is configured to receive a relative modulation symbol sent by a modulation end device, where the relative modulation symbol is a modulation symbol obtained by relatively modulating N segmented bits by the modulation end device, where the N segmented bits are obtained by segmenting a bit to be modulated by the modulation end device, and N is a positive integer;

the demodulation module is used for carrying out segmented demodulation on the relative modulation symbols received by the receiving module according to the first information;

wherein the first information includes any one of:

26. A modulation end device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the modulation method according to any one of claims 1 to 10.

27. A demodulation-side device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the demodulation method according to any one of claims 11 to 23.

28. A communication system comprising the modulation device of claim 24 and the demodulation device of claim 25; or,

the communication system comprises a modulation-side device according to claim 26 and a demodulation-side device according to claim 27.

29. 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 10 or the steps of the demodulation method according to any one of claims 11 to 23.