WO2018130054A1 - 一种数据接收、发送方法和接收、发送设备 - Google Patents

一种数据接收、发送方法和接收、发送设备 Download PDF

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WO2018130054A1
WO2018130054A1 PCT/CN2017/117534 CN2017117534W WO2018130054A1 WO 2018130054 A1 WO2018130054 A1 WO 2018130054A1 CN 2017117534 W CN2017117534 W CN 2017117534W WO 2018130054 A1 WO2018130054 A1 WO 2018130054A1
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data
urllc
symbol
ofdm symbol
control information
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PCT/CN2017/117534
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English (en)
French (fr)
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樊波
唐小勇
李铕
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华为技术有限公司
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Priority to EP17890892.7A priority Critical patent/EP3562070B1/en
Publication of WO2018130054A1 publication Critical patent/WO2018130054A1/zh
Priority to US16/508,680 priority patent/US20190342043A1/en

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    • 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
    • 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
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2078—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the phase change per symbol period is constrained
    • H04L27/2082—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the phase change per symbol period is constrained for offset or staggered quadrature phase shift keying
    • 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
    • H04L27/2697—Multicarrier modulation systems in combination with other modulation techniques
    • H04L27/2698—Multicarrier modulation systems in combination with other modulation techniques double density OFDM/OQAM system, e.g. OFDM/OQAM-IOTA system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • 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 signaling, i.e. of overhead other than pilot signals
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • 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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a data receiving and transmitting method, and a receiving and transmitting device.
  • enhanced mobile broadband English: enhanced Mobile BroadBand, referred to as: eMBB
  • high reliability and low latency communication English: Ultra-Reliable Low Latency Communication (URLLC)
  • ultra-Reliable Low Latency Communication URLLC
  • massive Machine Type Communication mMTC for short.
  • the puncturing multiplexing technology can implement time-frequency resource multiplexing of eMBB and URLLC to more efficiently use time-frequency resources to transmit data.
  • the puncturing multiplexing technique refers to: when the URLLC data is to be sent and all the current time-frequency resources have been allocated, the URLLC data can occupy the time-frequency resources that have been allocated to the eMBB data, and the occupied time-frequency resources are occupied. The eMBB data that was originally sent will no longer be sent.
  • the URLLC data and its control information can be used to transmit the time-frequency resources that have been allocated to the eMBB data at any time.
  • FIG. 1 is a schematic diagram of realizing time-frequency resource multiplexing of eMBB and URLLC using a puncturing multiplexing technique.
  • the time-frequency resources allocated to the eMBB data are divided into a control area and a data area, the control area is used to transmit eMBB control information, the data area is used to transmit eMBB data, and the data is mapped to the data through a puncturing multiplexing technique.
  • the URLLC data mapped to the data area by the puncturing multiplexing technology and its control information are all located in the data area of the time-frequency resource, occupying part of the time-frequency resource that is used to transmit the eMBB data, and the eMBB data of the occupied time-frequency resource is Delayed delivery.
  • the existing LTE system when receiving downlink data, it is necessary to blindly check the control information in the control area, and then receive the data through the control information, but since the URLLC data and its control information are located in the data area of the time-frequency resource, The URLLC data is received using a downlink data receiving method in the existing LTE system.
  • the embodiments of the present invention provide a data receiving and transmitting method, and a receiving and transmitting device, which can quickly and accurately detect URLLC control information from time-frequency resources, and thereby efficiently receive URLLC data.
  • a first aspect of the embodiments of the present invention provides a method for receiving URLLC data from a time-frequency resource, which is applied to a receiving device, where time-frequency resources include eMBB data and URLLC data, and the time-frequency resource further includes an OFDM symbol, and OFDM The symbol includes an indication resource particle RE indicating that the RE indicates the URLLC control information in the OFDM symbol, and the method includes:
  • the indication RE indicates that there is URLLC control information in the OFDM symbol
  • the URLLC control information is detected in the OFDM symbol
  • the URLLC data is received based on the detected URLLC control information.
  • the URLLC control information may include transmission parameters of the URLLC data, such as but not limited to: time-frequency resources occupied by the URLLC data, and a modulation and coding scheme used by the URLLC data, etc., and the receiving device may demodulate and decode according to the modulation and coding scheme.
  • URLLC data may include transmission parameters of the URLLC data, such as but not limited to: time-frequency resources occupied by the URLLC data, and a modulation and coding scheme used by the URLLC data, etc.
  • the URLLC data receiving method provided by the embodiment of the present invention uses only one RE in one symbol to indicate whether there is URLLC control information in the current symbol, which saves resource overhead, and the receiving device may also determine that there is URLLC control in the current symbol by indicating the RE.
  • the URLLC control information is quickly detected from the preset search space, resulting in a lower URLLC data reception delay.
  • the indication RE indicates whether there is URLLC control information in the OFDM symbol, including:
  • the first data symbol and the second data symbol are obtained by performing low-order modulation or high-order modulation on the data on the indication RE.
  • the low-order modulation includes BPSK, the first data symbol is 1, the second data symbol is 0; or the high-order modulation includes 16QAM or 64QAM, and the first data symbol is any data symbol except the second data symbol.
  • the indication RE indicates whether there is URLLC control information in the OFDM symbol, including:
  • the system bandwidth of the communication system to which the receiving device belongs is divided into multiple sub-bands, indicating that the RE is on one of the multiple sub-bands, so that the interference signal of the neighboring cell of the cell where the receiving device is located can be reduced.
  • the impact of the value is a value that indicates that the RE is on one of the multiple sub-bands, so that the interference signal of the neighboring cell of the cell where the receiving device is located.
  • the method before detecting the URLLC control information in the OFDM symbol, the method further includes:
  • a message indicating that the subcarrier in which the RE is located is received from the transmitting device.
  • the OFDM symbol includes a receiving device-specific search space, and when the indication RE indicates that there is URLLC control information in the OFDM symbol, the URLLC control information is within the search space.
  • detecting URLLC control information in the OFDM symbol includes:
  • the URLLC control information is detected within a search space in the OFDM symbol.
  • the time-frequency resource includes multiple OFDM symbols, and the OFDM symbol is one of multiple OFDM symbols, and each of the multiple OFDM symbols includes one Instructing the RE, the plurality of OFDM symbols includes a plurality of indication REs, and each of the plurality of indication REs indicates whether there is URLLC control information in the OFDM symbol in which it is located. Further, the plurality of indication REs are all on the same subcarrier. A receiving device-specific search space is included in each of the plurality of OFDM symbols.
  • a second aspect of the embodiments of the present invention provides a method for receiving URLLC data from a time-frequency resource, which is applied to a receiving device, where a time-frequency resource includes multiple OFDM symbols, and only a part of the OFDM symbols include a receiving device.
  • a specific search space the partial OFDM symbol includes a first OFDM symbol, and the search space in the first OFDM symbol includes URLLC control information, and the method includes:
  • the URLLC data is received according to the URLLC control information.
  • the URLLC control information may include transmission parameters of the URLLC data, such as but not limited to: time-frequency resources occupied by the URLLC data, and a modulation and coding scheme used by the URLLC data, etc., and the receiving device may demodulate and decode according to the modulation and coding scheme.
  • URLLC data may include transmission parameters of the URLLC data, such as but not limited to: time-frequency resources occupied by the URLLC data, and a modulation and coding scheme used by the URLLC data, etc.
  • the URLLC data receiving method provided by the embodiment of the present invention does not occupy any time-frequency resources to indicate whether there is URLLC control information in the current symbol, which further saves resource overhead, and the receiving device can also quickly detect the URLLC from the search space according to a preset rule. Control information, resulting in lower URLLC data reception delay.
  • the partial OFDM symbol includes an OFDM symbol whose index is odd in the plurality of OFDM symbols, and the index is an even OFDM symbol or an OFDM symbol whose index is a multiple of 3.
  • the OFDM symbols except the partial OFDM symbols of the multiple OFDM symbols include the second OFDM symbol, the index of the second OFDM symbol is N, and the index of the first OFDM symbol is N+ 1, N is a positive integer, and the second OFDM symbol includes URLLC data.
  • a third aspect of the embodiments of the present invention provides a method for sending URLLC data, which is applied to a sending device, including:
  • the eMBB data and the URLLC data are transmitted in the time-frequency resource.
  • whether the URLLC control information is included in one OFDM symbol in the time-frequency resource by using an indication RE includes:
  • the URLLC control information is indicated in the OFDM symbol by transmitting the first data symbol in the indication RE, and the URLLC control information is not indicated in the OFDM symbol by transmitting the second data symbol in the indication RE.
  • the first data symbol and the second data symbol are obtained by performing low-order modulation or high-order modulation on the data on the indication RE.
  • the low-order modulation includes BPSK, the first data symbol is 1, the second data symbol is 0; or the high-order modulation includes 16QAM or 64QAM, and the first data symbol is any data symbol except the second data symbol.
  • whether the URLLC control information is included in one OFDM symbol in the time-frequency resource by using an indication RE includes:
  • the URLLC control information is indicated in the OFDM symbol by transmitting the highest energy data symbol in the indication RE, and no URLLC control information is indicated in the OFDM symbol by not transmitting any data symbol in the indication RE.
  • the system bandwidth of the communication system to which the sending device belongs is divided into multiple sub-bands, and the RE is indicated on one of the multiple sub-bands.
  • the method before sending the eMBB data and the URLLC data in the time-frequency resource, the method further includes:
  • a message indicating that the subcarrier in which the RE is located is sent to the receiving device.
  • the OFDM symbol includes a receiving device-specific search space, and when there is URLLC control information in the OFDM symbol, the URLLC control information is within the search space.
  • the time-frequency resource includes multiple OFDM symbols, and the OFDM symbol is one of multiple OFDM symbols, and each of the multiple OFDM symbols includes one Instructing the RE, the plurality of OFDM symbols includes a plurality of indication REs, and the transmitting device indicates, by each of the plurality of indication REs, whether there is URLLC control information in the OFDM symbol in which it is located. Further, the plurality of indication REs are all on the same subcarrier. A receiving device-specific search space is included in each of the plurality of OFDM symbols.
  • a fourth aspect of the embodiments of the present invention provides a method for sending URLLC data, which is applied to a sending device, including:
  • the time-frequency resource includes a plurality of OFDM symbols, and only a part of the OFDM symbols include a receiving device-specific search space, and the partial OFDM symbol includes the first OFDM symbol, the first The search space in the OFDM symbol includes URLLC control information, and the URLLC control information includes transmission parameters of the URLLC data.
  • the partial OFDM symbol includes an OFDM symbol whose index is odd in the plurality of OFDM symbols, and the index is an even OFDM symbol or an OFDM symbol whose index is a multiple of 3.
  • the OFDM symbols except the partial OFDM symbol of the multiple OFDM symbols include the second OFDM symbol, the index of the second OFDM symbol is N, and the index of the first OFDM symbol is N+ 1, N is a positive integer, and the second OFDM symbol includes URLLC data.
  • a fifth embodiment of the present invention provides a receiving device, configured to receive URLLC data from a time-frequency resource, where the time-frequency resource includes eMBB data and URLLC data, where the time-frequency resource further includes an OFDM symbol, and the OFDM symbol includes an indication.
  • the resource element RE indicates that the RE indicates the URLLC control information in the OFDM symbol
  • the receiving device includes:
  • a detecting unit configured to detect URLLC control information in the OFDM symbol when the indication RE indicates that there is URLLC control information in the OFDM symbol;
  • the first receiving unit receives the URLLC data according to the detected URLLC control information.
  • the indication RE indicates whether there is URLLC control information in the OFDM symbol, including:
  • the first data symbol and the second data symbol are obtained by performing low-order modulation or high-order modulation on the data on the indication RE.
  • the low-order modulation includes BPSK, the first data symbol is 1, the second data symbol is 0; or the high-order modulation includes 16QAM or 64QAM, and the first data symbol is any data symbol except the second data symbol.
  • the indication RE indicates whether there is URLLC control information in the OFDM symbol, including:
  • the system bandwidth of the communication system to which the receiving device currently belongs is divided into multiple sub-bands, and the RE is indicated on one of the plurality of sub-bands.
  • the receiving device further includes:
  • a second receiving unit configured to receive, from the sending device, a message indicating the subcarrier where the RE is located.
  • the OFDM symbol includes a receiving device-specific search space, and when the indication RE indicates that there is URLLC control information in the OFDM symbol, the URLLC control information is within the search space.
  • the detecting unit is further configured to detect the URLLC control information in a search space in the OFDM symbol.
  • the time-frequency resource includes multiple OFDM symbols, and the OFDM symbol is one of multiple OFDM symbols, and each of the multiple OFDM symbols includes one Instructing the RE, the plurality of OFDM symbols includes a plurality of indication REs, and each of the plurality of indication REs indicates whether there is URLLC control information in the OFDM symbol in which it is located. Further, the plurality of indication REs are all on the same subcarrier. A receiving device-specific search space is included in each of the plurality of OFDM symbols.
  • a sixth aspect of the embodiments of the present invention provides a receiving device, where a receiving device is configured to receive URLLC data from a time-frequency resource, where the time-frequency resource includes multiple OFDM symbols, and only part of the OFDM symbols include a receiving device-specific a search space, the partial OFDM symbol includes a first OFDM symbol, the search space in the first OFDM symbol includes URLLC control information, and the receiving device includes:
  • a detecting unit configured to detect URLLC control information in a search space in the first OFDM symbol
  • a receiving unit configured to receive the URLLC data according to the URLLC control information.
  • the partial OFDM symbol includes an OFDM symbol whose index is odd in the plurality of OFDM symbols, and the index is an even OFDM symbol or an OFDM symbol whose index is a multiple of 3.
  • the OFDM symbols except the partial OFDM symbols of the multiple OFDM symbols include the second OFDM symbol, the index of the second OFDM symbol is N, and the index of the first OFDM symbol is N+ 1, N is a positive integer, and the second OFDM symbol includes URLLC data.
  • a seventh aspect of the embodiments of the present invention provides a sending device, including:
  • An allocation unit configured to allocate time-frequency resources for eMBB data
  • an indication unit configured to indicate, by using one indicator resource RE, whether there is URLLC control information in one OFDM symbol in the time-frequency resource, indicating that the RE is one RE in the OFDM symbol, and the URLLC control information includes a transmission parameter of the URLLC data;
  • the first sending unit is configured to send the eMBB data and the URLLC data in the time-frequency resource.
  • the indicating unit is further configured to:
  • the URLLC control information is indicated in the OFDM symbol by transmitting the first data symbol in the indication RE, and the URLLC control information is not indicated in the OFDM symbol by transmitting the second data symbol in the indication RE.
  • the first data symbol and the second data symbol are obtained by performing low-order modulation or high-order modulation on the data on the indication RE.
  • the low-order modulation includes BPSK, the first data symbol is 1, the second data symbol is 0; or the high-order modulation includes 16QAM or 64QAM, and the first data symbol is any data symbol except the second data symbol.
  • the indicating unit is further configured to:
  • the URLLC control information is indicated in the OFDM symbol by transmitting the highest energy data symbol in the indication RE, and no URLLC control information is indicated in the OFDM symbol by not transmitting any data symbol in the indication RE.
  • the system bandwidth of the communication system to which the sending device belongs is divided into multiple sub-bands, and the RE is indicated on one of the multiple sub-bands.
  • the sending device further includes:
  • a second sending unit configured to send, to the receiving device, a message indicating the subcarrier where the RE is located.
  • the OFDM symbol includes a receiving device-specific search space, and when there is URLLC control information in the OFDM symbol, the URLLC control information is within the search space.
  • the time-frequency resource includes multiple OFDM symbols, and the OFDM symbol is one of multiple OFDM symbols, and each of the multiple OFDM symbols includes one Instructing the RE, the plurality of OFDM symbols includes a plurality of indication REs, and the transmitting device indicates, by each of the plurality of indication REs, whether there is URLLC control information in the OFDM symbol in which it is located. Further, the plurality of indication REs are all on the same subcarrier. A receiving device-specific search space is included in each of the plurality of OFDM symbols.
  • An eighth aspect of the embodiments of the present invention provides a sending device, including:
  • An allocation unit configured to allocate time-frequency resources for eMBB data
  • a sending unit configured to send eMBB data and URLLC data by using a time-frequency resource, where the time-frequency resource includes multiple OFDM symbols, and only part of the OFDM symbols include a receiving device-specific search space, and the partial OFDM symbol includes the first
  • the OFDM symbol, the search space in the first OFDM symbol includes URLLC control information, and the URLLC control information includes transmission parameters of the URLLC data.
  • the partial OFDM symbol includes an OFDM symbol whose index is odd in the plurality of OFDM symbols, and the index is an even OFDM symbol or an OFDM symbol whose index is a multiple of 3.
  • the OFDM symbols except the partial OFDM symbol of the multiple OFDM symbols include the second OFDM symbol, the index of the second OFDM symbol is N, and the index of the first OFDM symbol is N+ 1, N is a positive integer, and the second OFDM symbol includes URLLC data.
  • a ninth aspect of the present invention provides an apparatus for information transmission, the apparatus comprising: a memory, a processor, and a transceiver, the memory storing computer instructions, the processor implementing the computer instruction to implement the first aspect Methods.
  • a tenth aspect of the present invention provides an apparatus for information transmission, the apparatus comprising: a memory, a processor, and a transceiver, the memory storing computer instructions, the processor implementing the computer instruction to implement the second aspect Methods.
  • An eleventh aspect of the present invention provides an apparatus for information transmission, the apparatus comprising: a memory, a processor, and a transceiver, the memory storing computer instructions, the processor implementing the third aspect by executing the computer instruction The method described.
  • a twelfth aspect of the present invention provides an apparatus for information transmission, the apparatus comprising: a memory, a processor, and a transceiver, the memory storing computer instructions, the processor implementing the fourth aspect by executing the computer instruction The method described.
  • a thirteenth aspect of the present invention provides a storage medium storing program code, wherein when the program code is executed, the method of the first aspect is executed.
  • the storage medium includes, but is not limited to, a flash memory (English: flash memory), a hard disk (English: hard disk drive, HDD) or a solid state drive (English: solid state drive, SSD for short).
  • a fourteenth aspect of the present invention provides a storage medium storing program code, wherein when the program code is executed, the method of the second aspect is performed.
  • the storage medium includes, but is not limited to, a flash memory, a hard disk or a solid state disk.
  • a fifteenth aspect of the present invention provides a storage medium storing program code, wherein when the program code is executed, the method of the third aspect is executed.
  • the storage medium includes, but is not limited to, a flash memory, a hard disk or a solid state disk.
  • a sixteenth aspect of the present invention provides a storage medium in which program code is stored, and when the program code is executed, the method described in the fourth aspect is executed.
  • the storage medium includes, but is not limited to, a flash memory, a hard disk or a solid state disk.
  • the URLLC data receiving method uses only one RE in one symbol to indicate whether there is URLLC control information in the current symbol, which saves resource overhead, and the receiving device may also determine that the current symbol has a URLLC by indicating the RE.
  • the URLLC control information is quickly detected from the preset search space, resulting in a lower URLLC data reception delay.
  • FIG. 1 is a schematic diagram of realizing time-frequency resource multiplexing of eMBB and URLLC using a puncturing multiplexing technique
  • FIG. 2 is a schematic structural diagram of a system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a URLLC data receiving method
  • FIG. 4 is a schematic flowchart of a method for sending and receiving URLLC data according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a low-order modulation indication according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a high-order modulation indication according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of dividing a system bandwidth according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a search space according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of another method for sending and receiving URLLC data according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a receiving device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another receiving device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a sending device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another sending device according to an embodiment of the present disclosure.
  • FIG. 14 is a physical structural diagram of an information transmission device according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a system architecture applicable to an embodiment of the present invention.
  • the system architecture 20 includes a transmitting device 201 and a receiving device 202.
  • the transmitting device 201 can perform information transmission with the receiving device 202 through the network.
  • the sending device may be a base station device (English: base station, referred to as BS).
  • a base station device also referred to as a base station, is a device deployed in a wireless access network to provide wireless communication functionality.
  • a device that provides a base station function in a 2G network includes a base transceiver station (BTS) and a base station controller (BSC), and a device that provides a base station function in a 3G network.
  • BTS base transceiver station
  • BSC base station controller
  • the device providing the base station function in the 4G network includes an evolved Node B (English: evolved NodeB, eNB for short), at 5G
  • the devices providing the functions of the base station in the network include a new wireless node B (English: New Radio NodeB, abbreviated as: gNB), a centralized unit (English: Centralized Unit, CU for short), a distributed unit (English: Distributed Unit), and a new wireless control.
  • the device that provides the function of the base station is an access point (English: Access Point, abbreviated as AP).
  • the receiving device can be a device that provides voice and/or data connectivity to the user, including wired terminals and wireless terminals.
  • the wireless terminal can be a handheld device with wireless connectivity, or other processing device connected to a wireless modem, and a mobile terminal that communicates with one or more core networks via a wireless access network.
  • the wireless terminal can be a mobile phone, a computer, a tablet computer, a personal digital assistant (PDA), a mobile internet device (English: mobile Internet device, MID), a wearable device, and an e-book. Reader (English: e-book reader).
  • the wireless terminal can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
  • the wireless terminal can be part of a mobile station (English: mobile station), an access point (English: access point), or a user equipment (English: user equipment, abbreviated as UE).
  • the communication system applicable to the above system architecture includes but is not limited to: Code Division Multiple Access (CDMA) IS-95, Code Division Multiple Access (CDMA) 2000, Time Division Synchronization Code Division Multiple Access (English: Time Division-Synchronous Code Division Multiple Access, TD-SCDMA for short), Wideband Code Division Multiple Access (WCDMA), Time Division Duplex - Long Term Evolution (English) :Time Division Duplexing-Long Term Evolution (TDD LTE), Frequency Division Duplexing-Long Term Evolution (FDD LTE), Long Term Evolution-Enhancement (English: Long Term Evolution- Advanced, referred to as LTE-advanced), and various wireless communication systems (for example, 5G systems) that are evolving in the future.
  • CDMA Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • CDMA Code Division Multiple Access 2000
  • Time Division Synchronization Code Division Multiple Access English: Time Division-Synchronous Code Division Multiple Access, TD-SCDMA for short
  • WCDMA Wideband
  • the URLLC data reception depends on its control information.
  • the receiving device When the time-frequency resource multiplexing of the eMBB and the URLLC is implemented by using the puncturing multiplexing technology, the receiving device only needs to detect the control information of the URLLC data from the time-frequency resource carrying the eMBB data.
  • the URLLC data can be received through control information.
  • 3 is a schematic diagram of a method for receiving URLLC data. As shown in the figure, the method indicates information of URLLC data in the eMBB scheduling period by adding a control channel at the end of the eMBB scheduling period, including: URLLC data in the scheduling period. The number, and the time-frequency position of each URLLC data and its control information, so that all URLLC data can be received.
  • the receiving device since the control information is located at the end of the eMBB scheduling period, the receiving device must wait until the end of the eMBB scheduling period to receive the URLLC data, which will bring a large delay to the reception of the URLLC data, and cannot meet the low latency requirement of the URLLC. .
  • FIG. 4 is a schematic flowchart of a method for sending and receiving URLLC data according to an embodiment of the present invention.
  • the method mainly includes two parts.
  • the first part is a URLLC control information indication
  • the second part is to detect URLLC control information according to the URLLC control information indication.
  • the URLLC control information indication is used to indicate whether there is URLLC control information on the OFDM symbol (hereinafter referred to as: symbol), and the receiving device detects the URLLC control information only in the symbol with the URLLC control information according to the indication, thereby passing the smaller time-frequency resource.
  • the URLLC data transmission and reception method includes the following steps (there are no timing relationships in the following steps except for explicit explanation):
  • the sending device allocates time-frequency resources (hereinafter referred to as time-frequency resources) for the eMBB data.
  • TTI Transmission Time Interval
  • S402 The sending device acquires URLLC data.
  • the sending device may receive the URL LC data from the core network element, the gateway, the service server, and the like, which is not limited in this embodiment of the present invention.
  • S403 The sending device maps the URLLC data and its control information to the time-frequency resource allocated for the eMBB data in S401.
  • the sending device indicates, among the symbols in the time-frequency resource, URLLC control information.
  • the embodiment of the present invention provides three methods for indicating URLLC control information: 1. a low-order modulation indication method; 2. a high-order modulation indication method; and an energy indication method. All three methods implement the URLLC control information indication by indicating resource elements (English: Resource Element, RE: RE). Each symbol of the time-frequency resource has an indication RE for indicating whether the current symbol (ie, the symbol indicating the RE is located, the same below) has URLLC control information. The indication REs in different symbols may be located on the same subcarrier or on different subcarriers. When a URLLC control message sent to a receiving device spans a plurality of symbols, URLLC control information may be indicated only on the indication RE of the first symbol of the plurality of symbols to indicate that the URLLC control information starts from the current symbol. .
  • FIG. 5 is a schematic diagram of a low-order modulation indication according to an embodiment of the present invention.
  • the low-order indication means that the transmitting device modulates the data sent on the indication RE by using a low-order modulation technique, such as Binary Phase Shift Keying (BPSK).
  • BPSK Binary Phase Shift Keying
  • the transmitting device modulates the data sent on the indication RE by using a low-order modulation technique when the data symbol “1” is transmitted on the indication RE, it indicates that there is URLLC control information in the current symbol; when the data symbol “0” is transmitted. , indicating that there is no URLLC control information in the current symbol.
  • BPSK Binary Phase Shift Keying
  • the transmitting device may transmit the data symbol "1" only on the indication RE in the first one of the plurality of symbols spanned by the URLLC control information, and the indication RE in the other symbols The data symbol "0” is transmitted upward, and the data symbol "1” may also be transmitted on the indication RE among the plurality of symbols spanned by the URLLC control information.
  • the transmitting device may also indicate that there is no URLLC control information in the current symbol when transmitting the data symbol "1" on the indication RE; when the data symbol "0" is transmitted, it indicates that there is URLLC control information in the current symbol.
  • FIG. 6 is a schematic diagram of a high-order modulation indication according to an embodiment of the present invention.
  • the high-order indication means that the transmitting device modulates the data transmitted on the indication RE by using a high-order modulation technique, such as 16-order quadrature amplitude modulation (English: 16-Quadrature Amplitude Modulation, referred to as 16QAM) or 64-order quadrature amplitude modulation ( English: 64-Quadrature Amplitude Modulation, referred to as: 64QAM).
  • 16QAM 16-order quadrature amplitude modulation
  • 64QAM 64-order quadrature amplitude modulation
  • the reliability of the high-order modulation is lower than that of the low-order modulation.
  • the transmitting device When the data is transmitted, the error is easy to occur, causing the receiving device to misjudge the presence or absence of the URLLC control information in the current symbol, including determining that the URLLC control information is not URLLC control information, and The URLLC control information is judged to have no URLLC control information.
  • the former misjudgment will cause the receiving device to perform an unnecessary detection.
  • the latter misjudgment will cause the receiving device to miss the URLLC control information.
  • the cost of the latter misjudgment is much higher than the former.
  • the transmitting device modulates the data transmitted on the indication RE using a high-order modulation technique, and then transmits a specific data symbol on the indication RE (for example, "0000").
  • the energy indication method indicates by indicating the energy of the RE. Specifically, when there is no URLLC control information in the current symbol, the sending device does not send any data symbol in the indication RE, that is, the energy of the RE is 0; the URL is in the current symbol.
  • the transmitting device sends the data symbol with the highest energy under the current modulation technology in the indication RE, such as the data symbol corresponding to the constellation point 601 in FIG.
  • the receiving device measures the energy value of the RE. If the energy value of the RE is less than the preset threshold, it is determined that there is no URLLC control information in the current symbol. If the energy value of the RE is greater than or equal to the preset threshold, it is determined that the current symbol has a URLLC.
  • Control information in which the preset threshold is greater than zero is because even if the transmitting device does not transmit any signal on the indication RE, the energy value indicating the RE is likely to be greater than 0 due to noise and interference from other cells.
  • FIG. 7 is a schematic diagram of dividing a system bandwidth according to an embodiment of the present invention.
  • users of one cell for example, cell 70
  • a cell center for example, cell center 701
  • a cell edge for example, cell edge 702
  • the edge user if the edge user of the neighboring cell of the cell where the sending device is located receives data on the RE of the same frequency as the RE, the energy of the RE is superimposed on the RE, causing the energy value of the RE to increase, thereby causing The misjudgment of the receiving device, for example, the URLLC control information is not determined to have URLLC control information.
  • the entire system bandwidth of the system to which the transmitting device and/or the receiving device belongs may be divided into three sub-bands: sub-band 1, sub-band 2, and sub-band 3, and adjacent three.
  • the edge users of each cell in each cell use the frequency of one of the three sub-bands for data transmission, and the central users of each of the three adjacent cells use the entire system bandwidth.
  • the edge users of any two neighboring cells use different sub-bands, and each cell uses the RE on the sub-band used by the edge user of the current cell as the indication RE.
  • the cell 70 uses the RE on the sub-band 3 as the indication RE.
  • the edge user of the cell 71 receives the data using the RE on the subband 2, such that the edge user of the cell 71 receives the data in the RE of the frequency different from the indication RE used by the cell 70, thereby reducing the receiving device when the energy indication method is used.
  • the sending device may be in a main information block (English: Master Information Block, MIB) or a system information block (English: System Information Block, A field of the abbreviation: SIB) carries the frequency domain location information indicating the RE, and then sends the frequency domain location information indicating the RE to all receiving devices of the cell through the MIB or the SIB.
  • MIB Master Information Block
  • SIB System Information Block
  • the transmitting device can perform this step at the very beginning of the method shown in FIG.
  • the sending device sends the eMBB data and the URLLC data in the time-frequency resource.
  • the receiving device determines, according to the indication RE, whether there is URLLC control information in the time-frequency resource.
  • the receiving device detects the URLLC control information in a symbol that has URLLC control information.
  • the downlink control information (English: Downlink Control Information, DCI for short) is transmitted through the physical downlink control channel (English: Physical Downlink Control Channel, PDCCH for short).
  • the DCI has multiple types and different types. The DCI size may also be different.
  • the basic unit carrying the DCI is a Control Channel Element (English: Control Channel Element, CCE for short), and one CCE includes 36 REs.
  • the receiving device does not know what type of DCI is sent on the current PDCCH, and does not know where the information it needs is, but the receiving device knows its current expected information. For different expected information, the receiving device The CRC is verified by using the corresponding Radio Network Temporary Identity (RNTI) and the CCE order. If the CRC is successful, the receiving device determines that the CCE information is required by itself, and can also determine the corresponding The DCI type and modulation method, and then the DCI content, which is the DCI blind detection process in the LTE system.
  • RNTI Radio Network Temporary Identity
  • the LTE system introduces the concept of search space, which limits the DCI to the search space, and the receiving device only needs to blindly check the DCI in the search space.
  • search space which limits the DCI to the search space
  • the receiving device only needs to blindly check the DCI in the search space.
  • DCI types such as paging
  • all receiving devices need to be monitored
  • DCI types such as uplink and downlink scheduling instructions
  • only related to a specific receiving device only a specific receiving device needs to be monitored. Therefore, the Common Search Space and the UE-Specific Search Space are also divided in the LTE system to further improve the blind detection efficiency of the receiving device.
  • the search space in the LTE system is located in the control area of the time-frequency resource, and the URLLC control information is located in the data area of the time-frequency resource. Therefore, the embodiment of the present invention defines a new search space. For each receiving device in a cell, it has one or part of the search space specific to the receiving device in each symbol of the data region of the time-frequency resource. It is expressed as "one or part of the search space" because there may be a case where the search space is in multiple consecutive symbols.
  • FIG. 8 is a schematic diagram of a search space according to an embodiment of the present invention. As shown in FIG. 8 , search spaces 1-8 are located in the first 8th symbol, and search space 9 is located in the 9th and 10th symbols. The space 10 is located in the 10th and 11th symbols, and the search spaces 1-10 are all a receiving device-specific search space.
  • the receiving device may obtain the frequency domain location of the search space in each symbol of the data region of the time-frequency resource by using a specific mapping algorithm (for example, but not limited to: refer to the wireless network temporary identifier of the receiving device in the LTE system) English: Radio Network Temporary Identity (RNTI) and the current subframe number to calculate the frequency domain location of the search space.
  • the transmitting device carries the URLLC control information when mapping the obtained URLLC data to the time-frequency resource.
  • the receiving device can first determine which symbols have URLLC control information, and then perform detection in a specific search space in the symbol with the URLLC control information, thereby improving the detection speed of the URLLC control information.
  • the receiving device may use the DCI blind detection method in the existing LTE system, and may also use other methods, which is not limited by the embodiment of the present invention.
  • the receiving device receives the URLLC data according to the detected URLLC control information.
  • the receiving device can learn the transmission parameters of the URLLC data from the detected URLLC control information, and receive the URLLC data accordingly.
  • the URLLC data sending and receiving method uses only one RE in one symbol to indicate whether there is URLLC control information in the current symbol, which saves resource overhead, and the receiving device can also pass
  • the RE is determined to have the URLLC control information in the current symbol
  • the URLLC control information is quickly detected from the preset search space, resulting in a lower URLLC data reception delay.
  • FIG. 9 is a schematic flowchart of another method for sending and receiving URLLC data according to an embodiment of the present invention.
  • the sending device does not indicate which symbols in the time-frequency resource have URLLC control information, but according to a preset rule.
  • the URLLC control information is carried in a part of the symbol of the time-frequency resource, and accordingly, the receiving device detects the URLLC control information only in the part of the symbol.
  • the URLLC data transmission and reception method includes the following steps (there is no timing relationship in the following steps except for explicit explanation):
  • the transmitting device allocates time-frequency resources (hereinafter referred to as time-frequency resources) for the eMBB data.
  • TTI Transmission Time Interval
  • S902 The sending device acquires URLLC data.
  • the sending device may receive the URL LC data from the core network element, the gateway, the service server, and the like, which is not limited in this embodiment of the present invention.
  • S903 The sending device maps the URLLC data and its control information to the time-frequency resource allocated to the eMBB data in S901.
  • the sending device maps the URLLC control information to the partial symbols of the time-frequency resource according to a preset rule, such as, but not limited to, mapping the URLLC control information to an odd number (1, 3, 5, ... The symbol), the index is an even number (the 2nd, 4th, 6th symbols) or the index is a multiple of 3 (the 3rd, 6th, 9th symbols).
  • a preset rule such as, but not limited to, mapping the URLLC control information to an odd number (1, 3, 5, ... The symbol)
  • the index is an even number (the 2nd, 4th, 6th symbols) or the index is a multiple of 3 (the 3rd, 6th, 9th symbols).
  • the sending device may carry the time domain location information of the URLLC control information in a field of the MIB or the SIB (ie, which part of the symbol has the URLLC control information, or what kind of rule the sending device maps to the URLLC. Control information), and then transmit the time domain location information of the URLLC control information to all receiving devices of the cell through the MIB or the SIB.
  • the transmitting device can perform this step at the very beginning of the method shown in FIG.
  • the sending device sends the eMBB data and the URLLC data in the time-frequency resource.
  • the receiving device detects the URLLC control information in the symbol with the URLLC control information.
  • the embodiment of the present invention further limits the location of the search space to the symbol in which the URLLC control information is located, for example, but not limited to: when the sending device carries the URLLC control information in the index as an odd number.
  • the receiving device-specific search space is also located in a symbol whose index is an odd number, an index is an even number, or an index is a multiple of 3.
  • the embodiment of the present invention may limit the start symbol of the search space to the symbol in which the URLLC control information is located, for example, when the sending device carries the URLLC control information in the index as an odd number.
  • the starting symbol of the search space may be the first, third, fifth... symbols, and if the search space is in two consecutive symbols, the receiving device will be in the first and second symbols.
  • the URLLC control information is detected within the search space.
  • the receiving device receives the URLLC data according to the detected URLLC control information.
  • the receiving device may learn the transmission parameter of the URLLC data from the detected URLLC control information (for example, but not limited to: the time-frequency resource occupied by the URLLC data, and the modulation and coding scheme used by the URLLC data, etc., and the receiving device may according to the modulation and coding scheme. To demodulate and decode the URLLC data) and receive the URLLC data accordingly.
  • the detected URLLC control information for example, but not limited to: the time-frequency resource occupied by the URLLC data, and the modulation and coding scheme used by the URLLC data, etc.
  • the control information is carried in a partial symbol according to a preset rule. For example, when the URLLC control information is sent only in the symbol with an odd index, the receiving delay of the URLLC data may occur. Because of the low latency feature of the URLLC data, the sending device punctured the URLLC data in the time-frequency resource carrying the eMBB data at any time. For example, the URLLC data needs to be sent in the sixth symbol, but based on the rule, the URLLC control information is Only if the index is sent in an odd-numbered symbol, the URLLC data can only be sent in the 7th symbol together with the control information, resulting in a delay of 1 symbol.
  • data may be sent first, and then control information of the data may be sent.
  • the URLLC data may be directly sent in the sixth symbol, and then the URLLC data is sent in the seventh symbol. Control information to avoid the reception delay of URLLC data.
  • the URLLC data sending and receiving method provided by the embodiment of the present invention does not occupy any time-frequency resources to indicate whether there is URLLC control information in the current symbol, which further saves resource overhead, and the receiving device can also quickly
  • the URLLC control information is detected in the preset search space, resulting in a lower URLLC data reception delay.
  • FIG. 10 is a schematic structural diagram of a receiving device according to an embodiment of the present invention.
  • the receiving device 100 is configured to perform a method on the receiving device side as shown in FIG. 4, and receive URLLC data from a time-frequency resource.
  • the time-frequency resource includes eMBB data and URLLC data, and the time-frequency resource further includes an OFDM symbol, and the OFDM symbol includes an indication resource particle RE, and the indication RE indicates whether there is URLLC control information in the OFDM symbol, and the receiving device includes:
  • the detecting unit 1001 is configured to detect URLLC control information in the OFDM symbol when the indication RE indicates that there is URLLC control information in the OFDM symbol;
  • the first receiving unit 1002 is configured to receive the URLLC data according to the detected URLLC control information.
  • the receiving device further includes a second receiving unit 1003, configured to receive, from the sending device, a message indicating the subcarrier where the RE is located.
  • a second receiving unit 1003 configured to receive, from the sending device, a message indicating the subcarrier where the RE is located.
  • the detecting unit 1001 is further configured to detect the URLLC control information in a search space in the OFDM symbol.
  • FIG. 11 is a schematic structural diagram of another receiving device according to an embodiment of the present invention.
  • the receiving device 110 is configured to perform a method on the receiving device side as shown in FIG. 9 to receive URLLC data from a time-frequency resource.
  • the time-frequency resource includes a plurality of OFDM symbols, and only some of the OFDM symbols include a receiving device-specific search space, the partial OFDM symbols include a first OFDM symbol, and the search space in the first OFDM symbol includes URLLC control information. :
  • the detecting unit 1101 is configured to detect URLLC control information in a search space in the first OFDM symbol;
  • the receiving unit 1102 is configured to receive the URLLC data according to the URLLC control information.
  • FIG. 12 is a schematic structural diagram of a sending device according to an embodiment of the present invention.
  • the sending device 120 is configured to perform the method on the sending device side as shown in FIG. 4, including:
  • An allocating unit 1201, configured to allocate time-frequency resources for eMBB data
  • the indicating unit 1202 is configured to indicate, by using one indicator resource RE, whether there is URLLC control information in one OFDM symbol in the time-frequency resource, indicating that the RE is one RE in the OFDM symbol, and the URLLC control information includes a transmission parameter of the URLLC data;
  • the first sending unit 1203 is configured to send eMBB data and URLLC data in a time-frequency resource.
  • the indicating unit 1202 is further configured to indicate that there is URLLC control information in the OFDM symbol by transmitting the first data symbol in the indication RE, and indicating that there is no URLLC control information in the OFDM symbol by sending the second data symbol in the indication RE.
  • the indicating unit 1202 is further configured to indicate that there is URLLC control information in the OFDM symbol by transmitting the highest energy data symbol in the indication RE, and indicating that there is no URLLC control information in the OFDM symbol by not transmitting any data symbol in the indication RE. .
  • the sending device 120 further includes a second sending unit 1204, configured to send, to the receiving device, a message indicating the subcarrier where the RE is located.
  • a second sending unit 1204 configured to send, to the receiving device, a message indicating the subcarrier where the RE is located.
  • FIG. 13 is a schematic structural diagram of another sending device according to an embodiment of the present invention.
  • the sending device 130 is configured to perform the method on the sending device side as shown in FIG. 9, and includes:
  • An allocating unit 1301, configured to allocate time-frequency resources for eMBB data
  • the sending unit 1302 is configured to send eMBB data and URLLC data by using a time-frequency resource, where the time-frequency resource includes multiple OFDM symbols, and only part of the OFDM symbols include a receiving device-specific search space, and the partial OFDM symbol includes An OFDM symbol, the search space in the first OFDM symbol includes URLLC control information, and the URLLC control information includes transmission parameters of the URLLC data.
  • FIG. 14 is a physical structural diagram of an information transmission device according to an embodiment of the present invention.
  • the device 140 may be used to perform a method of the transmitting device side or the receiving device side as shown in FIG. 4, or a method of the transmitting device side or the receiving device side as shown in FIG.
  • the device 140 includes a memory 1401, a processor 1402, a transceiver 1403, and a bus system 1404.
  • the memory 1401 is configured to store a program.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 1401 may be a random access memory (RAM) or a non-volatile memory, such as at least one disk storage. Only one memory is shown in the figure, of course, the memory can also be set to a plurality as needed.
  • the memory 1401 can also be a memory in the processor 1402.
  • the memory 1401 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the processor 1402 controls the operation of the device 140, which may also be referred to as a CPU (Central Processing Unit).
  • the various components of device 140 are coupled together by a bus system 1404, which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • bus system 1404 may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • bus system 1404 for clarity of description, various buses are labeled as bus system 1404 in the figure. For ease of representation, only the schematic drawing is shown in FIG.
  • Processor 1402 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1402 or an instruction in a form of software.
  • the processor 1402 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1401, and the processor 1402 reads the information in the memory 1401 and performs the above method steps in conjunction with its hardware.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

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Abstract

本发明实施例提供了一种从时频资源中接收URLLC数据的方法，应用于一种接收设备，时频资源中包括eMBB数据和URLLC数据，时频资源还包括一个OFDM符号，OFDM符号包括一个指示资源粒子RE，指示RE指示了OFDM符号中是否有URLLC控制信息，方法包括：当指示RE指示OFDM符号中有URLLC控制信息时，在OFDM符号中检测URLLC控制信息，根据检测到的URLLC控制信息接收URLLC数据。

Description

一种数据接收、发送方法和接收、发送设备 技术领域
本发明实施例涉及通信技术领域，特别涉及一种数据接收、发送方法和接收、发送设备。
背景技术
第五代移动通信***(英文：5th generation mobile networks，简称：5G)中存在三种应用场景：增强型移动宽带(英文：enhanced Mobile BroadBand，简称：eMBB)，高可靠低时延通信(英文：Ultra-Reliable Low Latency Communication，简称：URLLC)和大规模物联网通信(英文：massive Machine Type Communication，简称：mMTC)。其中，打孔复用技术可以实现eMBB和URLLC的时频资源复用，以更加高效的利用时频资源来传输数据。概括来讲，打孔复用技术是指：当URLLC数据要发送而当前所有的时频资源都已经分配时，URLLC数据可以占用已经分配给eMBB数据的时频资源，而被占用的时频资源上本来要发送的eMBB数据将不再发送。此外，为了满足低时延的需求，做到URLLC数据“随到随传”，URLLC数据及其控制信息可以随时占用已经分配给eMBB数据的时频资源来进行传输。
图1为使用打孔复用技术实现eMBB和URLLC的时频资源复用的示意图。如图1所示，分配给eMBB数据的时频资源分为控制区域和数据区域，控制区域用于发送eMBB控制信息，数据区域用于发送eMBB数据，以及通过打孔复用技术映射到该数据区域的URLLC数据及其控制信息。通过打孔复用技术映射到数据区域的URLLC数据及其控制信息都位于时频资源的数据区域，占用了本应用于传输eMBB数据的部分时频资源，被占用时频资源的eMBB数据则被延迟发送。
现有的LTE***中，在接收下行数据时，需要先在控制区域盲检控制信息，然后再通过控制信息接收数据，但是由于URLLC数据及其控制信息都位于时频资源的数据区域，因此无法使用现有的LTE***中的下行数据接收方法来接收URLLC数据。
发明内容
本发明实施例提供了一种数据接收、发送方法和接收、发送设备，以快速准确地从时频资源中检测URLLC控制信息，进而高效地接收URLLC数据。
本发明实施例第一方面提供了一种从时频资源中接收URLLC数据的方法，应用于一种接收设备，时频资源中包括eMBB数据和URLLC数据，时频资源还包括一个OFDM符号，OFDM符号包括一个指示资源粒子RE，指示RE指示了OFDM符号中是否有URLLC控制信息，方法包括：
当指示RE指示OFDM符号中有URLLC控制信息时，在OFDM符号中检测URLLC控制信息；
根据检测到的URLLC控制信息接收URLLC数据。
URLLC控制信息可以包括URLLC数据的传输参数，例如但不限于：URLLC数据所占用的时频资源，以及URLLC数据所采用的调制编码方案等，接收设备可以根据该调制编码方案来解调和译码URLLC数据。
本发明实施例提供的URLLC数据接收方法只使用一个符号中的一个RE来指示当前符号中是否有URLLC控制信息，节省了资源开销，而接收设备也可以在通过指示RE确定当前符号中有URLLC控制信息时，快速的从预设的搜索空间内检测URLLC控制信息，带来更低的URLLC数据接收时延。
结合第一方面，在一种实现方式中，指示RE指示了OFDM符号中是否有URLLC控制信息，包括：
指示RE中包括第一数据符号时，OFDM符号中有URLLC控制信息，指示RE中包括第二数据符号时，OFDM符号中没有URLLC控制信息。
其中，第一数据符号和第二数据符号为对指示RE上的数据经过低阶调制或高阶调制后得到的。进一步的，低阶调制包括BPSK，第一数据符号为1，第二数据符号为0；或者高阶调制包括16QAM或64QAM，第一数据符号为除第二数据符号以外的任意数据符号。
结合第一方面，在另一种实现方式中，指示RE指示了OFDM符号中是否有URLLC控制信息，包括：
指示RE上的能量值大于等于预设阈值时，OFDM符号中有URLLC控制信息，指示RE上的能量值小于预设阈值时，OFDM符号中没有URLLC控制信息。
其中，接收设备当前所属的通信***的***带宽划分为多个子带，指示RE在多个子带中的一个子带上，这样可以降低接收设备所在小区的邻区的干扰信号对指示RE上的能量值造成的影响。
结合第一方面及其所有实现方式，在另一种实现方式中，在OFDM符号中检测URLLC控制信息之前，还包括：
从发送设备接收指示了指示RE所在的子载波的消息。
结合第一方面及其所有实现方式，在另一种实现方式中，OFDM符号包括接收设备特定的搜索空间，当指示RE指示了OFDM符号中有URLLC控制信息时，URLLC控制信息在搜索空间内。
进一步的，在OFDM符号中检测URLLC控制信息，包括：
在OFDM符号中的搜索空间内检测URLLC控制信息。
结合第一方面及其所有实现方式，在另一种实现方式中，时频资源包括多个OFDM符号，OFDM符号为多个OFDM符号之一，多个OFDM符号中的每个OFDM符号都包括一个指示RE，多个OFDM符号包括多个指示RE，多个指示RE中的每个指示RE都指示了其所在的OFDM符号中是否有URLLC控制信息。进一步的，多个指示RE都在同一个子载波上。多个OFDM符号中的每个OFDM符号中都包括接收设备特定的搜索空间。
本发明实施例第二方面提供了一种从时频资源中接收URLLC数据的方法，应用于一种接收设备，时频资源包括多个OFDM符号，多个OFDM符号中只有部分OFDM符号包括接收设备特定的搜索空间，部分OFDM符号包括第一OFDM符号，第一OFDM符号中的搜索空间包括URLLC控制信息，方法包括：
在第一OFDM符号中的搜索空间内检测URLLC控制信息；
根据URLLC控制信息接收URLLC数据。
URLLC控制信息可以包括URLLC数据的传输参数，例如但不限于：URLLC数据 所占用的时频资源，以及URLLC数据所采用的调制编码方案等，接收设备可以根据该调制编码方案来解调和译码URLLC数据。
本发明实施例提供的URLLC数据接收方法不占用任何时频资源来指示当前符号中是否有URLLC控制信息，更加节省了资源开销，而接收设备也可以根据预设规则快速地从搜索空间内检测URLLC控制信息，带来更低的URLLC数据接收时延。
进一步的，部分OFDM符号包括多个OFDM符号中索引为奇数的OFDM符号，索引为偶数的OFDM符号或索引为3的倍数的OFDM符号。
结合第二方面，在一种实现方式中，多个OFDM符号中除部分OFDM符号以外的其他OFDM符号包括第二OFDM符号，第二OFDM符号的索引为N，第一OFDM符号的索引为N+1，N为正整数，第二OFDM符号包括URLLC数据。
本发明实施例第三方面提供了一种URLLC数据的发送方法，应用于一种发送设备，包括：
为eMBB数据分配时频资源；
通过一个指示资源粒子RE来指示时频资源中的一个OFDM符号中是否有URLLC控制信息，指示RE为OFDM符号中的一个RE，URLLC控制信息包括URLLC数据的传输参数；
在时频资源中发送eMBB数据和URLLC数据。
结合第三方面，在一种实现方式中，通过一个指示RE来指示时频资源中的一个OFDM符号中是否有URLLC控制信息，包括：
通过在指示RE中发送第一数据符号来指示OFDM符号中有URLLC控制信息，通过在指示RE中发送第二数据符号来指示OFDM符号中没有URLLC控制信息。
其中，第一数据符号和第二数据符号为对指示RE上的数据经过低阶调制或高阶调制后得到的。进一步的，低阶调制包括BPSK，第一数据符号为1，第二数据符号为0；或者高阶调制包括16QAM或64QAM，第一数据符号为除第二数据符号以外的任意数据符号。
结合第三方面，在另一种实现方式中，通过一个指示RE来指示时频资源中的一个OFDM符号中是否有URLLC控制信息，包括：
通过在指示RE中发送能量最高的数据符号来指示OFDM符号中有URLLC控制信息，通过在指示RE中不发送任何数据符号来指示OFDM符号中没有URLLC控制信息。
其中，发送设备当前所属的通信***的***带宽划分为多个子带，指示RE在多个子带中的一个子带上。
结合第三方面及其所有实现方式，在另一种实现方式中，在时频资源中发送eMBB数据和URLLC数据之前，还包括：
向接收设备发送指示了指示RE所在的子载波的消息。
结合第三方面及其所有实现方式，在另一种实现方式中，OFDM符号包括接收设备特定的搜索空间，当OFDM符号中有URLLC控制信息时，URLLC控制信息在搜索空间内。
结合第三方面及其所有实现方式，在另一种实现方式中，时频资源包括多个OFDM符号，OFDM符号为多个OFDM符号之一，多个OFDM符号中的每个OFDM符号都包括一个指示RE，多个OFDM符号包括多个指示RE，发送设备通过多个指示RE中的每 个指示RE来指示其所在的OFDM符号中是否有URLLC控制信息。进一步的，多个指示RE都在同一个子载波上。多个OFDM符号中的每个OFDM符号中都包括接收设备特定的搜索空间。
本发明实施例第四方面提供了一种URLLC数据的发送方法，应用于一种发送设备，包括：
为eMBB数据分配时频资源；
通过时频资源发送eMBB数据和URLLC数据，其中，时频资源包括多个OFDM符号，多个OFDM符号中只有部分OFDM符号包括接收设备特定的搜索空间，部分OFDM符号包括第一OFDM符号，第一OFDM符号中的搜索空间包括URLLC控制信息，URLLC控制信息包括URLLC数据的传输参数。
进一步的，部分OFDM符号包括多个OFDM符号中索引为奇数的OFDM符号，索引为偶数的OFDM符号或索引为3的倍数的OFDM符号。
结合第四方面，在一种实现方式中，多个OFDM符号中除部分OFDM符号以外的其他OFDM符号包括第二OFDM符号，第二OFDM符号的索引为N，第一OFDM符号的索引为N+1，N为正整数，第二OFDM符号包括URLLC数据。
本发明实施例第五方面提供了一种接收设备，用于从时频资源中接收URLLC数据，时频资源中包括eMBB数据和URLLC数据，时频资源还包括一个OFDM符号，OFDM符号包括一个指示资源粒子RE，指示RE指示了OFDM符号中是否有URLLC控制信息，接收设备包括：
检测单元，用于当指示RE指示OFDM符号中有URLLC控制信息时，在OFDM符号中检测URLLC控制信息；
第一接收单元，根据检测到的URLLC控制信息接收URLLC数据。
结合第五方面，在一种实现方式中，指示RE指示了OFDM符号中是否有URLLC控制信息，包括：
指示RE中包括第一数据符号时，OFDM符号中有URLLC控制信息，指示RE中包括第二数据符号时，OFDM符号中没有URLLC控制信息。
其中，第一数据符号和第二数据符号为对指示RE上的数据经过低阶调制或高阶调制后得到的。进一步的，低阶调制包括BPSK，第一数据符号为1，第二数据符号为0；或者高阶调制包括16QAM或64QAM，第一数据符号为除第二数据符号以外的任意数据符号。
结合第五方面，在另一种实现方式中，指示RE指示了OFDM符号中是否有URLLC控制信息，包括：
指示RE上的能量值大于等于预设阈值时，OFDM符号中有URLLC控制信息，指示RE上的能量值小于预设阈值时，OFDM符号中没有URLLC控制信息。
其中，接收设备当前所属的通信***的***带宽划分为多个子带，指示RE在多个子带中的一个子带上。
结合第五方面及其所有实现方式，在另一种实现方式中，接收设备还包括：
第二接收单元，用于从发送设备接收指示了指示RE所在的子载波的消息。
结合第五方面及其所有实现方式，在另一种实现方式中，OFDM符号包括接收设备特定的搜索空间，当指示RE指示了OFDM符号中有URLLC控制信息时，URLLC控制 信息在搜索空间内。
其中，检测单元进一步用于在OFDM符号中的搜索空间内检测URLLC控制信息。
结合第五方面及其所有实现方式，在另一种实现方式中，时频资源包括多个OFDM符号，OFDM符号为多个OFDM符号之一，多个OFDM符号中的每个OFDM符号都包括一个指示RE，多个OFDM符号包括多个指示RE，多个指示RE中的每个指示RE都指示了其所在的OFDM符号中是否有URLLC控制信息。进一步的，多个指示RE都在同一个子载波上。多个OFDM符号中的每个OFDM符号中都包括接收设备特定的搜索空间。
本发明实施例第六方面提供了一种接收设备，接收设备用于从时频资源中接收URLLC数据，时频资源包括多个OFDM符号，多个OFDM符号中只有部分OFDM符号包括接收设备特定的搜索空间，部分OFDM符号包括第一OFDM符号，第一OFDM符号中的搜索空间包括URLLC控制信息，接收设备包括：
检测单元，用于在第一OFDM符号中的搜索空间内检测URLLC控制信息；
接收单元，用于根据URLLC控制信息接收URLLC数据。
进一步的，部分OFDM符号包括多个OFDM符号中索引为奇数的OFDM符号，索引为偶数的OFDM符号或索引为3的倍数的OFDM符号。
结合第二方面，在一种实现方式中，多个OFDM符号中除部分OFDM符号以外的其他OFDM符号包括第二OFDM符号，第二OFDM符号的索引为N，第一OFDM符号的索引为N+1，N为正整数，第二OFDM符号包括URLLC数据。
本发明实施例第七方面提供了一种发送设备，包括：
分配单元，用于为eMBB数据分配时频资源；
指示单元，用于通过一个指示资源粒子RE来指示时频资源中的一个OFDM符号中是否有URLLC控制信息，指示RE为OFDM符号中的一个RE，URLLC控制信息包括URLLC数据的传输参数；
第一发送单元，用于在时频资源中发送eMBB数据和URLLC数据。
结合第七方面，在一种实现方式中，指示单元进一步用于：
通过在指示RE中发送第一数据符号来指示OFDM符号中有URLLC控制信息，通过在指示RE中发送第二数据符号来指示OFDM符号中没有URLLC控制信息。
其中，第一数据符号和第二数据符号为对指示RE上的数据经过低阶调制或高阶调制后得到的。进一步的，低阶调制包括BPSK，第一数据符号为1，第二数据符号为0；或者高阶调制包括16QAM或64QAM，第一数据符号为除第二数据符号以外的任意数据符号。
结合第七方面，在另一种实现方式中，指示单元进一步用于：
通过在指示RE中发送能量最高的数据符号来指示OFDM符号中有URLLC控制信息，通过在指示RE中不发送任何数据符号来指示OFDM符号中没有URLLC控制信息。
其中，发送设备当前所属的通信***的***带宽划分为多个子带，指示RE在多个子带中的一个子带上。
结合第七方面及其所有实现方式，在另一种实现方式中，发送设备还包括：
第二发送单元，用于向接收设备发送指示了指示RE所在的子载波的消息。
结合第七方面及其所有实现方式，在另一种实现方式中，OFDM符号包括接收设备 特定的搜索空间，当OFDM符号中有URLLC控制信息时，URLLC控制信息在搜索空间内。
结合第七方面及其所有实现方式，在另一种实现方式中，时频资源包括多个OFDM符号，OFDM符号为多个OFDM符号之一，多个OFDM符号中的每个OFDM符号都包括一个指示RE，多个OFDM符号包括多个指示RE，发送设备通过多个指示RE中的每个指示RE来指示其所在的OFDM符号中是否有URLLC控制信息。进一步的，多个指示RE都在同一个子载波上。多个OFDM符号中的每个OFDM符号中都包括接收设备特定的搜索空间。
本发明实施例第八方面提供了一种发送设备，包括：
分配单元，用于为eMBB数据分配时频资源；
发送单元，用于通过时频资源发送eMBB数据和URLLC数据，其中，时频资源包括多个OFDM符号，多个OFDM符号中只有部分OFDM符号包括接收设备特定的搜索空间，部分OFDM符号包括第一OFDM符号，第一OFDM符号中的搜索空间包括URLLC控制信息，URLLC控制信息包括URLLC数据的传输参数。
进一步的，部分OFDM符号包括多个OFDM符号中索引为奇数的OFDM符号，索引为偶数的OFDM符号或索引为3的倍数的OFDM符号。
结合第八方面，在一种实现方式中，多个OFDM符号中除部分OFDM符号以外的其他OFDM符号包括第二OFDM符号，第二OFDM符号的索引为N，第一OFDM符号的索引为N+1，N为正整数，第二OFDM符号包括URLLC数据。
本发明第九方面提供一种信息传输的装置，该装置包括：存储器、处理器以及收发器，所述存储器存储有计算机指令，所述处理器通过执行所述计算机指令来实现第一方面所述的方法。
本发明第十方面提供一种信息传输的装置，该装置包括：存储器、处理器以及收发器，所述存储器存储有计算机指令，所述处理器通过执行所述计算机指令来实现第二方面所述的方法。
本发明第十一方面提供一种信息传输的装置，该装置包括：存储器、处理器以及收发器，所述存储器存储有计算机指令，所述处理器通过执行所述计算机指令来实现第三方面所述的方法。
本发明第十二方面提供一种信息传输的装置，该装置包括：存储器、处理器以及收发器，所述存储器存储有计算机指令，所述处理器通过执行所述计算机指令来实现第四方面所述的方法。
本发明第十三方面提供了一种存储介质，该存储介质中存储了程序代码，该程序代码被运行时，执行第一方面所述的方法。该存储介质包括但不限于快闪存储器(英文：flash memory)，硬盘(英文：hard disk drive，简称：HDD)或固态硬盘(英文：solid state drive，简称：SSD)。
本发明第十四方面提供了一种存储介质，该存储介质中存储了程序代码，该程序代码被运行时，执行第二方面所述的方法。该存储介质包括但不限于快闪存储器，硬盘或固态硬盘。
本发明第十五方面提供了一种存储介质，该存储介质中存储了程序代码，该程序代码被运行时，执行第三方面所述的方法。该存储介质包括但不限于快闪存储器，硬盘或 固态硬盘。
本发明第十六方面提供了一种存储介质，该存储介质中存储了程序代码，该程序代码被运行时，执行第四方面所述的方法。该存储介质包括但不限于快闪存储器，硬盘或固态硬盘。
本发明实施例提供的URLLC数据接收方法，只使用一个符号中的一个RE来指示当前符号中是否有URLLC控制信息，节省了资源开销，而接收设备也可以在通过指示RE确定当前符号中有URLLC控制信息时，快速的从预设的搜索空间内检测URLLC控制信息，带来更低的URLLC数据接收时延。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍。
图1为使用打孔复用技术实现eMBB和URLLC的时频资源复用的示意图；
图2为本发明实施例适用的一种***架构示意图；
图3为一种URLLC数据接收方法的示意图；
图4为本发明实施例提供的一种URLLC数据发送、接收方法的流程示意图；
图5为本发明实施例提供的一种低阶调制指示示意图；
图6为本发明实施例提供的一种高阶调制指示示意图；
图7为本发明实施例提供的一种划分***带宽的示意图；
图8为本发明实施例提供的一种搜索空间示意图；
图9为本发明实施例提供的另一种URLLC数据发送、接收方法的流程示意图；
图10为本发明实施例提供的一种接收设备的结构示意图；
图11为本发明实施例提供的另一种接收设备的结构示意图；
图12为本发明实施例提供的一种发送设备的结构示意图；
图13为本发明实施例提供的另一种发送设备的结构示意图；
图14为本发明实施例提供的一种信息传输设备的物理结构图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步的详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包括。例如包括了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元，而是可选的还包括没有列出的步骤或单元，或可选的还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
本发明实施例中的信息传输方法可适用于多种***架构。图2为本发明实施例适用的一种***架构示意图。如图2所示，该***架构20中包括发送设备201和接收设备202。发送设备201可通过网络与接收设备202进行信息传输。
本发明实施例中，发送设备可以为基站设备(英文：base station，简称：BS)。基 站设备也可称为基站，是一种部署在无线接入网用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(英文：base transceiver station，简称：BTS)和基站控制器(英文：base station controller，简称：BSC)，3G网络中提供基站功能的设备包括节点B(NodeB)和无线网络控制器(英文：radio network controller，简称：RNC)，在4G网络中提供基站功能的设备包括演进的节点B(英文：evolved NodeB，简称：eNB)，在5G网络中提供基站功能的设备包括新无线节点B(英文：New Radio NodeB，简称：gNB)，集中单元(英文：Centralized Unit，简称：CU)，分布式单元(英文：Distributed Unit)和新无线控制器，在WLAN中，提供基站功能的设备为接入点(英文：Access Point，简称：AP)。
接收设备可以为向用户提供语音和/或数据连通性的设备，包括有线终端和无线终端。无线终端可以是具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备，经无线接入网与一个或多个核心网进行通信的移动终端。例如，无线终端可以为移动电话、计算机、平板电脑、个人数码助理(英文：personal digital assistant，简称：PDA)、移动互联网设备(英文：mobile Internet device，简称：MID)、可穿戴设备和电子书阅读器(英文：e-book reader)等。又如，无线终端也可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动设备。再如，无线终端可以为移动站(英文：mobile station)、接入点(英文：access point)、或用户设备(英文：user equipment，简称：UE)的一部分。
上述***架构适用的通信***包括但不限于：码分多址(英文：Code DivisionMultiple Access，简称：CDMA)IS-95、码分多址(英文：Code DivisionMultiple Access，简称：CDMA)2000、时分同步码分多址(英文：Time Division-Synchronous Code Division Multiple Access，简称：TD-SCDMA)、宽带码分多址(英文：Wideband Code Division Multiple Access，简称：WCDMA)、时分双工-长期演进(英文：Time Division Duplexing-Long Term Evolution，简称：TDD LTE)、频分双工-长期演进(英文：Frequency Division Duplexing-Long Term Evolution，简称：FDD LTE)、长期演进-增强(英文：Long Term Evolution-Advanced，简称：LTE-advanced)，以及未来演进的各种无线通信***(例如，5G***)。
URLLC数据接收依赖于其控制信息，在使用打孔复用技术实现eMBB和URLLC的时频资源复用时，接收设备只要从承载了eMBB数据的时频资源中检测出URLLC数据的控制信息，就可以通过控制信息接收URLLC数据。图3为一种URLLC数据接收方法的示意图，如图所示，该方法通过在eMBB调度周期末尾增加一个控制信道，来指示该eMBB调度周期内URLLC数据的信息，包括：该调度周期内URLLC数据的数量，和每个URLLC数据及其控制信息的时频位置，从而可以实现所有URLLC数据的接收。但是，由于控制信息位于eMBB调度周期的末尾，接收设备必须等到该eMBB调度周期结束以后才能接收到URLLC数据，这会给URLLC数据的接收带来较大的延迟，无法满足URLLC的低时延需求。
图4为本发明实施例提供的一种URLLC数据发送、接收方法的流程示意图，主要包括两部分，第一部分为URLLC控制信息指示，第二部分为根据URLLC控制信息指示来检测URLLC控制信息。URLLC控制信息指示用于指示OFDM符号(以下简称为：符号)上是否有URLLC控制信息，接收设备根据指示，只在有URLLC控制信息的符号中检测URLLC控制信息，从而通过较小的时频资源开销和计算复杂度，快速准确地从时 频资源中检测到URLLC控制信息，进而接收URLLC数据。如图4所述，该URLLC数据发送、接收方法包括如下步骤(除明确说明以外，以下步骤并无时序关系)：
S401：发送设备为eMBB数据分配时频资源(以下简称为时频资源)；
本发明实施例均以一个传输时间间隔(英文：Transmission Time Interval，简称：TTI，也可以称为调度周期、传输周期)的时频资源为例进行说明。
S402：发送设备获取URLLC数据；
发送设备可以从核心网网元、网关、业务服务器等接收URLLC数据，本发明实施例对此不做限定。
S403：发送设备将URLLC数据及其控制信息映射到S401中为eMBB数据分配的时频资源中；
S404：发送设备指示时频资源中的哪些符号中有URLLC控制信息；
本发明实施例提供了三种URLLC控制信息指示方法：1、低阶调制指示方法；2、高阶调制指示方法；3、能量指示方法。三种方法都是通过指示资源粒子(英文：Resource Element，简称：RE)来实现URLLC控制信息指示。时频资源的每个符号中都有一个指示RE，用于指示当前符号(即该指示RE所在的符号，下同)上是否有URLLC控制信息。不同的符号中的指示RE可以位于同一个子载波上，也可以位于不同的子载波上。当发送给一个接收设备的一个URLLC控制信息跨越多个符号中时，可以只在该多个符号的第一个符号的指示RE上指示有URLLC控制信息，以表示URLLC控制信息起始于当前符号。
1、低阶调制指示方法：
图5为本发明实施例提供的一种低阶调制指示示意图。如图5所示，低阶指示是指发送设备对指示RE上发送的数据使用低阶调制技术进行调制，例如二进制相移键控(英文：Binary Phase Shift Keying，简称：BPSK)。具体来说，发送设备对指示RE上发送的数据使用低阶调制技术进行调制后，在指示RE上发送数据符号“1”时，指示当前符号中有URLLC控制信息；发送数据符号“0”时，指示当前符号中没有URLLC控制信息。当接收设备在指示RE上接收到的数据符号是“1”时，即可判断当前符号中有URLLC控制信息；接收到的数据符号是“0”时，即可判断当前符号中没有URLLC控制信息。当URLLC控制信息跨越多个符号时，发送设备可以只在该URLLC控制信息所跨越的多个符号中的第一个符号中的指示RE上发送数据符号“1”，在其他符号中的指示RE上发送数据符号“0”，也可以在该URLLC控制信息所跨越的多个符号中的指示RE上都发送数据符号“1”。本领域技术人员应当理解，发送设备也可以在指示RE上发送数据符号“1”时，指示当前符号中没有URLLC控制信息；发送数据符号“0”时，指示当前符号中有URLLC控制信息。
2、高阶调制指示方法：
图6为本发明实施例提供的一种高阶调制指示示意图。高阶指示是指发送设备对指示RE上发送的数据使用高阶调制技术进行调制，例如16阶正交幅度调制(英文：16-Quadrature Amplitude Modulation，简称：16QAM)或64阶正交幅度调制(英文：64-Quadrature Amplitude Modulation，简称：64QAM)。高阶调制的可靠性低于低阶调制，传输数据时容易发生错误，导致接收设备对当前符号中有无URLLC控制信息产生误判，包括将没有URLLC控制信息判断为有URLLC控制信息，以及将有URLLC控制信息判 断为没有URLLC控制信息。前一种误判会导致接收设备进行一次没有必要的检测，后一种误判会导致接收设备漏检URLLC控制信息，很明显，后一种误判的代价比前一种要高很多。为了尽量避免后一种误判，如图6所示，发送设备对指示RE上发送的数据使用高阶调制技术进行调制后，在指示RE上发送特定的数据符号时(例如：“0000”)，指示当前符号中没有URLLC控制信息；在指示RE上发送除该特定的数据符号以外的其他任意数据符号时(例如：“1111”)，指示当前符号中有URLLC控制信息。当接收设备在指示RE上接收到的数据符号是“0000”时，即可判断当前符号时间上没有URLLC控制信息，当接收到的数据符号是除“0000”外的任意数据符号时，即可判断当前符号时间上有URLLC控制信息。从图6可以看出，当发送设备在指示RE上发送数据符号“1111”来指示当前符号时间上有URLLC控制信息时，即使发生错误导致接收设备解调时将数据符号“1111”误判为其他数据符号(如“1110”)，只要不是误判为“0000”，就可以正确判断出当前符号时间上有URLL控制信息。
3、能量指示方法：
能量指示方法通过指示RE的能量来进行指示，具体来说，当前符号中没有URLLC控制信息时，发送设备在指示RE中不发送任何数据符号，即指示RE的能量为0；当前符号中有URLLC控制信息时，发送设备在指示RE中发送当前调制技术下，能量最高的数据符号，如图6中星座点601对应的数据符号。接收设备测量指示RE的能量值，若指示RE的能量值小于预设阈值，则判断当前符号中没有URLLC控制信息；若指示RE的能量值大于等于该预设阈值，则判断当前符号中有URLLC控制信息，其中预设阈值大于0。之所以预设阈值不为0，是因为即使发送设备在指示RE上不发送任何信号，由于受到噪声和其他小区的干扰，指示RE的能量值也很可能大于0。
图7为本发明实施例提供的一种划分***带宽的示意图。使用能量指示方法时，将一个小区(例如小区70)的用户分为小区中心(例如小区中心701)的用户(以下简称为中心用户)和小区边缘(例如小区边缘702)的用户(以下简称为边缘用户)，如果发送设备所在小区的相邻小区的边缘用户在和指示RE相同频率的RE上接收数据时，指示RE上会叠加该RE上的能量，造成指示RE的能量值增高，进而造成接收设备的误判，例如将没有URLLC控制信息判断为有URLLC控制信息。为了降低接收设备误判的概率，如图7所示，可以将发送设备和/或接收设备所属***的整个***带宽划分为三个子带：子带1、子带2和子带3，相邻三个小区中各个小区的边缘用户分别使用该三个子带中的一个子带的频率进行数据传输，相邻三个小区中各个小区的中心用户使用整个***带宽。任意两个相邻小区的边缘用户都使用不同的子带，各个小区使用当前小区的边缘用户使用的子带上的RE来作为指示RE，例如，小区70使用子带3上的RE作为指示RE，同时小区71的边缘用户使用子带2上的RE接收数据，这样，小区71的边缘用户在和小区70使用的指示RE不同频率的RE中接收数据，从而降低在使用能量指示方法时接收设备误判的概率。
可选的，使用上述三种方法来指示URLLC控制信息时，对于每个小区，发送设备可以在主信息块(英文：Master Information Block，简称：MIB)或***信息块(英文：System Information Block，简称：SIB)的一个字段中，携带指示RE的频域位置信息，然后通过MIB或SIB将指示RE的频域位置信息发送给小区的所有接收设备。发送设备可以在图4所示方法的最开始就执行此步骤。
S405：发送设备在时频资源中发送eMBB数据和URLLC数据；
S406：接收设备根据指示RE判断该时频资源中是否有URLLC控制信息；
可参考S404中关于接收设备如何判断时频资源中是否有URLLC控制信息的描述，此处不再赘述。
S407：接收设备在有URLLC控制信息的符号中检测该URLLC控制信息；
在LTE***中，下行控制信息(英文：Downlink Control Information，简称：DCI)通过物理下行控制信道(英文：Physical Downlink Control Channel，简称：PDCCH)发送，DCI有多种类型(format)，不同类型的DCI大小也可能不同，承载DCI的基本单元是控制信道单元(英文：Control Channel Element，简称：CCE)，一个CCE包括36个RE。接收设备在接收DCI时，并不知道当前PDCCH上发送的是什么类型的DCI，也不知道自己需要的信息在哪个位置，但接收设备知道自己当前的期望信息，对于不同的期望信息，接收设备使用相应的无线网络临时标识(英文：Radio Network Temporary Identity，简称：RNTI)和CCE阶数做CRC校验，如果CRC校验成功，接收设备就确定该CCE信息是自己需要的，也可以确定相应的DCI类型和调制方式，进而解出DCI内容，这就是LTE***中的DCI盲检过程。
为了提高盲检的效率，LTE***引入了搜索空间的概念，将DCI限定在搜索空间内，接收设备只需要在搜索空间内盲检DCI。对于一些DCI类型，例如寻呼(paging)，所有的接收设备都需要监听，而对于另一些DCI类型，例如上下行调度指令，则只和特定的接收设备相关，只有特定的接收设备需要监听，因此LTE***中还划分了公共搜索空间(Common Search Space)和UE特定搜索空间(UE-Specific Search Space)，以进一步提高接收设备的盲检效率。
LTE***中的搜索空间位于时频资源的控制区域，URLLC控制信息却位于时频资源的数据区域，因此，本发明实施例定义了一种新的搜索空间。对于一个小区中的每一个接收设备，其在时频资源的数据区域的每个符号中都有该接收设备特定的一个或者部分搜索空间。之所以表述为“一个或者部分搜索空间”，是因为可能存在一个搜索空间在多个连续的符号中的情况。图8为本发明实施例提供的一种搜索空间示意图，如图8所示，搜索空间1-8分别位于第1-8个符号中，搜索空间9位于第9和第10个符号中，搜索空间10位于第10和第11个符号中，搜索空间1-10都是一个接收设备特定的搜索空间。
接收设备可以通过特定的映射算法来得到其在时频资源的数据区域的每个符号中的搜索空间的频域位置(例如但不限于：参考LTE***中，通过接收设备的无线网络临时标识(英文：Radio Network Temporary Identity，简称：RNTI)和当前子帧号来计算搜索空间的频域位置)，发送设备在将获取到的URLLC数据映射到时频资源中时，会将URLLC控制信息携带在接收设备特定的搜索空间内，这样，接收设备就可以先确定哪些符号中有URLLC控制信息，然后在有URLLC控制信息的符号中的特定搜索空间内进行检测，从而提高URLLC控制信息的检测速度。接收设备在检测时可以使用现有的LTE***中的DCI盲检方法，也可以使用其他方法，本发明实施例对此不做限定。
S408：接收设备根据检测到的URLLC控制信息接收URLLC数据。
接收设备可以从检测到的URLLC控制信息获知URLLC数据的传输参数，并据此来接收URLLC数据。
相比于现有技术，本发明实施例提供的URLLC数据发送、接收方法只使用一个符号中的一个RE来指示当前符号中是否有URLLC控制信息，节省了资源开销，而接收设备也可以在通过指示RE确定当前符号中有URLLC控制信息时，快速的从预设的搜索空间内检测URLLC控制信息，带来更低的URLLC数据接收时延。
图9为本发明实施例提供的另一种URLLC数据发送、接收方法的流程示意图，在这种方法中，发送设备不指示时频资源中哪些符号中有URLLC控制信息，而是按照预设规则，将URLLC控制信息携带在时频资源的部分符号中发送，相应地，接收设备也只在该部分符号中检测URLLC控制信息。如图9所示，该URLLC数据发送、接收方法包括如下步骤(除明确说明以外，以下步骤并无时序关系)：
S901：发送设备为eMBB数据分配时频资源(以下简称为时频资源)；
本发明实施例均以一个传输时间间隔(英文：Transmission Time Interval，简称：TTI，也可以称为调度周期、传输周期)的时频资源为例进行说明。
S902：发送设备获取URLLC数据；
发送设备可以从核心网网元、网关、业务服务器等接收URLLC数据，本发明实施例对此不做限定。
S903：发送设备将URLLC数据及其控制信息映射到S901中为eMBB数据分配的时频资源中；
本发明实施例中，发送设备按照预设规则，将URLLC控制信息映射到时频资源的部分符号中，例如但不限于：将URLLC控制信息映射到索引为奇数(第1、3、5…个符号)、索引为偶数(第2、4、6…个符号)或索引为3的倍数(第3、6、9…个符号)的符号中。
对于每个小区，发送设备可以在MIB或SIB的一个字段中，携带URLLC控制信息的时域位置信息(即哪部分符号中有URLLC控制信息，或者说，发送设备基于什么样的规则来映射URLLC控制信息)，然后通过MIB或SIB将URLLC控制信息的时域位置信息发送给小区的所有接收设备。发送设备可以在图9所示方法的最开始就执行此步骤。
S904：发送设备在时频资源中发送eMBB数据和URLLC数据；
S905：接收设备在有URLLC控制信息的符号中检测URLLC控制信息；
本发明实施例在图8所示的搜索空间设计的基础上，进一步将搜索空间的位置限定在URLLC控制信息所在的符号中，例如但不限于：当发送设备将URLLC控制信息携带在索引为奇数、索引为偶数或索引为3的倍数的符号中发送时，接收设备特定的搜索空间也分别位于索引为奇数、索引为偶数或索引为3的倍数的符号中。当一个搜索空间在多个连续的符号中时，本发明实施例可以将该搜索空间的起始符号限定在URLLC控制信息所在的符号中，例如：当发送设备将URLLC控制信息携带在索引为奇数的符号中发送时，该搜索空间的起始符号可以为第1、3、5…个符号，若该搜索空间在2个连续的符号中，则接收设备会在第1和第2个符号中的该搜索空间内检测URLLC控制信息。
S906：接收设备根据检测到的URLLC控制信息接收URLLC数据。
接收设备可以从检测到的URLLC控制信息获知URLLC数据的传输参数(例如但不限于：URLLC数据所占用的时频资源，以及URLLC数据所采用的调制编码方案等，接收设备可以根据该调制编码方案来解调和译码URLLC数据)，并据此来接收URLLC 数据。
本发明实施例中，按照预设规则将控制信息携带在部分符号中发送，例如只在索引为奇数的符号中发送URLLC控制信息时，可能会出现URLLC数据的接收延迟情况。因为URLLC数据的低时延特性，发送设备随时会将URLLC数据打孔在承载了eMBB数据的时频资源中，例如，URLLC数据需要在第6个符号中发送，但基于规则，URLLC控制信息又只在索引为奇数的符号中发送，则URLLC数据只能等到在第7个符号中和控制信息一起发送，造成1个符号的延迟。为了避免延迟，本发明实施例中可以先发送数据，再发送数据的控制信息，在前述例子中，就可以直接在第6个符号中发送URLLC数据，然后在第7个符号中发送该URLLC数据的控制信息，以避免URLLC数据的接收时延。
相比于现有技术，本发明实施例提供的URLLC数据发送、接收方法不占用任何时频资源来指示当前符号中是否有URLLC控制信息，更加节省了资源开销，而接收设备也可以快速地从预设的搜索空间内检测URLLC控制信息，带来更低的URLLC数据接收时延。
图10为本发明实施例提供的一种接收设备的结构示意图。该接收设备100用于执行如图4所示的接收设备侧的方法，从时频资源中接收URLLC数据。时频资源中包括eMBB数据和URLLC数据，时频资源还包括一个OFDM符号，OFDM符号包括一个指示资源粒子RE，指示RE指示了OFDM符号中是否有URLLC控制信息，接收设备包括：
检测单元1001，用于当指示RE指示OFDM符号中有URLLC控制信息时，在OFDM符号中检测URLLC控制信息；
第一接收单元1002，用于根据检测到的URLLC控制信息接收URLLC数据。
可选的，接收设备还包括第二接收单元1003，用于从发送设备接收指示了指示RE所在的子载波的消息。
可选的，检测单元1001进一步用于在OFDM符号中的搜索空间内检测URLLC控制信息。
图11为本发明实施例提供的另一种接收设备的结构示意图。该接收设备110用于执行如图9所示的接收设备侧的方法，从时频资源中接收URLLC数据。时频资源包括多个OFDM符号，多个OFDM符号中只有部分OFDM符号包括接收设备特定的搜索空间，部分OFDM符号包括第一OFDM符号，第一OFDM符号中的搜索空间包括URLLC控制信息，此时：
检测单元1101，用于在第一OFDM符号中的搜索空间内检测URLLC控制信息；
接收单元1102，用于根据URLLC控制信息接收URLLC数据。
图12为本发明实施例提供的一种发送设备的结构示意图。该发送设备120用于执行如图4所示的发送设备侧的方法，包括：
分配单元1201，用于为eMBB数据分配时频资源；
指示单元1202，用于通过一个指示资源粒子RE来指示时频资源中的一个OFDM符号中是否有URLLC控制信息，指示RE为OFDM符号中的一个RE，URLLC控制信息包括URLLC数据的传输参数；
第一发送单元1203，用于在时频资源中发送eMBB数据和URLLC数据。
可选的，指示单元1202进一步用于通过在指示RE中发送第一数据符号来指示 OFDM符号中有URLLC控制信息，通过在指示RE中发送第二数据符号来指示OFDM符号中没有URLLC控制信息。
可选的，指示单元1202进一步用于通过在指示RE中发送能量最高的数据符号来指示OFDM符号中有URLLC控制信息，通过在指示RE中不发送任何数据符号来指示OFDM符号中没有URLLC控制信息。
可选的，发送设备120还包括第二发送单元1204，用于向接收设备发送指示了指示RE所在的子载波的消息。
图13为本发明实施例提供的另一种发送设备的结构示意图。该发送设备130用于执行如图9所示的发送设备侧的方法，包括：
分配单元1301，用于为eMBB数据分配时频资源；
发送单元1302，用于通过时频资源发送eMBB数据和URLLC数据，其中，时频资源包括多个OFDM符号，多个OFDM符号中只有部分OFDM符号包括接收设备特定的搜索空间，部分OFDM符号包括第一OFDM符号，第一OFDM符号中的搜索空间包括URLLC控制信息，URLLC控制信息包括URLLC数据的传输参数。
图14为本发明实施例提供的一种信息传输设备的物理结构图。该设备140可以用于执行如图4所示的发送设备侧或接收设备侧的方法，或如图9所示的发送设备侧或接收设备侧的方法。该设备140包括：存储器1401、处理器1402、收发器1403和总线***1404。
其中，存储器1401，用于存放程序。具体地，程序可以包括程序代码，程序代码包括计算机操作指令。存储器1401可能为随机存取存储器(random access memory，简称RAM)，也可能为非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。图中仅示出了一个存储器，当然，存储器也可以根据需要，设置为多个。存储器1401也可以是处理器1402中的存储器。
存储器1401存储了如下的元素，可执行模块或者数据结构，或者它们的子集，或者它们的扩展集：
操作指令：包括各种操作指令，用于实现各种操作。
操作***：包括各种***程序，用于实现各种基础业务以及处理基于硬件的任务。
处理器1402控制设备140的操作，处理器1402还可以称为CPU(Central Processing Unit，中央处理单元)。具体的应用中，设备140的各个组件通过总线***1404耦合在一起，其中总线***1404除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线***1404。为便于表示，图14中仅是示意性画出。
上述本申请实施例揭示的方法可以应用于处理器1402中，或者由处理器1402实现。处理器1402可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1402中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1402可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中 的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1401，处理器1402读取存储器1401中的信息，结合其硬件执行以上方法步骤。
本领域技术人员可以理解，在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。

Claims (58)

  1. 一种从时频资源中接收高可靠低时延通信URLLC数据的方法，应用于一种接收设备，其特征在于，所述时频资源中包括增强型移动宽带eMBB数据和所述URLLC数据，所述时频资源还包括一个正交频分复用OFDM符号，所述OFDM符号包括一个指示资源粒子RE，所述指示RE指示了所述OFDM符号中是否有URLLC控制信息，所述方法包括：
    当所述指示RE指示所述OFDM符号中有所述URLLC控制信息时，在所述OFDM符号中检测所述URLLC控制信息；
    根据检测到的所述URLLC控制信息接收所述URLLC数据。
  2. 根据权利要求1所述的方法，其特征在于，所述指示RE指示了所述OFDM符号中是否有所述URLLC控制信息，包括：
    所述指示RE中包括第一数据符号时，所述OFDM符号中有所述URLLC控制信息，所述指示RE中包括第二数据符号时，所述OFDM符号中没有所述URLLC控制信息。
  3. 根据权利要求2所述的方法，其特征在于，所述第一数据符号和第二数据符号为对所述指示RE上的数据经过低阶调制或高阶调制后得到的。
  4. 根据权利要求3所述的方法，其特征在于，
    所述低阶调制包括BPSK，所述第一数据符号为1，所述第二数据符号为0；或者
    所述高阶调制包括16QAM或64QAM，所述第一数据符号为除所述第二数据符号以外的任意数据符号。
  5. 根据权利要求1所述的方法，其特征在于，所述指示RE指示了所述OFDM符号中是否有所述URLLC控制信息，包括：
    所述指示RE上的能量值大于等于预设阈值时，所述OFDM符号中有所述URLLC控制信息，所述指示RE上的能量值小于预设阈值时，所述OFDM符号中没有所述URLLC控制信息。
  6. 根据权利要求5所述的方法，其特征在于，所述接收设备当前所属的通信***的***带宽划分为多个子带，所述指示RE在所述多个子带中的一个子带上。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述在所述OFDM符号中检测所述URLLC控制信息之前，还包括：
    从发送设备接收指示了所述指示RE所在的子载波的消息。
  8. 根据权利要求1-7任一项所述的方法，其特征在于，所述OFDM符号包括所述接收设备特定的搜索空间，当所述指示RE指示了所述OFDM符号中有所述URLLC控制信息时，所述URLLC控制信息在所述搜索空间内。
  9. 根据权利要求8所述的方法，其特征在于，所述在所述OFDM符号中检测所述URLLC控制信息，包括：
    在所述OFDM符号中的所述搜索空间内检测所述URLLC控制信息。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述时频资源包括多个OFDM符号，所述OFDM符号为所述多个OFDM符号之一，所述多个OFDM符号中的每个OFDM符号都包括一个指示RE，所述多个OFDM符号包括多个指示RE，所述多个指示RE中的每个指示RE都指示了其所在的OFDM符号中是否有URLLC控制信息。
  11. 根据权利要求10所述的方法，其特征在于，所述多个指示RE都在同一个子载 波上。
  12. 根据权利要求10或11所述的方法，其特征在于，所述多个OFDM符号中的每个OFDM符号中都包括所述接收设备特定的搜索空间。
  13. 一种从时频资源中接收高可靠低时延通信URLLC数据的方法，应用于一种接收设备，其特征在于，所述时频资源包括多个正交频分复用OFDM符号，所述多个OFDM符号中只有部分OFDM符号包括所述接收设备特定的搜索空间，所述部分OFDM符号包括第一OFDM符号，所述第一OFDM符号中的所述搜索空间包括URLLC控制信息，所述方法包括：
    在所述第一OFDM符号中的所述搜索空间内检测所述URLLC控制信息；
    根据所述URLLC控制信息接收所述URLLC数据。
  14. 根据权利要求13所述的方法，其特征在于，所述部分OFDM符号包括所述多个OFDM符号中索引为奇数的OFDM符号，索引为偶数的OFDM符号或索引为3的倍数的OFDM符号。
  15. 根据权利要求13或14所述的方法，其特征在于，所述多个OFDM符号中除所述部分OFDM符号以外的其他OFDM符号包括第二OFDM符号，所述第二OFDM符号的索引为N，所述第一OFDM符号的索引为N+1，N为正整数，所述第二OFDM符号包括所述URLLC数据。
  16. 一种高可靠低时延通信URLLC数据的发送方法，应用于一种发送设备，其特征在于，包括：
    为增强型移动宽带eMBB数据分配时频资源；
    通过一个指示资源粒子RE来指示所述时频资源中的一个正交频分复用OFDM符号中是否有URLLC控制信息，所述指示RE为所述OFDM符号中的一个RE，所述URLLC控制信息包括所述URLLC数据的传输参数；
    在所述时频资源中发送所述eMBB数据和所述URLLC数据。
  17. 根据权利要求16所述的方法，其特征在于，所述通过一个指示RE来指示所述时频资源中的一个OFDM符号中是否有URLLC控制信息，包括：
    通过在所述指示RE中发送第一数据符号来指示所述OFDM符号中有所述URLLC控制信息，通过在所述指示RE中发送第二数据符号来指示所述OFDM符号中没有所述URLLC控制信息。
  18. 根据权利要求17所述的方法，其特征在于，所述第一数据符号和第二数据符号为对所述指示RE上的数据经过低阶调制或高阶调制后得到的。
  19. 根据权利要求18所述的方法，其特征在于，
    所述低阶调制包括BPSK，所述第一数据符号为1，所述第二数据符号为0；或者
    所述高阶调制包括16QAM或64QAM，所述第一数据符号为除所述第二数据符号以外的任意数据符号。
  20. 根据权利要求16所述的方法，其特征在于，所述通过一个指示RE来指示所述时频资源中的一个OFDM符号中是否有URLLC控制信息，包括：
    通过在所述指示RE中发送能量最高的数据符号来指示所述OFDM符号中有所述URLLC控制信息，通过在所述指示RE中不发送任何数据符号来指示所述OFDM符号中没有所述URLLC控制信息。
  21. 根据权利要求20所述的方法，其特征在于，所述发送设备当前所属的通信***的***带宽划分为多个子带，所述指示RE在所述多个子带中的一个子带上。
  22. 根据权利要求16-21任一项所述的方法，其特征在于，所述在所述时频资源中发送所述eMBB数据和所述URLLC数据之前，还包括：
    向接收设备发送指示了所述指示RE所在的子载波的消息。
  23. 根据权利要求16所述的方法，其特征在于，所述OFDM符号包括接收设备特定的搜索空间，当所述OFDM符号中有所述URLLC控制信息时，所述URLLC控制信息在所述搜索空间内。
  24. 根据权利要求16-23任一项所述的方法，其特征在于，所述时频资源包括多个OFDM符号，所述OFDM符号为所述多个OFDM符号之一，所述多个OFDM符号中的每个OFDM符号都包括一个指示RE，所述多个OFDM符号包括多个指示RE，所述发送设备通过多个指示RE中的每个指示RE来指示其所在的OFDM符号中是否有URLLC控制信息。
  25. 根据权利要求24所述的方法，其特征在于，所述多个指示RE都在同一个子载波上。
  26. 根据权利要求24或25所述的方法，其特征在于，所述多个OFDM符号中的每个OFDM符号中都包括接收设备特定的搜索空间。
  27. 一种高可靠低时延通信URLLC数据的发送方法，应用于一种发送设备，其特征在于，包括：
    为增强型移动宽带eMBB数据分配时频资源；
    通过所述时频资源发送所述eMBB数据和所述URLLC数据，其中，所述时频资源包括多个正交频分复用OFDM符号，所述多个OFDM符号中只有部分OFDM符号包括接收设备特定的搜索空间，所述部分OFDM符号包括第一OFDM符号，所述第一OFDM符号中的所述搜索空间包括URLLC控制信息，所述URLLC控制信息包括所述URLLC数据的传输参数。
  28. 根据权利要求27所述的方法，其特征在于，所述部分OFDM符号包括所述多个OFDM符号中索引为奇数的OFDM符号，索引为偶数的OFDM符号或索引为3的倍数的OFDM符号。
  29. 根据权利要求27或28所述的方法，其特征在于，所述多个OFDM符号中除所述部分OFDM符号以外的其他OFDM符号包括第二OFDM符号，所述第二OFDM符号的索引为N，所述第一OFDM符号的索引为N+1，N为正整数，所述第二OFDM符号包括所述URLLC数据。
  30. 一种接收设备，其特征在于，所述接收设备用于从时频资源中接收高可靠低时延通信URLLC数据，所述时频资源中包括增强型移动宽带eMBB数据和所述URLLC数据，所述时频资源还包括一个正交频分复用OFDM符号，所述OFDM符号包括一个指示资源粒子RE，所述指示RE指示了所述OFDM符号中是否有URLLC控制信息，所述接收设备包括：
    检测单元，用于当所述指示RE指示所述OFDM符号中有所述URLLC控制信息时，在所述OFDM符号中检测所述URLLC控制信息；
    第一接收单元，根据检测到的所述URLLC控制信息接收所述URLLC数据。
  31. 根据权利要求30所述的接收设备，其特征在于，所述指示RE指示了所述OFDM符号中是否有所述URLLC控制信息，包括：
    所述指示RE中包括第一数据符号时，所述OFDM符号中有所述URLLC控制信息，所述指示RE中包括第二数据符号时，所述OFDM符号中没有所述URLLC控制信息。
  32. 根据权利要求31所述的接收设备，其特征在于，所述第一数据符号和第二数据符号为对所述指示RE上的数据经过低阶调制或高阶调制后得到的。
  33. 根据权利要求32所述的接收设备，其特征在于，
    所述低阶调制包括BPSK，所述第一数据符号为1，所述第二数据符号为0；或者
    所述高阶调制包括16QAM或64QAM，所述第一数据符号为除所述第二数据符号以外的任意数据符号。
  34. 根据权利要求30所述的接收设备，其特征在于，所述指示RE指示了所述OFDM符号中是否有所述URLLC控制信息，包括：
    所述指示RE上的能量值大于等于预设阈值时，所述OFDM符号中有所述URLLC控制信息，所述指示RE上的能量值小于预设阈值时，所述OFDM符号中没有所述URLLC控制信息。
  35. 根据权利要求34所述的接收设备，其特征在于，所述接收设备当前所属的通信***的***带宽划分为多个子带，所述指示RE在所述多个子带中的一个子带上。
  36. 根据权利要求30-35任一项所述的接收设备，其特征在于，所述接收设备还包括：
    第二接收单元，用于从发送设备接收指示了所述指示RE所在的子载波的消息。
  37. 根据权利要求30-36任一项所述的接收设备，其特征在于，所述OFDM符号包括所述接收设备特定的搜索空间，当所述指示RE指示了所述OFDM符号中有所述URLLC控制信息时，所述URLLC控制信息在所述搜索空间内。
  38. 根据权利要求37所述的接收设备，其特征在于，所述检测单元进一步用于在所述OFDM符号中的所述搜索空间内检测所述URLLC控制信息。
  39. 根据权利要求30-38任一项所述的接收设备，其特征在于，所述时频资源包括多个OFDM符号，所述OFDM符号为所述多个OFDM符号之一，所述多个OFDM符号中的每个OFDM符号都包括一个指示RE，所述多个OFDM符号包括多个指示RE，所述多个指示RE中的每个指示RE都指示了其所在的OFDM符号中是否有URLLC控制信息。
  40. 根据权利要求39所述的接收设备，其特征在于，所述多个指示RE都在同一个子载波上。
  41. 根据权利要求39或40所述的接收设备，其特征在于，所述多个OFDM符号中的每个OFDM符号中都包括所述接收设备特定的搜索空间。
  42. 一种接收设备，其特征在于，所述接收设备用于从时频资源中接收高可靠低时延通信URLLC数据，所述时频资源包括多个正交频分复用OFDM符号，所述多个OFDM符号中只有部分OFDM符号包括所述接收设备特定的搜索空间，所述部分OFDM符号包括第一OFDM符号，所述第一OFDM符号中的所述搜索空间包括URLLC控制信息，所述接收设备包括：
    检测单元，用于在所述第一OFDM符号中的所述搜索空间内检测所述URLLC控制 信息；
    接收单元，用于根据所述URLLC控制信息接收所述URLLC数据。
  43. 根据权利要求42所述的接收设备，其特征在于，所述部分OFDM符号包括所述多个OFDM符号中索引为奇数的OFDM符号，索引为偶数的OFDM符号或索引为3的倍数的OFDM符号。
  44. 根据权利要求42或43所述的接收设备，其特征在于，所述多个OFDM符号中除所述部分OFDM符号以外的其他OFDM符号包括第二OFDM符号，所述第二OFDM符号的索引为N，所述第一OFDM符号的索引为N+1，N为正整数，所述第二OFDM符号包括所述URLLC数据。
  45. 一种发送设备，其特征在于，包括：
    分配单元，用于为增强型移动宽带eMBB数据分配时频资源；
    指示单元，用于通过一个指示资源粒子RE来指示所述时频资源中的一个正交频分复用OFDM符号中是否有高可靠低时延通信URLLC控制信息，所述指示RE为所述OFDM符号中的一个RE，所述URLLC控制信息包括URLLC数据的传输参数；
    第一发送单元，用于在所述时频资源中发送所述eMBB数据和所述URLLC数据。
  46. 根据权利要求45所述的发送设备，其特征在于，所述指示单元进一步用于：
    通过在所述指示RE中发送第一数据符号来指示所述OFDM符号中有所述URLLC控制信息，通过在所述指示RE中发送第二数据符号来指示所述OFDM符号中没有所述URLLC控制信息。
  47. 根据权利要求46所述的发送设备，其特征在于，所述第一数据符号和第二数据符号为对所述指示RE上的数据经过低阶调制或高阶调制后得到的。
  48. 根据权利要求47所述的发送设备，其特征在于，
    所述低阶调制包括BPSK，所述第一数据符号为1，所述第二数据符号为0；或者
    所述高阶调制包括16QAM或64QAM，所述第一数据符号为除所述第二数据符号以外的任意数据符号。
  49. 根据权利要求45所述的发送设备，其特征在于，所述指示单元进一步用于：
    通过在所述指示RE中发送能量最高的数据符号来指示所述OFDM符号中有所述URLLC控制信息，通过在所述指示RE中不发送任何数据符号来指示所述OFDM符号中没有所述URLLC控制信息。
  50. 根据权利要求49所述的发送设备，其特征在于，所述发送设备当前所属的通信***的***带宽划分为多个子带，所述指示RE在所述多个子带中的一个子带上。
  51. 根据权利要求45-49任一项所述的发送设备，其特征在于，所述发送设备还包括：
    第二发送单元，用于向接收设备发送指示了所述指示RE所在的子载波的消息。
  52. 根据权利要求45所述的发送设备，其特征在于，所述OFDM符号包括接收设备特定的搜索空间，当所述OFDM符号中有所述URLLC控制信息时，所述URLLC控制信息在所述搜索空间内。
  53. 根据权利要求45-52任一项所述的发送设备，其特征在于，所述时频资源包括多个OFDM符号，所述OFDM符号为所述多个OFDM符号之一，所述多个OFDM符号中的每个OFDM符号都包括一个指示RE，所述多个OFDM符号包括多个指示RE，所 述发送设备通过多个指示RE中的每个指示RE来指示其所在的OFDM符号中是否有URLLC控制信息。
  54. 根据权利要求53所述的发送设备，其特征在于，所述多个指示RE都在同一个子载波上。
  55. 根据权利要求53或54所述的发送设备，其特征在于，所述多个OFDM符号中的每个OFDM符号中都包括接收设备特定的搜索空间。
  56. 一种发送设备，其特征在于，包括：
    分配单元，用于为增强型移动宽带eMBB数据分配时频资源；
    发送单元，用于通过所述时频资源发送所述eMBB数据和高可靠低时延通信URLLC数据，其中，所述时频资源包括多个正交频分复用OFDM符号，所述多个OFDM符号中只有部分OFDM符号包括接收设备特定的搜索空间，所述部分OFDM符号包括第一OFDM符号，所述第一OFDM符号中的所述搜索空间包括URLLC控制信息，所述URLLC控制信息包括所述URLLC数据的传输参数。
  57. 根据权利要求56所述的发送设备，其特征在于，所述部分OFDM符号包括所述多个OFDM符号中索引为奇数的OFDM符号，索引为偶数的OFDM符号或索引为3的倍数的OFDM符号。
  58. 根据权利要求56或57所述的发送设备，其特征在于，所述多个OFDM符号中除所述部分OFDM符号以外的其他OFDM符号包括第二OFDM符号，所述第二OFDM符号的索引为N，所述第一OFDM符号的索引为N+1，N为正整数，所述第二OFDM符号包括所述URLLC数据。
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