WO2022057568A1 - 数据传输方法和装置 - Google Patents

数据传输方法和装置 Download PDF

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Publication number
WO2022057568A1
WO2022057568A1 PCT/CN2021/113840 CN2021113840W WO2022057568A1 WO 2022057568 A1 WO2022057568 A1 WO 2022057568A1 CN 2021113840 W CN2021113840 W CN 2021113840W WO 2022057568 A1 WO2022057568 A1 WO 2022057568A1
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WIPO (PCT)
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data packet
modulation
bits
constellation
codeword
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PCT/CN2021/113840
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English (en)
French (fr)
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唐浩
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华为技术有限公司
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Publication of WO2022057568A1 publication Critical patent/WO2022057568A1/zh
Priority to US18/183,719 priority Critical patent/US12057940B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3483—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel using a modulation of the constellation points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3488—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes

Definitions

  • the present application relates to the field of communications, and more particularly, to a data transmission method and apparatus.
  • the receiving end feeds back an acknowledgment response (acknowledge, ACK) or negative acknowledgement (NACK) through a hybrid automatic repeat request (HARQ) method to notify the sender that the data has been successfully received or not. was successfully received.
  • HARQ hybrid automatic repeat request
  • this HARQ feedback method is not applicable in some application scenarios. For example, broadcast service scenarios, multi-hop relay communication scenarios, and ultra-reliable and low-latency communication (URLLC) scenarios.
  • the HARQ feedback method may not meet the higher reliability and latency requirements.
  • the present application provides a data transmission method and apparatus, in order to improve the reliability of data transmission.
  • a data transmission method is provided, and the method can be executed by a second device or a module (such as a chip) configured in (or used in) the second device. The following is performed by taking the method executed by the second device as an example illustrate.
  • the method includes: sending a first data packet and a second data packet to a first device, where the first data packet includes at least one first modulation symbol, and the at least one first modulation symbol is a word modulation, the second data packet includes at least one second modulation symbol, and the at least one second modulation symbol is obtained by modulating the second code word according to the second modulation mode; sending third data to the first device packet, the third data packet includes at least one third modulation symbol, one of the third modulation symbols is obtained by modulating a bit group according to a third modulation method, and the one bit group includes at least one bit in the first codeword and at least one bit in the second codeword.
  • the first device can decode the information of the first codeword in the first data packet and the retransmitted data packet, and the information of the second codeword in the second data packet and the retransmitted data packet, Improves the probability of successful decoding.
  • the third data packet can be demodulated and decoded in the presence of prior information. The probability of successful decoding of the data packet is further improved, thereby improving the reliability of data transmission.
  • the first modulation mode corresponds to a first constellation diagram
  • each constellation point in the first constellation diagram includes M bits
  • the second modulation mode corresponds to the first constellation diagram.
  • Two constellation diagrams each constellation point in the second constellation diagram includes Q bits
  • the third modulation scheme corresponds to the third constellation diagram
  • each constellation point in the third constellation diagram includes N bits, wherein M, Q and N are positive integers.
  • the first modulation method is a quadrature amplitude modulation QAM with a modulation order of M, and there is only 1 between two adjacent constellation points in the first constellation diagram.
  • the bits have different values, and/or the second modulation mode is quadrature amplitude modulation QAM with a modulation order of Q, and only 1 bit value is different between two adjacent constellation points in the second constellation diagram.
  • each constellation point in the third constellation diagram includes a first position and a second position, and the bits in the first codeword are constellated according to the first position.
  • Point mapping the bits in the second codeword are mapped to constellation points according to the second position, wherein the first position includes P bits among the N bits, and the second position includes NP among the N bits bits, P and N are positive integers and P ⁇ N.
  • the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same first position value in the third constellation diagram is greater than the constellation point in the second constellation diagram. and/or, the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same second position value in the third constellation map is greater than the minimum Euclidean distance between the constellation points in the first constellation map.
  • the minimum Euclidean distance between constellation points is increased, which can reduce the SNR requirement when decoding data packets, successfully decode with a lower SNR, and improve the probability of successful decoding.
  • the first codeword includes L bits in total
  • the second codeword includes K bits in total
  • the third data packet includes the third modulation symbols
  • the third data packet further includes bits and the remaining K bits modulation symbols obtained by bit modulation.
  • the first codeword includes a total of L bits
  • the second codeword includes a total of K bits. If L>K, the third data packet includes the 2K/N of the third modulation symbols obtained by modulating K bits in the first codeword and K bits in the second codeword by the third modulation method, and the third data packet further includes The modulation symbol obtained by modulating the remaining (LK) bits in the first code word by the modulation mode or the third modulation mode; or, if L ⁇ K, the third data packet includes the modulation symbol of the first code according to the third modulation mode.
  • the 2L/N third modulation symbols obtained by modulating the L bits in the word and the L bits in the second codeword, and the third data packet further includes a pair of pairs according to the second modulation scheme or the third modulation scheme. Modulation symbols obtained by modulating the remaining (KL) bits in the second codeword.
  • the method further includes: acquiring first configuration information, where the first configuration information is used to indicate an association between the third data packet and the first data packet relationship, and/or an association relationship between the third data packet and the second data packet.
  • acquiring the first configuration information may be either receiving the first configuration information from the outside, or generating the first configuration information internally.
  • the association relationship between the third data packet and the first data packet and/or the second data packet is determined according to the first configuration information, thereby determining that the third data packet is modulated according to the first codeword and the second codeword .
  • sending the third data packet to the first device includes: after receiving the first feedback information and the second feedback information from the first device, sending the third data packet The third data packet, wherein the first feedback information is used to indicate that the first data packet is not successfully received, and the second feedback information is used to indicate that the second data packet is not successfully received.
  • the third data packet is sent.
  • the receiving end is able to combine and decode the part corresponding to the first code word in the first data packet and the third data packet, and combine and decode the part corresponding to the second code word in the second data packet and the third data packet, so as to improve the the probability of successful decoding.
  • the third data packet can decode the other codeword in the presence of prior information. The probability of successful decoding of the codeword is further improved, thereby improving the reliability of data transmission.
  • a data transmission method is provided, and the method can be executed by a first device or a module (such as a chip) configured in (or used for) the first device.
  • the following takes the method executed by the first device as an example. illustrate.
  • the method includes: receiving a first data packet and a second data packet from a second device, where the first data packet includes at least one first modulation symbol obtained by modulating a first codeword according to a first modulation method, the second The data packet includes at least one second modulation symbol obtained by modulating the second code word according to the second modulation mode; receiving a third data packet from the second device, the third data packet includes at least one third modulation symbol, the The third modulation symbol is obtained by modulating a bit group according to the third modulation mode, and the one bit group includes at least one bit in the first codeword and at least one bit in the second codeword; the first data packet, the second data packet and the third data packet are decoded.
  • the first modulation mode corresponds to a first constellation diagram
  • each constellation point in the first constellation diagram includes M bits
  • the second modulation mode corresponds to the first constellation diagram.
  • Two constellation diagrams each constellation point in the second constellation diagram includes Q bits
  • the third modulation scheme corresponds to the third constellation diagram
  • each constellation point in the third constellation diagram includes N bits, wherein M, Q and N are positive integers.
  • the first modulation method is a quadrature amplitude modulation QAM with a modulation order of M, and there is only 1 between two adjacent constellation points in the first constellation diagram.
  • the bits have different values, and/or the second modulation mode is quadrature amplitude modulation QAM with a modulation order of Q, and only 1 bit value is different between two adjacent constellation points in the second constellation diagram.
  • each constellation point in the third constellation diagram includes a first position and a second position, and the bits in the first codeword are constellated according to the first position.
  • Point mapping the bits in the second codeword are mapped to constellation points according to the second position, wherein the first position includes P bits among the N bits, and the second position includes NP among the N bits bits, P and N are positive integers and P ⁇ N.
  • the decoding the first data packet, the second data packet and the third data packet includes: combining the at least one first modulation symbol and the Decoding is performed after the information corresponding to the first position in the at least one third modulation symbol; and the decoding is performed after combining the at least one second modulation symbol and the information corresponding to the second position in the at least one third modulation symbol.
  • the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same first position value in the third constellation diagram is greater than the constellation point in the second constellation diagram. and/or, the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same second position value in the third constellation map is greater than the minimum Euclidean distance between the constellation points in the first constellation map.
  • the first codeword includes L bits in total
  • the second codeword includes K bits in total
  • the third data packet includes the third modulation symbols
  • the third data packet further includes bits and the remaining K bits modulation symbols obtained by bit modulation.
  • the first codeword includes L bits in total, and the second codeword includes K bits in total. If L>K, the third data packet includes the 2K/N of the third modulation symbols obtained by modulating K bits in the first codeword and K bits in the second codeword by the third modulation method, and the third data packet further includes The modulation symbol obtained by modulating the remaining (LK) bits in the first code word by the modulation mode or the third modulation mode; or, if L ⁇ K, the third data packet includes the modulation symbol of the first code according to the third modulation mode.
  • the 2L/N third modulation symbols obtained by modulating the L bits in the word and the L bits in the second codeword, and the third data packet further includes a pair of pairs according to the second modulation scheme or the third modulation scheme. Modulation symbols obtained by modulating the remaining (KL) bits in the second codeword.
  • the method further includes: acquiring first configuration information, where the first configuration information is used to indicate an association between the third data packet and the first data packet relationship, and/or an association relationship between the third data packet and the second data packet.
  • acquiring the first configuration information may be either receiving the first configuration information from the outside, or generating the first configuration information internally.
  • sending the third data packet to the first device includes: after sending the first feedback information and the second feedback information to the second device, receiving the third data packet A data packet, wherein the first feedback information is used to indicate that the first data packet is not successfully received, and the second feedback information is used to indicate that the second data packet is not successfully received.
  • a communication apparatus is provided, and the apparatus is a second device or a module (eg, a chip) configured in (or used for) the second device.
  • a module eg, a chip
  • the communication device includes: a processing unit configured to modulate a first code word according to a first modulation scheme to obtain at least one first modulation symbol, and modulate a second code word according to a second modulation scheme to obtain at least one second modulation symbol; a transceiver unit , used to send a first data packet and a second data packet to the first device, where the first data packet includes the at least one first modulation symbol, and the second data packet includes the at least one second modulation symbol; the transceiver unit is also used to send a third data packet to the first device, where the third data packet includes at least one third modulation symbol, one of the third modulation symbols is obtained by modulating a bit group according to a third modulation method, and the one bit The group includes at least one bit in the first codeword and at least one bit in the second codeword.
  • the first modulation mode corresponds to a first constellation diagram
  • each constellation point in the first constellation diagram includes M bits
  • the second modulation mode corresponds to the first constellation diagram.
  • Two constellation diagrams each constellation point in the second constellation diagram includes Q bits
  • the third modulation scheme corresponds to the third constellation diagram
  • each constellation point in the third constellation diagram includes N bits, wherein M, Q and N are positive integers.
  • the first modulation method is a quadrature amplitude modulation QAM with a modulation order of M, and there is only 1 between two adjacent constellation points in the first constellation diagram.
  • the bits have different values, and/or the second modulation mode is quadrature amplitude modulation QAM with a modulation order of Q, and only 1 bit value is different between two adjacent constellation points in the second constellation diagram.
  • each constellation point in the third constellation diagram includes a first position and a second position, and the bits in the first codeword are constellated according to the first position.
  • Point mapping the bits in the second codeword are mapped to constellation points according to the second position, wherein the first position includes P bits among the N bits, and the second position includes NP among the N bits bits, P and N are positive integers and P ⁇ N.
  • the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same first position value in the third constellation diagram is greater than the constellation point in the second constellation diagram. and/or, the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same second position value in the third constellation map is greater than the minimum Euclidean distance between the constellation points in the first constellation map.
  • the first codeword includes L bits in total
  • the second codeword includes K bits in total
  • the third data packet includes the third modulation symbols
  • the third data packet further includes bits and the remaining K bits modulation symbols obtained by bit modulation.
  • the first codeword includes L bits in total
  • the second codeword includes K bits in total. If L>K, the third data packet includes 2K/N of the third modulation symbols obtained by modulating K bits in the first codeword and K bits in the second codeword by the third modulation method, and the third data packet further includes The modulation symbol obtained by modulating the remaining (LK) bits in the first code word by the modulation mode or the third modulation mode; or, if L ⁇ K, the third data packet includes the modulation symbol of the first code according to the third modulation mode.
  • the 2L/N third modulation symbols obtained by modulating the L bits in the word and the L bits in the second codeword, and the third data packet further includes a pair of pairs according to the second modulation scheme or the third modulation scheme. Modulation symbols obtained by modulating the remaining (KL) bits in the second codeword.
  • the transceiver unit is further configured to acquire first configuration information, where the first configuration information is used to indicate a connection between the third data packet and the first data packet The association relationship, and/or the association relationship between the third data packet and the second data packet.
  • acquiring the first configuration information may be either receiving the first configuration information from the outside, or generating the first configuration information internally.
  • the transceiver unit is specifically configured to send the first feedback information and the second feedback information to the first device after receiving the first feedback information and the second feedback information from the first device.
  • the first feedback information is used to indicate that the first data packet is not successfully received
  • the second feedback information is used to indicate that the second data packet is not successfully received.
  • a communication apparatus is provided, and the apparatus is a first device or a module (eg, a chip) configured in (or used for) the first device.
  • the communication device includes: a transceiver unit for receiving a first data packet and a second data packet from a second device, where the first data packet includes at least one first data packet obtained by modulating a first code word according to a first modulation mode modulation symbols, the second data packet includes at least one second modulation symbol obtained by modulating the second codeword according to the second modulation mode; the transceiver unit is further configured to receive a third data packet from the second device, the first The three data packets include at least one third modulation symbol, the third modulation symbol is obtained by modulating a bit group according to the third modulation mode, and the one bit group includes at least one bit in the first code word and the second code at least one bit in the word; a processing unit for decoding the first data packet, the second data packet and the third data packet.
  • the first modulation mode corresponds to a first constellation diagram
  • each constellation point in the first constellation diagram includes M bits
  • the second modulation mode corresponds to the first constellation diagram.
  • Two constellation diagrams each constellation point in the second constellation diagram includes Q bits
  • the third modulation scheme corresponds to the third constellation diagram
  • each constellation point in the third constellation diagram includes N bits, wherein M, Q and N are positive integers.
  • the first modulation method is a quadrature amplitude modulation QAM with a modulation order of M, and only 1 is between two adjacent constellation points in the first constellation diagram.
  • the bits have different values, and/or the second modulation mode is quadrature amplitude modulation QAM with a modulation order of Q, and only 1 bit value is different between two adjacent constellation points in the second constellation diagram.
  • each constellation point in the third constellation diagram includes a first position and a second position, and the bits in the first codeword are constellated according to the first position.
  • Point mapping the bits in the second codeword are mapped to constellation points according to the second position, wherein the first position includes P bits among the N bits, and the second position includes NP among the N bits bits, P and N are positive integers and P ⁇ N.
  • the decoding of the first data packet, the second data packet and the third data packet includes: combining the at least one first modulation symbol and the Decoding is performed after the information corresponding to the first position in the at least one third modulation symbol; and the decoding is performed after combining the at least one second modulation symbol and the information corresponding to the second position in the at least one third modulation symbol.
  • the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same first position value in the third constellation diagram is greater than the constellation point in the second constellation diagram. and/or, the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same second position value in the third constellation map is greater than the minimum Euclidean distance between the constellation points in the first constellation map.
  • the first codeword includes L bits in total
  • the second codeword includes K bits in total
  • the third data packet includes the third modulation symbols
  • the third data packet further includes bits and the remaining K bits modulation symbols obtained by bit modulation.
  • the first codeword includes L bits in total
  • the second codeword includes K bits in total. If L>K, the third data packet includes the 2K/N of the third modulation symbols obtained by modulating K bits in the first codeword and K bits in the second codeword by the third modulation method, and the third data packet further includes The modulation symbol obtained by modulating the remaining (LK) bits in the first code word by the modulation mode or the third modulation mode; or, if L ⁇ K, the third data packet includes the modulation symbol of the first code according to the third modulation mode.
  • the 2L/N third modulation symbols obtained by modulating the L bits in the word and the L bits in the second codeword, and the third data packet further includes a pair of pairs according to the second modulation scheme or the third modulation scheme. Modulation symbols obtained by modulating the remaining (KL) bits in the second codeword.
  • the transceiver unit is further configured to acquire first configuration information, where the first configuration information is used to indicate a connection between the third data packet and the first data packet The association relationship, and/or the association relationship between the third data packet and the second data packet.
  • acquiring the first configuration information may be either receiving the first configuration information from the outside, or generating the first configuration information internally.
  • the transceiver unit is specifically configured to receive the third feedback information from the second device after sending the first feedback information and the second feedback information to the second device A data packet, wherein the first feedback information is used to indicate that the first data packet is not successfully received, and the second feedback information is used to indicate that the second data packet is not successfully received.
  • a communication apparatus including a processor.
  • the processor may implement the first aspect and the method in any possible implementation manner of the first aspect.
  • the communication device further includes a memory
  • the processor is coupled to the memory and can be configured to execute instructions in the memory, so as to implement the first aspect and the method in any possible implementation manner of the first aspect.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, which are not limited.
  • the communication apparatus is a terminal device or a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication apparatus is a chip configured in a terminal device or a network device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication apparatus including a processor.
  • the processor may implement the method in the second aspect and any possible implementation manner of the second aspect.
  • the communication device further includes a memory
  • the processor is coupled to the memory and can be configured to execute instructions in the memory, so as to implement the second aspect and the method in any possible implementation manner of the second aspect.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, which are not limited.
  • the communication apparatus is a terminal device or a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication apparatus is a chip configured in a terminal device or a network device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • an embodiment of the present application provides a communication device, comprising: a logic circuit and a communication interface, wherein the communication interface is used for acquiring data to be processed and/or outputting the processed data, the logic circuit is used for The data to be processed is processed to make the communication device perform the method of the first aspect or the second aspect and any one of the possible implementations of the first aspect or the second aspect.
  • the communication interface includes an input interface and an output interface.
  • the logic circuit is configured to process a first codeword to obtain a first data packet, and process a second codeword to obtain a second data packet, where the first data packet includes a At least one first modulation symbol is obtained by modulation, and the second data packet includes at least one second modulation symbol obtained by modulating the second code word according to the second modulation mode;
  • the communication interface is used for outputting the first data packet and the second data packet;
  • the logic circuit is further configured to process the first codeword and the second codeword to obtain a third data packet, the third data packet includes at least one third modulation symbol, one of the third modulation symbols is based on the third modulation It is obtained by modulating a bit group in a manner that includes at least one bit in the first codeword and at least one bit in the second codeword;
  • the communication interface is further configured to output the third data packet.
  • the communication interface is configured to input the first data packet and the second data packet, where the first data packet includes at least one first modulation symbol obtained by modulating the first codeword according to the first modulation mode , the second data packet includes at least one second modulation symbol obtained by modulating the second code word according to the second modulation mode; the communication interface is also used to input a third data packet, and the third data packet includes at least one third modulation symbol , a third modulation symbol is obtained by modulating a bit group according to a third modulation method, and the bit group includes at least one bit in the first codeword and at least one bit in the second codeword; the logic A circuit is used to decode the first data packet, the second data packet and the third data packet.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method of the first aspect or the second aspect and any one of the possible implementations of the first aspect to the fifth aspect .
  • the above-mentioned processor may be one or more chips
  • the input circuit may be input pins
  • the output circuit may be output pins
  • the processing circuit may be transistors, gate circuits, flip-flops, and various logic circuits, etc. .
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processing apparatus including a processor and a memory.
  • the processor is configured to read instructions stored in the memory, and can receive signals through a receiver and transmit signals through a transmitter to perform the first aspect or the second aspect and any possible implementation of the first aspect or the second aspect method in .
  • the processor is one or more, and the memory is one or more.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • the data output by the processor can be output to the transmitter, and the input data received by the processor can be from the receiver.
  • the transmitter and the receiver may be collectively referred to as a transceiver.
  • the processing device in the ninth aspect above may be one or more chips.
  • the processor in the processing device may be implemented by hardware or by software.
  • the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, implemented by reading software codes stored in a memory, which can Integrated in the processor, can be located outside the processor, independent existence.
  • a computer program product comprising: a computer program (also referred to as code, or instructions), which, when the computer program is executed, causes the computer to execute the above-mentioned first aspect or the second aspect and the method in any possible implementation manner of the first aspect or the second aspect.
  • a computer program also referred to as code, or instructions
  • a computer-readable medium is provided, the computer-readable medium is stored with a computer program (also referred to as code, or instruction) when it is run on a computer, causing the computer to execute the first aspect or the first aspect above.
  • a computer program also referred to as code, or instruction
  • a communication system which includes the aforementioned first device and the second device.
  • FIG. 1 is a schematic structural diagram of a communication system applicable to an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a data transmission method provided by an embodiment of the present application.
  • 3 is a constellation diagram of QPSK provided by an embodiment of the present application.
  • 4 is a constellation diagram of 16QAM provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a third constellation diagram provided by an embodiment of the present application.
  • FIG. 6 is another schematic diagram of a third constellation diagram provided by an embodiment of the present application.
  • FIG. 7 is another schematic flowchart of the data transmission method provided by the embodiment of the present application.
  • FIG. 8 is a schematic diagram of an application scenario applicable to the data transmission method provided by the present application.
  • FIG. 9 is a schematic block diagram of an example of a communication device of the present application.
  • FIG. 10 is a schematic structural diagram of an example of a terminal device of the present application.
  • FIG. 11 is a schematic structural diagram of an example of a network device of the present application.
  • the communication method provided by this application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, 5th generation (5G) mobile communication system or new wireless access Technology (new radio access technology, NR).
  • the 5G mobile communication system may include a non-standalone (NSA, NSA) and/or an independent network (standalone, SA).
  • the communication method provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system. This application does not limit this.
  • the communication method provided in this application can also be applied to machine type communication (MTC), long term evolution technology (LTE), device to device (device to device, D2D) network, machine to machine (machine to machine, M2M) network, Internet of things (Internet of things, IoT) network or other network.
  • the IoT network may include, for example, the Internet of Vehicles.
  • the communication methods in the Internet of Vehicles system are collectively referred to as vehicle to everything (V2X).
  • the V2X may include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (vehicle to infrastructure) , V2I) communication, vehicle-to-pedestrian (V2P) or vehicle-to-network (V2N) communication, etc.
  • the network device may be a device with a wireless transceiver function.
  • Network equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc.
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home base station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • It can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, Such as baseband unit (BBU), or distributed unit (distributed unit, DU) and so on.
  • BBU baseband unit
  • DU distributed unit
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) layer function.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC medium access control
  • PHY physical layer.
  • AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas.
  • the higher-layer signaling such as the RRC layer signaling
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.
  • a terminal device may also be referred to as a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user equipment.
  • user equipment user equipment
  • UE user equipment
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user equipment.
  • the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some examples of terminals can be: mobile phone (mobile phone), tablet computer (pad), computer with wireless transceiver function (such as notebook computer, palmtop computer, etc.), mobile internet device (mobile internet device, MID), virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control (industrial control), wireless terminals in unmanned driving (self driving), wireless terminals in remote medical (remote medical) Terminal, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless Telephone, session initiation protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device, computing device or connection with wireless communication capabilities
  • wearable devices can also be called wearable smart devices, which is a general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may also be a terminal device in an internet of things (Internet of things, IoT) system.
  • IoT Internet of things
  • IoT is an important part of the development of information technology in the future. Its main technical feature is to connect items to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
  • IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.
  • NB narrow band
  • terminal equipment can also include sensors such as smart printers, train detectors, and gas stations.
  • the main functions include collecting data (part of terminal equipment), receiving control information and downlink data of network equipment, and sending electromagnetic waves to transmit uplink data to network equipment. .
  • the communication system 100 may include at least one network device, such as the network device 101 in FIG. 1 ; the communication system 100 may also include at least one terminal device, such as the terminal devices 102 to 107 in FIG. 1 .
  • the terminal devices 102 to 107 may be mobile or stationary.
  • Each of the network device 101 and one or more of the end devices 102 to 107 may communicate over a wireless link.
  • the data transmission method provided in the embodiment of the present application may be used for data transmission between the network device and the terminal device.
  • direct communication between terminal devices is possible.
  • D2D technology can be used to realize direct communication between terminal devices.
  • D2D technology can be used for direct communication between terminal devices 105 and 106 and between terminal devices 105 and 107 .
  • Terminal device 106 and terminal device 107 may communicate with terminal device 105 individually or simultaneously.
  • the data transmission method provided by the embodiment of the present application may be used for data transmission.
  • Fig. 1 exemplarily shows a network device and a plurality of terminal devices, as well as the communication links between the communication devices.
  • the communication system 100 may include multiple network devices, and the coverage of each network device may include other numbers of terminal devices, such as more or less terminal devices. This application does not limit this.
  • this application proposes that the sender sends a retransmission data packet after sending multiple data packets, and retransmits each modulation symbol in the data packet. Include data bits from at least two previously transmitted data packets.
  • the retransmitted data packet can be demodulated and decoded in the presence of prior information.
  • the receiving end can combine reception and improve the signal to noise ratio (SNR) of the data packet, the probability of successful decoding of the data packet is further improved, and the reliability of data transmission is improved.
  • SNR signal to noise ratio
  • the embodiment of the present application also provides a constellation diagram design scheme of a modulation method.
  • the Euclidean distance between two adjacent constellation points is at least greater than the same modulation order.
  • FIG. 2 is a schematic flowchart of a data transmission method provided by an embodiment of the present application.
  • the first device and the second device may use the embodiment shown in FIG. 2 for data transmission, the first device may be a network device or a terminal device, and the second device may also be a network device or a terminal device, which is not limited in this application .
  • S210 The second device modulates the first codeword according to the first modulation mode to obtain at least one first modulation symbol.
  • the second device modulates the first codeword according to the first modulation scheme, and the first modulation scheme obtains one modulation symbol for every M bits. If the first codeword includes L bits, the second device modulates the first codeword according to the first modulation mode to obtain L/M first modulation symbols, where L ⁇ M, and L and M are positive integers.
  • the first modulation mode corresponds to a first constellation diagram, and each constellation point in the first constellation diagram includes M bits.
  • the first constellation map is a Gray constellation map.
  • the first modulation method is quadrature phase shift keying (QPSK), and the first constellation diagram can be shown in Figure 3, where the horizontal axis represents the in-phase (in-phase) component I, and the vertical axis represents the in-phase component I. The axis represents the quadrature component Q.
  • the first modulation mode is quadrature amplitude modulation (quadrature amplitude modulation) with a modulation order of 4, that is, 16QAM, and the first constellation diagram may be as shown in FIG. 4 .
  • the first modulation mode may also be other modulation modes such as 256QAM and 1024QAM, which are not limited in this application.
  • the first constellation map is a Gray constellation map
  • only one bit differs in value between two adjacent constellation points in the first constellation map.
  • the second device sends a first data packet to the first device, where the first data packet includes the at least one first modulation symbol.
  • the first device receives the first data packet from the second device.
  • the first data packet includes L/M first modulation symbols obtained by modulating the first codeword by the second device according to the first modulation mode.
  • the second device modulates the second codeword according to the second modulation mode to obtain at least one second modulation symbol.
  • the second device modulates the second codeword according to the second modulation scheme, and the second modulation scheme obtains one modulation symbol for every Q bits.
  • the second codeword includes K bits, and the second device modulates the second codeword according to the second modulation mode to obtain K/Q second modulation symbols, where K ⁇ Q, and K and Q are positive integers.
  • first codeword and the second codeword may be generated by the same channel coding mode, or may be generated by different channel coding modes, which are not limited in this application.
  • the second modulation mode corresponds to a second constellation diagram, and each constellation point in the second constellation diagram includes Q bits.
  • the second constellation map is a Gray constellation map.
  • the second modulation scheme is QPSK as shown in FIG. 3 .
  • the second modulation mode is 16QAM as shown in FIG. 4 .
  • the second modulation mode may also be other modulation modes such as 256QAM and 1024QAM, which are not limited in this application.
  • the second constellation map is a Gray constellation map
  • only one bit differs in value between two adjacent constellation points in the second constellation map.
  • the second device may send the first data packet first, and then send the second data packet in time sequence.
  • the second device sends the first data packet in the first time period and sends the second data packet in the second time period, but the present application is not limited thereto.
  • the second device may send the first data packet and the second data packet respectively at different frequency domain resource locations in the same time period.
  • the first device and the second device communicate in a carrier aggregation (carrier aggregation, CA) manner, and the first data packet and the second data packet are carried on different carriers within the same time period.
  • the first data packet and the second data packet may be carried on different bandwidth parts of the same carrier, but the present application is not limited thereto.
  • the second device sends a second data packet to the first device, where the first data packet includes the at least one second modulation symbol.
  • the first device receives the second data packet from the second device.
  • the second data packet includes K/Q second modulation symbols obtained by the second device modulating the second codeword according to the second modulation mode.
  • the second device obtains at least one third modulation symbol according to the third modulation mode.
  • a third modulation symbol includes at least one bit in the first codeword and at least one bit in the second codeword.
  • a third modulation symbol is obtained by the second device modulating a bit group according to the third modulation mode, and a bit group includes N bits, and the N bits include at least one bit in the first codeword and For at least one bit in the second codeword, N is a positive integer greater than or equal to 2.
  • the first device when the first device can combine the information of the first codeword in the first data packet and the retransmitted data packet, and combine the information of the second codeword in the second data packet and the retransmitted data packet, when the first When at least one of the data packet and the second data packet is successfully decoded, the third data packet can be demodulated and decoded in the presence of prior information.
  • the SNR requirement when decoding the data packet can be reduced, the decoding can be successfully performed with a lower SNR, the probability of successful decoding of the data packet is improved, and the reliability of data transmission is improved.
  • the third modulation mode corresponds to a third constellation diagram, and each constellation point in the third constellation diagram includes N bits.
  • the N bits of each constellation point include a first position and a second position
  • the bits in the first codeword are mapped to the constellation points according to the first position
  • the bits in the second codeword are according to the second position.
  • Constellation point mapping is performed, wherein the first position includes P bits among the N bits, the second position includes NP bits among the N bits, and P is a positive integer smaller than N.
  • the 4-bit bits of each constellation point are sequentially denoted as S 0 , S 1 , S 2 , and S 3 .
  • the first position may include S 0 and S 1
  • the second position may include S 2 and S 3 .
  • the first codeword performs constellation point mapping according to S 0 and S 1
  • the second code word performs constellation point mapping according to S 2 and S 3 . If the second device decodes the first codeword but fails to decode the second codeword.
  • the second device can demodulate the third data packet by using the first codeword as a priori information to obtain more accurate demodulation information of the second codeword in the third data packet.
  • the probability of successful decoding of one modulation symbol changes from 1/16 to 1/4.
  • the first two bits of the 4 bits corresponding to a modulation symbol are 00
  • the modulation symbol is originally corresponding to one of the 16 constellation points in the constellation diagram, and the range is reduced to the value corresponding to the Q axis. 4 points of 2A, namely 0010, 0011, 0001, 0000.
  • the probability that the second device successfully decodes the second codeword is improved.
  • the same processing method can also be adopted for the second device decoding to obtain the second codeword but failing to successfully decode the first codeword.
  • first position and the second position may be set according to the specific implementation, which is not limited in this application.
  • the first position may be S 0 and S 2
  • the second position may be S 1 , S 3
  • the first position may be S 0 , S 1 , S 2
  • the second position may be S 3 .
  • the above example is described by taking one third modulation symbol including bits in two data packets as an example, but the present application is not limited to this, and one third modulation symbol may also include more bits in data packets.
  • the data packets are similar, and for the sake of brevity, they are not repeated here.
  • the minimum Euclidean distance between the constellation points in the plurality of constellation points with the same first position value in the third constellation diagram is greater than the minimum Euclidean distance between the constellation points in the second constellation diagram; and/or, the third constellation diagram The minimum Euclidean distance between the constellation points among the plurality of constellation points in which the second position takes the same value is greater than the minimum Euclidean distance between the constellation points in the second constellation diagram.
  • the Euclidean distance between two closest constellation points among the multiple constellation points may be referred to as the minimum Euclidean distance between the constellation points among the multiple constellation points.
  • the minimum Euclidean distance between the constellation points in the constellation diagram of QPSK is In the constellation diagram of 16QAM shown in Figure 4, the Euclidean distance between the two nearest constellation points is Then the minimum Euclidean distance between the constellation points in the 16QAM constellation diagram is
  • the minimum Euclidean distance between constellation points is increased, which can reduce the SNR requirement when decoding data packets, successfully decode with a lower SNR, and improve the probability of successful decoding.
  • the first modulation scheme and the second modulation scheme may be QPSK
  • the third constellation diagram may be the constellation diagram shown in FIG. 5
  • the bits are denoted as S 0 and S 1 in turn.
  • the first position may be S 0 and the second position may be S 1
  • the second position may be S 0 and the first position may be S 1 .
  • the constellation points with S 0 value of 1 are 11 and 10, and the Euclidean distance between the two constellation points is 2, which is greater than the minimum Euclidean distance between the constellation points in the constellation diagram of QPSK And, the constellation points with S 0 value of 0 are 00 and 01, the Euclidean distance between the two constellation points is 2, which is greater than the minimum Euclidean distance between the constellation points in the constellation diagram of QPSK
  • the first modulation mode and/or the second modulation mode may also be 16QAM, 64QAM and other minimum Euclidean distances less than 2.
  • the third constellation diagram may also be a constellation diagram corresponding to one of the eight matrices shown in Table 1, but the present application is not limited thereto.
  • one matrix corresponds to one constellation.
  • a value in a matrix is the decimal value corresponding to a binary constellation point in the constellation diagram corresponding to the matrix.
  • the matrix corresponding to the constellation diagram shown in Figure 5 is
  • the minimum Euclidean distance between the constellation points among the four constellation points with the same first position value is For example, among the four constellation points 0000, 0001, 0010, and 0011 where the S 0 S 1 of the first position is 00, the distance between the constellation points 0001 and 0000 and the distance between the constellation points 0011 and 0010 are the constellation points The distance between 0001 and 0011 and the distance between 0000 and 0010 is 4A.
  • the minimum Euclidean distance between the 4 constellation points is in addition, the minimum Euclidean distance among the 4 constellation points whose value is 01 , the minimum Euclidean distance among the 4 constellation points whose value is 10 , and the minimum Euclidean distance among the 4 constellation points whose value is 11
  • the minimum Euclidean distance of Similarly, the minimum Euclidean distance between the constellation points among the four constellation points with the same second position value is also That is to say, the minimum Euclidean distance among the four constellation points corresponding to any value of 00, 01, 10, and 11 for the second position is
  • the first modulation mode and/or the second modulation mode may be 16QAM, 64QAM or 256QAM and other minimum Euclidean distances less than modulation method.
  • the third constellation diagram may also be a constellation diagram corresponding to one of the eight matrices shown in Table 2, but the present application is not limited thereto.
  • one matrix corresponds to one constellation.
  • a value in a matrix is the decimal value corresponding to a binary constellation point in the constellation diagram corresponding to the matrix.
  • the matrix corresponding to the constellation diagram shown in Figure 6 is
  • the solutions of the embodiments of the present application are described above with reference to the example of the third constellation diagram.
  • the third constellation diagram may also be other constellation diagrams that meet the conditions. For the sake of brevity, examples are not described here in detail.
  • the second device modulates the L bits of the first codeword and the K bits of the second codeword according to the third modulation method, where the first position includes P bits, and the L bits can be composed of A third modulation symbol, the second position includes NP bits, then K bits can be composed of Then the second device can obtain according to the third modulation method the third modulation symbol.
  • the second device may bits and the remaining K bits bits are modulated to obtain R modulation symbols.
  • the R modulation symbols are obtained by modulation according to a third modulation mode.
  • the third modulation symbols and the R modulation symbols may form a third data packet. That is, the third data packet includes modulation symbols obtained by modulating all bits of the first codeword and the second codeword.
  • the third modulation symbols and the R modulation symbols may form multiple data packets, which are respectively sent by the second device to the first device, and the multiple data packets include the third data packet.
  • only at least one third modulation symbol is included in the third data packet.
  • the L bits of the first codeword can be composed of
  • the K bits of the second codeword can be composed of Therefore, the second device can obtain 29 third modulation symbols according to the third modulation method.
  • the second device uses the third modulation method to modulate the remaining bits.
  • a device and a second device perform modulation in a manner that reaches a consensus, which is not limited in this application.
  • the second device sends a third data packet to the first device, where the third data packet includes the at least one third modulation symbol.
  • the first device receives the third data packet from the second device.
  • the second device acquires first configuration information, where the first configuration information is used to indicate the association relationship between the third data packet and the first data packet, and/or is used to indicate the third data packet The association relationship between the package and the second data package.
  • the second device determines the association relationship according to the first configuration information.
  • the first configuration information is control information or a radio resource control (radio resource control, RRC) message.
  • RRC radio resource control
  • control information may be downlink control information (downlink control information, DCI) sent by the network device to the terminal device, or may be sidelink control information (sidelink control information (sidelink) between two terminal devices using a D2D communication mode.
  • DCI downlink control information
  • SCI sidelink control information
  • acquiring information/data may be receiving information/data from outside, or generating information/data internally.
  • acquiring first configuration information may be receiving first configuration information from outside, or it may be The first configuration information is generated internally.
  • the association relationship between the third data packet and the first data packet and/or the second data packet is determined by the first device, and the first device sends the first configuration information to the second device.
  • Obtaining the first configuration information by the second device means that the second device receives the first configuration information from the first device.
  • the association relationship between the third data packet and the first data packet and/or the second data packet is determined by a second device, and the second device internally generates the first configuration information, and when generating the third data packet It is determined according to the first configuration information that the third data packet includes bits of the first codeword and bits of the second codeword.
  • the second device may also send the first configuration information to the first device, so that the first device and the second device reach a consensus on the relationship between the third data packet and the first data packet and/or the second data packet.
  • the first configuration information is DCI.
  • the terminal device After the network device determines the association between the third data packet and the first data packet and/or the second data packet, the terminal device is notified through DCI that the second device is the network device. , the first device is a terminal device, and after the DCI is generated internally by the second device, the DCI is sent to the first device. Or, if the second device is a terminal device and the first device is a network device, the second device receives the DCI from the network device to obtain the association between the third data packet and the first data packet and/or the second data packet relation.
  • the first data packet, the second data packet and the third data packet are sent in time sequence, and the DCI may indicate a time interval between the third data packet and the first data packet and/or the second data packet.
  • the DCI may indicate that the third data packet is the same as the third data packet.
  • the frequency domain location relationship between a data packet and/or a second data packet is not limited to this.
  • the first configuration information is a DCI used to schedule the third data packet
  • the DCI includes a HARQ process indication field.
  • the HARQ process indication field indicates the first HARQ process and the second HARQ process.
  • the first HARQ process corresponds to the first data packet
  • the second HARQ process corresponds to the second data packet, indicating that the third data packet includes bits in the first codeword and bits in the second codeword.
  • the first indication field includes an identification of the first HARQ process (eg, HARQ ID1) and an identification of the second HARQ process (eg, HARQ ID2), or the first indication field includes an index value, the index The value corresponds to the first HARQ process and the second HARQ process.
  • the network may configure an index table in advance, and each index value in the index table corresponds to two HARQ processes, but the present application is not limited to this.
  • the first codeword and the second codeword may be codewords of URLLC service data, and the first data packet, the second data packet, and the third data packet are carried on the configuration authorization (or scheduling-free authorization) resource, which ensures that Reliability and delay requirements of URLLC services.
  • the second device after the second device sends the first data packet and the second data packet, and receives the first feedback information and the second feedback information from the first device, the second device sends the first device to the first device.
  • the third data packet is sent.
  • the first feedback information indicates that the first data packet is not successfully received
  • the second feedback information indicates that the second data packet is not successfully received.
  • the first device decodes the first data packet, the second data packet and the third data packet.
  • decoding a data packet includes at least demodulating or demodulating the modulation symbols in the data packet.
  • the decoding may also include de-channel coding or decoding, which is not limited in this application.
  • the first device may decode the first data packet after receiving the first data packet, decode the second data packet after receiving the second data packet, and the If one data packet is successfully decoded, the successfully decoded data packet is combined with the third data packet and then decoded.
  • the first device decodes the first data packet and the second data packet respectively, the first data packet is not successfully decoded, and the second data packet is successfully decoded to obtain the second codeword, the first device can decode the third data packet according to the second codeword
  • the third modulation symbol in the packet is demodulated to obtain the soft information of the first code word corresponding to the first position, and is combined with the soft information of the first code word obtained by demodulation of the first data packet and then decoded, which improves the The probability of successfully decoding the first codeword.
  • the first device fails to decode the first data packet to obtain the first codeword, and sends the first feedback information to the second device, and the first device fails to decode the second data packet to obtain the second codeword, and sends the second codeword to the second device.
  • Send second feedback information After receiving the first feedback information and the second feedback information, the second device sends a third data packet to the first device.
  • the first device demodulates the third data packet, and combines the soft information of the first codeword corresponding to the first position with the soft information of the first codeword obtained by demodulating the first data packet. to decode.
  • the soft information of the second codeword corresponding to the second position obtained by demodulation of the third data packet by the first device is combined with the soft information of the second codeword obtained by demodulation of the second data packet and then decoded. Obtaining a higher SNR value of the codeword increases the probability of decoding. If the first device successfully decodes one of the codewords but fails to decode the other codeword, the first device can also use the successfully decoded codeword as a priori information to demodulate the third data packet to obtain The soft information of the unsuccessfully decoded codeword is more accurate, and the probability of successful decoding is further improved.
  • the second device may combine the data information in the first data packet with the related information of the first codeword in the third data packet for decoding, and combine the second data packet The data information in the third data packet is decoded with the relevant information of the second codeword in the third data packet.
  • the receiving end can reduce the SNR requirement for decoding the data packets under the condition that the receiving end can receive combined data, successfully decode the data packets with a lower SNR, and improve the probability of successful decoding of the data packets, thereby improving the reliability of data transmission.
  • FIG. 7 is another schematic flowchart of a data transmission method provided by an embodiment of the present application.
  • the first device receives a data packet A, where the data packet A includes a modulation symbol A obtained by modulating the codeword A according to the modulation mode A.
  • the modulation scheme A corresponds to the constellation diagram A.
  • S720 The first device receives a data packet B, where the data packet B includes at least one modulation symbol B obtained according to the modulation mode B, and one modulation symbol B includes at least one bit of codeword A and at least one bit of codeword B.
  • modulation mode B corresponds to constellation diagram B.
  • Each constellation point in constellation B includes N bits.
  • the N bits of each constellation point include a first position and a second position
  • the bits in the codeword A are mapped to the constellation points according to the first position
  • the bits in the codeword B are constellated according to the second position.
  • Point mapping wherein the first position includes P bits among the N bits
  • the second position includes NP bits among the N bits
  • P is a positive integer smaller than N.
  • the first device decodes the data packet A and the data packet B.
  • the first device decodes the data packet A to obtain the code word A, and uses the code word A as the prior information to decode the data packet B to obtain the code word B.
  • the codeword A is obtained by decoding, and the codeword A is used as the prior information to demodulate the data packet B to obtain a more accurate codeword B.
  • the codeword B is obtained by decoding.
  • the data packet A and the data packet B may come from the same device, for example, the data packet A and the data packet B are both sent by the second device. Alternatively, the packet A and the packet B may come from different devices.
  • the embodiment shown in FIG. 7 can be applied to the scenario shown in FIG. 8 , the terminal device 2 executes sending the data packet A at the first moment, the network device (ie the first device) executes S710 to receive the data packet A, and the terminal device 2 executes S710 to receive the data packet A.
  • Device 1 also receives the data packet A and decodes the codeword A.
  • the terminal device 1 uses modulation mode B to modulate the codeword A of the terminal device 2 and the codeword B of the terminal device 1 to obtain at least one modulation symbol B, and sends a data packet B to the network device, where the data packet B includes the at least one modulation symbol B. symbol B.
  • the network device can combine the data packet A and the data packet B to decode the codeword A to obtain a higher SNR of the codeword A, and improve the probability of the successful decoding of the codeword A.
  • the codeword B in the data packet B can also be decoded by using the codeword A as the prior information, but the present application is not limited to this.
  • the receiving end can reduce the SNR requirement when decoding the data packet under the condition that the receiving end can receive it in combination, successfully decode the data packet with a lower SNR, and improve the probability of successful decoding of the data packet, thereby improving the reliability of data transmission.
  • FIG. 9 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus 900 may include a processing unit 910 and a transceiver unit 920 .
  • the communication apparatus 900 may correspond to the first device in the above method embodiments, or a chip configured (or used for) in the first device, or other methods capable of implementing the first device device, module, circuit or unit, etc.
  • the communication apparatus 900 may correspond to the first device in the methods 200 and 700 according to the embodiments of the present application, and the communication apparatus 900 may include the first device for executing the methods 200 and 700 in FIG. 2 and FIG. 7 .
  • each unit in the communication device 900 and the above-mentioned other operations and/or functions are to implement the corresponding processes of the methods 200 and 700 in FIG. 2 and FIG. 7 , respectively.
  • the transceiver unit 920 in the communication apparatus 900 may be an input/output interface or circuit of the chip, and the The processing unit 910 may be a processor in a chip.
  • the communication apparatus 900 may further include a processing unit 910, and the processing unit 910 may be configured to process instructions or data to implement corresponding operations.
  • the communication device 900 may further include a storage unit 930, the storage unit 930 may be used to store instructions or data, and the processing unit 910 may execute the instructions or data stored in the storage unit, so as to enable the communication device to implement corresponding operations .
  • the communication apparatus 900 may correspond to the second device in the above method embodiments, or a chip configured (or used for) in the second device, or other methods capable of implementing a network device device, module, circuit or unit, etc.
  • the communication apparatus 900 may correspond to the second device in the method 200 according to the embodiment of the present application.
  • the communication apparatus 900 may include means for performing the method performed by the second device in the method 200 in FIG. 2 .
  • each unit in the communication device 900 and the other operations and/or functions mentioned above are respectively for realizing the corresponding flow of the method 200 in FIG. 2 .
  • the transceiver unit in the communication device 900 is an input/output interface or circuit in the chip, and the processing in the communication device 900 Unit 910 may be a processor in a chip.
  • the communication apparatus 900 may further include a processing unit 910, and the processing unit 910 may be used to process instructions or data to implement corresponding operations.
  • the communication apparatus 900 is a terminal device or is configured in a terminal device.
  • the transceiver unit 920 in the communication apparatus 900 may correspond to the transceiver 1010 in the terminal device 1000 shown in FIG. 10
  • the storage unit 930 may correspond to the memory in the terminal device 1000 shown in FIG. 10 . .
  • FIG. 10 is a schematic structural diagram of a terminal device 1000 provided by an embodiment of the present application.
  • the terminal device 1000 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiments.
  • the terminal device 1000 includes a processor 1020 and a transceiver 1010 .
  • the terminal device 1000 further includes a memory.
  • the processor 1020, the transceiver 1010 and the memory can communicate with each other through an internal connection path to transmit control and/or data signals, the memory is used to store computer programs, and the processor 1020 is used to execute the computer in the memory. program to control the transceiver 1010 to send and receive signals.
  • the above-mentioned processor 1020 and the memory can be combined into a processing device, and the processor 1020 is configured to execute the program codes stored in the memory to realize the above-mentioned functions.
  • the memory may also be integrated in the processor 1020 or independent of the processor 1020 .
  • the processor 1020 may correspond to the processing unit in FIG. 6 .
  • the transceiver 1010 described above may correspond to the transceiver unit in FIG. 9 .
  • the transceiver 1010 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used for receiving signals, and the transmitter is used for transmitting signals.
  • the terminal device 1000 shown in FIG. 10 can implement the processes involving the terminal device in the method embodiments shown in FIG. 2 and FIG. 7 .
  • the operations and/or functions of each module in the terminal device 1000 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the above-mentioned processor 1020 may be used to perform the actions described in the foregoing method embodiments that are implemented inside the terminal device, and the transceiver 1010 may be used to perform the actions described in the foregoing method embodiments that the terminal device sends to or receives from the network device. action.
  • the transceiver 1010 may be used to perform the actions described in the foregoing method embodiments that the terminal device sends to or receives from the network device. action.
  • the above-mentioned terminal device 1000 may further include a power supply for providing power to various devices or circuits in the terminal device.
  • the terminal device 1000 may further include one or more of an input unit, a display unit, an audio circuit, a camera, a sensor, etc., and the audio circuit may also include a speaker, microphone, etc.
  • the communication apparatus 900 is a network device or is configured in a network device.
  • the transceiver unit 920 in the communication apparatus 900 may correspond to the transceiver 1110 in the network device 1100 shown in FIG. 11
  • the storage unit 930 may correspond to the memory in the terminal device 1120 shown in FIG. 11 . .
  • FIG. 11 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device 1100 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiments.
  • it may be a schematic diagram of a related structure of a network device.
  • the network device 1100 shown in FIG. 11 can implement various processes involving the network device in the method embodiments shown in FIG. 2 and FIG. 7 .
  • the operations and/or functions of each module in the network device 1100 are respectively to implement the corresponding processes in the foregoing method embodiments.
  • the network device 1100 shown in FIG. 11 may be an eNB or a gNB.
  • the network device includes CU, DU, and AAU network devices.
  • the CU may be specifically divided into CU-CP and CU-CP. UP. This application does not limit the specific architecture of the network device.
  • the network device 1100 shown in FIG. 11 may be a CU node or a CU-CP node.
  • An embodiment of the present application further provides a processing apparatus, including a processor and a (communication) interface; the processor is configured to execute the method in any of the above method embodiments.
  • the above-mentioned processing device may be one or more chips.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or a It is a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • MCU microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • An embodiment of the present application further provides a communication device, including: a logic circuit and a communication interface, wherein the communication interface is used to acquire data to be processed and/or output the processed data, and the logic circuit is used to process the data to be processed The data or processed data is obtained, so that the communication device executes the method in the embodiments shown in FIG. 2 and FIG. 7 .
  • the communication interface includes an input interface and an output interface.
  • the logic circuit is configured to process a first codeword to obtain a first data packet, and process a second codeword to obtain a second data packet, where the first data packet includes a At least one first modulation symbol is obtained by modulation, and the second data packet includes at least one second modulation symbol obtained by modulating the second code word according to the second modulation mode;
  • the communication interface is used for outputting the first data packet and the second data packet (that is, the processed data);
  • the logic circuit is further configured to process the first codeword and the second codeword to obtain a third data packet, the third data packet including at least one third modulation symbol, one of the third The modulation symbol is obtained by modulating a bit group according to the third modulation mode, and the one bit group includes at least one bit in the first codeword and at least one bit in the second codeword;
  • the communication interface is also used for outputting This third data packet (also processed data).
  • the communication interface is used to input the first data packet and the second data packet (ie, data to be processed), and the first data packet includes modulating the first codeword according to the first modulation mode At least one first modulation symbol is obtained, and the second data packet includes at least one second modulation symbol obtained by modulating the second code word according to the second modulation mode; the communication interface is also used for inputting a third data packet (also the data to be processed) ), the third data packet includes at least one third modulation symbol, one of the third modulation symbols is obtained by modulating a bit group according to a third modulation method, and the one bit group includes at least one bit in the first codeword and at least one bit in the second codeword; the logic circuit is used for decoding the first data packet, the second data packet and the third data packet.
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is executed by one or more processors, the device including the processor is made to execute the one shown in FIG. 2 and FIG. 7 . methods in the examples.
  • the present application also provides a computer-readable storage medium, where the computer-readable storage medium stores program codes, when the program codes are executed by one or more processors, the apparatuses including the processors are made to execute FIG. 2 and FIG. 7 . method in the illustrated embodiment.
  • the present application also provides a system including the aforementioned first device and second device.
  • the first device in each of the above apparatus embodiments completely corresponds to the second device and the first device or the second device in the method embodiments, and corresponding steps are performed by corresponding modules or units, for example, a communication unit (transceiver) performs method implementation.
  • a communication unit transmits method implementation.
  • other steps other than sending and receiving can be performed by a processing unit (processor).
  • processors For functions of specific units, reference may be made to corresponding method embodiments.
  • the number of processors may be one or more.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • the embodiments may refer to each other.
  • the methods and/or terms between the method embodiments may refer to each other, such as the functions and/or the device embodiments.
  • terms may refer to each other, eg, functions and/or terms between an apparatus embodiment and a method embodiment may refer to each other.

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Abstract

本申请提供了一种数据传输方法和装置。该方法包括：第一设备接收来自第二设备的第一数据包和第二数据包，该第一数据包中包括第二设备根据第一调制方式对第一码字调制得到的至少一个第一调制符号，该第二数据包包括根据该第二调制方式对第二码字调制得到的至少一个第二调制符号。以及第一设备接收来自该第二设备的第三数据包，该第三数据包包括至少一个第三调制符号，该第三调制符号是第二设备根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特。第一设备对该第一数据包、该第二数据包和该第三数据包进行解码。以期提高数据传输的可靠性。

Description

数据传输方法和装置
本申请要求于2020年09月15日提交中国专利局、申请号为202010967902.8、申请名称为“数据传输方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及一种数据传输方法和装置。
背景技术
随着移动网络普及应用到各行各业中，移动网络需要支持的业务越来越多样化，同时需要满足超高速率、超低时延、超高可靠和/或超多连接等不同的业务需求。传统移动通信中，通过混合自动重传请求(hybrid automatic repeat request,，HARQ)方式由接收端反馈确认响应(acknowledge，ACK)或否定响应(negative acknowledge，NACK)通知发送端数据被成功接收或未被成功接收。然而，这种HARQ反馈方式在一些应用场景中并不适用。例如广播业务场景、多跳中继通信场景、超可靠低时延通信(ultra reliable and low latency communication，URLLC)场景。如广播业务场景中接收设备数量较多时或者多跳中继场景中传输跳数较多时均会导致非常大的反馈开销，在URLLC场景中HARQ反馈方式可能无法满足较高的可靠性及时延需求。
发明内容
本申请提供了一种数据传输方法和装置，以期提高数据传输的可靠性。
第一方面，提供了一种数据传输方法，该方法可以由第二设备或配置于(或用于)第二设备的模块(如芯片)执行，以下以该方法由第二设备执行为例进行说明。
该方法包括：向第一设备发送第一数据包和第二数据包，该第一数据包中包括至少一个第一调制符号，该至少一个第一调制符号是根据第一调制方式对第一码字调制得到的，该第二数据包包括至少一个第二调制符号，该至少一个第二调制符号是根据该第二调制方式对第二码字调制得到的；向该第一设备发送第三数据包，该第三数据包包括至少一个第三调制符号，一个该第三调制符号是根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特。
根据上述方案，第一设备在能够合并第一数据包和重传数据包中第一码字的信息，以及合并第二数据包和重传数据包中的第二码字的信息进行译码，提高了解码成功的概率。并且，当第一数据包和第二数据包中的至少一个数据包解码成功时，可以实现第三数据包在有先验信息的情况下进行解调解码。进一步提高数据包解码成功的概率，进而提高了数据传输的可靠性。
结合第一方面，在第一方面的某些实现方式中，该第一调制方式对应第一星座图，该第一星座图中的每个星座点包括M个比特，该第二调制方式对应第二星座图，该第二星座图中的每个星座点包括Q个比特，该第三调制方式对应第三星座图，该第三星座图中每个 星座点包括N个比特，其中，M、Q、N为正整数。
结合第一方面，在第一方面的某些实现方式中，该第一调制方式为调制阶数为M的正交振幅调制QAM，该第一星座图中相邻两个星座点之间仅1比特取值不同，和/或，该第二调制方式为调制阶数为Q的正交振幅调制QAM，该第二星座图中相邻两个星座点之间仅1比特取值不同。
结合第一方面，在第一方面的某些实现方式中，该第三星座图中每个星座点包括第一位置和第二位置，该第一码字中的比特根据该第一位置进行星座点映射，该第二码字中的比特根据该第二位置进行星座点映射，其中，该第一位置包括该N个比特中的P个比特，该第二位置包括该N个比特中的N-P个比特，P、N为正整数且P＜N。
结合第一方面，在第一方面的某些实现方式中，该第三星座图中该第一位置取值相同的多个星座点中星座点间的最小欧式距离大于第二星座图中星座点间的最小欧式距离；和/或，该第三星座图中该第二位置取值相同的多个星座点中星座点间的最小欧式距离大于第一星座图中星座点间的最小欧式距离。
根据上述方案，星座点之间的最小欧式距离增加，能够降低解码数据包时的SNR需求，以较低SNR成功解码，提高了解码成功的概率。
结合第一方面，在第一方面的某些实现方式中，该第一码字共包括L个比特，该第二码字共包括K个比特，该第三数据包中包括
Figure PCTCN2021113840-appb-000001
个该第三调制符号，以及该第三数据包还包括以对第一码字中剩余的
Figure PCTCN2021113840-appb-000002
个比特和K个比特中剩余的
Figure PCTCN2021113840-appb-000003
个比特调制得到的调制符号。
结合第一方面，在第一方面的某些实现方式中，该第一码字共包括L个比特，该第二码字共包括K个比特，若L＞K，第三数据包中包括根据该第三调制方式对第一码字中的K个比特和第二码字中的K个比特调制得到的2K/N个该第三调制符号，以及该第三数据包还包括根据该第一调制方式或该第三调制方式对该第一码字中剩余(L-K)个比特调制得到的调制符号；或者，若L＜K，第三数据包中包括根据该第三调制方式对第一码字中的L个比特和第二码字中的L个比特调制得到的2L/N个该第三调制符号，以及该第三数据包还包括根据该第二调制方式或该第三调制方式对该第二码字中剩余(K-L)个比特调制得到的调制符号。
结合第一方面，在第一方面的某些实现方式中，该方法还包括：获取第一配置信息，该第一配置信息用于指示该第三数据包与该第一数据包之间的关联关系，和/或，该第三数据包与该第二数据包之间的关联关系。
可选地，获取第一配置信息既可以是从外部接收第一配置信息，也可以是在内部产生第一配置信息。根据上述方案，根据第一配置信息确定第三数据包与第一数据包和/或第二数据包之间的关联关系，从而确定第三数据包根据第一码字和第二码字进行调制。
结合第一方面，在第一方面的某些实现方式中，向该第一设备发送第三数据包，包括：接收到来自该第一设备的第一反馈信息和第二反馈信息后，发送该第三数据包，其中，该第一反馈信息用于指示未成功接收到该第一数据包，该第二反馈信息用于指示是未成功接收到该第二数据包。
根据上述方案，在第一数据包和第二数据包未被成功接收的情况下，发送第三数据包。使得接收端能够将第一数据包与第三数据包中第一码字相应的部分合并后解码，以及将第 二数据包与第三数据包中第二码字相应的部分合并后解码，提高了解码成功的概率。在其中一个码字译码成功的情况下，可以实现第三数据包在有先验信息的情况下对另一个码字解码。进一步提高了码字解码成功的概率，进而提高了数据传输的可靠性。
第二方面，提供了一种数据传输方法，该方法可以由第一设备或配置于(或用于)第一设备的模块(如芯片)执行，以下以该方法由第一设备执行为例进行说明。
该方法包括:接收来自第二设备的第一数据包和第二数据包，该第一数据包中包括根据第一调制方式对第一码字调制得到的至少一个第一调制符号，该第二数据包包括根据该第二调制方式对第二码字调制得到的至少一个第二调制符号；接收来自该第二设备的第三数据包，该第三数据包包括至少一个第三调制符号，该第三调制符号是根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特；对该第一数据包、该第二数据包和该第三数据包进行解码。
结合第二方面，在第二方面的某些实现方式中，该第一调制方式对应第一星座图，该第一星座图中的每个星座点包括M个比特，该第二调制方式对应第二星座图，该第二星座图中的每个星座点包括Q个比特，该第三调制方式对应第三星座图，该第三星座图中每个星座点包括N个比特，其中，M、Q、N为正整数。
结合第二方面，在第二方面的某些实现方式中，该第一调制方式为调制阶数为M的正交振幅调制QAM，该第一星座图中相邻两个星座点之间仅1比特取值不同，和/或，该第二调制方式为调制阶数为Q的正交振幅调制QAM，该第二星座图中相邻两个星座点之间仅1比特取值不同。
结合第二方面，在第二方面的某些实现方式中，该第三星座图中每个星座点包括第一位置和第二位置，该第一码字中的比特根据该第一位置进行星座点映射，该第二码字中的比特根据该第二位置进行星座点映射，其中，该第一位置包括该N个比特中的P个比特，该第二位置包括该N个比特中的N-P个比特，P、N为正整数且P＜N。
结合第二方面，在第二方面的某些实现方式中，该对该第一数据包、该第二数据包和该第三数据包进行解码，包括:合并该至少一个第一调制符号和该至少一个第三调制符号中与该第一位置对应的信息后进行解码；合并该至少一个第二调制符号和该至少一个第三调制符号中与该第二位置对应的信息后进行解码。
结合第二方面，在第二方面的某些实现方式中，该第三星座图中该第一位置取值相同的多个星座点中星座点间的最小欧式距离大于第二星座图中星座点间的最小欧式距离；和/或，该第三星座图中该第二位置取值相同的多个星座点中星座点间的最小欧式距离大于第一星座图中星座点间的最小欧式距离。
结合第二方面，在第二方面的某些实现方式中，该第一码字共包括L个比特，该第二码字共包括K个比特，该第三数据包中包括
Figure PCTCN2021113840-appb-000004
个该第三调制符号，以及该第三数据包还包括以对第一码字中剩余的
Figure PCTCN2021113840-appb-000005
个比特和K个比特中剩余的
Figure PCTCN2021113840-appb-000006
个比特调制得到的调制符号。
结合第二方面，在第二方面的某些实现方式中，该第一码字共包括L个比特，该第二码字共包括K个比特，若L>K，第三数据包中包括根据该第三调制方式对第一码字中的K个比特和第二码字中的K个比特调制得到的2K/N个该第三调制符号，以及该第三数据包还包括根据该第一调制方式或该第三调制方式对该第一码字中剩余(L-K)个比特调制得到 的调制符号；或者，若L＜K，第三数据包中包括根据该第三调制方式对第一码字中的L个比特和第二码字中的L个比特调制得到的2L/N个该第三调制符号，以及该第三数据包还包括根据该第二调制方式或该第三调制方式对该第二码字中剩余(K-L)个比特调制得到的调制符号。
结合第二方面，在第二方面的某些实现方式中，该方法还包括：获取第一配置信息，该第一配置信息用于指示该第三数据包与该第一数据包之间的关联关系，和/或，该第三数据包与该第二数据包之间的关联关系。
可选地，获取第一配置信息既可以是从外部接收第一配置信息，也可以是在内部产生第一配置信息。
结合第二方面，在第二方面的某些实现方式中，向该第一设备发送第三数据包，包括：向该第二设备发送第一反馈信息和第二反馈信息后，接收该第三数据包，其中，该第一反馈信息用于指示未成功接收到该第一数据包，该第二反馈信息用于指示是未成功接收到该第二数据包。
第三方面，提供了一种通信装置，该装置是第二设备或配置于(或用于)第二设备的模块(如芯片)。
该通信装置包括：处理单元，用于根据第一调制方式对第一码字调制得到至少一个第一调制符号，根据第二调制方式对第二码字调制得到至少一个第二调制符号；收发单元，用于向第一设备发送第一数据包和第二数据包，该第一数据包中包括该至少一个第一调制符号，该第二数据包包括该至少一个第二调制符号；该收发单元还用于向该第一设备发送第三数据包，该第三数据包包括至少一个第三调制符号，一个该第三调制符号是根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特。
结合第三方面，在第三方面的某些实现方式中，该第一调制方式对应第一星座图，该第一星座图中的每个星座点包括M个比特，该第二调制方式对应第二星座图，该第二星座图中的每个星座点包括Q个比特，该第三调制方式对应第三星座图，该第三星座图中每个星座点包括N个比特，其中，M、Q、N为正整数。
结合第三方面，在第三方面的某些实现方式中，该第一调制方式为调制阶数为M的正交振幅调制QAM，该第一星座图中相邻两个星座点之间仅1比特取值不同，和/或，该第二调制方式为调制阶数为Q的正交振幅调制QAM，该第二星座图中相邻两个星座点之间仅1比特取值不同。
结合第三方面，在第三方面的某些实现方式中，该第三星座图中每个星座点包括第一位置和第二位置，该第一码字中的比特根据该第一位置进行星座点映射，该第二码字中的比特根据该第二位置进行星座点映射，其中，该第一位置包括该N个比特中的P个比特，该第二位置包括该N个比特中的N-P个比特，P、N为正整数且P＜N。
结合第三方面，在第三方面的某些实现方式中，该第三星座图中该第一位置取值相同的多个星座点中星座点间的最小欧式距离大于第二星座图中星座点间的最小欧式距离；和/或，该第三星座图中该第二位置取值相同的多个星座点中星座点间的最小欧式距离大于第一星座图中星座点间的最小欧式距离。
结合第三方面，在第三方面的某些实现方式中，该第一码字共包括L个比特，该第二 码字共包括K个比特，该第三数据包中包括
Figure PCTCN2021113840-appb-000007
个该第三调制符号，以及该第三数据包还包括以对第一码字中剩余的
Figure PCTCN2021113840-appb-000008
个比特和K个比特中剩余的
Figure PCTCN2021113840-appb-000009
个比特调制得到的调制符号。
结合第三方面，在第三方面的某些实现方式中，该第一码字共包括L个比特，该第二码字共包括K个比特，若L＞K，第三数据包中包括根据该第三调制方式对第一码字中的K个比特和第二码字中的K个比特调制得到的2K/N个该第三调制符号，以及该第三数据包还包括根据该第一调制方式或该第三调制方式对该第一码字中剩余(L-K)个比特调制得到的调制符号；或者，若L＜K，第三数据包中包括根据该第三调制方式对第一码字中的L个比特和第二码字中的L个比特调制得到的2L/N个该第三调制符号，以及该第三数据包还包括根据该第二调制方式或该第三调制方式对该第二码字中剩余(K-L)个比特调制得到的调制符号。
结合第三方面，在第三方面的某些实现方式中，该收发单元还用于获取第一配置信息，该第一配置信息用于指示该第三数据包与该第一数据包之间的关联关系，和/或，该第三数据包与该第二数据包之间的关联关系。
可选地，获取第一配置信息既可以是从外部接收第一配置信息，也可以是在内部产生第一配置信息。
结合第三方面，在第三方面的某些实现方式中，该收发单元具体用于在接收到来自该第一设备的第一反馈信息和第二反馈信息后，向该第一设备发送该第三数据包，其中，该第一反馈信息用于指示未成功接收到该第一数据包，该第二反馈信息用于指示是未成功接收到该第二数据包。
第四方面，提供了一种通信装置，该装置是第一设备或配置于(或用于)第一设备的模块(如芯片)。
该通信装置包括：收发单元，用于接收来自第二设备的第一数据包和第二数据包，该第一数据包中包括根据第一调制方式对第一码字调制得到的至少一个第一调制符号，该第二数据包包括根据该第二调制方式对第二码字调制得到的至少一个第二调制符号；该收发单元还用于接收来自该第二设备的第三数据包，该第三数据包包括至少一个第三调制符号，该第三调制符号是根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特；处理单元，用于对该第一数据包、该第二数据包和该第三数据包进行解码。
结合第四方面，在第四方面的某些实现方式中，该第一调制方式对应第一星座图，该第一星座图中的每个星座点包括M个比特，该第二调制方式对应第二星座图，该第二星座图中的每个星座点包括Q个比特，该第三调制方式对应第三星座图，该第三星座图中每个星座点包括N个比特，其中，M、Q、N为正整数。
结合第四方面，在第四方面的某些实现方式中，该第一调制方式为调制阶数为M的正交振幅调制QAM，该第一星座图中相邻两个星座点之间仅1比特取值不同，和/或，该第二调制方式为调制阶数为Q的正交振幅调制QAM，该第二星座图中相邻两个星座点之间仅1比特取值不同。
结合第四方面，在第四方面的某些实现方式中，该第三星座图中每个星座点包括第一位置和第二位置，该第一码字中的比特根据该第一位置进行星座点映射，该第二码字中的 比特根据该第二位置进行星座点映射，其中，该第一位置包括该N个比特中的P个比特，该第二位置包括该N个比特中的N-P个比特，P、N为正整数且P＜N。
结合第四方面，在第四方面的某些实现方式中，该对该第一数据包、该第二数据包和该第三数据包进行解码，包括:合并该至少一个第一调制符号和该至少一个第三调制符号中与该第一位置对应的信息后进行解码；合并该至少一个第二调制符号和该至少一个第三调制符号中与该第二位置对应的信息后进行解码。
结合第四方面，在第四方面的某些实现方式中，该第三星座图中该第一位置取值相同的多个星座点中星座点间的最小欧式距离大于第二星座图中星座点间的最小欧式距离；和/或，该第三星座图中该第二位置取值相同的多个星座点中星座点间的最小欧式距离大于第一星座图中星座点间的最小欧式距离。
结合第四方面，在第四方面的某些实现方式中，该第一码字共包括L个比特，该第二码字共包括K个比特，该第三数据包中包括
Figure PCTCN2021113840-appb-000010
个该第三调制符号，以及该第三数据包还包括以对第一码字中剩余的
Figure PCTCN2021113840-appb-000011
个比特和K个比特中剩余的
Figure PCTCN2021113840-appb-000012
个比特调制得到的调制符号。
结合第四方面，在第四方面的某些实现方式中，该第一码字共包括L个比特，该第二码字共包括K个比特，若L>K，第三数据包中包括根据该第三调制方式对第一码字中的K个比特和第二码字中的K个比特调制得到的2K/N个该第三调制符号，以及该第三数据包还包括根据该第一调制方式或该第三调制方式对该第一码字中剩余(L-K)个比特调制得到的调制符号；或者，若L＜K，第三数据包中包括根据该第三调制方式对第一码字中的L个比特和第二码字中的L个比特调制得到的2L/N个该第三调制符号，以及该第三数据包还包括根据该第二调制方式或该第三调制方式对该第二码字中剩余(K-L)个比特调制得到的调制符号。
结合第四方面，在第四方面的某些实现方式中，该收发单元还用于获取第一配置信息，该第一配置信息用于指示该第三数据包与该第一数据包之间的关联关系，和/或，该第三数据包与该第二数据包之间的关联关系。
可选地，获取第一配置信息既可以是从外部接收第一配置信息，也可以是在内部产生第一配置信息。
结合第四方面，在第四方面的某些实现方式中，该收发单元具体用于在向该第二设备发送第一反馈信息和第二反馈信息后，接收来自该第二设备的该第三数据包，其中，该第一反馈信息用于指示未成功接收到该第一数据包，该第二反馈信息用于指示是未成功接收到该第二数据包。
第五方面，提供了一种通信装置，包括处理器。该处理器可以实现上述第一方面以及第一方面中任一种可能实现方式中的方法。
可选地，该通信装置还包括存储器，该处理器与该存储器耦合，可用于执行存储器中的指令，以实现上述第一方面以及第一方面中任一种可能实现方式中的方法。
可选地，该通信装置还包括通信接口，处理器与通信接口耦合。
本申请实施例中，通信接口可以是收发器、管脚、电路、总线、模块或其它类型的通信接口，不予限制。
在一种实现方式中，该通信装置为终端设备或网络设备。该通信接口可以是收发器， 或，输入/输出接口。
在另一种实现方式中，该通信装置为配置于终端设备或网络设备中的芯片。该通信接口可以是输入/输出接口。
可选地，该收发器可以为收发电路。可选地，该输入/输出接口可以为输入/输出电路。
第六方面，提供了一种通信装置，包括处理器。该处理器可以实现上述第二方面以及第二方面中任一种可能实现方式中的方法。
可选地，该通信装置还包括存储器，该处理器与该存储器耦合，可用于执行存储器中的指令，以实现上述第二方面以及第二方面中任一种可能实现方式中的方法。
可选地，该通信装置还包括通信接口，处理器与通信接口耦合。
本申请实施例中，通信接口可以是收发器、管脚、电路、总线、模块或其它类型的通信接口，不予限制。
在一种实现方式中，该通信装置为终端设备或网络设备。该通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该通信装置为配置于终端设备或网络设备中的芯片。该通信接口可以是输入/输出接口。
可选地，该收发器可以为收发电路。可选地，该输入/输出接口可以为输入/输出电路。
第七方面，本申请实施例提供一种通信装置，包括：逻辑电路和通信接口，其中，该通信接口用于获取待处理的数据，和/或，输出处理后的数据，该逻辑电路用于对待处理的数据得到处理后的数据，以使该通信装置执行第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中的方法。
一种可行的设计中，该通信接口包括输入接口和输出接口。
在一种实现方式中，该逻辑电路用于处理第一码字得到第一数据包，处理第二码字得到第二数据包，该第一数据包包括根据第一调制方式对第一码字调制得到至少一个第一调制符号，该第二数据包包括根据第二调制方式对第二码字调制得到至少一个第二调制符号；该通信接口用于输出该第一数据包和该第二数据包；该逻辑电路还用于处理该第一码字和该第二码字得到第三数据包，该第三数据包包括至少一个第三调制符号，一个该第三调制符号是根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特；该通信接口还用于输出该第三数据包。
在另一种实现方式中，该通信接口用于输入该第一数据包和该第二数据包，该第一数据包包括根据第一调制方式对第一码字调制得到至少一个第一调制符号，该第二数据包包括根据第二调制方式对第二码字调制得到至少一个第二调制符号；该通信接口还用于输入第三数据包，该第三数据包包括至少一个第三调制符号，一个该第三调制符号是根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特；该逻辑电路用于对该第一数据包、第二数据包和该第三数据包进行解码。
第八方面，提供了一种处理器，包括：输入电路、输出电路和处理电路。该处理电路用于通过该输入电路接收信号，并通过该输出电路发射信号，使得该处理器执行第一方面或第二方面以及第一方面至第五方面中任一种可能实现方式中的方法。
在具体实现过程中，上述处理器可以为一个或多个芯片，输入电路可以为输入管脚， 输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第九方面，提供了一种处理装置，包括处理器和存储器。该处理器用于读取存储器中存储的指令，并可通过接收器接收信号，通过发射器发射信号，以执行第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中的方法。
可选地，该处理器为一个或多个，该存储器为一个或多个。
可选地，该存储器可以与该处理器集成在一起，或者该存储器与处理器分离设置。
具体地，处理器输出的数据可以输出给发射器，处理器接收的输入数据可以来自接收器。其中，发射器和接收器可以统称为收发器。
上述第九方面中的处理装置可以是一个或多个芯片。该处理装置中的处理器可以通过硬件来实现也可以通过软件来实现。当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现，该存储器可以集成在处理器中，可以位于该处理器之外，独立存在。
第十方面，提供了一种计算机程序产品，该计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当该计算机程序被运行时，使得计算机执行上述第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中的方法。
第十一方面，提供了一种计算机可读介质，该计算机可读介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述第一方面或第二方面以及第一方面或第二方面中任一种可能实现方式中的方法。
第十二方面，提供了一种通信系统，其包括前述的第一设备和第二设备。
附图说明
图1是适用于本申请实施例的通信系统的一个示意性架构图；
图2是本申请实施例提供的数据传输方法的一个示意性流程图；
图3是本申请实施例提供的QPSK的星座图；
图4是本申请实施例提供的16QAM的星座图；
图5是本申请实施例提供的第三星座图的一个示意图；
图6是本申请实施例提供的第三星座图的另一个示意图；
图7是本申请实施例提供的数据传输方法的另一个示意性流程图；
图8是适用于本申请提供的数据传输方法的一个应用场景的示意图；
图9是本申请的通信装置的一例的示意性框图；
图10是本申请的终端设备的一例的示意性结构图；
图11是本申请的网络设备的一例的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请提供的通信方法可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)移动通信系统或新无线接入技术(new radio access technology，NR)。其中，5G移动通信系统可以包括非独立组网(non-standalone，NSA)和/或独立组网(standalone，SA)。本申请提供的通信方法还可以应用于未来的通信系统，如第六代移动通信系统等。本申请对此不作限定。
本申请提供的通信方法还可以应用于机器类通信(machine type communication，MTC)、机器间通信长期演进技术(long term evolution，LTE)、设备到设备(device to device，D2D)网络、机器到机器(machine to machine，M2M)网络、物联网(internet of things，IoT)网络或者其他网络。其中，IoT网络例如可以包括车联网。其中，车联网系统中的通信方式统称为车到其他设备(vehicle to everything，V2X)，例如，该V2X可以包括：车辆到车辆(vehicle to vehicle，V2V)通信，车辆与基础设施(vehicle to infrastructure，V2I)通信、车辆与行人之间的通信(vehicle to pedestrian，V2P)或车辆与网络(vehicle to network，V2N)通信等。
本申请实施例中，网络设备可以是一种具有无线收发功能的设备。网络设备包括但不限于：演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)，无线保真(wireless fidelity，WiFi)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为5G，如，NR，系统中的gNB，或，传输点(TRP或TP)，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、介质接入控制(medium access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
在本申请实施例中，终端设备也可以称为用户设备(user equipment，UE)、接入终端、 用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。
终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例可以为：手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑(如笔记本电脑、掌上电脑等)、移动互联网设备(mobile internet device，MID)、虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等。
其中，可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，终端设备还可以是物联网(internet of things，IoT)系统中的终端设备。IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。IoT技术可以通过例如窄带(narrow band，NB)技术，做到海量连接，深度覆盖，终端省电。
此外，终端设备还可以包括智能打印机、火车探测器、加油站等传感器，主要功能包括收集数据(部分终端设备)、接收网络设备的控制信息与下行数据，并发送电磁波，向网络设备传输上行数据。
为便于理解本申请实施例，首先结合图1详细说明适用于本申请实施例提供的数据传输方法的通信系统。如图所示，该通信系统100可以包括至少一个网络设备，如图1中的网络设备101；该通信系统100还可以包括至少一个终端设备，如图1中的终端设备102至107。其中，该终端设备102至107可以是移动的或固定的。网络设备101和终端设备102至107中的一个或多个均可以通过无线链路通信。网络设备和终端设备之间可以采用本申请实施例提供的数据传输方法进行数据传输。可选地，终端设备之间可以直接通信。例如可以利用D2D技术等实现终端设备之间的直接通信。如图中所示，终端设备105与106之间、终端设备105与107之间，可以利用D2D技术直接通信。终端设备106和终端设备107可以单独或同时与终端设备105通信。终端设备与终端设备进行通信时可以采用本申请实施例提供的数据传输方法进行数据传输。
应理解，图1示例性地示出了一个网络设备和多个终端设备，以及各通信设备之间的 通信链路。可选地，该通信系统100可以包括多个网络设备，并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，例如更多或更少的终端设备。本申请对此不做限定。
在传输数据时，例如，在URLLC场景下，数据包连续出错的概率较小，因此本申请提出发送端在发送多个数据包后发送重传数据包，重传数据包中的每个调制符号包括之前传输的至少两个数据包中的数据比特。当该至少两个数据包中的至少一个数据包解码成功时，实现重传数据包可以在有先验信息的情况下进行解调解码。使得接收端在能够合并接收，提高了数据包的信号噪声功率比(signal to noise ratio，SNR)的情况下，进一步提高了数据包解码成功的概率，提高了数据传输的可靠性。
本申请实施例还提供了一种调制方式的星座图设计方案，星座图中特定比特位取值相同的多个星座点中，相邻两个星座点之间的欧式距离至少大于相同调制阶数的格雷(gray)映射星座图中相邻两个星座点之间的欧式距离。使得该至少两个数据包中的一个数据包解码成功的情况下，其他数据包对应的星座点的欧式距离增大，更进一步地提高了解码成功的概率，提高了数据传输的可靠性。
下面结合附图对本申请提供的数据传输方法进行说明。
图2是本申请实施例提供的数据传输的方法的一示意性流程图。
第一设备和第二设备可以采用图2所示的实施例进行数据传输，第一设备可以是网络设备或终端设备，第二设备也可以是网络设备或终端设备，本申请对此不做限定。
S210，第二设备根据第一调制方式对第一码字调制得到至少一个第一调制符号。
第二设备根据第一调制方式对第一码字进行调制，第一调制方式对每M个比特得到一个调制符号。第一码字包括L个比特，则第二设备根据第一调制方式对第一码字调制得到L/M个第一调制符号，其中，L≥M，且L、M为正整数。
可选地，第一调制方式对应第一星座图，第一星座图中的每个星座点包括M个比特。
例如，第一星座图为格雷星座映射图。M＝2时，第一调制方式为正交相移键控(quadrature phase shift keying，QPSK),第一星座图可以如图3所示，其中横轴表示同相(in-phase)分量I，纵轴表示正交(quadrature)分量Q。M＝4时，第一调制方式为调制阶数为4的正交幅度调制(quadrature amplitude modulation)，即16QAM，第一星座图可以如图4所示。第一调制方式还可以是256QAM、1024QAM等其他调制方式，本申请对此不做限定。
在第一星座图为格雷星座映射图的情况下，第一星座图中的相邻两个星座点之间仅1比特取值不同。
S220，第二设备向第一设备发送第一数据包，该第一数据包包括该至少一个第一调制符号。
相应地，第一设备接收来自第二设备的第一数据包。该第一数据包包括第二设备根据第一调制方式对第一码字调制得到的L/M个第一调制符号。
S230，第二设备根据第二调制方式对第二码字调制得到至少一个第二调制符号。
第二设备根据第二调制方式对第二码字进行调制，第二调制方式对每Q个比特得到一个调制符号。第二码字包括K个比特，则第二设备根据第二调制方式对第二码字调制得到K/Q个第二调制符号，其中，K≥Q，且K、Q为正整数。
应理解，第一码字和第二码字可以采用相同信道编码方式生成的，也可以是不同的信 道编码方式生成的，本申请对此不做限定。
可选地，第二调制方式对应第二星座图，第二星座图中的每个星座点包括Q个比特。
例如，第二星座图为格雷星座映射图。M＝2时，第二调制方式为如图3所示的QPSK。M＝4时，第二调制方式为如图4所示的16QAM。第二调制方式还可以是256QAM、1024QAM等其他调制方式，本申请对此不做限定。
在第二星座图为格雷星座映射图的情况下，第二星座图中的相邻两个星座点之间仅1比特取值不同。
一种实施方式中，第二设备可以按照时间顺序先发送第一数据包，后发送第二数据包。
例如，第二设备在第一时间段发送第一数据包，在第二时间段发送第二数据包，但本申请不限于此。
另一种实施方式中，第二设备可以在同一时间段不同频域资源位置分别发送第一数据包和第二数据包。
例如，第一设备和第二设备采用载波聚合(carrier aggregation，CA)方式进行通信，第一数据包和第二数据包承载在同一时间段内的不同载波上。或者第一数据包和第二数据包可以承载在同一载波的不同带宽部分上，但本申请不限于此。
S240，第二设备向第一设备发送第二数据包，该第一数据包包括该至少一个第二调制符号。
相应地，第一设备接收来自第二设备的第二数据包。该第二数据包包括第二设备根据第二调制方式对第二码字调制得到的K/Q个第二调制符号。
S250，第二设备根据第三调制方式得到至少一个第三调制符号。一个第三调制符号包括第一码字中的至少一个比特和第二码字中的至少一个比特。
具体地，一个第三调制符号是第二设备根据第三调制方式对一个比特组进行调制得到的，一个比特组包括N个比特，该N个比特中包括第一码字中的至少一个比特和第二码字中的至少一个比特，N为大于或等于2的正整数。
根据上述方案，第一设备在能够合并第一数据包和重传数据包中第一码字的信息，以及合并第二数据包和重传数据包中的第二码字的信息，当第一数据包和第二数据包中的至少一个数据包解码成功时，可以实现第三数据包在有先验信息的情况下进行解调解码。能够降低解码数据包时的SNR需求，以较低SNR成功解码，提高了数据包解码成功的概率，提高了数据传输的可靠性。
可选地，第三调制方式对应第三星座图，第三星座图中的每个星座点包括N个比特。
可选地，每个星座点的N个比特包括第一位置和第二位置，该第一码字中的比特根据第一位置进行星座点映射，该第二码字中的比特根据第二位置进行星座点映射，其中，该第一位置包括N个比特中的P个比特，该第二位置包括N个比特中的N-P个比特，P为小于N的正整数。
例如，第三调制方式为如图4所示的16QAM，即一个星座点包括4个比特(N＝4)。每个星座点的4个比特的比特位依次记作S 0、S 1、S 2、S 3。其中，第一位置可以包括S 0、S 1，第二位置可以包括S 2、S 3。第一码字根据S 0、S 1进行星座点映射，第二码字根据S 2、S 3进行星座点映射。若第二设备解码得到第一码字，而未成功解码第二码字。则第二设备可以将第一码字作为先验信息对第三数据包进行解调得到更准确地第三数据包中第二码 字的解调信息。具体地，在已知星座图中第一码字对应的第一码字对应的S 0、S 1的情况下，一个调制符号成功译码的概率由1/16变为1/4。例如，已知一个调制符号对应的4个比特中的前两个比特为00，则该调制符号由原本对应星座图中16个星座点中的一个星座点，范围缩小到对应Q轴取值为2A的4个点，即0010、0011、0001、0000。提高了第二设备成功解码第二码字的概率。反之，第二设备解码得到第二码字而未成功解码第一码字也可以采用相同的处理方式。
需要说明的是，第一位置和第二位置可以根据具体实施进行设定，本申请对此不做限定，例如，上述示例中，第一位置可以是S 0、S 2，第二位置可以是S 1、S 3，或者，第一位置可以是S 0、S 1、S 2，第二位置可以是S 3。以及，上述示例以一个第三调制符号包括两个数据包中的比特作为示例进行说明，但本申请不限于此，一个第三调制符号还可以包括更多数据包中的比特，实施方式与两个数据包类似，为了简要，在此不再赘述。
可选地，第三星座图中第一位置取值相同的多个星座点中星座点间的最小欧式距离大于第二星座图中星座点间的最小欧式距离；和/或，第三星座图中第二位置取值相同的多个星座点中星座点间的最小欧式距离大于第二星座图中星座点间的最小欧式距离。
其中，多个星座点中距离最近的两个星座点之间的欧式距离可以称为该多个星座点中星座点间的最小欧式距离。例如，在图3所示的QPSK的星座图中，距离最近的两个星座点之间的欧式距离为
Figure PCTCN2021113840-appb-000013
则QPSK的星座图中星座点间的最小欧式距离为
Figure PCTCN2021113840-appb-000014
在图4所示的16QAM的星座图中，距离最近的两个星座点之间的欧式距离为
Figure PCTCN2021113840-appb-000015
则16QAM的星座图中星座点间的最小欧式距离为
Figure PCTCN2021113840-appb-000016
根据上述方案，星座点之间的最小欧式距离增加，能够降低解码数据包时的SNR的需求，以较低SNR成功解码，提高了解码成功的概率。
示例性地，第一调制方式和第二调制方式可以是QPSK，第三星座图可以是如图5所示的星座图，第三星座图中每个星座点包含2个比特(即N＝2)，比特位依次记作S 0、S 1。其中，第一位置可以是S 0，第二位置可以是S 1，或者，第二位置可以是S 0，第一位置可以是S 1。S 0取值为1的星座点为11和10，该两个星座点之间的欧式距离为2，大于QPSK的星座图中的星座点间的最小欧式距离
Figure PCTCN2021113840-appb-000017
以及，S 0取值为0的星座点为00和01，该两个星座点之间的欧式距离为2，大于QPSK的星座图中的星座点间的最小欧式距离
Figure PCTCN2021113840-appb-000018
这使得当S 0对应的码字被译码成功后，S 0取值相同的星座点之间的欧式距离增大，能够降低解码S 1对应的码字时对SNR值的需求，提高了成功解码的概率，但本申请不限于此。本示例中，第一调制方式和/或第二调制方式还可以是16QAM，64QAM等其他最小欧式距离小于2。第三星座图还可以是如表1所示的8个矩阵中的一个矩阵对应的星座图，但本申请不限于此。
表1
Figure PCTCN2021113840-appb-000019
在表1中，一个矩阵对应一个星座图。一个矩阵中的一个值是该矩阵对应的星座图中 一个二进制星座点对应的十进制值，矩阵中第一行的两个值对应Q＝A时的两个星座点，第二行的两个值对应Q＝-A时的两个星座点，每行第一个值与I＝-A的星座点对应，第二个值与I＝A的星座点对应。例如，图5所示的星座图对应的矩阵为
Figure PCTCN2021113840-appb-000020
示例性地，第三星座图还可以是如图6所示的星座图，该星座图中每个星座点包括4个比特(即N＝4)，比特位依次记作S 0、S 1、S 2、S 3，其中，图6以第一位置包括S 0、S 1，第二位置包括S 2、S 3为例。如图6所示，第一位置取值相同的4个星座点中星座点间的最小欧式距离为
Figure PCTCN2021113840-appb-000021
例如，第一位置的S 0S 1取值为00的4个星座点0000、0001、0010、0011中，星座点0001与0000之间的距离和星座点0011和0010之间的距离为星座点0001与0011之间的距离和0000与0010之间的距离为4A。则该4个星座点中星座点间的最小欧式距离为
Figure PCTCN2021113840-appb-000022
另外，第一位置的S 0S 1取值为01的4个星座点中的最小欧式距离、取值为10的4个星座点中的最小欧式距离以及取值为11的4个星座点中的最小欧式距离均为
Figure PCTCN2021113840-appb-000023
同理，第二位置取值相同的4个星座点中星座点间的最小欧式距离同样为
Figure PCTCN2021113840-appb-000024
也就是说，第二位置取00、01、10、11中的任个值对应的4个星座点中的最小欧式距离均为
Figure PCTCN2021113840-appb-000025
第一调制方式和/或第二调制方式可以是16QAM、64QAM或256QAM等其他最小欧式距离小于
Figure PCTCN2021113840-appb-000026
的调制方式。这使得第一码字和第二码字中的任一个码字译码成功后，另一个码字对应的星座点之间欧式距离增大，能够降低解码该码字时对SNR值的需求，提高了成功解码的概率。但本申请不限于此，在本示例中，第三星座图还可以是如表2所示的8个矩阵中的一个矩阵对应的星座图，但本申请不限于此。
表2
Figure PCTCN2021113840-appb-000027
在表1中，一个矩阵对应一个星座图。一个矩阵中的一个值是该矩阵对应的星座图中一个二进制星座点对应的十进制值，矩阵中第一行、第二行、第三行、第四行分别与Q＝2A、Q＝A、Q＝-A、Q＝-2A相对应。矩阵中第一列、第二列、第三列、第四列分别与I＝2A、I＝A、I＝-A、I＝-2A相对应。例如，图6所示的星座图对应的矩阵为
Figure PCTCN2021113840-appb-000028
上文中结合第三星座图的示例对本申请实施例的方案进行了说明，第三星座图还可以是其他满足条件的星座图，为了简要，这里不再一一举例详述。
第二设备根据第三调制方式对第一码字的L个比特和第二码字中的K个比特进行调制，其中，第一位置包括P个比特，则L个比特可以组成
Figure PCTCN2021113840-appb-000029
个第三调制符号，第二位置包 括N-P个比特，则K个比特可以组成
Figure PCTCN2021113840-appb-000030
那么第二设备可以根据第三调制方式得到
Figure PCTCN2021113840-appb-000031
个第三调制符号。第二设备可以对第一码字中剩余的
Figure PCTCN2021113840-appb-000032
个比特和K个比特中剩余的
Figure PCTCN2021113840-appb-000033
个比特调制得到R个调制符号。
可选地，该R个调制符号是根据第三调制方式调制得到的。
一种实施方式中，该
Figure PCTCN2021113840-appb-000034
个第三调制符号和该R个调制符号可以组成第三数据包。也就是说，第三数据包包括第一码字和第二码字所有比特调制得到的调制符号。
另一种实施方式中，该
Figure PCTCN2021113840-appb-000035
个第三调制符号和该R个调制符号可以组成多个数据包分别由第二设备发送给第一设备，该多个数据包中包括第三数据包。
可选地，第三数据包中仅包括至少一个第三调制符号。
例如，L＝67，K＝59，第三调制方式的调制阶数N＝4，第一位置包括P＝2个比特，第二位置包括N-P＝2个比特。第一码字的L个比特可以组成
Figure PCTCN2021113840-appb-000036
第二码字的K个比特可以组成
Figure PCTCN2021113840-appb-000037
因此，第二设备可以根据第三调制方式得到29个第三调制符号。第二设备对第一码字中剩余的67-2×29＝9个比特和第二码字中剩余的59-2×29＝1比特调制得到R个调制符号。例如，第二设备采用第三调制方式对剩余比特进行调制，第二设备可以将第一码字剩余的9个比特中补3个0后进行调制得到4个调制符号，将第二码字剩余的1个比特补0后进行调制得到1个调制符号，则得到根据剩余比特调制得到的5个调制符号(即R＝5)。或者，第二设备可以将第一码字剩余的9比特和第二码字剩余的1比特串联并补0后生成4个调制符号(即R＝4)，具体剩余比特的调制方式可以采用第一设备和第二设备达成共识的一种方式进行调制，本申请对此不做限定。
S260，第二设备向第一设备发送第三数据包，该第三数据包包括该至少一个第三调制符号。
相应地，第一设备接收来自第二设备的第三数据包。
一种实施方式中，第二设备获取第一配置信息，该第一配置信息用于指示该第三数据包与第一数据包之间的关联关系，和/或，用于指示该第三数据包与第二数据包之间的关联关系。第二设备根据第一配置信息确定该关联关系。
作为示例非限定，该第一配置信息为控制信息或无线资源控制(radio resource control，RRC)消息。
可选地，该控制信息可以是网络设备向终端设备发送的下行控制信息(downlink control information，DCI)，也可以是采用D2D通信方式的两个终端设备之间的侧行链路控制信息(sidelink control information，SCI)。
在本申请中，获取信息/数据既可以是从外部接收信息/数据，也可以是在内部生成信息/数据，例如：获取第一配置信息既可以是从外部接收第一配置信息，也可以是在内部产生第一配置信息。
例如，该第三数据包与第一数据包和/或第二数据包之间的关联关系是由第一设备确定的，并由第一设备向第二设备发送该第一配置信息。第二设备获取第一配置信息则表示第二设备从第一设备接收第一配置信息。或者，该第三数据包与第一数据包和/或第二数据包之间的关联关系是由第二设备确定的，该第二设备在内部产生该第一配置信息，在生成第 三数据包时根据该第一配置信息确定该第三数据包包括第一码字的比特和第二码字的比特。第二设备还可以向第一设备发送该第一配置信息，以使第一设备和第二设备对第三数据包与第一数据包和/或第二数据包之间的关系达成共识。
再例如，该第一配置信息为DCI，由网络设备确定第三数据包与第一数据包和/或第二数据包之间的关联关系后，通过DCI通知终端设备，第二设备为网络设备，第一设备为终端设备，则由第二设备内部产生DCI后，向第一设备发送该DCI。或者，第二设备为终端设备，第一设备为网络设备，则第二设备接收来自网络设备的该DCI，以获取第三数据包与第一数据包和/或第二数据包之间的关联关系。
例如，第一数据包、第二数据包和第三数据包按照时间先后依次发送，该DCI可以指示第三数据包与第一数据包和/或第二数据包之间的时间间隔。或者，第一数据包、第二数据包和第三数据包在同一时间段的不同频域位置(如不同载波或同一载波的不同带宽部分)上，该DCI可以指示该第三数据包与第一数据包和/或第二数据包之间的频域位置关系，但本申请不限于此。
再例如，该第一配置信息为用于调度该第三数据包的DCI，该DCI中包括HARQ进程指示域。该HARQ进程指示域指示第一HARQ进程和第二HARQ进程。其中，第一HARQ进程与第一数据包对应的，第二HARQ进程与第二数据包对应，表示该第三数据包包括第一码字中的比特和第二码字中的比特。可选地，该第一指示域包括第一HARQ进程的标识(如，HARQ ID1)和第二HARQ进程的标识(如，HARQ ID2)，或者，该第一指示域包括一个索引值，该索引值与第一HARQ进程和第二HARQ进程相对应。例如，网络可以预先配置一个索引表，索引表中每个索引值对应两个HARQ进程，但本申请不限于此。再例如，第一码字和第二码字可以是URLLC业务数据的码字，第一数据包、第二数据包和第三数据包承载在配置授权(或者免调度授权)资源上，可以保证URLLC业务的可靠性及时延需求。
另一种实施方式中，第二设备发送第一数据包和第二数据包后，且接收到来自第一设备的第一反馈信息和第二反馈信息的情况下，第二设备向第一设备发送该第三数据包。
其中，第一反馈信息指示未成功接收第一数据包，第二反馈信息指示未成功接收第二数据包。
S270，第一设备对第一数据包、第二数据包和第三数据包进行解码。
应理解，本申请中，对数据包解码至少包括对数据包中的调制符号进行解调制或称为解调。可选地，解码还可以包括解信道编码或称为译码，本申请对此不做限定。
一种实施方式中，第一设备可以接收到第一数据包后对第一数据包进行解码，接收到第二数据包后对第二数据包解码，第一数据包和第二数据包中的一个数据包为解码成功的情况下，将该解码成功的数据包与第三数据包合并后解码。
例如，第一设备分别解码第一数据包和第二数据包，第一数据包未解码成功，第二数据包解码成功得到第二码字，第一设备可以根据第二码字对第三数据包中的第三调制符号进行解调得到与第一位置对应的第一码字的软信息，并与第一数据包解调制得到的第一码字的软信息进行合并后译码，提高了成功译码得到第一码字的概率。
再例如，第一设备未成功解码第一数据包获得第一码字，向第二设备发送第一反馈信息，且第一设备未成功解码第二数据包得到第二码字，向第二设备发送第二反馈信息。第 二设备接收到第一反馈信息和第二反馈信息后，向第一设备发送第三数据包。第一设备接收到该第三数据包后对第三数据包解调，将第一位置对应的第一码字的软信息与第一数据包解调得到的第一码字的软信息合并后进行译码。以及第一设备解调第三数据包解调得到的第二位置对应的第二码字的软信息，与第二数据包解调得到的第二码字的软信息合并后进行译码。获得更高的码字的SNR值，提高了译码的概率。若第一设备成功译码得到其中一个码字而仍未成功译码另一个码字，第一设备还可以将成功译码的码字作为先验信息对第三数据包进行解调，以得到更准确地未成功译码的码字软信息，进一步提高解码成功的概率。
另一种实施方式中，第二设备可以在接收到第三数据包后合并第一数据包中的数据信息与第三数据包中第一码字的相关信息进行解码，以及合并第二数据包中的数据信息与第三数据包中第二码字的相关信息进行解码。
根据上述方案，可以实现接收端在能够合并接收的情况下，能够降低解码数据包使得SNR需求，以较低SNR成功解码，提高数据包解码成功的概率，进而提高了数据传输的可靠性。
需要说明的是，本申请流程图中的各个步骤的编号对各个步骤执行顺序不构成限定，步骤之间的顺序由各个步骤之间的逻辑关系决定，例如，图2中S230可以在S220之前也可以在S220之后，本申请对此不做限定。
图7为本申请实施例提供的数据传输方法的另一个示意性流程图。
需要说明的是，图7所示的实施例与图2所示的实施例相同或相似的部分，在为另行定义或说明的情况下，可以上述对参考图2所示的实施例的描述，为了简要，在此不再赘述。
S710，第一设备接收数据包A，该数据包A包括根据调制方式A对码字A进行调制得到的调制符号A。
可选地，调制方式A对应星座图A。
S720，第一设备接收数据包B，该数据包B包括根据调制方式B得到的至少一个调制符号B，一个调制符号B包括码字A的至少一个比特和码字B的至少一个比特。
可选地，调制方式B对应星座图B。星座图B中的每个星座点包括N个比特。
可选地，每个星座点的N个比特包括第一位置和第二位置，该码字A中的比特根据第一位置进行星座点映射，该码字B中的比特根据第二位置进行星座点映射，其中，该第一位置包括N个比特中的P个比特，该第二位置包括N个比特中的N-P个比特，P为小于N的正整数。
S730，第一设备对数据包A和数据包B进行解码。
第一设备对数据包A解码后得到码字A，以码字A作为先验信息解码数据包B得到码字B，或者，第一设备合并对数据包A解调得到的码字A的软信息与对数据包B解调得到的与第一位置对应的码字A的软信息后译码得到码字A，并以码字A作为先验信息解调数据包B得到更准确码字B的软信息后，译码得到码字B。
该数据包A和数据包B可以来自同一个设备，例如，数据包A和数据包B均是第二设备发送的。或者，该数据包A和数据包B可以来自不同的设备。
例如，图7所示的实施例可以应用于图8所示的场景中，终端设备2在第一时刻执行 发送数据包A，网络设备(即第一设备)执行S710接收该数据包A，终端设备1也接收该数据包A并解码得到码字A。终端设备1采用调制方式B对终端设备2的码字A与终端设备1的码字B进行调制得到至少一个调制符号B，并向网络设备发送数据包B，该数据包B包括该至少一个调制符号B。使得网络设备可以合并数据包A和数据包B对码字A进行解码以得到更高的码字A的SNR，提高了码字A解码成功的概率。还可以以码字A作为先验信息解码数据包B中的码字B，但本申请不限于此。
根据上述方案，可以实现接收端在能够合并接收的情况下，能够降低解码数据包时的SNR需求，以较低SNR成功解码，提高数据包解码成功的概率，进而提高了数据传输的可靠性。
图9是本申请实施例提供的通信装置的示意性框图。如图9所示，该通信装置900可以包括处理单元910和收发单元920。
在一种可能的设计中，该通信装置900可对应于上文方法实施例中的第一设备，或者配置于(或用于)第一设备中的芯片，或者其他能够实现第一设备的方法的装置、模块、电路或单元等。
应理解，该通信装置900可对应于根据本申请实施例的方法200、700中的第一设备，该通信装置900可以包括用于执行图2、图7中的方法200、700中第一设备执行的方法的单元。并且，该通信装置900中的各单元和上述其他操作和/或功能分别为了实现图2、图7中的方法200、700的相应流程。
还应理解，该通信装置900为配置于(或用于)第一设备中的芯片时，该通信装置900中的收发单元920可以为芯片的输入/输出接口或电路，该通信装置900中的处理单元910可以为芯片中的处理器。
可选地，通信装置900还可以包括处理单元910，该处理单元910可以用于处理指令或者数据，以实现相应的操作。
可选地，通信装置900还可以包括存储单元930，该存储单元930可以用于存储指令或者数据，处理单元910可以执行该存储单元中存储的指令或者数据，以使该通信装置实现相应的操作。
应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
在另一种可能的设计中，该通信装置900可对应于上文方法实施例中的第二设备，或者配置于(或用于)第二设备中的芯片，或者其他能够实现网络设备的方法的装置、模块、电路或单元等。
应理解，该通信装置900可对应于根据本申请实施例的方法200中的第二设备。该通信装置900可以包括用于执行图2中的方法200中第二设备执行的方法的单元。并且，该通信装置900中的各单元和上述其他操作和/或功能分别为了实现图2中的方法200的相应流程。
还应理解，该通信装置900为配置于(或用于)第二设备中的芯片时，该通信装置900中的收发单元为芯片中的输入/输出接口或电路，该通信装置900中的处理单元910可为芯片中的处理器。
可选地，通信装置900还可以包括处理单元910，该处理单元910可以用于处理指令 或者数据，以实现相应的操作。
应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
一种实施方式中，该通信装置900为终端设备或配置于终端设备。可选地，该通信装置900中的收发单元920为可对应于图10中示出的终端设备1000中的收发器1010，存储单元930可对应于图10中示出的终端设备1000中的存储器。
图10是本申请实施例提供的终端设备1000的结构示意图。该终端设备1000可应用于如图1所示的系统中，执行上述方法实施例中终端设备的功能。如图所示，该终端设备1000包括处理器1020和收发器1010。可选地，该终端设备1000还包括存储器。其中，处理器1020、收发器1010和存储器之间可以通过内部连接通路互相通信，传递控制和/或数据信号，该存储器用于存储计算机程序，该处理器1020用于执行该存储器中的该计算机程序，以控制该收发器1010收发信号。
上述处理器1020可以和存储器可以合成一个处理装置，处理器1020用于执行存储器中存储的程序代码来实现上述功能。具体实现时，该存储器也可以集成在处理器1020中，或者独立于处理器1020。该处理器1020可以与图6中的处理单元对应。
上述收发器1010可以与图9中的收发单元对应。收发器1010可以包括接收器(或称接收机、接收电路)和发射器(或称发射机、发射电路)。其中，接收器用于接收信号，发射器用于发射信号。
应理解，图10所示的终端设备1000能够实现图2、图7所示方法实施例中涉及终端设备的过程。终端设备1000中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详细描述。
上述处理器1020可以用于执行前面方法实施例中描述的由终端设备内部实现的动作，而收发器1010可以用于执行前面方法实施例中描述的终端设备向网络设备发送或从网络设备接收的动作。具体请见前面方法实施例中的描述，此处不再赘述。
可选地，上述终端设备1000还可以包括电源，用于给终端设备中的各种器件或电路提供电源。
除此之外，为了使得终端设备的功能更加完善，该终端设备1000还可以包括输入单元、显示单元、音频电路、摄像头和传感器等中的一个或多个，所述音频电路还可以包括扬声器、麦克风等。
另一种实施方式中，该通信装置900为网络设备或配置于网络设备。可选地，该通信装置900中的收发单元920为可对应于图11中示出的网络设备1100中的收发器1110，存储单元930可对应于图11中示出的终端设备1120中的存储器。
图11是本申请实施例提供的网络设备的结构示意图，该网络设备1100可应用于如图1所示的系统中，执行上述方法实施例中网络设备的功能。例如可以为网络设备的相关结构的示意图。
应理解，图11所示的网络设备1100能够实现图2、图7所示方法实施例中涉及网络设备的各个过程。网络设备1100中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略 详细描述。
应理解，图11所示出的网络设备1100可以是eNB或gNB，可选地，网络设备包含CU、DU和AAU的网络设备等，可选地，CU可以具体分为CU-CP和CU-UP。本申请对于网络设备的具体架构不作限定。
应理解，图11所示出的网络设备1100可以是CU节点或CU-CP节点。
本申请实施例还提供了一种处理装置，包括处理器和(通信)接口；所述处理器用于执行上述任一方法实施例中的方法。
应理解，上述处理装置可以是一个或多个芯片。例如，该处理装置可以是现场可编程门阵列(field programmable gate array，FPGA)，可以是专用集成芯片(application specific integrated circuit，ASIC)，还可以是系统芯片(system on chip，SoC)，还可以是中央处理器(central processor unit，CPU)，还可以是网络处理器(network processor，NP)，还可以是数字信号处理电路(digital signal processor，DSP)，还可以是微控制器(micro controller unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片。
本申请实施例还提供一种通信装置，包括：逻辑电路和通信接口，其中，该通信接口用于获取待处理的数据，和/或，输出处理后的数据，该逻辑电路用于处理待处理的数据或者得到处理后的数据，以使该通信装置执行执行图2、图7所示实施例中的方法。
一种可行的设计中，该通信接口包括输入接口和输出接口。
在一种实现方式中，该逻辑电路用于处理第一码字得到第一数据包，处理第二码字得到第二数据包，该第一数据包包括根据第一调制方式对第一码字调制得到至少一个第一调制符号，该第二数据包包括根据第二调制方式对第二码字调制得到至少一个第二调制符号；该通信接口用于输出该第一数据包和该第二数据包(即处理后的数据)；该逻辑电路还用于处理该第一码字和该第二码字得到第三数据包，该第三数据包包括至少一个第三调制符号，一个该第三调制符号是根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特；该通信接口还用于输出该第三数据包(也是处理后的数据)。
在另一种实现方式中，该通信接口用于输入该第一数据包和该第二数据包(即待处理的数据)，该第一数据包包括根据第一调制方式对第一码字调制得到至少一个第一调制符号，该第二数据包包括根据第二调制方式对第二码字调制得到至少一个第二调制符号；该通信接口还用于输入第三数据包(也是待处理的数据)，该第三数据包包括至少一个第三调制符号，一个该第三调制符号是根据第三调制方式对一个比特组调制得到的，该一个比特组包括该第一码字中的至少一个比特和该第二码字中的至少一个比特；该逻辑电路用于对该第一数据包、第二数据包和该第三数据包进行解码处理。
本申请还提供一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当该计算机程序代码由一个或多个处理器执行时，使得包括该处理器的装置执行图2、图7所示实施例中的方法。
本申请还提供一种计算机可读存储介质，该计算机可读存储介质存储有程序代码，当该程序代码由一个或多个处理器运行时，使得包括该处理器的装置执行图2、图7所示实施例中的方法。
本申请还提供一种系统，其包括前述第一设备和第二设备。
上述各个装置实施例中第一设备与第二设备和方法实施例中的第一设备或第二设备完全对应，由相应的模块或单元执行相应的步骤，例如通信单元(收发器)执行方法实施例中接收或发送的步骤，除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中，处理器可以为一个或多个。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
在本申请实施例中，在无逻辑矛盾的前提下，各实施例之间可以相互引用，例如方法实施例之间的方法和/或术语可以相互引用，例如装置实施例之间的功能和/或术语可以相互引用，例如装置实施例和方法实施例之间的功能和/或术语可以相互引用。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (21)

  1. 一种数据传输方法，其特征在于，包括：
    向第一设备发送第一数据包和第二数据包，所述第一数据包中包括至少一个第一调制符号，所述至少一个第一调制符号是根据第一调制方式对第一码字调制得到的，所述第二数据包包括至少一个第二调制符号，所述至少一个第二调制符号是根据第二调制方式对第二码字调制得到的；
    向所述第一设备发送第三数据包，所述第三数据包包括至少一个第三调制符号，一个所述第三调制符号是根据第三调制方式对一个比特组调制得到的，所述一个比特组包括所述第一码字中的至少一个比特和所述第二码字中的至少一个比特。
  2. 根据权利要求1所述的方法，其特征在于，所述第一调制方式对应第一星座图，所述第一星座图中的每个星座点包括M个比特，所述第二调制方式对应第二星座图，所述第二星座图中的每个星座点包括Q个比特，所述第三调制方式对应第三星座图，所述第三星座图中每个星座点包括N个比特，其中，M、Q、N为正整数。
  3. 根据权利要求2所述的方法，其特征在于，所述第一调制方式为调制阶数为M的正交振幅调制QAM，所述第一星座图中相邻两个星座点之间仅1比特取值不同，和/或，
    所述第二调制方式为调制阶数为Q的正交振幅调制QAM，所述第二星座图中相邻两个星座点之间仅1比特取值不同。
  4. 根据权利要求2或3所述的方法，其特征在于，所述第三星座图中每个星座点包括第一位置和第二位置，所述第一码字中的比特根据所述第一位置进行星座点映射，所述第二码字中的比特根据所述第二位置进行星座点映射，其中，所述第一位置包括所述N个比特中的P个比特，所述第二位置包括所述N个比特中的N-P个比特，P、N为正整数且P＜N。
  5. 根据权利要求4所述的方法，其特征在于，
    所述第三星座图中所述第一位置取值相同的多个星座点中星座点间的最小欧式距离大于第二星座图中星座点间的最小欧式距离；和/或，
    所述第三星座图中所述第二位置取值相同的多个星座点中星座点间的最小欧式距离大于第一星座图中星座点间的最小欧式距离。
  6. 根据权利要求4或5所述的方法，其特征在于，所述第一码字共包括L个比特，所述第二码字共包括K个比特，
    若L＞K，第三数据包中包括根据所述第三调制方式对第一码字中的K个比特和第二码字中的K个比特调制得到的2K/N个所述第三调制符号，以及所述第三数据包还包括根据所述第一调制方式或所述第三调制方式对所述第一码字中剩余L-K个比特调制得到的调制符号；或者，
    若L＜K，第三数据包中包括根据所述第三调制方式对第一码字中的L个比特和第二码字中的L个比特调制得到的2L/N个所述第三调制符号，以及所述第三数据包还包括根据所述第二调制方式或所述第三调制方式对所述第二码字中剩余K-L个比特调制得到的调制符号。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    获取第一配置信息，所述第一配置信息用于指示所述第三数据包与所述第一数据包之 间的关联关系，和/或，用于指示所述第三数据包与所述第二数据包之间的关联关系。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，向所述第一设备发送第三数据包，包括：
    接收到来自所述第一设备的第一反馈信息和第二反馈信息后，发送所述第三数据包，其中，所述第一反馈信息用于指示未成功接收到所述第一数据包，所述第二反馈信息用于指示是未成功接收到所述第二数据包。
  9. 一种数据传输方法，其特征在于，包括：
    接收来自第二设备的第一数据包和第二数据包，所述第一数据包中包括根据第一调制方式对第一码字调制得到的至少一个第一调制符号，所述第二数据包包括根据第二调制方式对第二码字调制得到的至少一个第二调制符号；
    接收来自所述第二设备的第三数据包，所述第三数据包包括至少一个第三调制符号，所述第三调制符号是根据第三调制方式对一个比特组调制得到的，所述一个比特组包括所述第一码字中的至少一个比特和所述第二码字中的至少一个比特；
    对所述第一数据包、所述第二数据包和所述第三数据包进行解码。
  10. 根据权利要求9所述的方法，其特征在于，所述第一调制方式对应第一星座图，所述第一星座图中的每个星座点包括M个比特，所述第二调制方式对应第二星座图，所述第二星座图中的每个星座点包括Q个比特，所述第三调制方式对应第三星座图，所述第三星座图中每个星座点包括N个比特，其中，M、Q、N为正整数。
  11. 根据权利要求10所述的方法，其特征在于，所述第一调制方式为调制阶数为M的正交振幅调制QAM，所述第一星座图中相邻两个星座点之间仅1比特取值不同，和/或，所述第二调制方式为调制阶数为Q的正交振幅调制QAM，所述第二星座图中相邻两个星座点之间仅1比特取值不同。
  12. 根据权利要求10或11所述的方法，其特征在于，所述第三星座图中每个星座点包括第一位置和第二位置，所述第一码字中的比特根据所述第一位置进行星座点映射，所述第二码字中的比特根据所述第二位置进行星座点映射，其中，所述第一位置包括所述N个比特中的P个比特，所述第二位置包括所述N个比特中的N-P个比特，P、N为正整数且P＜N。
  13. 根据权利要求12所述的方法，其特征在于，所述对所述第一数据包、所述第二数据包和所述第三数据包进行解码，包括:
    合并所述至少一个第一调制符号和所述至少一个第三调制符号中与所述第一位置对应的信息后进行解码；
    合并所述至少一个第二调制符号和所述至少一个第三调制符号中与所述第二位置对应的信息后进行解码。
  14. 根据权利要求12或13所述的方法，其特征在于，
    所述第三星座图中所述第一位置取值相同的多个星座点中星座点间的最小欧式距离大于第二星座图中星座点间的最小欧式距离；和/或，
    所述第三星座图中所述第二位置取值相同的多个星座点中星座点间的最小欧式距离大于第一星座图中星座点间的最小欧式距离。
  15. 根据权利要求12至14中任一项所述的方法，其特征在于，所述第一码字共包括L 个比特，所述第二码字共包括K个比特，
    若L>K，第三数据包中包括根据所述第三调制方式对第一码字中的K个比特和第二码字中的K个比特调制得到的2K/N个所述第三调制符号，以及所述第三数据包还包括根据所述第一调制方式或所述第三调制方式对所述第一码字中剩余L-K个比特调制得到的调制符号；或者，
    若L＜K，第三数据包中包括根据所述第三调制方式对第一码字中的L个比特和第二码字中的L个比特调制得到的2L/N个所述第三调制符号，以及所述第三数据包还包括根据所述第二调制方式或所述第三调制方式对所述第二码字中剩余K-L个比特调制得到的调制符号。
  16. 根据权利要求9至15中任一项所述的方法，其特征在于，所述方法还包括：
    获取第一配置信息，获取第一配置信息，所述第一配置信息用于指示所述第三数据包与所述第一数据包之间的关联关系，和/或，用于指示所述第三数据包与所述第二数据包之间的关联关系。
  17. 根据权利要求9至15中任一项所述的方法，其特征在于，向所述第二设备发送第三数据包，包括：
    向所述第二设备发送第一反馈信息和第二反馈信息后，接收所述第三数据包，
    其中，所述第一反馈信息用于指示未成功接收到所述第一数据包，所述第二反馈信息用于指示是未成功接收到所述第二数据包。
  18. 一种通信装置，其特征在于，包括处理器，所述处理器与存储器相连，所述存储器用于存储计算机程序，所述处理器用于执行所述存储器中存储的计算机程序，以使得所述通信装置执行如权利要求1至17中任一项所述的方法。
  19. 根据权利要求18所述的装置，其特征在于，所述处理器和所述存储器集成在一起。
  20. 一种通信装置，其特征在于，包括：逻辑电路和通信接口，其中，所述通信接口用于获取待处理的数据，和/或，输出所述处理后的数据，所述逻辑电路用于对待处理的数据得到处理后的数据，所述通信接口还用于输出所述处理后的数据，以使得所述通信装置执行权利要求1至17中任一项所述的方法。
  21. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，当所述计算机程序被运行时，实现如权利要求1至17中任一项所述的方法。
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