WO2024067598A1 - 调制、解调方法、装置、设备、系统及存储介质 - Google Patents

调制、解调方法、装置、设备、系统及存储介质 Download PDF

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Publication number
WO2024067598A1
WO2024067598A1 PCT/CN2023/121603 CN2023121603W WO2024067598A1 WO 2024067598 A1 WO2024067598 A1 WO 2024067598A1 CN 2023121603 W CN2023121603 W CN 2023121603W WO 2024067598 A1 WO2024067598 A1 WO 2024067598A1
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modulation
bits
demodulation
symbol
bit
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PCT/CN2023/121603
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English (en)
French (fr)
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黄伟
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维沃移动通信有限公司
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Publication of WO2024067598A1 publication Critical patent/WO2024067598A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a modulation and demodulation method, device, equipment, system and storage medium.
  • Signal modulation is the process of converting the transmitted analog signal or digital information into a signal suitable for channel transmission.
  • Digital baseband signals usually have abundant low-frequency energy, and digital baseband signals can be used to modulate the carrier so that the transmitted signal matches the characteristics of the wireless channel.
  • high-order modulation can be used to achieve the goal.
  • the Euclidean distance of the constellation points in the Euclidean space decreases, so the probability of judgment errors increases.
  • the demodulator needs to determine the reference constellation point based on the pilot signal sent by the transmitter, otherwise poor demodulation performance will occur, which requires the transmitter to send a pilot reference signal that can carry all constellation points.
  • relative modulation based on polarity change can complete information demodulation without tracking carrier phase and estimating channel parameters.
  • the demodulation device only needs to perform polarity judgment with the reference symbol to complete signal demodulation, thereby reducing the complexity of the transmitter and receiver.
  • the problem with this relative modulation based on polarity change is that it is necessary to set an initial reference symbol or initial reference waveform, and subsequent modulation symbols are modulated based on this initial symbol.
  • the demodulation of each symbol needs to rely on the correct demodulation of the initial reference symbol, otherwise it will cause error propagation problems in demodulation, thereby causing the overall demodulation performance of the system to deteriorate. Therefore, how to avoid the error propagation problem in relative modulation is an urgent problem to be solved.
  • the embodiments of the present application provide a modulation and demodulation method, apparatus, device, system and storage medium, which can solve the problem of how to avoid error propagation in relative modulation.
  • a modulation method is provided, which is applied to a modulation end device.
  • the modulation method includes: according to first configuration information, segmenting the bits to be modulated to obtain N segmented bits, and the first configuration information is used to indicate the modulation parameters of the bits to be modulated, and N is a positive integer; relatively modulating each segmented bit using an initial symbol to obtain a modulation symbol for each segmented bit, and sending the modulation symbols after relative modulation of the N segmented bits to the demodulation end device.
  • a modulation device which is applied to a modulation end device, and the modulation device includes: a segmentation module, a modulation module and a sending module.
  • the segmentation module is used to segment the bits to be modulated according to the first configuration information to obtain N segmented bits, and the first configuration information is used to indicate the modulation parameters of the bits to be modulated, and N is a positive integer.
  • the modulation module is used to relatively modulate each segmented bit obtained by the segmentation module using an initial symbol to obtain a modulation symbol for each segmented bit.
  • the sending module is used to send the modulation symbols obtained by relative modulation of the N segmented bits obtained by the modulation module to the demodulation end device.
  • a demodulation method which is applied to a demodulation end device, the method comprising: receiving a relative modulation symbol sent by a modulation end device, the relative modulation symbol being a modulation symbol after the modulation end device relatively modulates N segmented bits, the N segmented bits being obtained by the modulation end device segmenting the bits to be modulated, and N being a positive integer; performing segmented demodulation on the relative modulation symbol according to first information; wherein the first information comprises any one of the following:
  • the second configuration information is used to indicate a modulation parameter corresponding to a relative modulation symbol
  • Demodulation indication information where the demodulation indication information is used to indicate a demodulation parameter relative to a modulation symbol
  • a demodulation device which is applied to a demodulation end device, and the demodulation device includes: a receiving module and a demodulation module.
  • the receiving module is used to receive a relative modulation symbol sent by a modulation end device, where the relative modulation symbol is a modulation symbol after the modulation end device relatively modulates N segmented bits, where the N segmented bits are obtained by the modulation end device segmenting the bits to be modulated, and N is a positive integer.
  • the demodulation module is used to segmentally demodulate the relative modulation symbol received by the receiving module according to the first information.
  • the first information includes any one of the following:
  • the second configuration information is used to indicate a modulation parameter corresponding to a relative modulation symbol
  • Demodulation indication information where the demodulation indication information is used to indicate a demodulation parameter relative to a modulation symbol
  • a modulation terminal device which communication device includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.
  • a modulation end device including a processor and a communication interface, wherein the processor is used to segment the bits to be modulated according to first configuration information to obtain N segmented bits, the first configuration information is used to indicate the modulation parameters of the bits to be modulated, and N is a positive integer; each segmented bit is relatively modulated using an initial symbol to obtain a modulation symbol of each segmented bit.
  • the communication interface is used to send the modulation symbol after the relative modulation of the N segmented bits to the demodulation end device.
  • a demodulation terminal device which communication device includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the third aspect are implemented.
  • a demodulation end device comprising a processor and a communication interface, wherein the communication interface is used to receive a signal sent by the modulation end device.
  • the relative modulation symbol sent is a modulation symbol after the modulation end device relatively modulates N segmented bits, and the N segmented bits are obtained by the modulation end device after segmenting the bits to be modulated, and N is a positive integer.
  • the processor is used to segmentally demodulate the relative modulation symbol according to the first information; wherein the first information includes any one of the following:
  • the second configuration information is used to indicate a modulation parameter corresponding to a relative modulation symbol
  • Demodulation indication information where the demodulation indication information is used to indicate a demodulation parameter relative to a modulation symbol
  • a communication system comprising: a modulation end device and a demodulation end device, wherein the modulation end device can be used to execute the steps of the modulation method as described in the first aspect, and the demodulation end device can be used to execute the steps of the demodulation method as described in the third aspect.
  • a readable storage medium on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the third aspect are implemented.
  • a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the third aspect.
  • a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the 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.
  • the modulation end device can segment the bits to be modulated according to the first configuration information to obtain N segmented bits, and use an initial symbol to relatively modulate each segmented bit to obtain a modulation symbol for each segmented bit, and send the modulation symbol after the relative modulation of the N segmented bits to the demodulation end device.
  • the modulation end device can relatively modulate the input bits to be modulated by segmenting, and each segment is relatively modulated based on a new initial symbol, it can effectively avoid the error propagation problem caused by relative modulation using the same initial reference symbol, thereby improving the overall modulation and demodulation performance of the system and the transmission reliability of the system.
  • FIG1 is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of a frame structure of a modulation signal provided by the related art
  • FIG3 is a schematic diagram of a baseband signal waveform provided by the related art
  • FIG4 is a flow chart of a modulation method provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of segmented relative modulation symbols of a modulation terminal device provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of a method for carrying correction bits provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of a ratio design of modulation symbols and correction bits provided in an embodiment of the present application.
  • FIG8 is a second schematic diagram of a ratio design of modulation symbols and correction bits provided in an embodiment of the present application.
  • FIG9 is a flow chart of a demodulation method provided in an embodiment of the present application.
  • FIG10 is a flow chart of a modulation and demodulation method provided in an embodiment of the present application.
  • FIG11 is a schematic structural diagram of a modulation device provided in an embodiment of the present application.
  • FIG12 is a schematic diagram of the structure of a demodulation device provided in an embodiment of the present application.
  • FIG13 is a schematic diagram of the hardware structure of a communication device provided in an embodiment of the present application.
  • FIG14 is a schematic diagram of the hardware structure of a UE provided in an embodiment of the present application.
  • first, second, etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by “first” and “second” are generally of the same type, and the number of objects is not limited.
  • the first object can be one or more.
  • “and/or” in the specification and claims represents at least one of the connected objects, and the character “/" generally represents that the objects associated with each other are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR new radio
  • FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.
  • the wireless communication system includes UE11 and a network side device 12.
  • UE11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) equipment, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture
  • the terminal side devices 12 include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklace
  • the network side device 12 may include an access network device or a core network device, wherein the access network device 12 may also be referred to as a wireless access network device, a wireless access network (Radio Access Network, RAN), a wireless access network function or a wireless access network unit.
  • the access network device 12 may include a base station, a WLAN access point or a WiFi node, etc.
  • the base station 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 B node, a home evolved B node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field.
  • the base station is not limited to specific technical vocabulary.
  • the core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local N
  • Signal modulation is the key to the communication system, which can transform the transmitted analog signal or digital information into a signal suitable for channel transmission.
  • Digital baseband signals often have abundant low-frequency energy, so the carrier (including amplitude, phase, frequency and other dimensions) must be modulated with a digital baseband signal to match the characteristics of the wireless channel.
  • the carrier including amplitude, phase, frequency and other dimensions
  • high-order modulation is one of the effective ways to improve spectrum efficiency.
  • modulation can be divided into single-dimensional modulation and two-dimensional modulation according to the difference in modulation dimension.
  • Typical single-dimensional modulation includes: binary amplitude shift keying (ASK), binary frequency shift keying (FSK), binary phase shift keying (PSK) modulation, etc.; while two-dimensional modulation includes quadrature amplitude modulation (QAM), amplitude phase shift keying (APSK) and other modulations.
  • ASK binary amplitude shift keying
  • FSK binary frequency shift keying
  • PSK binary phase shift keying
  • two-dimensional modulation includes quadrature amplitude modulation (QAM), amplitude phase shift keying (APSK) and other modulations.
  • QAM quadrature amplitude modulation
  • APSK amplitude phase shift keying
  • Relative modulation based on polarity changes can complete information demodulation without tracking carrier phase and estimating channel parameters.
  • the demodulation device only needs to perform a simple polarity judgment with the reference symbol to complete signal demodulation, thereby reducing the complexity of the transmitter and receiver. Therefore, this modulation method has strong transmission reliability against signal interference and channel attenuation.
  • the problem with this relative modulation based on polarity changes is that an initial reference symbol or initial reference waveform needs to be set, and subsequent modulation symbols are modulated based on this initial symbol.
  • the demodulation of each symbol needs to rely on the correct demodulation of the initial reference symbol, otherwise it will cause error propagation problems in demodulation, resulting in deterioration of the overall demodulation performance of the system.
  • the correlation value or polarity change of the difference between adjacent time slots in the baseband signal and the correlation value or polarity change of the difference between reference time slot blocks can be used to jointly carry bit information, so that the demodulation end only needs to perform a simple polarity judgment with the reference time slot block to complete signal demodulation.
  • the baseband signals of the P time slots of Information slots in each basic time slot block satisfy: the level of the first slot of Information slots is opposite to the level of the last slot of Reference slots.
  • the information bits are represented by the correlation values of the differences between adjacent slots within the Information slots.
  • the demodulator After the demodulator is synchronized, it finds the start of each Reference slot or basic time slot block and demodulates according to the following rules:
  • the radio frequency source sends K (K is a positive integer) repeated basic time slot blocks for noise smoothing, then the K repeated basic time slot blocks can be used for noise smoothing;
  • the baseband signals of the P time slots of the Information slots in each basic time slot block satisfy the following waveform property, that is, the level of the first slot of the Information slots is opposite to the level of the last slot of the Reference slots.
  • the information bit is represented by the product of the polarity change from the 4th slot to the 3rd slot and the polarity change from the 2nd slot to the 1st slot.
  • the baseband signals of the P time slots of the Information slots in each basic time slot block satisfy the following waveform property, that is, the level of the first slot of the Information slots is opposite to the level of the last slot of the Reference slots.
  • the information bit is represented by the product of the polarity change from the third slot to the fourth slot and the polarity change from the second slot to the first slot.
  • the baseband signals of the M time slots of the Reference slots in each basic time slot block are:
  • the baseband signals of the P time slots of the Information slots in each basic time slot block satisfy: the level of the first time slot of the Information slots is opposite to the level of the last slot of the Reference slots.
  • the product of the polarity change from the 4th slot to the 3rd slot and the polarity change from the 2nd slot to the 1st slot is used to represent the information bit.
  • the baseband signals of the P time slots of the Information slots in each basic time slot block satisfy: the level of the first time slot of the Information slots is opposite to the level of the last slot of the Reference slots.
  • the product of the polarity change from the 3rd slot to the 4th slot and the polarity change from the 2nd slot to the 1st slot is used to represent the information bit.
  • ⁇ 2 ⁇ n ⁇ N+ ⁇ 1 -1, mod(m,4) 0, M ⁇ m ⁇ M+P.
  • modulation can be divided into one-dimensional modulation and two-dimensional modulation according to the difference in modulation dimension.
  • Typical one-dimensional modulation includes ASK, FSK, PSK modulation, etc.
  • two-dimensional modulation includes QAM, APSK and other modulation.
  • Both one-dimensional modulation and two-dimensional modulation can improve the utilization of frequency band based on high-order modulation, but the problem is that as the modulation order increases, the Euclidean distance of the constellation points in the Euclidean space decreases, so the probability of judgment error increases.
  • the demodulation end needs to determine the reference constellation point based on the pilot signal sent by the transmitter, otherwise the demodulation performance will be poor, which requires the transmitter to send a pilot reference signal that can carry all constellation points. Therefore, the traditional way of improving spectrum efficiency based on high-order modulation has high requirements on system overhead, power consumption and implementation complexity.
  • Relative modulation based on polarity changes can complete information demodulation without tracking carrier phase and estimating channel parameters.
  • the demodulation device only needs to perform polarity judgment with the reference symbol to complete signal demodulation, thereby reducing the complexity of the transmitter and receiver.
  • this relative modulation has strong transmission reliability against signal interference and channel attenuation.
  • the problem with this relative modulation based on polarity changes is that an initial reference symbol or initial reference waveform needs to be set, and subsequent modulation symbols are modulated based on the initial symbol.
  • the demodulation of each symbol needs to rely on the correct demodulation of the initial reference symbol, otherwise it will cause error propagation problems in demodulation, thereby causing the overall demodulation performance of the system to deteriorate. Therefore, how to solve the error propagation problem in relative modulation based on the same initial reference symbol is a prerequisite for ensuring the reliability of the communication system. At present, there is still a lack of effective ways to solve such problems.
  • the modulation end device can segment the bits to be modulated according to the first configuration information to obtain N segmented bits, and use an initial symbol to relatively modulate each segmented bit to obtain a modulation symbol for each segmented bit, and send the modulation symbol after the relative modulation of the N segmented bits to the demodulation end device.
  • the modulation end device can relatively modulate the input bits to be modulated by segmenting, and each segment is relatively modulated based on a new initial symbol, it can effectively avoid the error propagation problem caused by relative modulation using the same initial reference symbol, thereby improving the overall modulation and demodulation performance of the system and the transmission reliability of the system.
  • the present application embodiment provides a modulation method
  • Figure 4 shows a flow chart of a modulation method provided by the present application embodiment.
  • the modulation method provided by the present application embodiment 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 segmented bits.
  • the first configuration information is used to indicate a modulation parameter of the bit to be modulated, and N is a positive integer.
  • K, L, m and u are all positive integers.
  • the first configuration information includes at least one of the following:
  • Each segment bit is modulated relative to the initial symbol used 1 ⁇ n ⁇ N;
  • the method for sending correction information is a method for sending correction information.
  • each segment bit is modulated using an initial symbol, or each segment bit is modulated based on the modulation result of the previous segment bit during modulation.
  • the above-mentioned relative modulation mode or type includes at least one of the following: amplitude-based modulation mode (ASK), frequency shift-based modulation mode (FSK), phase shift-based modulation mode (PSK), quadrature amplitude modulation-based modulation mode (QAM), amplitude-phase-based modulation mode (APSK), etc.
  • ASK amplitude-based modulation mode
  • FSK frequency shift-based modulation mode
  • PSK phase shift-based modulation mode
  • QAM quadrature amplitude modulation-based modulation mode
  • APSK amplitude-phase-based modulation mode
  • the above-mentioned first configuration information can carry the initial symbol used for relative modulation of each K bits or N segmented bits, that is, the initial symbol used for relative modulation of each segmented bit 1 ⁇ n ⁇ N.
  • the first configuration information is determined by the first device according to at least one of the following:
  • the above-mentioned first device may be a system end device or a second device
  • the second device may be a transmitting end device (modulation end device), a receiving end device (demodulation end device) or a third-party network device node.
  • the modulation end device may be a user equipment (User Equipment, UE), and the demodulation end device may be a UE.
  • UE User Equipment
  • the first device may send first configuration information to the modulation end device/demodulation end device.
  • the first device may send second configuration information to the modulation end device/demodulation end device.
  • the transmitting device/receiving device and the system device report their own UE capability information through the first signaling (UE Capability Enquiry-UE Capability Information).
  • the transmitting device/receiving device and the system device report their own UE capability information through the second signaling (UE Assistance Information).
  • UE Assistance Information UE Assistance Information
  • the sending device/receiving device and the system device actively report their UE capability information through an initial value message (Initial UE message).
  • the transmitting device/receiving device and the system device can determine the first configuration information based on historical status information, that is, channel status information recorded when the device was previously resident; or, the transmitting device/receiving device and the system device can determine the first configuration information based on real-time status information, such as information status information obtained by estimation or other means.
  • the above-mentioned first configuration information is carried by the first device through at least one of the following: radio resource control (Radio Resource Control, RRC) signaling, media access control-control element (Media Access Control-Control Element, MAC-CE) signaling, and layer 1 (L1) signaling.
  • RRC Radio Resource Control
  • MAC-CE Media Access Control-Control Element
  • L1 layer 1
  • each of the N segmented bits includes K bits, where K is a positive integer.
  • the modulation symbol of the arbitrary segmented bit includes u modulation symbols, where u modulation symbols are m modulation symbols or m+1 modulation symbols, and both u and m are positive integers.
  • the m modulation symbols are symbols obtained by relative modulation of the K bits of the arbitrary segmented bits and the initial symbol; the first modulation symbol among the m+1 modulation symbols is the initial symbol, and the remaining modulation symbols among the m+1 modulation symbols are symbols obtained by relative modulation of the K bits of the arbitrary segmented bits and the initial symbol.
  • Step 202 The modulation end device relatively modulates each segment bit using an initial symbol to obtain a modulation symbol for each segment bit, and sends the modulation symbols obtained by relatively modulating N segment bits to the demodulation end device.
  • the modulation end device can, according to the first configuration information, convert each segment bit into an initial symbol Relative modulation is performed to generate u modulation symbols for each segment bit.
  • each segmented bit is relatively modulated using an initial symbol, that is, N segmented bits are relatively modulated using N initial symbols, and the N initial symbols are not exactly the same or completely different, it is possible to effectively avoid the error propagation problem caused by using the same initial reference symbol for relative modulation.
  • the initial symbol (also referred to as the initial reference symbol) used by each segmented bit is configured by the first configuration information, or is autonomously determined by the modulation end device but the indication information of the initial symbol is sent to the first device.
  • FIG5 a schematic diagram of the modulation end device segmenting relative modulation symbols is shown.
  • the modulation end device can segment the input bits to be modulated (i.e., the above-mentioned bits to be modulated) to obtain multiple segmented bits, and each segmented bit modulation uses a new initial reference symbol (1 ⁇ n ⁇ N). Each segment bit of the modulation symbol may or may not carry the initial reference symbol.
  • (1 ⁇ n ⁇ N), (A) and (B) in Figure 5 respectively give two examples of modulation symbol segmentation design, where (A) in Figure 5 is a modulation symbol carrying an initial reference symbol, and (B) in Figure 5 is a modulation symbol not carrying an initial reference symbol.
  • the demodulation end device can perform segment demodulation on the relative modulation symbol.
  • the specific implementation method can be referred to the description of the following embodiment, which will not be repeated here.
  • the embodiment of the present application provides a modulation method, in which the modulation end device can segment the bits to be modulated according to the first configuration information to obtain N segmented bits, and relatively modulate each segmented bit using an initial symbol to obtain a modulation symbol for each segmented bit, and send the modulation symbol after the relative modulation of the N segmented bits to the demodulation end device.
  • the modulation end device can relatively modulate the input bits to be modulated by segmenting, and each segment is relatively modulated based on a new initial symbol, it can effectively avoid the error propagation problem caused by relative modulation using the same initial reference symbol, thereby improving the overall modulation and demodulation performance of the system and the transmission reliability of the system.
  • the modulation method provided in the embodiment of the present application also 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.
  • the correction information is used by the demodulation end device to correct the erroneous bits in the demodulated bits.
  • the modulation end device sends the correction information in any of the following ways:
  • the first method inserting a correction bit every p symbols in the modulation symbol of the modulated N segment bits, where p is an integer greater than 1;
  • the second method do not insert the correction bit into the modulation symbol of the modulated N segment bits, and directly send the correction information to the demodulation end device.
  • the correction bit inserted every p symbols is the demodulation bit of the modulation symbol most adjacent to it.
  • the correction bits inserted into the modulation symbol of each segment bit that has been modulated are q correction bit groups, and the q correction bit groups correspond to q symbols in the modulation symbol of each segment bit respectively; or,
  • Each correction bit group includes L check bits, L is the power of the modulation order, q is a positive number, and L is a positive integer.
  • each correction bit group has L bits.
  • p q ⁇ u, that is, every q ⁇ u symbols have 1 symbol with a corresponding correction bit group, and each correction bit group has L bits.
  • the correction information includes at least one of the following:
  • M symbols among the modulation symbols of N segment bits have correction bit groups, and 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 for inserting the correction bits, and M is a positive integer.
  • the correction information includes a symbol interval or symbol period p for inserting correction bits, p ⁇ 2, that is, there is a correction bit group every p symbols; and/or the correction information includes the correction bits corresponding to N ⁇ u modulation symbols.
  • correction bits that is, a total of Each symbol (ie, M symbols) has a corresponding correction bit group, and each correction bit group has L correction bits.
  • a correction bit group is carried in the modulated modulation symbol, and a correction bit group corresponding to a symbol is inserted every p modulation symbols.
  • the correction bit is the correct demodulated bit corresponding to the group and the pth modulation symbol closest to it, as shown in (A) in FIG6 , that is, the modulation symbol and the correction bit are sent uniformly.
  • the modulation symbol and the correction bit information are sent separately, and the correction bit information carries all the correction bit information of N segments, and the i-th segment is the correct demodulated bit corresponding to the p-th modulation symbol closest to it.
  • the correction bit group and the i-th The p-th symbol in the modulation symbols with p symbols is associated, which is the correct demodulated bit, as shown in (B) in Figure 6, that is, the modulation symbol and the correction bit are sent independently.
  • FIG7 a schematic diagram of the ratio design of modulation symbols and correction bits is shown.
  • p ⁇ u which also means that there are u modulation symbols in each segment bit. symbols have corresponding correction bits.
  • (1) q is a positive integer, then the i-th (1 ⁇ i ⁇ q) correction bit group is associated with the p-th symbol of the i-th (1 ⁇ i ⁇ q) sub-segment, as shown in (A) of FIG7 , i.e., p ⁇ u and is an integer;
  • the i-th (1 ⁇ i ⁇ q-1) correction bit group is associated with the p-th symbol of the i-th (1 ⁇ i ⁇ q-1) subsegment
  • the q-th correction bit group is associated with the (u-(q-1)p)-th symbol of the q-th subsegment of length (u-(q-1)p), as shown in (D) of FIG. 7, i.e., p ⁇ u and If it is a non-integer, it is associated with the segment.
  • the ratio configuration of p ⁇ u can be applied to communication scenarios with high requirements for demodulation reliability, or less than ideal channel conditions, or scenarios where the traditional demodulation bit error rate is too high.
  • each bit group is L bits long. In this case, there are three possible cases:
  • the i-th (1 ⁇ i ⁇ w) correction bit group is associated with the q-int(q)-th symbol of the i ⁇ (int(q)+1)(1 ⁇ i ⁇ w)-th segment, as shown in (C) of FIG8 , i.e., p>u, and q is a non-integer. It should be noted that int() is rounded down.
  • the ratio configuration of p>u can be applied to communication scenarios with moderate requirements for demodulation reliability, relatively ideal channel conditions, or scenarios with relatively high traditional demodulation bit error rate.
  • inserting correct correction bits into the modulated symbols or sending correction indication information can enable the demodulation end device to perform correction based on the correction information or correction indication information, effectively solving the error propagation problem caused by demodulation errors in relative modulation, thereby improving the system's BER performance and the system's transmission reliability.
  • step 203 can be executed simultaneously with the above step 202 of "sending the modulation symbols after relative modulation of N segmented bits to the demodulation end device", or can also be executed after the above step 202.
  • the modulation method provided in the embodiment of the present application also includes the following step 204.
  • Step 204 The modulation end device sends instruction information to the demodulation end device.
  • the above-mentioned indication information is used to instruct the demodulation end device to demodulate the modulation symbol after relative modulation.
  • the above-mentioned indication information includes at least one of the following:
  • Modulation order or power of modulation order
  • Each segment bit is modulated relative to the initial symbol used.
  • the above indication information can carry the initial symbol used for relative modulation of each K bits or N segmented bits, that is, the initial symbol used for relative modulation of each segmented bit
  • step 204 can be executed simultaneously with the above step 202 of "sending the modulation symbols after relative modulation of the N segmented bits to the demodulation end device", or can also be executed after the above step 202.
  • the modulation end device can send the modulated symbols (i.e., the modulation symbols after the N segmented bits are modulated) and correction information (or correction bits) to the demodulation end device, so that the demodulation end device can perform segmented demodulation and correct the bits obtained after demodulation.
  • the modulation end device sends indication information of demodulating relative modulation to the demodulation end device, so that the demodulation end device can accurately demodulate the modulation symbols after relative modulation according to the indication information.
  • the modulation method provided in the embodiment of the present application can be performed by a modulation device.
  • a modulation end device performing the modulation method is taken as an example to illustrate the modulation device provided in the embodiment of the present application.
  • the present application embodiment provides a demodulation method
  • Figure 9 shows a flowchart of a demodulation method provided by the present application embodiment.
  • the demodulation method provided by the present application embodiment may include the following steps 301 and 302.
  • Step 301 The demodulation end device receives the relative modulation symbol sent by the modulation end device.
  • the above-mentioned relative modulation symbol is a modulation symbol after the modulation end device relatively modulates N segmented bits, and the N segmented bits are obtained after the modulation end device segments the bits to be modulated, and N is a positive integer.
  • each of the N segmented bits includes K bits, where K is a positive integer.
  • the modulation symbol of the arbitrary segmented bit includes u modulation symbols, where u modulation symbols are m modulation symbols or m+1 modulation symbols, where m is a positive integer.
  • the m modulation symbols are symbols obtained by relative modulation of the K bits of the arbitrary segmented bits and the initial symbol; the first modulation symbol among the m+1 modulation symbols is the initial symbol, and the remaining modulation symbols among the m+1 modulation symbols are symbols obtained by relative modulation of the K bits of the arbitrary segmented bits and the initial symbol.
  • Step 302 The demodulation end device demodulates the relative modulation symbols in segments according to the first information.
  • the first information includes any one of the following:
  • the second configuration information is used to indicate a modulation parameter corresponding to a relative modulation symbol
  • Demodulation indication information where the demodulation indication information is used to indicate a demodulation parameter relative to a modulation symbol
  • the demodulation end device can perform segmented demodulation on the relative modulation symbol only according to the second configuration information.
  • the demodulation end device can perform segmented demodulation on the relative modulation symbol only according to the demodulation indication information.
  • the demodulation end device can perform segmented demodulation on the relative modulation symbol according to the second configuration information and the demodulation indication information, where the information in the second configuration information and the demodulation indication information together constitute complete demodulation information.
  • the second configuration information includes at least one of the following:
  • Each segment bit is modulated relative to the initial symbol used 0 ⁇ n ⁇ N-1;
  • the method for sending correction information is a method for sending correction information.
  • the above second configuration information can carry the initial symbol used for relative modulation of each K bits or N segmented bits, that is, the initial symbol used for relative modulation of each segmented bit 0 ⁇ n ⁇ N-1.
  • the demodulation parameter information formed by the second configuration information and the demodulation indication information includes at least one of the following:
  • Modulation order or power of modulation order
  • the second configuration information is determined by the first device according to at least one of the following:
  • the second configuration information is carried by the first device through at least one of the following: RRC signaling, MAC-CE signaling, and layer 1 (L1) signaling.
  • the embodiment of the present application provides a demodulation method, and the demodulation end device can demodulate the relative modulation symbol (i.e., the modulation symbol after the relative modulation of N segmented bits) in segments according to the first information, and the first information includes the second configuration information and/or the demodulation indication information.
  • the demodulation end device can demodulate the received relative modulation symbol in segments, and the relative modulation symbol is the modulation symbol after the relative modulation of N segmented bits, so the demodulation end device can accurately unpack the modulation symbol, thereby effectively solving the error propagation problem caused by demodulation errors in relative modulation, and improving the overall modulation and demodulation performance of the system and the transmission reliability of the system.
  • the demodulation end device can receive the relative modulation symbol and correction information (or correction bit) sent by the modulation end device to perform segmented demodulation processing.
  • the method for performing segmented demodulation processing by the demodulation end device is described below through a specific implementation method.
  • step 302 can be specifically implemented by the following step 302a or step 302b.
  • Step 302a when the relative modulation symbol is transmitted according to m modulation symbols included in each segmented bit, the demodulation end device demodulates according to the first information, based on the initial symbol used for relative modulation of each segmented bit and the m modulation symbols in each segmented bit.
  • Step 302b When the relative modulation symbol is transmitted according to m+1 modulation symbols included in each segmented bit, the demodulation end device demodulates the m symbols except the first symbol in each segmented bit according to the first information.
  • 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.
  • the correction information is used by the demodulation end device to correct the erroneous bits in the demodulated bits.
  • the modulation end device sends the correction information in any of the following ways:
  • the first method inserting a correction bit every p symbols in the modulation symbol of the modulated N segment bits, where p is an integer greater than 1;
  • the second method do not insert the correction bit into the modulation symbol of the modulated N segment bits, and directly send the correction information to the demodulation end device.
  • the correction bits inserted into the modulation symbol of each segment bit that has been modulated are q correction bit groups, and the q correction bit groups correspond to q symbols in the modulation symbol of each segment bit respectively; or,
  • Each correction bit group includes L check bits, L is the power of the modulation order, and q and L are both positive integers.
  • the correction information includes at least one of the following:
  • M symbols of the modulation symbol of N segment bits have correction bit groups, and the M symbols are composed of the number of N segment bits, the number of each segment bit, and the correction bit group.
  • the number of modulation symbols and the symbol interval for inserting correction bits are determined, and M is a positive integer.
  • step 303 can be performed simultaneously with the above step 301, or can also be performed after the above step 301.
  • inserting correct correction bits into the modulated symbols or sending correction indication information can enable the demodulation end device to perform correction based on the correction information or correction indication information, effectively solving the error propagation problem caused by demodulation errors in relative modulation, thereby improving the system's BER performance and the system's transmission reliability.
  • step 302 can be specifically implemented by the following step 302c or step 302d.
  • Step 302c when the relative modulation symbol is transmitted in the first manner, the demodulation end device divides the relative modulation symbol and the M symbols equally into N segmented modulation symbols according to the first information, and performs relative demodulation on each segmented modulation symbol.
  • the M symbols are determined by the number of N segment bits, the number of modulation symbols for each segment bit, and the symbol interval for inserting correction bits.
  • Each of the N segment modulation symbols includes u modulation symbols, where u is the number of modulation symbols for each segment bit; M and u are both positive integers.
  • the demodulation end device can combine the received N ⁇ u modulation symbols with the first information.
  • Each correction bit group is divided into N segments (ie, N segmented modulation symbols), and each segment contains u modulation symbols.
  • Step 302d When the relative modulation symbol is transmitted in 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.
  • each of the above-mentioned N segmented modulation symbols includes u modulation symbols, where u is the number of modulation symbols for each segment bit; u is a positive integer.
  • the demodulation end device can divide the received N ⁇ u modulation symbols into N segments (i.e., N segmented modulation symbols) according to the first information, and each segment contains u modulation symbols.
  • the demodulation method provided in the embodiment of the present application further includes the following step 304.
  • Step 304 The demodulation end device corrects X bits among the T bits obtained by demodulation.
  • the above-mentioned T bits are the bits of the symbol obtained after demodulating the relative modulation symbol, T is an integer greater than 1, and X is a positive integer less than or equal to T.
  • the X bits are determined according to any one of the following items: a correction bit group carried in a relative modulation symbol, received correction information, and an error bit.
  • the demodulation end device can demodulate N ⁇ K bits (ie, T bits) obtained by bits (i.e. X bits) are corrected, and there are three possible situations:
  • the relative modulation symbol carries Correction bit groups are used for correction
  • step 304 can be performed after the above step 302.
  • the demodulation end device can correct X bits out of the T bits obtained by demodulation, effectively solving the error propagation problem caused by demodulation errors in relative modulation, thereby improving the BER performance of the system and the transmission reliability of the system.
  • the demodulation method provided in the embodiment of the present application may be performed by a demodulation device.
  • a demodulation end device performing the demodulation method is taken as an example to illustrate the demodulation device provided in the embodiment of the present application.
  • the present application embodiment provides a method 10, and Figure 10 shows a flowchart of a modulation and demodulation method provided by the present application embodiment.
  • the modulation and demodulation method provided by the present application embodiment 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 segmented bits.
  • Step 402 The modulation end device relatively modulates each segment bit using an initial symbol to obtain a modulation symbol for each segment bit, and sends the modulation symbol obtained by relatively modulating N segment 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 segmented demodulation on the relative modulation symbols according to the first information.
  • FIG11 is a schematic diagram of a possible structure of a modulation device involved in an embodiment of the present application, and the modulation device is applied to a modulation terminal device.
  • the modulation device 70 may include: a segmentation module 71 , a modulation module 72 and a transmission module 73 .
  • the segmentation module 71 is used to segment the bits to be modulated according to the first configuration information to obtain N segmented bits, where the first configuration information is used to indicate the modulation parameters of the bits to be modulated, and N is a positive integer.
  • the modulation module 72 is used to relatively modulate each segmented bit obtained by the segmentation module 71 using an initial symbol to obtain a modulation symbol for each segmented bit.
  • the sending module 73 is used to send the modulation symbols obtained by relatively modulating the N segmented bits obtained by the modulation module 72 to the demodulation end device.
  • An embodiment of the present application provides a modulation device, which can perform segmented relative modulation on the input bits to be modulated, and each segment is relatively modulated based on a new initial symbol. Therefore, the error propagation problem caused by relative modulation using the same initial reference symbol can be effectively avoided, thereby improving the overall modulation and demodulation performance of the system and the transmission reliability of the system.
  • the first configuration information includes at least one of the following:
  • Modulation order or power of modulation order
  • the method for sending correction information is a method for sending correction information.
  • each of the N segmented bits includes K bits, where K is a positive integer.
  • the modulation symbol of the arbitrary segmented bit includes u modulation symbols, where u modulation symbols are m modulation symbols or m+1 modulation symbols, and u and m are both positive integers; wherein the m modulation symbols are symbols obtained by relative modulation of the K bits of the arbitrary segmented bit and the initial symbol; the first modulation symbol in the m+1 modulation symbols is the initial symbol, and the remaining modulation symbols in the m+1 modulation symbols are symbols obtained by relative modulation of the K bits of the arbitrary segmented bit and the initial symbol.
  • the sending module 73 is further configured to send correction information to the demodulation end device according to the first configuration information, where the correction information is used by the demodulation end device to correct erroneous bits in the demodulated bits.
  • the modulation end device sends the correction information in any of the following ways:
  • the first method inserting a correction bit every p symbols in the modulation symbol of the modulated N segment bits, where p is an integer greater than 1;
  • the second method do not insert the correction bit into the modulation symbol of the modulated N segment bits, and directly send the correction information to the demodulation end device.
  • the modulation end device sends correction information in the first manner.
  • the correction bits inserted into the modulation symbol of each modulated segmented bit are q correction bit groups, and the q correction bit groups correspond to the q symbols in the modulation symbol of each segmented bit; or, there is a correction bit group for each modulation symbol of q segmented bits in the modulation symbol of N modulated segmented bits.
  • Each correction bit group includes L check bits, L is the power of the modulation order, q is a positive number, and L is a positive integer.
  • the modulation end device sends correction information in the second manner.
  • the correction information includes at least one of the following: a symbol interval or symbol period for inserting correction bits; M symbols in the modulation symbol of N segmented bits have correction bit groups, and the M symbols are determined by the number of N segmented bits, the number of modulation symbols of each segmented bit, and the symbol interval for inserting correction bits, and M is a positive integer.
  • the sending module 73 is further used to send indication information to the demodulation end device, where the indication information is used to instruct the demodulation end device to demodulate the modulation symbol after relative modulation; wherein the indication information includes at least one of the following:
  • Modulation order or power of modulation order
  • Each segment bit is modulated relative to the initial symbol used.
  • the first configuration information is determined by the first device according to at least one of the following:
  • the first configuration information is carried by the first device through at least one of the following: RRC signaling, MAC-CE signaling, and 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 above method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the demodulation device in the embodiment of the present application may be a UE, such as a UE with an operating system, or a component in the UE, such as an integrated circuit or a chip.
  • the UE may be a terminal, or may be other devices other than a terminal.
  • the UE may include but is not limited to the types of UE 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
  • FIG12 is a schematic diagram of a possible structure of a demodulation device involved in an embodiment of the present application, and the demodulation device is applied to a demodulation end device.
  • the demodulation device 80 may include: a receiving module 81 and a demodulation module 82 .
  • the receiving module 81 is used to receive the relative modulation symbol sent by the modulation end device, the relative modulation symbol is the modulation symbol after the modulation end device relatively modulates N segmented bits, the N segmented bits are obtained by the modulation end device after segmenting the bits to be modulated, and N is a positive integer.
  • the demodulation module 82 is used to perform segmented demodulation on the relative modulation symbol received by the receiving module 81 according to the first information.
  • the first information includes any one of the following:
  • the second configuration information is used to indicate a modulation parameter corresponding to a relative modulation symbol
  • Demodulation indication information where the demodulation indication information is used to indicate a demodulation parameter relative to a modulation symbol
  • An embodiment of the present application provides a demodulation device, which can demodulate the received relative modulation symbol in segments, and the relative modulation symbol is a modulation symbol after relative modulation of N segmented bits. Therefore, the demodulation device can accurately unblock the modulation symbol, thereby effectively solving the error propagation problem caused by demodulation errors in relative modulation, and improving the overall modulation and demodulation performance of the system and the transmission reliability of the system.
  • the second configuration information includes at least one of the following:
  • Modulation order or power of modulation order
  • the method for sending correction information is a method for sending correction information.
  • the receiving module 81 is further configured to receive correction information sent by the modulation end device, and the correction information is used to decode the The modulating end equipment corrects the error bits among the bits obtained by demodulation.
  • the modulation end device sends the correction information in any of the following ways:
  • the first method inserting a correction bit every p symbols in the modulation symbol of the modulated N segment bits, where p is an integer greater than 1;
  • the second method do not insert the correction bit into the modulation symbol of the modulated N segment bits, and directly send the correction information to the demodulation end device.
  • the modulation end device sends correction information in the first manner.
  • the correction bits inserted into the modulation symbol of each modulated segmented bit are q correction bit groups, and the q correction bit groups correspond to q symbols in the modulation symbol of each segmented bit; or, there is a correction bit group for each modulation symbol of q segmented bits in the modulation symbol of N modulated segmented bits.
  • Each correction bit group includes L check bits, L is the power of the modulation order, and q and L are both positive integers.
  • the modulation end device sends correction information in the second manner.
  • the correction information includes at least one of the following: a symbol interval or symbol period for inserting correction bits; M symbols in the modulation symbol of N segmented bits have correction bit groups, and the M symbols are determined by the number of N segmented bits, the number of modulation symbols of each segmented bit, and the symbol interval for inserting correction bits, and M is a positive integer.
  • the demodulation module 82 is specifically used for any of the following:
  • the relative modulation symbol and the M symbols are equally divided into N segment modulation symbols, and each segment modulation symbol is relatively demodulated;
  • the relative modulation symbol is transmitted in the second manner, according to the first information, the relative modulation symbol is equally divided into N segment modulation symbols, and each segment modulation symbol is relatively demodulated;
  • the M symbols are determined by the number of N segmented bits, the number of modulation symbols for each segmented bit and the symbol interval for inserting correction bits; each segmented modulation symbol includes u modulation symbols, u is the number of modulation symbols for each segmented bit; M and u are both positive integers.
  • each of the N segmented bits includes K bits, where K is a positive integer.
  • the modulation symbol of the arbitrary segmented bit includes u modulation symbols, where u modulation symbols are m modulation symbols or m+1 modulation symbols, where m is a positive integer.
  • the m modulation symbols are symbols obtained by relative modulation of the K bits of the arbitrary segmented bit and the initial symbol; the first modulation symbol in the m+1 modulation symbols is the initial symbol, and the remaining modulation symbols in the m+1 modulation symbols are symbols obtained by relative modulation of the K bits of the arbitrary segmented bit and the initial symbol.
  • the demodulation module 82 is specifically used for any of the following:
  • demodulation is performed based on the initial symbol used for relative modulation of each segment bit and the m modulation symbols in each segment bit according to the first information
  • each segment bit includes m+1 modulation symbols
  • the m symbols except the first symbol in each segment bit are demodulated according to the first information.
  • the demodulation parameter information formed by the second configuration information and the demodulation indication information includes at least one of the following:
  • Modulation order or power of modulation order
  • the demodulation device 80 provided in the embodiment of the present application may further include: a correction module.
  • the correction module is used to correct X bits among the T bits obtained by demodulation, where the T bits are bits of the symbol obtained after demodulating the relative modulation symbol, T is an integer greater than 1, and X is a positive integer less than or equal to T.
  • the X bits are determined according to any one of the following: a correction bit group carried in the relative modulation symbol, received correction information, and an error bit.
  • the second configuration information is determined by the first device according to at least one of the following:
  • the second configuration information is carried by the first device through at least one of the following: RRC signaling, MAC-CE signaling, and 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 above method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the demodulation device in the embodiment of the present application may be a UE, such as a UE with an operating system, or a component in the UE, such as an integrated circuit or a chip.
  • the UE may be a terminal, or may be other devices other than a terminal.
  • the UE may include but is not limited to the types of UE 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
  • an embodiment of the present application further provides a communication device 5000, including a processor 5001 and a memory 5002, wherein the memory 5002 stores a program or instruction that can be run on the processor 5001.
  • the communication device 5000 is a modulation end device
  • the program or instruction is executed by the processor 5001 to implement the various steps of the above-mentioned modulation end device side method embodiment, and can achieve the same technical effect. To avoid repetition, it is not repeated here.
  • the communication device 5000 is a demodulation end device
  • the program or instruction is executed by the processor 5001 to implement the various steps of the above-mentioned demodulation end device side method embodiment, and can achieve the same technical effect. To avoid repetition, it is not repeated here.
  • the modulation end device may be a UE; and the demodulation end device may be a UE.
  • the hardware structure of the UE is illustrated in the following embodiment.
  • the embodiment of the present application also provides a UE, including a processor and a communication interface, the processor is used to segment the bits to be modulated according to the first configuration information to obtain N segmented bits, the first configuration information is used to indicate the modulation parameters of the bits to be modulated, N is a positive integer; each segmented bit is relatively modulated using an initial symbol to obtain a modulation symbol for each segmented bit.
  • the communication interface is used to send the modulation symbols after relative modulation of the N segmented bits to the demodulation end device.
  • This UE embodiment corresponds to the above-mentioned modulation end device side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this UE embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a UE, including a processor and a communication interface, the communication interface is used to receive a relative modulation symbol sent by a modulation end device, the relative modulation symbol is a modulation symbol after the modulation end device relatively modulates N segmented bits, the N segmented bits are obtained by the modulation end device after segmenting the bits to be modulated, and N is a positive integer.
  • the processor is used to segmentally demodulate the relative modulation symbol according to the first information; wherein the first information includes any of the following: second configuration information, the second configuration information is used to indicate the modulation parameters corresponding to the relative modulation symbol; demodulation indication information, the demodulation indication information is used to indicate the demodulation parameters of the relative modulation symbol; second configuration information and demodulation indication information, the second configuration information and demodulation indication information together constitute the parameter information for demodulating relative modulation.
  • This UE embodiment corresponds to the above-mentioned demodulation end device side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this UE embodiment, and can achieve the same technical effect.
  • Figure 14 is a schematic diagram of the hardware structure of a UE implementing an embodiment of the present application.
  • the UE 7000 includes but is not limited to: a radio frequency unit 7001, a network module 7002, an audio output unit 7003, an input unit 7004, a sensor 7005, a display unit 7006, a user input unit 7007, an interface unit 7008, a memory 7009 and at least some of the components of the processor 7010.
  • UE 7000 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to processor 7010 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system.
  • a power source such as a battery
  • the UE structure shown in FIG14 does not constitute a limitation on the UE, and the UE may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
  • the input unit 7004 may include a graphics processing unit (GPU).
  • GPU graphics processing unit
  • the graphics processor 70041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the 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, etc.
  • the user input unit 7007 includes a touch panel 70071 and at least one of other input devices 70072.
  • the touch panel 70071 is also called 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 (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
  • the RF unit 7001 can transmit the data to the processor 7010 for processing; in addition, the RF unit 7001 can send uplink data to the network side device.
  • the RF unit 7001 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • the memory 7009 can be used to store software programs or instructions and various data.
  • the memory 7009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
  • the memory 7009 may include a volatile memory or a non-volatile memory, or the memory 7009 may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
  • the memory 7009 in the embodiment 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; optionally, the processor 7010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 7010.
  • the processor 7010 is used to segment the bits to be modulated according to the first configuration information to obtain N segmented bits, and the first configuration information is used to indicate the modulation parameters of the bits to be modulated, N is a positive integer; each segmented bit is relatively modulated using an initial symbol to obtain a modulation symbol for each segmented bit.
  • the radio frequency unit 7001 is used to send modulation symbols after relative modulation of N segmented bits to the demodulation end device.
  • An embodiment of the present application provides a UE, which can relatively modulate the input bits to be modulated in segments, and each segment is relatively modulated based on a new initial symbol. Therefore, the error propagation problem caused by relative modulation using the same initial reference symbol can be effectively avoided, thereby improving the overall modulation and demodulation performance of the 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 modulation end device in the above method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the RF unit 7001 is used to receive a relative modulation symbol sent by a modulation end device, where the relative modulation symbol is a modulation symbol after the modulation end device relatively modulates N segmented bits, where the N segmented bits are obtained by the modulation end device segmenting the bits to be modulated, and N is a positive integer.
  • the processor 7010 is configured to perform segmented demodulation on the relative modulation symbol according to the first information; wherein the first information includes any one of the following:
  • the second configuration information is used to indicate a modulation parameter corresponding to a relative modulation symbol
  • Demodulation indication information where the demodulation indication information is used to indicate a demodulation parameter relative to a modulation symbol
  • An embodiment of the present application provides a UE, which can demodulate the received relative modulation symbols in segments, and the relative modulation symbols are modulation symbols after relative modulation of N segmented bits. Therefore, the UE can accurately unblock the modulation symbols, thereby effectively solving the error propagation problem caused by demodulation errors in relative modulation, and improving the overall modulation and demodulation performance of the 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 above method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the embodiment of the present application also provides a network side device, including a processor and a communication interface.
  • the network side device embodiment is consistent with the above-mentioned modulation terminal device and Corresponding to the demodulation end device method embodiment, each implementation process and implementation method of the above method embodiment can be applied to the network side device embodiment and can achieve the same technical effect.
  • An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored.
  • the various processes of the above-mentioned modulation method or demodulation method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the processor is the processor in the communication device described in the above embodiment.
  • the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
  • An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • the embodiments of the present application further provide a computer program/program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described here.
  • An embodiment of the present application also provides a communication system, including: a modulation end device and a demodulation end device, wherein the modulation end device can be used to execute the steps of the modulation method described above, and the demodulation end device can be used to execute the steps of the demodulation method described above.
  • the technical solution of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.
  • a storage medium such as ROM/RAM, a magnetic disk, or an optical disk
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本申请公开了一种调制、解调方法、装置、设备、系统及存储介质,属于通信技术领域,本申请实施例的调制方法包括:根据第一配置信息,将待调制比特进行分段,得到N个分段比特,该第一配置信息用于指示待调制比特的调制参数,N为正整数;将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号,并向解调端设备发送对N个分段比特相对调制后的调制符号。

Description

调制、解调方法、装置、设备、系统及存储介质
相关申请的交叉引用
本申请主张在2022年09月29日在中国提交的申请号为202211204771.3的中国专利的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,具体涉及一种调制、解调方法、装置、设备、系统及存储介质。
背景技术
信号调制是将传输的模拟信号或数字信息变成适合信道传输的信号。数字基带信号通常具有丰富的低频能量,可以采用数字基带信号对载波进行调制,以使得传输信号与无线信道的特性相匹配。为了提升通信系统的频带利用率,可以采用高阶调制方式以达到目的。而随着调制阶数的提高,星座点在欧式空间上的欧式距离减少,因此产生判决误差的概率增加。因为为了保证高阶调制的比特误码率(Bit Error Rate,BER)性能,解调端需要根据发送端发送的导频信号来确定参考星座点,否则会发生解调性能差,这就需要发送端发送能够携带所有星座点的导频参考信号。
目前,基于极性变化来实现相对调制,可以在不需要跟踪载波相位和不估计信道参数下完成信息解调,解调设备只需要简单的与参考符号进行极性判断就可以完成信号解调,因而降低了发送端和接收端的复杂度。然而,这种基于极性变化来实现相对调制的问题在于:需要设定一个初始参考符号或初始参考波形,后续的调制符号都是基于该初始符号来进行调制的。在解调制时,每一个符号的解调需要依赖于该初始参考符号的正确解调,否则造成解调中的错误传播问题,从而导致系统整体解调性能恶化。如此,如何避免相对调制中的错误传播问题是亟待解决的问题。
发明内容
本申请实施例提供一种调制、解调方法、装置、设备、系统及存储介质,能够解决如何避免相对调制中的错误传播的问题。
第一方面,提供了一种调制方法,应用于调制端设备,该调制方法包括:根据第一配置信息,将待调制比特进行分段,得到N个分段比特,该第一配置信息用于指示待调制比特的调制参数,N为正整数;将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号,并向解调端设备发送对N个分段比特相对调制后的调制符号。
第二方面,提供了一种调制装置,应用于调制端设备,该调制装置包括:分段模块、调制模块和发送模块。分段模块,用于根据第一配置信息,将待调制比特进行分段,得到N个分段比特,该第一配置信息用于指示待调制比特的调制参数,N为正整数。调制模块,用于将分段模块得到的每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号。发送模块,用于向解调端设备发送对调制模块得到的N个分段比特相对调制后的调制符号。
第三方面,提供了一种解调方法,应用于解调端设备,该方法包括:接收调制端设备发送的相对调制符号,该相对调制符号为调制端设备对N个分段比特相对调制后的调制符号,该N个分段比特由调制端设备将待调制比特进行分段后得到,N为正整数;根据第一信息,对相对调制符号进行分段解调;其中,第一信息包括以下任一项:
第二配置信息,第二配置信息用于指示相对调制符号对应的调制参数;
解调制指示信息,解调制指示信息用于指示相对调制符号的解调参数;
第二配置信息和解调制指示信息,第二配置信息和解调制指示信息共同构成解相对调制的参数信息。
第四方面,提供了一种解调装置,应用于解调端设备,该解调装置包括:接收模块和解调模块。接收模块,用于接收调制端设备发送的相对调制符号,相对调制符号为调制端设备对N个分段比特相对调制后的调制符号,N个分段比特由调制端设备将待调制比特进行分段后得到,N为正整数。解调模块,用于根据第一信息,对接收模块接收的相对调制符号进行分段解调。其中,第一信息包括以下任一项:
第二配置信息,第二配置信息用于指示相对调制符号对应的调制参数;
解调制指示信息,解调制指示信息用于指示相对调制符号的解调参数;
第二配置信息和解调制指示信息,第二配置信息和解调制指示信息共同构成解相对调制的参数信息。
第五方面,提供了一种调制端设备,该通信设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种调制端设备,包括处理器及通信接口,其中,所述处理器用于根据第一配置信息,将待调制比特进行分段,得到N个分段比特,该第一配置信息用于指示待调制比特的调制参数,N为正整数;将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号。所述通信接口用于向解调端设备发送对N个分段比特相对调制后的调制符号。
第七方面,提供了一种解调端设备,该通信设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第三方面所述的方法的步骤。
第八方面,提供了一种解调端设备,包括处理器及通信接口,其中,所述通信接口用于接收调制端设备发 送的相对调制符号,该相对调制符号为调制端设备对N个分段比特相对调制后的调制符号,该N个分段比特由调制端设备将待调制比特进行分段后得到,N为正整数。所述处理器用于根据第一信息,对相对调制符号进行分段解调;其中,第一信息包括以下任一项:
第二配置信息,第二配置信息用于指示相对调制符号对应的调制参数;
解调制指示信息,解调制指示信息用于指示相对调制符号的解调参数;
第二配置信息和解调制指示信息,第二配置信息和解调制指示信息共同构成解相对调制的参数信息。
第九方面,提供了一种通信系统,包括:调制端设备和解调端设备,所述调制端设备可用于执行如第一方面所述的调制方法的步骤,所述解调端设备可用于执行如第三方面所述的解调方法的步骤。
第十方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤。
第十一方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法,或实现如第三方面所述的方法。
第十二方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的调制方法的步骤,或者实现如第三方面所述的解调方法的步骤。
在本申请实施例中,调制端设备可以根据第一配置信息,将待调制比特进行分段,得到N个分段比特,并将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号,并向解调端设备发送对所述N个分段比特相对调制后的调制符号。本方案中,由于调制端设备可以通过将输入的待调制比特进行分段相对调制,且每段都基于新的初始符号进行相对调制,因此可以有效地避免因采用相同的初始参考符号进行相对调制导致的错误传播问题,如此提升了系统整体的调制解调性能和系统的传输可靠性。
附图说明
图1是本申请实施例提供的一种无线通信系统的架构示意图;
图2是相关技术提供的调制信号的帧结构的示意图;
图3是相关技术提供的基带信号波形的示意图;
图4是本申请实施例提供的一种调制方法的流程图;
图5是本申请实施例提供的一种调制端设备分段相对调制符号的示意图;
图6是本申请实施例提供的一种校正比特的携带方式的示意图;
图7是本申请实施例提供的一种调制符号与校正比特的比例设计的示意图之一;
图8是本申请实施例提供的一种调制符号与校正比特的比例设计的示意图之二;
图9是本申请实施例提供的一种解调方法的流程图;
图10是本申请实施例提供的一种调制及解调方法的流程图;
图11是本申请实施例提供的一种调制装置的结构示意图;
图12是本申请实施例提供的一种解调装置的结构示意图;
图13是本申请实施例提供的一种通信设备的硬件结构示意图;
图14是本申请实施例提供的一种UE的硬件结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括UE11和网络侧设备12。其中,UE11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(VUE)、行人终端(PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具 等)、游戏机、个人计算机(personal computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定UE11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备12也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备12可以包括基站、WLAN接入点或WiFi节点等,基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例进行介绍,并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项:核心网节点、核心网功能、移动管理实体(Mobility Management Entity,MME)、接入移动管理功能(Access and Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)、用户平面功能(User Plane Function,UPF)、策略控制功能(Policy Control Function,PCF)、策略与计费规则功能单元(Policy and Charging Rules Function,PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function,EASDF)、统一数据管理(Unified Data Management,UDM),统一数据仓储(Unified Data Repository,UDR)、归属用户服务器(Home Subscriber Server,HSS)、集中式网络配置(Centralized network configuration,CNC)、网络存储功能(Network Repository Function,NRF),网络开放功能(Network Exposure Function,NEF)、本地NEF(Local NEF,或L-NEF)、绑定支持功能(Binding Support Function,BSF)、应用功能(Application Function,AF)等。需要说明的是,在本申请实施例中仅以NR系统中的核心网设备为例进行介绍,并不限定核心网设备的具体类型。
下面对本申请实施例提供的一种调制、解调方法、装置、设备、系统及存储介质中涉及的一些概念和/或术语做一下解释说明。
信号调制是通信系统的关键,可以将传输的模拟信号或数字信息变成适合信道传输的信号。数字基带信号往往具有丰富的低频能量,因此必须用数字基带信号对载波(包括幅度、相位、频率等维度)进行调制,以使得传输信号与无线信道的特性相匹配。另外,如何提高通信系统的频带利用率一直是通信领域关注的重点,高阶调制是提升频谱效率有效方式之一。传统的按照调制在调制维度上的区别可以分为单维调制和二维调制,其中典型的单维调制包括:二进制振幅键控(ASK)、二进制频移键控(FSK)、二进制相移键控(PSK)调制等;而二维调制则有正交调幅(QAM)、幅相键控(APSK)等调制。单维调制和二维调制都可以基于高阶调制来提高频带利用率,但带来的问题是随着调制阶数的提高,星座点在欧式空间上的欧式距离减少,因此产生判决误差的概率增加。因为为了保证高阶调制的BER性能,不仅要求系统工作在高信噪比(Signal-to-Noise Ratio,SNR)场景,并且解调端需要根据发送端发送的导频信号来确定参考星座点,否则会发生解调性能差,这就需要发送端发送能够携带所有星座点的导频参考信号。因此传统基于高阶调制来提高频谱效率的方式对系统开销、功耗和实现复杂度都有较高的要求。
基于极性变化来实现相对调制可以在不需要跟踪载波相位和不估计信道参数下完成信息解调,解调设备只需要简单的与参考符号进行极性判断就可以完成信号解调,因而降低了发送端和接收端的复杂度。因此,这种调制方式对信号干扰、信道衰减具有很强的传输可靠性。但这种基于极性变化来实现相对调制的问题在于:需要设定一个初始参考符号或初始参考波形,后续的调制符号都是基于该初始符号来进行调制的。解调制的时候,每一个符号的解调需要依赖于该初始参考符号的正确解调,否则造成解调中的错误传播问题,从而导致系统整体解调性能恶化。
为了降低解调端的解调复杂度,可以利用基带信号中相邻时隙间差值的相关值或极性变化与参考时隙块间差值的相关值或极性变化来联合携带比特信息,使得解调端只需要通过简单的与参考时隙块进行极性判断就可以完成信号解调。相应的原理如下:
一、调制端
发送按照如下规则进行信号调制的调制信号。如图2所示,示出了调制信号的帧结构的示意图。以信息时隙(Information slots)中P=4为例(可以扩展到其它长度P),调制信号b(t)满足如下性质:
(a)以参考信号时隙(Reference slots)内相邻时隙(slot)的之间差值的相关值为参考比特的相关值,或是以Reference slots内相邻slots以及Information slots中第1个slot的之间差值的相关值为参考比特的相关值;
(I)当M=2时,用第2个slot到第1个slot的极性变化与第2个slot到Information slots的第1个slot的极性变化的乘积表示参考信息比特B=1;而用Information slots的第1个slot到第2个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示参考信息比特B=0。
(II)当M=3时,用第2个slot到第1个slot的极性变化与第2个slot到第3个slot的极性变化的乘积表示参考信息比特B=1;而用第3个slot到第2个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示参考信息比特B=0。
(III)当M=3时,或者用第2个slot到第1个slot的极性变化与第3个slot到Information slots的第1个slot的极性变化的乘积表示参考信息比特B=1;而用Information slots的第1个slot到第3个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示参考信息比特B=0。
(IV)当M=4时,用第4个slot到第3个slot的极性变化与2个slot到第1个slot的极性变化的乘积表示参考信号B=1,而用第3个slot到第4个slot的极性变化与2个slot到第1个slot的极性变化的乘积表示参考信号B=0。
(V)当M=4时,用第3个slot到第4个slot的极性变化与2个slot到第1个slot的极性变化的乘积表示参考信号B=1,而用第4个slot到第3个slot的极性变化与2个slot到第1个slot的极性变化的乘积表示参考 信号B=0。
(b)若使用了Information slots中第1个slot作为参考比特相关值的计算slot或广义的Reference slots,则每个基本时隙块中Information slots的P个时隙的基带信号满足:Information slots的第1个slot的电平与Reference slots的最后1个slot的电平是相反的。
(c)以Information slots内相邻slot之间差值的相关值表示信息比特。
(I)当M=2,3,4时,用第4个slot到第3个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示信息比特;
(II)当M=2,3,4时,或者用第3个slot到第4个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示信息比特;
二、解调端
解调端进行同步之后,找到每个Reference slots或基本时隙块的起始处,按照如下规则进行解调:
(a)先根据M个Reference slots的参考信息时隙,按照信号调制的规则构建出表征信息比特B=1和B=0的相邻slot相对值的相关值,分别记为
(b)依次解调P×Q个Information slots中Q个的数据信息比特,以P个Information slots为一个基本单元解调出对应的数据信息比特;
(I)按照信号调制的规则构建出Information slots中相邻slot相对值的相关值,分别记为Cinf
(II)利用构建出的Information slots中相对值的相关值Cinf与Reference slots中构建出的表征信息比特B=1和B=0的两个相对值的相关值进行相关处理;
(III)可选的,如果射频源发送K(K为正整数)个重复的基本时隙块用于进行噪声平滑,那么可以利用这K个重复的基本时隙块进行噪声平滑;
(IV)按照如下规则进行判决
(c)按照如(b)中相同的方法解调出相同基本时隙块中的Q个信息比特,这Q个信息时隙块共同相同的参考时隙块。
示例性地,如图3所示,为M=2,P=4时的基带信号波形的示意图。此处以M=2,P=4为例,可以扩展到M=3,4的场景,解释调制过程和解调制过程。
调制过程:
当Reference slots中M=2,则b(t)满足如下性质:
(1)在每个基本时隙块中的Reference slots的M个时隙的基带信号为:
其中,采用第2个slot到第1个slot的极性变化与第2个slot到Information slots的第1个slot的极性变化的乘积表示参考信息比特B=1;采用Information slots的第1个slot到第2个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示参考信息比特B=0。
(2)对应的,每个基本时隙块中Information slots的P个时隙的基带信号满足如下波形性质,即Information slots的第1个slot的电平与Reference slots的最后1个slot的电平是相反的。采用第4个slot到第3个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示信息比特。
(I)如果调制端发送比特B=1,有:
如果BSC发送设备发送比特B=0,有:
(II)对应的,每个基本时隙块中Information slots的P个时隙的基带信号满足如下波形性质,即Information slots的第1个slot的电平与Reference slots的最后1个slot的电平是相反的。采用第3个slot到第4个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示信息比特。
如果调制端发送比特B=0,有:
如果调制端发送比特B=1,有:
(3)或者,每个基本时隙块中的Reference slots的M个时隙的基带信号为:
其中,采用第2个slot到第1个slot的极性变化与第2个slot到Information slots的第1个slot的极性变化的乘积表示参考信息比特B=1;采用Information slots的第1个slot到第2个slot的极性变化与第2个slot到第一个slot的极性变化的乘积表示参考信息比特B=0。
(I)对应的,每个基本时隙块中Information slots的P个时隙的基带信号满足:Information slots的第1个时隙的电平与Reference slots的最后一个slot电平是相反的。采用第4个slot到第3个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示信息比特。
如果BSC发送设备发送比特B=1,有:
如果BSC发送设备发送比特B=0,有:
(II)对应的,每个基本时隙块中Information slots的P个时隙的基带信号满足:Information slots的第一个时隙的电平与Reference slots的最后一个slot电平是相反的。采用第3个slot到第4个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示信息比特。
如果调制端发送比特B=0,有:
如果调制端发送比特B=1,有:
解调制过程:
(1)先根据M=2个Reference slots的参考信息时隙,并根据M=2,P=4的信号调制规则构建出表征信息比特B=1和B=0的相邻slot相对值的相关值,分别记为
(I)信号调制中,用第2个slot到第1个slot的极性变化与第2个slot到Information slots的第1个slot的极性变化的乘积表示参考信息比特B=1。因此,对于一个基本时隙块中,以最开始的2个slot与Information slots中的第一个slot为Reference slots,并将用第2个slot减去第1个slot,第2个slot减去Information slots
中的第一个slot,分别得到差值:
z11(mN+n)=y((m+1)N+n)-y(mN+n)
=αs(mN+n)(b((m+1)N+n)-b(mN+n))hsthtr+w((m+1)N+n)-w(mN+n)
z12(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))hsthtr+w((m+1)N+n)-w((m+2)N+n)
其中,τ2≤n≤N+τ1-1,mod(m,2)=0,0≤m<M。从表达是中可以得出,由于相邻两个slot的数据s(t)是完全相同的,因此直接链路干扰项被消除了;但也使得接收信号的噪声项的功率抬升,噪声功率变成以前的两倍。
(II)构建表征参考B=1的相对值的相关值,有:
(III)信号调制中,用Information slots的第1个slot到第2个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示参考信息比特B=0。因此,对于一个基本时隙块中,以最开始的2个slot与Information slots中的第一个slot为Reference slots,并将用第2个slot减去第1个slot,Information slots中的第一个slot减去第2个slot,分别得到差值:
z01(mN+n)=y((m+1)N+n)-y(mN+n)
=αs(mN+n)(b((m+1)N+n)-b(mN+n))hsthtr+w((m+1)N+n)-w(mN+n)
z02(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))hsthtr+w((m+2)N+n)-w((m+1)N+n)
其中,τ2≤n≤N+τ1-1,mod(m,2)=0,0≤m<M。
(IV)构建表征参考B=0的相对值的相关值,有:
(2)依次解调P×Q个Information slots中的Q个数据信息比特,以P个Information slots为一个基本单元解调出对应的数据信息比特:
(I)按照预设的规则构建出Information slots中相邻slot相对值的相关值,分别记为Cinf
(a1)如果信号调制是用Information slots中的第4个slot到第3个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示信息比特。因此,对于一个时隙P=4的基本Information slots,即第2个slot减去第1个slot,第4个slot减去第3个slot,得到差值
z(mN+n)=y((m+1)N+n)-y(mN+n)
=αs(mN+n)(b((m+1)N+n)-b(mN+n))hsthtr+w((m+1)N+n)-w(mN+n)
其中,τ2≤n≤N+τ1-1,mod(m,4)=even,M≤m<M+P。
(b1)分别求解同一个Information slots内的两个slot获得的差值z(mN+n)或差值的平均值的相关值,可得:
(a2)如果信号调制是用Information slots中的第3个slot到第4个slot的极性变化与第2个slot到第1个slot的极性变化的乘积表示信息比特。因此,对于一个时隙P=4的基本Information slots,即第2个slot减去第1个slot,第3个slot减去第4个slot,得到差值
z1(mN+n)=y((m+1)N+n)-y(mN+n)
=αs(mN+n)(b((m+1)N+n)-b(mN+n))hsthtr+w((m+1)N+n)-w(mN+n)
其中,τ2≤n≤N+τ1-1,mod(m,4)=0,M≤m<M+P。
z2(mN+n)=y(mN+n)-y((m+1)N+n)
=αs(mN+n)(b(mN+n)-b((m+1)N+n))hsthtr+w(mN+n)-w((m+1)N+n)
其中,τ2≤n≤N+τ1-1,mod(m,4)=2,M≤m<M+P。
(b2)分别求解同一个Information slots内的两个slot获得的差值z(mN+n)或差值的平均值的相关值,可得:
(II)利用构建出的Information slots中相对值的相关值Cinf与Reference slots中构建出的表征信息比特B=1和B=0的两个相对值的相关值进行相关处理
(IV)按照如下规则进行判决
(V)按照上述(I)-(IV)步骤依次解调相同基本时隙块中的Q个信息比特。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的调制方法、解调方法进行详细地说明。
传统的按照调制在调制维度上的区别可以分为单维调制和二维调制,其中典型的单维调制包括:ASK、FSK、PSK调制等;而二维调制则有QAM、APSK等调制。单维调制和二维调制都可以基于高阶调制来提高频带利用率,但带来的问题是随着调制阶数的提高,星座点在欧式空间上的欧式距离减少,因此产生判决误差的概率增加。因为为了保证高阶调制的BER性能,不仅要求系统工作在高SNR场景,并且解调端需要根据发送端发送的导频信号来确定参考星座点,否则会发生解调性能差,这就需要发送端发送能够携带所有星座点的导频参考信号。因此传统基于高阶调制来提高频谱效率的方式对系统开销、功耗和实现复杂度都有较高的要求。
基于极性变化来实现相对调制可以在不需要跟踪载波相位和不估计信道参数下完成信息解调,解调设备只需要简单的与参考符号进行极性判断就可以完成信号解调,因而降低了发送端和接收端的复杂度。并且,这种相对调制对信号干扰、信道衰减具有很强的传输可靠性。但这种基于极性变化来实现相对调制的问题在于:需要设定一个初始参考符号或初始参考波形,后续的调制符号都是基于该初始符号来进行调制的。解调制的时候,每一个符号的解调需要依赖于该初始参考符号的正确解调,否则造成解调中的错误传播问题,从而导致系统整体解调性能恶化。因此如何解决基于相同的初始参考符号进行相对调制中的错误传播问题是保证通信系统可靠性的前提,目前尚缺乏有效的方式解决此类问题。
为了解决上述问题,本申请实施例中,调制端设备可以根据第一配置信息,将待调制比特进行分段,得到N个分段比特,并将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号,并向解调端设备发送对所述N个分段比特相对调制后的调制符号。本方案中,由于调制端设备可以通过将输入的待调制比特进行分段相对调制,且每段都基于新的初始符号进行相对调制,因此可以有效地避免因采用相同的初始参考符号进行相对调制导致的错误传播问题,如此提升了系统整体的调制解调性能和系统的传输可靠性。
本申请实施例提供一种调制方法,图4示出了本申请实施例提供的一种调制方法的流程图。如图4所示,本申请实施例提供的调制方法可以包括下述的步骤201和步骤202。
步骤201、调制端设备根据第一配置信息,将待调制比特进行分段,得到N个分段比特。
本申请实施例中,上述第一配置信息用于指示待调制比特的调制参数,N为正整数。
本申请实施例中,调制端设备可以根据第一配置信息,将待调制的输入比特按照每K=m×L个比特进行分段,得到N个分段比特,即每个分段比特包括K个比特,每个分段比特的调制符号包括u个调制符号。其中,K、L、m和u均为正整数。
可选地,本申请实施例中,上述第一配置信息包括以下至少一项:
相对调制的方式或类型;
调制阶数2L或调制阶数的幂次L;
每个分段比特进行调制的比特数目K或每个分段比特调制出的符号数目m;
待调制比特的分段数目N;
每个分段比特中发送符号的个数u,u=m或u=m+1;
每个分段比特进行相对调制所使用的初始符号1≤n≤N;
发送校正信息的方式。
需要说明的是,相对调制可以理解为:每个分段比特分别采用一个初始符号进行调制,或者每个分段比特在调制时基于上一个分段比特的调制结果进行调制。
可选地,本申请实施例中,上述相对调制的方式或类型包括以下至少一项:基于振幅的调制方式(ASK)、基于频移的调制方式(FSK)、基于相移的调制方式(PSK)、基于正交调幅的调制方式(QAM)、基于幅相的调制方式(APSK)等。
需要说明的是,如果是基于下述(1a)方式进行传输,则上述第一配置信息可以携带每K个比特或N个分段比特进行相对调制所使用的初始符号,即每个分段比特进行相对调制所使用的初始符号1≤n≤N。
可选地,本申请实施例中,上述第一配置信息由第一设备根据以下至少一项确定
调制端设备和解调端设备的能力信息;
调制端设备和解调端设备对应的信道状态信息;
预配置或预定义的。
可选地,本申请实施例中,上述第一设备可以为系统端设备或第二设备,该第二设备可以为发送端设备(调制端设备)、接收端设备(解调端设备)或第三方网络设备节点。
可选地,本申请实施例中,调制端设备可以为用户设备(User Equipment,UE),解调端设备可以为UE。
可选地,本申请实施例中,第一设备可以给调制端设备/解调端设备发送第一配置信息。
可选地,本申请实施例中,第一设备可以给调制端设备/解调端设备发送第二配置信息。
可选地,本申请实施例中,在进入连接态后,发送端设备/接收端设备与系统端设备通过第一信令(UE Capability Enquiry-UE Capability Information)上报自己的UE能力信息。
可选地,本申请实施例中,在进入连接态后,发送端设备/接收端设备与系统端设备通过第二信令(UE Assistance Information)上报自己的UE能力信息。
可选地,本申请实施例中,在初始注册或添加过程中,发送端设备/接收端设备与系统端设备通过初始值消息(Initial UE message)主动上报自己的UE能力信息。
可选地,本申请实施例中,发送端设备/接收端设备与系统端设备可以根据历史状态信息,即曾经设备驻留时记录的信道状态信息,确定第一配置信息;或者,发送端设备/接收端设备与系统端设备可以根据实时的状态信息,例如估计方式或通过其它方式获得的信息状态信息,确定第一配置信息。
可选地,本申请实施例中,上述第一配置信息由第一设备通过以下至少一项承载:无线资源控制(Radio Resource Control,RRC)信令、媒体接入控制-控制端元(Media Access Control-Control Element,MAC-CE)信令、层1(L1)信令。
可选地,本申请实施例中,上述N个分段比特中的每个分段比特包括K个比特,K为正整数。针对每个分段比特中的任意分段比特,该任意分段比特的调制符号包括u个调制符号,u个调制符号为m个调制符号或m+1个调制符号,u和m均为正整数。
其中,m个调制符号为由该任意分段比特的K个比特和初始符号经过相对调制之后得到的符号;m+1个调制符号中的第一个调制符号为初始符号,且m+1个调制符号中的剩余调制符号为由该任意分段比特的K个比特和初始符号经过相对调制之后得到的符号。
可以理解,(1a)、对于N个分段比特中的第n个分段比特,生成u=m+1个调制符号其中2L为相对调制的调制阶数,m+1个调制符号的第一个调制符号为初始符号,后面的m个符号为由K=m×L个比特和初始符号经过相对调制之后得到的符号。对于新输入的K=m×L个比特则以初始符号进行相对调制,生成第n+1个分段比特的m+1个调制符号按照相同的处理进行相对调制。
或者,(1b)、对于N个分段比特中的第n个分段比特,生成u=m个调制符号其中2L为相对调制的调制阶数,m个符号为由K=m×L个比特和初始符号经过相对调制之后得到的符号。对于新输入的K=m×L个比特则以初始符号进行相对调制,生成第n+1个分段比特的m个调制符号按照相同的处理进行相对调制。
步骤202、调制端设备将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号,并向解调端设备发送对N个分段比特相对调制后的调制符号。
本申请实施例中,针对N个分段比特中的每个分段比特(即每K=m×L个比特),调制端设备可以根据第一配置信息,将每个分段比特分别以一个初始符号进行相对调制,生成每个分段比特的u个调制符号。
可以理解,由于每个分段比特是分别采用一个初始符号进行相对调制的,即N个分段比特采用N个初始符号进行相对调制,且N个初始符号不完全相同或完全不同,因此能够有效地避免因采用相同的初始参考符号进行相对调制导致的错误传播问题。
可选地,本申请实施例中,每个分段比特采用的初始符号(也可以称为初始参考符号)由第一配置信息进行配置,或由调制端设备自主确定但发送初始符号的指示信息给第一设备。
示例性地,如图5所示,示出了调制端设备分段相对调制符号的示意图。调制端设备可以对待调制的输入比特(即上述待调制比特)进行分段,得到多个分段比特,每个分段比特调制采用新的初始参考符号(1≤n≤N)。调制符号的每个分段比特中,可以携带或不携带初始参考符号(1≤n≤N),图5中的(A)和(B)分别给出了调制符号分段设计的两种示例,其中图5中的(A)为调制符号中携带初始参考符号,图5中的(B)为调制符号中不携带初始参考符号。
本申请实施例中,调制端设备向解调端设备发送对N个分段比特相对调制后的调制符号(即下述实施例的相对调制符号)后,解调端设备可以对该相对调制符号进行分段解调。具体的实施方式可以参见下述实施例的描述,此处不予赘述。
本申请实施例提供一种调制方法,调制端设备可以根据第一配置信息,将待调制比特进行分段,得到N个分段比特,并将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号,并向解调端设备发送对所述N个分段比特相对调制后的调制符号。本方案中,由于调制端设备可以通过将输入的待调制比特进行分段相对调制,且每段都基于新的初始符号进行相对调制,因此可以有效地避免因采用相同的初始参考符号进行相对调制导致的错误传播问题,如此提升了系统整体的调制解调性能和系统的传输可靠性。
可选地,本申请实施例提供的调制方法还包括下述的步骤203。
步骤203、调制端设备根据第一配置信息,向解调端设备发送校正信息。
本申请实施例中,上述校正信息用于解调端设备对解调制得到的比特中的错误比特进行校正。
可选地,本申请实施例中,调制端设备发送校正信息的方式包括以下任一项:
第一方式:在已调制的N个分段比特的调制符号中每隔p个符号插入校正比特,p为大于1的整数;
第二方式:不在已调制的N个分段比特的调制符号中插入校正比特,直接发送校正信息给解调端设备。
可选地,本申请实施例中,在上述第一方式中,每隔p个符号插入的校正比特为与其最相邻的调制符号的解调制比特。
可选地,本申请实施例中,在调制端设备发送校正信息的方式为第一方式的情况下:
已调制的每个分段比特的调制符号中插入的校正比特为q个校正比特组,q个校正比特组分别对应每个分段比特的调制符号中的q个符号;或者,
已调制的N个分段比特的调制符号中每间隔q个分段比特的调制符号有一个校正比特组。
其中,每个校正比特组包括L个校验比特,L为调制阶数的幂次,q为正数,L为正整数。
可以理解,在第一方式中,即每个分段比特的u个调制符号中有q个符号有对应的校正比特组,每个校正比特组有L个比特。或者,在第一方式中,p=q×u,即每q×u个符号有1个符号有对应的校正比特组,每个校正比特组有L个比特。
可选地,本申请实施例中,在调制端设备发送校正信息的方式为第二方式的情况下:上述校正信息包括以下至少一项:
插入校正比特的符号间隔或符号周期;
N个分段比特的调制符号中的M个符号有校正比特组,M个符号由N个分段比特的数目、每个分段比特的调制符号数目和插入校正比特的符号间隔确定,M为正整数。
可以理解,在第二方式中,上述校正信息包括插入校正比特的符号间隔或符号周期p,p≥2,即每隔p个符号就有一个校正比特组;和/或,上述校正信息包括N×u个调制符号所对应的个校正比特,即一共有个符号(即M个符号)有对应的校正比特组,每个校正比特组有L个校正比特。
示例性地,如图6所示,示出了校正比特的携带方式的示意图。一种实现方式,在已调制的调制符号中携带校正比特组,每隔p个调制符号插入一个符号对应的校正比特组,校正比特为组与其最近的第p个调制符号对应的正确解调制比特,如图6中的(A)所示,即调制符号和校正比特统一发送。另一种实现,调制符号与校正比特信息单独发送,该校正信息中携带N个分段的所有校正比特信息,第i个校正比特组与第i个符号数为p的调制符号中的第p个符号关联,即为其正确的解调制比特,如图6中的(B)所示,即调制符号和校正比特独立发送。
又示例性地,如图7所示,示出了调制符号与校正比特的比例设计的示意图。一种实现方式,p≤u,这也意味着即每个分段比特的u个调制符号中有个符号有对应的校正比特。在这种情况下,可以有以下四种情况:
(1)q为正整数,则第i(1≤i≤q)个校正比特组与第i(1≤i≤q)个子分段的第p个符号关联,如图7中的(A)所示,即p≤u且为整数;
(2)q=1,即p=u这种特殊情况,这也就意味着每个分段比特的u个调制符号中只有1个符号有对应的校正比特,即第u个调制符号存在校正比特,如图7中的(B)所示,即p=u;
(3)q为分数,则第i(1≤i≤q-1)个校正比特组与第i(1≤i≤q-1)个子分段的第p个符号关联,第q个校正比特组与下一个分段中的第p-(u-(q-1)p)个符号关联,如图7中的(C)所示,即p≤u且为非整数,跨分段关联;
(4)q为分数,则第i(1≤i≤q-1)个校正比特组与第i(1≤i≤q-1)个子分段的第p个符号关联,第q个校正比特组与第q个长度为(u-(q-1)p)的子分段中的第(u-(q-1)p)个符号关联,如图7中的(D)所示,即p≤u且为非整数,同分段关联。
总体来说,p≤u这种比例配置,可以适用于对解调制可靠性要求高,或是信道状态不太理想的通信场景,或是传统解调误码率过高的场景。
又示例性地,如图8所示,示出了调制符号与校正比特的比列设计的示意图。另一种实现方式,p>u,这也意味着每个分段比特的u个调制符号中没有符号对应的校正比特,而是每q·u个符号存在一个符号对应的校正比特,其中q>1,N个分段比特中存在个校正比特组,每个比特组长度为L个比特。在这种情况下,可以有以下三种情况:
(1)q为整数,则第i(1≤i≤w)个校正比特组与第i×q(1≤i≤w)个分段的第u个符号关联,如图8中的(A)所示,即p>u,且q为整数;
(2)一种特殊的情况,当q=N时,则N个分段比特中只有一个校正比特组,且该校正比特组与第N个分段比特的第u个符号关联,如图8中的(B)所示,即p>u,且q=N;
(3)q为非整数,则第i(1≤i≤w)个校正比特组与第i×(int(q)+1)(1≤i≤w)个分段的第q-int(q)个符号关联,如图8中的(C)所示,即p>u,且q为非整数。需要说明的是,int()为向下取整。
总体来说,p>u这种比例配置,可以适用于对解调制可靠性要求适中,或是信道状态情况较为理想的通信场景,或是传统解调误码率比较高的场景。
本申请实施例中,在已调制的符号中插入正确的校正比特或发送校正指示信息,可以使得解调端设备能够基于该校正信息或校正指示信息进行校正,有效地解决了相对调制中因解调制错误引起的错误传播问题,从而提高了系统的BER性能和系统的传输可靠性。
需要说明的是,上述步骤203可以与上述步骤202中的“向解调端设备发送对N个分段比特相对调制后的调制符号”同时执行,或者也可以在上述步骤202之后执行。
可选地,本申请实施例提供的调制方法还包括下述的步骤204。
步骤204、调制端设备向解调端设备发送指示信息。
本申请实施例中,上述指示信息用于指示解调端设备解调相对调制后的调制符号。上述指示信息包括以下至少一项:
相对调制的方式或类型;
调制阶数或调制阶数的幂次;
每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目;
待调制比特的分段数目;
每个分段比特进行相对调制所使用的初始符号。
需要说明的是,如果是基于上述(1a)方式进行传输,则上述指示信息可以携带每K个比特或N个分段比特进行相对调制所使用的初始符号,即每个分段比特进行相对调制所使用的初始符号
需要说明的是,上述步骤204可以与上述步骤202中的“向解调端设备发送对N个分段比特相对调制后的调制符号”同时执行,或者也可以在上述步骤202之后执行。
可选地,本申请实施例中,调制端设备可以将已调制的符号(即N个分段比特相对调制后的调制符号)、校正信息(或校正比特)发送给解调端设备,以用于解调端设备进行分段解调,并对解调后得到的比特进行校正。
本申请实施例中,调制端设备向解调端设备发送解相对调制的指示信息,以使得解调端设备可以根据该指示信息精准地解调相对调制后的调制符号。
本申请实施例提供的调制方法,执行主体可以为调制装置。本申请实施例中以调制端设备执行调制方法为例,说明本申请实施例提供的调制装置。
本申请实施例提供一种解调方法,图9示出了本申请实施例提供的一种解调方法的流程图。如图9所示,本申请实施例提供的解调方法可以包括下述的步骤301和步骤302。
步骤301、解调端设备接收调制端设备发送的相对调制符号。
本申请实施例中,上述相对调制符号为调制端设备对N个分段比特相对调制后的调制符号,该N个分段比特由调制端设备将待调制比特进行分段后得到,N为正整数。
可选地,本申请实施例中,上述N个分段比特中的每个分段比特包括K个比特,K为正整数。针对每个分段比特中的任意分段比特,该任意分段比特的调制符号包括u个调制符号,u个调制符号为m个调制符号或m+1个调制符号,m为正整数。
其中,m个调制符号为由该任意分段比特的K个比特和初始符号经过相对调制之后得到的符号;m+1个调制符号中的第一个调制符号为初始符号,且m+1个调制符号中的剩余调制符号为由该任意分段比特的K个比特和初始符号经过相对调制之后得到的符号。
需要说明的是,针对301和步骤302中的N个分段比特的相关方案,可以参见上述实施例中调制方法中的描述,此处不再赘述。
步骤302、解调端设备根据第一信息,对相对调制符号进行分段解调。
本申请实施例中,上述第一信息包括以下任一项:
第二配置信息,第二配置信息用于指示相对调制符号对应的调制参数;
解调制指示信息,解调制指示信息用于指示相对调制符号的解调参数;
第二配置信息和解调制指示信息,第二配置信息和解调制指示信息共同构成解相对调制的参数信息。
可以理解,解调端设备可以只根据第二配置信息,对相对调制符号进行分段解调。或者,解调端设备可以只根据解调制指示信息,对相对调制符号进行分段解调。或者,解调端设备可以根据第二配置信息和解调制指示信息,对相对调制符号进行分段解调,此处的第二配置信息中的信息和解调制指示信息共同构成完整的解调制信息。
可选地,本申请实施例中,上述第二配置信息包括以下至少一项:
相对调制的方式或类型;
调制阶数2L或调制阶数的幂次L;
每个分段比特进行调制的比特数目K或每个分段比特调制出的符号数目m;
待调制比特的分段数目N;
每个分段比特中发送符号的个数u,u=m或u=m+1;
每个分段比特进行相对调制所使用的初始符号0≤n≤N-1;
发送校正信息的方式。
需要说明的是,如果是基于上述(1a)方式进行传输,则上述第二配置信息可以携带每K个比特或N个分段比特进行相对调制所使用的初始符号,即每个分段比特进行相对调制所使用的初始符号0≤n≤N-1。
可选地,本申请实施例中,上述第二配置信息和解调制指示信息共同构成的解相对调制的参数信息包括以下至少一项:
相对调制的方式或类型;
调制阶数或调制阶数的幂次;
每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目。
可选地,本申请实施例中,上述第二配置信息由第一设备根据以下至少一项确定:
调制端设备和解调端设备的能力信息;
调制端设备和解调端设备对应的信道状态信息;
预配置或预定义的。
可选地,本申请实施例中,上述第二配置信息由第一设备通过以下至少一项承载:RRC信令、MAC-CE信令、层1(L1)信令。
需要说明的是,针对此处的第一设备、能力信息、信道状态信息等的相关方案,可以参见上述实施例中调制方法中的描述,此处不再赘述。
本申请实施例提供一种解调方法,解调端设备可以根据第一信息,对相对调制符号(即N个分段比特相对调制后的调制符号)进行分段解调,第一信息包括第二配置信息和/或解调制指示信息。本方案中,解调端设备可以通过将接收的相对调制符号进行分段解调,且相对调制符号为N个分段比特相对调制后的调制符号,因此解调端设备能够精准地对调制符号进行解套,从而有效地解决了相对调制中因解调制错误引起的错误传播问题,提升了系统整体的调制解调性能和系统的传输可靠性。
本申请实施例中,解调端设备可以接收调制端设备发送的相对调制符号、校正信息(或校正比特),以进行分段解调处理。下面通过具体的实现方式,对解调端设备进行分段解调处理的方法进行说明。
可选地,本申请实施例中,上述步骤302具体可以通过下述的步骤302a或步骤302b实现。
步骤302a、在相对调制符号是按照每个分段比特中包括m个调制符号传输的情况下,解调端设备根据第一信息,基于每个分段比特进行相对调制所使用的初始符号和每个分段比特中的m个调制符号进行解调。
可以理解,解调端设备可以对每个分段比特中的调制符号进行相对解调,如果接收到的调制符号是按照上述(1a)方式传输的,则解调端设备可以根据第二配置信息,直接对每个分段比特中的u=m+1个符号进行解调制,得到K=m×L个比特。
步骤302b、在相对调制符号是按照每个分段比特中包括m+1个调制符号传输的情况下,解调端设备根据第一信息,对每个分段比特中除第一个符号之外的m个符号进行解调。
可以理解,解调端设备可以对每个分段比特中的调制符号进行相对解调,如果接收到的调制符号是按照上述(1b)方式传输的,则解调端设备可以基于第二配置信息中的每K个比特进行相对调制所使用的初始符号(0≤n≤N-1)与每个分段比特中的u=m个符号进行解调制,得到K=m×L个比特。
可选地,本申请实施例提供的解调方法还包括下述的步骤303。
步骤303、解调端设备接收调制端设备发送的校正信息。
本申请实施例中,上述校正信息用于解调端设备对解调制得到的比特中的错误比特进行校正。
可选地,本申请实施例中,调制端设备发送校正信息的方式包括以下任一项:
第一方式:在已调制的N个分段比特的调制符号中每隔p个符号插入校正比特,p为大于1的整数;
第二方式:不在已调制的N个分段比特的调制符号中插入校正比特,直接发送校正信息给解调端设备。
可选地,本申请实施例中,在调制端设备发送校正信息的方式为第一方式的情况下:
已调制的每个分段比特的调制符号中插入的校正比特为q个校正比特组,q个校正比特组分别对应每个分段比特的调制符号中的q个符号;或者,
已调制的N个分段比特的调制符号中每间隔q个分段比特的调制符号有一个校正比特组。
其中,每个校正比特组包括L个校验比特,L为调制阶数的幂次,q和L均为正整数。
可选地,本申请实施例中,在调制端设备发送校正信息的方式为第二方式的情况下:上述校正信息包括以下至少一项:
插入校正比特的符号间隔或符号周期;
N个分段比特的调制符号中的M个符号有校正比特组,M个符号由N个分段比特的数目、每个分段比特的 调制符号数目和插入校正比特的符号间隔确定,M为正整数。
需要说明的是,上述步骤303可以与上述步骤301同时执行,或者也可以在上述步骤301之后执行。
需要说明的是,针对此处的校正信息、第一方式、第二方式等的相关方案,可以参见上述实施例中调制方法中的描述,此处不再赘述。
本申请实施例中,在已调制的符号中插入正确的校正比特或发送校正指示信息,可以使得解调端设备能够基于该校正信息或校正指示信息进行校正,有效地解决了相对调制中因解调制错误引起的错误传播问题,从而提高了系统的BER性能和系统的传输可靠性。
可选地,本申请实施例中,上述步骤302具体可以通过下述的步骤302c或步骤302d实现。
步骤302c、在相对调制符号是按照第一方式传输的情况下,解调端设备根据第一信息,将相对调制符号与M个符号均分为N个分段调制符号,并对每个分段调制符号进行相对解调。
本申请实施例中,上述M个符号由N个分段比特的数目、每个分段比特的调制符号数目和插入校正比特的符号间隔确定。上述N个分段调制符号中的每个分段调制符号包括u个调制符号,u为每个分段比特的调制符号数目;M和u均为正整数。
可以理解,如果接收到的调制符号是按照上述第一方式传输的,则解调端设备可以根据第一信息,将接收到的N×u个调制符号与个校正比特组均分为N段(即N个分段调制符号),每一段包含u个调制符号。
步骤302d、在相对调制符号是按照第二方式传输的情况下,解调端设备根据第一信息,将相对调制符号均分为N个分段调制符号,并对每个分段调制符号进行相对解调。
本申请实施例中,上述N个分段调制符号中的每个分段调制符号包括u个调制符号,u为每个分段比特的调制符号数目;u为正整数。
可以理解,如果接收到的调制符号是按照上述第二方式传输的,则解调端设备可以根据第一信息,将接收到的N×u个调制符号均分为N段(即N个分段调制符号),每一段包含u个调制符号。
可选地,本申请实施例提供的解调方法还包括下述的步骤304。
步骤304、解调端设备对解调得到的T个比特中的X个比特进行校正。
本申请实施例中,上述T个比特为对相对调制符号进行解调后得到的符号的比特,T为大于1的整数,X为小于或等于T的正整数。
其中,上述X个比特根据以下任一项确定:相对调制符号中携带的校正比特组、接收到的校正信息、错误比特。
可以理解,解调端设备可以对解调制得到的N×K个比特(即T个比特)中的个比特(即X个比特)进行校正,可以有以下三种情况:
通过相对调制符号中携带的个校正比特组进行校正;
通过接收到的校正信息进行校正;
对于校正错误的比特,表明距离上一个校正正确的比特与该校正比特的解调制比特信息错误,执行其它的处理。
需要说明的是,上述步骤304可以在上述步骤302之后执行。
本申请实施例中,解调端设备可以对解调得到的T个比特中的X个比特进行校正,有效地解决相对调制中因解调制错误引起的错误传播问题,从而提高了系统的BER性能和系统的传输可靠性。
本申请实施例提供的解调方法,执行主体可以为解调装置。本申请实施例中以解调端设备执行解调方法为例,说明本申请实施例提供的解调装置。
本申请实施例提供一种10方法,图10示出了本申请实施例提供的一种调制及解调方法的流程图。如图10所示,本申请实施例提供的调制及解调方法可以包括下述的步骤401至步骤404。
步骤401、调制端设备根据第一配置信息,将待调制比特进行分段,得到N个分段比特。
步骤402、调制端设备将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号,并向解调端设备发送对N个分段比特相对调制后的调制符号。
步骤403、解调端设备接收调制端设备发送的相对调制符号。
步骤404、解调端设备根据第一信息,对相对调制符号进行分段解调。
需要说明的是,此处是对调制端设备的调制方法和解调端设备的解调方法的交互过程进行示意,针对步骤401至步骤404的具体说明,可以参见上述实施例中的描述,此处不再赘述。
图11出了本申请实施例中涉及的调制装置的一种可能的结构示意图,该调制装置应用于调制端设备。如图11所示,调制装置70可以包括:分段模块71、调制模块72和发送模块73。
其中,分段模块71,用于根据第一配置信息,将待调制比特进行分段,得到N个分段比特,该第一配置信息用于指示待调制比特的调制参数,N为正整数。调制模块72,用于将分段模块71得到的每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号。发送模块73,用于向解调端设备发送对调制模块72得到的N个分段比特相对调制后的调制符号。
本申请实施例提供一种调制装置,调制装置可以通过将输入的待调制比特进行分段相对调制,且每段都基于新的初始符号进行相对调制,因此可以有效地避免因采用相同的初始参考符号进行相对调制导致的错误传播问题,如此提升了系统整体的调制解调性能和系统的传输可靠性。
在一种可能的实现方式中,上述第一配置信息包括以下至少一项:
相对调制的方式或类型;
调制阶数或调制阶数的幂次;
每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目;
待调制比特的分段数目;
每个分段比特中发送符号的个数;
每个分段比特进行相对调制所使用的初始符号;
发送校正信息的方式。
在一种可能的实现方式中,上述N个分段比特中的每个分段比特包括K个比特,K为正整数。针对每个分段比特中的任意分段比特,该任意分段比特的调制符号包括u个调制符号,u个调制符号为m个调制符号或m+1个调制符号,u和m均为正整数;其中,m个调制符号为由该任意分段比特的K个比特和初始符号经过相对调制之后得到的符号;m+1个调制符号中的第一个调制符号为初始符号,且m+1个调制符号中的剩余调制符号为由该任意分段比特的K个比特和初始符号经过相对调制之后得到的符号。
在一种可能的实现方式中,上述发送模块73,还用于根据第一配置信息,向解调端设备发送校正信息,该校正信息用于解调端设备对解调制得到的比特中的错误比特进行校正。
在一种可能的实现方式中,调制端设备发送校正信息的方式包括以下任一项:
第一方式:在已调制的N个分段比特的调制符号中每隔p个符号插入校正比特,p为大于1的整数;
第二方式:不在已调制的N个分段比特的调制符号中插入校正比特,直接发送校正信息给解调端设备。
在一种可能的实现方式中,调制端设备发送校正信息的方式为第一方式。已调制的每个分段比特的调制符号中插入的校正比特为q个校正比特组,q个校正比特组分别对应每个分段比特的调制符号中的q个符号;或者,已调制的N个分段比特的调制符号中每间隔q个分段比特的调制符号有一个校正比特组。其中,每个校正比特组包括L个校验比特,L为调制阶数的幂次,q为正数,L为正整数。
在一种可能的实现方式中,调制端设备发送校正信息的方式为第二方式。上述校正信息包括以下至少一项:插入校正比特的符号间隔或符号周期;N个分段比特的调制符号中的M个符号有校正比特组,该M个符号由N个分段比特的数目、每个分段比特的调制符号数目和插入校正比特的符号间隔确定,M为正整数。
在一种可能的实现方式中,上述发送模块73,还用于向解调端设备发送指示信息,该指示信息用于指示解调端设备解调相对调制后的调制符号;其中,指示信息包括以下至少一项:
相对调制的方式或类型;
调制阶数或调制阶数的幂次;
每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目;
待调制比特的分段数目;
每个分段比特进行相对调制所使用的初始符号。
在一种可能的实现方式中,上述第一配置信息由第一设备根据以下至少一项确定:
调制端设备和解调端设备的能力信息;
调制端设备和解调端设备对应的信道状态信息;
预配置或预定义的。
在一种可能的实现方式中,上述第一配置信息由第一设备通过以下至少一项承载:RRC信令、MAC-CE信令、层1信令。
本申请实施例提供的调制装置能够实现上述方法实施例中调制端设备实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例中的解调装置可以是UE,例如具有操作系统的UE,也可以是UE中的部件,例如集成电路或芯片。该UE可以是终端,也可以为除终端之外的其他设备。示例性的,UE可以包括但不限于上述所列举的UE 11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
图12出了本申请实施例中涉及的解调装置的一种可能的结构示意图,该解调装置应用于解调端设备。如图12所示,解调装置80可以包括:接收模块81和解调模块82。
其中,接收模块81,用于接收调制端设备发送的相对调制符号,相对调制符号为调制端设备对N个分段比特相对调制后的调制符号,N个分段比特由调制端设备将待调制比特进行分段后得到,N为正整数。解调模块82,用于根据第一信息,对接收模块81接收的相对调制符号进行分段解调。其中,第一信息包括以下任一项:
第二配置信息,第二配置信息用于指示相对调制符号对应的调制参数;
解调制指示信息,解调制指示信息用于指示相对调制符号的解调参数;
第二配置信息和解调制指示信息,第二配置信息和解调制指示信息共同构成解相对调制的参数信息。
本申请实施例提供一种解调装置,解调装置可以通过将接收的相对调制符号进行分段解调,且相对调制符号为N个分段比特相对调制后的调制符号,因此解调装置能够精准地对调制符号进行解套,从而有效地解决了相对调制中因解调制错误引起的错误传播问题,提升了系统整体的调制解调性能和系统的传输可靠性。
在一种可能的实现方式中,上述第二配置信息包括以下至少一项:
相对调制的方式或类型;
调制阶数或调制阶数的幂次;
每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目;
待调制比特的分段数目;
每个分段比特中发送符号的个数;
每个分段比特进行相对调制所使用的初始符号;
发送校正信息的方式。
在一种可能的实现方式中,上述接收模块81,还用于接收调制端设备发送的校正信息,该校正信息用于解 调端设备对解调制得到的比特中的错误比特进行校正。
在一种可能的实现方式中,调制端设备发送校正信息的方式包括以下任一项:
第一方式:在已调制的N个分段比特的调制符号中每隔p个符号插入校正比特,p为大于1的整数;
第二方式:不在已调制的N个分段比特的调制符号中插入校正比特,直接发送校正信息给解调端设备。
在一种可能的实现方式中,调制端设备发送校正信息的方式为第一方式。已调制的每个分段比特的调制符号中插入的校正比特为q个校正比特组,q个校正比特组分别对应每个分段比特的调制符号中的q个符号;或者,已调制的N个分段比特的调制符号中每间隔q个分段比特的调制符号有一个校正比特组。其中,每个校正比特组包括L个校验比特,L为调制阶数的幂次,q和L均为正整数。
在一种可能的实现方式中,调制端设备发送校正信息的方式为第二方式。上述校正信息包括以下至少一项:插入校正比特的符号间隔或符号周期;N个分段比特的调制符号中的M个符号有校正比特组,该M个符号由N个分段比特的数目、每个分段比特的调制符号数目和插入校正比特的符号间隔确定,M为正整数。
在一种可能的实现方式中,上述解调模块82,具体用于以下任一项:
在相对调制符号是按照第一方式传输的情况下,根据第一信息,将相对调制符号与M个符号均分为N个分段调制符号,并对每个分段调制符号进行相对解调;
在相对调制符号是按照第二方式传输的情况下,根据第一信息,将相对调制符号均分为N个分段调制符号,并对每个分段调制符号进行相对解调;
其中,M个符号由N个分段比特的数目、每个分段比特的调制符号数目和插入校正比特的符号间隔确定;每个分段调制符号包括u个调制符号,u为每个分段比特的调制符号数目;M和u均为正整数。
在一种可能的实现方式中,上述N个分段比特中的每个分段比特包括K个比特,K为正整数。针对每个分段比特中的任意分段比特,该任意分段比特的调制符号包括u个调制符号,u个调制符号为m个调制符号或m+1个调制符号,m为正整数。其中,m个调制符号为由该任意分段比特的K个比特和初始符号经过相对调制之后得到的符号;m+1个调制符号中的第一个调制符号为初始符号,且m+1个调制符号中的剩余调制符号为由该任意分段比特的K个比特和初始符号经过相对调制之后得到的符号。
在一种可能的实现方式中,上述解调模块82,具体用于以下任一项:
在相对调制符号是按照每个分段比特中包括m个调制符号传输的情况下,根据第一信息,基于每个分段比特进行相对调制所使用的初始符号和每个分段比特中的m个调制符号进行解调;
在相对调制符号是按照每个分段比特中包括m+1个调制符号传输的情况下,根据第一信息,对每个分段比特中除第一个符号之外的m个符号进行解调。
在一种可能的实现方式中,上述第二配置信息和解调制指示信息共同构成的解相对调制的参数信息包括以下至少一项:
相对调制的方式或类型;
调制阶数或调制阶数的幂次;
每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目。
在一种可能的实现方式中,本申请实施例提供的解调装置80还可以包括:校正模块。校正模块,用于对解调得到的T个比特中的X个比特进行校正,该T个比特为对相对调制符号进行解调后得到的符号的比特,T为大于1的整数,X为小于或等于T的正整数。其中,X个比特根据以下任一项确定:相对调制符号中携带的校正比特组、接收到的校正信息、错误比特。
在一种可能的实现方式中,上述第二配置信息由第一设备根据以下至少一项确定:
调制端设备和解调端设备的能力信息;
调制端设备和解调端设备对应的信道状态信息;
预配置或预定义的。
在一种可能的实现方式中,上述第二配置信息由第一设备通过以下至少一项承载:RRC信令、MAC-CE信令、层1信令。
本申请实施例提供的解调装置能够实现上述方法实施例中解调端设备实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例中的解调装置可以是UE,例如具有操作系统的UE,也可以是UE中的部件,例如集成电路或芯片。该UE可以是终端,也可以为除终端之外的其他设备。示例性的,UE可以包括但不限于上述所列举的UE 11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
可选地,如图13所示,本申请实施例还提供一种通信设备5000,包括处理器5001和存储器5002,存储器5002上存储有可在所述处理器5001上运行的程序或指令,例如,该通信设备5000为调制端设备时,该程序或指令被处理器5001执行时实现上述调制端设备侧方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。该通信设备5000为解调端设备时,该程序或指令被处理器5001执行时实现上述解调端设备侧方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,本申请实施例中,上述调制端设备可以为UE;上述解调端设备可以为UE。下述实施例中对UE的硬件结构进行示意。
本申请实施例还提供一种UE,包括处理器和通信接口,处理器用于根据第一配置信息,将待调制比特进行分段,得到N个分段比特,该第一配置信息用于指示待调制比特的调制参数,N为正整数;将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号。通信接口用于向解调端设备发送对N个分段比特相对调制后的调制符号。该UE实施例与上述调制端设备侧方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该UE实施例中,且能达到相同的技术效果。
本申请实施例还提供一种UE,包括处理器和通信接口,通信接口用于接收调制端设备发送的相对调制符号,该相对调制符号为调制端设备对N个分段比特相对调制后的调制符号,该N个分段比特由调制端设备将待调制比特进行分段后得到,N为正整数。所述处理器用于根据第一信息,对相对调制符号进行分段解调;其中,第一信息包括以下任一项:第二配置信息,第二配置信息用于指示相对调制符号对应的调制参数;解调制指示信息,解调制指示信息用于指示相对调制符号的解调参数;第二配置信息和解调制指示信息,第二配置信息和解调制指示信息共同构成解相对调制的参数信息。该UE实施例与上述解调端设备侧方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该UE实施例中,且能达到相同的技术效果。
具体地,图14为实现本申请实施例的一种UE的硬件结构示意图。
该UE 7000包括但不限于:射频单元7001、网络模块7002、音频输出单元7003、输入单元7004、传感器7005、显示单元7006、用户输入单元7007、接口单元7008、存储器7009以及处理器7010等中的至少部分部件。
本领域技术人员可以理解,UE 7000还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器7010逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图14中示出的UE结构并不构成对UE的限定,UE可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元7004可以包括图形处理单元(Graphics Processing Unit,GPU)
70041和麦克风70042,图形处理器70041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元7006可包括显示面板70061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板70061。用户输入单元7007包括触控面板70071以及其他输入设备70072中的至少一种。触控面板70071,也称为触摸屏。触控面板70071可包括触摸检测装置和触摸控制器两个部分。其他输入设备70072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元7001接收来自网络侧设备的下行数据后,可以传输给处理器7010进行处理;另外,射频单元7001可以向网络侧设备发送上行数据。通常,射频单元7001包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器7009可用于存储软件程序或指令以及各种数据。存储器7009可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器7009可以包括易失性存储器或非易失性存储器,或者,存储器7009可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器7009包括但不限于这些和任意其它适合类型的存储器。
处理器7010可包括一个或多个处理单元;可选的,处理器7010集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器7010中。
其中,处理器7010,用于根据第一配置信息,将待调制比特进行分段,得到N个分段比特,该第一配置信息用于指示待调制比特的调制参数,N为正整数;将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号。
射频单元7001,用于向解调端设备发送对N个分段比特相对调制后的调制符号。
本申请实施例提供一种UE,UE可以通过将输入的待调制比特进行分段相对调制,且每段都基于新的初始符号进行相对调制,因此可以有效地避免因采用相同的初始参考符号进行相对调制导致的错误传播问题,如此提升了系统整体的调制解调性能和系统的传输可靠性。
本申请实施例提供的UE能够实现上述方法实施例中调制端设备实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
或者,射频单元7001,用于接收调制端设备发送的相对调制符号,该相对调制符号为调制端设备对N个分段比特相对调制后的调制符号,该N个分段比特由调制端设备将待调制比特进行分段后得到,N为正整数。
处理器7010,用于根据第一信息,对相对调制符号进行分段解调;其中,第一信息包括以下任一项:
第二配置信息,第二配置信息用于指示相对调制符号对应的调制参数;
解调制指示信息,解调制指示信息用于指示相对调制符号的解调参数;
第二配置信息和解调制指示信息,第二配置信息和解调制指示信息共同构成解相对调制的参数信息。
本申请实施例提供一种UE,UE可以通过将接收的相对调制符号进行分段解调,且相对调制符号为N个分段比特相对调制后的调制符号,因此UE能够精准地对调制符号进行解套,从而有效地解决了相对调制中因解调制错误引起的错误传播问题,提升了系统整体的调制解调性能和系统的传输可靠性。
本申请实施例提供的UE能够实现上述方法实施例中解调端设备实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种网络侧设备,包括处理器和通信接口,该网络侧设备实施例与上述调制端设备和 解调端设备方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中,且能达到相同的技术效果。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述调制方法或解调方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的通信设备中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种通信系统,包括:调制端设备和解调端设备,所述调制端设备设备可用于执行如上所述的调制方法的步骤,所述解调端设备可用于执行如上所述的解调方法的步骤。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (29)

  1. 一种调制方法,应用于调制端设备,包括:
    根据第一配置信息,将待调制比特进行分段,得到N个分段比特,所述第一配置信息用于指示所述待调制比特的调制参数,N为正整数;
    将每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号,并向解调端设备发送对所述N个分段比特相对调制后的调制符号。
  2. 根据权利要求1所述的方法,其中,所述第一配置信息包括以下至少一项:
    相对调制的方式或类型;
    调制阶数或调制阶数的幂次;
    每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目;
    所述待调制比特的分段数目;
    每个分段比特中发送符号的个数;
    每个分段比特进行相对调制所使用的初始符号;
    发送校正信息的方式。
  3. 根据权利要求1所述的方法,其中,每个分段比特包括K个比特,K为正整数;
    针对每个分段比特中的任意分段比特,所述任意分段比特的调制符号包括u个调制符号,所述u个调制符号为m个调制符号或m+1个调制符号,u和m均为正整数;
    其中,所述m个调制符号为由所述任意分段比特的K个比特和初始符号经过相对调制之后得到的符号;所述m+1个调制符号中的第一个调制符号为初始符号,且所述m+1个调制符号中的剩余调制符号为由所述任意分段比特的K个比特和初始符号经过相对调制之后得到的符号。
  4. 根据权利要求1至3中任一项所述的方法,其中,所述方法还包括:
    根据所述第一配置信息,向所述解调端设备发送校正信息,所述校正信息用于所述解调端设备对解调制得到的比特中的错误比特进行校正。
  5. 根据权利要求4所述的方法,其中,所述调制端设备发送所述校正信息的方式包括以下任一项:
    第一方式:在已调制的所述N个分段比特的调制符号中每隔p个符号插入校正比特,p为大于1的整数;
    第二方式:不在已调制的所述N个分段比特的调制符号中插入校正比特,直接发送所述校正信息给所述解调端设备。
  6. 根据权利要求5所述的方法,其中,所述调制端设备发送所述校正信息的方式为所述第一方式;
    已调制的每个分段比特的调制符号中插入的校正比特为q个校正比特组,所述q个校正比特组分别对应每个分段比特的调制符号中的q个符号;或者,
    已调制的所述N个分段比特的调制符号中每间隔q个分段比特的调制符号有一个校正比特组;
    其中,每个校正比特组包括L个校验比特,L为调制阶数的幂次,q为正数,L为正整数。
  7. 根据权利要求5所述的方法,其中,所述调制端设备发送所述校正信息的方式为所述第二方式;
    所述校正信息包括以下至少一项:
    插入校正比特的符号间隔或符号周期;
    所述N个分段比特的调制符号中的M个符号有校正比特组,所述M个符号由所述N个分段比特的数目、每个分段比特的调制符号数目和插入校正比特的符号间隔确定,M为正整数。
  8. 根据权利要求1所述的方法,其中,所述方法还包括:
    向所述解调端设备发送指示信息,所述指示信息用于指示所述解调端设备解调相对调制后的调制符号;
    其中,所述指示信息包括以下至少一项:
    相对调制的方式或类型;
    调制阶数或调制阶数的幂次;
    每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目;
    待调制比特的分段数目;
    每个分段比特进行相对调制所使用的初始符号。
  9. 根据权利要求1所述的方法,其中,所述第一配置信息由第一设备根据以下至少一项确定:
    所述调制端设备和所述解调端设备的能力信息;
    所述调制端设备和所述解调端设备对应的信道状态信息;
    预配置或预定义的。
  10. 根据权利要求1或9所述的方法,其中,所述第一配置信息由第一设备通过以下至少一项承载:无线资源控制RRC信令、媒体接入控制-控制端元MAC-CE信令、层1信令。
  11. 一种解调方法,应用于解调端设备,包括:
    接收调制端设备发送的相对调制符号,所述相对调制符号为所述调制端设备对N个分段比特相对调制后的调制符号,所述N个分段比特由所述调制端设备将待调制比特进行分段后得到,N为正整数;
    根据第一信息,对所述相对调制符号进行分段解调;
    其中,所述第一信息包括以下任一项:
    第二配置信息,所述第二配置信息用于指示所述相对调制符号对应的调制参数;
    解调制指示信息,所述解调制指示信息用于指示所述相对调制符号的解调参数;
    第二配置信息和解调制指示信息,所述第二配置信息和所述解调制指示信息共同构成解相对调制的参数信息。
  12. 根据权利要求11所述的方法,其中,所述第二配置信息包括以下至少一项:
    相对调制的方式或类型;
    调制阶数或调制阶数的幂次;
    每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目;
    所述待调制比特的分段数目;
    每个分段比特中发送符号的个数;
    每个分段比特进行相对调制所使用的初始符号;
    发送校正信息的方式。
  13. 根据权利要求11所述的方法,其中,所述方法还包括:
    接收所述调制端设备发送的校正信息,所述校正信息用于所述解调端设备对解调制得到的比特中的错误比特进行校正。
  14. 根据权利要求13所述的方法,其中,所述调制端设备发送所述校正信息的方式包括以下任一项:
    第一方式:在已调制的所述N个分段比特的调制符号中每隔p个符号插入校正比特,p为大于1的整数;
    第二方式:不在已调制的所述N个分段比特的调制符号中插入校正比特,直接发送所述校正信息给所述解调端设备。
  15. 根据权利要求14所述的方法,其中,所述调制端设备发送所述校正信息的方式为所述第一方式;
    已调制的每个分段比特的调制符号中插入的校正比特为q个校正比特组,所述q个校正比特组分别对应每个分段比特的调制符号中的q个符号;或者,
    已调制的所述N个分段比特的调制符号中每间隔q个分段比特的调制符号有一个校正比特组;
    其中,每个校正比特组包括L个校验比特,L为调制阶数的幂次,q和L均为正整数。
  16. 根据权利要求14所述的方法,其中,所述调制端设备发送所述校正信息的方式为所述第二方式;
    所述校正信息包括以下至少一项:
    插入校正比特的符号间隔或符号周期;
    所述N个分段比特的调制符号中的M个符号有校正比特组,所述M个符号由所述N个分段比特的数目、每个分段比特的调制符号数目和插入校正比特的符号间隔确定,M为正整数。
  17. 根据权利要求14至16中任一项所述的方法,其中,所述根据第一信息,对所述相对调制符号进行分段解调,包括以下任一项:
    在所述相对调制符号是按照所述第一方式传输的情况下,根据所述第一信息,将所述相对调制符号与M个符号均分为N个分段调制符号,并对每个分段调制符号进行相对解调;
    在所述相对调制符号是按照所述第二方式传输的情况下,根据所述第一信息,将所述相对调制符号均分为N个分段调制符号,并对每个分段调制符号进行相对解调;
    其中,所述M个符号由所述N个分段比特的数目、每个分段比特的调制符号数目和插入校正比特的符号间隔确定;每个分段调制符号包括u个调制符号,u为每个分段比特的调制符号数目;M和u均为正整数。
  18. 根据权利要求11所述的方法,其中,每个分段比特包括K个比特,K为正整数;
    针对每个分段比特中的任意分段比特,所述任意分段比特的调制符号包括u个调制符号,所述u个调制符号为m个调制符号或m+1个调制符号,m为正整数;
    其中,所述m个调制符号为由所述任意分段比特的K个比特和初始符号经过相对调制之后得到的符号;所述m+1个调制符号中的第一个调制符号为初始符号,且所述m+1个调制符号中的剩余调制符号为由所述任意分段比特的K个比特和初始符号经过相对调制之后得到的符号。
  19. 根据权利要求18所述的方法,其中,所述根据第一信息,对所述相对调制符号进行分段解调,包括以下任一项:
    在所述相对调制符号是按照每个分段比特中包括m个调制符号传输的情况下,根据所述第一信息,基于每个分段比特进行相对调制所使用的初始符号和每个分段比特中的m个调制符号进行解调;
    在所述相对调制符号是按照每个分段比特中包括m+1个调制符号传输的情况下,根据所述第一信息,对每个分段比特中除第一个符号之外的m个符号进行解调。
  20. 根据权利要求11所述的方法,其中,所述第二配置信息和所述解调制指示信息共同构成的解相对调制的参数信息包括以下至少一项:
    相对调制的方式或类型;
    调制阶数或调制阶数的幂次;
    每个分段比特进行调制的比特数目或每个分段比特调制出的符号数目。
  21. 根据权利要求11所述的方法,其中,所述方法还包括:
    对解调得到的T个比特中的X个比特进行校正,所述T个比特为对所述相对调制符号进行解调后得到的符号的比特,T为大于1的整数,X为小于或等于T的正整数;
    其中,所述X个比特根据以下任一项确定:所述相对调制符号中携带的校正比特组、接收到的校正信息、错误比特。
  22. 根据权利要求11所述的方法,其中,所述第二配置信息由第一设备根据以下至少一项确定:
    所述调制端设备和所述解调端设备的能力信息;
    所述调制端设备和所述解调端设备对应的信道状态信息;
    预配置或预定义的。
  23. 根据权利要求11或22所述的方法,其中,所述第二配置信息由第一设备通过以下至少一项承载:无线资源控制RRC信令、媒体接入控制-控制端元MAC-CE信令、层1信令。
  24. 一种调制装置,应用于调制端设备,包括:分段模块、调制模块和发送模块;
    所述分段模块,用于根据第一配置信息,将待调制比特进行分段,得到N个分段比特,所述第一配置信息用于指示所述待调制比特的调制参数,N为正整数;
    所述调制模块,用于将所述分段模块得到的每个分段比特分别采用一个初始符号进行相对调制,得到每个分段比特的调制符号;
    所述发送模块,用于向解调端设备发送对所述调制模块得到的所述N个分段比特相对调制后的调制符号。
  25. 一种解调装置,应用于解调端设备,包括:接收模块和解调模块;
    所述接收模块,用于接收调制端设备发送的相对调制符号,所述相对调制符号为所述调制端设备对N个分段比特相对调制后的调制符号,所述N个分段比特由所述调制端设备将待调制比特进行分段后得到,N为正整数;
    所述解调模块,用于根据第一信息,对所述接收模块接收的所述相对调制符号进行分段解调;
    其中,所述第一信息包括以下任一项:
    第二配置信息,所述第二配置信息用于指示所述相对调制符号对应的调制参数;
    解调制指示信息,所述解调制指示信息用于指示所述相对调制符号的解调参数;
    第二配置信息和解调制指示信息,所述第二配置信息和所述解调制指示信息共同构成解相对调制的参数信息。
  26. 一种调制端设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至10中任一项所述的调制方法的步骤。
  27. 一种解调端设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求11至23中任一项所述的解调方法的步骤。
  28. 一种通信系统,所述通信系统包括如权利要求24所述的调制装置以及如权利要求25所述的解调装置;或者,
    所述通信系统包括如权利要求26所述的调制端设备和如权利要求27所述的解调端设备。
  29. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至10中任一项所述的调制方法的步骤,或者实现如权利要求11至23中任一项所述的解调方法的步骤。
PCT/CN2023/121603 2022-09-29 2023-09-26 调制、解调方法、装置、设备、系统及存储介质 WO2024067598A1 (zh)

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