WO2019144812A1 - 基于加扰的数据传输方法 - Google Patents

基于加扰的数据传输方法 Download PDF

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Publication number
WO2019144812A1
WO2019144812A1 PCT/CN2019/071266 CN2019071266W WO2019144812A1 WO 2019144812 A1 WO2019144812 A1 WO 2019144812A1 CN 2019071266 W CN2019071266 W CN 2019071266W WO 2019144812 A1 WO2019144812 A1 WO 2019144812A1
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WO
WIPO (PCT)
Prior art keywords
scrambling
waveform
data
sequence
scrambled
Prior art date
Application number
PCT/CN2019/071266
Other languages
English (en)
French (fr)
Inventor
吴艺群
陈雁
王磊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19744044.9A priority Critical patent/EP3737011A4/en
Publication of WO2019144812A1 publication Critical patent/WO2019144812A1/zh
Priority to US16/935,627 priority patent/US11611967B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H04L5/0019—Time-frequency-code in which one code is applied, as a temporal sequence, to all frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H04L5/0021—Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a data transmission method and apparatus based on scrambling.
  • multiple access techniques can be introduced.
  • multiple terminals can be supported to access the same network device, and the network device performs data transmission.
  • multiple access may include orthogonal multiple access and non-orthogonal multiple access (NOMA);
  • NOMA non-orthogonal multiple access
  • multiple access may include code division multiple access (CDMA) ), time division multiple access (TDMA), frequency division multiple access (FDMA), and space division multiple access (SDMA).
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • SDMA space division multiple access
  • the present application provides a scrambling-based data transmission method, including: determining a scrambling mode according to a transmission waveform; scrambling the scrambled data according to the scrambling manner to obtain scrambled output data;
  • the scrambled output data is described.
  • the scrambling mode includes one or more of the following: frequency domain scrambling, time domain scrambling, or time-frequency domain scrambling.
  • the transmit waveform is a discrete Fourier extended orthogonal frequency division multiplexing DFT-s-OFDM waveform
  • the scrambling mode is time domain scrambling.
  • the scrambling mode is time domain scrambling, frequency domain scrambling or time-frequency domain scrambling.
  • the scrambling mode can be determined according to the transmission waveform, so that the data to be transmitted obtained based on the scrambling mode can have a peak-to-average power ratio (PAPR), or based on the scrambling method.
  • PAPR peak-to-average power ratio
  • the obtained data to be transmitted may not increase the PAPR of the data to be transmitted, thereby improving data transmission efficiency.
  • determining the scrambling manner according to the transmission waveform according to the first aspect includes: determining a scrambling manner according to a type of the transmission waveform and the pre-processing codebook.
  • the scrambling mode is frequency domain scrambling.
  • the transmission waveform is a DFT-s-OFDM waveform and the type of the pre-processed codebook is a spreading sequence
  • the scrambling mode is time domain scrambling.
  • the scrambling mode can be determined according to the type of the transmission waveform and the pre-processed codebook, so that the data to be transmitted obtained based on the scrambling mode and the pre-processed codebook can have a low peak-to-average power ratio (peak-to-average).
  • the power ratio (PAPR), or the data to be transmitted obtained based on the scrambling mode and the pre-processed codebook may not increase the PAPR of the data to be transmitted, thereby improving data transmission efficiency.
  • the scrambling data is scrambled according to the scrambling method to obtain scrambled output data, including: treating the scrambling sequence according to the scrambling method Scrambling the data for scrambling to obtain the scrambled output data, wherein the scrambling sequence is determined according to the first sequence, and the initial value of the first sequence is determined according to the UE group identifier of the UE, the scrambling The output data is data corresponding to the UE.
  • the transmission waveform can be determined based on the reference signal RS.
  • the transmission waveform may be determined according to the RS pattern configuration, the transmission waveform may be determined according to the sequence type or sequence value of the RS, and the transmission waveform may be determined according to the port of the RS.
  • the transmit waveform can also be determined based on the preprocessed codebook.
  • the transmitted waveform may be determined according to the preprocessed codebook and the correspondence between the transmit waveform and the preprocessed codebook.
  • the present application provides a scrambling-based data transmission method, including: receiving scrambled data; determining a scrambling manner according to a transmission waveform; and descrambling the received scrambled data according to the scrambling manner.
  • the scrambling mode includes one or more of the following: frequency domain scrambling, time domain scrambling, or time-frequency domain scrambling.
  • the transmission waveform is a discrete Fourier extended orthogonal frequency division multiplexing DFT-s-OFDM waveform
  • the scrambling mode is time domain scrambling.
  • the scrambling mode is time domain scrambling, frequency domain scrambling, or time-frequency domain scrambling.
  • determining the scrambling manner according to the transmission waveform comprises: determining the scrambling mode according to the transmission waveform and the type of the pre-processing codebook.
  • the scrambling mode is frequency domain scrambling.
  • the transmission waveform is a DFT-s-OFDM waveform and the type of the pre-processed codebook is a spreading sequence
  • the scrambling mode is time domain scrambling.
  • the second design descrambling the received scrambled data according to the scrambling manner, comprising: receiving the received based on the scrambling sequence according to the scrambling method Scrambling data is descrambled, wherein the scrambling sequence is determined according to a first sequence, an initial value of the first sequence is determined according to a UE group identifier of the UE, and the scrambling data is corresponding to the UE data.
  • the transmission waveform can be determined based on the reference signal RS.
  • the transmission waveform may be determined according to the RS pattern configuration, the transmission waveform may be determined according to the sequence type or sequence value of the RS, and the transmission waveform may also be determined according to the port of the RS.
  • the transmission waveform can also be determined based on the pre-processed codebook.
  • the transmission waveform can be determined according to the pre-processed codebook and the correspondence between the transmission waveform and the pre-processed codebook.
  • an embodiment of the present application provides an apparatus, including: a first determining module, configured to determine a scrambling manner according to a transmission waveform; and a scrambling module, configured to perform scrambling on the scrambled data according to the scrambling manner And obtaining scrambled output data; and a communication module, configured to send the scrambled output data.
  • the scrambling mode includes one or more of the following: frequency domain scrambling, time domain scrambling, or time-frequency domain scrambling.
  • the first determining module determines that the scrambling mode is time domain scrambling.
  • the transmit waveform is a cyclic prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveform
  • the first determining module determines that the scrambling mode is time domain scrambling, frequency domain scrambling, or time-frequency domain. Scrambled.
  • CP-OFDM Orthogonal Frequency Division Multiplexing
  • the determining, by the first determining module, the scrambling manner according to the transmitting waveform comprises: determining, by the first determining module, the scrambling manner according to the type of the transmitting waveform and the pre-processing codebook.
  • the transmit waveform is a CP-OFDM waveform and the type of the pre-processed codebook is a spread sequence
  • the first determining module determines that the scrambling mode is frequency domain scrambling.
  • the transmission waveform is a DFT-s-OFDM waveform and the type of the pre-processed codebook is a spreading sequence
  • the first determining module determines that the scrambling mode is time domain scrambling.
  • the scrambling module scrambles the scrambled data according to the scrambling manner to obtain scrambled output data, including: the scrambling module according to the Decoding mode, scrambling the scrambled data based on the scrambling sequence to obtain scrambled output data, wherein the scrambling sequence is determined according to the first sequence, and the initial value of the first sequence is according to the UE Determined by the UE group identifier, the scrambled output data is data corresponding to the UE.
  • the third design further comprising: a second determining module, configured to determine a transmit waveform.
  • the second determining module may determine the transmit waveform based on the reference signal RS.
  • the second determining module may determine the transmission waveform according to the RS pattern configuration, may also determine the transmission waveform according to the sequence type or sequence value of the RS, and may also determine the transmission waveform according to the port of the RS.
  • the second determining module may also determine the transmit waveform according to the pre-processed codebook.
  • the second determining module may determine the transmit waveform according to the pre-processed codebook and the correspondence between the transmit waveform and the pre-processed codebook.
  • the present application provides an apparatus that is capable of implementing one or more of the functions of the first aspect and the first aspect.
  • This function can be implemented in the form of hardware, software or hardware plus software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the apparatus includes a processor, a memory, and a transceiver. Wherein the memory is coupled to the processor, the processor executes the program instructions stored by the memory; the processor is coupled to the transceiver, and the processor transmits and/or receives signals through the transceiver.
  • the apparatus includes a processor and a memory. Wherein the memory is coupled to the processor, the processor executes the program instructions stored by the memory; the processor generates and transmits signals, and/or receives and processes the signals.
  • the processor is configured to determine a scrambling manner according to the transmitted waveform; the processor is further configured to scramble the scrambled data according to the scrambling manner, obtain scrambled output data, and send the scrambled output data.
  • the scrambling mode includes one or more of the following: frequency domain scrambling, time domain scrambling, or time-frequency domain scrambling.
  • the processor determines that the scrambling mode is time domain scrambling.
  • the processor determines that the scrambling mode is time domain scrambling, frequency domain scrambling, or time-frequency domain scrambling.
  • CP-OFDM cyclic prefix Orthogonal Frequency Division Multiplexing
  • the determining, by the processor, the scrambling manner according to the transmission waveform comprises: the processor determining the scrambling manner according to the type of the transmission waveform and the pre-processing codebook.
  • the processor determines that the scrambling mode is frequency domain scrambling.
  • the processor determines that the scrambling mode is time domain scrambling.
  • the processor scrambles the scrambled data according to the scrambling manner to obtain scrambled output data, including: the processor according to the scrambling mode, The scrambling data is scrambled based on the scrambling sequence to obtain the scrambled output data, wherein the scrambling sequence is determined according to the first sequence, and the initial value of the first sequence is determined according to the UE group identifier of the UE.
  • the scrambled output data is data corresponding to the UE.
  • the processor is further configured to determine a transmit waveform.
  • the processor can determine the transmit waveform based on the reference signal RS.
  • the processor may determine the transmit waveform according to the RS pattern configuration, or may determine the transmit waveform according to the sequence type or sequence value of the RS, and may also determine the transmit waveform according to the port of the RS.
  • the processor can also determine the transmit waveform based on the pre-processed codebook.
  • the processor may determine the transmit waveform based on the pre-processed codebook and the correspondence between the transmit waveform and the pre-processed codebook.
  • an embodiment of the present application provides an apparatus, including: a communication module, configured to receive scrambling data; a first determining module, configured to determine a scrambling mode according to a transmission waveform; and a descrambling module, configured to The scrambling method descrambles the received scrambled data.
  • the scrambling mode includes one or more of the following: frequency domain scrambling, time domain scrambling, or time-frequency domain scrambling.
  • the transmission waveform is a discrete Fourier extended orthogonal frequency division multiplexing DFT-s-OFDM waveform
  • the first determining module determines that the scrambling mode is time domain scrambling.
  • the first determining module determines that the scrambling mode is time domain scrambling, frequency domain scrambling or time-frequency domain. Scrambled.
  • CP-OFDM Orthogonal Frequency Division Multiplexing
  • the first determining module determines the scrambling manner according to the transmission waveform, and the first determining module determines the scrambling manner according to the transmission waveform and the type of the pre-processing codebook.
  • the transmission waveform is a CP-OFDM waveform and the type of the pre-processing codebook is a spreading sequence
  • the first determining module determines that the scrambling mode is frequency domain scrambling.
  • the transmission waveform is a DFT-s-OFDM waveform and the type of the pre-processed codebook is a spreading sequence
  • the first determining module determines that the scrambling mode is time domain scrambling.
  • the descrambling module descrambles the received scrambled data according to the scrambling manner, including: the descrambling module is configured according to the scrambling The method, the descrambling data is descrambled based on the scrambling sequence, wherein the scrambling sequence is determined according to the first sequence, and the initial value of the first sequence is determined according to the UE group identifier of the UE, The scrambled data is data corresponding to the UE.
  • a third design according to any one of the above aspects of the fifth aspect or the fifth aspect, further comprising: a second determining module, configured to determine a transmission waveform.
  • the second determining module may determine the transmission waveform according to the reference signal RS.
  • the second determining module may determine the transmission waveform according to the RS pattern configuration, may also determine the transmission waveform according to the sequence type or sequence value of the RS, and may also determine the transmission waveform according to the port of the RS.
  • the second determining module may also determine the transmission waveform according to the pre-processing codebook.
  • the second determining module may determine the transmission waveform according to the pre-processed codebook and the correspondence between the transmission waveform and the pre-processed codebook.
  • the present application provides an apparatus capable of implementing one or more of the functions of the second aspect and the second aspect.
  • This function can be implemented in the form of hardware, software or hardware plus software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the apparatus includes a processor, a memory, and a transceiver. Wherein the memory is coupled to the processor, the processor executes the program instructions stored by the memory; the processor is coupled to the transceiver, and the processor transmits and/or receives signals through the transceiver.
  • the apparatus includes a processor and a memory. Wherein the memory is coupled to the processor, the processor executes the program instructions stored by the memory; the processor generates and transmits signals, and/or receives and processes the signals.
  • the processor receives the scrambled data, determines a scrambling mode according to the transmission waveform, and descrambles the received scrambled data according to the scrambling manner.
  • the scrambling mode includes frequency domain scrambling, time domain scrambling or time-frequency domain scrambling.
  • the transmission waveform is a discrete Fourier extended orthogonal frequency division multiplexing DFT-s-OFDM waveform
  • the processor determines that the scrambling mode is time domain scrambling.
  • the processor determines that the scrambling mode is time domain scrambling, frequency domain scrambling, or time-frequency domain scrambling. .
  • CP-OFDM Orthogonal Frequency Division Multiplexing
  • the determining, by the processor, the scrambling manner according to the transmission waveform comprises: the processor determining the scrambling manner according to the transmission waveform and the type of the pre-processed codebook.
  • the processor determines that the scrambling mode is frequency domain scrambling.
  • the processor determines that the scrambling mode is time domain scrambling.
  • the processor descrambles the received scrambled data according to the scrambling manner, including: the processor is based on the scrambling method, based on The scrambling sequence descrambles the received scrambled data, wherein the scrambling sequence is determined according to the first sequence, and the initial value of the first sequence is determined according to the UE group identifier of the UE, and the adding The scrambling data is data corresponding to the UE.
  • the processor is further configured to determine a transmission waveform.
  • the processor can determine the transmission waveform based on the reference signal RS.
  • the processor may determine the transmission waveform according to the RS pattern configuration, or may determine the transmission waveform according to the sequence type or sequence value of the RS, and may also determine the transmission waveform according to the port of the RS.
  • the processor can also determine the transmission waveform based on the pre-processed codebook.
  • the processor may determine the transmission waveform based on the pre-processed codebook and the correspondence between the transmission waveform and the pre-processed codebook.
  • the present application provides a computer program product comprising instructions which, when executed on a computer, cause the computer to perform one or more of the first aspect and the first aspect of the design.
  • the present application provides a computer program product comprising instructions which, when executed on a computer, cause the computer to perform one or more of the second and second aspects of the design.
  • the present application provides a communication system comprising the apparatus of any of the third aspect or the third aspect, and the apparatus of any of the fifth or fifth aspects.
  • the present application provides a communication system comprising the apparatus of any of the fourth or fourth aspects, and the apparatus of any of the sixth or sixth aspects.
  • 3 is a flowchart of scrambling-based data transmission provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of pre-processing input data according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of pre-processing input data according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of pre-processing input data according to an embodiment of the present application.
  • FIG. 9 is a diagram showing an example of time-frequency resources provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of frequency domain scrambling provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of time domain scrambling provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of time-frequency domain scrambling provided by an embodiment of the present application.
  • FIG. 13 is a diagram showing an example of a reference signal pattern provided by an embodiment of the present application.
  • FIG. 14 is a diagram showing an example of a reference signal pattern provided by an embodiment of the present application.
  • 15 is a diagram showing an example of a reference signal pattern provided by an embodiment of the present application.
  • 16 is a schematic structural diagram of a device according to an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a device according to an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a device according to an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a device according to an embodiment of the present application.
  • 5G fifth generation mobile networks
  • LTE long term evolution
  • NR new radio
  • wireless communication can be performed between the communication devices using air interface resources.
  • the communication device may include a network device and a terminal device, and the network device may also be referred to as a network side device.
  • the air interface resource may include at least one of a time domain resource, a frequency domain resource, a code resource, and a space resource.
  • the terminal device in the embodiment of the present application may also be referred to as a terminal, and may be a device having a wireless transceiver function, which may be deployed on land, including indoor or outdoor, handheld or on-board, or may be deployed on the water surface (eg, Ships, etc.); can also be deployed in the air (such as airplanes, balloons, satellites, etc.).
  • the terminal device may be a user equipment (UE), wherein the UE includes a handheld device, an in-vehicle device, a wearable device, or a computing device having a wireless communication function.
  • the UE can be a mobile phone, a tablet, or a computer with wireless transceiving capabilities.
  • the terminal device may also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in an unmanned vehicle, a wireless terminal in telemedicine, and an intelligent device.
  • the device that implements the function of the terminal may be a terminal, or may be a device that supports the terminal to implement the function.
  • the device that implements the function of the terminal is a terminal, and the terminal is a UE as an example, and the technical solution provided by the embodiment of the present application is described.
  • the network device involved in the embodiment of the present application includes a base station (BS), and may be a device deployed in the radio access network to perform wireless communication with the terminal.
  • the base station may have various forms, such as a macro base station, a micro base station, a relay station, and an access point.
  • the base station in the embodiment of the present application may be a base station in the 5G or a base station in the LTE, where the base station in the 5G may also be referred to as a transmission reception point (TRP) or a gNB.
  • TRP transmission reception point
  • the device that implements the function of the network device may be a network device, or may be a device that supports the network device to implement the function.
  • the device that implements the function of the network device is a network device, and the network device is a base station as an example, and the technical solution provided by the embodiment of the present application is described.
  • Wireless communication between communication devices may include wireless communication between the network device and the terminal, wireless communication between the network device and the network device, and wireless communication between the terminal and the terminal.
  • wireless communication may also be simply referred to as “communication”
  • communication may also be described as “data transmission”, “information transmission” or “transmission”.
  • the communication device that transmits data may also be referred to as a transmitting end
  • the communication device that receives data may also be referred to as a receiving end.
  • the base station sends data to the UE.
  • the base station When the UE receives the data sent by the base station, the base station may also be referred to as a transmitting end, and the UE may also be referred to as a receiving end; the UE sends data to the base station, and the base station receives the data sent by the UE.
  • the UE may also be referred to as a transmitting end, and the base station may also be referred to as a receiving end.
  • the transmitting end may scramble the data to be transmitted based on the scrambling sequence to reduce interference between the transmitted data, and is used to improve the decoding accuracy of the receiving end, thereby improving the efficiency of data transmission.
  • the data sent by the sending end may be referred to as data to be sent
  • the data to be sent may be data that can be sent in the air interface, or the data that can be sent in the air interface after being processed, the present application No limitation is imposed;
  • the data to be transmitted that is scrambled when performing the scrambling process may also be referred to as data to be scrambled, scrambled input data, or other names, which is not limited in this application.
  • UE A and UE B can respectively scramble the respective data using different scrambling sequences, so that the interference between the data of UE A and UE B is reduced.
  • the UE A and the UE B respectively send the scrambled data to the base station, and when the base station demodulates the data of the UE A and the UE B, the decoding accuracy rate can be improved, thereby improving the system transmission efficiency.
  • the transmitting end may scramble and transmit various types of data to be scrambled, and the method may be referred to as scrambling-based data transmission.
  • Figure 1 shows a flow diagram of the sender scrambling and transmitting the bits.
  • the processing flow includes: forward error correction (FEC), scrambling, and modulation.
  • FEC forward error correction
  • scrambling scrambling
  • modulation modulation
  • the transmitting end encodes the input bit to obtain a coded output bit, so that the receiving end can detect the error or can correct the error, thereby enhancing the reliability of the data transmission.
  • the input bits can be encoded using forward error correction codes commonly used in the art.
  • the commonly used forward error correction code may be a convolutional code, a block code, a Turbo code, an LDPC (Low density parity check) code, or a Polar code.
  • the coded output bit sequence is scrambled by a scrambling sequence to obtain a scrambled output bit sequence.
  • the scrambling of the encoded output bit sequence by the scrambling sequence may include adding the scrambling sequence and the encoded output bit sequence, or multiplying the scrambling sequence and the encoded output bit sequence.
  • Figure 1 shows the addition of a scrambling sequence and an encoded output bit sequence.
  • the coded output bit sequence includes one or more coded output bits
  • the scrambled output bit sequence includes one or more scrambled output bits
  • the scrambling sequence may include one or more bits.
  • at least one may include one or more, and the plurality may include two, three, four or more, which is not limited in the application.
  • the transmitting end modulates the scrambled bits according to the modulation mechanism to obtain a modulation symbol.
  • the modulation mechanism may also be referred to as a modulation method or other name, which is not limited in this application.
  • the modulation mechanism may include quadrature amplitude modulation (QAM), and the QAM modulation may include binary phase shift keying (BPSK), quadrature phase shift keying (quadrature phase shift keying, At least one of QPSK), 16QAM, 64QAM, 256QAM, and 1024QAM.
  • the transmitting end can send the modulation symbol to the receiving end.
  • FIG. 2 is a flow chart showing the scrambling and transmission of symbols by the transmitting end.
  • the processing flow scrambles the input symbol sequence to obtain a scrambled output symbol sequence, and the scrambled output symbol sequence includes one or more scrambled output symbols, and the transmitting end can scramble the output symbol sequence.
  • the symbol is sent to the receiving end.
  • the symbol in the input symbol sequence is a complex number, which may be various types of symbols. Illustratively, it may be a modulated modulation symbol or a pre-processed pre-processed output symbol, which is not limited in this application.
  • One or more complex symbols can be included in the scrambling sequence.
  • Scrambling the input symbol sequence can include adding the scrambling sequence to the input symbol sequence or multiplying the scrambling sequence and the input symbol sequence.
  • Figure 2 shows multiplying the scrambling sequence and the input symbol sequence.
  • the scrambling sequence and the data sequence to be scrambled may be added.
  • the scrambling sequence is Scrambling sequence
  • the data sequence to be scrambled may also be referred to as a sequence to be scrambled or other names, which is not limited in this application.
  • the scrambling sequence and the data sequence to be scrambled may also be multiplied.
  • the scrambling sequence and the to-be-scrambled sequence may also be performed.
  • the operations or processing other than addition and multiplication are performed to obtain a scrambled output sequence, which is not limited in this application.
  • the embodiment of the present application provides a corresponding technical solution for improving system transmission. Rate, which can support higher traffic.
  • the technical solution provided by the embodiment of the present application can be applied to wireless communication between various communication devices.
  • the technical solution provided by the embodiment of the present application may be applied to uplink transmission between a base station and a UE, downlink transmission between a base station and an UE, uplink transmission between a macro base station and a micro base station, and downlink transmission between a macro base station and a micro base station.
  • D2D device to device
  • V2V vehicle to vehicle
  • FIG. 3 shows a method for data transmission based on scrambling provided by an embodiment of the present application.
  • the transmitting end determines a scrambling manner according to the transmitted waveform.
  • the transmitting end may send the data to be sent by using a waveform.
  • the waveform used by the transmitting end may also be referred to as a sending waveform, a transmission waveform, a waveform, or other names, which is not limited in this application.
  • the transmit waveform may be a discrete fourier transform spreading OFDM (orthogonal frequency division multiplexing) (DFT-s-OFDM) waveform or a cyclic prefix orthogonal frequency division multiplexing (cyclic). Prefix orthogonal frequency division multiplexing (CP-OFDM) waveform.
  • DFT-s-OFDM waveform may also be simply referred to as DFT-s-OFDM
  • the CP-OFDM waveform may also be simply referred to as CP-OFDM.
  • the transmitting end scrambles the scrambled data according to the scrambling manner to obtain scrambled output data.
  • the transmitting end sends the scrambled output data to the receiving end.
  • the receiving end receives the scrambled data, and determines a scrambling manner according to the transmission waveform.
  • the sending end sends the scrambled output data to the receiving end
  • the scrambled output data may also be referred to as scrambling data or other names at the receiving end, which is not limited in this application.
  • the receiving end may receive the data by using the transmission waveform, where the transmission waveform is the same as the transmitting waveform, and the transmission waveform at the receiving end may also be referred to as receiving.
  • Waveform or other names are not limited in this application.
  • the transmission waveform in 304 is the same as the transmission waveform in 301.
  • the method for determining the scrambling mode according to the transmission waveform by the receiving end in 304 may be the same as the method of determining the scrambling mode according to the transmitting waveform by the transmitting end in 301.
  • the receiving end descrambles the received scrambled data according to the scrambling manner.
  • the scrambling mode may be determined according to the transmission waveform, so that the data to be transmitted obtained based on the scrambling mode may have a low peak-to-average power ratio (peak-to-average power ratio). , PAPR), or the data to be transmitted obtained based on the scrambling method may not increase the PAPR of the data to be transmitted, thereby improving data transmission efficiency.
  • PAPR peak-to-average power ratio
  • the scrambling mode may include at least one of frequency domain scrambling, time domain scrambling, and time-frequency domain scrambling; the data to be scrambled may be a bit or a complex symbol, and the data to be scrambled is further It may be referred to as input data or another name, and the application is not limited.
  • the technical solution provided by the embodiment of the present application is described by taking the complex data to be scrambled as an example.
  • the scrambling mode when the scrambling mode is determined according to the transmission waveform, if the transmission waveform is a DFT-s-OFDM waveform, the scrambling mode may be time domain scrambling. In the method provided by the embodiment of the present application, when the scrambling mode is determined according to the transmission waveform, if the transmission waveform is a CP-OFDM waveform, the scrambling mode may be time domain scrambling, frequency domain scrambling, or time-frequency domain scrambling.
  • the scrambling method is a complementary cumulative distribution function (CCDF) of the PAPR of the data to be transmitted before and after scrambling in the frequency domain scrambling.
  • CCDF complementary cumulative distribution function
  • the CCRF of the PAPR can indicate the probability that the PAPR exceeds a certain threshold.
  • frequency domain scrambling will increase the PAPR of the data to be transmitted.
  • the transmission waveform is a DFT-s-OFDM waveform.
  • the scrambling method is the CCDF of the PAPR of the data to be transmitted before and after the scrambling in the time domain scrambling. As shown in Figure 4(b), time domain scrambling does not increase the PAPR of the data to be transmitted. Therefore, if the transmitted waveform is a DFT-s-OFDM waveform, time domain scrambling can be employed.
  • the result shown in FIG. 4 is a simulation result obtained in a specific scenario.
  • the waveform determines the specific design of the scrambling mode, and the remaining specific designs are also within the scope of the present application.
  • the transmitting end may preprocess the preprocessed input data, obtain preprocessed output data, and send the preprocessed output data to the receiving end.
  • the transmitting end is the UE
  • different UEs may map the respective pre-processed output data to the same resource element for transmission, and the pre-processed output data of different UEs may be non-orthogonal
  • the base station may The resource element receives a superposition of a plurality of non-orthogonal pre-processed output data; if the transmitting end is a base station, the base station may map the pre-processed output data of different UEs to the same resource element for transmission, and pre-process output of different UEs.
  • the data is non-orthogonal.
  • the sending end may perform other processing on the pre-processed output data before the resource mapping (the data to be sent is mapped to the resource element), which is not limited in the application; for example, the other processing may include one or more of the following: : Layer mapping and precoding.
  • the pre-processed input data when the sending end performs pre-processing on the pre-processed input data, the pre-processed input data may be pre-processed using the pre-processed codebook to obtain pre-processed output data, and the pre-processed output data is sent to the receiving end.
  • the type of the pre-processed codebook includes an extended sequence, an extended matrix, or a set of extended sequences.
  • the pre-processed input data can be various types of data, such as bits or complex symbols. If the pre-processed input data is a complex symbol, it may be a modulation symbol or other type of complex symbol, which is not limited in this application. If the pre-processed input data is a complex symbol, the corresponding pre-processed output data may also be referred to as a pre-processed output symbol or other name, which is not limited in this application.
  • the pre-processed corresponding extended sequence is multiplied by the pre-processed input data, and may also be described as pre-processed output data equal to the extended sequence multiplied by the pre-processed input data.
  • the pre-processed output data obtained by performing the pre-processing may also be referred to as a pre-processing unit or other name, which is not limited in this application.
  • Figure 5 is a schematic diagram of pre-processing input data according to a spreading sequence.
  • the pre-processed input data is two modulation symbols, which are 1 and -1, respectively, and the spreading sequence is [1, j, -1, -j] T .
  • preprocessing the modulation symbol -1 to obtain the preprocessed output data [-1, -j, 1, j ] T are two modulation symbols, which are 1 and -1, respectively
  • the spreading sequence is [1, j, -1, -j] T .
  • the pre-processed codebook is an extension matrix of N1 rows and N2 columns
  • the pre-processing corresponding extension matrix is multiplied by the pre-processed input data
  • the pre-processed input data includes N2 data.
  • Figure 6 is a diagram showing the pre-processing of pre-processed input data according to an extension matrix.
  • the extension matrix is W in 4 rows and 2 columns
  • the preprocessed input data is a modulation symbol sequence [1, -1]
  • the matrix W is multiplied by the preprocessed input data to obtain preprocessed output data [0, 0, 2,0].
  • the pre-processing if the pre-processing codebook is a set of extended sequences including S spreading sequences, the pre-processing correspondingly maps the pre-processed input data into one extended sequence of the S spreading sequences.
  • the pre-processing output may be determined according to the pre-processed input data and the mapping relationship between the pre-processed input data and the extended sequence in the S spread sequences. data. Where S is a positive integer.
  • FIG. 7 is an exemplary diagram of pre-processing the pre-processed input data according to the extended sequence set.
  • the extended sequence set includes extended sequences [1, j, -1, -j], [1, -j, -1, j], [-1, -j, 1, j] and [ -1, j, 1, -j].
  • the preprocessed input data may have a value of x1, x2, x3 or x4, and the correspondence between the modulation symbol and the extended sequence in the extended sequence set is as shown in FIG.
  • the spreading sequence corresponding to the modulation symbol x1 is [1, j, - 1,-j]
  • the spreading sequence corresponding to the modulation symbol x2 is [1, -j, -1, j]
  • the spreading sequence corresponding to the modulation symbol x3 is [-1, -j, 1, j]
  • the modulation symbol x4 corresponds to The spreading sequence is [-1, j, 1, -j]. If the pre-processed input data is x1, the pre-processed output symbols are determined to be [1, j, -1, -j] according to x1 and the correspondence between the modulation symbols and the spreading sequences in the set of extended sequences.
  • determining the scrambling manner according to the transmission waveform may include: determining a scrambling manner according to the type of the transmission waveform and the pre-processing codebook.
  • the transmitting end may perform pre-processing and then perform scrambling, or may perform scrambling and then pre-processing, and may perform scrambling and pre-processing at the same time, which is not limited in this application.
  • the transmitted waveform is a CP-OFDM waveform and the type of the pre-processed codebook is a spreading sequence
  • the scrambling mode is frequency domain scrambling.
  • the scrambling mode is time domain scrambling.
  • the data to be transmitted based on the scrambling mode and the pre-processed codebook may have a low peak-to-average power ratio PAPR, or the data to be transmitted obtained based on the scrambling mode and the pre-processed codebook may not increase the data to be transmitted. PAPR, which improves data transfer efficiency.
  • the pre-processed codebook is an extended sequence [1, 1, 1, 1] used for data transmission in the frequency domain.
  • the resource is 6 RBs.
  • Figure 8(a) shows the CCDF of the PAPR of the data to be transmitted before and after scrambling when the transmit waveform is a CP-OFDM waveform and the scrambling method is frequency domain scrambling. As shown in Figure 8(a), frequency domain scrambling will reduce the PAPR of the data to be transmitted.
  • the pre-processed codebook is an extended sequence [1, 1, 1, 1] and used for data transmission in the frequency domain.
  • the resource is 6 RBs.
  • Figure 8(b) shows the CCDF of the PAPR of the data to be transmitted before and after scrambling when the transmit waveform is a DFT-s-OFDM waveform and the scrambling method is time domain scrambling. As shown in FIG. 8(b), time domain scrambling does not increase the PAPR of the data to be transmitted.
  • the result shown in FIG. 8 is a simulation result obtained in a specific scenario.
  • the scene changes it is also possible to obtain a result different from the result shown in FIG. 8, so that the remaining transmission according to the result can also be obtained.
  • the type of waveform and pre-processing codebook determines the specific design of the scrambling mode, and the remaining specific designs are also within the scope of the present application.
  • the transmitting end and the receiving end can perform data transmission on the air interface resource
  • the air interface resource can include time domain resources, frequency domain resources, and time-frequency resources.
  • a spatial resource wherein the time-frequency resource can also be described as a time domain resource and a frequency domain resource.
  • the sender and the receiver can perform data transmission in a resource element (RE).
  • Figure 9 shows an example diagram of time-frequency resources. As shown in FIG.
  • the minimum unit used for data transmission in the time-frequency resource may be an RE, and the time-frequency resource may include a positive integer number of REs, one RE corresponds to one symbol in the time domain, and one frequency domain corresponds to one sub-carrier.
  • the TTI may include a positive integer number of time units, and the time unit includes symbols, time slots, mini-slots, subframes, frames, or other time units commonly used in the field, which is not limited in this application.
  • the sending end scrambling the scrambled data according to the scrambling manner may include: the transmitting end scrambles the scrambled data by using the scrambling sequence according to the scrambling manner. Further, the scrambling sequence can also be used for descrambling at the receiving end.
  • FIG. 10 is a diagram showing an example of scrambling a scrambled data using a scrambling sequence when the scrambling method is frequency domain scrambling, wherein the TTI includes OFDM symbols, the data to be scrambled is a complex symbol.
  • the scrambling sequence includes A subsequence, one subsequence corresponding to a symbol in the TTI, used to scramble the data to be scrambled transmitted in the symbol.
  • the The ith sequence in the subsequence is The The length of any two subsequences in the subsequences may be the same or different, and is not limited in this application.
  • Figure 10(b) shows the subsequence based on An example diagram of scrambling data to be scrambled for transmission of an ith symbol in a TTI, where As shown in FIG. 10(b), the K i to be scrambled data transmitted by the transmitting end in the ith symbol can be expressed as Where K i is a positive integer, and one of the K i pieces of data to be scrambled is transmitted in one RE of the ith symbol.
  • FIG. 11 is a diagram showing an example of scrambling a scrambled data using a scrambling sequence when the scrambling method is time domain scrambling, wherein the TTI includes Symbol, the data to be scrambled is a complex symbol, and the length of the scrambling sequence is For the i-th element in the scrambling sequence,
  • the data to be scrambled is included Subsequence, this
  • the ith sequence in the subsequence is The The length of any two subsequences in the subsequences may be the same or different, and is not limited in this application.
  • the data in the TTI is transmitted in the RE corresponding to the i-th OFDM symbol in the TTI, where One of the data is transmitted in one RE corresponding to the i-th OFDM symbol.
  • the data in the data is scrambled to get Corresponding scrambled output data.
  • the scrambled data When performing time-frequency domain scrambling, the scrambled data may be scrambled by performing time domain scrambling and then frequency domain scrambling, or by performing frequency domain scrambling and then time domain scrambling.
  • the scrambled data is scrambled to obtain scrambled data data, and the scrambled data can be scrambled by performing both frequency domain scrambling and time domain scrambling.
  • This application does not limit the present invention.
  • the scrambling method in performing time domain scrambling is the same as the corresponding description in the method in FIG. 11, and the scrambling method in performing frequency domain scrambling is corresponding to the description in the method in FIG.
  • FIG. 12 is a diagram showing an example of scrambling a scrambling data using a scrambling sequence when the scrambling method is time-frequency domain scrambling.
  • first performing time domain scrambling and then performing frequency domain scrambling including in the TTI
  • the symbols to be scrambled are complex symbols
  • the scrambling sequence includes a time domain scrambling sequence and a frequency domain scrambling sequence.
  • the length of the time domain scrambling sequence is The i-th element in the time domain scrambling sequence is
  • the time domain scrambling sequence of FIG. 12 may be the same as or different from the scrambling sequence of FIG. 11 and is not limited in this application.
  • the ith sequence in the subsequence is The The length of any two subsequences in the subsequences may be the same or different, and is not limited in this application.
  • the frequency domain scrambling sequence of FIG. 12 may be the same as or different from the scrambling sequence of FIG. 10, which is not limited in this application.
  • this The ith sequence in the subsequence is The The length of any two subsequences in the subsequences may be the same or different, and is not limited in this application.
  • frequency domain scrambling is performed on the time domain scrambled output data to obtain scrambled output data.
  • the scrambling sequence may be determined according to an initial value of the first sequence, wherein the first sequence is used to determine the scrambling sequence.
  • the length of the scrambling sequence is L
  • sequence c is a Gold sequence
  • value in the sequence c can also be described as c(n)
  • c(n) can be equal to the modulo 2 addition of at least 2 m sequences, exemplarily:
  • x 1 (n+31) (x 1 (n+3)+x 1 (n+2)+x 1 (n+1)+x 1 (n)) mod 2
  • the initial value of the first m-sequence x 1 can be determined according to the needs of the application scenario.
  • UEs belonging to different cells adopt different initial values, which can reduce interference between different cells.
  • different UEs belonging to the same cell adopt different initial values, which can reduce interference between different UEs in the same cell.
  • the initial value of the second m sequence is pre-configured, the initial value of the first m sequence is determined according to the requirements of the application scenario, and the value of the scrambling sequence depends on the selection of the initial value of the first m sequence, that is, The scrambling sequence is determined based on the initial value of the first m sequence.
  • the m sequence can be used for other names, which are not limited in this application.
  • the second method of determining the scrambling sequence when the scrambling sequence length L is 12, according to the uth line in Table 1.
  • the initial value of the first sequence can be determined by any one of the following first initial value determination mode to the third initial value determination mode.
  • the first initial value determination method :
  • the initial value of the first sequence is determined based on the cell identity and the first time unit identity.
  • the base station when the base station and the UE perform data transmission, the base station may manage at least one cell, and there may be X UEs in one cell, and the user may perform data transmission in the cell and the base station.
  • X is an integer greater than or equal to zero.
  • the base station manages three cells, which are the cell A, the cell B, and the cell C, and the cell A has the UE 1A and the UE 2A (may also be described as: the cell where the UE 1A and the UE 2A are located is the cell A.
  • the cell B there is a UE 1B (which can also be described as: the cell in which the UE 1B is located as the cell B), and the cell C has the UE 1C and the UE 2C (which can also be described as: the cell in which the UE 1C and the UE 2C are located is the cell C) ).
  • the UE 1A and the UE 2A may perform data transmission in the cell A and the base station, and the UE 1B may perform data transmission in the cell B and the base station, and the UE 1C and the UE 2C may perform data transmission in the cell C and the base station.
  • the initial value of the first sequence is determined according to the cell identifier of the cell and the first time unit identifier, where the first time unit identifier Is an identifier or index corresponding to the first time unit for transmitting the scrambled output data.
  • the first time unit may be any type of time unit described in the embodiment of the present application. To simplify the description, the first initial value determining manner is described by taking the first time unit as a time slot as an example.
  • the initial value of the first sequence may be among them,
  • n s is the index corresponding to the time slot used to transmit the scrambled output data.
  • n s is the index corresponding to the time slot used to transmit the scrambled output data.
  • the second initial value determination method is the second initial value determination method
  • the initial value of the first sequence is determined according to the cell identity, the UE identity, and the first time unit identity.
  • the initial value of the first sequence is determined according to the cell identifier of the cell, the UE identifier of the UE, and the first time unit identifier, where
  • the first time unit identifier is an identifier or an index corresponding to the first time unit for transmitting the scrambled output data.
  • the first time unit may be any type of time unit described in the embodiment of the present application.
  • the second initial value determining manner is described by taking the first time unit as a time slot as an example.
  • the initial value of the first sequence may be among them,
  • n s is an index corresponding to a time slot for transmitting the scrambled output data
  • n RNTI is a UE identifier.
  • the initial value of the first sequence may also be among them,
  • n s is an index corresponding to a time slot for transmitting the scrambled output data
  • n RNTI is a UE identifier.
  • the third initial value determination method is a third initial value determination method
  • the initial value of the first sequence is determined according to the cell identifier, the UE group identifier, and the first time unit identifier.
  • the UE group identifier is used to identify the UE group in which the UE is located, and one UE group includes one or more UEs, and one cell may include one or more UE groups.
  • the first time unit identifier is an identifier or an index corresponding to the first time unit for transmitting the scrambled output data.
  • the first time unit may be any type of time unit described in the embodiment of the present application.
  • the second initial value determining manner is described by taking the first time unit as a time slot as an example.
  • the initial value of the first sequence may be among them,
  • n s is an index corresponding to a time slot for transmitting the scrambled output data
  • n G-RNTI is a UE group identifier.
  • the initial value of the first sequence may also be among them,
  • n s is an index corresponding to a time slot for transmitting the scrambled output data
  • n G-RNTI is a UE group identifier.
  • the method may further include: the sending end determines a sending waveform, and the sending waveform may be used to send the scrambled output data.
  • the transmitting end may determine the transmitting waveform based on at least one of the following first transmitting waveform determining manner to the third transmitting waveform determining manner.
  • the first way to send waveforms is determined :
  • the transmitting end can determine the transmitted waveform in a preconfigured manner. If the technical solution provided by the embodiment of the present application is used for communication between the base station and the UE, at least one of an uplink transmission waveform and a downlink transmission waveform may be pre-configured.
  • the uplink transmission waveform is used by the UE to send data to the base station, and the downlink transmission waveform is used by the base station to send data to the UE.
  • the uplink transmit waveform can be pre-configured as a DFT-s-OFDM waveform.
  • the downlink transmit waveform can be pre-configured as a CP-OFDM waveform.
  • the second way to determine the waveform is :
  • the base station may send data to the UE by using a CP-OFDM waveform or a DFT-s-OFDM waveform.
  • the base station can determine the transmit waveform and notify the UE of the determined transmit waveform.
  • the base station can determine the transmit waveform based on the channel quality between the base station and the UE. For example, the base station can measure the channel quality between the base station and the UE, and the base station can also receive the channel quality between the base station and the UE reported by the UE, and the base station determines the transmission waveform according to the channel quality. If the channel quality is greater than a threshold or greater than or equal to a threshold, the base station determines that the transmission waveform is CP-OFDM; if the channel quality is less than or equal to a threshold or less than a threshold, the base station determines that the transmission waveform is DFT-s-OFDM.
  • the base station can notify the UE of the transmission waveform in any of the following manners 2A to 2D.
  • the base station may send signaling to the UE, and send waveform information to the UE by using signaling, where the waveform information is used to indicate a transmission waveform.
  • the transmitted waveform is a CP-OFDM waveform; if the waveform information is 1, the transmitted waveform is a DFT-s-OFDM waveform.
  • the waveform information is 1, the transmitted waveform is a CP-OFDM waveform; if the waveform information is 0, the transmitted waveform is a DFT-s-OFDM waveform.
  • the signaling may be high layer signaling or physical layer signaling.
  • the high layer signaling may be radio resource control (RRC) signaling, broadcast message, system message or medium access control (MAC) control element (CE).
  • RRC radio resource control
  • MAC medium access control
  • CE medium access control
  • the physical layer signaling may be the signaling carried by the physical control channel or the signaling carried by the physical data channel, where the signaling carried by the physical control channel may be the signaling carried by the physical downlink control channel and the enhanced physical downlink control channel (enhanced physical The signaling carried by the downlink control channel (EPDCCH), the signaling carried by the narrowband physical downlink control channel (NPDCCH), or the machine type communication (MTC) physical downlink control channel (MPDCCH) ) Signaling carried.
  • EPCCH downlink control channel
  • NPDCCH narrowband physical downlink control channel
  • MTC machine type communication
  • the signaling carried by the physical downlink control channel may also be referred to as downlink control information (DCI).
  • DCI downlink control information
  • the signaling carried by the physical control channel may also be the signaling carried by the physical sidelink control channel, and the signaling carried by the physical secondary link control channel may also be referred to as the sidelink control information. , SCI).
  • the base station may send a reference signal to the UE, and the UE receives the reference signal, and determines the transmission waveform according to a reference signal (RS).
  • RS reference signal
  • the RS is mainly used for performing channel estimation or channel measurement, and may also be referred to as a pilot or other name, which is not limited in this application.
  • the reference signal may be transmitted for channel state estimation or channel measurement, and the base station and the UE may perform data transmission based on the estimated channel state or channel measurement amount, thereby improving data transmission. rate.
  • the base station when the base station and the UE perform downlink data transmission, the base station sends a channel state information reference signal (CSI-RS) to the UE.
  • the UE performs channel estimation according to the received CSI-RS, and the UE sends the estimated channel state information to the base station.
  • the base station can send downlink data to the UE according to the channel state corresponding to the channel state information, so that the downlink data transmission rate can be improved.
  • the CSI-RS is a reference signal that is sent by the gNB to the UE, and is used for downlink channel estimation or downlink channel measurement, and may also be referred to as a downlink reference signal or other name, which is not limited in this application.
  • the reference signal used for performing downlink channel estimation may further include at least one of a cell-specific reference signal (CRS) and a downlink demodulation reference signal (DMRS).
  • CRS cell-specific reference signal
  • DMRS downlink demodulation reference signal
  • the UE when the base station and the UE perform uplink data transmission, the UE sends a sounding reference signal (SRS) to the base station.
  • SRS sounding reference signal
  • the base station performs channel estimation according to the received SRS, and determines a transmission parameter according to the estimated channel state, and the base station may send the transmission parameter to the UE.
  • the UE receives the transmission parameter sent by the base station, and sends the uplink data to the base station according to the transmission parameter.
  • the UE can be configured to send uplink data to the base station according to the channel state matching, thereby improving the uplink data transmission rate.
  • the SRS is a reference signal that is sent by the UE to the base station, and is used for performing uplink channel estimation or uplink channel measurement, and may also be referred to as an uplink reference signal or other name, which is not limited in this application. Further, the reference signal used for performing uplink channel estimation may further include an uplink DMRS.
  • determining a transmission waveform according to a reference signal by way of example, it may be based on RS
  • the pattern configuration determines the transmitted waveform.
  • the base station may determine, according to the reference signal pattern, the RE for transmitting the reference signal in units of resource granularity corresponding to the reference signal pattern, and The RE sends a reference signal to the UE.
  • Figure 13 is a diagram showing an example of a first reference signal pattern.
  • the resource granularity corresponding to the reference signal pattern includes 24 REs, and the 24 REs correspond to 12 subcarriers in the frequency domain and 2 symbols in the time domain.
  • the RE for transmitting the reference signal is filled with oblique lines, which appear in the frequency domain as a comb-like distribution with an interval of 2.
  • the configuration of the comb-like distributed reference signal pattern may have one or more.
  • the starting frequency domain position of the RE for transmitting the reference signal is the 0th subcarrier, and the interval of the adjacent REs for transmitting the reference signal is 2 in the frequency domain.
  • the starting frequency domain position of the RE for transmitting the reference signal is the first subcarrier, and the interval of the adjacent REs for transmitting the reference signal in the frequency domain is 2 .
  • Figure 14 is a diagram showing an example of a second reference signal pattern.
  • the resource granularity corresponding to the reference signal pattern includes 24 REs, and the 24 REs correspond to 12 subcarriers in the frequency domain and 2 symbols in the time domain.
  • the RE for transmitting the reference signal is padded with oblique lines, which is the RE corresponding to 2 consecutive subcarriers in every 6 subcarriers in the frequency domain.
  • the configuration of the second reference signal pattern may have one or more.
  • the RE for transmitting the reference signal is the RE corresponding to the fourth and fifth subcarriers. As shown in FIG.
  • the RE for transmitting the reference signal in the reference signal pattern, among every six subcarriers in the frequency domain, the RE for transmitting the reference signal is the RE corresponding to the second and third subcarriers.
  • the RE for transmitting the reference signal in the reference signal pattern, among every six subcarriers in the frequency domain, is the RE corresponding to the 0th and 1st subcarrier.
  • the base station may determine the reference signal pattern according to the transmission waveform, determine an RE for transmitting the reference signal according to the reference signal pattern, and map the reference signal to the RE for transmitting the reference signal, in the RE direction.
  • the UE transmits a reference signal.
  • the UE receives the reference signal and determines a corresponding transmit waveform according to the reference signal pattern.
  • the UE may determine the correspondence between the reference signal pattern and the transmission waveform according to the pre-configuration; or may receive the signaling sent by the base station, and determine the correspondence between the reference signal pattern and the transmission waveform by using the signaling.
  • the embodiment of the present application does not limit the correspondence between the reference signal pattern and the transmission waveform.
  • the reference signal pattern is a first reference signal pattern; when the transmission waveform is a DFT-s-OFDM waveform, the reference signal pattern is configured as a second reference signal pattern.
  • the first reference signal pattern may be the reference signal pattern shown in FIG. 13
  • the second reference signal pattern may be the reference signal pattern shown in FIG.
  • the UE may determine the transmit waveform based on the sequence type or sequence value of the reference signal. According to the method, the reference can be made The PAPR or interference characteristics of the signal sequence can meet the requirements of the transmitted waveform and improve the transmission efficiency.
  • RS reference signal
  • the reference signal may be represented as a sequence
  • the sequence type of the reference signal may be a PN (pseudo noise) sequence, a ZC (Zadoff-Chu) sequence, or any other type of sequence, which is not limited in the present application.
  • the sequence of the reference signal transmitted by the base station to the UE is a PN sequence
  • the transmission waveform is a DFT-s-OFDM waveform
  • the sequence of the reference signal transmitted by the base station to the UE is ZC. sequence.
  • the UE receives the reference signal sent by the base station. If the sequence of the reference signal is a PN sequence, the UE determines that the transmission waveform is a CP-OFDM waveform. If the sequence of the reference signal is a ZC sequence, the UE determines that the transmission waveform is a DFT-s-OFDM waveform.
  • the sequence of the reference signals transmitted by the base station to the UE is a ZC sequence; when the transmission waveform is a DFT-s-OFDM waveform, the sequence of the reference signals transmitted by the base station to the UE is PN sequence.
  • the UE receives the reference signal sent by the base station. If the sequence of the reference signal is a ZC sequence, the UE determines that the transmission waveform is a CP-OFDM waveform. If the sequence of the reference signal is a PN sequence, the UE determines that the transmission waveform is a DFT-s-OFDM waveform.
  • the UE may determine the transmit waveform according to the port of the reference signal.
  • RS reference signal
  • the base station and the UE perform data transmission through the channel, and one base station and one UE can perform data transmission through at least one channel.
  • One channel may correspond to one antenna port, and symbols transmitted through one antenna port may be inferred from other symbols transmitted through the antenna port.
  • the base station and the UE may transmit RS and other data through one antenna port, which may be used for channel estimation, which may be used to demodulate other data transmitted at the antenna port.
  • multiple RSs may be configured, and each of the multiple RSs may correspond to one antenna port.
  • Fig. 15 shows an example of a reference signal pattern of a 2-antenna port.
  • the resource granularity corresponding to the reference signal pattern includes 288 REs, and the 288 REs correspond to 12 subcarriers in the frequency domain and 14 symbols in the time domain.
  • the RE for transmitting the reference signal is filled with oblique lines.
  • the RE for transmitting the reference signal labeled as (0) in FIG. 15(a) corresponds to the antenna port 0, and the RE for transmitting the reference signal labeled as (1) in FIG. 15(a) corresponds to the antenna port 1.
  • the number of antenna ports may also be other positive integers, and the reference signal pattern may also be other patterns, which is not limited in this application.
  • Fig. 15(b) shows an example of a reference signal pattern of a 2-antenna port.
  • the two antenna ports are antenna port 0 and antenna port 1, respectively.
  • the resource granularity corresponding to the reference signal pattern includes 288 REs, and the 288 REs correspond to 12 subcarriers in the frequency domain and 14 symbols in the time domain.
  • the REs for transmitting the reference signals of the antenna port 0 and the antenna port 1 are filled with oblique lines, and the resource positions of the antennas of the antenna port 0 and the antenna port 1 are the same, and the antenna port is the same. 0 and the sequence value of the RS of the antenna port 1 are different.
  • the number of antenna ports may also be other positive integers, and the reference signal pattern may also be other patterns, which is not limited in this application.
  • the sequence values of the multiple RSs may be distinguished by an OCC (orthogonal cover code) code.
  • OCC orthogonal cover code
  • the sequence value of RS corresponding to two REs for transmitting RS corresponding to one subcarrier: antenna port 0 is The OCC code [1,1] is multiplied by the symbol a, that is, the values of the RSs transmitted in the two REs are the same, respectively, a and a; the sequence value of the RS corresponding to the antenna port 1 is the OCC code [1, -1] times. Multiply by the symbol a, that is, the opposite of the RS transmitted by the two REs, a and -a, respectively. Where a is a plural number.
  • a plurality of RSs corresponding to one reference signal pattern may include an RS with the same resource location or an RS with different resource locations, which is not limited in this application.
  • the base station may determine an antenna port according to the transmission waveform and a correspondence between the transmission waveform and the antenna port, and send the RS to the UE at the antenna port.
  • the UE receives the RS, and determines the transmission waveform according to the antenna port corresponding to the RS and the correspondence between the transmission waveform and the antenna port.
  • the correspondence between the transmit waveform and the antenna port may be: when the transmit waveform is a CP-OFDM waveform, the antenna port is the first antenna port; when the transmit waveform is a DFT-s-OFDM waveform, the antenna port is the second antenna port.
  • the first antenna port is different from the second antenna port.
  • Table 2 shows the correspondence between the transmit waveform and the antenna port. If the transmission waveform determined by the base station is CP-OFDM, the antenna port for transmitting the RS and other data may be determined to be 0 according to Table 2.
  • the UE may determine the correspondence between the antenna port and the transmission waveform according to the pre-configuration; and may also receive the signaling sent by the base station, and determine the correspondence between the antenna port and the transmission waveform by using the signaling, which is not limited in this embodiment. .
  • the UE may determine the transmit waveform based on the pre-processed codebook.
  • the base station may determine the pre-processed codebook according to the transmit waveform and the correspondence between the transmit waveform and the pre-processed codebook, and pre-process the input data according to the determined pre-processed codebook to obtain pre-processed output data.
  • the UE receives the pre-processed output data, and determines the transmit waveform according to the codebook of the pre-processed output data and the correspondence between the transmit waveform and the pre-processed codebook.
  • the correspondence between the transmit waveform and the pre-processed codebook may be: when the transmit waveform is a CP-OFDM waveform, the pre-processed codebook is the first pre-processed codebook; when the transmit waveform is a DFT-s-OFDM waveform, the pre-processed code This is the second preprocessing codebook.
  • the first pre-processing codebook is different from the second pre-processing codebook.
  • the UE may determine the correspondence between the transmit waveform and the pre-processed codebook according to the pre-configuration; or may receive the signaling sent by the base station, and determine the correspondence between the transmit waveform and the pre-processed codebook by using the signaling, which is implemented by the present application. There are no restrictions on the case.
  • the third way to determine the waveform is :
  • the transmitting end is a UE
  • the receiving end is a base station
  • the base station and the UE perform uplink data transmission
  • the UE may also send data to the base station by using a CP-OFDM waveform or a DFT-s-OFDM waveform.
  • the UE may determine the transmit waveform and notify the base station of the determined transmit waveform.
  • the UE measures the channel quality between the base station and the UE, and determines the transmit waveform based on the channel quality. If the channel quality is greater than the threshold or greater than or equal to the threshold, the UE determines that the transmission waveform is CP-OFDM; if the channel quality is less than or equal to the threshold or less than the threshold, the UE determines that the transmission waveform is DFT-s-OFDM.
  • the method for the UE to notify the base station of the transmission waveform is similar to the method for the base station to notify the UE of the transmission waveform in the second transmission waveform determination manner, and details are not described herein again.
  • the transmitting end and the receiving end may include a hardware structure and/or a software module, and implement the foregoing functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the above functions is performed in a hardware structure, a software module, or a hardware structure plus a software module, depending on the specific application and design constraints of the technical solution.
  • FIG. 16 is a schematic structural diagram of a device 1600 according to an embodiment of the present application.
  • the device 1600 can be a transmitting end, and can implement the function of the sending end in the method provided by the embodiment of the present application.
  • the device 1600 can also be a device in the sending end, and the device can support the sending end to implement the method provided in the embodiment of the present application.
  • the device 1600 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • Device 1600 can be implemented by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.
  • the apparatus 1600 includes a first determining module 1602, a scrambling module 1604, and a communication module 1606.
  • the scrambling module 1604 is coupled to the first determining module 1602, and the scrambling module 1604 and the communication module 1606 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules.
  • the first determining module 1602 is configured to determine a scrambling manner according to the transmitted waveform.
  • the scrambling mode includes one or more of frequency domain scrambling, time domain scrambling, and time-frequency domain scrambling.
  • the scrambling module 1604 is configured to scramble the scrambled data according to the scrambling manner to obtain scrambled output data.
  • the method of performing scrambling on the scrambling data according to the scrambling method reference may be made to the corresponding description in the method embodiment of the present application, and details are not described herein again.
  • the communication module 1606 is configured to transmit the scrambled output data.
  • Communication module 1606 is for device 1600 to communicate with other modules, which may be circuits, devices, interfaces, buses, software modules, transceivers, or any other device that can implement communication.
  • the device 1600 can also include a second determining module 1608 for determining a transmit waveform for transmitting scrambled output data.
  • the second determining module 1608 determines the method for transmitting the waveform, and may refer to the corresponding description in the method embodiment of the present application, for example, one or more of the first sending waveform determining manner to the third transmitting waveform determining manner, and details are not described herein again. .
  • FIG. 17 is a schematic structural diagram of an apparatus 1700 according to an embodiment of the present application.
  • the device 1700 can be a receiving end, which can implement the function of the receiving end in the method provided by the embodiment of the present application.
  • the device 1700 can also be a device in the receiving end, and the device can support the receiving end to implement the method provided in the method provided by the embodiment of the present application.
  • the device 1700 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • Device 1700 can be implemented by a chip system.
  • the apparatus 1700 includes a first determining module 1702, a descrambling module 1704, and a communication module 1706.
  • the descrambling module 1704 and the first determining module 1702 are coupled, and the descrambling module 1704 and the communication module 1706 are coupled.
  • the first determining module 1702 is configured to determine a scrambling manner according to the transmission waveform.
  • the scrambling mode includes at least one of frequency domain scrambling, time domain scrambling, and time-frequency domain scrambling.
  • the communication module 1706 is configured to receive the scrambled data.
  • Communication module 1706 is for device 1700 to communicate with other modules, which may be circuits, devices, interfaces, buses, software modules, transceivers, or any other device that can implement communication.
  • the descrambling module 1704 is configured to descramble the received scrambled data according to a scrambling manner.
  • a second determining module 1708 can also be included in the device 1700 for determining a transmission waveform.
  • the method for determining the transmission waveform by the second determining module 1708 can refer to the corresponding description in the method embodiment of the present application, for example, the descriptions corresponding to the first transmission waveform determination manner to the third transmission waveform determination manner, and details are not described herein again.
  • FIG. 18 is a schematic structural diagram of a device 1800 according to an embodiment of the present application.
  • the device 1800 can be a transmitting end, and can implement the function of the sending end in the method provided by the embodiment of the present application.
  • the device 1800 can also be a device in the sending end, and the device can support the sending end to implement the method provided in the embodiment of the present application. The function of the end.
  • the apparatus 1800 includes a processing system 1802 for implementing or for supporting a transmitting end to implement a function of a transmitting end in the method provided by the embodiment of the present application.
  • Processing system 1802 can be a circuit that can be implemented by a chip system.
  • the processing system 1802 includes one or more processors 1822, which can be used to implement or support the transmitting end to implement the functions of the transmitting end in the method provided by the embodiment of the present application.
  • the processor 1822 can also be used to manage other devices included in the processing system 1802.
  • the other devices may be the memory 1824, the bus 1826, and the bus described below.
  • the processor may be a central processing unit (CPU), a general-purpose processor network processor (NP), a digital signal processing (DSP), a microprocessor, A microcontroller, a programmable logic device (PLD), or any combination thereof.
  • CPU central processing unit
  • NP general-purpose processor network processor
  • DSP digital signal processing
  • microprocessor a microprocessor
  • a microcontroller a programmable logic device (PLD), or any combination thereof.
  • Processing system 1802 may also include one or more memories 1824 for storing program instructions and/or data. Further, the processor 1824 can also be included in the processor 1822. If processing system 1802 includes memory 1824, processor 1822 can be coupled to memory 1824. The processor 1822 can operate in conjunction with the memory 1824. Processor 1822 can execute program instructions stored in memory 1824. When the processor 1822 executes the program instructions stored in the memory 1824, the function of the sender in the method provided by the embodiment of the present application may be implemented or supported. Processor 1822 may also read data stored in memory 1824. Memory 1824 may also store data obtained by processor 1822 when executing program instructions.
  • the memory includes a volatile memory, such as a random-access memory (RAM); the memory may also include a non-volatile memory, such as a flash.
  • RAM random-access memory
  • the memory may also include a non-volatile memory, such as a flash.
  • the processor may determine the scrambling mode according to the transmitted waveform.
  • the scrambling mode includes at least one of frequency domain scrambling, time domain scrambling, and time-frequency domain scrambling.
  • the processor may also scramble the scrambled data according to the scrambling method to obtain scrambled output data and send the scrambled output data.
  • the processor can also determine a transmit waveform for transmitting scrambled output data.
  • Processing system 1802 can also include a bus interface 1828 for providing an interface between bus 1826 and other devices.
  • the device 1800 may also include a transceiver 1806 for communicating over a transmission medium with other communication devices such that other devices in the device 1800 can communicate with other communication devices.
  • the other device may be the processing system 1802.
  • other devices in device 1800 may utilize transceiver 1806 to communicate with other communication devices to receive and/or transmit corresponding information. It can also be described that other devices in device 1800 may receive corresponding information, wherein the corresponding information is received by transceiver 1806 over a transmission medium, which may be via bus interface 1828 or through bus interface 1828 and bus 1826.
  • Interacting between the transceiver 1806 and other devices in the device 1800; and/or other devices in the device 1800 may transmit corresponding information, wherein the corresponding information is transmitted by the transceiver 1806 over a transmission medium, the corresponding The information can be exchanged between the transceiver 1806 and other devices in the device 1800 via the bus interface 1828 or through the bus interface 1828 and the bus 1826.
  • the device 1800 may also include a user interface 1804, which is an interface between the user and the device 1800, possibly for user interaction with the device 1800.
  • user interface 1804 may be at least one of a keyboard, a mouse, a display, a speaker, a microphone, and a joystick.
  • the processing system 1802 includes a processor 1822, and may also include one or more of a memory 1824, a bus 1826, and a bus interface 1828 for implementing the method provided by the embodiments of the present application.
  • Processing system 1802 is also within the scope of this application.
  • FIG. 19 is a schematic structural diagram of an apparatus 1900 according to an embodiment of the present application.
  • the device 1900 can be a receiving end, and can implement the function of the receiving end in the method provided by the embodiment of the present application.
  • the device 1900 can also be a device in the receiving end, and the device can support the receiving end to implement receiving in the method provided by the embodiment of the present application. The function of the end.
  • the apparatus 1900 includes a processing system 1902 for implementing or for supporting a receiving end to implement the functions of the receiving end in the method provided by the embodiment of the present application.
  • Processing system 1902 can be a circuit that can be implemented by a chip system.
  • the processing system 1902 includes one or more processors 1922, which can be used to implement or support the receiving end to implement the function of receiving the sending end in the method provided by the embodiment of the present application.
  • the processor 1922 can also be used to manage other devices included in the processing system 1902, which may be, by way of example, the memory 1924, the bus 1926, and the bus described below.
  • One or more of the interfaces 1928 One or more of the interfaces 1928.
  • Processing system 1902 may also include one or more memories 1924 for storing program instructions and/or data. Further, the processor 1924 can also be included in the processor 1922. If processing system 1902 includes memory 1924, processor 1922 can be coupled to memory 1924. The processor 1922 can operate in conjunction with the memory 1924. The processor 1922 can execute program instructions stored in the memory 1924. When the processor 1922 executes the program instructions stored in the memory 1924, the receiving end can implement or support the function of the receiving end in the method provided by the embodiment of the present application. Processor 1922 may also read data stored in memory 1924. Memory 1924 may also store data obtained by processor 1922 when executing program instructions.
  • the processor 1922 may receive the scrambled data, determine the scrambling mode according to the transmission waveform, and descramble the received scrambled data according to the scrambling mode, where
  • the scrambling method includes at least one of frequency domain scrambling, time domain scrambling, and time-frequency domain scrambling.
  • the processor can also determine a transmission waveform for transmitting the scrambled output data.
  • the processor 1922 implements or supports the receiving end to implement the method provided by the embodiment of the present application. For the specific method, refer to the description in the method embodiment of the present application, and details are not described herein again.
  • Processing system 1902 can also include a bus interface 1928 for providing an interface between bus 1926 and other devices.
  • Apparatus 1900 may also include a transceiver 1906 for communicating over a transmission medium with other communication devices such that other devices in device 1900 can communicate with other communication devices.
  • the other device may be the processing system 1902.
  • other devices in device 1900 may utilize transceiver 1906 to communicate with other communication devices to receive and/or transmit corresponding information. It can also be described that other devices in device 1900 may receive corresponding information, wherein the corresponding information is received by transceiver 1906 via a transmission medium, which may be via bus interface 1928 or through bus interface 1928 and bus 1926.
  • Interacting between transceiver 1906 and other devices in device 1900; and/or other devices in device 1900 may transmit corresponding information, wherein the corresponding information is transmitted by transceiver 1906 over a transmission medium, the corresponding The information can be exchanged between the transceiver 1906 and other devices in the device 1900 via the bus interface 1928 or through the bus interface 1928 and the bus 1926.
  • the device 1900 may also include a user interface 1904, which is an interface between the user and the device 1900, possibly for user interaction with the device 1900.
  • user interface 1904 may be at least one of a keyboard, a mouse, a display, a speaker, a microphone, and a joystick.
  • the processing system 1902 includes a processor 1922, and may also include one or more of a memory 1924, a bus 1926, and a bus interface 1928 for implementing the method provided by the embodiments of the present application.
  • Processing system 1902 is also within the scope of this application.
  • the module division of the device is a logical function division, and the actual implementation may have another division manner.
  • each functional module of the device may be integrated into one module, or each functional module may exist separately, or two or more functional modules may be integrated into one module.
  • the method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented in software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, a network device, a user device, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, an SSD) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a digital video disc (DVD)
  • a semiconductor medium eg, an SSD

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Abstract

本申请提供了一种基于加扰的数据传输方法和装置。其中，该方法包括：根据发送波形确定加扰方式，其中，该加扰方式包括频域加扰、时域加扰或时频域加扰；根据该加扰方式对待加扰数据进行加扰，得到加扰输出数据；发送加扰输出数据。其中，发送波形可以是离散傅里叶扩展正交频分复用DFT-s-OFDM波形或循环前缀正交频分复用CP-OFDM波形。通过该方法，可以根据发送波形确定加扰方式，使得基于该加扰方式得到的待发送数据可以具有低峰均功率比PAPR，或者使得基于该加扰方式得到的待发送数据可以不增加待发送数据的PAPR，从而提高数据传输效率。

Description

基于加扰的数据传输方法
本申请要求于2018年1月24日提交中国国家知识产权局、申请号为201810068905.0、申请名称为“基于加扰的数据传输方法”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
本申请涉及通信技术领域，尤其涉及基于加扰的数据传输方法和装置。
背景技术
在无线通信系统中，可以引入多址技术。在支持多址的无线通信系统中，可以支持多个终端接入相同的网络设备，和该网络设备进行数据传输。基于正交性，多址可以包括正交多址和非正交多址(non-orthogonal multiple access，NOMA)；基于资源复用方式，多址可以包括码分多址(code division multiple access，CDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)和空分多址(space division multiple access，SDMA)。
随着无线通信技术的发展，在支持多址的无线通信系统中，通信业务量显著增加，因此需要研究如何提高支持多址的无线通信系统的传输效率。
发明内容
第一方面，本申请提供了一种基于加扰的数据传输方法，包括：根据发送波形确定加扰方式；根据所述加扰方式对待加扰数据进行加扰，得到加扰输出数据；发送所述加扰输出数据。其中，示例性地，所述加扰方式包括以下一个或多个：频域加扰、时域加扰或时频域加扰。示例性地，如果所述发送波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，所述加扰方式为时域加扰。再示例性地，如果所述发送波形为循环前缀正交频分复用CP-OFDM波形，所述加扰方式为时域加扰、频域加扰或时频域加扰。通过该方法，可以根据发送波形确定加扰方式，使得基于该加扰方式得到的待发送数据可以具有低峰均功率比(peak-to-average power ratio，PAPR)，或者使得基于该加扰方式得到的待发送数据可以不增加待发送数据的PAPR，从而提高数据传输效率。
第一个设计，根据第一方面，根据发送波形确定加扰方式包括：根据发送波形和预处理码本的类型确定加扰方式。示例性地，如果所述发送波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，所述加扰方式为频域加扰。再示例性地，如果所述发送波形为DFT-s-OFDM波形且预处理码本的类型为扩展序列，所述加扰方式为时域加扰。通过该方法，可以根据发送波形和预处理码本的类型确定加扰方式，使得基于该加扰方式和该预处理码本得到的待发送数据可以具有低峰均功率比(peak-to-average power ratio，PAPR)，或者使得基于该加扰方式和该预处理码本得到的待发送数据可 以不增加待发送数据的PAPR，从而提高数据传输效率。
第二个设计，根据第一方面或第一方面第一个设计，根据加扰方式对待加扰数据进行加扰，得到加扰输出数据，包括：根据所述加扰方式，基于加扰序列对待加扰数据进行加扰，得到加扰输出数据，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据UE的UE组标识确定的，所述加扰输出数据是对应于所述UE的数据。通过该方法，可以降低不同UE组的数据间的干扰。
第三个设计，根据第一方面或者第一方面中上述任何一个设计，还包括：确定发送波形。确定发送波形时，可以根据参考信号RS确定发送波形。示例性地，可以根据RS图案配置确定发送波形，也可以根据RS的序列类型或序列值确定发送波形，还可以根据RS的端口确定发送波形。确定发送波形时，还可以根据预处理码本确定发送波形。示例性地，可以根据预处理码本、以及发送波形和预处理码本的对应关系确定发送波形。
第二方面，本申请提供了一种基于加扰的数据传输方法，包括：接收加扰数据；根据传输波形确定加扰方式；根据所述加扰方式对接收到的加扰数据进行解扰。其中，示例性地，所述加扰方式包括以下一个或多个：频域加扰、时域加扰或时频域加扰。示例性地，如果所述传输波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，所述加扰方式为时域加扰。再示例性地，如果所述传输波形为循环前缀正交频分复用CP-OFDM波形，所述加扰方式为时域加扰、频域加扰或时频域加扰。
第一个设计，根据第二方面，根据传输波形确定加扰方式包括：根据传输波形和预处理码本的类型确定加扰方式。示例性地，如果所述传输波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，所述加扰方式为频域加扰。再示例性地，如果所述传输波形为DFT-s-OFDM波形且预处理码本的类型为扩展序列，所述加扰方式为时域加扰。
第二个设计，根据第二方面或第二方面第一个设计，根据加扰方式对接收到的加扰数据进行解扰，包括：根据所述加扰方式，基于加扰序列对接收到的加扰数据进行解扰，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据UE的UE组标识确定的，所述加扰数据是对应于所述UE的数据。
第三个设计，根据第二方面或者第二方面中上述任何一个设计，还包括：确定传输波形。确定传输波形时，可以根据参考信号RS确定传输波形。示例性地，可以根据RS图案配置确定传输波形，也可以根据RS的序列类型或序列值确定传输波形，还可以根据RS的端口确定传输波形。确定传输波形时，还可以根据预处理码本确定传输波形。示例性地，可以根据预处理码本、以及传输波形和预处理码本的对应关系确定传输波形。
第三方面，本申请实施例提供了一种装置，包括：第一确定模块，用于根据发送波形确定加扰方式；加扰模块，用于根据所述加扰方式对待加扰数据进行加扰，得到加扰输出数据；通信模块，用于发送所述加扰输出数据。其中，示例性地，所述加扰方式包括以下一个或多个：频域加扰、时域加扰或时频域加扰。示例性地，如果所述发 送波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，所述第一确定模块确定所述加扰方式为时域加扰。再示例性地，如果所述发送波形为循环前缀正交频分复用CP-OFDM波形，所述第一确定模块确定所述加扰方式为时域加扰、频域加扰或时频域加扰。
第一个设计，根据第三方面，第一确定模块根据发送波形确定加扰方式包括：第一确定模块根据发送波形和预处理码本的类型确定加扰方式。示例性地，如果所述发送波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，所述第一确定模块确定所述加扰方式为频域加扰。再示例性地，如果所述发送波形为DFT-s-OFDM波形且预处理码本的类型为扩展序列，所述第一确定模块确定所述加扰方式为时域加扰。
第二个设计，根据第三方面或第三方面第一个设计，所述加扰模块根据加扰方式对待加扰数据进行加扰，得到加扰输出数据，包括：所述加扰模块根据所述加扰方式，基于加扰序列对待加扰数据进行加扰，得到加扰输出数据，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据UE的UE组标识确定的，所述加扰输出数据是对应于所述UE的数据。
第三个设计，根据第三方面或者第三方面中上述任何一个设计，还包括：第二确定模块，用于确定发送波形。第二确定模块可以根据参考信号RS确定发送波形。示例性地，第二确定模块可以根据RS图案配置确定发送波形，也可以根据RS的序列类型或序列值确定发送波形，还可以根据RS的端口确定发送波形。第二确定模块还可以根据预处理码本确定发送波形。示例性地，第二确定模块可以根据预处理码本、以及发送波形和预处理码本的对应关系确定发送波形。
第四方面，本申请提供了一种装置，该装置能够实现第一方面和第一方面各设计中的一个或多个功能。该功能可以通过硬件、软件或硬件加软件的形式实现。该硬件或软件包括一个或多个与上述功能相对应的模块。在一个示例中，该装置包括：处理器、存储器和收发器。其中，存储器和处理器耦合，处理器执行所述存储器存储的程序指令；处理器和收发器耦合，处理器通过收发器发送和/或接收信号。在另一个示例性，该装置包括：处理器和存储器。其中，存储器和处理器耦合，处理器执行所述存储器存储的程序指令；处理器生成和发送信号，和/或接收和处理信号。
第一个设计中，处理器用于根据发送波形确定加扰方式；处理器还用于根据所述加扰方式对待加扰数据进行加扰，得到加扰输出数据，并发送所述加扰输出数据。其中，示例性地，所述加扰方式包括以下一个或多个：频域加扰、时域加扰或时频域加扰。示例性地，如果所述发送波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，处理器确定所述加扰方式为时域加扰。再示例性地，如果所述发送波形为循环前缀正交频分复用CP-OFDM波形，处理器确定所述加扰方式为时域加扰、频域加扰或时频域加扰。
第二个设计，根据第四方面或第四方面第二个设计，处理器根据发送波形确定加扰方式包括：处理器根据发送波形和预处理码本的类型确定加扰方式。示例性地，如果所述发送波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，处理器确定所 述加扰方式为频域加扰。再示例性地，如果所述发送波形为DFT-s-OFDM波形且预处理码本的类型为扩展序列，处理器确定所述加扰方式为时域加扰。
第三个设计，根据第四方面或者第四方面中上述任何一个设计，处理器根据加扰方式对待加扰数据进行加扰，得到加扰输出数据，包括：处理器根据所述加扰方式，基于加扰序列对待加扰数据进行加扰，得到加扰输出数据，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据UE的UE组标识确定的，所述加扰输出数据是对应于所述UE的数据。
第四个设计，根据第四方面或者第四方面中上述任何一个设计，处理器还用于确定发送波形。处理器可以根据参考信号RS确定发送波形。示例性地，处理器可以根据RS图案配置确定发送波形，也可以根据RS的序列类型或序列值确定发送波形，还可以根据RS的端口确定发送波形。处理器还可以根据预处理码本确定发送波形。示例性地，处理器可以根据预处理码本、以及发送波形和预处理码本的对应关系确定发送波形。
第五方面，本申请实施例提供了一种装置，包括：通信模块，用于接收加扰数据；第一确定模块，用于根据传输波形确定加扰方式；解扰模块，用于根据所述加扰方式对接收到的加扰数据进行解扰。其中，示例性地，所述加扰方式包括以下一个或多个：频域加扰、时域加扰或时频域加扰。示例性地，如果所述传输波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，所述第一确定模块确定所述加扰方式为时域加扰。再示例性地，如果所述传输波形为循环前缀正交频分复用CP-OFDM波形，所述第一确定模块确定所述加扰方式为时域加扰、频域加扰或时频域加扰。
第一个设计，根据第五方面，第一确定模块根据传输波形确定加扰方式包括：第一确定模块根据传输波形和预处理码本的类型确定加扰方式。示例性地，如果所述传输波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，所述第一确定模块确定所述加扰方式为频域加扰。再示例性地，如果所述传输波形为DFT-s-OFDM波形且预处理码本的类型为扩展序列，所述第一确定模块确定所述加扰方式为时域加扰。
第二个设计，根据第五方面或第五方面第一个设计，所述解扰模块根据加扰方式对接收到的加扰数据进行解扰，包括：所述解扰模块根据所述加扰方式，基于加扰序列对接收到的加扰数据进行解扰，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据UE的UE组标识确定的，所述加扰数据是对应于所述UE的数据。
第三个设计，根据第五方面或者第五方面中上述任何一个设计，还包括：第二确定模块，用于确定传输波形。第二确定模块可以根据参考信号RS确定传输波形。示例性地，第二确定模块可以根据RS图案配置确定传输波形，也可以根据RS的序列类型或序列值确定发送波形，还可以根据RS的端口确定发送波形。第二确定模块还可以根据预处理码本确定传输波形。示例性地，第二确定模块可以根据预处理码本、以及传输波形和预处理码本的对应关系确定传输波形。
第六方面，本申请提供了一种装置，该装置能够实现第二方面和第二方面各设计中 的一个或多个功能。该功能可以通过硬件、软件或硬件加软件的形式实现。该硬件或软件包括一个或多个与上述功能相对应的模块。在一个示例中，该装置包括：处理器、存储器和收发器。其中，存储器和处理器耦合，处理器执行所述存储器存储的程序指令；处理器和收发器耦合，处理器通过收发器发送和/或接收信号。在另一个示例性，该装置包括：处理器和存储器。其中，存储器和处理器耦合，处理器执行所述存储器存储的程序指令；处理器生成和发送信号，和/或接收和处理信号。
第一个设计，根据第六方面，处理器接收加扰数据，根据传输波形确定加扰方式，并根据所述加扰方式对接收到的加扰数据进行解扰。其中，示例性地，所述加扰方式包括频域加扰、时域加扰或时频域加扰。示例性地，如果所述传输波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，所述处理器确定所述加扰方式为时域加扰。再示例性地，如果所述传输波形为循环前缀正交频分复用CP-OFDM波形，所述处理器确定所述加扰方式为时域加扰、频域加扰或时频域加扰。
第二个设计，根据第六方面或第六方面第一个设计，处理器根据传输波形确定加扰方式包括：处理器根据传输波形和预处理码本的类型确定加扰方式。示例性地，如果所述传输波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，所述处理器确定所述加扰方式为频域加扰。再示例性地，如果所述传输波形为DFT-s-OFDM波形且预处理码本的类型为扩展序列，所述处理器确定所述加扰方式为时域加扰。
第三个设计，根据第六方面或者第六方面中上述任何一个设计，所述处理器根据加扰方式对接收到的加扰数据进行解扰，包括：处理器根据所述加扰方式，基于加扰序列对接收到的加扰数据进行解扰，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据UE的UE组标识确定的，所述加扰数据是对应于所述UE的数据。
第四个设计，根据第六方面或者第六方面中上述任何一个设计，处理器还用于确定传输波形。处理器可以根据参考信号RS确定传输波形。示例性地，处理器可以根据RS图案配置确定传输波形，也可以根据RS的序列类型或序列值确定发送波形，还可以根据RS的端口确定发送波形。处理器还可以根据预处理码本确定传输波形。示例性地，处理器可以根据预处理码本、以及传输波形和预处理码本的对应关系确定传输波形。
第七方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行第一方面和第一方面各设计中的一个或多个。
第八方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行第二方面和第二方面各设计中的一个或多个。
第九方面，本申请提供了一种通信系统，包括第三方面或第三方面各设计中任一个所述的装置、以及第五方面或第五方面各设计中任一个所述的装置。
第十方面，本申请提供了一种通信系统，包括第四方面或第四方面各设计中任一个所述的装置、以及第六方面或第六方面各设计中任一个所述的装置。
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图1是本申请实施例提供的基于加扰的数据传输的流程图；
图2是本申请实施例提供的基于加扰的数据传输的流程图；
图3是本申请实施例提供的基于加扰的数据传输的流程图；
图4是本申请实施例提供的仿真结果图；
图5是本申请实施例提供的对预处理输入数据进行预处理的示意图；
图6是本申请实施例提供的对预处理输入数据进行预处理的示意图；
图7是本申请实施例提供的对预处理输入数据进行预处理的示意图；
图8是本申请实施例提供的仿真结果图；
图9是本申请实施例提供的时频资源的示例图；
图10是本申请实施例提供的频域加扰的示意图；
图11是本申请实施例提供的时域加扰的示意图；
图12是本申请实施例提供的时频域加扰的示意图；
图13是本申请实施例提供的参考信号图案示例图；
图14是本申请实施例提供的参考信号图案示例图；
图15是本申请实施例提供的参考信号图案示例图；
图16是本申请实施例提供的一种装置结构示意图；
图17是本申请实施例提供的一种装置结构示意图；
图18是本申请实施例提供的一种装置结构示意图；
图19是本申请实施例提供的一种装置结构示意图。
具体实施方式
本申请实施例提供的技术方案可以应用于各种通信系统，例如：第五代移动通信系统(the fifth generation mobile networks，5G)、长期演进(long term evolution，LTE)系统和未来通信系统。其中，5G还可以称为新无线电(new radio，NR)。
在无线通信系统中，包括通信设备，通信设备间可以利用空口资源进行无线通信。其中，通信设备可以包括网络设备和终端设备，网络设备还可以称为网络侧设备。空口资源可以包括时域资源、频域资源、码资源和空间资源中至少一个。
本申请实施例涉及到的终端设备还可以称为终端，可以是一种具有无线收发功能的设备，其可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。终端设备可以是用户设备(user equipment，UE)，其中，UE包括具有无线通信功能的手持式设备、车载设备、可穿戴设备或计算设备。示例性地，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。终端设备还可以是虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请实施例中，实现终端的功能的装置可以是终端，也可以是支持终端实现该功能的装置。本申请实施例中，以实现终端的功能的装置是终端，以终端是UE为例，描述本申请 实施例提供的技术方案。
本申请实施例涉及到的网络设备包括基站(base station，BS)，可以是一种部署在无线接入网中能够和终端进行无线通信的设备。其中，基站可能有多种形式，比如宏基站、微基站、中继站和接入点等。示例性地，本申请实施例涉及到的基站可以是5G中的基站或LTE中的基站，其中，5G中的基站还可以称为发送接收点(transmission reception point，TRP)或gNB。本申请实施例中，实现网络设备的功能的装置可以是网络设备，也可以是支持网络设备实现该功能的装置。本申请实施例中，以实现网络设备的功能的装置是网络设备，以网络设备是基站为例，描述本申请实施例提供的技术方案。
本申请实施例提供的技术方案可以应用于通信设备间的无线通信。通信设备间的无线通信可以包括：网络设备和终端间的无线通信、网络设备和网络设备间的无线通信以及终端和终端间的无线通信。其中，在本申请实施例中，术语“无线通信”还可以简称为“通信”，术语“通信”还可以描述为“数据传输”、“信息传输”或“传输”。在无线通信系统中，通信设备间进行无线通信时，发送数据的通信设备还可以称为发送端，接收数据的通信设备还可以称为接收端。以基站和UE间进行通信为例，基站向UE发送数据，UE接收基站发送的数据时，基站还可以称为发送端，UE还可以称为接收端；UE向基站发送数据，基站接收UE发送的数据时，UE还可以称为发送端，基站还可以称为接收端。
进行数据传输时，发送端可以基于加扰序列对待发送数据进行加扰，以降低传输的数据间的干扰，用于提高接收端的解码正确率，从而可以提高数据传输的效率。其中，在本申请实施例中，发送端发送的数据可以称为待发送数据，待发送数据可以是能够在空口被发送的数据；也可以是被处理后能够在空口被发送的数据，本申请不做限制；进行加扰处理时被加扰的待发送数据还可以称为待加扰数据、加扰输入数据或者其它名称，本申请不做限制。示例性地，以基站和UE间的上行传输为例，UE A和UE B可以使用不同的加扰序列分别对各自的数据进行加扰，使得UE A和UE B的数据间的干扰降低，当UE A和UE B分别将各自经过加扰的数据发送至基站，基站对UE A和UE B的数据进行解调时，可以提高解码正确率，从而可以提高系统传输效率。
在本申请实施例中，发送端可以对各种类型的待加扰数据进行加扰并发送，该方法可以被称为基于加扰的数据传输。
示例性地，图1所示为发送端对比特进行加扰并发送的流程图。如图1所示，该处理流程包括：前向纠错(forward error correction，FEC)、加扰和调制。
进行FEC时，发送端对输入比特进行编码，得到编码输出比特，使得接收端可以检测到误码或可以纠正误码，从而可以增强数据传输的可靠性。进行FEC时，可以采用本技术领域常用的前向纠错码对输入比特进行编码。其中，常用的前向纠错码可以是卷积码、分组码、Turbo码、LDPC(Low density parity check)码或极化(Polar)码。
进行加扰时，通过加扰序列对编码输出比特序列进行加扰，得到加扰输出比特序列。其中，通过加扰序列对编码输出比特序列进行加扰可以包括：将加扰序列和编码输出比特序列相加，或将加扰序列和编码输出比特序列相乘。示例性地，图1所示为将加扰序列和编码输出比特序列相加。其中，编码输出比特序列中包括一个或多个编 码输出比特，加扰输出比特序列中包括一个或者多个加扰输出比特，加扰序列中可以包括一个或者多个比特。在本申请实施例中，至少一个可以包括一个或多个，多个可以包括两个、三个、四个或者更多个，本申请不做限制。
进行调制时，发送端根据调制机制对加扰比特进行调制，得到调制符号。其中，在本申请实施例中，调制机制还可以称为调制方法或者其它名称，本申请不做限制。示例性地，调制机制可以包括正交振幅调制(quadrature amplitude modulation，QAM)，QAM调制可以包括二相移键控(binary phase shift keying，BPSK)、正交相移键控(quadrature phase shift keying，QPSK)、16QAM、64QAM、256QAM和1024QAM中至少一个。发送端可以将调制符号发送至接收端。
再示例性地，图2所示为发送端对符号进行加扰并发送的流程图。如图2所示，该处理流程对输入符号序列进行加扰，得到加扰输出符号序列，加扰输出符号序列中包括一个或多个加扰输出符号，发送端可以将加扰输出符号序列中的符号发送至接收端。其中，输入符号序列中的符号为复数，其可以是各种类型的符号，示例性地，其可以是经过调制的调制符号，也可以是经过预处理的预处理输出符号，本申请不做限制；加扰序列中可以包括一个或多个复数符号。对输入符号序列进行加扰可以包括：将加扰序列和输入符号序列相加，或将加扰序列和输入符号序列相乘。示例性地，图2所示为将加扰序列和输入符号序列相乘。
在本申请实施例的加扰中，如图1或图2涉及的加扰流程中，通过加扰序列对待加扰数据进行加扰时，可以将加扰序列和待加扰数据序列相加，得到加扰输出序列。示例性地，待加扰数据序列为A＝[a 1,a 2,...,a N]，即待加扰数据序列A中第i个元素为a i，i＝1,2,...,N；加扰序列为
Figure PCTCN2019071266-appb-000001
即加扰序列
Figure PCTCN2019071266-appb-000002
中第i个元素为s i，i＝1,2,...,N；则加扰输出序列中第i个元素为b i＝a i+s i，i＝1,2,...,N。在本申请实施例中，待加扰数据序列还可以称为待加扰序列或者其它名称，本申请不做限制。
在本申请实施例加扰中，如图1或图2涉及的加扰流程中，通过加扰序列对待加扰数据进行加扰时，还可以将加扰序列和待加扰数据序列相乘，得到加扰输出序列。示例性地，待加扰数据序列为A＝[a 1,a 2,...,a N]，即待加扰数据序列A中第i个元素为a i，i＝1,2,...,N；加扰序列为
Figure PCTCN2019071266-appb-000003
即加扰序列
Figure PCTCN2019071266-appb-000004
中第i个元素为s i，i＝1,2,...,N；则加扰输出序列中第i个元素为
Figure PCTCN2019071266-appb-000005
进一步地，在本申请实施例加扰中，如图1或图2涉及的加扰流程中，通过加扰序列对待加扰数据进行加扰时，还可以将加扰序列和待加扰序列进行相加和相乘以外的运算或者处理，得到加扰输出序列，本申请不做限制。
随着无线通信技术的发展，通信系统中的业务量持续增加，在基于加扰的数据传输中，为了支持更高的业务量，本申请实施例提供了相应的技术方案，用于提高系统传输速率，从而可以支持更高的业务量。
本申请实施例提供的技术方案可以应用于各种通信设备间的无线通信。示例性地，本申请实施例提供的技术方案可以应用于基站和UE间的上行传输、基站和UE间的下行传输、宏基站和微基站间的上行传输、宏基站和微基站间的下行传输、设备到设备(device to device，D2D)通信以及车辆到车辆(vehicle to vehicle，V2V)通信中的一个或者多个。在本申请实施例提供的技术方案中，以基站和UE间的上行传输或下 行传输为例，描述本申请实施例提供的技术方案。
图3所示为本申请实施例提供的基于加扰的数据传输方法。
301，发送端根据发送波形确定加扰方式。
在本申请实施例提供的技术方案中，发送端可以使用波形发送待发送数据。其中，发送端使用的波形还可以称为发送波形、传输波形、波形或者其它名称，本申请不做限制。示例性地，发送波形可以为离散傅里叶扩展正交频分复用(discrete fourier transform spreading OFDM(orthogonal frequency division multiplexing)，DFT-s-OFDM)波形或循环前缀正交频分复用(cyclic prefix orthogonal frequency division multiplexing，CP-OFDM)波形。在本申请实施例中，DFT-s-OFDM波形还可以简称为DFT-s-OFDM，CP-OFDM波形还可以简称为CP-OFDM。
302，发送端根据加扰方式对待加扰数据进行加扰，得到加扰输出数据。
303，发送端向接收端发送加扰输出数据。
304，接收端接收加扰数据，根据传输波形确定加扰方式。
在本申请实施例中，发送端将其得到的加扰输出数据发送至接收端，该加扰输出数据在接收端还可以称为加扰数据或者其它名称，本申请不做限制。
在本申请实施例中，发送端使用发送波形向接收端发送待发送数据时，接收端可以使用传输波形接收该数据，其中，传输波形和发送波形相同，在接收端传输波形还可以称为接收波形或者其它名称，本申请不做限制。示例性地，304中的传输波形和301中的发送波形相同。
可选地，304中接收端根据传输波形确定加扰方式的方法可以同301中发送端根据发送波形确定加扰方式的方法。
305，接收端根据加扰方式对接收到的加扰数据进行解扰。
通过本申请实施例提供的基于加扰的数据传输方法，可以根据发送波形确定加扰方式，使得基于该加扰方式得到的待发送数据可以具有低峰均功率比(peak-to-average power ratio，PAPR)，或者使得基于该加扰方式得到的待发送数据可以不增加待发送数据的PAPR，从而提高数据传输效率。
在本申请实施例提供的方法中，加扰方式可以包括频域加扰、时域加扰和时频域加扰中至少一个；待加扰数据可以是比特或复数符号，待加扰数据还可以被称为输入数据或者别的名称，本申请不做限制。为了简化描述，本申请实施例中以待加扰数据是复数符号为例，描述本申请实施例提供的技术方案。
在本申请实施例提供的方法中，根据发送波形确定加扰方式时，如果发送波形为DFT-s-OFDM波形，加扰方式可以为时域加扰。在本申请实施例提供的方法中，根据发送波形确定加扰方式时，如果发送波形为CP-OFDM波形，加扰方式可以为时域加扰、频域加扰或时频域加扰。
示例性地，如果待加扰数据是经过QPSK调制的符号，在频域用于进行数据传输的资源为6个资源块(resource block，RB)，图4(a)所示为发送波形是DFT-s-OFDM波形时，加扰方式是频域加扰时，加扰前和加扰后待发送数据的PAPR的互补累计分布函数(complementary cumulative distribution function，CCDF)。其中，PAPR的CCDF 可以表示PAPR超过某一门限值的概率。如图4(a)中所示，频域加扰将增加待发送数据的PAPR。
再示例性地，如果待加扰数据是经过QPSK调制的符号，在频域用于进行数据传输的资源为6个RB，图4(b)所示为发送波形是DFT-s-OFDM波形时，加扰方式是时域加扰时，加扰前和加扰后待发送数据的PAPR的CCDF。如图4(b)中所示，时域加扰不增加待发送数据的PAPR。因此，如果发送波形是DFT-s-OFDM波形时，可以采用时域加扰。
需要说明的是，图4中示出的结果是在特定场景下得到的仿真结果，当场景变化时，还可能得到和图4中示出的结果不同的结果，因此还可以得到其余的根据发送波形确定加扰方式的具体设计，该其余的具体设计也在本申请的保护范围内。
在支持NOMA的系统中，发送端可以对预处理输入数据进行预处理，得到预处理输出数据，并将预处理输出数据发送至接收端。以基站和UE间进行通信为例，如果发送端为UE，不同UE可以将各自的预处理输出数据映射至相同的资源元素进行发送，不同UE的预处理输出数据可以是非正交的，基站可以在该资源元素接收到多个非正交的预处理输出数据的叠加；如果发送端为基站，基站可以将不同UE的预处理输出数据映射至相同的资源元素进行发送，不同UE的预处理输出数据是非正交的。其中，发送端在进行资源映射(将待发送数据映射至资源元素)前，还可以对预处理输出数据进行其它处理，本申请不做限制；示例性地，该其它处理可以包括以下一个或者多个：层映射和预编码。
在本申请实施例中，发送端对预处理输入数据进行预处理时，可以使用预处理码本对预处理输入数据进行预处理，得到预处理输出数据，将预处理输出数据发送至接收端。其中，预处理码本的类型包括扩展序列、扩展矩阵或扩展序列集合。预处理输入数据可以是各种类型的数据，例如比特或者复数符号。如果预处理输入数据是复数符号时，其可以是调制符号或者其它类型的复数符号，本申请不做限制。如果预处理输入数据是复数符号时，相应的预处理输出数据还可以称为预处理输出符号或者其它名称，本申请不做限制。
本申请实施例中，如果预处理码本为扩展序列，则预处理对应扩展序列乘以预处理输入数据，还可以描述为预处理输出数据等于扩展序列乘以预处理输入数据。进行一次预处理得到的预处理输出数据还可以称为预处理单元或者其它名称，本申请不做限制。
图5所示为根据扩展序列对预处理输入数据进行预处理的示意图。在图5中，预处理输入数据为两个调制符号，该两个调制符号分别为1和-1，扩展序列为[1，j，-1，-j] T。对于调制符号1进行预处理，得到预处理输出数据[1，j，-1，-j] T，对于调制符号-1进行预处理，得到预处理输出数据[-1，-j，1，j] T。
本申请实施例中，如果预处理码本是N1行N2列的扩展矩阵，则预处理对应扩展矩阵乘以预处理输入数据，预处理输入数据中包括N2个数据。
图6所示为根据扩展矩阵对预处理输入数据进行预处理的示意图。如图6所示，扩展矩阵为4行2列的W，预处理输入数据为调制符号序列[1，-1]，矩阵W乘以预处理输入数据，得到预处理输出数据[0,0,2,0]。
本申请实施中，如果预处理码本是包括S个扩展序列的扩展序列集合，预处理对应将预处理输入数据映射为S个扩展序列中的一个扩展序列。预处理对应将预处理输入数据映射为S个扩展序列中的一个扩展序列时，可以根据预处理输入数据、以及预处理输入数据和S个扩展序列中的扩展序列的映射关系，确定预处理输出数据。其中，S为正整数。
以预处理输入数据为调制符号为例，图7所示为根据扩展序列集合对预处理输入数据进行预处理的示例图。如图7所示，扩展序列集合中包括扩展序列[1，j，-1，-j]、[1，-j，-1，j]、[-1，-j，1，j]和[-1，j，1，-j]。预处理输入数据可能的取值为x1、x2、x3或x4，调制符号和扩展序列集合中的扩展序列的对应关系如图7所示，调制符号x1对应的扩展序列为[1，j，-1，-j]，调制符号x2对应的扩展序列为[1，-j，-1，j]，调制符号x3对应的扩展序列为[-1，-j，1，j]，调制符号x4对应的扩展序列为[-1，j，1，-j]。如果预处理输入数据为x1，根据x1以及调制符号和扩展序列集合中的扩展序列的对应关系确定预处理输出符号为[1，j，-1，-j]。
在本申请实施例提供的方法中，根据发送波形确定加扰方式可以包括：根据发送波形和预处理码本的类型确定加扰方式。该方法中，发送端可以先进行预处理再进行加扰，也可以先进行加扰再进行预处理，还可以同时进行加扰和预处理，本申请不做限制。示例性地，如果发送波形为CP-OFDM波形且预处理码本的类型为扩展序列，加扰方式为频域加扰。再示例性地，如果发送波形为DFT-s-OFDM波形且预处理码本的类型为扩展序列，加扰方式为时域加扰。基于该方法，使得基于加扰方式和预处理码本得到的待发送数据可以具有低峰均功率比PAPR，或者使得基于加扰方式和预处理码本得到的待发送数据可以不增加待发送数据的PAPR，从而提高数据传输效率。
示例性地，如果待加扰数据是对QPSK调制符号进行预处理得到的预处理输出符号，预处理码本为扩展序列[1,1,1,1]，在频域用于进行数据传输的资源为6个RB，图8(a)所示为发送波形是CP-OFDM波形、加扰方式是频域加扰时，加扰前和加扰后待发送数据的PAPR的CCDF。如图8(a)中所示，频域加扰将降低待发送数据的PAPR。
再示例性地，如果待加扰数据是对QPSK调制符号进行预处理得到的预处理输出符号，预处理码本为扩展序列[1,1,1,1]，在频域用于进行数据传输的资源为6个RB，图8(b)所示为发送波形是DFT-s-OFDM波形、加扰方式是时域加扰时，加扰前和加扰后待发送数据的PAPR的CCDF。如图8(b)中所示，时域加扰不增加待发送数据的PAPR。
需要说明的是，图8中示出的结果是在特定场景下得到的仿真结果，当场景变化时，还可能得到和图8中示出的结果不同的结果，因此还可以得到其余的根据发送波形和预处理码本的类型确定加扰方式的具体设计，该其余的具体设计也在本申请的保护范围内。
在基于正交频分复用(orthogonal frequency division multiplexing，OFDM)的无线通信系统中，发送端和接收端可以在空口资源进行数据传输，空口资源可以包括时域资源、频域资源、时频资源或空间资源，其中，时频资源还可以被描述为时域资源和 频域资源。如果空口资源是时频资源，发送端和接收端可以在资源元素(resource element，RE)进行数据传输。图9所示为时频资源的一个示例图。如图9所示，时频资源中用于进行数据传输的最小单元可以为RE，时频资源中可以包括正整数个RE，一个RE在时域对应一个符号，频域对应一个子载波。如图9所示的示例，发送端和接收端在进行数据传输时，在时域可以基于传输时间间隔(transmission time interval，TTI)进行数据传输。在本申请实施例中，TTI中可以包括正整数个时间单元，时间单元包括符号、时隙、微时隙、子帧、帧或其它本领域常用的时间单元，本申请不做限制。
在本申请实施例提供的方法中，发送端根据加扰方式对待加扰数据进行加扰可以包括：发送端根据加扰方式，使用加扰序列对待加扰数据进行加扰。进一步地，该加扰序列还可以用于接收端进行解扰。
图10所示为加扰方式是频域加扰时，使用加扰序列对待加扰数据进行加扰的示例图，其中，TTI中包括
Figure PCTCN2019071266-appb-000006
个OFDM符号，待加扰数据为复数符号。
如图10(a)所示，加扰序列中包括
Figure PCTCN2019071266-appb-000007
个子序列，一个子序列对应于TTI中的一个符号，用于对在该符号进行传输的待加扰数据进行加扰。其中，该
Figure PCTCN2019071266-appb-000008
个子序列中的第i个序列为
Figure PCTCN2019071266-appb-000009
Figure PCTCN2019071266-appb-000010
该
Figure PCTCN2019071266-appb-000011
个子序列中的任意两个子序列的长度可以相同也可以不同，本申请不做限制。
图10(b)所示为基于子序列
Figure PCTCN2019071266-appb-000012
对在TTI中第i个符号进行传输的待加扰数据进行加扰的示例图，其中，
Figure PCTCN2019071266-appb-000013
如图10(b)所示，发送端在第i个符号进行传输的K i个待加扰数据可以表示为
Figure PCTCN2019071266-appb-000014
其中，K i为正整数，该K i个待加扰数据中的一个数据在第i个符号的一个RE中被传输。
Figure PCTCN2019071266-appb-000015
对应的加扰输出数据可以表示为
Figure PCTCN2019071266-appb-000016
即
Figure PCTCN2019071266-appb-000017
乘以
Figure PCTCN2019071266-appb-000018
其中，
Figure PCTCN2019071266-appb-000019
为子序列
Figure PCTCN2019071266-appb-000020
中第j个元素，j＝0,…,K i-1。
图11所示为加扰方式是时域加扰时，使用加扰序列对待加扰数据进行加扰的示例图，其中，TTI中包括
Figure PCTCN2019071266-appb-000021
个符号，待加扰数据为复数符号，加扰序列的长度为
Figure PCTCN2019071266-appb-000022
Figure PCTCN2019071266-appb-000023
为该加扰序列中第i个元素，
Figure PCTCN2019071266-appb-000024
如图11(a)所示，待加扰数据中包括
Figure PCTCN2019071266-appb-000025
个子序列，该
Figure PCTCN2019071266-appb-000026
个子序列中的第i个序列为
Figure PCTCN2019071266-appb-000027
Figure PCTCN2019071266-appb-000028
该
Figure PCTCN2019071266-appb-000029
个子序列中的任意两个子序列的长度可以相同也可以不同，本申请不做限制。
Figure PCTCN2019071266-appb-000030
中的数据在TTI中第i个OFDM符号对应的RE中进行传输，其中，
Figure PCTCN2019071266-appb-000031
中的一个数据在第i个OFDM符号对应的一个RE中进行传输。
如图11(b)所示，基于加扰序列中的第i个元素
Figure PCTCN2019071266-appb-000032
对
Figure PCTCN2019071266-appb-000033
中的数据进行加扰，得到
Figure PCTCN2019071266-appb-000034
对应的加扰输出数据。
Figure PCTCN2019071266-appb-000035
对应的加扰输出数据可以表示为
Figure PCTCN2019071266-appb-000036
即
Figure PCTCN2019071266-appb-000037
乘以
Figure PCTCN2019071266-appb-000038
其中，
Figure PCTCN2019071266-appb-000039
为
Figure PCTCN2019071266-appb-000040
中第j个数据，j＝0,…,K i-1。
进行时频域加扰时，可以通过先进行时域加扰再进行频域加扰的方式对待加扰数据进行加扰，也可以通过先进行频域加扰再进行时域加扰的方式对待加扰数据进行加扰，得到加扰数据数据，还可以通过同时进行频域加扰和时域加扰的方式对待加扰数据进行加扰，本申请不做限制。其中，进行时域加扰时的加扰方法同图11涉及的方法中相应的描述，进行频域加扰时的加扰方法同图10涉及的方法中相应的描述。
图12所示为加扰方式是时频域加扰时，使用加扰序列对待加扰数据进行加扰的示 例图。其中，进行时频域加扰时先进行时域加扰再进行频域加扰，TTI中包括
Figure PCTCN2019071266-appb-000041
个符号，待加扰数据为复数符号，加扰序列包括时域加扰序列和频域加扰序列。
时域加扰序列的长度为
Figure PCTCN2019071266-appb-000042
时域加扰序列中第i个元素为
Figure PCTCN2019071266-appb-000043
Figure PCTCN2019071266-appb-000044
图12涉及的时域加扰序列可以和图11涉及的加扰序列相同，也可以不相同，本申请不做限制。
频域加扰序列中包括
Figure PCTCN2019071266-appb-000045
个子序列，该
Figure PCTCN2019071266-appb-000046
个子序列中的第i个序列为
Figure PCTCN2019071266-appb-000047
Figure PCTCN2019071266-appb-000048
该
Figure PCTCN2019071266-appb-000049
个子序列中的任意两个子序列的长度可以相同也可以不同，本申请不做限制。图12涉及的频域加扰序列可以和图10涉及的加扰序列相同，也可以不相同，本申请不做限制。
待加扰数据中包括
Figure PCTCN2019071266-appb-000050
个子序列，该
Figure PCTCN2019071266-appb-000051
个子序列中的第i个序列为
Figure PCTCN2019071266-appb-000052
Figure PCTCN2019071266-appb-000053
该
Figure PCTCN2019071266-appb-000054
个子序列中的任意两个子序列的长度可以相同也可以不同，本申请不做限制。
如图12所示，对待加扰数据进行时域加扰。基于时域加扰序列中的第i个元素
Figure PCTCN2019071266-appb-000055
对
Figure PCTCN2019071266-appb-000056
中的数据进行加扰，得到
Figure PCTCN2019071266-appb-000057
对应的时域加扰输出数据
Figure PCTCN2019071266-appb-000058
Figure PCTCN2019071266-appb-000059
中第i个元素
Figure PCTCN2019071266-appb-000060
的值等于
Figure PCTCN2019071266-appb-000061
其中，
Figure PCTCN2019071266-appb-000062
为
Figure PCTCN2019071266-appb-000063
中第j个数据，j＝0,…,K i-1。
如图12所示，对时域加扰输出数据进行频域加扰，得到加扰输出数据。
Figure PCTCN2019071266-appb-000064
对应的加扰输出数据可以表示为
Figure PCTCN2019071266-appb-000065
其中，
Figure PCTCN2019071266-appb-000066
为子序列
Figure PCTCN2019071266-appb-000067
中第j个元素，j＝0,…,K i-1。
在本申请实施例提供的方法中，加扰序列可以是根据第一序列的初始值确定的，其中，第一序列用于确定加扰序列。
示例性地，在第一种确定加扰序列的方法中，加扰序列的长度为L，可以根据公式(1)确定加扰序列中的第m个元素的值r(m)，m＝0,1,...,L-1，L为正整数，其中：
Figure PCTCN2019071266-appb-000068
其中，上述序列c为Gold序列，序列c中的值还可以描述为c(n)，c(n)可以等于至少2个m序列的模2相加，示例性地：
c(n)＝(x 2(n+N C)+x 1(n+N C))mod 2
x 2(n+31)＝(x 2(n+3)+x 2(n))mod 2                 (公式2)
x 1(n+31)＝(x 1(n+3)+x 1(n+2)+x 1(n+1)+x 1(n))mod 2
其中，N C为整数，示例性地N C＝1600。可以根据应用场景的需求确定第一个m序列x 1的初始值。示例性地，属于不同小区的UE采用不同的初始值，可以降低不同小区间的干扰。再示例性地，属于同一小区的不同UE采用不同的初始值，可以降低同一小区不同UE间的干扰。第二个m序列x 2的初始值为x 2(0)＝1；x 2(n)＝0,n＝1,2,3,...,30。如果第二个m序列的初始值为预配置的，第一个m序列的初始值为根据应用场景的需求确定的，加扰序列的值取决于第一个m序列初始值的选取，即可以根据第一个m序列的初始值确定加扰序列。其中，m序列可以用于还可以称为其它名称，本申请不做限制。
再示例性地，在第二种确定加扰序列的方法中，当加扰序列长度L为12时，根据 表1中的第u行的
Figure PCTCN2019071266-appb-000069
确定的值d(m)为加扰序列中第m个元素,m＝0,1,...,L-1，其中
Figure PCTCN2019071266-appb-000070
c(n)同第一种确定加扰序列的方法中的公式2中的c(n)，c(n)的取值可以根据第一个m序列的初始值确定的，即可以根据第一个m序列的初始值确定加扰序列。
表1
Figure PCTCN2019071266-appb-000071
可以通过以下第一种初始值确定方式至第三种初始值确定方式中任一种确定第一序列的初始值。
第一种初始值确定方式：
第一序列的初始值是根据小区标识和第一时间单元标识确定的。
在本申请实施例中，基站和UE进行数据传输时，基站可以管理至少一个小区，一个小区中可以有X个UE，用户可以在小区中和基站进行数据传输。其中，X为大于或者等于0的整数。示例性地，基站管理3个小区，该3个小区为小区A、小区B和小区C，小区A中有UE 1A和UE 2A(还可以描述为：UE 1A和UE 2A所在的小区为小区A)，小区B中有UE 1B(还可以描述为：UE 1B所在的小区为小区B)，小区C中有UE 1C和UE 2C(还可以描述为：UE 1C和UE 2C所在的小区为小区C)。 UE 1A和UE 2A可以在小区A中和基站进行数据传输，UE 1B可以在小区B中和基站进行数据传输，UE 1C和UE 2C可以在小区C中和基站进行数据传输。
在第一种初始值确定方式中，基站和UE在小区中进行数据传输时，第一序列的初始值是根据该小区的小区标识和第一时间单元标识确定的，其中，第一时间单元标识为用于传输加扰输出数据的第一时间单元对应的标识或索引。第一时间单元可以是本申请实施例描述的任意类型的时间单元，为了简化描述，以第一时间单元是时隙为例描述第一种初始值确定方式。
示例性地，第一序列初始值可以为
Figure PCTCN2019071266-appb-000072
其中，
Figure PCTCN2019071266-appb-000073
为小区标识，n s为用于传输加扰输出数据的时隙对应的索引。
示例性地，第一序列初始值还可以为
Figure PCTCN2019071266-appb-000074
其中，
Figure PCTCN2019071266-appb-000075
为小区标识，n s为用于传输加扰输出数据的时隙对应的索引。
第二种初始值确定方式：
第一序列的初始值是根据小区标识、UE标识和第一时间单元标识确定的。
在第二种初始值确定方式中，基站和UE在小区中进行数据传输时，第一序列的初始值是根据该小区的小区标识、该UE的UE标识和第一时间单元标识确定的，其中，第一时间单元标识为用于传输加扰输出数据的第一时间单元对应的标识或索引。第一时间单元可以是本申请实施例描述的任意类型的时间单元，为了简化描述，以第一时间单元是时隙为例描述第二种初始值确定方式。
示例性地，第一序列初始值可以为
Figure PCTCN2019071266-appb-000076
其中，
Figure PCTCN2019071266-appb-000077
为小区标识，n s为用于传输加扰输出数据的时隙对应的索引，n RNTI为UE标识。
示例性地，第一序列初始值还可以为
Figure PCTCN2019071266-appb-000078
其中，
Figure PCTCN2019071266-appb-000079
为小区标识，n s为用于传输加扰输出数据的时隙对应的索引，n RNTI为UE标识。
第三种初始值确定方式：
在第三种初始值确定方式中，基站和UE在小区中进行数据传输时，第一序列的初始值是根据小区标识、UE组标识和第一时间单元标识确定的。其中，UE组标识用于标识UE所在的UE组，一个UE组中包括一个或者多个UE，一个小区中可以包括一个或者多个UE组。其中，第一时间单元标识为用于传输加扰输出数据的第一时间单元对应的标识或索引。第一时间单元可以是本申请实施例描述的任意类型的时间单元，为了简化描述，以第一时间单元是时隙为例描述第二种初始值确定方式。
示例性地，第一序列初始值可以为
Figure PCTCN2019071266-appb-000080
其中，
Figure PCTCN2019071266-appb-000081
为小区标识，n s为用于传输加扰输出数据的时隙对应的索引，n G-RNTI为UE组标识。
示例性地，第一序列初始值还可以为
Figure PCTCN2019071266-appb-000082
其中，
Figure PCTCN2019071266-appb-000083
为小区标识，n s为用于传输加扰输出数据的时隙对应的索引，n G-RNTI为UE组标识。
在本申请实施例提供的方法中，还可以包括：发送端确定发送波形，该发送波形可以用于发送加扰输出数据。发送端可以基于以下第一种发送波形确定方式至第三种发送波形确定方式中至少一种方式确定发送波形。
第一种发送波形确定方式：
发送端可以通过预配置的方式确定发送波形。如果本申请实施例提供的技术方案用于基站和UE间的通信，可以预配置上行发送波形和下行发送波形中至少一个。其中，上行发送波形用于UE向基站发送数据，下行发送波形用于基站向UE发送数据。示例性地，可以预配置上行发送波形为DFT-s-OFDM波形。再示例性地，可以预配置下行发送波形为CP-OFDM波形。
第二种发送波形确定方式：
如果发送端是基站，接收端是UE，基站和UE进行下行数据传输，基站可以使用CP-OFDM波形或者DFT-s-OFDM波形向UE发送数据。
基站可以确定发送波形，并将确定的发送波形通知给UE。
示例性地，基站可以根据基站和UE间的信道质量确定发送波形。示例性地，基站可以测量基站和UE间的信道质量，基站也可以接收UE上报的基站和UE间的信道质量，基站根据该信道质量确定发送波形。如果该信道质量大于门限值或大于等于门限值，基站确定发送波形为CP-OFDM；如果该信道质量小于等于门限值或小于门限值，基站确定发送波形为DFT-s-OFDM。
基站可以通过以下方式2A至方式2D中任一种方式向UE通知发送波形。
方式2A：
基站可以向UE发送信令，通过信令向UE发送波形信息，该波形信息用于指示发送波形。示例性地，如果波形信息为0，发送波形为CP-OFDM波形；如果波形信息为1，发送波形为DFT-s-OFDM波形。再示例性地，如果波形信息为1，发送波形为CP-OFDM波形；如果波形信息为0，发送波形为DFT-s-OFDM波形。
在本申请实施例提供的方法中，信令可以是高层信令或者物理层信令。高层信令可以为无线资源控制(radio resource control，RRC)信令、广播消息、系统消息或媒体接入控制(medium access control，MAC)控制元素(control element，CE)。物理层信令可以为物理控制信道携带的信令或者物理数据信道携带的信令，其中，物理控制信道携带的信令可以为物理下行控制信道携带的信令、增强物理下行控制信道(enhanced physical downlink control channel,EPDCCH)携带的信令、窄带物理下行控制信道(narrowband physical downlink control channel,NPDCCH)携带的信令或机器类通信物理下行控制信道(machine type communication(MTC)physical downlink control channel，MPDCCH)携带的信令。物理下行控制信道携带的信令还可以称为下行控制信息(downlink control information，DCI)。物理控制信道携带的信令还可以为物理副链路控制信道(physical sidelink control channel)携带的信令，物理副链路控制信道携 带的信令还可以称为副链路控制信息(sidelink control information，SCI)。
方式2B：
基站可以向UE发送参考信号，UE接收参考信号，根据参考信号(reference signal，RS)确定发送波形。
在本申请实施例中，RS主要用于进行信道估计或信道测量，其还可以称为导频或者其它名称，本申请不做限制。示例性地，基站和UE进行通信时，可以传输参考信号，用于进行信道状态估计或信道测量，基站和UE可以基于估计的信道状态或信道测量量匹配地进行数据传输，从而可以提高数据传输速率。
示例性地，当基站和UE进行下行数据传输时，基站向UE发送信道状态信息参考信号(channel state information reference signal，CSI-RS)。UE根据接收到的CSI-RS进行信道估计，UE将估计到的信道状态信息发送给基站。基站可以根据该信道状态信息对应的信道状态匹配地为UE发送下行数据，从而可以提高下行数据传输速率。在本申请实施例中，CSI-RS为gNB向UE发送的参考信号，用于进行下行信道估计或下行信道测量，其还可以称为下行参考信号或者其它名称，本申请不做限制。进一步地，用于进行下行信道估计的参考信号还可以包括小区特定参考信号(cell-specific reference signal，CRS)和下行解调参考信号(demodulation reference signal，DMRS)中至少一个。
再示例性地，当基站和UE进行上行数据传输时，UE向基站发送探测参考信号(sounding reference signal，SRS)。基站根据接收到的SRS进行信道估计，并根据估计到的信道状态确定传输参数，基站可以将该传输参数发送至UE。UE接收基站发送的传输参数，根据该传输参数向基站发送上行数据。通过该设计，可以使UE根据信道状态匹配地为基站发送上行数据，从而可以提高上行数据传输速率。在本申请实施例中，SRS为UE向基站发送的参考信号，用于进行上行信道估计或上行信道测量，其还可以称为上行参考信号或者其它名称，本申请不做限制。进一步地，用于进行上行信道估计的参考信号还可以包括上行DMRS。
根据参考信号(reference signal，RS)确定发送波形时，示例性地，可以根据RS 图案(pattern)配置确定发送波形。
在本申请实施例中，在用于基站和UE进行数据传输的时频资源中，基站可以基于参考信号图案，以参考信号图案对应的资源粒度为单位确定用于传输参考信号的RE，并在该RE向UE发送参考信号。
图13所示为第一种参考信号图案示例图。如图13所示，参考信号图案对应的资源粒度中包括24个RE，该24个RE对应于频域12个子载波和时域2个符号。在图13所示的参考信号图案中，用于传输参考信号的RE以斜线填充，其在频域表现为间隔为2的梳状分布。进一步地，梳状分布的参考信号图案的配置还可以有大于等于1种。如图13(a)所示，在参考信号图案中，用于传输参考信号的RE的起始频域位置为第0个子载波，用于传输参考信号的相邻RE在频域的间隔为2。如图13(b)所示，在参考信号图案中，用于传输参考信号的RE的起始频域位置为第1个子载波，用于传输参考信号的相邻RE在频域的间隔为2。
图14所示为第二种参考信号图案示例图。如图14所示，参考信号图案对应的资源粒度中包括24个RE，该24个RE对应于频域12个子载波和时域2个符号。在图14所示的参考信号图案中，用于传输参考信号的RE以斜线填充，其为在频域每6个子载波中的2个连续子载波对应的RE。进一步地，第二种参考信号图案的配置还可以有大于等于1种。如图14(a)所示，在参考信号图案中，在频域每6个子载波中，用于传输参考信号的RE为第4个和第5个子载波对应的RE。如图14(b)所示，在参考信号图案中，在频域每6个子载波中，用于传输参考信号的RE为第2个和第3个子载波对应的RE。如图14(c)所示，在参考信号图案中，在频域每6个子载波中，用于传输参考信号的RE为第0个和第1个子载波对应的RE。
在第二种发送波形确定方式中，基站可以根据发送波形确定参考信号图案，根据参考信号图案确定用于传输参考信号的RE，将参考信号映射至用于传输参考信号的RE，在该RE向UE发送参考信号。UE接收参考信号，根据参考信号图案确定对应的发送波形。
在该方法中，UE可以根据预配置确定参考信号图案和发送波形的对应关系；也可以接收基站发送的信令，通过该信令确定参考信号图案和发送波形的对应关系。本申请实施例不限制参考信号图案和发送波形的对应关系。示例性地，当发送波形为CP-OFDM波形时，参考信号图案为第一参考信号图案；当发送波形为DFT-s-OFDM波形时，参考信号图案配置为第二参考信号图案。示例性地，第一参考信号图案可以为图13所示的参考信号图案，第二参考信号图案可以为图14所示的参考信号图案。
根据参考信号(reference signal，RS)确定发送波形时，在一种可能的实现方式中， UE可以根据参考信号的序列类型或序列值确定发送波形。根据该方法，可以使得参考 信号序列的PAPR或者干扰特性能够满足发送波形的需求，提升传输效率。
在本申请实施例中，参考信号可以表示为序列，参考信号的序列类型可以为PN(pseudo noise)序列、ZC(Zadoff-Chu)序列或者其它任意类型的序列，本申请不做限制。
示例性地，当发送波形为CP-OFDM波形时，基站发送至UE的参考信号的序列为PN序列；当发送波形为DFT-s-OFDM波形时，基站发送至UE的参考信号的序列为ZC序列。UE接收基站发送的参考信号，如果参考信号的序列为PN序列，UE确定发送波形为CP-OFDM波形；如果参考信号的序列为ZC序列，UE确定发送波形为DFT-s-OFDM波形。
再示例性地，当发送波形为CP-OFDM波形时，基站发送至UE的参考信号的序列为ZC序列；当发送波形为DFT-s-OFDM波形时，基站发送至UE的参考信号的序列为PN序列。UE接收基站发送的参考信号，如果参考信号的序列为ZC序列，UE确定发送波形为CP-OFDM波形；如果参考信号的序列为PN序列，UE确定发送波形为DFT-s-OFDM波形。
根据参考信号(reference signal，RS)确定发送波形时，在另一种可能的实现方式 中，UE可以根据参考信号的端口确定发送波形。
在进行数据传输时，基站和UE通过信道进行数据传输，一个基站和一个UE可以 通过至少一个信道进行数据传输。一个信道可以对应一个天线端口，通过一个天线端口传输的符号可以根据通过该天线端口传输的其他符号进行推断。示例性地，基站和UE可以通过一个天线端口传输RS和其它数据，RS可以用于进行信道估计，该信道估计结果可以用于解调在该天线端口传输的其它数据。为了支持通过多天线端口同时进行数据传输，以提升系统容量，可以配置多个RS，该多个RS中的每一个可以对应一个天线端口。
配置多个RS时，可以配置不同RS的资源位置不同。图15所示为2天线端口的参考信号图案的一个示例。如图15(a)所示，参考信号图案对应的资源粒度中包括288个RE，该288个RE对应于频域12个子载波和时域14个符号。在图15所示的参考信号图案中，用于传输参考信号的RE以斜线填充。图15(a)中标注为(0)的用于传输参考信号的RE对应于天线端口0，图15(a)中标注为(1)的用于传输参考信号的RE对应于天线端口1。实际应用中，天线端口数还可以为其它正整数，参考信号图案也可以为其它图案，本申请不做限制。
配置多个RS时，也可以配置不同RS的资源位置相同，各RS的序列值不同。示例性地，各RS的序列值是正交的。图15(b)所示为2天线端口的参考信号图案的一个示例。其中，该2个天线端口分别为天线端口0和天线端口1。如图15(b)所示，参考信号图案对应的资源粒度中包括288个RE，该288个RE对应于频域12个子载波和时域14个符号。在图15(b)所示的参考信号图案中，用于传输天线端口0和天线端口1的参考信号的RE以斜线填充，天线端口0和天线端口1的RS的资源位置相同，天线端口0和天线端口1的RS的序列值不同。实际应用中，天线端口数还可以为其它正整数，参考信号图案也可以为其它图案，本申请不做限制。
配置多个RS时，如果该多个RS的资源位置相同，可以通过OCC(orthogonal cover code)码区分该多个RS的序列值。示例地，根据图15(b)所示的参考信号图案，对于天线端口0和天线端口1，在一个子载波对应的两个用于传输RS的RE：天线端口0对应的RS的序列值为OCC码[1,1]乘以符号a，即在该两个RE传输的RS的值相同，分别为a和a；天线端口1对应的RS的序列值为OCC码[1,-1]乘以乘以符号a，即在该两个RE传输的RS的相反，分别为a和-a。其中，a为复数。
实际应用中，配置多个RS时，一个参考信号图案对应的多个RS中，既可以包括资源位置相同的RS，也可以包括资源位置不同的RS，本申请不做限制。
基站可以根据发送波形、以及发送波形和天线端口的对应关系确定天线端口，在该天线端口向UE发送RS。UE接收RS，根据RS对应的天线端口、以及发送波形和天线端口的对应关系确定发送波形。发送波形和天线端口的对应关系可以为：当发送波形为CP-OFDM波形时，天线端口为第一天线端口；当发送波形为DFT-s-OFDM波形时，天线端口为第二天线端口。第一天线端口和第二天线端口不同。
示例性地，表2所示为发送送波形和天线端口的对应关系。如果基站确定的发送波形为CP-OFDM，则可以根据表2确定用于发送RS和其它数据的天线端口为0。
表2
发送波形 天线端口
CP-OFDM波形 0,1,2,3
DFT-s-OFDM波形 4,5,6,7
在该方法中，UE可以根据预配置确定天线端口和发送波形的对应关系；也可以接收基站发送的信令，通过该信令确定天线端口和发送波形的对应关系，本申请实施例不做限制。
方式2C：
UE可以根据预处理码本确定发送波形。
基站可以根据发送波形、以及发送波形和预处理码本的对应关系确定预处理码本，根据该确定的预处理码本对输入数据进行预处理，得到预处理输出数据。UE接收预处理输出数据，根据预处理输出数据的码本、以及发送波形和预处理码本的对应关系确定发送波形。发送波形和预处理码本的对应关系可以为：当发送波形为CP-OFDM波形时，预处理码本为第一预处理码本；当发送波形为DFT-s-OFDM波形时，预处理码本为第二预处理码本。第一预处理码本和第二预处理码本不同。
在该方法中，UE可以根据预配置确定发送波形和预处理码本的对应关系；也可以接收基站发送的信令，通过该信令确定发送波形和预处理码本的对应关系，本申请实施例不做限制。
第三种发送波形确定方式：
如果发送端是UE，接收端是基站，基站和UE进行上行数据传输，UE也可以使用CP-OFDM波形或者DFT-s-OFDM波形向基站发送数据。
UE可以确定发送波形，并将确定的发送波形通知给基站。
示例性地，UE测量基站和UE间的信道质量，根据该信道质量确定发送波形。如果该信道质量大于门限值或大于等于门限值，UE确定发送波形为CP-OFDM；如果该信道质量小于等于门限值或小于门限值，UE确定发送波形为DFT-s-OFDM。
可选地，UE向基站通知发送波形的方法类似第二种发送波形确定方式中基站向UE通知发送波形的方法，这里不再赘述。
上述本申请提供的实施例中，从发送端和接收端的角度对本申请实施例提供的方法进行了介绍。为了实现本申请实施例提供的方法中的各功能，发送端和接收端可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
图16是本申请实施例提供的装置1600的结构示意图。其中，装置1600可以是发送端，能够实现本申请实施例提供的方法中发送端的功能；装置1600也可以是发送端中的装置，该装置能够支持发送端实现本申请实施例提供的方法中发送端的功能。装置1600可以是硬件结构、软件模块、或硬件结构加软件模块。装置1600可以由芯片系统实现。本申请实施例中，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
如图16中所示，装置1600中包括第一确定模块1602、加扰模块1604和通信模块 1606，加扰模块1604和第一确定模块1602耦合，加扰模块1604和通信模块1606耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接，可以是电性，机械或其它的形式，用于装置、单元或模块之间的信息交互。
第一确定模块1602用于根据发送波形确定加扰方式。示例性地，该加扰方式包括频域加扰、时域加扰和时频域加扰中一个或者多个。其中，根据发送波形确定加扰方式的方法可以参考本申请方法实施例中相应的描述，这里不再赘述。
加扰模块1604用于根据加扰方式对待加扰数据进行加扰，得到加扰输出数据。其中，根据加扰方式对待加扰数据进行加扰的方法可以参考本申请方法实施例中相应的描述，这里不再赘述。
通信模块1606用于发送加扰输出数据。通信模块1606用于装置1600和其它模块进行通信，其可以是电路、器件、接口、总线、软件模块、收发器或者其它任意可以实现通信的装置。
装置1600中还可以包括第二确定模块1608，用于确定发送波形，该发送波形用于发送加扰输出数据。第二确定模块1608确定发送波形的方法可以参考本申请方法实施例中相应的描述，例如第一种发送波形确定方式至第三种发送波形确定方式中的一种或多种，这里不再赘述。
图17是本申请实施例提供的装置1700的结构示意图。其中，装置1700可以是接收端，能够实现本申请实施例提供的方法中接收端的功能；装置1700也可以是接收端中的装置，该装置能够支持接收端实现本申请实施例提供的方法中接收端的功能。装置1700可以是硬件结构、软件模块、或硬件结构加软件模块。装置1700可以由芯片系统实现。
如图17中所示，装置1700中包括第一确定模块1702、解扰模块1704和通信模块1706，解扰模块1704和第一确定模块1702耦合、解扰模块1704和通信模块1706耦合。
第一确定模块1702用于根据传输波形确定加扰方式。其中，该加扰方式包括频域加扰、时域加扰和时频域加扰中至少一个。其中，根据传输波形确定加扰方式的方法可以参考本申请方法实施例中相应的描述，这里不再赘述。
通信模块1706用于接收加扰数据。通信模块1706用于装置1700和其它模块进行通信，其可以是电路、器件、接口、总线、软件模块、收发器或者其它任意可以实现通信的装置。
解扰模块1704用于根据加扰方式对接收到的加扰数据进行解扰。
装置1700中还可以包括第二确定模块1708，用于确定传输波形。第二确定模块1708确定传输波形的方法可以参考本申请方法实施例中相应的描述，例如类似第一种发送波形确定方式至第三种发送波形确定方式中相应的描述，这里不再赘述。
图18是本申请实施例提供的装置1800的结构示意图。其中，装置1800可以是发送端，能够实现本申请实施例提供的方法中发送端的功能；装置1800也可以是发送端中的装置，该装置能够支持发送端实现本申请实施例提供的方法中发送端的功能。
如图18中所示，装置1800包括处理系统1802，用于实现或者用于支持发送端实现本申请实施例提供方法中发送端的功能。处理系统1802可以是一种电路，该电路可以由芯片系统实现。处理系统1802中包括一个或多个处理器1822，可以用于实现或者用于支持发送端实现本申请实施例提供的方法中发送端的功能。当处理系统1802中包括除处理器以外的其它装置时，处理器1822还可以用于管理处理系统1802中包括的其它装置，示例性地，该其它装置可能为下述存储器1824、总线1826和总线接口1828中一个或多个。
本申请实施例中，处理器可以是中央处理器(central processing unit，CPU)，通用处理器网络处理器(network processor，NP)、数字信号处理器(digital signal processing，DSP)、微处理器、微控制器、可编程逻辑器件(programmable logic device，PLD)或它们的任意组合。
处理系统1802还可能包括一个或多个存储器1824，用于存储程序指令和/或数据。进一步地，处理器1824还可以包括于处理器1822中。如果处理系统1802包括存储器1824，处理器1822可以和存储器1824耦合。处理器1822可以和存储器1824协同操作。处理器1822可以执行存储器1824中存储的程序指令。当处理器1822执行存储器1824中存储的程序指令时，可以实现或者支持发送端实现本申请实施例提供的方法中发送端的功能。处理器1822还可能读取存储器1824中存储的数据。存储器1824还可能存储处理器1822执行程序指令时得到的数据。
本申请实施例中，存储器包括易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)；存储器也可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器还可以包括上述种类的存储器的组合；存储器还可以包括其它任何具有存储功能的装置，例如电路、器件或软件模块。
处理器1822实现或者支持发送端实现本申请实施例提供的方法时，处理器可以根据发送波形确定加扰方式。其中，加扰方式包括频域加扰、时域加扰和时频域加扰中至少一个。处理器还可以根据加扰方式对待加扰数据进行加扰，得到加扰输出数据并发送加扰输出数据。处理器还可以确定发送波形，用于发送加扰输出数据。处理器1822实现或者支持发送端实现本申请实施例提供的方法时，其采用的具体的方法可以参考本申请方法实施例中的描述，这里不再赘述。
处理系统1802还可以包括总线接口1828，用于提供总线1826和其它装置之间的接口。
装置1800还可能包括收发器1806，用于通过传输介质和其它通信设备进行通信，从而用于装置1800中的其它装置可以和其它通信设备进行通信。其中，该其它装置可能是处理系统1802。示例性地，装置1800中的其它装置可能利用收发器1806和其它通信设备进行通信，接收和/或发送相应的信息。还可以描述为，装置1800中的其它装置可能接收相应的信息，其中，该相应的信息由收发器1806通过传输介质进行接收，该相应的信息可以通过总线接口1828或者通过总线接口1828和总线1826在收发器1806和装置1800中的其它装置之间进行交互；和/或，装置1800中的其它装置可能发送相应的信息，其中，该相应的信息由收发器1806通过传输介质进行发送，该相应的 信息可以通过总线接口1828或者通过总线接口1828和总线1826在收发器1806和装置1800中的其它装置之间进行交互。
装置1800还可能包括用户接口1804，用户接口1804是用户和装置1800之间的接口，可能用于用户和装置1800进行信息交互。示例性地，用户接口1804可能是键盘、鼠标、显示器、扬声器(speaker)、麦克风和操作杆中至少一个。
上述主要从装置1800的角度描述了本申请实施例提供的一种装置结构。在该装置中，处理系统1802包括处理器1822，还可以包括存储器1824、总线1826和总线接口1828中一个或多个，用于实现本申请实施例提供的方法。处理系统1802也在本申请的保护范围。
图19是本申请实施例提供的装置1900的结构示意图。其中，装置1900可以是接收端，能够实现本申请实施例提供的方法中接收端的功能；装置1900也可以是接收端中的装置，该装置能够支持接收端实现本申请实施例提供的方法中接收端的功能。
如图19中所示，装置1900包括处理系统1902，用于实现或者用于支持接收端实现本申请实施例提供方法中接收端的功能。处理系统1902可以是一种电路，该电路可以由芯片系统实现。处理系统1902包括一个或多个处理器1922，可以用于实现或者用于支持接收端实现本申请实施例提供的方法中接收送端的功能。当处理系统1902中包括除处理器以外的其它装置时，处理器1922还可以用于管理处理系统1902中包括的其它装置，示例性地，该其它装置可能为下述存储器1924、总线1926和总线接口1928中一个或多个。
处理系统1902还可能包括一个或多个存储器1924，用于存储程序指令和/或数据。进一步地，处理器1924还可以包括于处理器1922中。如果处理系统1902包括存储器1924，处理器1922可以和存储器1924耦合。处理器1922可以和存储器1924协同操作。处理器1922可以执行存储器1924中存储的程序指令。当处理器1922执行存储器1924中存储的程序指令时，可以实现或者支持接收端实现本申请实施例提供的方法中接收端的功能。处理器1922还可能读取存储器1924中存储的数据。存储器1924还可能存储处理器1922执行程序指令时得到的数据。
处理器1922实现或者支持接收端实现本申请实施例提供的方法时，处理器可以接收加扰数据，根据传输波形确定加扰方式，根据加扰方式对接收到的加扰数据进行解扰，其中，加扰方式包括频域加扰、时域加扰和时频域加扰中至少一个。处理器还可以确定传输波形，用于传输加扰输出数据。处理器1922实现或者支持接收端实现本申请实施例提供的方法时，其采用的具体的方法可以参考本申请方法实施例中的描述，这里不再赘述。
处理系统1902还可以包括总线接口1928，用于提供总线1926和其它装置之间的接口。
装置1900还可能包括收发器1906，用于通过传输介质和其它通信设备进行通信，从而用于装置1900中的其它装置可以和其它通信设备进行通信。其中，该其它装置可能是处理系统1902。示例性地，装置1900中的其它装置可能利用收发器1906和其它通信设备进行通信，接收和/或发送相应的信息。还可以描述为，装置1900中的其它 装置可能接收相应的信息，其中，该相应的信息由收发器1906通过传输介质进行接收，该相应的信息可以通过总线接口1928或者通过总线接口1928和总线1926在收发器1906和装置1900中的其它装置之间进行交互；和/或，装置1900中的其它装置可能发送相应的信息，其中，该相应的信息由收发器1906通过传输介质进行发送，该相应的信息可以通过总线接口1928或者通过总线接口1928和总线1926在收发器1906和装置1900中的其它装置之间进行交互。
装置1900还可能包括用户接口1904，用户接口1904是用户和装置1900之间的接口，可能用于用户和装置1900进行信息交互。示例性地，用户接口1904可能是键盘、鼠标、显示器、扬声器(speaker)、麦克风和操作杆中至少一个。
上述主要从装置1900的角度描述了本申请实施例提供的一种装置结构。在该装置中，处理系统1902包括处理器1922，还可以包括存储器1924、总线1926和总线接口1928中一个或多个，用于实现本申请实施例提供的方法。处理系统1902也在本申请的保护范围。
本申请的装置实施例中，装置的模块划分是一种逻辑功能划分，实际实现时可以有另外的划分方式。例如，装置的各功能模块可以集成于一个模块中，也可以是各个功能模块单独存在，也可以两个或两个以上功能模块集成在一个模块中。
本申请实施例提供的方法中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，DVD))、或者半导体介质(例如,SSD)等。
以上各实施例仅用以说明本申请的技术方案，并不用于限定其保护范围。凡在本申请的技术方案的基础上所做的修改、等同替换、改进等，均应包括在本申请的保护范围之内。

Claims (21)

  1. 一种基于加扰的数据传输方法，其特征在于，包括：
    根据发送波形确定加扰方式；
    根据所述加扰方式对待加扰数据进行加扰，得到加扰输出数据；
    发送所述加扰输出数据。
  2. 根据权利要求1所述的方法，其特征在于，所述根据发送波形确定加扰方式包括：
    如果所述发送波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，所述加扰方式为时域加扰；和/或，
    如果所述发送波形为循环前缀正交频分复用CP-OFDM波形，所述加扰方式为时域加扰、频域加扰或时频域加扰。
  3. 根据权利要求1所述的方法，其特征在于，所述根据发送波形确定加扰方式包括：根据发送波形和预处理码本的类型确定加扰方式。
  4. 根据权利要求3所述的方法，其特征在于，所述根据发送波形和预处理码本类型确定加扰方式包括：
    如果所述发送波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，所述加扰方式为频域加扰。
  5. 根据权利要求1-4中任一个所述的方法，其特征在于，所述根据加扰方式对待加扰数据进行加扰，得到加扰输出数据，包括：
    根据所述加扰方式，基于加扰序列对待加扰数据进行加扰，得到加扰输出数据，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据UE的UE组标识确定的，所述加扰输出数据是对应于所述UE的数据。
  6. 一种装置，其特征在于，包括：
    确定模块，用于根据发送波形确定加扰方式；
    加扰模块，用于根据所述加扰方式对待加扰数据进行加扰，得到加扰输出数据；
    通信模块，用于发送所述加扰输出数据。
  7. 根据权利要求6所述的装置，其特征在于，所述确定模块根据发送波形确定加扰方式包括：
    如果所述发送波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，所述确定模块确定所述加扰方式为时域加扰；和/或，
    如果所述发送波形为循环前缀正交频分复用CP-OFDM波形，所述确定模块确定所述加扰方式为时域加扰、频域加扰或时频域加扰。
  8. 根据权利要求6所述的装置，其特征在于，所述确定模块根据发送波形确定加扰方式包括：所述确定模块根据发送波形和预处理码本的类型确定加扰方式。
  9. 根据权利要求8所述的装置，其特征在于，所述确定模块根据发送波形和预处理码本类型确定加扰方式包括：
    如果所述发送波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，所述确定模块确定所述加扰方式为频域加扰。
  10. 根据权利要求6至9中任一个所述的装置，其特征在于，所述加扰模块根据加扰方式对待加扰数据进行加扰，得到加扰输出数据，包括：
    所述加扰模块根据所述加扰方式，基于加扰序列对待加扰数据进行加扰，得到加扰输出数据，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据UE的UE组标识确定的，所述加扰输出数据是对应于所述UE的数据。
  11. 一种装置，其特征在于，用于实现如权利要求1-5任一项所述的方法。
  12. 一种装置，包括处理器和存储器，所述存储器中存储有指令，所述处理器执行所述指令时，使所述装置执行权利要求1-5任一项所述的方法。
  13. 一种基于加扰的数据传输方法，其特征在于，包括：
    接收加扰数据；
    根据传输波形确定加扰方式；
    根据所述加扰方式对接收到的加扰数据进行解扰。
  14. 根据权利要求13所述的方法，其特征在于，所述根据传输波形确定加扰方式，包括：
    如果所述传输波形为离散傅里叶扩展正交频分复用DFT-s-OFDM波形，所述加扰方式为时域加扰；和/或，
    如果所述传输波形为循环前缀正交频分复用CP-OFDM波形，所述加扰方式为时域加扰、频域加扰或时频域加扰。
  15. 根据权利要求13所述的方法，其特征在于，所述根据传输波形确定加扰方式包括：
    根据传输波形和预处理码本的类型确定加扰方式。
  16. 根据权利要求15所述的方法，其特征在于，所述根据传输波形和预处理码本的类型确定加扰方式包括：
    如果所述传输波形为CP-OFDM波形且所述预处理码本的类型为扩展序列，所述加扰方式为频域加扰。
  17. 根据权利要求13-16任一个所述的方法，其特征在于，所述根据加扰方式对接收到的加扰数据进行解扰，包括：
    根据所述加扰方式，基于加扰序列对接收到的加扰数据进行解扰，其中，所述加扰序列是根据第一序列确定的，所述第一序列的初始值是根据用户设备UE的UE组标识确定的，所述加扰数据是对应于所述UE的数据。
  18. 一种装置，其特征在于，用于实现如权利要求13-17任一项所述的方法。
  19. 一种装置，包括处理器和存储器，所述存储器中存储有指令，所述处理器执行所述指令时，使所述装置执行权利要求13-17任一项所述的方法。
  20. 一种通信系统，其特征在于，包括权利要求6-12任一项所述的装置，和权利要求18或19所述的装置。
  21. 一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行权利要求1-5任一项所述的方法，或者使得计算机执行权利要求13-17任一项所述的方法。
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