WO2016026115A1 - 一种生成、处理频分多波形信号的方法和装置 - Google Patents
一种生成、处理频分多波形信号的方法和装置 Download PDFInfo
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- WO2016026115A1 WO2016026115A1 PCT/CN2014/084902 CN2014084902W WO2016026115A1 WO 2016026115 A1 WO2016026115 A1 WO 2016026115A1 CN 2014084902 W CN2014084902 W CN 2014084902W WO 2016026115 A1 WO2016026115 A1 WO 2016026115A1
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- 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
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/264—Pulse-shaped multi-carrier, i.e. not using rectangular window
- H04L27/26416—Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
-
- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/26534—Pulse-shaped multi-carrier, i.e. not using rectangular window
- H04L27/2654—Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]
-
- 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
- H04L5/0037—Inter-user or inter-terminal allocation
Definitions
- the present invention relates to the field of communications, and in particular, to a method and apparatus for generating and processing a frequency division multi-waveform signal. Background technique
- Multi-carrier modulation technology is widely used for its good resistance to frequency selective fading.
- Common multi-carrier technologies include: Filter Bank Multicarrier (FBMC) technology and Orthogonal Frequency Division Multiplexing (Orthogonal) Frequency Division Multiplexing (OFDM) technology.
- FBMC Filter Bank Multicarrier
- OFDM Orthogonal Frequency Division Multiplexing
- Embodiments of the present invention provide a method and apparatus for generating and processing a frequency division multi-waveform signal, which enables a system to simultaneously support multiple multi-carrier techniques.
- a method for generating a frequency division multi-waveform signal including: mapping a first type of data stream to be transmitted to a subcarrier corresponding to a first waveform component, generating M frequency domain symbols, and performing a second type of Transmitting a data stream to a subcarrier corresponding to the second waveform component, and generating N frequency domain symbols, where the M and the N are positive integers;
- the first waveform component is a first filter group multi-carrier FBMC waveform component
- the second waveform component is The second FBMC waveform component
- the M frequency-frequency filtered and the frequency domain-filtered N frequency domain symbols generate time domain signals, including:
- L is a positive integer greater than 1, and the frequency domain filtered M frequency domain symbols and frequency domain filtering are performed.
- the subsequent N frequency domain symbols generate a time domain signal composed of L time domain symbols, including:
- the subcarrier spacing corresponding to the first waveform component is different from the subcarrier spacing corresponding to the second waveform.
- the subcarrier corresponding to the first waveform component is different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are at least separated by rl+ R2-l basic subcarrier spacing; wherein, rl indicates that the subcarrier spacing corresponding to the first waveform component is equivalent to rl basic subcarrier spacings, rl is a positive integer, and r2 represents the second waveform component The corresponding subcarrier spacing is equivalent to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is a first filter group multi-carrier FBMC waveform component
- the subcarrier spacing corresponding to the first FBMC waveform component is r basic subcarrier spacing; the r is an overlapping coefficient of the prototype filter corresponding to the first FBMC waveform component, and r is a positive integer.
- the method further includes: transmitting the shift operation information to the receiver.
- a method for processing a frequency division multi-waveform signal comprising: determining a reception time of a time domain signal including a first waveform component and a second waveform component;
- the first wave is formed into a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component
- the data in each subcarrier in the frequency domain signal is subjected to frequency domain filtering to obtain the first waveform.
- the M frequency domain symbols corresponding to the component and the N frequency domain symbols corresponding to the second waveform component include:
- the determining includes the first waveform component and the second Before the time of receiving the time domain signal of the waveform component, the method further includes:
- the determining a receiving time of the time domain signal including the first waveform component and the second waveform component includes:
- a reception timing of the time domain signal is determined according to the shift operation information.
- a method for generating a frequency division multi-waveform signal including: mapping a first type of data stream to be transmitted to a subcarrier corresponding to a first waveform component, generating M frequency domain symbols, and performing a second type of waiting The transmit data stream is mapped to the second waveform component Generating N frequency domain symbols on the corresponding subcarriers, where the M and the N are positive integers;
- the first wave is formed into an orthogonal frequency division multiplexing OFDM waveform component
- the second waveform component is a filter bank multi-carrier FBMC waveform component.
- the subcarrier spacing corresponding to the FBMC waveform component is an integer multiple of a subcarrier spacing corresponding to the OFDM wave forming component.
- the M frequency domain symbols and frequencies are The domain-filtered N frequency domain symbols generate a time domain signal, including:
- L is a positive integer greater than 1
- the M frequency domain symbols and the frequency domain filtered N The frequency domain symbols generate time domain signals, including:
- a time interval between the a-th time-domain symbol and the b-th time-domain symbol in the L time-domain symbols is equal to a time-domain symbol interval corresponding to any waveform involved in the a-th time-domain symbol
- the a-th time-domain symbol is any one of the L-1 time-domain symbols
- the b-th time-domain symbol is before the a-th time-domain symbol a time domain symbol of any waveform involved in the a-th time domain symbol, which is the closest to the a-th time domain symbol;
- the subcarrier corresponding to the first waveform component is different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are at least separated by rl+ R2-l basic subcarrier spacing; wherein, rl indicates that the subcarrier spacing corresponding to the first waveform component is equivalent to rl basic subcarrier spacings, rl is a positive integer, and r2 represents the second waveform component The corresponding subcarrier spacing is equivalent to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the subcarrier spacing corresponding to the OFDM waveform component is 1 basic subcarrier spacing; or, the second waveform component is a filter bank multicarrier FBMC waveform component, and the subcarrier spacing corresponding to the FBMC waveform component is r basic subcarriers
- the interval is an overlap coefficient of the prototype filter corresponding to the FBMC waveform component, and r is a positive integer.
- the method further includes: sending the shift operation information to the receiver.
- a fourth aspect provides a method for processing a frequency division multi-waveform signal, comprising: determining a reception time of a time domain signal including a first waveform component and a second waveform component;
- the first wave is formed into an Orthogonal Frequency Division Multiplexing (OFDM) waveform component
- the second waveform component is a filter bank multi-carrier FBMC waveform component.
- OFDM Orthogonal Frequency Division Multiplexing
- the method before the determining a time of receiving the time domain signal including the first waveform component and the second waveform component, the method further includes:
- the determining a receiving time of the time domain signal including the first waveform component and the second waveform component includes:
- a reception timing of the time domain signal is determined according to the shift operation information.
- a transmitter device including:
- mapping unit configured to map the first type of data stream to be transmitted to the subcarrier corresponding to the first waveform component, generate M frequency domain symbols, and map the second type of data stream to be transmitted to the subcarrier corresponding to the second waveform component Up, generating N frequency domain symbols, where M and the N are positive integers;
- a frequency domain filtering unit configured to: the M frequency domain symbols and the N frequency domain symbols Number for frequency domain filtering;
- a generating unit configured to generate the time domain signal by using the M frequency domain symbols after the frequency domain filtering and the N frequency domain symbols filtered by the frequency domain.
- the first wave is formed into a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component
- the generating unit is specifically configured to: compress the frequency domain-filtered M frequency domain symbols and The frequency domain-filtered N frequency-domain symbols generate a time-domain signal composed of L time-domain symbols, where L is less than or equal to a sum of the M and the N;
- the start time of the time domain symbol corresponding to one data stream in the sending data stream is the same as the start time of the time domain symbol corresponding to one data stream in the second type of data stream to be sent, and the two data streams correspond to
- the frequency domain symbol corresponds to a time domain symbol for the starting time in the L time domain symbols.
- L is a positive integer greater than 1, and the generating unit is specifically configured to:
- the subcarrier spacing corresponding to the first waveform component is The subcarriers corresponding to the second waveform have different intervals.
- the subcarrier corresponding to the first waveform component is different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are at least separated by rl+ R2-l basic subcarrier spacing; wherein, rl indicates that the subcarrier spacing corresponding to the first waveform component is equivalent to rl basic subcarrier spacings, rl is a positive integer, and r2 represents the second waveform component The corresponding subcarrier spacing is equivalent to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is a first filter group multi-carrier FBMC waveform component
- the subcarrier spacing corresponding to the first FBMC waveform component is r basic subcarrier spacing; the r is an overlapping coefficient of the prototype filter corresponding to the first FBMC waveform component, and r is a positive integer.
- the transmitting device further includes:
- a sending unit configured to send the shift operation information to the receiver.
- a receiver device including:
- a determining unit configured to determine a receiving moment of the time domain signal including the first waveform component and the second waveform component
- a receiving unit configured to receive the time domain signal according to the receiving moment
- a generating unit configured to generate the frequency domain signal by using the time domain signal
- a frequency domain filtering unit configured to input data on each subcarrier in the frequency domain signal Performing frequency domain filtering to obtain M frequency domain symbols corresponding to the first waveform component and N frequency domain symbols corresponding to the second waveform component, where M and the N are positive integers; a signal detecting unit, And performing signal detection on the M frequency domain symbols and the N frequency domain symbols to obtain information carried by the time domain signal.
- the first wave is formed into a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component
- the frequency domain filtering unit is specifically configured to:
- the receiving unit is further configured to receive, by the transmitting side, the shift operation information of the time domain signal including the first waveform component and the second waveform component;
- the determining unit is specifically configured to determine, according to the shift operation information, a receiving moment of the time domain signal.
- a transmitter device including:
- mapping unit configured to map the first type of data stream to be transmitted to the subcarrier corresponding to the first waveform component, generate M frequency domain symbols, and map the second type of data stream to be transmitted to the subcarrier corresponding to the second waveform component Up, generating N frequency domain symbols, where M and the N are positive integers;
- a frequency domain filtering unit configured to perform frequency domain filtering on the N frequency domain symbols
- a generating unit configured to generate the time domain signal by using the M frequency domain symbols and the frequency domain filtered N frequency domain symbols.
- the first wave forming is divided into orthogonal frequency division multiplexing OFDM waveform components, and the second waveform component is a filter bank multi-carrier FBMC waveform component.
- the subcarrier spacing corresponding to the FBMC waveform component is an integer multiple of a subcarrier spacing corresponding to the OFDM wave forming component.
- the generating unit is specifically configured to: The frequency domain symbols and the frequency domain filtered N frequency domain symbols generate a time domain signal composed of L time domain symbols, wherein the L is smaller than a sum of the M and the N; The start time of the time domain symbol corresponding to one of the data streams to be sent is the same as the start time of the time domain symbol corresponding to one of the second type of data streams to be sent, then the two The frequency domain symbol corresponding to the data stream corresponds to a time domain symbol for the starting time in the L time domain symbols.
- L is a positive integer greater than 1, and the generating unit is specifically configured to:
- the subcarrier corresponding to the first waveform component is different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are at least separated by rl+ R2-l basic subcarrier spacing; wherein, rl indicates that the subcarrier spacing corresponding to the first waveform component is equivalent to rl basic subcarrier spacings, rl is a positive integer, and r2 represents the second waveform component The corresponding subcarrier spacing is equivalent to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the subcarrier spacing corresponding to the OFDM waveform component is 1 basic subcarrier spacing; or, the second waveform component is a filter bank multicarrier FBMC waveform component, and the subcarrier spacing corresponding to the FBMC waveform component is r basic subcarriers
- the interval is an overlap coefficient of the prototype filter corresponding to the FBMC waveform component, and r is a positive integer.
- the transmitting device further includes: a sending unit, configured to send the positioning operation information to the receiving party.
- a receiver device including:
- a determining unit configured to determine a receiving moment of the time domain signal including the first waveform component and the second waveform component
- a receiving unit configured to receive the time domain signal according to the receiving moment; and a generating unit, configured to generate the frequency domain signal, the frequency domain signal, by using the time domain signal Include M frequency domain symbols corresponding to the first waveform component;
- a frequency domain filtering unit configured to perform frequency domain filtering on data on a subcarrier corresponding to the second waveform component in the frequency domain signal, to obtain N frequency domain symbols corresponding to the second waveform component;
- the signal detecting unit is configured to perform signal detection on the M frequency domain symbols and the frequency domain filtered N frequency domain symbols to obtain information carried by the time domain signal.
- the first wave forming is divided into orthogonal frequency division multiplexing OFDM waveform components, and the second waveform component is a filter bank multi-carrier FBMC waveform component.
- the receiving unit is further configured to: receive, by the transmitting, the first waveform component and the second waveform component Shift operation information of the time domain signal;
- the determining unit is specifically configured to determine, according to the shift operation information, a receiving moment of the time domain signal.
- a transmitter device comprising: a memory and a processor, wherein the memory is configured to store a set of codes for controlling the processor to perform the following actions:
- the first waveform component is a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component.
- the processor is specifically configured to: perform frequency domain filtering on the M frequency domain symbols and frequencies
- the domain-filtered N frequency-domain symbols generate a time domain signal composed of L time-domain symbols, and the L is less than or equal to a sum of the M and the N; wherein, if the first class is to be sent
- the start time of the time domain symbol corresponding to one data stream in the data stream is the same as the start time of the time domain symbol corresponding to one data stream in the second type of data stream to be sent, and the two data streams correspond to
- the frequency domain symbol corresponds to a time domain symbol for the start time in the L time domain symbols.
- L is a positive integer greater than 1, and the processor is specifically configured to:
- the subcarrier spacing corresponding to the first waveform component is The subcarriers corresponding to the second waveform have different intervals.
- the subcarrier corresponding to the first waveform component is the same basis Different base subcarriers in the subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are at least separated by rl+ R2-l basic subcarrier spacing; wherein, rl indicates that the subcarrier spacing corresponding to the first waveform component is equivalent to rl basic subcarrier spacings, rl is a positive integer, and r2 represents the second waveform component The corresponding subcarrier spacing is equivalent to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is a first filter group multi-carrier FBMC waveform component
- the subcarrier spacing corresponding to the first FBMC waveform component is r basic subcarrier spacing; the r is an overlapping coefficient of the prototype filter corresponding to the first FBMC waveform component, and r is a positive integer.
- the transmitting device further includes:
- the transmitter is configured to send the shift operation information to the receiver.
- a receiver device comprising: a memory and a processor, wherein the memory is configured to store a set of codes for controlling the processor to perform the following actions:
- the first waveform component is a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component
- the processor is specifically configured to:
- the receiving device further includes:
- a receiver configured to receive shift operation information of a time domain signal including a first waveform component and a second waveform component sent by the transmitter;
- the processor is specifically configured to determine a receiving time of the time domain signal according to the shift operation information.
- a transmitter device comprising: a memory and a processor, wherein the memory is configured to store a set of codes for controlling the processor to perform the following actions:
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the second waveform component is a filter group multi-carrier FBMC waveform component.
- the subcarrier spacing corresponding to the FBMC waveform component is an integer multiple of a subcarrier spacing corresponding to the OFDM waveform component.
- the processor is specifically used to The M frequency domain symbols and the frequency domain filtered N frequency domain symbols generate a time domain signal composed of L time domain symbols, wherein the L is smaller than a sum of the M and the N;
- the start time of the time domain symbol corresponding to one of the first type of data streams to be sent is the same as the start time of the time domain symbol corresponding to one of the second type of data streams to be sent,
- the frequency domain symbols corresponding to the two data streams correspond to the time domain symbols for the starting time in the L time domain symbols.
- L is a positive integer greater than 1, and the processor is specifically configured to:
- the subcarrier corresponding to the first waveform component is different base subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are at least separated by rl +r2 - 1 basic subcarrier spacing; wherein, rl indicates that the subcarrier spacing corresponding to the first waveform component is equivalent to rl basic subcarrier spacings, rl is a positive integer, and r2 represents the second waveform
- the subcarrier spacing corresponding to the component corresponds to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component, where The subcarrier spacing corresponding to the OFDM waveform component is one basic subcarrier spacing; or, the second waveform component is a filter bank multicarrier FBMC waveform component, and the subcarrier spacing corresponding to the FBMC waveform component is r basic subintervals Carrier spacing; the r is an overlap coefficient of a prototype filter corresponding to the FBMC waveform component, and r is a positive integer.
- the transmitting device further includes: a transmitter, configured to send the positioning operation information to the receiver.
- a receiver device including: a memory and a processor, wherein the memory is configured to store a set of codes for controlling the processor to perform the following actions:
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the second waveform component is a filter group multi-carrier FBMC waveform component.
- the receiver device further includes:
- a receiver configured to receive shift operation information of a time domain signal including a first waveform component and a second waveform component sent by the transmitter;
- the processor is specifically configured to determine a receiving time of the time domain signal according to the shift operation information.
- the method and apparatus for generating and processing a frequency division multi-waveform signal provided by the embodiments of the present invention can use a plurality of waveforms in the same system. Specifically, multiple waveforms can be realized simultaneously by the same transmitting side. That is to say, one system can support multiple multi-carrier technologies.
- FIG. 1 is a schematic flowchart of a method for generating a frequency division multi-waveform signal according to Embodiment 1 of the present invention
- 2 is a schematic flowchart of a method for generating a frequency division multi-waveform signal according to Embodiment 1 of the present invention
- FIG. 3 is a schematic diagram showing the relationship between the first FBMC wave forming component and the second FBMC waveform component in the frequency domain according to Example 1 according to Embodiment 1 of the present invention
- FIG. 4 is a schematic diagram of a mapping based on example 1 according to Embodiment 1 of the present invention
- FIG. 5 is a start time of a time domain symbol based on a frequency domain symbol and a single waveform component according to Example 1 according to Embodiment 1 of the present invention
- Distribution map is a schematic diagram of a mapping based on example 1 according to Embodiment 1 of the present invention.
- FIG. 6 is a schematic diagram of a frequency domain symbol obtained by frequency domain filtering according to Example 1 according to Embodiment 1 of the present invention.
- FIG. 7 is a schematic diagram of a frequency domain symbol obtained by frequency domain filtering according to Example 1 according to Embodiment 1 of the present invention.
- FIG. 8 is a schematic diagram of L frequency division multi-wavelength time domain symbols according to Example 1 according to Embodiment 1 of the present invention.
- FIG. 9 is a schematic diagram of L frequency division multi-waveform time domain symbols after a shift operation according to Example 1 according to Embodiment 1 of the present invention.
- FIG. 10 is a schematic diagram of a time domain signal based on Example 1 according to Embodiment 1 of the present invention.
- FIG. 1 is a distribution diagram of a start time of a time domain symbol based on a frequency domain symbol and a single waveform component according to Example 2 according to Embodiment 1 of the present invention
- FIG. 12 is a schematic diagram of L frequency division multi-waveform time domain symbols according to Example 2 according to Embodiment 1 of the present invention.
- FIG. 13 is a schematic diagram of L frequency division multi-waveform time domain symbols after a shift operation according to Example 2 according to Embodiment 1 of the present invention.
- FIG. 14 is a schematic flowchart of a method for processing a frequency division multi-waveform signal according to Embodiment 2 of the present invention.
- 15 is a schematic flowchart of a method for generating a frequency division multi-waveform signal according to Embodiment 3 of the present invention
- 16 is a schematic flowchart of a method for generating a frequency division multi-waveform signal according to Embodiment 2 of the present invention
- 17 is a schematic diagram showing the relationship between the FBMC waveform component and the OFDM waveform component in the frequency domain according to Example 3 according to Embodiment 2 of the present invention.
- FIG. 18 is a distribution diagram of a start time of a time domain symbol based on a frequency domain symbol and a single waveform component according to Example 3 according to Embodiment 2 of the present invention
- FIG. 19 is a schematic diagram of an OFDM frequency domain symbol based on Example 3 and a filtered FBMC frequency domain symbol according to Embodiment 2 of the present invention.
- FIG. 20 is a schematic diagram of a filtered FBMC frequency domain symbol based on Example 3 according to Embodiment 2 of the present invention.
- FIG. 21 is a schematic diagram of L frequency division multi-waveform time domain symbols according to Example 3 according to Embodiment 2 of the present invention.
- FIG. 22 is a schematic diagram of L frequency division multi-waveform time domain symbols after a shift operation according to Example 3 according to Embodiment 2 of the present invention.
- FIG. 23 is a schematic flowchart of a method for processing a frequency division multi-waveform signal according to Embodiment 4 of the present invention.
- FIG. 24 is a schematic structural diagram of a transmitting device according to Embodiment 5 of the present invention
- FIG. 25 is a schematic structural diagram of another transmitting device according to Embodiment 5 of the present invention.
- FIG. 26 is a schematic structural diagram of a transmitting device according to Embodiment 6 of the present invention
- FIG. 27 is a schematic structural diagram of another transmitting device according to Embodiment 6 of the present invention.
- FIG. 28 is a schematic structural diagram of a receiver device according to Embodiment 7 of the present invention
- FIG. 29 is a schematic structural diagram of a receiver device according to Embodiment 8 of the present invention
- FIG. 3 is a schematic structural diagram of another transmitting device according to Embodiment 9 of the present invention
- 32 is a schematic structural diagram of a transmitting device according to Embodiment 10 of the present invention
- FIG. 33 is a schematic structural diagram of another transmitting device according to Embodiment 10 of the present invention.
- FIG. 34 is a schematic structural diagram of a receiver device according to Embodiment 11 of the present invention.
- FIG. 35 is a schematic structural diagram of a receiver device according to Embodiment 12 of the present invention.
- time domain symbol of a single waveform component herein refers to a time domain symbol generated in a system supporting only one waveform component; specifically, it may include: a time domain symbol of the first waveform component, and a time domain of the second waveform component symbol.
- Frequency-division multi-waveform time-domain symbols refers to time-domain symbols generated in systems that support multiple waveform components. It should be noted that the various waveform components in the same system described in this paper are processed separately in the frequency domain. Therefore, for the same waveform component, the frequency domain symbols generated in the system supporting only one waveform component are The frequency domain symbols generated in a system supporting multiple waveform components are the same, and can be referred to as frequency domain symbols of the waveform components.
- the method and device for generating and processing a frequency division multi-waveform signal provided by the embodiments of the present invention can be applied to a system for simultaneously implementing multiple waveforms, wherein the system can be a cellular network, a wireless local area network, a wireless personal area network, an Internet of Things, The vehicle network and the like; both the transmitting side and the receiving side can be: a base station, an access point (AP) or a user equipment.
- the system can be a cellular network, a wireless local area network, a wireless personal area network, an Internet of Things, The vehicle network and the like; both the transmitting side and the receiving side can be: a base station, an access point (AP) or a user equipment.
- AP access point
- a frequency division multi-waveform signal is generated according to an embodiment of the present invention.
- Methods including:
- the execution body of this embodiment may be a transmitting party.
- This embodiment can be applied to a scene in which frequency domain symbols corresponding to a plurality of waveform components of a plurality of waveform components are subjected to frequency domain filtering. It should be noted that, in specific implementation, whether the transmitting side needs to perform frequency domain filtering on a frequency domain symbol corresponding to a waveform component is related to the type of the waveform component.
- the first waveform component and the second waveform component may be the same type of waveform component, or may be different types of waveform components.
- the first waveform component is the first FBMC waveform component
- the second waveform component is the second FBMC waveform component
- the first waveform component is the FBMC waveform component
- the second waveform component is the super Nyquist (Faster-Than) -Nyquist, referred to as FTN) Waveform component.
- One waveform component corresponds to several subcarriers, and different waveform components correspond to different subcarriers.
- the interval between two adjacent subcarriers corresponding to one waveform component is the same, that is, one waveform component corresponds to one subcarrier interval; the subcarrier spacing corresponding to different waveform components may be the same or different.
- the subcarrier spacing corresponding to the first waveform component is different from the subcarrier spacing corresponding to the second waveform.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are different basic subcarriers in the same basic subcarrier group; wherein, the adjacent two basic subcarriers corresponding to the basic subcarrier group ( That is, the basic subcarrier spacing) is the minimum frequency interval that can be represented in the frequency domain.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are separated by at least rl + r2 - l basic subcarrier spacing; where rl indicates that the subcarrier spacing corresponding to the first waveform component is equivalent to rl basic subcarrier spacing, rl is a positive integer, and r2 indicates that the subcarrier spacing corresponding to the second waveform component is equivalent to r2
- the base subcarrier spacing, r2 is a positive integer.
- the subcarrier spacing corresponding to the first FBMC waveform component is r basic subcarrier spacing; wherein r is a prototype filter corresponding to the first FBMC waveform component
- the overlap coefficient, r is a positive integer.
- the "data stream to be transmitted” is composed of a plurality of data to be transmitted obtained after operations such as channel coding, modulation, precoding, etc., and the data to be transmitted refers to data transmitted by the receiver in the transmission direction.
- the transmitting party can continuously generate data to be sent, and form a fixed number of data to be sent into a data stream to be sent.
- the specific implementation method of the data stream to be sent by the transmitting party, and the specific value of the fixed number are not limited; in a different scenario, the specific value of the fixed number may be different.
- first type of data stream to be transmitted refers to the data stream to be transmitted to be carried on the first waveform component
- second type of data stream to be transmitted refers to the data stream to be transmitted to be carried on the second waveform component.
- the transmitting party may determine which to-be-transmitted data streams are used as the first type of to-be-sent data streams according to factors such as the channel characteristics of the receiver, and which channels to be sent are to be sent as the second type of to-be-sent data streams.
- the receiver can select a waveform component that is more suitable for itself according to its channel characteristics, and feed back information including the waveform component suitable for the transmitter to the transmitting side; the transmitting party can carry the data stream to be transmitted for the receiver in the waveform component. Up, and use this waveform to communicate with the transmitting side. Since there are a large number of receivers in a system, the scheme can improve the performance of the system compared to the same waveform used by all receivers in the same system in the prior art.
- step 101 a data stream to be transmitted corresponds to a frequency domain symbol.
- the transmitting side may separately frequency-domain filter the frequency domain symbols corresponding to different waveform components by using different prototype filters.
- the first waveform component is a first FBMC waveform component
- the second waveform component is a second FBMC waveform component; in this case, the step 102 may include: using the prototype filter corresponding to the first FBMC waveform component to the M
- the first type of data stream to be transmitted in the frequency domain symbols is subjected to frequency domain filtering; and the second is utilized
- the prototype filter corresponding to the FBMC waveform component performs frequency domain filtering on the second type of data stream to be transmitted in the N frequency domain symbols.
- step 102 may include: performing frequency domain on each waveform component that needs to be frequency domain filtered separately. Filtering.
- the step 103 is implemented by: generating, by the frequency domain filtered M frequency domain symbols and the frequency domain filtered N frequency domain symbols, time domain signals formed by L time domain symbols, L And less than or equal to the sum of M and N; wherein, if the start time of the time domain symbol corresponding to one data stream in the first type of data stream to be sent is the time domain corresponding to one data stream in the second type of data stream to be sent The start time of the symbol is the same, and the frequency domain symbols corresponding to the two data streams correspond to the time domain symbols for the start time in the L time domain symbols.
- each time domain symbol in the L time domain symbols is a frequency division multi-waveform time domain symbol.
- one data stream to be transmitted corresponds to one frequency domain symbol
- one frequency domain symbol corresponds to a time domain symbol of a single waveform component.
- one data stream to be transmitted corresponds to one frequency domain symbol
- all frequency domain symbols with the same starting time of the corresponding time domain symbol of the single waveform component correspond to one frequency division multi-waveform time domain symbol.
- the time domain symbol corresponding to one data stream in the first type of data stream to be transmitted refers to the time domain symbol of the first waveform component; "the time domain symbol corresponding to one data stream in the second type of data stream to be transmitted” is Refers to the time domain symbol of the second waveform component.
- L is a positive integer greater than 1, and the frequency domain filtered M frequency domain symbols and the frequency domain filtered N frequency domain symbols are generated by L time domain symbols.
- the time domain signal may include: i) performing inverse Fourier transform on the M frequency domain symbols after frequency domain filtering and the N frequency domain symbols after frequency domain filtering, to generate L time-domain symbols; ii), performing a shift operation on the last L-l time-domain symbols in the L time-domain symbols, such that the a-th time-domain symbol in the L time-domain symbols
- the time interval between the b time domain symbols is equal to the time domain symbol interval corresponding to any waveform involved in the aa time domain symbol; wherein, the ath time domain symbol is the L-1 Any time domain symbol in the time domain symbol, wherein the bth time domain symbol is the time before the ath time domain symbol and is closest to the a time domain symbol, and includes the ath time a time domain symbol of any waveform involved in the domain symbol; iii), superimposing the first time domain symbol of
- the "Fourier inverse transform” herein includes inverse Fourier transforms and their variants implemented in various mathematical or physical ways.
- the method may further comprise: transmitting the shift operation information to the receiver; wherein the shift operation information is for causing the receiver to determine the time of receipt of the time domain signal.
- the frequency domain-filtered M frequency domain symbols and the frequency domain filtered N frequency domain symbols generate a time domain formed by L time domain symbols.
- the signal includes: performing inverse Fourier transform on the M frequency domain symbols after frequency domain filtering and the N frequency domain symbols after frequency domain filtering, and generating one time domain symbol (instant domain signal).
- the "FBMC waveform component" in this paper can be realized by the following scheme: Offset Quadrature Amplitude Modulation (OQAM) scheme based on real symbol, FMT (Filtered multi-tone) based on complex symbol Program.
- OQAM Offset Quadrature Amplitude Modulation
- FMT Frtered multi-tone
- the FBMC waveform component is implemented by the OQAM scheme, the corresponding time domain symbol interval is related to the coefficient of the corresponding prototype filter; when the FBMC waveform component is implemented by the FMT scheme, its corresponding time domain symbol interval and oversampling factor related.
- the method for generating a frequency division multi-waveform signal provided by an embodiment of the present invention can use multiple waveforms in the same system, and specifically, can simultaneously implement multiple types by using the same transmitting side. Waveform. That is, the method enables a system to support multiple multi-carrier techniques.
- the first type of to-be-sent data stream is composed of at least one first to-be-sent data stream
- the second type of to-be-sent data stream is composed of at least one second to-be-sent data stream.
- Each data stream to be sent may be represented by a vector, such that the first type of data stream to be transmitted may be represented as a set 1: [ , ⁇ , ⁇ Z ] , wherein each element in the set 1 represents a first to be sent Data stream;
- the second type of data stream to be sent can be represented as set 2:
- each element in set 2 represents a second data stream to be transmitted.
- first waveform component is the first FBMC waveform component in this embodiment
- second waveform component is the second FBMC waveform component in this embodiment.
- the subcarrier corresponding to the first FBMC waveform component and the second FBMC waveform component are different basic subcarriers in the same basic subcarrier group; the duration of each time domain symbol of the first FBMC waveform component The time is equal to the duration of each time domain symbol of the second FBMC waveform component, which is labeled T.
- the first FBMC waveform component and the second FBMC waveform component are the FBMC waveform components implemented by the OQAM scheme.
- a frequency division multi-waveform signal is generated according to an embodiment of the present invention.
- Methods including:
- Example 1 ⁇ sets the overlap coefficient of the prototype filter corresponding to the first FBMC waveform component to 4, and the overlap coefficient of the prototype filter corresponding to the second FBMC waveform component is 2; then, the corresponding sub-waveform of the FBMC waveform component
- the carrier spacing is 4 times the base subcarrier spacing
- the subcarrier spacing corresponding to the second FBMC waveform component is 2 times the base subcarrier spacing
- the time domain symbol interval of the first FBMC waveform component is the time of the second FBMC waveform component.
- the field symbol interval is , the time domain symbol interval of the second FBMC waveform component is the first FBMC
- the time domain symbol interval of the waveform component is 2 times.
- the start time of the time domain symbol of the first FBMC waveform component is: 0, , , ⁇ , - ⁇ , ...;
- the starting time of the time domain symbol is: 0, , - , .... k is a positive integer.
- FIG. 4 2 4 is a schematic diagram showing the relationship between the first FBMC waveform component and the second FBMC waveform component in the frequency domain in the frequency domain as shown in FIG. 3; wherein each basic subcarrier in the basic subcarrier group corresponds to a unique number
- the number of the basic subcarrier corresponding to the first FBMC waveform component is: kl, kl +4, kl +8, kl + 12...
- the number of the basic subcarrier corresponding to the second FBMC waveform component is: k2, k2+2 , k2+4, k2+6
- a schematic diagram of mapping ⁇ and ⁇ ⁇ to the basic subcarrier group in the example 1 is shown.
- FIG. 5 it is a distribution diagram of the start time of the M+N frequency domain symbols obtained according to the example 1 and the corresponding time domain symbols of the single waveform component, wherein the horizontal axis represents the time domain symbol of the single waveform component.
- Starting time It should be noted that the start time of the time domain symbol of each single waveform component in a system is the frequency division multi-waveform time domain symbol in the system. The starting moment of the number.
- the step 202 may be implemented as: performing frequency domain filtering on the to-be-transmitted data stream belonging to the set 1 among the M frequency domain symbols by using a prototype filter with an overlap coefficient of 4, using a prototype with an overlap coefficient of 2
- the filter performs frequency domain filtering on the to-be-transmitted data stream belonging to the set 2 among the N frequency domain symbols.
- the frequency domain filtering process with an example: 4.
- k is an integer
- -R ⁇ i ⁇ R i is an integer.
- the data to be transmitted originally mapped to the kth basic subcarrier is spread to the surrounding 2R+1 basic subcarriers.
- Another common method of frequency domain filtering is to directly convolve the frequency domain response of the prototype filter with the data stream to be transmitted, which will not be described here.
- FIG. 6 is a schematic diagram of a frequency domain symbol obtained by performing frequency domain filtering on two frequency domain symbols based on Example 1; wherein, a start time of a time domain symbol of a single waveform component corresponding to the two frequency domain symbols The same, the starting moment can be 0, , in Figure 5
- frequency domain filtering is performed on a frequency domain symbol based on Example 1.
- L is an integer greater than 1.
- the starting moments of the L frequency division multi-waveform time domain symbols in Example 1 are: 0, ,
- Synthetic data streams [ , ], [ ], [ , b n 2 ],
- the synthesized data stream in the example 1 may be composed of one first to-be-transmitted data stream and one second to-be-sent data stream, or may be composed of only one first to-be-sent data stream.
- FIG. 8 is a schematic diagram of L frequency-division multi-waveform time-domain symbols generated by frequency-filtered M frequency-domain symbols and frequency-domain filtered N frequency-domain symbols obtained according to Example 1;
- the vertical axis represents the starting time of the L frequency division multi-waveform time domain symbols.
- the starting moments of the L frequency-division multi-waveform time domain symbols in Example 1 are: 0, , - get, two adjacent frequency-division multi-waveform time domains
- FIG. 10 it is a schematic diagram of a time domain signal obtained based on Example 1.
- Example 1 the time domain symbol interval of the second FBMC waveform component in Example 1 is exactly an integer multiple of the time domain symbol interval of the first FBMC waveform component, and the time domain symbol interval of the second FBMC waveform component is exemplified by Example 2 below. The case where it is not an integer multiple of the time domain symbol interval of the first FBMC waveform component will be described.
- Example 2 ⁇ Set the second FBMC waveform component corresponding to the prototype filter with an overlap coefficient of 3; then, the second FBMC waveform component corresponds to the subcarrier spacing of 3 times the base subcarrier spacing, and the second FBMC waveform component The field symbol interval is; the second FBMC
- the waveform component corresponds to the base subcarrier number: k2, k2+3, k2+6, k2+9...
- the prototype filter corresponding to the first FBMC waveform component has an overlap coefficient of four.
- the starting time of the time domain symbol of the second FBMC waveform component is: 0, , ,
- the 3 8 2 data streams are: [ , bl ], [ a m 2 ], [ b n 2 ], [ ], [ ], [ ], [ ai , ]. It can be seen that the synthesized data stream in Example 2 may be composed of one first to-be-transmitted data stream and one second to-be-sent data stream, or may be composed of only one first to-be-sent data stream, or may be only one second.
- the data stream to be sent is composed. As shown in FIG. 11, the M+N frequency domain symbols obtained according to the example 2 and the corresponding single waveform components thereof are shown. The distribution of the start time of the time domain symbol.
- FIG. 12 it is a schematic diagram of L frequency division multi-waveform time domain symbols obtained based on Example 2; wherein, the vertical axis represents the starting time of L frequency division multi-wavelength time domain symbols.
- Fig. 13 is a schematic diagram of L frequency division multi-waveform time domain symbols after the shift operation obtained based on the example 2.
- the method for generating a frequency division multi-waveform signal provided by the embodiment of the present invention can use two FBMC waveforms in the same system. Specifically, two FBMC waveforms can be simultaneously implemented by the same transmitter. That is, the method enables a system to support multiple multi-carrier technologies.
- a method for processing a frequency division multi-waveform signal includes:
- the execution subject of this embodiment may be a receiver.
- the method for processing the frequency division multi-waveform signal provided in this embodiment corresponds to the method for generating the frequency division multi-waveform signal provided in the first embodiment/the first embodiment.
- the related content in the embodiment reference may be made to the above.
- the time domain signal is composed of one or more frequency division multi-waveform time domain symbols, and the waveform component involved in one frequency division multi-waveform time domain symbol may be a first waveform component, or a second waveform component, or a first waveform component and a A combination of two waveform components.
- the reception time of any frequency division multi-waveform time domain symbol is the same as the start time of the frequency division multi-wavelength time domain symbol determined by the transmitter.
- the reception times of the L frequency division multi-wavelength time domain symbols are: 0, , -
- each frequency division multi-waveform time domain symbol has the same duration and marks the duration as T.
- the method may further include: receiving, by the transmitting side, the shift operation information of the time domain signal including the first waveform component and the second waveform component; in this case, the step 1401 may include: according to the shifting The operation information determines a reception time of the time domain signal.
- the first waveform component is a first FBMC waveform component
- the second waveform component is a second FBMC waveform component
- step 1402 may include: receiving a time domain signal of length T at each receiving moment. For example, in the above example 2, at time 0, L, ,
- the Fourier transform is performed on the time domain signal to generate a frequency domain signal, wherein the "Fourier transform" in the present text includes various mathematical or physical implementations of the Fourier transform and its variant form.
- the frequency domain filtering operation performed by the receiver is a matched filtering process of frequency domain filtering performed by the transmitting side.
- the frequency domain filtering operation performed by the receiver can also be implemented by convolving the F' and frequency division multi-wavelength frequency domain signals as exemplified in step 202.
- the purpose of the signal detection is to recover the data to be transmitted in the frequency domain-filtered frequency domain signal.
- the specific implementation method reference may be made to the prior art.
- the step 1405 may include: using the prototype filter corresponding to the first FBMC waveform component to the subcarrier corresponding to the first FBMC waveform component Performing frequency domain filtering on the data to obtain M frequency domain symbols corresponding to the first FBMC waveform component; and using the prototype filter corresponding to the second FBMC waveform component to perform frequency domain filtering on the data on the subcarrier corresponding to the second FBMC waveform component, N frequency domain symbols corresponding to the second FBMC waveform component are obtained.
- the method for processing a frequency division multi-waveform signal provided by the embodiment of the present invention corresponds to the method for generating a frequency division multi-waveform signal provided in the first embodiment/the first embodiment, and can use a plurality of waveforms in the same system. Specifically, the method can be utilized. The same transmitter simultaneously implements multiple waveforms. That is, the method enables a system to support multiple multi-carrier techniques.
- a method for generating a frequency division multi-waveform signal includes:
- the execution body of this embodiment may be a transmitting party.
- the embodiment can be applied to frequency domain symbols corresponding to partial waveform components of a plurality of waveform components. Filtered scenes.
- Embodiment 1/Embodiment 1 For an explanation of the related content in this embodiment, reference may be made to Embodiment 1/Embodiment 1.
- the first waveform component is an OFDM waveform component
- the second waveform component is an FBMC waveform component.
- the subcarrier spacing corresponding to the FBMC waveform component is an integer multiple of the subcarrier spacing corresponding to the OFDM waveform component.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are separated by at least rl + r2 - l basic subcarrier spacing; where rl indicates that the subcarrier spacing corresponding to the first waveform component is equivalent to rl basic subcarrier spacing, rl is a positive integer, and r2 indicates that the subcarrier spacing corresponding to the second waveform component is equivalent to r2
- the base subcarrier spacing, r2 is a positive integer.
- the subcarrier spacing corresponding to the OFDM waveform component is 1 basic subcarrier spacing; or, when the second waveform component is a FBMC waveform component, the corresponding component of the FBMC waveform component
- the carrier spacing is r basic subcarrier spacing; r is the overlapping coefficient of the prototype filter corresponding to the FBMC waveform component, and r is a positive integer.
- the second waveform component is a FBMC waveform component.
- the step 1502 may include: using a prototype filter corresponding to the FBMC waveform component to perform a second type of to-be-sent data stream in the N frequency division multi-wavelength frequency domain symbols. Perform frequency domain filtering.
- the step 1503 may include: generating, by the M frequency domain symbols and the frequency domain filtered N frequency domain symbols, a time domain signal formed by L time domain symbols, where the L is smaller than the M And the sum of the N; wherein, if the first type of data stream to be sent The start time of the time domain symbol corresponding to one of the data streams is the same as the start time of the time domain symbol corresponding to one of the second type of data streams to be sent, and the frequency domain corresponding to the two data streams The symbol corresponds to a time domain symbol for the starting time in the L time domain symbols.
- L is a positive integer greater than 1, and the M frequency domain symbols and the frequency domain filtered N frequency domain symbols are used to generate a time domain signal, which may include: i) Performing inverse Fourier transform of the M frequency domain symbols and the frequency domain filtered N frequency domain symbols to generate L time domain symbols; ii), after the L L1 in the L time domain symbols Shifting the time domain symbols such that the time interval between the a-th time-domain symbol and the b-th time-domain symbol in the L time-domain symbols is related to any of the a-th time-domain symbols The time domain symbol interval corresponding to a waveform is equal; wherein the a-th time domain symbol is any one of the L- 1 time domain symbols, and the b-th time domain symbol is the first a a time domain symbol preceding any time domain symbol that is closest to the a-th time domain symbol and includes any waveform involved in the a-th time domain symbol; iii), for the L time domains The first time domain symbol in the symbol and
- the method may further include: transmitting the shift operation information to the receiver; wherein the shift operation information is used to enable the receiver to determine the time of receiving the time domain signal.
- the method for generating a frequency division multi-waveform signal provided by the embodiment of the present invention can use a plurality of waveforms in the same system. Specifically, a plurality of waveforms can be simultaneously realized by the same transmitting side. That is, the method enables a system to support multiple multi-carrier techniques.
- This embodiment is a specific embodiment of the second embodiment.
- the "first waveform component” described above is an OFDM waveform component in the present embodiment; the “second waveform component” described above is an FBMC waveform component in this embodiment.
- the subcarriers corresponding to the FBMC waveform component and the subcarriers corresponding to the OFDM waveform component are different basic subcarriers in the same basic subcarrier group;
- the duration of the time domain symbol of the FBMC waveform component is equal to the duration of the time domain symbol of each OFDM waveform component, and the duration is labeled T.
- the FBMC wave formation is divided into FBMC waveform components implemented by the OQAM scheme.
- a method for generating a frequency division multi-waveform signal includes:
- Each of the M frequency domain symbols is an OFDM frequency domain symbol
- each of the N frequency domain symbols is an FBMC frequency domain symbol.
- Example 3 4: The overlap coefficient of the prototype filter corresponding to the FBMC waveform component is 4, then the subcarrier spacing corresponding to the FBMC waveform component is 4 times the base subcarrier spacing.
- the time domain symbol interval of the FBMC waveform component is , the time domain symbol of the FBMC waveform component
- the starting time is: 0, , , ⁇ , - ⁇ , ...; OFDM waveform components
- the subcarrier spacing is 1 times the base subcarrier spacing
- the time domain symbol interval of the OFDM waveform component is T
- the start time of the time domain symbol of the OFDM waveform component is: 0, , T, ⁇ , -..
- FIG. 17 it is a schematic diagram of the relationship between the FBMC waveform component and the OFDM waveform component in the frequency domain in Example 3; wherein the base subcarriers corresponding to the FBMC waveform component are: kl, kl +4, kl +8, Kl + 12...; The number of the basic subcarriers corresponding to the OFDM waveform components are: k2, k2+ l, k2+2, k2+3, ....
- the M+N frequency domain symbols obtained according to the example 3 correspond to A distribution map of the start time of the time domain symbol of the single waveform component, wherein the horizontal axis represents the start time of the time domain symbol of the single waveform component. It should be noted that the start time of the time domain symbol of each single waveform component in a system is the starting time of each frequency division multi-waveform time domain symbol in the system.
- the embodiment is used to implement the FBMC waveform and the OFDM waveform in the same system.
- the frequency domain filtering of the data stream to be transmitted on the subcarrier corresponding to the OFDM waveform component is not required.
- FIG. 19 is a schematic diagram of an OFDM frequency domain symbol based on Example 3 and a frequency domain filtered FMBC frequency domain symbol; wherein, the start of the time domain symbol of the single waveform component corresponding to the two frequency domain symbols The time is the same, and the starting time can be 0, , T, ... in FIG. As shown in Figure 20, for the example 3 pairs of frequency domain symbols
- the starting times of the L frequency-division multi-waveform time-domain symbols obtained based on Example 3 are: 0, , -;
- L L-frequency multi-wavelength frequency-domain symbols correspond to L
- the synthesized data streams are: [ , b n l ] , [ a m 2 ] , [ a m ] , [ a m 4 ] . [ a m 5 , b n 2 ] .
- the synthesized data stream in the example 3 may be composed of one first to-be-transmitted data stream and one second to-be-sent data stream, or may be composed of only one first to-be-sent data stream.
- FIG. 21 it is the L frequency division multi-waveform time domain symbols obtained based on the example 3. Schematic; wherein, the vertical axis represents the starting time of the L frequency division multi-waveform time domain symbols.
- FIG. 22 it is a schematic diagram of L frequency division multi-wavelength time domain symbols after the shift operation obtained based on the example 3.
- the method for generating a frequency division multi-waveform signal provided by the embodiment of the present invention can use a plurality of waveforms in the same system. Specifically, a plurality of waveforms can be simultaneously realized by the same transmitting side. That is, the method enables a system to support multiple multi-carrier techniques.
- a method for processing a frequency division multi-waveform signal includes:
- 2301 Determine an instant of the time domain signal including the first waveform component and the second waveform component.
- the execution subject of this embodiment may be a receiver.
- the method for processing the frequency division multi-waveform signal provided in this embodiment corresponds to the method for generating the frequency division multi-waveform signal provided in the third embodiment/the second embodiment.
- the related content in the embodiment reference may be made to the above.
- the method may further include: receiving, by the transmitting, the shift operation information of the time domain signal that includes the first waveform component and the second waveform component.
- the step 2301 may include: The shift operation information determines a reception timing of the time domain signal.
- the first waveform component is an OFDM waveform component
- the second waveform component is an FBMC waveform component.
- 2303 Generate the frequency domain signal by using the time domain signal, where the frequency domain signal includes M frequency domain symbols corresponding to the first waveform component.
- 2304 Perform frequency domain filtering on the data on the subcarrier corresponding to the second waveform component in the frequency domain signal to obtain N frequency domain symbols corresponding to the second waveform component.
- the step 2301 may include: performing frequency domain filtering on the data on the subcarrier corresponding to the FBMC waveform component by using a prototype filter corresponding to the FBMC waveform component to obtain the FBMC waveform component. Corresponding N frequency domain symbols.
- the method for processing a frequency division multi-waveform signal provided by the embodiment of the present invention corresponds to the method for generating a frequency division multi-waveform signal provided in Embodiment 3/Embodiment 2, and can use a plurality of waveforms in the same system, and specifically, can utilize The same transmitter simultaneously implements multiple waveforms. That is, the method enables a system to support multiple multi-carrier techniques.
- a transmitting device 24 for performing the method for generating a frequency division multi-waveform signal shown in FIG. 1 is provided.
- the transmitting device 24 includes:
- the mapping unit 24A is configured to map the first type of data stream to be transmitted to the subcarrier corresponding to the first waveform component, generate M frequency domain symbols, and map the second type of data stream to be transmitted to the child corresponding to the second waveform component. Generating N frequency domain symbols on the carrier, where M and the N are positive integers;
- the frequency domain filtering unit 24B is configured to perform frequency domain filtering on the M frequency domain symbols and the N frequency domain symbols;
- the generating unit 24C is configured to generate the time domain signal by using the M frequency domain symbols after the frequency domain filtering and the N frequency domain symbols filtered by the frequency domain.
- the first waveform component is a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component
- the generating unit 24C is specifically configured to: compress the M domain after frequency domain filtering
- the frequency domain symbols and the frequency domain filtered N frequency domain symbols generate a time domain signal composed of L time domain symbols, and the L is less than or equal to a sum of the M and the N;
- the start time of the time domain symbol corresponding to one of the first type of data streams to be sent is the same as the start time of the time domain symbol corresponding to one of the second type of data streams to be sent,
- the frequency domain symbols corresponding to the two data streams correspond to the time domain symbols of the L time domain symbols for the starting time.
- L is a positive integer greater than 1, and the generating unit 24C is specifically configured to: perform the frequency domain filtered M frequency domain symbols and the frequency domain filtered N frequency domain symbols by Inverse transformation of leaves, generating L time domain symbols;
- the subcarrier spacing corresponding to the first waveform component is different from the subcarrier spacing corresponding to the second waveform.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are separated by at least rl+r2-l basic subcarrier spacing; wherein, the rl represents the first
- the subcarrier spacing corresponding to the waveform component corresponds to rl basic subcarrier spacings, and rl is a positive integer.
- the r2 indicates that the subcarrier spacing corresponding to the second waveform component corresponds to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is a first filter group multi-carrier FBMC waveform component, and the sub-carrier spacing corresponding to the first FBMC waveform component is r basic sub-carrier spacing; the r is the first The overlap coefficient of the prototype filter corresponding to the FBMC waveform component, r is a positive integer.
- the transmitter device 24 may further include: a sending unit 24D, configured to send the shift operation information to the receiver.
- a sending unit 24D configured to send the shift operation information to the receiver.
- the transmitting device provided by the embodiment of the present invention can use multiple waveforms in the same system. Specifically, multiple waveforms can be simultaneously implemented by using the same transmitting device. In other words, it enables a system to support multiple multi-carrier technologies.
- the sending unit in the foregoing Embodiment 5 may be a transmitter; the mapping unit, the frequency domain filtering unit, and the generating unit may be embedded in the hardware or in the processor of the transmitting device, or may be in software.
- the form is stored in the memory of the transmitting device, so that the processor calls to perform the operations corresponding to the above respective units.
- a transmitting device 26 is provided for performing the method for generating a frequency division multi-waveform signal shown in FIG. 1 according to an embodiment of the present invention; the transmitting device 26 includes: a memory 26A, a processor 26B, and Bus system 26C, wherein
- the memory 26A is for storing a set of codes; the code is used to control the processor 26B to perform the following actions:
- the time domain signals are generated by the N frequency domain symbols after the frequency domain filtering.
- the bus system 26C is used to couple the various components of the transmitter device 26, wherein the bus system 26C includes a power bus and control in addition to the data bus. Line and status signal bus. However, for the sake of clarity, various buses are labeled as bus system 26C in the figure.
- memory 26A may include read only memory and random access memory, and a portion of memory 26A may also include non-volatile random access memory (NVRAM).
- the processor 26B can be a central processing unit (CPU), a microprocessor, a microcontroller, or the like.
- the transmitting device 26 may be embedded or may itself be a base station or access point or user equipment in the communication network.
- the first waveform component is a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component
- the processor 26B is specifically configured to generate the time domain of the L time domain symbols by using the frequency domain filtered M frequency domain symbols and the frequency domain filtered N frequency domain symbols.
- a signal the L is less than or equal to a sum of the M and the N; wherein, if a start time of a time domain symbol corresponding to a data stream in the first type of data stream to be transmitted is If the start time of the time domain symbol corresponding to one data stream in the data stream to be transmitted is the same, the frequency domain symbol corresponding to the two data streams and the time domain symbol for the start time in the L time domain symbols correspond.
- L is a positive integer greater than 1, and the processor 26B is specifically configured to: perform the frequency domain filtering of the M frequency domain symbols and the frequency domain filtered N frequency domain symbols by Inverse transformation of leaves, generating L time domain symbols;
- the first time domain symbol in the L time domain symbols and the described after the shift operation The L-l time domain symbols are superimposed to generate a time domain signal.
- the subcarrier spacing corresponding to the first waveform component is different from the subcarrier spacing corresponding to the second waveform.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are separated by at least rl+r2-l basic subcarrier spacing; wherein, the rl represents the first
- the subcarrier spacing corresponding to the waveform component corresponds to rl basic subcarrier spacings, and rl is a positive integer.
- the r2 indicates that the subcarrier spacing corresponding to the second waveform component corresponds to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is a first filter group multi-carrier FBMC waveform component, and the sub-carrier spacing corresponding to the first FBMC waveform component is r basic sub-carrier spacing; the r is the first The overlap coefficient of the prototype filter corresponding to the FBMC waveform component, r is a positive integer.
- the transmitter device 26 may further include: a transmitter 26D, configured to send the shift operation information to the receiver.
- the transmitting device provided by the embodiment of the present invention can use multiple waveforms in the same system. Specifically, multiple waveforms can be simultaneously implemented by using the same transmitting device. In other words, it enables a system to support multiple multi-carrier technologies.
- a receiver device 28 for performing the method for processing a frequency division multi-waveform signal shown in FIG. 14 according to an embodiment of the present invention.
- the receiver device 28 includes:
- a determining unit 28A configured to determine a receiving moment of the time domain signal including the first waveform component and the second waveform component
- the receiving unit 28B is configured to receive the time domain signal according to the receiving moment; and the generating unit 28C is configured to generate the frequency domain signal by using the time domain signal;
- the frequency domain filtering unit 28D is configured to perform frequency domain filtering on the data on each subcarrier in the frequency domain signal to obtain M frequency domain symbols corresponding to the first waveform component and corresponding to the second waveform component. N frequency domain symbols, the M and the N are both positive integers;
- the signal detecting unit 28E is configured to perform signal detection on the M frequency domain symbols and the N frequency domain symbols to obtain the time domain The information carried by the signal.
- the first waveform component is a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component
- the frequency domain filtering unit 28D is specifically configured to:
- the receiving unit 28B is further configured to: receive, by the transmitting, the shift operation information of the time domain signal that includes the first waveform component and the second waveform component;
- the determining unit 28A is specifically configured to determine, according to the shift operation information, a receiving moment of the time domain signal.
- the receiver device provided by the embodiment of the present invention corresponding to the transmitter device provided in Embodiment 5/Embodiment 6, can use multiple waveforms in the same system. Specifically, multiple waveforms can be simultaneously implemented by using the same transmitter device. . That is to say, one system can support multiple multi-carrier technologies.
- the receiving unit in the foregoing Embodiment 7 may be a receiver; the determining unit, the generating unit, the frequency domain filtering unit, and the signal detecting unit may be embedded in hardware or in a processor independent of the receiving device. It can also be stored in the memory of the receiver device in software, so that the processor can call to execute the above corresponding units. Operation.
- a receiver device 29 for performing the method for processing a frequency division multi-waveform signal shown in FIG. 14 according to an embodiment of the present invention; the receiver device 29 includes:
- the memory 29A, the processor 29B, the bus system 29C, and the receiver 29D wherein the memory 29A is configured to store a set of codes; the code is used to control the processor 29B to determine to include the first waveform component and the second waveform component The time of receipt of the time domain signal;
- the receiver 29D is configured to receive the time domain signal according to the receiving moment; the code is used to control the processor 29B to perform the following actions:
- bus system 29C and the memory 29A can be referred to the above embodiment 6.
- the first waveform component is a first filter bank multi-carrier FBMC waveform component
- the second waveform component is a second FBMC waveform component
- processor 29B is specifically configured to:
- the receiver 29D is further configured to: receive, by the transmitter, the shift operation information of the time domain signal that includes the first waveform component and the second waveform component; the processor 29B is specifically configured to: according to the shift The operation information determines a reception time of the time domain signal.
- the receiver device provided by the embodiment of the present invention corresponding to the transmitter device provided in Embodiment 5/Embodiment 6, can use multiple waveforms in the same system. Specifically, multiple waveforms can be simultaneously implemented by using the same transmitter device. . That is to say, one system can support multiple multi-carrier technologies.
- a transmitting device 30 is provided for performing the method for generating a frequency division multi-waveform signal as shown in FIG. 16, and the transmitting device 23 includes:
- the mapping unit 30A is configured to map the first type of data stream to be transmitted to the subcarrier corresponding to the first waveform component, generate M frequency domain symbols, and map the second type of data stream to be transmitted to the child corresponding to the second waveform component. Generating N frequency domain symbols on the carrier, where M and the N are positive integers;
- a frequency domain filtering unit 30B configured to perform frequency domain filtering on the N frequency domain symbols
- a generating unit 30C configured to generate the M frequency domain symbols and the frequency domain filtered N frequency domain symbols Domain signal.
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the second waveform component is a filter bank multi-carrier FBMC waveform component.
- the subcarrier spacing corresponding to the FBMC waveform component is an integer multiple of a subcarrier spacing corresponding to the OFDM waveform component.
- the generating unit 30C is configured to generate, by using the M frequency domain symbols and the frequency domain filtered N frequency domain symbols, time domain signals formed by L time domain symbols, where the L And less than the sum of the M and the N; wherein, if the start time of the time domain symbol corresponding to one data stream in the first type of data stream to be sent is the same as the one of the second type of data stream to be sent If the start time of the time domain symbol corresponding to the data stream is the same, then the The frequency domain symbols corresponding to the two data streams correspond to the time domain symbols for the start time in the L time domain symbols.
- L is a positive integer greater than 1, and the generating unit 30C is specifically configured to: perform inverse Fourier transform on the M frequency domain symbols and the frequency domain filtered N frequency domain symbols to generate L time domain symbols;
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are separated by at least rl+r2-l basic subcarrier spacing; wherein, the rl represents the first
- the subcarrier spacing corresponding to the waveform component corresponds to rl basic subcarrier spacings, and rl is a positive integer.
- the r2 indicates that the subcarrier spacing corresponding to the second waveform component corresponds to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component, and the subcarrier spacing corresponding to the OFDM waveform component is 1 basic subcarrier spacing; or the second waveform component is a filter.
- the multi-carrier FBMC waveform component, the sub-carrier spacing corresponding to the FBMC waveform component is r basic sub-carrier spacing; the r is an overlap coefficient of the prototype filter corresponding to the FBMC waveform component, and r is a positive integer.
- the transmitter device 30 may further include:
- the sending unit 30D is configured to send the shift operation information to the receiver.
- the transmitting device provided by the embodiment of the present invention can use multiple waveforms in the same system. Specifically, multiple waveforms can be simultaneously implemented by using the same transmitting device. In other words, it enables a system to support multiple multi-carrier technologies.
- the sending unit in the foregoing Embodiment 9 may be a transmitter; the mapping unit, the frequency domain filtering unit, and the generating unit may be embedded in the hardware or in the processor of the transmitting device, or may be in software.
- the form is stored in the memory of the transmitting device, so that the processor calls to perform the operations corresponding to the above respective units.
- a transmitting device 32 for performing the method for generating a frequency division multi-waveform signal as shown in FIG. 16 according to an embodiment of the present invention; the transmitting device 32 includes:
- the memory 32A is for storing a set of codes; the code is used to control the processor 32B to perform the following actions:
- bus system 32C and the memory 32A can be referred to the above embodiment 6.
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the second waveform component is a filter bank multi-carrier FBMC waveform component.
- the subcarrier spacing corresponding to the FBMC waveform component is an integer multiple of a subcarrier spacing corresponding to the OFDM waveform component.
- the processor 32B is configured to generate, by using the M frequency domain symbols and the frequency domain filtered N frequency domain symbols, a time domain signal formed by L time domain symbols, where the L And less than the sum of the M and the N; wherein, if the start time of the time domain symbol corresponding to one data stream in the first type of data stream to be sent is the same as the one of the second type of data stream to be sent The start time of the time domain symbol corresponding to the data stream is the same, and the frequency domain symbol corresponding to the two data streams corresponds to the time domain symbol for the start time in the L time domain symbols.
- the processor 32B is specifically configured to:
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are different basic subcarriers in the same basic subcarrier group.
- the subcarrier corresponding to the first waveform component and the subcarrier corresponding to the second waveform component are separated by at least rl+r2-l basic subcarrier spacing; wherein, the rl represents the first
- the subcarrier spacing corresponding to the waveform component corresponds to rl basic subcarrier spacings, and rl is a positive integer.
- the r2 indicates that the subcarrier spacing corresponding to the second waveform component corresponds to r2 basic subcarrier spacings, and r2 is a positive integer.
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the subcarrier spacing corresponding to the OFDM waveform component is 1 basic subcarrier spacing
- the second waveform component is a filter bank multicarrier FBMC waveform component, and the subcarrier spacing corresponding to the FBMC waveform component is r basis Subcarrier spacing
- the r is an overlap coefficient of a prototype filter corresponding to the FBMC waveform component
- r is a positive integer.
- the transmitter device 32 may further include:
- the transmitter 32D is configured to send the shift operation information to the receiver.
- the transmitting device provided by the embodiment of the present invention can use multiple waveforms in the same system. Specifically, multiple waveforms can be simultaneously implemented by using the same transmitting device. In other words, it enables a system to support multiple multi-carrier technologies.
- a receiver device 34 for performing the method for processing a frequency division multi-waveform signal as shown in FIG. 23, and the receiver device 34 includes:
- a determining unit 34A configured to determine a receiving moment of the time domain signal including the first waveform component and the second waveform component
- the receiving unit 34B is configured to receive the time domain signal according to the receiving time;
- the generating unit 34C is configured to generate the frequency domain signal by using the time domain signal, where the frequency domain signal includes the M corresponding to the first waveform component Frequency domain symbols;
- the frequency domain filtering unit 34D is configured to perform frequency domain filtering on the data on the subcarrier corresponding to the second waveform component in the frequency domain signal to obtain N frequency domain symbols corresponding to the second waveform component;
- the signal detecting unit 34E is configured to perform signal detection on the M frequency domain symbols and the frequency domain filtered N frequency domain symbols to obtain information carried by the time domain signal.
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the second waveform component is a filter bank multi-carrier FBMC waveform component.
- the receiving unit 34B is further configured to: receive, by the transmitting, the shift operation information of the time domain signal that includes the first waveform component and the second waveform component;
- the determining unit 34A is specifically configured to determine, according to the shift operation information, a receiving moment of the time domain signal.
- the receiver device provided by the embodiment of the present invention can use multiple waveforms in the same system. Specifically, multiple waveforms can be simultaneously implemented by using the same transmitter device. . That is to say, one system can support multiple multi-carrier technologies.
- the receiving unit in the above eleventh embodiment may be a receiver; the determining unit, the generating unit, the frequency domain filtering unit, and the signal detecting unit may be embedded in the hardware form or independent of the processor of the transmitting device. , can also be stored in the memory of the transmitting device in software, so that the processor calls to perform the operations corresponding to the above units.
- a method for processing a frequency division multi-waveform signal shown in FIG. 23 is performed by a receiver device 35 according to an embodiment of the present invention.
- the receiver device 35 includes: a memory 35A, a processor 35B, and a bus. a system 35C and a receiver 35D, wherein the memory 35A is configured to store a set of codes; the code is configured to control the processor 35B to determine a reception time of a time domain signal including the first waveform component and the second waveform component;
- the receiver 35D is configured to receive the time domain signal according to the receiving moment; the code is further configured to control the processor 35B to perform the following actions:
- the first waveform component is an orthogonal frequency division multiplexing OFDM waveform component
- the second waveform component is a filter bank multi-carrier FBMC waveform component.
- the receiver 35D is further configured to: receive, by the transmitter, the shift operation information of the time domain signal that includes the first waveform component and the second waveform component; the processor 35B is specifically configured to: according to the shift The operation information determines a reception time of the time domain signal.
- the receiver device provided by the embodiment of the present invention can use multiple waveforms in the same system. Specifically, multiple waveforms can be simultaneously implemented by using the same transmitter device. . That is to say, one system can support multiple multi-carrier technologies.
- the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.
- the disclosed system, apparatus, and method may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
- the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
- the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
- the software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or an optical disk, and the like, which can store program codes.
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Priority Applications (7)
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JP2017510300A JP2017530611A (ja) | 2014-08-21 | 2014-08-21 | 周波数分割マルチ波形信号を生成及び処理する方法、並びに装置 |
BR112017003370A BR112017003370A2 (pt) | 2014-08-21 | 2014-08-21 | método para gerar um sinal de multi forma de onda de divisão de frequência, e aparelho |
KR1020177007438A KR20170042771A (ko) | 2014-08-21 | 2014-08-21 | 주파수 분할 다중 파형 신호를 생성하고 처리하는 방법 및 장치 |
EP14899992.3A EP3174258A4 (en) | 2014-08-21 | 2014-08-21 | Method and apparatus for generating and processing frequency division multiple waveform signal |
CN201480052742.7A CN105594174A (zh) | 2014-08-21 | 2014-08-21 | 一种生成、处理频分多波形信号的方法和装置 |
PCT/CN2014/084902 WO2016026115A1 (zh) | 2014-08-21 | 2014-08-21 | 一种生成、处理频分多波形信号的方法和装置 |
US15/438,512 US20170163456A1 (en) | 2014-08-21 | 2017-02-21 | Methods for generating and processing frequency division multi-waveform signal, and apparatuses |
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EP (1) | EP3174258A4 (zh) |
JP (1) | JP2017530611A (zh) |
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CN (1) | CN105594174A (zh) |
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CN107438041A (zh) * | 2016-05-27 | 2017-12-05 | 华为技术有限公司 | 一种发送信号和接收信号的方法及装置 |
CN108737306A (zh) * | 2017-04-14 | 2018-11-02 | 上海诺基亚贝尔股份有限公司 | 基于频分复用的通信 |
CN109479276A (zh) * | 2016-08-12 | 2019-03-15 | 摩托罗拉移动有限责任公司 | 定义资源分配的性质的参数 |
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FR3032321A1 (fr) * | 2015-01-30 | 2016-08-05 | Orange | Procede et dispositif de modulation de symboles complexes, procede et dispositif de demodulation et programmes d'ordinateur correspondants. |
US10602507B2 (en) | 2016-09-29 | 2020-03-24 | At&T Intellectual Property I, L.P. | Facilitating uplink communication waveform selection |
US10158555B2 (en) | 2016-09-29 | 2018-12-18 | At&T Intellectual Property I, L.P. | Facilitation of route optimization for a 5G network or other next generation network |
US10171214B2 (en) | 2016-09-29 | 2019-01-01 | At&T Intellectual Property I, L.P. | Channel state information framework design for 5G multiple input multiple output transmissions |
US10206232B2 (en) | 2016-09-29 | 2019-02-12 | At&T Intellectual Property I, L.P. | Initial access and radio resource management for integrated access and backhaul (IAB) wireless networks |
US10644924B2 (en) | 2016-09-29 | 2020-05-05 | At&T Intellectual Property I, L.P. | Facilitating a two-stage downlink control channel in a wireless communication system |
US10355813B2 (en) | 2017-02-14 | 2019-07-16 | At&T Intellectual Property I, L.P. | Link adaptation on downlink control channel in a wireless communications system |
CN111148238B (zh) * | 2018-11-03 | 2023-03-17 | 上海朗帛通信技术有限公司 | 一种被用于无线通信的节点中的方法和装置 |
US11716711B2 (en) | 2021-03-11 | 2023-08-01 | Qualcomm Incorporated | Time domain resource allocation for a time domain waveform |
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- 2014-08-21 JP JP2017510300A patent/JP2017530611A/ja not_active Withdrawn
- 2014-08-21 EP EP14899992.3A patent/EP3174258A4/en not_active Withdrawn
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Also Published As
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EP3174258A1 (en) | 2017-05-31 |
KR20170042771A (ko) | 2017-04-19 |
CN105594174A (zh) | 2016-05-18 |
JP2017530611A (ja) | 2017-10-12 |
BR112017003370A2 (pt) | 2017-11-28 |
US20170163456A1 (en) | 2017-06-08 |
EP3174258A4 (en) | 2017-08-23 |
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