WO2020135098A1 - Procédé de communication, dispositif de réseau et dispositif terminal - Google Patents

Procédé de communication, dispositif de réseau et dispositif terminal Download PDF

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Publication number
WO2020135098A1
WO2020135098A1 PCT/CN2019/125084 CN2019125084W WO2020135098A1 WO 2020135098 A1 WO2020135098 A1 WO 2020135098A1 CN 2019125084 W CN2019125084 W CN 2019125084W WO 2020135098 A1 WO2020135098 A1 WO 2020135098A1
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WIPO (PCT)
Prior art keywords
control information
single carrier
carrier symbol
terminal device
information
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Ceased
Application number
PCT/CN2019/125084
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English (en)
Chinese (zh)
Inventor
陈磊
刘凤威
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
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Publication of WO2020135098A1 publication Critical patent/WO2020135098A1/fr
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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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection

Definitions

  • This application relates to the field of communication technology, and more specifically, to a communication method, a network device, and a terminal device.
  • beam-based communication can be used between network equipment and terminal equipment.
  • the network device can use different beams to communicate with different terminal devices.
  • the network device can only serve multiple terminal devices located in the same beam at the same time.
  • one beam of a network device may only be able to serve one terminal device.
  • the entire bandwidth should be allocated to the terminal device.
  • the terminal device occupies all frequency domain resources, the time domain resources exclusively occupied by the terminal device are generally limited. Therefore, it is suitable to schedule the terminal equipment in a time division scheduling manner.
  • the network device can send control information to different terminal devices.
  • the beams of different terminal devices may be different. Therefore, the network device may use different beams to send two adjacent single carrier symbols.
  • the stability of the information transmitted during the beam switching process is not very good. Therefore, how to reduce the impact of beam switching on the stability of useful information is an urgent problem to be solved.
  • an embodiment of the present application provides a communication method.
  • the method includes: a network device determines a guard time unit and a single carrier symbol, where the single carrier symbol includes a target control information unit, and the target control information unit includes a target terminal Target control information of the device, the single carrier symbol includes N control information units, the guard time unit is located before the single carrier symbol and is adjacent to the single carrier symbol, the N control information units include the target control information unit, N Is a positive integer greater than or equal to 1; the network device sends the guard time unit and the single carrier symbol to the target terminal device.
  • the above technical solution is provided with a guard time unit before the single carrier symbol, which can reduce the inter-symbol interference generated by the multipath channel and the harmful effects on the useful data caused by the radio frequency switch switching when the beam switching occurs.
  • each of the M control information units of the N control information units includes the first protection Information and first control information, where M is a positive integer greater than or equal to 2 and less than or equal to N; the first protection information is adjacent to the first control information, and the first protection information is located after the first control information .
  • the length of the protection time unit is the same as the length of the first protection information.
  • the first protection information included in any two of the M control information units in the control information unit is the same. Since the first protection information in different control information units is the same, this can reduce the number of times the network device determines the protection information, which can reduce the burden on the network device.
  • two beams respectively used to transmit two adjacent control information units of the M control information units are different.
  • the above technical solution can make the network device use different beams to send two consecutive single carrier symbols.
  • the method further includes: the network device sends first protection information indication information to the target terminal device, where the first protection information indication information is used to indicate that the single carrier symbol includes The first protection information.
  • the target terminal device can facilitate blind detection of the single carrier symbol.
  • the method further includes: the network device sends second protection information indication information to the target terminal device, where the second protection information indication information is used to indicate that the single carrier symbol is not Includes first protection information.
  • the target terminal device can facilitate blind detection of the single carrier symbol.
  • the network device determining the guard time unit and the single carrier symbol includes: the network device acquiring N initial control data , The N initial control data correspond to the N control information units in one-to-one correspondence; the network device arranges the N initial control data in a sequential order, and sequentially performs the discrete Fourier transform DFT processing and discrete Fourier inverse order on the arranged data Transform IFFT processing to obtain the single carrier symbol; the network device determines the guard time unit and adds the guard time unit before the single carrier symbol.
  • the network device determining the guard time unit and the single carrier symbol includes: the network device acquiring N initial control data , The N initial control data and the N control information units are in one-to-one correspondence; the network device sequentially performs discrete Fourier transform DFT processing and inverse discrete Fourier transform IFFT processing on the N initial control data, respectively, to obtain the single carrier symbol; The network device determines the guard time unit and adds the guard time unit before the single carrier symbol.
  • an embodiment of the present application provides a communication method.
  • the method includes: a terminal device receives a guard time unit and a single carrier symbol sent by a network device, where the single carrier symbol includes a target control information unit, and the target control information unit Includes target control information, the single carrier symbol includes N control information units, the guard time unit is located before the single carrier symbol and is adjacent to the single carrier symbol, the N control information units include the target control information unit, N Is a positive integer greater than or equal to 1; the terminal device performs blind detection on the single carrier symbol to obtain the target control information.
  • a guard time unit before the single carrier symbol which can reduce the inter-symbol interference generated by the multipath channel and the harmful effects on the useful data caused by the radio frequency switch switching when the beam switching occurs.
  • each of the M control information units of the N control information units includes the first protection Information and first control information, where M is a positive integer greater than or equal to 2 and less than or equal to N; the first protection information is adjacent to the first control information, and the first protection information is located after the first control information .
  • the length of the protection time is the same as the length of the first protection information.
  • the first protection information included in any two of the M control information units in the control information unit is the same.
  • the method further includes: the terminal device receives first protection information indication information sent by the network device, and the first protection information indication information is used to indicate the target control information unit Including first protection information; the terminal device performs blind detection on the single carrier symbol to obtain the target control information, including: the terminal device performs blind detection on the single carrier symbol according to the first protection information indication information to obtain the target Control information.
  • the terminal device may assume that the first protection information is included in the target control information unit to perform blind detection on the single carrier symbol. This can increase the blind detection efficiency of the terminal device.
  • the method further includes: the terminal device receives second protection information indication information sent by the network device, and the second protection information indication information is used to indicate the target control information unit Does not include the first protection information; the terminal device performs blind detection on the single carrier symbol to obtain the target control information, including: the terminal device performs blind detection on the single carrier symbol according to the second protection information indication information to obtain the Target control information.
  • the terminal device may perform blind detection on the single carrier symbol on the assumption that the target control information unit does not include the first protection information. This can improve the blind detection efficiency of the terminal device.
  • an embodiment of the present application provides a network device, where the network device includes a module for implementing the first aspect or any possible implementation manner of the first aspect.
  • a terminal device includes a module for implementing the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a communication device including a module for performing the first aspect or any possible implementation manner of the first aspect.
  • the communication device of the fifth aspect may be a network device, or may be a component (such as a chip or a circuit) that can be used in the network device.
  • an embodiment of the present application provides a communication device including a module for performing the second aspect or any possible implementation manner of the second aspect.
  • the communication apparatus of the sixth aspect may be a terminal device, or may be a component (such as a chip or a circuit) that can be used for the terminal device.
  • an embodiment of the present application provides a storage medium that stores instructions for implementing the method described in the first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a storage medium that stores instructions for implementing the method described in the second aspect or any possible implementation manner of the second aspect.
  • the present application provides a computer program product containing instructions that, when the computer program product runs on a computer, causes the computer to execute the foregoing first aspect or any possible implementation manner of the first aspect method.
  • the present application provides a computer program product containing instructions, which, when the computer program product runs on a computer, causes the computer to execute the foregoing second aspect or any possible implementation manner of the second aspect method.
  • FIG. 1 is a schematic diagram of a system 100 that can apply the communication method according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • Fig. 3 is a schematic diagram of a protection information unit and a single carrier symbol.
  • FIG. 4 is a schematic diagram of another protection information unit and a single carrier symbol.
  • 5 is a schematic diagram of a single carrier symbol.
  • FIG. 6 is a schematic diagram of a single carrier symbol.
  • 7 is a schematic diagram of five single carrier symbols.
  • FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 10 is a structural block diagram of a network device according to an embodiment of the present invention.
  • FIG. 11 is a structural block diagram of a terminal device according to an embodiment of the present invention.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the relationship of the related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the related object is a “or” relationship.
  • “At least one of the following” or similar expressions refers to any combination of these items, including any combination of single items or plural items.
  • At least one (a) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c may be single or multiple.
  • the words "first” and “second” do not limit the number and the execution order.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • general packet radio service general packet radio service, GPRS
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • TDD time division duplex
  • UMTS universal mobile communication system
  • WiMAX worldwide interoperability for microwave access
  • the terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, relay station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user Agent or user device.
  • Terminal devices can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, PDAs), and wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or public land mobile communication networks (PLMN) in the future evolution
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • the terminal device and the like are not limited in this embodiment of the present application.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system for mobile (GSM) system or code division multiple access (CDMA)
  • GSM global system for mobile
  • CDMA code division multiple access
  • the network equipment (base transceiver station, BTS) in a network can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station in an LTE system ( evolved NodeB, eNB or eNodeB), or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, in-vehicle device, wearable device, and
  • the network equipment in the future 5G network or the network equipment in the future evolved PLMN network, etc. are not limited in the embodiments of the present application.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), memory management unit (MMU), and memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processes through processes, for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the present application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the present application, as long as it can run the program that records the code of the method provided by the embodiments of the present application to provide according to the embodiments of the present application
  • the method may be used for communication.
  • the execution body of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.
  • the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • the computer-readable medium may include, but is not limited to: magnetic storage devices (for example, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (for example, compact discs (CD), digital universal discs (digital discs, DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable storage medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • FIG. 1 is a schematic diagram of a system 100 that can apply the communication method according to an embodiment of the present application.
  • the system 100 includes a network device 102, and the network device 102 may include one antenna or multiple antennas.
  • the network device 102 may additionally include a transmitter chain and a receiver chain.
  • both the transmitter chain and the receiver chain can include multiple components related to signal transmission and reception (for example, a processor, modulator, multiplexer, demodulator, demultiplexer, or Antenna, etc.).
  • the network device 102 can communicate with terminal devices (eg, terminal device 116 and terminal device 122 shown in FIG. 1 ). However, it can be understood that the network device 102 can communicate with any number of terminal devices similar to the terminal device 116 or the terminal device 122.
  • the terminal devices 116 and 122 may be various devices that communicate with the network device 102, for example, the terminal device 116 may be a cellular phone, smart phone, portable computer, handheld communication device, handheld computing device, satellite radio, global positioning system, PDA And/or any other suitable device for communicating on the wireless communication system 100.
  • the terminal device 116 communicates with the antennas 112 and 114.
  • the antennas 112 and 114 transmit information to the terminal device 116 through the forward link (also called downlink) 118 and receive information from the terminal device 116 through the reverse link (also called uplink) 120.
  • the terminal device 122 communicates with the antennas 104 and 106.
  • the antennas 104 and 106 send information to the terminal device 122 through the forward link 124 and receive information from the terminal device 122 through the reverse link 126.
  • forward link 118 may use a different frequency band from reverse link 120
  • forward link 124 may use a different frequency band from reverse link 126.
  • the forward link 118 and the reverse link 120 may use a common frequency band
  • the forward link 124 and the reverse link Link 126 may use a common frequency band.
  • Each antenna (or an antenna group consisting of multiple antennas) and/or area designed for communication is called a sector of the network device 102.
  • the antenna group may be designed to communicate with terminal devices in sectors in the coverage area of the network device 102.
  • the network device can transmit signals to all terminal devices in its corresponding sector through a single antenna or multiple antenna transmit diversity.
  • the transmit antenna of the network device 102 may also use beamforming to improve the signal-to-noise ratio of the forward links 118 and 124.
  • the network device 102 uses beamforming to transmit signals to randomly distributed terminal devices 116 and 122 in the relevant coverage area, compared to the way that the network device sends signals to all its terminal devices through single antenna or multi-antenna transmit diversity, Mobile devices in neighboring cells will experience less interference.
  • the network device 102, the terminal device 116, or the terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
  • the wireless communication transmitting device may encode the data for transmission.
  • the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in a memory, etc.) a certain number of data bits to be transmitted to the wireless communication receiving device through the channel.
  • Such data bits may be contained in a transport block (or multiple transport blocks) of data, which may be segmented to produce multiple code blocks.
  • the communication system 100 may be a PLMN network, a D2D network, an M2M network, an IoT network, or other networks.
  • FIG. 1 is only a simplified schematic diagram of an example, and the network may also include other network devices, which are not shown in FIG. 1.
  • FIG. 1 is only a simple schematic diagram used to explain the scenario to which the communication method provided in the embodiments of the present application is applicable, and does not constitute any limitation to the present application.
  • the downlink (DL) in the frequency band below 52.6 GHz adopts orthogonal frequency division multiplexing (OFDM) waveform;
  • the uplink (uplink, UL) uses OFDM and discrete Fourier transform to expand orthogonal frequency division multiplexing (DFT spread OFDM, DFT-s-OFDM) two waveforms, where DFT refers to discrete Fourier transform (discrete fourier transformation (DFT) .
  • DFT discrete Fourier transform
  • the above-mentioned OFDM waveform has the advantages of flexible frequency division multiplexing, good compatibility with multiple input multiple output (MIMO) technology, and good link performance under frequency selective channels.
  • MIMO multiple input multiple output
  • the OFDM waveform has a large peak-to-average power ratio (PAPR) and needs to work in the linear interval of the power amplifier.
  • PAPR peak-to-average power ratio
  • the frequency selective channel refers to the frequency selective channel.
  • the frequency selective channel refers to a multipath channel, and the reciprocal of its delay spread is not much larger than the expected signal bandwidth.
  • the frequency response of this channel is uneven in the frequency band used.
  • the OFDM symbol is formed by the superposition of multiple independently modulated sub-carrier signals, resulting in a large PAPR.
  • the transmitter For the peak-to-average ratio signal, the transmitter needs to use a larger power amplifier fallback value, so that the signal is located in the linear working area of the power amplifier, to avoid excessive signal distortion.
  • the above DFT-s-OFDM waveform has good compatibility with the OFDM waveform, and the PAPR of the DFT-s-OFDM waveform is significantly lower than that of the above OFDM waveform.
  • the DFT-s-OFDM waveform can achieve greater output power than the OFDM waveform. Therefore, the DFT-s-OFDM waveform can be used to improve uplink coverage. However, DFT-s-OFDM waveforms perform worse than OFDM under frequency-selective channels.
  • the frequency band above 52.6GHz In the frequency band above 52.6GHz, the performance of the power amplifier is worse, and the output power is lower. Therefore, the necessity of selecting a low PAPR waveform is stronger.
  • the frequency band above 52.6 GHz may also be called a high frequency band.
  • the narrower beam is used, so the frequency selectivity of the channel is weaker. As a result, the performance advantage of the OFDM waveform is reduced.
  • DFT-s-OFDM waveform may be more widely used.
  • the rest of the single carrier waveform may also be used in the frequency band above 52.6GHz.
  • special word discrete Fourier transform spread orthogonal frequency division multiplexing (unique word-DFT-s-OFDM, UW-DFT-s-OFDM) waveform
  • zero-tail discrete Fourier transform spread orthogonal frequency division multiplexing Zero tail-DFT-s-OFDM, ZT-DFT-s-OFDM waveform
  • single-carrier quadrature amplitude modulation Single-carrier quadrature amplitude modulation (Single-carrier-QAM, SC-QAM) waveform, etc.
  • QAM quadrature amplitude modulation
  • quadrature amplitude modulation quadrature amplitude modulation
  • the single carrier waveform involved may be one or more of the above single carrier waveforms, or may be other types of single carrier waveforms. This application does not limit this.
  • beam-based communication is generally adopted between high-band network equipment and terminal equipment.
  • the network device can only serve multiple terminal devices within the same beam coverage at the same time.
  • the beam is narrow and the number of terminal devices is small, a single beam of the network device may only serve one terminal device.
  • the network device should allocate the full bandwidth to the terminal device. Since this terminal device occupies all frequency domain resources, the time domain resources it occupies are generally limited. That is, the terminal equipment is suitable for time division scheduling.
  • Beam is a communication resource.
  • the beam may be a wide beam, or a narrow beam, or other types of beams.
  • the technique of forming a beam may be a beamforming technique, or other technical means.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology. Different beams can be considered as different resources. The same information or different information can be sent through different beams.
  • multiple beams with the same or similar communication characteristics can be regarded as one beam.
  • One or more antenna ports can be included in a beam to transmit data channels, control channels, and sounding signals.
  • the transmission beam may refer to the distribution of signal strength formed in different directions in space after the signal is transmitted through the antenna.
  • the receiving beam may refer to that the antenna array strengthens or weakens the distribution of wireless signals in different directions in space.
  • one or more antenna ports forming a beam can also be regarded as a set of antenna ports.
  • the beam can be reflected through the antenna port quasi co-location (QCL) relationship, where QCL refers to quasi co-location (QCL).
  • the signals of the two co-beams have a QCL relationship with respect to spatial receive parameters (spatial Rx parameters). That is, the QCL-Type D: ⁇ Spatial Rx parameter ⁇ in the existing protocol.
  • the identification of the beam in the protocol may be the identification of various signals.
  • the beam identification may be a channel state indication reference signal (channel-state indication-reference signal, CSI-RS) resource identification (identify, ID); the beam identification may also be a synchronization signal/physical broadcast channel (synchronization signal/physical broadcast channel) , SS/PBCH) time-domain index; the beam identification can also be the resource ID of the sounding signal (SRS), or the beam identification can be the resource ID of the tracking signal (TRS).
  • CSI-RS channel state indication reference signal
  • ID channel state indication-reference signal
  • ID channel state indication-reference signal
  • the beam identification may also be a synchronization signal/physical broadcast channel (synchronization signal/physical broadcast channel) , SS/PBCH) time-domain index
  • the beam identification can also be the resource ID of the sounding signal (SRS)
  • TRS resource ID of the tracking signal
  • the number of beams used to transmit the PDCCH is smaller than the number of beams used to transmit the PDSCH, and the network device has a problem in sending control information to multiple terminal devices located in different beams.
  • the present application proposes a communication method in which the network device can flexibly select the length of the symbol carrying the control information of the terminal device, thereby achieving more flexible beam switching.
  • the method of the present application can increase the number of beams that the network device sends control information, so that the network device can time-multiplex and schedule multiple terminal devices located in different beams.
  • the communication method provided by the embodiments of the present application is applicable to the wireless communication scenario shown in FIG. 1 described above. Specifically, it is applicable to a high-frequency band wireless communication system, wherein the high-frequency band is not limited to the above-mentioned 52.6 GHz frequency band, but may be all frequency bands that use beam-based communication.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • the network device determines a guard time unit and a single carrier symbol.
  • the single carrier symbol may include a target control information element, and the target control information element includes target control information including the target terminal device.
  • the single carrier symbol includes N control information units, the guard time unit is located before the single carrier symbol and adjacent to the single carrier symbol, the N control information units include the target control information unit, N is greater than or equal to 1. Positive integer.
  • Single carrier here refers to the waveform technology with only one carrier in the working frequency band, and it is the multi-carrier waveform technology, such as OFDM technology.
  • Common single carriers include DFT-s-OFDM (that is, DFT extended OFDM technology), SC-QAM (that is, single carrier QAM modulation technology) and other technologies. It should be noted that, usually, a single carrier performs signal processing in units of single carrier symbols. A single carrier symbol contains several modulation symbols that need to be transmitted. However, in the application, the single carrier symbol contains only the part of the effective modulation symbol and does not include the guard interval.
  • FIG. 3 is a schematic diagram of a protection information unit and a single carrier symbol.
  • the single carrier symbol includes a control information element.
  • the guard time unit is located before the single carrier symbol.
  • FIG. 4 is a schematic diagram of another protection information unit and a single carrier symbol.
  • the single carrier symbol includes two control information elements.
  • the guard time unit is located before the single carrier symbol.
  • the guard time unit may also be called a guard period (Guard Period, GP).
  • the guard time unit may include guard data, for example, it may be a cyclic prefix, a zero guard interval, or any known sequence.
  • the terminal device may not be able to obtain the correct signal. Therefore, by setting a guard time unit before the control information unit including the useful signal, so that the unstable time occurs during the transmission period of the guard time unit, the influence on the useful signal caused by the beam switching can be avoided. In addition, setting the guard time unit can also avoid inter-symbol interference due to multipath channels.
  • the length of the protection data can be obtained according to historical statistics or simulation experiments.
  • the embodiments of the present application do not limit how to determine the length of the protection data.
  • the control information unit includes useful signals.
  • the useful signal may be control information determined by the network device for the terminal device.
  • the target terminal device may be one of multiple terminal devices.
  • the control information determined by the network device for the target terminal device is target control information.
  • the target control information may include downlink scheduling information, uplink scheduling information, power control information, frame structure format information, and so on.
  • each of the N control information units may include one piece of control information.
  • each of the four control information units may include one piece of control information.
  • the four control information units are control information unit 1, control information unit 2, control information unit 3, and control information unit 4, respectively.
  • the content in different control information units may correspond to different terminal devices. In other words, the control information included in the different control information units is determined by the network device for different terminal devices.
  • control information 1 in the control information unit 1 may be determined by the network device for the terminal device 1, and the control information 2 in the control information unit 2 may be the network device as The terminal device 2 determines that the control information 3 in the control information unit 3 may be determined by the network device for the terminal device 3, and the control information 4 in the control information unit 4 is determined by the network device for the terminal device 4.
  • the control information included in different control information units may correspond to the same terminal device. In other words, the control information determined by the network device for the same device may be included in different control information units.
  • control information unit 1 may include the control information 1 determined by the network device for the terminal device 1, and the control information unit 2 may also include the control information 1, the control information unit 3 may include the control information 2 determined by the network device for the terminal device 2, and the control information unit 4 may also include the control information 2.
  • some of the N control information units may include control information, and the remaining control information units may not include useful information.
  • N is equal to 4
  • two of the four control information units may include control information, and each of the two control information units includes one piece of information.
  • the control information included in different control information units may correspond to different terminal devices, or may correspond to the same terminal device.
  • the control information included in the control information unit and the terminal devices please refer to the above embodiments. No need to go into details.
  • each of the M control information units of the N control information units may include one piece of control information, where M is greater than or equal to 2 And a positive integer less than or equal to N.
  • the control information included in each of the M control information units may be referred to as first control information.
  • the M control information units may include the target control information unit.
  • each of the M control information units may further include first protection information.
  • each of the M control information units may include first protection information and first control information.
  • the first protection information is adjacent to the first control information, and the first protection information is located after the first control information.
  • FIG. 5 shows a schematic diagram of a single carrier symbol.
  • the single carrier symbol includes two control information units, which are control information unit 1 and control information unit 2, respectively.
  • Each of the control information unit 1 and the control information unit 2 includes first control information and first protection information. It can be seen from FIG. 5 that the first control information in each control information unit is located before the first protection information in the control information unit.
  • FIG. 6 shows a schematic diagram of a single carrier symbol.
  • the single carrier symbol includes four control information elements, which are control information element 1, control information element 2, control information element 3, and control information element 4, respectively.
  • Each of the control information unit 1 to the control information unit 4 includes first control information and first protection information. It can be seen from FIG. 6 that the first control information in each control information unit is located before the first protection information in the control information unit.
  • Each control information element in the two single carrier symbols of FIG. 5 and FIG. 6 includes first protection information and first control information.
  • M may be a positive integer less than or equal to N.
  • the N control information units may further include M1 control information units, and each control information unit of the M1 control information units may include only one control information.
  • the control information included in the M1 control information units is hereinafter referred to as second control information.
  • the control information unit including the first control information and the first protection information is referred to as a first type of control information unit, and the control information unit including only the second control information is referred to as a second type of control information. unit.
  • control information may not be included in the control information unit.
  • such a control information unit that does not include any control information is called a third type of control information unit.
  • a single carrier symbol may include M first-type control information elements, M1 second-type control information elements, and M2 third-type control information elements.
  • N is a positive integer greater than or equal to 2
  • M1 can be 0 or a positive integer greater than or equal to 1 and less than or equal to N
  • M2 can be 0, or It may be a positive integer greater than or equal to 1 and less than or equal to N, and M, M1, and M2 need to satisfy that the sum of M, M1, and M2 is N.
  • the N control information units may be any of the following cases: the N control information units are all the first type of control information units; the N control The information units are all the second type control information units; the N control information units are all the third type control information units; the N control information units are composed of the first type control information unit and the second type control information unit Composition, in other words, the third control information unit is not included in the N control information units; the N control information units are composed of the first control information unit and the third control information unit, in other words , The N control information units do not include the second control information unit; the N control information units are composed of the second control information unit and the third control information unit, in other words, the N control The first type of control information unit is not included in the information unit.
  • the single carrier symbol determined by the network device in step 201 includes target control information corresponding to the target terminal device determined by the network device. Therefore, the single carrier symbol includes at least one first-type control information element or one second-type control information element.
  • the role of the first protection information is similar to the role of the protection time unit. All are to reduce the interference to useful information caused by beam switching. Therefore, it can be understood that, when the network device determines that beam switching is required, the first protection information may be added to the information unit that generates beam switching. In other words, if the network device determines that the beams used to transmit two consecutive control information units are different, the first protection information may be added to the two consecutive control information units.
  • the role of the first protection information is similar to that of the protection time unit. Therefore, the content included in the first protection information may be a sequence, such as an all-zero sequence, a ZC sequence, and a pi/2BPSK sequence, or a Gold sequence, an m sequence, and so on.
  • the length of the protection time unit is the same as the length of the first protection information. This can facilitate the alignment of control information elements in single carrier symbols with different numbers of control information elements.
  • the first protection information included in any two of the M control information units is the same.
  • the network device can determine the first protection information only once, and then can apply the first protection information to the M control information units. This can reduce the workload of the network device.
  • the network device may send first protection information indication information to the target terminal device, and the first protection information indication information is used The first protection information is included in the unit indicating the target control information.
  • the target terminal device may determine that the target control information unit includes the first protection information. This can facilitate the target terminal device to perform blind detection on the single carrier symbol.
  • the target terminal device may perform blind detection on the single carrier symbol on the assumption that the target control information unit includes the first protection information.
  • the network device may send second protection information indication information to the target terminal device, and the second protection information indication The information is used to indicate that the first control information is not included in the target control information unit.
  • the target terminal device may determine that the first protection information is not included in the target control information unit. This can facilitate the target terminal device to detect the single carrier symbol.
  • the target terminal device may perform blind detection on the single carrier symbol on the assumption that the target control information unit does not include the second protection information.
  • the network device may add the first protection information to each of the N control information units.
  • each of the N control information units includes the first protection information.
  • This can facilitate the terminal device to perform blind detection on the single carrier symbol.
  • the terminal device may assume that all control information units include the first protection information, so that the terminal device does not need to include the first protection information in the control information unit. To assume that the single carrier symbol is blindly detected.
  • FIG. 7 shows five single carrier symbols, which are single carrier symbol 1, single carrier symbol 2, single carrier symbol 3, single carrier symbol 4, and single carrier symbol 5, respectively.
  • Single carrier symbol 1 includes 8 control information elements
  • single carrier symbol 2 includes four control information elements
  • single carrier symbol 3 includes five control information elements
  • single carrier symbol 4 includes two control information elements
  • single carrier Symbol 5 includes a control information unit.
  • control information unit 5 in the single carrier symbol 1 is aligned with the control information unit 2 in the single carrier symbol 2 and also aligned with the control information unit 3 in the single carrier symbol 3, and also in the single carrier symbol 4.
  • the control information unit 2 is aligned.
  • the control information element 3 in the single carrier symbol 1 and the control information element 2 in the single carrier symbol 3 are aligned.
  • the control information unit 7 in the single carrier symbol 1 is aligned with the control information unit 4 in the single carrier symbol 2 and the control information unit 2 in the single carrier symbol 3. In this way, the terminal device can facilitate blind detection of single carrier symbols.
  • the N control information units are obtained by performing DFT processing and Inverse Fast Fourier (IFFT) on the N initial control data.
  • IFFT Inverse Fast Fourier
  • the network device may sequentially perform DFT processing and IFFT processing on the N initial control data together to obtain the single carrier symbol, and then add the guard time unit before the single carrier symbol, Obtain the guard time unit and single carrier symbol to be transmitted.
  • this processing method is hereinafter referred to as the first processing method.
  • the network device may separately perform DFT processing and IFFT processing on the N initial control data in sequence to obtain the single carrier symbol.
  • the single carrier symbol is obtained.
  • the guard time unit is added before the single carrier symbol to obtain the guard time unit and the single carrier symbol to be transmitted.
  • this processing method is hereinafter referred to as the second processing method.
  • the corresponding DFT processing and IFFT processing include sequentially performing the following steps: DFT transformation, subcarrier mapping, and Inverse Fast Fourier (Inverse Fast Fourier Transformation, IFFT) transformation.
  • DFT transformation subcarrier mapping
  • IFFT Inverse Fast Fourier Transformation
  • the processing mode is the first processing mode, only one DFT transform, one subcarrier mapping, and one IFFT transform are needed to obtain the single carrier symbol.
  • the processing method is the second processing method, N DFT transformation, N subcarrier mapping, and N IFFT transformation need to be performed. It can be seen that the above-mentioned first processing method can reduce the number of DFT transformation, subcarrier mapping, and IFFT transformation processing.
  • the above second processing method requires more times of DFT transformation, subcarrier mapping and IFFT transformation processing, but different control information units can be processed in parallel, which is beneficial to reduce the overall processing delay.
  • the corresponding processing includes the following steps: N control data are sequentially arranged in sequence, and then the pulse shaping operation is performed, where the pulse shaping generally includes two steps of upsampling and filtering.
  • the network device sends the guard time unit and the single carrier symbol to the target terminal device.
  • the target terminal device receives the guard time unit and the single carrier symbol.
  • the target terminal device performs blind detection on the received single carrier symbol to obtain target control information of the target terminal device.
  • the maximum value of K is 8.
  • the length of the control information element may be 1/2 single carrier symbol length, 1/4 single carrier symbol length and 1/8 single carrier symbol length.
  • the target terminal device may perform blind detection on the single carrier symbol according to the possible length of the target control information unit corresponding to the target terminal device to obtain the target control information.
  • the terminal device can obtain the target control information through the following steps: the terminal device can obtain the data to be detected from the single carrier symbol, wherein the length of the data to be detected is any one of the N control information units The length of the unit; the terminal device obtains the target control information according to the data to be detected.
  • the length of the control information element can be 1/2 single carrier symbol length or 1/ 4 single carrier symbol lengths.
  • the single carrier symbol may also include a control information element.
  • the length of the control information element may be equal to the single carrier symbol length.
  • the length of the control information unit may be the length of a single carrier symbol, 1/2 of the length of a single carrier symbol, or 1/4 of the length of a single carrier symbol. For ease of description, the following assumes that the length of a single carrier symbol is L.
  • the length of the control information unit may be L, L/2, and L/4.
  • all possible lengths of the control information unit are referred to as optional lengths of the control information unit.
  • the optional lengths of the control information element include: L, L/2, and L/4, where L represents the length of the single carrier symbol.
  • the target terminal device may obtain the data to be detected from the single carrier symbol, and the length of the data to be detected may be one of the optional lengths of the control information unit.
  • the target terminal device may determine that the data to be analyzed is all data of the single carrier symbol. In this case, the target terminal device can parse the single carrier symbol to obtain the analysis result, and determine whether the analyzed data is the target control information of the target terminal device according to the analysis result. For example, if the cyclic redundancy check code (Cyclic Redundancy Check, CRC) check of the decoded result after the analysis is passed, it means that the target control information of the target terminal device is included in the data to be analyzed.
  • CRC Cyclic Redundancy Check
  • the target terminal device determines that the parsed data includes the target control information, the target terminal device does not need to acquire data of other lengths to be detected.
  • the target terminal device may continue to acquire data of other lengths from the single carrier symbol.
  • the length of the data to be detected acquired by the target terminal device is L/2. Since the length of the data to be detected is smaller than the length of the single carrier symbol, it can be concluded that the number of control information elements included in a single carrier symbol is a positive integer greater than or equal to 2.
  • the target control information unit may be the above-mentioned first type of control information unit (that is, the control information unit may include both control information and first protection information), or may be the above
  • the second type of control information unit that is, the control information unit may include only control information.
  • the target terminal device may assume that the target control information and the first protection information are included in the target control information unit (for convenience of description, this hypothetical method is hereinafter referred to as the first hypothetical method) to determine the to-be-detected Whether the target control information is included in the data.
  • the target terminal device may also assume that the target control information unit includes only the target control information (for convenience of description, this hypothetical method is hereinafter referred to as the second hypothetical method) to determine whether the target is included in the data to be detected Control information.
  • the network device may send first protection information indication information or second protection information indication information to the target terminal device, where the first protection information indication information is used to indicate the target control information unit Includes the first protection information, and the second protection information indication information is used to indicate that the target control information unit does not include the first protection information.
  • the target terminal device may determine whether the target control information is included in the data to be detected in a first hypothetical manner.
  • the target terminal device may determine whether the target control information is included in the data to be detected in a second hypothetical manner.
  • the network device may not send the first protection information indication information or the second protection information indication information to the target terminal device.
  • the terminal device may first determine whether the target control information is included in the data to be detected in one of the first hypothesis mode and the second hypothesis mode. For example, the target terminal device may first determine whether the target control information is included in the data to be detected in a first hypothetical manner. If it is determined in the first hypothetical manner that the target control information is not included in the data to be detected, then it is determined in the second hypothetical manner whether the target control information is included in the data to be detected.
  • the optional length of the control information element includes L/2 and L/4, so the combination of lengths that may appear sequentially in the single carrier symbol may be any of the following: the first The combination method is two control information units of length L/2; the second combination method is the control information units of length L/4, L/2 and L/4 in sequence; the third combination method is the length of control information in sequence It is the control information unit of L/4, L/4 and L/2; the fourth combination is the length of L/2, L/4 and L/4; the fifth combination is the length of four L/4 control information unit.
  • the target terminal device determines whether the target control information is included in the data to be detected in a first hypothetical manner.
  • the data of the first L/2 length of the single carrier symbol may include target control information corresponding to the target terminal device. Therefore, the target terminal device may first assume that the data to be detected is data of the first L/2 length in the single carrier symbol. In this case, the target terminal device may determine the first data to be parsed from the data to be detected according to the length of the first protection information.
  • the data to be detected is the first L/2 length data in the single carrier symbol.
  • the first data to be parsed is data except the first protection information in the data to be detected.
  • the sum of the length of the first protection information and the length of the first data to be parsed is the length of the data to be detected, that is, L/2.
  • the data to be detected is divided into two parts of data, followed by the first part of data and the second part of data.
  • the length of the first partial data is the same as the length of the first data to be parsed
  • the length of the second partial data is the same as the length of the first protection information.
  • the first part of data is the first data to be parsed. If the determined first detection result corresponding to the first data to be parsed is target control information corresponding to the target terminal device, the second part of data is the first protection information.
  • the target terminal device may parse the first data to be parsed to obtain a first detection result, and determine whether it is target control information corresponding to the target terminal device according to the first detection result.
  • first detection result For a specific implementation manner of how the target terminal device determines whether the first detection result is the target control information, reference may be made to the foregoing description, and it is not necessary to repeat it here.
  • the target terminal device determines that the first detection result is the target control information, the target terminal device does not need to continue to parse other data in the single carrier symbol.
  • the target terminal device may continue to blindly detect other data in the single carrier symbol.
  • the target terminal device may assume that the combination method in the single carrier symbol may be the second combination method described above.
  • the target terminal device may assume that the data to be detected is data with a length of L/2 in the middle of the single carrier symbol.
  • the terminal device may determine the first data to be parsed from the data to be detected according to the length of the first protection information. The sum of the length of the first protection information and the length of the first data to be parsed is the length of the data to be detected, that is, L/2.
  • the data to be detected is divided into two parts of data, followed by a first part of data and a second part of data.
  • the length of the first partial data is the same as the length of the first data to be parsed, and the length of the second partial data is the same as the length of the first protection information.
  • the first data to be parsed is the first part of the data to be detected, that is, the first part of the data to be detected. If the first detection result corresponding to the first data to be parsed is the target control information, then the first part of the data is the target control information, and the second part of the data is the first protection information.
  • the target terminal device may parse the first data to be parsed to obtain a first detection result, and determine whether it is target control information corresponding to the target terminal device according to the first detection result.
  • first detection result For a specific implementation manner of how the target terminal device determines whether the first detection result is the target control information, reference may be made to the foregoing description, and it is not necessary to repeat it here.
  • the target terminal device determines that the first detection result is the target control information, the target terminal device does not need to continue to parse other data in the single carrier symbol.
  • the target terminal device may continue to blindly detect other data in the single carrier symbol.
  • the last L/2 data of the single carrier symbol may also include the target control information element. Therefore, the target terminal device may assume that the data to be detected is the last data of the single carrier symbol with length L/2. The target terminal device assumes that the data to be detected is the last L/2 data of the single carrier symbol and the target terminal device assumes that the data to be detected is the first L/2 of the single carrier symbol and the middle L
  • the specific detection method of /2 data is the same. There is no need to go into details here.
  • the target terminal device determines that the last L/2 data includes a target control information element that is the target control information, the target terminal device does not need to continue to parse other data in the single carrier symbol.
  • the target terminal device may continue to assume that the length of the data to be detected is L/4, and Obtain corresponding data to be detected, and determine whether the target control information is included in the data to be detected.
  • the specific implementation of whether the target terminal device determines whether the target control information is included in the data to be detected with a length of L/4 and the specific implementation of the target terminal device determines whether the target control information is included in the data to be detected with a length of L/2 The method is similar, so I won't repeat it here.
  • the above describes the implementation manner of performing blind detection on the single carrier symbol in the first hypothetical manner.
  • the following describes how to perform blind detection on the single carrier symbol in the second hypothetical manner.
  • the target terminal device may parse the data to be detected to obtain a second detection result, and determine whether it is target control information corresponding to the target terminal device according to the second detection result. For a specific implementation manner of whether the target terminal device determines whether the second detection result is the target control information, reference may be made to the foregoing description, and it is not necessary to repeat it here.
  • the communication device 800 may be a network device or a component (such as a chip or a circuit) that can be used in the network device. As shown in FIG. 8, the communication device 800 may include a processing module 801 and a sending module 802.
  • the processing module 801 is used to determine a guard time unit and a single carrier symbol, where the single carrier symbol includes a target control information unit, and the target control information unit includes target control information of a target terminal device, and the single carrier symbol includes N controls Information unit, the guard time unit is located before the single carrier symbol and adjacent to the single carrier symbol, the N control information units include the target control information unit, and N is a positive integer greater than or equal to 1.
  • the sending module 802 is configured to send the guard time unit and the single carrier symbol to the target terminal device.
  • the processing module 801 may be implemented by a processor, and the sending module 802 may be implemented by a transceiver.
  • the specific functions and beneficial effects of the processing module 801 and the sending module 802 can be referred to the method shown in FIG. 2 and will not be repeated here.
  • a communication device which may also be a component (such as a chip or a circuit) that can be used in a network device.
  • the communication device may include a processor, and optionally, may also include a transceiver and a memory.
  • the processor may be used to implement the corresponding functions and operations of the processing module 801, and the transceiver may be used to implement the corresponding functions and operations of the transmitting module 802.
  • the memory may be used to store execution instructions or application program codes, and be controlled and executed by the processor to implement the communication method provided by the above embodiments of the present application; and/or may also be used to temporarily store some data and instruction information.
  • the memory may exist independently of the processor, and at this time, the memory may be connected to the processor through a communication line. In another possible design, the memory may also be integrated with the processor, which is not limited in this embodiment of the present application.
  • the communication device may be a terminal device or a component (such as a chip or a circuit) that can be used for the terminal device.
  • the communication device 900 may include a receiving module 901 and a processing module 902.
  • the receiving module 901 is configured to receive a guard time unit and a single carrier symbol sent by a network device, where the single carrier symbol includes a target control information unit, and the target control information unit includes target control information, and the single carrier symbol includes N controls Information unit, the guard time unit is located before the single carrier symbol and adjacent to the single carrier symbol, the N control information units include the target control information unit, and N is a positive integer greater than or equal to 1.
  • the processing module 902 is configured to perform blind detection on the single carrier symbol to obtain the target control information.
  • the receiving module 901 may be implemented by a transceiver, and the processing module 902 may be implemented by a processor.
  • the processing module 902 may be implemented by a processor.
  • a communication device may be a terminal device or a component (such as a chip or a circuit) that can be used in the terminal device.
  • the communication device may include a processor, and optionally, may also include a transceiver and a memory.
  • the processor may be used to implement the corresponding functions and operations of the processing module 902, and the transceiver may be used to implement the corresponding functions and operations of the receiving module 901.
  • the memory may be used to store execution instructions or application program codes, and be controlled and executed by the processor to implement the communication method provided by the above embodiments of the present application; and/or may also be used to temporarily store some data and instruction information.
  • the memory may exist independently of the processor, and at this time, the memory may be connected to the processor through a communication line. In another possible design, the memory may also be integrated with the processor, which is not limited in this embodiment of the present application.
  • the terminal of the network device 1000 includes a processor 1001, a memory 1002, and a transceiver 1003.
  • the processor 1001 may be used to process a communication protocol and communication data, control the terminal, execute a software program, process data of the software program, and so on.
  • the memory 1002 is mainly used to store software programs and data.
  • FIG. 10 For ease of explanation, only one memory and processor are shown in FIG. 10. In actual terminal products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiments of the present application.
  • a processor with a processing function may be regarded as a processing unit of the terminal.
  • the transceiver may also be called a transceiver unit, a transceiver, a transceiver device, or the like.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and the like.
  • the device used to implement the receiving function in the transceiver 1003 may be regarded as a receiving unit, and the device used to implement the sending function in the transceiver 1003 may be regarded as a sending unit, that is, the transceiver 1003 includes a receiving unit and a sending unit.
  • the receiving unit may sometimes be referred to as a receiver, receiver, or receiving circuit.
  • the sending unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • the processor 1001, the memory 1002, and the transceiver 1003 communicate with each other through an internal connection path, and transfer control and/or data signals
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 1001 or implemented by the processor 1001.
  • the processor 1001 may be an integrated circuit chip with signal processing capabilities.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1001 or an instruction in the form of software.
  • the processors described in the embodiments of the present application may be general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), and field programmable gate arrays. , FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGA field programmable gate arrays
  • the disclosed methods, steps, and logical block diagrams in the embodiments of the present invention may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • Software modules may be located in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory or electrically erasable programmable memory, registers, etc.
  • Storage media The storage medium is located in the memory.
  • the processor reads the instructions in the memory and combines the hardware to complete the steps of the above method.
  • the memory 1002 may store instructions for performing the method performed by the network device in the method shown in FIG. 2.
  • the processor 1001 can execute the instructions stored in the memory 1002 in combination with other hardware (for example, the transceiver 1003) to complete the steps performed by the network device in the method shown in FIG. 2.
  • other hardware for example, the transceiver 1003
  • An embodiment of the present application further provides a chip including a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit and a communication interface;
  • the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.
  • the chip can execute the method of the network device in the above method embodiment.
  • Embodiments of the present application also provide a computer-readable storage medium on which instructions are stored, and when the instructions are executed, the method of the network device in the foregoing method embodiment is executed.
  • Embodiments of the present application also provide a computer program product containing instructions, which execute the method of the network device in the foregoing method embodiment when the instruction is executed.
  • the terminal device 1100 includes a processor 1101, a memory 1102, and a transceiver 1103.
  • the processor 1101 may be used to process communication protocols and communication data, and control the terminal, execute software programs, process data of software programs, and so on.
  • the memory 1102 is mainly used to store software programs and data.
  • FIG. 11 For ease of explanation, only one memory and processor are shown in FIG. 11. In actual terminal products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiments of the present application.
  • a processor with a processing function may be regarded as a processing unit of the terminal.
  • the transceiver may also be called a transceiver unit, a transceiver, a transceiver device, or the like.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and the like.
  • the device used to implement the receiving function in the transceiver 1103 may be regarded as a receiving unit
  • the device used to implement the sending function in the transceiver 1103 may be regarded as a sending unit, that is, the transceiver 1103 includes a receiving unit and a sending unit.
  • the receiving unit may sometimes be referred to as a receiver, receiver, or receiving circuit.
  • the sending unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • the processor 1101, the memory 1102 and the transceiver 1103 communicate with each other through an internal connection path, and transfer control and/or data signals
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 1101 or implemented by the processor 1101.
  • the processor 1101 may be an integrated circuit chip with signal processing capabilities.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1101 or instructions in the form of software.
  • the processors described in the embodiments of the present application may be general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), and field programmable gate arrays (field programmable gate arrays). , FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSPs digital signal processors
  • ASICs application-specific integrated circuits
  • FPGA field programmable gate arrays
  • FPGA field programmable gate arrays
  • the disclosed methods, steps, and logical block diagrams in the embodiments of the present invention may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • Software modules may be located in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory or electrically erasable programmable memory, registers, etc.
  • Storage media The storage medium is located in the memory, and the processor reads the instructions in the memory and combines the hardware to complete the steps of the above method.
  • the memory 1102 may store instructions for performing the method performed by the terminal device in the method shown in FIG. 2.
  • the processor 1101 can execute the instructions stored in the memory 1102 in combination with other hardware (for example, the transceiver 1103) to complete the steps performed by the terminal device in the method shown in FIG. 2.
  • other hardware for example, the transceiver 1103
  • An embodiment of the present application further provides a chip including a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit and a communication interface;
  • the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.
  • the chip can execute the method of the terminal device in the above method embodiment.
  • Embodiments of the present application also provide a computer-readable storage medium on which instructions are stored, and when the instructions are executed, the method of the terminal device in the foregoing method embodiment is executed.
  • Embodiments of the present application also provide a computer program product containing instructions, which execute the method of the terminal device in the foregoing method embodiment when the instructions are executed.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de communication, un dispositif de réseau et un dispositif terminal. Le procédé comprend les étapes suivantes : un dispositif de réseau détermine une unité de temps de protection et un symbole à porteuse unique, l'unité de temps de protection étant située devant le symbole à porteuse unique et adjacente au symbole à porteuse unique, les N unités d'informations de commande comprenant l'unité d'informations de commande cible, N étant un nombre entier positif supérieur ou égal à 1 ; le dispositif de réseau envoie l'unité de temps de protection et le symbole à porteuse unique au dispositif de terminal cible. Selon la solution technique, l'unité de temps de protection est située devant le symbole à porteuse unique, de sorte que l'interférence entre symboles générée par un canal à trajets multiples et l'effet indésirable provoqué par une commutation radiofréquence pendant une commutation de faisceau sur des données utiles puissent être réduits.
PCT/CN2019/125084 2018-12-29 2019-12-13 Procédé de communication, dispositif de réseau et dispositif terminal Ceased WO2020135098A1 (fr)

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