WO2020048426A1 - 数据传输方法、装置、设备及存储介质 - Google Patents

数据传输方法、装置、设备及存储介质 Download PDF

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Publication number
WO2020048426A1
WO2020048426A1 PCT/CN2019/104053 CN2019104053W WO2020048426A1 WO 2020048426 A1 WO2020048426 A1 WO 2020048426A1 CN 2019104053 W CN2019104053 W CN 2019104053W WO 2020048426 A1 WO2020048426 A1 WO 2020048426A1
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dci
detection period
target
dci detection
time
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PCT/CN2019/104053
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English (en)
French (fr)
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李军
罗之虎
铁晓磊
金哲
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华为技术有限公司
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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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a data transmission method, device, device, and storage medium.
  • Multicast services are widely used in wireless communication systems.
  • single-cell point-to-multipoint (English: Single Cell Point to Multi-point; SC-PTM) service is a common multicast service.
  • SC-PTM Single Cell Point to Multi-point
  • the application of multicast services in narrowband Internet of Things English: Narrow Internet and Internet of Things; NB-IoT for short
  • NB-IoT Narrow Internet and Internet of Things
  • the data of the multicast service is usually transmitted in the form of a transport block (English: Transport Block; abbreviation: TB) in a physical downlink shared channel (English: Physical Downlink Shared Channel (abbreviation: PDSCH)), and the user equipment (English: User; Equipment; The abbreviation: UE) usually needs to receive the transmission block carried on the PDSCH under the scheduling of downlink control information (English: Downlink Control Information).
  • a transport block English: Transport Block; abbreviation: TB
  • PDSCH Physical Downlink Shared Channel
  • UE downlink Control Information
  • the UE when receiving a transmission block of a group message service, the UE needs to receive DCI in each search space (English: Search Space; SS for short), and according to the DCI received in each search space Receive the transport block in the multicast service.
  • search space English: Search Space; SS for short
  • the method of receiving DCI in each search space and receiving the transmission block in the multicast service according to the DCI received in each search space will affect the data transmission efficiency of the multicast service.
  • the embodiments of the present application provide a data transmission method, device, device, and storage medium, which can improve data transmission efficiency of a multicast service.
  • the technical solution is as follows:
  • a data transmission method includes:
  • a first DCI detection period is determined according to the instruction information, the first DCI detection period includes n second DCI detection periods, and a search space exists in each of the second DCI detection periods, where n is greater than or equal to 2 Positive integer
  • m is a positive integer.
  • receiving the m first transmission blocks in the first DCI detection period according to the first DCI received in a search space of the first target DCI detection period includes:
  • the scheduling information in the first DCI includes transmission block repetition number information, scheduling delay information, and resource allocation information, and the scheduling information in the first DCI and the first DCI in the The time-frequency position in the search space of the first target DCI detection period, and determining the time-frequency position of each of the m first transmission blocks includes:
  • the time-frequency position of the first DCI in a search space of the first target DCI detection cycle is based on the transmission block repetition number information, the scheduling delay information, the resource allocation information, and the first DCI. Determining the time-frequency position of each of the m first transmission blocks includes:
  • the interval is determined according to the scheduling delay information, 1 ⁇ i ⁇ m;
  • the target time-frequency position in the i-th second target DCI detection period is located in a search space, and the position of the target time-frequency position in the search space in the second target DCI detection period is the same as the position
  • the first DCI has the same time-frequency position in the search space of the first target DCI detection period
  • the second target DCI detection period is one of the n second DCI detection periods
  • the second target DCI does not overlap in time domain with any one of the m first transmission blocks.
  • the scheduling information in the first DCI further includes DCI subframe repetition times information, and according to the transmission block repetition times information, the scheduling delay information, the resource allocation information, and the first
  • the time-frequency position of the DCI in the search space of the first target DCI detection period, and determining the time-frequency position of each of the m first transmission blocks includes:
  • the time domain interval, the scheduling delay information, and the DCI subframe repetition number information are determined, and the length of each first transmission block in the time domain is determined according to the transmission block repetition number information and the resource allocation information. , 1 ⁇ j ⁇ m;
  • the interval between the first first transmission block and the first DCI in the time domain is determined according to the scheduling delay information.
  • the method further includes:
  • the third target DCI detection period is one of the n second detection periods, and the third target DCI detection period does not overlap the first target DCI detection period.
  • each of the first transmission blocks carries data of a multicast communication service.
  • a data transmission method includes:
  • the indication information is used to indicate a first DCI detection period
  • the first DCI detection period includes n second DCI detection periods, and a search space exists in each of the second DCI detection periods, n is a positive integer greater than or equal to 2;
  • Send a first DCI in a search space of a first target DCI detection cycle the first DCI being used to schedule the m first transmission blocks, and the first target DCI detection cycle is the n second DCI detections One of the cycles.
  • the scheduling information in the first DCI and the time-frequency position of the first DCI in a search space of the first target DCI detection period are used to indicate each of the m first transmission blocks. Time-frequency position of the first transmission block.
  • the scheduling information in the first DCI includes transmission block repetition number information, scheduling delay information, and resource allocation information;
  • the transmission block repetition number information, the scheduling delay information, the resource allocation information, and time-frequency positions of the first DCI in a search space of the first target DCI detection period are used to indicate the m number of The time-frequency position of each first transmission block in the first transmission block.
  • an interval in the time domain between the i-th first transport block and the i-th second target DCI detection period in the m first transmission blocks is determined by the scheduling delay information. Indication, 1 ⁇ i ⁇ m;
  • the target time-frequency position in the i-th second target DCI detection period is located in a search space, and the position of the target time-frequency position in the search space in the second target DCI detection period is the same as the position
  • the first DCI has the same time-frequency position in the search space of the first target DCI detection period
  • the second target DCI detection period is one of the n second DCI detection periods
  • the second target DCI does not overlap in time domain with any one of the m first transmission blocks.
  • the scheduling information in the first DCI further includes DCI subframe repetition number information.
  • the j-th first transmission block and the j-1th first transmission block in the m first transmission blocks are The interval in the time domain is indicated by a preset time domain interval, the scheduling delay information, and the DCI subframe repetition number information, and the length of each first transmission block in the time domain is determined by the transmission block number
  • the information and the resource allocation information indicate that 1 ⁇ j ⁇ m;
  • the interval between the first first transmission block and the first DCI in the time domain is indicated by the scheduling delay information.
  • the method further includes:
  • the third target DCI detection period is one of the n second detection periods, and the third target DCI detection period does not overlap the first target DCI detection period.
  • each of the first transmission blocks carries data of a multicast communication service.
  • a data transmission device includes at least one module, and the at least one module is configured to implement the data transmission method provided by the foregoing first aspect or any optional manner of the first aspect.
  • a data transmission device includes at least one module, and the at least one module is configured to implement the data transmission method provided by the second aspect or any optional manner of the second aspect.
  • a communication device includes: a processor and a memory;
  • the processor is configured to execute an instruction stored in the memory, and the processor implements the data transmission method provided by the first aspect or any optional manner of the first aspect by executing the instruction.
  • a communication device includes: a processor and a memory;
  • the processor is configured to execute an instruction stored in the memory, and the processor implements the data transmission method provided by the second aspect or any optional manner of the second aspect by executing the instruction.
  • a communication system including the data transmission device according to any one of the above third aspects and the data transmission device according to any one of the above fourth aspects.
  • a computer-readable storage medium stores instructions, and when the instructions are run on a processor, the processor is caused to execute the first aspect or the first aspect.
  • the data transmission method provided in any optional aspect of the aspect, or causing the processor to execute the data transmission method provided in the second aspect or any optional aspect of the second aspect.
  • a computer program product stores instructions that, when run on a computer, enable the computer to execute the data transmission method provided in the embodiments of the present application.
  • a chip includes a programmable logic circuit and / or a program instruction, and the chip can execute the data transmission method provided in the embodiment of the present application when the chip is running.
  • the UE receives instruction information and determines a first DCI detection period according to the instruction information, where the first DCI detection period includes n second DCI detection periods, and a search space exists in each second DCI detection period, and then, Receiving m first transmission blocks in the first DCI detection period according to the first DCI received in the search space of the first target DCI detection period, the first target DCI detection period is n second DCI detections One of the cycles. In this way, the UE only needs to receive the first DCI in one of the second DCI detection cycles of the n second DCI detection cycles, and then it can receive m transmission blocks in the n second DCI detection cycles. It is not necessary to perform DCI reception in each of the second DCI detection periods of the n second DCI detection periods. Therefore, the data transmission efficiency of the multicast service can be improved.
  • FIG. 1 is a schematic diagram of a DCI detection cycle.
  • FIG. 2 is a schematic diagram of a UE receiving a transmission block.
  • FIG. 3 is a schematic diagram of an implementation environment provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a first transmission block sent by a base station in a first DCI detection period according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a first transmission block sent by a base station in a first DCI detection period according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a first transmission block sent by a base station in a first DCI detection period according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a first transmission block sent by a base station in a first DCI detection period according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a first target DCI detection cycle according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a base station sending a first DCI in a first DCI detection cycle according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a UE receiving m first transmission blocks according to a first DCI according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a UE receiving m first transmission blocks according to a first DCI according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a UE receiving m first transmission blocks according to a first DCI according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a UE receiving m first transmission blocks according to a first DCI according to an embodiment of the present application.
  • FIG. 15 is a schematic diagram of a UE receiving m first transmission blocks according to a first DCI according to an embodiment of the present application.
  • FIG. 16 is a block diagram of a data transmission device according to an embodiment of the present application.
  • FIG. 17 is a block diagram of a data transmission device according to an embodiment of the present application.
  • FIG. 18 is a block diagram of a data transmission device according to an embodiment of the present application.
  • FIG. 19 is a block diagram of a data transmission device according to an embodiment of the present application.
  • FIG. 20 is a block diagram of a data transmission device according to an embodiment of the present application.
  • FIG. 21 is a block diagram of a data transmission device according to an embodiment of the present application.
  • FIG. 22 is a block diagram of a data transmission system according to an embodiment of the present application.
  • Multicast services are widely used in wireless communication systems.
  • single-cell point-to-multipoint English: Single-Cell, Multi-point; SC-PTM
  • SC-PTM single-cell point-to-multipoint
  • narrowband Internet of Things English: Narrow The application of Band Internet (Thing: NB-IoT) has become a current research hotspot.
  • SC-PTM service data can be transmitted on two types of logical channels, which are: Single Cell Multicast Control Channel (English: Single Cell Multicast Control Channel; abbreviated as SC-MCCH) and Single Cell Multicast Service channel (English: Single Cell Multicast Traffic Channel; abbreviation: SC-MTCH).
  • SC-MCCH Single Cell Multicast Control Channel
  • SC-MTCH Single Cell Multicast Traffic Channel
  • SC-MCCH is a control channel, which is used to carry control information for SC-PTM services
  • SC-MTCH is a traffic channel, which is used to carry service data for SC-PTM services.
  • data carried on the SC-MTCH and SC-MCCH is transmitted in the form of a transport block (English: Transport Block; TB for short).
  • both the SC-MCCH and SC-MTCH are carried on the physical downlink shared channel (English: Physical Downlink Shared Channel (PDSCH)) in the physical layer.
  • PDSCH Physical Downlink Shared Channel
  • the PDSCH here can be NPDSCH (English: Narrowband PDSCH).
  • a user equipment (English: User Equipment; UE for short) needs to receive downlink control information (English: Downlink Control Information) in a search space (English: Search Space; SS).
  • DCI Downlink Control Information
  • the UE also needs to receive DCI in the search space in order to receive the transport blocks carried on the SC-MTCH or SC-MCCH according to the scheduling of the DCI.
  • the UE may receive a system message sent by the base station, and the system message may include parameters R max , G, and ⁇ offset , where Table 1 is a possible value range of the parameters R max , G, and ⁇ offset .
  • the UE may obtain the product of R max and G as the length of the DCI detection period in the time domain, where there is one search space in each DCI detection period. At the same time, the UE may obtain R max as the length of the search space in the DCI detection period in the time domain. In addition, the UE may also obtain the product of R max , G, and ⁇ offset as the interval between the start position of the search space in the time domain and the start position of the DCI detection cycle in the time domain in the DCI detection cycle.
  • the UE may determine the time-frequency position of the search space in each DCI detection cycle according to the parameters R max , G, and ⁇ offset included in the system message, and according to the possible time-frequency of the DCI in the search space.
  • the location (for example, the location of the candidate) receives DCI in the search space of each DCI detection cycle.
  • the UE can receive the transmission carried on the SC-MTCH or SC-MCCH on the PDSCH according to the scheduling of the DCI. Piece.
  • the UE needs to receive DCI in each search space in order to receive transmissions carried on SC-MTCH or SC-MCCH on PDSCH according to the scheduling of DCI received in each search space. Piece.
  • FIG. 1 is a schematic diagram of a DCI detection period for an SC-MTCH logical channel.
  • the length of the DCI detection period in the time domain is R max * G
  • the search space in the DCI detection period is in the time domain.
  • the length is R max
  • the interval between the start position of the search space in the DCI detection period in the time domain and the start position of the DCI detection period in the time domain is R max * G * ⁇ offset .
  • There are 15 kinds of possible time-frequency positions of DCI in the search space that is, 15 kinds of dates.
  • the length of the 0 to 7 kinds of dates in the time domain is equal to 1 / 8th of R max , and the 8th to 11th types.
  • the length of the candidate in the time domain is equal to one-fourth of R max .
  • the length of the 12th and 13th dates of the candidate is equal to 1/2 of the R max .
  • the length of the 14th date of the candidate is equal to R in the time domain. max .
  • the DCI detection period for the SC-MCCH logical channel is similar to the DCI detection period for the SC-MTCH logical channel, and the difference is only in the DCI detection for the SC-MCCH logical channel.
  • FIG. 2 is a schematic diagram of a UE receiving a transmission block in the related art. As shown in FIG. 2, the UE can receive DCI in a search space of each DCI detection period, and receive a corresponding transmission block according to the received DCI scheduling.
  • An embodiment of the present application provides a data transmission method, which can improve data transmission efficiency of a multicast service.
  • the UE may receive indication information and determine a first DCI detection period according to the indication information, where the first DCI detection period includes n second DCI detection periods, and each second DCI detection period There is a search space, and then, according to the first DCI received in the search space of the first target DCI detection cycle, m first transmission blocks in the first DCI detection cycle are received, and the first target DCI detection cycle Is one of the n second DCI detection cycles.
  • the UE only needs to receive the first DCI in one of the second DCI detection cycles of the n second DCI detection cycles, and then the UE can Receiving m transmission blocks without receiving DCI in each of the second second DCI detection periods of the n second DCI detection periods. Therefore, the data transmission efficiency of the multicast service can be improved.
  • FIG. 3 is a schematic diagram of an implementation environment involved in a data transmission method according to an embodiment of the present application.
  • the implementation environment may include a base station 10 and a UE 20.
  • the base station 10 and the UE 20 can be connected through a communication network, and the UE 20 can be any UE served by the base station 10.
  • the communication network may be an NB-IoT communication network.
  • FIG. 4 is a flowchart of a data transmission method according to an embodiment of the present application.
  • the data transmission method may be applied to the implementation environment shown in FIG. 3.
  • the data transmission method may include the following steps. :
  • Step 401 The base station sends instruction information to the UE.
  • the indication information is used to indicate the first DCI detection period, that is, the indication information is used for the UE to determine the first DCI detection period.
  • the first DCI detection period may include n second DCI detection periods, and each second There is a search space in the DCI detection cycle, and n is a positive integer greater than or equal to 2.
  • the second DCI detection period may be the DCI detection period shown in FIG. 1.
  • the second DCI detection period may be determined by the UE according to parameters R max , G, and ⁇ offset included in the system message, that is, the length of the second DCI detection period in the time domain may be R max and The product of G.
  • the length of the search space of the second DCI detection period in the time domain may be R max .
  • the interval between the starting positions on can be the product of R max , G and ⁇ offset .
  • the indication information may be used to indicate the number n of second DCI detection periods included in the first DCI detection period.
  • the indication information may indicate a length of the first DCI detection period in the time domain, where the length of the first DCI detection period in the time domain may be the time of the second DCI detection period at An integer multiple of the length over the field (the integer multiple does not include 1).
  • Step 402 The UE receives indication information, and determines a first DCI detection period according to the indication information.
  • the UE After receiving the indication information sent by the base station, the UE may determine the first DCI detection period according to the indication information.
  • Step 403 The base station sends m first transmission blocks in the first DCI detection period, where m is a positive integer.
  • the first transmission block may carry data of a multicast service.
  • the first transmission block may carry data of SC-PTM services.
  • the first transmission block may carry data of SC-MCCH, or the first transmission block may carry data of SC-MTCH .
  • different first transmission blocks among the m first transmission blocks may carry different communication data, or some different first transmission blocks among the m first transmission blocks may carry different communication data.
  • the same communication data is not specifically limited in this embodiment of the present application.
  • the first transmission block sent by the base station in the first DCI detection period may be completely located in the first DCI detection period in the time domain, or may be partially located in the first DCI detection period.
  • the first transmission block sent by the base station in the first DCI detection cycle may not cross the time domain boundary of the first DCI detection cycle in the time domain, or it may cross the time domain boundary of the first DCI detection cycle.
  • FIG. 5 is a schematic diagram of a first transmission block a sent by a base station in a first DCI detection period A. As shown in FIG. 5, the first transmission block a is completely located in the first DCI detection period A in the time domain, that is, Yes, the first transmission block a does not cross the time domain boundary of the first DCI detection period A in the time domain.
  • FIG. 6 is a schematic diagram of a first transmission block b sent by a base station in a first DCI detection period A. As shown in FIG. 6, part of the first transmission block b is located in the first DCI detection period A in the time domain, and the other part In the first DCI detection period B, in other words, the first transmission block b crosses the time domain boundary of the first DCI detection period A in the time domain.
  • the first transmission block sent by the base station in the first DCI detection period may be completely located in a second DCI detection period in the time domain, or may be partially located in a second DCI detection period.
  • the first transmission block sent by the base station in the first DCI detection cycle may not cross the time domain boundary of the second DCI detection cycle in the time domain, or it may cross the time domain boundary of the second DCI detection cycle.
  • FIG. 7 is a schematic diagram of a first transmission block c sent by a base station in a first DCI detection period A.
  • the first DCI detection period A may include 4 second DCI detection periods, and the 4 second The DCI detection periods are a second DCI detection period w1, a second DCI detection period w2, a second DCI detection period w3, and a second DCI detection period w4.
  • the first transmission block c is completely located in the second DCI detection period in the time domain. In w1, that is, the first transmission block c does not cross the time domain boundary of the second DCI detection period in the time domain.
  • FIG. 8 is a schematic diagram of a first transmission block d sent by a base station in a first DCI detection cycle A.
  • the first DCI detection cycle A may include 4 second DCI detection cycles, and the 4 second The DCI detection periods are a second DCI detection period w1, a second DCI detection period w2, a second DCI detection period w3, and a second DCI detection period w4.
  • the first transmission block d is partially located in the second DCI detection period in the time domain. In w1, another part is located in the second DCI detection period w2, that is, the first transmission block d crosses the time domain boundary of the second DCI detection period w1 in the time domain.
  • Step 404 The base station sends the first DCI in a search space of a first target DCI detection period.
  • the first target DCI detection period is one of n second DCI detection periods included in the first DCI detection period.
  • the first target DCI detection period may be a second DCI detection period that is most advanced in the time domain among the n second DCI detection periods.
  • FIG. 9 is a schematic diagram of a first target DCI detection period.
  • the first DCI detection period A may include four second DCI detection periods, and the four second DCI detection periods are the second DCI detection periods w1 respectively.
  • a second DCI detection period w2, a second DCI detection period w3, and a second DCI detection period w4 where the second DCI detection period w1 is the second in the time domain that is the most advanced in the four second DCI detection periods DCI detection period, the second DCI detection period w1 is the first target DCI detection period.
  • the base station may send the first DCI in the search space of the first target DCI detection cycle, where the first DCI is used to schedule the m first transmission blocks sent by the base station in the first DCI detection cycle, that is, the The first DCI is used by the UE to receive the m first transmission blocks sent by the base station in a first DCI detection period according to the first DCI.
  • the UE can receive the first DCI only in one second DCI detection period (that is, the first target DCI detection period) among the n second DCI detection periods, and can then respond to the n second DCIs.
  • target UEs there may also be some old versions of UEs that only support receiving DCI in each search space and receive the transmission blocks according to the DCI received in each search space.
  • these old versions of UEs are collectively referred to as target UEs.
  • the base station can also send m-1 in the search space of m-1 second DCI detection cycles, respectively.
  • a first DCI wherein the m-1 second DCI detection periods do not include a first target DCI detection period, and the m-1 numbers sent in the search space of the m-1 second DCI detection periods respectively
  • the first DCI and the first DCI (a total of m first DCIs) sent in the first target DCI detection period correspond to the m first transmission blocks one by one, and each first DCI is used to schedule a corresponding first transmission. Piece.
  • the first DCI detection period A may include 4 second DCI detection periods, and the 4 second DCI detection periods are the second DCI detection period w1, the second DCI detection period w2, and the second DCI.
  • the base station may send four first transmission blocks in the first DCI detection period.
  • the base station may not only in the second DCI detection period w1 (that is, In addition to sending the first DCI in the search space of the first target DCI detection period), the first DCI can also be sent in the search spaces of the second DCI detection period w2, the second DCI detection period w3, and the second DCI detection period w4, respectively.
  • the base station may send four first DCIs in the first DCI detection cycle, wherein the four first DCIs correspond to the four first transmission blocks one by one, and each first DCI is For scheduling the corresponding first transmission block, in this way, for the target UE, it can receive DCI in each search space, and can receive the corresponding reception according to the scheduling of the first DCI received in each search space.
  • the first transmission block may send four first DCIs in the first DCI detection cycle, wherein the four first DCIs correspond to the four first transmission blocks one by one, and each first DCI is For scheduling the corresponding first transmission block, in this way, for the target UE, it can receive DCI in each search space, and can receive the corresponding reception according to the scheduling of the first DCI received in each search space.
  • the first transmission block may send four first DCIs in the first DCI detection cycle, wherein the four first DCIs correspond to the four first transmission blocks one by one, and each first DCI is For scheduling the corresponding first transmission block, in this way, for the target
  • Step 405 The UE receives m first transmission blocks in the first DCI detection period according to the first DCI received in the search space of the first target DCI detection period.
  • This embodiment of the present application provides two ways to receive m first transmission blocks according to the first DCI, and the following embodiments of this application will describe them one by one:
  • the UE may determine the first transmission block of each of the m first transmission blocks according to the scheduling information in the first DCI and the time-frequency position of the first DCI in the search space of the first target DCI detection period. Time-frequency position, and receive the m first transmission blocks according to the time-frequency position of each first transmission block.
  • the time-frequency position of the first DCI in the search space refers to the position of the candidate where the first DCI is located in the search space.
  • the scheduling information of the first DCI may include transmission block repetition number information, scheduling delay information, resource allocation information, and DCI subframe repetition number information.
  • the transmission block repetition number information is located in the repetition number field (English: repetition number field) of the first DCI, and the UE can determine the number of repetitions of the multicast service data in the first transmission block according to the transmission block repetition number information.
  • the scheduling delay information is located in a scheduling delay field (English: scheduling field) of the first DCI, and the UE can determine the interval between the target transmission block and the first DCI in the time domain according to the scheduling delay information, and the target transmission
  • the block refers to the first first transmission block in the time domain among the m first transmission blocks.
  • the so-called first in the time domain refers to the first subframe included in the target transmission block in the time domain. Move forward.
  • the time interval k0 between the target transmission block and the first DCI refers to Is the interval in the time domain between subframe n and subframe n0.
  • the resource allocation information is located in a resource allocation field (English: resource assignment field) of the first DCI, and the UE may determine the number of subframes included in the first transmission block according to the resource allocation information.
  • the DCI subframe repetition number information is located in the DCI subframe repetition number field (English: DCI subframe number field) of the first DCI.
  • the UE can determine the length of the first DCI in the time domain according to the DCI subframe repetition number information. .
  • the UE may according to the time-frequency position of each first transmission block and the modulation and coding strategy included in the first DCI (English: Modulation and coding scheme; abbreviated: MCS ) Information, transmission block repetition number information, and resource allocation information are received for each first transmission block.
  • MCS Modulation and coding scheme
  • the UE may receive each of the m first transmission blocks according to the scheduling of the first DCI. In this way, the UE only needs to perform a second operation in one of the n second DCI detection cycles.
  • Receiving the first DCI in the DCI detection cycle (that is, the first target DCI detection cycle) enables the reception of m first transmission blocks in the n second DCI detection cycles, without the need for n second DCI reception is performed in each of the second DCI detection periods in the DCI detection period. Therefore, the data transmission efficiency of the multicast service (for example, SC-PTM service) can be improved, and the power consumption of the UE can also be reduced.
  • the multicast service for example, SC-PTM service
  • the UE may determine according to the transmission block repetition number information, the scheduling delay information, the resource allocation information, and a time-frequency position of the first DCI in a search space of a first target DCI detection period. The time-frequency position of each first transmission block in the m first transmission blocks.
  • the UE may determine the length of the first transmission block in the time domain according to the transmission block repetition number information and resource allocation information in the first DCI, and the length may be obtained by the following formula:
  • N N rep ⁇ N SF .
  • N is the length of the first transmission block in the time domain
  • N rep is a value indicated by the information of the number of times the transmission block is repeated
  • N SF is a value indicated by the resource allocation information.
  • the UE may determine a first second target DCI detection period from the n second DCI detection periods, where a sequence number of a second target DCI detection period is used to indicate that the second target DCI detection period is in the time domain. That is, the k-th second target DCI detection period is located in the time domain after the k-1th second target DCI detection period and before the k + 1th second target DCI detection period.
  • the target time-frequency position in the search space of the second target DCI detection period and any one of the m first transmission blocks do not overlap in the time domain.
  • the position of the target time-frequency position in the search space of the second target DCI detection period is the same as the time-frequency position of the first DCI in the search space of the first target DCI detection period, that is, the target time-frequency position is in the search
  • the dates of the dates in the space are the same as the dates of the dates of the first DCI in the search space.
  • the so-called position of the target time-frequency position in the search space of the second target DCI detection period and the time-frequency position of the first DCI in the search space of the first target DCI detection period mean that the target time-frequency position
  • the starting position of the search space of the position relative to the second target DCI detection period in the time domain is the same as the starting position of the search space of the first DCI relative to the first target DCI detection period in the time domain.
  • the first target DCI detection period is the second DCI detection period that is the most advanced in the time domain among the n second DCI detection periods
  • the first second target DCI detection period may be the first A target DCI detection cycle.
  • the UE may determine the first transmission block of the m first transmission blocks according to the target time-frequency position in the first second target DCI detection period.
  • Time-frequency position where the interval between the target time-frequency position in the first second target DCI detection period and the first first transmission block in the time domain may be determined by the UE according to the scheduling delay information.
  • sequence number of a first transport block is used to indicate the ordering of the first transport block in the time domain, that is, the k-th first transport block is located in the k-1th first in the time domain. After the transport block, it is located before the k + 1th first transport block.
  • the interval in the time domain between the i-th first transmission block and the target time-frequency position in the i-th second target DCI detection period refers to: the starting position of the i-th first transmission block in the time domain and The interval between the end positions of the target time-frequency position in the time domain in the i-th second target DCI detection period.
  • the UE may determine the second second target according to the time-frequency position of the first first transmission block and the length of the first transmission block in the time domain.
  • DCI detection cycle, the second second target DCI detection cycle is at least one second DCI detection cycle in the time domain where the target time-frequency position in the search space does not overlap with the first first transmission block in the time domain The first second DCI detection cycle.
  • the UE may determine the second first transmission block among the m first transmission blocks according to the target time-frequency position in the second second target DCI detection period.
  • Time-frequency position, where the interval between the target time-frequency position in the second second target DCI detection period and the second first transmission block in the time domain may be determined by the UE according to the scheduling delay information.
  • the UE can determine the time-frequency positions of the 3rd to m-th first transmission blocks.
  • the interval in time domain between the time-frequency position of the ith first transmission block in the m first transmission blocks and the target time-frequency position in the ith second target DCI detection period can be determined by the UE according to
  • the scheduling delay information is determined, 1 ⁇ i ⁇ m;
  • the target time-frequency position in the i-th second target DCI detection period is located in the search space, and the position of the target time-frequency position in the search space of the second target DCI detection period is the same as the first DCI in the first DCI.
  • the time-frequency positions in the search space of the detection period are the same.
  • the second target DCI detection period is determined by the UE from the n second DCI detection periods according to the transmission block repetition number information and resource allocation information.
  • the second target DCI detection period The target time-frequency position of and does not overlap in the time domain with any one of the m first transmission blocks.
  • the number of the second target DCI detection cycles is at least one and at most n, according to the above description, it can be known that the value of m can be at least 1 and the largest can be n.
  • the first DCI detection period A may include four second DCI detection periods, and the four second DCI detection periods are a second DCI detection period w1, a second DCI detection period w2, and a second DCI detection. Period w3 and second DCI detection period w4.
  • the base station may send the first DCI in the search space of the second DCI detection period w1 (that is, the first target DCI detection period), and the base station may send the first DCI in the first DCI detection period A. 4 first transmission blocks are sent.
  • the four second DCI detection cycles are the second target DCI detection cycle.
  • the first second target DCI detection cycle is the second DCI detection cycle w1
  • the second second target DCI is the second DCI detection cycle w1
  • the second second target DCI is the second DCI detection cycle w1
  • the detection period is the second DCI detection period w2
  • the third second target DCI detection period is the second DCI detection period w3
  • the fourth second target DCI detection period is the second DCI detection period w4.
  • the UE may The target time-frequency position in the second target DCI detection period (that is, the second DCI detection period w1) determines the time-frequency position of the first first transmission block, and according to the second second target DCI detection period (that is, The target time-frequency position in the second DCI detection period w2) determines the time-frequency position of the second first transmission block, and according to the target in the third second target DCI detection period (that is, the second DCI detection period w3) Time-frequency position determines the time-frequency position of the third first transmission block, according to the fourth second target DC
  • the target time-frequency position in the I detection period that is, the second DCI detection period w4) determines the time-frequency position of the fourth first transmission block.
  • FIG. 12 is another schematic diagram of a UE receiving m first transmission blocks according to a first DCI.
  • the first DCI detection period A may include four second DCI detection periods, and the four second DCI detection periods are a second DCI detection period w1, a second DCI detection period w2, and a second DCI detection.
  • the base station may send the first DCI in the search space of the second DCI detection period w1 (that is, the first target DCI detection period), and the base station may send the first DCI in the first DCI detection period A. Send 2 first transport blocks.
  • the second DCI detection period w1 and the first The second DCI detection period w3 is a second target DCI detection period, wherein the first second target DCI detection period is a second DCI detection period w1, the second second target DCI detection period is a second DCI detection period w3, and the UE
  • the time-frequency position of the first first transmission block may be determined according to the target time-frequency position in the first second target DCI detection period (that is, the second DCI detection period w1), and detected according to the second second target DCI
  • the target time-frequency position in the period determines the time-frequency position of the second first transmission block.
  • FIG. 13 is another schematic diagram of a UE receiving m first transmission blocks according to a first DCI.
  • the first DCI detection period A may include four second DCI detection periods, and the four second DCI detection periods are a second DCI detection period w1, a second DCI detection period w2, and a second DCI detection.
  • the base station may send the first DCI in the search space of the second DCI detection period w1 (that is, the first target DCI detection period), and the base station may send the first DCI in the first DCI detection period A. Send 1 first transport block.
  • the second DCI detection period w1 is the second target DCI detection period, where The first second target DCI detection period is also the second DCI detection period w1, and the UE may use the target time-frequency position in the first second target DCI detection period (that is, the second DCI detection period w1). Determine the time-frequency position of the first first transmission block.
  • the UE may use the transmission block repetition number information, the scheduling delay information, the resource allocation information, the DCI subframe repetition number information, and the time-frequency position of the first DCI in the search space. To determine the time-frequency position of each of the m first transmission blocks.
  • the UE may use the formula described above to determine the length of the first transmission block in the time domain according to the transmission block repetition number information and resource allocation information in the first DCI.
  • the UE may determine the time-frequency position of the first first transmission block in the m first transmission blocks according to the time-frequency position of the first DCI and the scheduling delay information, that is, determine the m first transmission blocks.
  • the UE may determine the termination position of the first first transmission block in the time domain according to the length of the first transmission block in the time domain.
  • the UE may determine an interval in the time domain of the first first transmission block and the second first transmission block according to a preset time domain interval, DCI subframe repetition number information, and scheduling delay information.
  • a preset time domain interval can be 12 milliseconds.
  • the interval in the time domain between the first first transmission block and the second first transmission block refers to: the end position of the first first transmission block in the time domain and the second first transmission block The interval between the start positions of the transport blocks in the time domain.
  • the UE may determine the time of the second first transmission block according to the interval in the time domain between the first first transmission block and the second first transmission block and the termination position of the first first transmission block in the time domain.
  • the frequency position that is, determines the starting position of the second first transmission block in the time domain.
  • the UE can determine the time-frequency positions of the 3rd to m-th first transmission blocks.
  • the time-frequency position of the j-th first transmission block and the j-1th first transmission block in the time domain among the m first transmission blocks can be determined by the UE according to a preset time-domain interval,
  • the scheduling delay information and the DCI subframe repetition number information are determined.
  • the length of each first transmission block in the time domain can be determined by the UE according to the transmission block repetition number information and resource allocation information. 1 ⁇ j ⁇ m, where the first The interval between the first transmission block and the first DCI in the time domain may be determined by the UE according to the scheduling delay information.
  • the first DCI detection period A may include four second DCI detection periods, and the four second DCI detection periods are a second DCI detection period w1, a second DCI detection period w2, and a second DCI detection.
  • the base station may send the first DCI in the search space of the second DCI detection period w1 (that is, the first target DCI detection period), and the base station may send the first DCI in the first DCI detection period A. Send 2 first transport blocks.
  • the interval between the first first transmission block and the first DCI in the time domain can be determined by the UE according to the scheduling delay information, and the length of the first first transmission block in the time domain can be determined by the UE according to the first DCI.
  • the interval in the time domain between the first first transmission block and the second first transmission block can be determined by the UE according to a preset time domain interval, scheduling delay information, and DCI
  • the frame repetition number information is determined.
  • the UE may receive DCI in the search space of each second DCI detection cycle included in the first DCI detection cycle.
  • the UE may Receiving the first transmission block in the second DCI detection period according to the first DCI, and when receiving the second DCI in a search space of a second DCI detection period (hereinafter referred to as a third target DCI detection period), the UE The second transmission block in the third target DCI detection period may be received according to the second DCI, where the third target DCI detection period is different from the first target DCI detection period.
  • the second DCI and the first DCI may be different, and the time-frequency position of the second DCI in the search space and the time-frequency position of the first DCI in the search space may also be different, that is, the second The location of the date where the DCI is located may be different from the location of the date where the first DCI is located.
  • the second DCI and the first DCI may be different
  • the content indicated by the scheduling information of the second DCI and the content indicated by the scheduling information of the first DCI may be different, for example, the transmission block in the second DCI is duplicated
  • the value indicated by the number of times information may be different from the value indicated by the transmission block repetition number information in the first DCI.
  • the value indicated by the scheduling delay information in the second DCI is different from the value indicated by the scheduling delay information in the first DCI.
  • the values can be different and so on.
  • the base station can be made to send different types of transmission blocks in the first DCI detection cycle, thereby improving the flexibility of the base station to send the transmission blocks.
  • FIG. 15 is a schematic diagram of a UE receiving m first transmission blocks according to a first DCI.
  • the first DCI detection period A may include four second DCI detection periods, and the four second DCI detection periods are a second DCI detection period w1, a second DCI detection period w2, and a second DCI detection.
  • the base station may send the first DCI in the search space of the second DCI detection period w1 (that is, the first target DCI detection period), and in the search space of the second DCI detection period w2.
  • the second DCI is sent, and the base station may send the first transmission block in the second DCI detection period w1, the second DCI detection period w3, and the second DCI detection period w4, and send the second transmission block in the second DCI detection period w2.
  • the UE can receive the first transmission block in the second DCI detection period w1 according to the scheduling of the first DCI.
  • the UE cannot receive DCI in the second DCI detection period w3 and the second DCI detection period w4
  • the UE can The first transmission block in the second DCI detection period w3 and the second DCI detection period w4 is received according to the first DCI. Since the UE receives the second DCI in the second DCI detection period w2, the UE can receive according to the second DCI The second transmission block in the second DCI detection period w2.
  • the UE receives instruction information and determines a first DCI detection period according to the instruction information, where the first DCI detection period includes n second DCI detection periods, There is a search space in each second DCI detection period, and then, according to the first DCI received in the search space of the first target DCI detection period, m first transmission blocks in the first DCI detection period are received.
  • the first target DCI detection period is one of the n second DCI detection periods.
  • the UE only needs to receive the first DCI in one second DCI detection period of the n second DCI detection periods, and then it can m transmission blocks in n second DCI detection periods are received, and DCI reception does not need to be performed in each second DCI detection period in n second DCI detection periods. Therefore, the multicast service can be improved. Data transmission efficiency.
  • FIG. 16 shows a block diagram of a data transmission apparatus 500 provided by an embodiment of the present application.
  • the data transmission apparatus 500 may be a UE.
  • the data transmission apparatus 500 may include a first receiving module 501, a period determining module 502, and a second receiving module 503.
  • the first receiving module 501 is configured to receive instruction information.
  • the period determining module 502 is configured to determine a first DCI detection period according to the instruction information.
  • the first DCI detection period includes n second DCI detection periods, and a search space exists in each of the second DCI detection periods, where n is A positive integer greater than or equal to 2.
  • the second receiving module 503 is configured to receive m first transmission blocks in the first DCI detection period according to the first DCI received in a search space of the first target DCI detection period.
  • the DCI detection period is one of the n second DCI detection periods, and m is a positive integer.
  • the second receiving module 503 includes:
  • a position determining submodule configured to determine each first transmission in the m first transmission blocks according to the scheduling information in the first DCI and the time-frequency position of the first DCI in a search space of a first DCI detection period Time-frequency position of the block;
  • the receiving sub-module is configured to receive the m first transmission blocks according to the time-frequency position of each first transmission block.
  • the scheduling information in the first DCI includes transmission block repetition number information, scheduling delay information, and resource allocation information
  • the position determination submodule is configured to: according to the transmission block repetition number information, The scheduling delay information, the resource allocation information, and the time-frequency position of the first DCI in the search space of the first DCI detection period determine the time-frequency position of each of the m first transmission blocks.
  • the position determining sub-module is configured to:
  • the interval is determined according to the scheduling delay information, 1 ⁇ i ⁇ m;
  • the target time-frequency position in the i-th second target DCI detection period is located in the search space, and the position of the target time-frequency position in the search space of the second target DCI detection period is the same as that of the first DCI.
  • the time-frequency position in the search space of the first DCI detection period is the same.
  • the second target DCI detection period is one of n second DCI detection periods.
  • the target time-frequency position in the second target DCI detection period is the same as the m. Any one of the first transmission blocks does not overlap in the time domain.
  • the scheduling information in the first DCI further includes DCI subframe repetition number information
  • the position determining submodule is configured to:
  • the time-domain interval between the j-th first transmission block and the j-1th first transmission block is based on a preset time domain.
  • the interval, the scheduling delay information and the DCI subframe repetition number information are determined, and the length of each first transmission block in the time domain is determined according to the transmission block repetition number information and the resource allocation information, 1 ⁇ j ⁇ m;
  • the interval between the first first transmission block and the first DCI in the time domain is determined according to the scheduling delay information.
  • each of the first transmission blocks carries data of a multicast communication service.
  • the present application further provides a data transmission device 600.
  • the data transmission device 600 includes a third receiving module 504 in addition to the modules included in the data transmission device 500.
  • the third receiving module 504 is configured to receive the second transmission block in the third target DCI detection period according to the second DCI received in the search space of the third target DCI detection period.
  • the target DCI detection period is one of the n second detection periods, and the third target DCI detection period does not overlap the first target DCI detection period.
  • first receiving module 501, the second receiving module 502, and the third receiving module 504 may be the same receiving module or different receiving modules, which are not specifically limited in the embodiment of the present application.
  • the data transmission device receives the instruction information and determines the first DCI detection period according to the instruction information, where the first DCI detection period includes n second DCI detection periods, and each There is a search space in each of the second DCI detection periods, and then, according to the first DCI received in the search space of the first target DCI detection period, m first transmission blocks in the first DCI detection period are received,
  • the first target DCI detection period is one of the n second DCI detection periods.
  • the UE only needs to receive the first DCI in one second DCI detection period of the n second DCI detection periods, and then it can M transmission blocks in two second DCI detection cycles are received, and DCI reception is not required in each second DCI detection cycle in n second DCI detection cycles. Therefore, the data of the multicast service can be improved. Transmission efficiency.
  • FIG. 18 shows a block diagram of a data transmission apparatus 700 provided by an embodiment of the present application.
  • the data transmission apparatus 700 may be a base station.
  • the data transmission apparatus 700 may include a first sending module 701, a second sending module 702, and a third sending module 703.
  • the first sending module 701 is configured to send indication information to a UE, where the indication information is used to indicate a first DCI detection period, and the first DCI detection period includes n second DCI detection periods, each of the second DCI There is a search space in the detection period, and n is a positive integer greater than or equal to 2.
  • the second sending module 702 is configured to send m first transmission blocks in the first DCI detection period, where m is a positive integer.
  • the third sending module 703 is configured to send a first DCI in a search space of a first target DCI detection period, the first DCI is used to schedule the m first transmission blocks, and the first target DCI detection period is the n One of the second DCI detection cycles.
  • the scheduling information in the first DCI and the time-frequency position of the first DCI in a search space of a first target DCI detection period are used to indicate each of the m first transmission blocks. Time-frequency position of the first transmission block.
  • the scheduling information in the first DCI includes transmission block repetition number information, scheduling delay information, and resource allocation information; the transmission block repetition number information, the scheduling delay information, and the resource allocation information And the time-frequency position of the first DCI in the search space of the first target DCI detection period is used to indicate the time-frequency position of each of the m first transmission blocks.
  • an interval in the time domain between an i-th first transmission block in the m first transmission blocks and a target time-frequency position in the i-th second target DCI detection period is determined by the scheduling.
  • Delay information indication 1 ⁇ i ⁇ m;
  • the target time-frequency position in the i-th second target DCI detection period is located in the search space, and the position of the target time-frequency position in the search space of the second target DCI detection period is the same as that of the first DCI.
  • the time-frequency position in the search space of the first target DCI detection period is the same.
  • the second target DCI detection period is one of the n second DCI detection periods.
  • the target time-frequency position in the second target DCI detection period is the same as Any one of the m first transmission blocks does not overlap in the time domain.
  • the scheduling information in the first DCI further includes DCI subframe repetition number information, and the j-th first transmission block and the j-1-th first transmission block among the m first transmission blocks.
  • the interval of the transmission block in the time domain is indicated by the preset time domain interval, the scheduling delay information, and the DCI subframe repetition number information.
  • the length of each first transmission block in the time domain is determined by the transmission block repetition number information.
  • the resource allocation information indicates that 1 ⁇ j ⁇ m; wherein, the interval between the first first transmission block and the first DCI in the time domain is indicated by the scheduling delay information.
  • each of the first transmission blocks carries data of a multicast communication service.
  • the present application further provides a data transmission device 800.
  • the data transmission device 800 includes a fourth transmission module 704, a fifth transmission module 705, and a first transmission module in addition to the modules included in the data transmission device 700.
  • the fourth sending module 704 is configured to send m-1 first DCIs in m-1 search spaces of the second DCI detection cycle, respectively, where the m-1 second The DCI detection period does not include the first target DCI detection period.
  • the m-1 first DCIs and the first DCI sent in the first target DCI detection period correspond to the m first transmission blocks one by one.
  • the first DCIs are used to schedule the corresponding first transmission block.
  • the fifth sending module 705 is configured to send a second transmission block in a third target DCI detection period.
  • a sixth sending module 706 is configured to send a second DCI in a search space of the third target DCI detection period, and the second DCI is used to schedule the second transmission block, where the third target DCI detection period is the n In one of the second detection cycles, the third target DCI detection cycle does not overlap with the first target DCI detection cycle.
  • first to sixth sending modules may be the same sending module, or may be different sending modules, which are not specifically limited in this embodiment of the present application.
  • the data transmission device 700 and the data transmission device 800 may further include a processing module, which is configured to determine a first DCI detection cycle.
  • the first sending module 701 may perform the processing according to the processing.
  • the indication information is sent in a first DCI detection period determined by the module.
  • the data transmission device sends instruction information to the UE, so that the UE determines the first DCI detection period according to the instruction information, where the first DCI detection period includes n second DCIs. Detection period, there is a search space in each second DCI detection period, and m first transmission blocks are sent in the first DCI detection period, and the first DCI is sent in the search space of the first target DCI detection period, so that The UE receives the m first transmission blocks according to the first DCI.
  • the first target DCI detection cycle is one of the n second DCI detection cycles.
  • the UE only needs to Receiving a first DCI in one second DCI detection cycle, it is possible to receive m transmission blocks in n second DCI detection cycles, without the need for each second DCI in n second DCI detection cycles
  • the DCI reception is performed in the detection period, so the data transmission efficiency of the multicast service can be improved.
  • the communication device may be a UE (also referred to as a terminal), or a circuit structure, a chip, a chip system, or other structures in the UE.
  • This embodiment provides a terminal 900.
  • the terminal 900 may be the foregoing communication device, and the terminal 900 may be configured to execute a technical process performed by a UE in the data transmission method provided by the foregoing embodiment. Referring to FIG. 20, the terminal 900 includes:
  • the terminal 900 may include an RF (Radio Frequency) circuit 910, a memory 920 including one or more computer-readable storage media, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, and a WiFi (Wireless Fidelity, wireless) (Fidelity) module 970, including a processor 980 with one or more processing cores, and a power supply 190 and other components.
  • RF Radio Frequency
  • a memory 920 including one or more computer-readable storage media
  • an input unit 930 a display unit 940
  • a sensor 950 an audio circuit 960
  • a WiFi (Wireless Fidelity, wireless) (Fidelity) module 970 including a processor 980 with one or more processing cores, and a power supply 190 and other components.
  • WiFi Wireless Fidelity, wireless
  • the RF circuit 910 can be used to receive and send signals during the transmission and reception of information or during a call. In particular, after receiving the downlink information of the base station, it is processed by one or more processors 980. In addition, the uplink-related data is sent to the base station. .
  • the RF circuit 910 includes, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM) card, a transceiver, a coupler, and an LNA (Low Noise Amplifier). , Duplexer, etc.
  • the RF circuit 910 can also communicate with a network and other devices through wireless communication.
  • the wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System, Mobile Communication), GPRS (General Packet Radio Service), and CDMA (Code Division Multiple Access) , Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution, Long Term Evolution), email, SMS (Short Messaging Service, Short Message Service) and so on.
  • GSM Global System, Mobile Communication
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • SMS Short Messaging Service
  • Short Message Service Short Message Service
  • the memory 920 may be used to store software programs and modules.
  • the processor 980 executes various functional applications and data processing by running the software programs and modules stored in the memory 920.
  • the memory 920 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to The terminal 900 uses the created data (such as audio data, phonebook, etc.) and the like.
  • the memory 920 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage device. Accordingly, the memory 920 may further include a memory controller to provide the processor 980 and the input unit 930 to access the memory 920.
  • the input unit 930 may be used to receive inputted numeric or character information, and generate a keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.
  • the input unit 930 may include a touch-sensitive surface 931 and other input devices 932.
  • Touch-sensitive surface 931 also known as a touch display or touchpad, collects user touch operations on or near it (such as the user using a finger, stylus, etc. any suitable object or accessory on touch-sensitive surface 931 or on Near the touch-sensitive surface 931), and drive the corresponding connection device according to a preset program.
  • the touch-sensitive surface 931 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it It is given to the processor 980, and can receive commands from the processor 980 and execute them.
  • various types such as resistive, capacitive, infrared, and surface acoustic waves can be used to implement the touch-sensitive surface 931.
  • the input unit 930 may include other input devices 932.
  • the other input devices 932 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
  • the display unit 940 may be used to display information input by the user or information provided to the user and various graphical user interfaces of the terminal 900. These graphical user interfaces may be composed of graphics, text, icons, videos, and any combination thereof.
  • the display unit 940 may include a display panel 941.
  • the display panel 941 may be configured in the form of an LCD (Liquid Crystal Display) or an OLED (Organic Light-Emitting Diode).
  • the touch-sensitive surface 931 may cover the display panel 941. When the touch-sensitive surface 931 detects a touch operation on or near the touch-sensitive surface 931, it is transmitted to the processor 980 to determine the type of the touch event. The type provides corresponding visual output on the display panel 941.
  • the touch-sensitive surface 931 and the display panel 941 are implemented as two separate components to implement input and input functions, in some embodiments, the touch-sensitive surface 931 and the display panel 941 may be integrated to implement input. And output functions.
  • the terminal 900 may further include at least one sensor 950, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 941 according to the brightness of the ambient light, and the proximity sensor may close the display panel 941 and the terminal 900 when the terminal 900 is moved to the ear. / Or backlight.
  • the gravity acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes). It can detect the magnitude and direction of gravity when it is stationary.
  • attitude of the mobile phone such as horizontal and vertical screen switching, related Games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc .
  • other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. More details.
  • the audio circuit 960, the speaker 961, and the microphone 962 may provide an audio interface between the user and the terminal 900.
  • the audio circuit 960 may transmit the received electrical data converted electrical signals to a speaker 961, which is converted by the speaker 961 into a sound signal and output; on the other hand, the microphone 962 converts the collected sound signal into an electrical signal, and the audio circuit 960 After receiving it, it is converted into audio data, and then the audio data output processor 980 is processed and then sent to, for example, another terminal via the RF circuit 910, or the audio data is output to the memory 920 for further processing.
  • the audio circuit 960 may further include an earphone jack to provide communication between the peripheral headset and the terminal 900.
  • WiFi is a short-range wireless transmission technology.
  • the terminal 900 can help users send and receive email, browse web pages, and access streaming media through the WiFi module 970. It provides users with wireless broadband Internet access.
  • FIG. 20 shows the WiFi module 970, it can be understood that it does not belong to the necessary configuration of the terminal 900, and can be omitted as needed without changing the essence of the invention.
  • the processor 980 is the control center of the terminal 900, and uses various interfaces and lines to connect various parts of the entire mobile phone. By running or executing software programs and / or modules stored in the memory 920, and calling data stored in the memory 920, Perform various functions of the terminal 900 and process data to perform overall monitoring of the mobile phone.
  • the processor 980 may include one or more processing cores; preferably, the processor 980 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc.
  • the modem processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 980.
  • the terminal 900 also includes a power source 190 (such as a battery) for supplying power to various components.
  • the power source can be logically connected to the processor 980 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system.
  • the power supply 190 may further include any one or more DC or AC power supplies, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and other arbitrary components.
  • the terminal 900 may further include a camera, a Bluetooth module, and the like, and details are not described herein again.
  • the display unit of the terminal is a touch screen display.
  • the terminal further includes a memory and one or more programs.
  • One or more programs are stored in the memory and configured to be processed by one or more. ⁇ Executive.
  • the one or more programs include instructions for performing the above-mentioned data transmission method.
  • Fig. 21 is a block diagram of a communication device 1000 according to an exemplary embodiment.
  • the communication device may be a base station or a circuit structure, a chip, a chip system, or other structures in the base station.
  • the communication device 1000 may include a processor 1001, a receiver 1002, a transmitter 1003, and a memory 1004.
  • the receiver 1002, the transmitter 1003, and the memory 1004 are connected to the processor 1001 through a bus, respectively.
  • the processor 1001 includes one or more processing cores.
  • the processor 1001 runs a software program and a module to execute a method performed by a base station in the data transmission method provided in the embodiments of the present application.
  • the memory 1004 may be used to store software programs and modules. Specifically, the memory 1004 may store an operating system 10041 and an application program module 10042 required for at least one function.
  • the receiver 1002 is configured to receive communication data sent by other devices, and the transmitter 1003 is configured to send communication data to other devices.
  • Fig. 22 is a block diagram of a communication system 1100 according to an exemplary embodiment. As shown in Fig. 22, the communication system 1100 includes a base station 1101 and a UE 1102.
  • the base station 1101 is configured to execute the data transmission method performed by the base station in the foregoing embodiments.
  • the UE 1102 is configured to execute the data transmission method performed by the UE in the foregoing embodiments.
  • the size of the sequence numbers of the above processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • each data block in multiple first data blocks may contain the same or different data, and the technical feature names with different serial numbers may also correspond to the same Technical characteristics, for example, the first target DCI detection period and the second target DCI detection period may be the same DCI detection period in the system, and so on.
  • a computer-readable storage medium is also provided.
  • the computer-readable storage medium is a non-volatile computer-readable storage medium, and the computer-readable storage medium stores a computer program therein.
  • the computer program is executed by the processing component, the data transmission method provided by the foregoing embodiment of the present application can be implemented.
  • the embodiment of the present application further provides a computer program product.
  • the computer program product stores instructions, which when run on a computer, enable the computer to execute the data transmission method provided by the embodiment of the present application.
  • An embodiment of the present application further provides a chip, which includes a programmable logic circuit and / or a program instruction, and can execute a data transmission method provided by the embodiment of the present application when the chip is running.
  • the program may be stored in a computer-readable storage medium.
  • the storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk.

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Abstract

本申请公开了一种数据传输方法、装置、设备及存储介质，属于无线通信技术领域。该方法包括：接收指示信息；根据该指示信息确定第一DCI检测周期，该第一DCI检测周期包括n个第二DCI检测周期，每个该第二DCI检测周期中均存在搜索空间，n为大于或等于2的正整数；根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对该第一DCI检测周期中的m个第一传输块进行接收，该第一目标DCI检测周期是该n个第二DCI检测周期中的一个，m为正整数。本申请可以提高组播业务的数据传输效率。

Description

数据传输方法、装置、设备及存储介质
本申请要求于2018年09月04日提交的申请号为201811027573.8、发明名称为“数据传输方法、装置、设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，特别涉及一种数据传输方法、装置、设备及存储介质。
背景技术
组播业务在无线通信系统中的应用较为广泛，其中，单小区点对多点(英文：Single Cell Point to Multi-point；简称：SC-PTM)业务就是一种常见的组播业务。当前，组播业务在窄带物联网(英文：Narrow Band Internet of Thing；简称：NB-IoT)中的应用已经成为了一个研究热点。组播业务的数据通常以传输块(英文：Transport Block；简称：TB)的形式在物理下行共享信道(英文：Physical Downlink Shared Channel；简称：PDSCH)中进行传输，用户设备(英文：User Equipment；简称：UE)通常需要在下行控制信息(英文：Downlink Control Information；简称：DCI)的调度下接收承载于PDSCH上的该传输块。
相关技术中，在接收组信业务的传输块时，UE需要对每一搜索空间(英文：Search Space；简称：SS)中的DCI进行接收，并根据在每一搜索空间中接收到的DCI对组播业务中的传输块进行接收。
然而，相关技术中对每一搜索空间中的DCI进行接收，并根据在每一搜索空间中接收到的DCI对组播业务中的传输块进行接收的方式会影响组播业务的数据传输效率。
发明内容
本申请实施例提供了一种数据传输方法、装置、设备及存储介质，可以提高组播业务的数据传输效率。所述技术方案如下：
第一方面，提供了一种数据传输方法，所述方法包括：
接收指示信息；
根据所述指示信息确定第一DCI检测周期，所述第一DCI检测周期包括n个第二DCI检测周期，每个所述第二DCI检测周期中均存在搜索空间，n为大于或等于2的正整数；
根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对所述第一DCI检测周期中的m个第一传输块进行接收，所述第一目标DCI检测周期是所述n个第二DCI检测周期中的一个，m为正整数。
其中，1≤m≤n。
可选的，所述根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对所述第一DCI检测周期中的m个第一传输块进行接收，包括：
根据所述第一DCI中的调度信息和所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置；
根据所述每个第一传输块的时频位置，对所述m个第一传输块进行接收。
可选的，所述第一DCI中的调度信息包括传输块重复次数信息、调度时延信息和资源分配信息，所述根据所述第一DCI中的调度信息和所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置，包括：
根据所述传输块重复次数信息、所述调度时延信息、所述资源分配信息以及所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置。
可选的，所述根据所述传输块重复次数信息、所述调度时延信息、所述资源分配信息以及所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置，包括：
确定所述m个第一传输块中第i个第一传输块的时频位置，所述第i个第一传输块与第i个第二目标DCI检测周期中的目标时频位置在时域上的间隔根据所述调度时延信息确定，1≤i≤m；
其中，所述第i个第二目标DCI检测周期中的目标时频位置位于搜索空间中，且，所述目标时频位置在所述第二目标DCI检测周期的搜索空间中的位置与所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置相同，所述第二目标DCI检测周期是所述n个第二DCI检测周期中的一个，所述第二目标DCI检测周期中的目标时频位置与所述m个第一传输块中的任一个第一传输块在时域上均不重叠。
可选的，所述第一DCI中的调度信息还包括DCI子帧重复次数信息，所述根据所述传输块重复次数信息、所述调度时延信息、所述资源分配信息以及所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置，包括：
确定所述m个第一传输块中第j个第一传输块的时频位置，所述第j个第一传输块与第j-1个第一传输块在时域上的间隔根据预设时域间隔、所述调度时延信息和所述DCI子帧重复次数信息确定，每个所述第一传输块在时域上的长度根据所述传输块重复次数信息和所述资源分配信息确定，1＜j≤m；
其中，第1个第一传输块与所述第一DCI在时域上的间隔根据所述调度时延信息确定。
可选的，所述方法还包括：
根据在第三目标DCI检测周期的搜索空间中接收到的第二DCI，对所述第三目标DCI检测周期中的第二传输块进行接收；
其中，所述第三目标DCI检测周期是所述n个第二检测周期中的一个，所述第三目标DCI检测周期与所述第一目标DCI检测周期不重叠。
可选的，每个所述第一传输块中承载有组播通信业务的数据。
第二方面，提供了一种数据传输方法，所述方法包括：
向UE发送指示信息，所述指示信息用于指示第一DCI检测周期，所述第一DCI检测周期包括n个第二DCI检测周期，每个所述第二DCI检测周期中均存在搜索空间，n为大于或等于2的正整数；
在所述第一DCI检测周期中发送m个第一传输块，m为正整数；
在第一目标DCI检测周期的搜索空间中发送第一DCI，所述第一DCI用于调度所述m 个第一传输块，所述第一目标DCI检测周期是所述n个第二DCI检测周期中的一个。
可选的，1≤m≤n。
可选的，所述第一DCI中的调度信息和所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置用于指示所述m个第一传输块中每个第一传输块的时频位置。
可选的，所述第一DCI中的调度信息包括传输块重复次数信息、调度时延信息和资源分配信息；
所述传输块重复次数信息、所述调度时延信息、所述资源分配信息以及所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置用于指示所述m个第一传输块中每个第一传输块的时频位置。
可选的，所述m个第一传输块中的第i个第一传输块与第i个第二目标DCI检测周期中的目标时频位置在时域上的间隔由所述调度时延信息指示，1≤i≤m；
其中，所述第i个第二目标DCI检测周期中的目标时频位置位于搜索空间中，且，所述目标时频位置在所述第二目标DCI检测周期的搜索空间中的位置与所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置相同，所述第二目标DCI检测周期是所述n个第二DCI检测周期中的一个，所述第二目标DCI检测周期中的目标时频位置与所述m个第一传输块中的任一个第一传输块在时域上均不重叠。
可选的，所述第一DCI中的调度信息还包括DCI子帧重复次数信息，所述m个第一传输块中的第j个第一传输块与第j-1个第一传输块在时域上的间隔由预设时域间隔、所述调度时延信息和所述DCI子帧重复次数信息指示，每个所述第一传输块在时域上的长度由所述传输块重复次数信息和所述资源分配信息指示，1＜j≤m；
其中，第1个第一传输块与所述第一DCI在时域上的间隔由所述调度时延信息指示。
可选的，所述方法还包括：
在第三目标DCI检测周期中发送第二传输块；
在所述第三目标DCI检测周期的搜索空间中发送第二DCI，所述第二DCI用于调度所述第二传输块；
其中，所述第三目标DCI检测周期是所述n个第二检测周期中的一个，所述第三目标DCI检测周期与所述第一目标DCI检测周期不重叠。
可选的，每个所述第一传输块中承载有组播通信业务的数据。
第三方面，提供了一种数据传输装置，该装置包括至少一个模块，该至少一个模块用于实现上述第一方面或第一方面的任一可选方式所提供的数据传输方法。
第四方面，提供了一种数据传输装置，该装置包括至少一个模块，该至少一个模块用于实现上述第二方面或第二方面的任一可选方式所提供的数据传输方法。
第五方面，提供了一种通信装置，所述通信装置包括：处理器和存储器；
所述处理器被配置为执行所述存储器中存储的指令，所述处理器通过执行所述指令来实现上述第一方面或第一方面的任一可选方式所提供的数据传输方法。
第六方面，提供了一种通信装置，所述通信装置包括：处理器和存储器；
所述处理器被配置为执行所述存储器中存储的指令，所述处理器通过执行所述指令来实现上述第二方面或第二方面的任一可选方式所提供的数据传输方法。
第七方面，提供了一种通信系统，所述通信系统包括如上述第三方面任一所述的数据传 输装置和如上述第四方面任一所述的数据传输装置。
第八方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当所述指令在处理器上运行时，使得所述处理器执行上述第一方面或第一方面的任一可选方式所提供的数据传输方法，或者，使得所述处理器执行上述第二方面或第二方面的任一可选方式所提供的数据传输方法。
第九方面，提供了一种计算机程序产品，所述计算机程序产品中存储有指令，当其在计算机上运行时，使得计算机能够执行本申请实施例提供的数据传输方法。
第十方面，提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片运行时能够执行本申请实施例提供的数据传输方法。
本申请实施例提供的技术方案带来的有益效果至少包括：
通过UE接收指示信息，并根据该指示信息确定第一DCI检测周期，其中，该第一DCI检测周期包括n个第二DCI检测周期，每个第二DCI检测周期中均存在搜索空间，而后，根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对第一DCI检测周期中的m个第一传输块进行接收，该第一目标DCI检测周期是n个第二DCI检测周期中的一个，这样，UE只需要在n个第二DCI检测周期中的一个第二DCI检测周期中接收第一DCI，就能够对n个第二DCI检测周期中的m个传输块进行接收，而不需要在n个第二DCI检测周期中的每个第二DCI检测周期中进行DCI的接收，因此，可以提高组播业务的数据的传输效率。
附图说明
图1是一种DCI检测周期的示意图。
图2是一种UE接收传输块的示意图。
图3是本申请实施例提供的一种实施环境的示意图。
图4是本申请实施例提供的一种数据传输方法的流程图。
图5是本申请实施例提供的一种基站在第一DCI检测周期中发送的第一传输块的示意图。
图6是本申请实施例提供的一种基站在第一DCI检测周期中发送的第一传输块的示意图。
图7是本申请实施例提供的一种基站在第一DCI检测周期中发送的第一传输块的示意图。
图8是本申请实施例提供的一种基站在第一DCI检测周期中发送的第一传输块的示意图。
图9是本申请实施例提供的一种第一目标DCI检测周期的示意图。
图10是本申请实施例提供的一种基站在第一DCI检测周期中发送第一DCI的示意图。
图11是本申请实施例提供的一种UE根据第一DCI接收m个第一传输块的示意图。
图12是本申请实施例提供的一种UE根据第一DCI接收m个第一传输块的示意图。
图13是本申请实施例提供的一种UE根据第一DCI接收m个第一传输块的示意图。
图14是本申请实施例提供的一种UE根据第一DCI接收m个第一传输块的示意图。
图15是本申请实施例提供的一种UE根据第一DCI接收m个第一传输块的示意图。
图16是本申请实施例提供的一种数据传输装置的框图。
图17是本申请实施例提供的一种数据传输装置的框图。
图18是本申请实施例提供的一种数据传输装置的框图。
图19是本申请实施例提供的一种数据传输装置的框图。
图20是本申请实施例提供的一种数据传输装置的框图。
图21是本申请实施例提供的一种数据传输装置的框图。
图22是本申请实施例提供的一种数据传输系统的框图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
组播业务在无线通信系统中的应用较为广泛，其中，单小区点对多点(英文：Single Cell Point to Multi-point；简称：SC-PTM)的组播业务在窄带物联网(英文：Narrow Band Internet of Thing；简称：NB-IoT)中的应用已经成为了当前的一个研究热点。
SC-PTM业务的数据可以在两类逻辑信道上进行传输，该两类逻辑信道分别为：单小区组播控制信道(英文：Single Cell Multicast Control Channel；简称：SC-MCCH)和单小区组播业务信道(英文：Single Cell Multicast Traffic Channel；简称：SC-MTCH)。
其中，SC-MCCH是控制信道，其用于承载SC-PTM业务的控制信息，SC-MTCH是业务信道，其用于承载SC-PTM业务的业务数据。通常情况下，SC-MTCH和SC-MCCH上承载的数据是以传输块(英文：Transport Block；简称：TB)的形式进行传输的。
实际应用中，无论是SC-MCCH，还是SC-MTCH在物理层上均承载于物理下行共享信道(英文：Physical Downlink Shared Channel；简称：PDSCH)中，需要指出的是，这里的PDSCH可以是NPDSCH(英文：Narrowband PDSCH)。
通常情况下，为了获取PDSCH上承载的数据，用户设备(英文：User Equipment；简称：UE)需要在搜索空间(英文：Search Space；简称：SS)中接收下行控制信息(英文：Downlink Control Information；简称：DCI)，并根据接收到的DCI的调度来接收PDSCH上承载的数据。
因此，在SC-PTM业务中，UE也需要在搜索空间中接收DCI，以根据DCI的调度接收承载于SC-MTCH或SC-MCCH上的传输块。
相关技术中，UE可以接收基站发送的系统消息，该系统消息可以包括参数R max、G和α offset，其中，表1为参数R max、G和α offset可能的取值范围。
表1
参数 取值范围
R max {1,2,4,8,16,32,64,128,256,512,1024,2048}
G {1.5,2,4,8,16,32,48,64}
α offset {0,1/8,1/4,3/8,1/2,5/8,3/4,7/8}
UE可以将R max和G的乘积获取为DCI检测周期在时域上的长度，其中，每个DCI检测周期中均存在一个搜索空间。同时，UE可以将R max获取为DCI检测周期中的搜索空间在时域上的长度。此外，UE还可以将R max、G和α offset三者的乘积获取为DCI检测周期中搜索空间在时域上的起始位置与DCI检测周期在时域上的起始位置的间隔。
UE在接收到该系统消息后，可以根据该系统消息包括的参数R max、G和α offset在每个DCI检测周期中确定搜索空间的时频位置，并按照DCI在搜索空间中可能的时频位置(例如， candidate的位置)在每个DCI检测周期的搜索空间中接收DCI，在接收到DCI后，UE可以根据该DCI的调度在PDSCH上接收承载于SC-MTCH或SC-MCCH上的传输块。
换句话说，在相关技术中，UE需要在每一搜索空间中接收DCI，以根据在每一搜索空间中接收到的DCI的调度在PDSCH上接收承载于SC-MTCH或SC-MCCH上的传输块。
图1为针对SC-MTCH逻辑信道的一个DCI检测周期的示意图，如图1所示，该DCI检测周期在时域上的长度为R max*G，该DCI检测周期中的搜索空间在时域上的长度为R max，该DCI检测周期中的搜索空间在时域上的起始位置与DCI检测周期在时域上的起始位置的间隔为R max*G*α offset。搜索空间中存在15种DCI可能的时频位置，也即是15种candidate，其中，第0至第7种candidate在时域上的长度等于R max的8分之1，第8至第11种candidate在时域上的长度等于R max的4分之1，第12和第13种candidate在时域上的长度等于R max的2分之1，第14种candidate在时域上的长度等于R max。
需要指出的是，在SC-PTM业务中，针对SC-MCCH逻辑信道的DCI检测周期与针对SC-MTCH逻辑信道的DCI检测周期是类似的，其区别仅在于针对SC-MCCH逻辑信道的DCI检测周期中candidate共有8种，且每种candidate在时域上的起始位置均与搜索空间在时域上的起始位置相同。
图2为相关技术中UE接收传输块的示意图，如图2所示，UE可以在每一DCI检测周期的搜索空间中接收DCI，并根据接收到的DCI的调度接收对应的传输块。
然而，相关技术中对每一搜索空间中的DCI进行接收，并根据在每一搜索空间中接收到的DCI对传输块进行接收的方式会影响组播业务的数据传输效率。
本申请实施例提供了一种数据传输方法，可以提高组播业务的数据传输效率。在该数据传输方法中，UE可以接收指示信息，并根据该指示信息确定第一DCI检测周期，其中，该第一DCI检测周期包括n个第二DCI检测周期，每个第二DCI检测周期中均存在搜索空间，而后，根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对第一DCI检测周期中的m个第一传输块进行接收，该第一目标DCI检测周期是n个第二DCI检测周期中的一个，这样，UE只需要在n个第二DCI检测周期中的一个第二DCI检测周期中接收第一DCI，就能够对n个第二DCI检测周期中的m个传输块进行接收，而不需要在n个第二DCI检测周期中的每个第二DCI检测周期中进行DCI的接收，因此，可以提高组播业务的数据的传输效率。
图3为本申请实施例提供的数据传输方法所涉及到的实施环境的示意图。如图3所示，该实施环境可以包括基站10和UE 20。基站10和UE 20可以通过通信网络进行连接，UE 20可以为基站10所服务的任一个UE。其中，上述通信网络可以为NB-IoT通信网络。
图4所示为本申请实施例提供的一种数据传输方法的流程图，该数据传输方法可以应用于图3所示的实施环境中，如图4所示，该数据传输方法可以包括以下步骤：
步骤401、基站向UE发送指示信息。
该指示信息用于指示第一DCI检测周期，也即是，该指示信息用于供UE确定第一DCI检测周期，该第一DCI检测周期可以包括n个第二DCI检测周期，每个第二DCI检测周期中均存在一个搜索空间，n为大于或等于2的正整数。
其中，该第二DCI检测周期可以为图1所示的DCI检测周期。如上所述，该第二DCI检测周期可以由UE根据系统消息中包括的参数R max、G和α offset确定，也即是，该第二DCI检测周期在时域上的长度可以为R max和G的乘积，该第二DCI检测周期的搜索空间在时域上的长度可以为R max，该第二DCI检测周期的搜索空间在时域上的起始位置与第二DCI检测周期在时域上的起始位置之间的间隔可以为R max、G和α offset三者的乘积。
在本申请的一个实施例中，该指示信息可以用于指示第一DCI检测周期中包括的第二DCI检测周期的个数n。
在本申请的另一个实施例中，该指示信息可以指示第一DCI检测周期在时域上的长度，其中，该第一DCI检测周期在时域上的长度可以为第二DCI检测周期在时域上的长度的整数倍(该整数倍不包括1倍)。
步骤402、UE接收指示信息，并根据该指示信息确定第一DCI检测周期。
UE在接收到基站发送的指示信息后，可以根据该指示信息确定第一DCI检测周期。
步骤403、基站在第一DCI检测周期中发送m个第一传输块，m为正整数。
其中，该第一传输块中可以承载有组播业务的数据。可选的，该第一传输块中可以承载有SC-PTM业务的数据，进一步地，该第一传输块可以承载SC-MCCH的数据，或者，该第一传输块可以承载SC-MTCH的数据。需要指出的是，该m个第一传输块中不同的第一传输块上可以承载有不同的通信数据，或者，该m个第一传输块中某些不同的第一传输块上可以承载有相同的通信数据，本申请实施例对此不作具体限定。
还需要指出的是，基站在第一DCI检测周期中发送的第一传输块在时域上可以完全位于该第一DCI检测周期中，也可以部分位于该第一DCI检测周期中。换句话说，基站在第一DCI检测周期中发送的第一传输块在时域上可以不跨越第一DCI检测周期的时域边界，也可以跨越第一DCI检测周期的时域边界。
图5为基站在第一DCI检测周期A中发送的第一传输块a的示意图，如图5所示，该第一传输块a在时域上完全位于第一DCI检测周期A中，也即是，该第一传输块a在时域上没有跨越第一DCI检测周期A的时域边界。
图6为基站在第一DCI检测周期A中发送的第一传输块b的示意图，如图6所示，该第一传输块b在时域上一部分位于第一DCI检测周期A中，另一部分位于第一DCI检测周期B中，换句话说，该第一传输块b在时域上跨越了第一DCI检测周期A的时域边界。
还需要指出的是，基站在第一DCI检测周期中发送的第一传输块在时域上可以完全位于某一第二DCI检测周期中，也可以部分位于某一第二DCI检测周期中。换句话说，基站在第一DCI检测周期中发送的第一传输块在时域上可以不跨越第二DCI检测周期的时域边界，也可以跨越第二DCI检测周期的时域边界。
图7为基站在第一DCI检测周期A中发送的第一传输块c的示意图，如图7所示，该第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，该第一传输块c在时域上完全位于第二DCI检测周期w1中，也即是，该第一传输块c在时域上没有跨越第二DCI检测周期的时域边界。
图8为基站在第一DCI检测周期A中发送的第一传输块d的示意图，如图7所示，该第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二 DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，该第一传输块d在时域上一部分位于第二DCI检测周期w1中，另一部分位于第二DCI检测周期w2中，也即是，该第一传输块d在时域上跨越了第二DCI检测周期w1的时域边界。
步骤404、基站在第一目标DCI检测周期的搜索空间中发送第一DCI。
该第一目标DCI检测周期是第一DCI检测周期包括的n个第二DCI检测周期中的一个。可选的，该第一目标DCI检测周期可以是该n个第二DCI检测周期中在时域上最靠前的第二DCI检测周期。
图9为第一目标DCI检测周期的示意图，如图9所示，第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，其中，第二DCI检测周期w1是该4个第二DCI检测周期中在时域上最靠前的第二DCI检测周期，则该第二DCI检测周期w1即为第一目标DCI检测周期。
基站可以在第一目标DCI检测周期的搜索空间中发送第一DCI，其中，该第一DCI用于调度基站在第一DCI检测周期中发送的该m个第一传输块，也即是，该第一DCI用于供UE根据该第一DCI接收基站在第一DCI检测周期中发送的该m个第一传输块。这样，就可以使UE只需要在n个第二DCI检测周期中的一个第二DCI检测周期(也即是第一目标DCI检测周期)中接收第一DCI，就能够对该n个第二DCI检测周期中的m个第一传输块进行接收，而不需要在n个第二DCI检测周期中的每个第二DCI检测周期中都进行DCI的接收，因此，可以提高组播业务(例如SC-PTM业务)的数据的传输效率。
当然，实际应用中，无线通信系统还可能存在着一些仅支持在每个搜索空间中接收DCI，并根据在每个搜索空间中接收到的DCI进行传输块的接收的旧版本的UE，为了方便叙述，以下将这些旧版本的UE统称为目标UE。
为了使无线通信系统能够向下兼容这些目标UE，保证这些目标UE能够正常工作，在m大于1时，基站还可以分别在m-1个第二DCI检测周期的搜索空间中发送m-1个第一DCI，其中，上述m-1个第二DCI检测周期不包括第一目标DCI检测周期，且，在该m-1个第二DCI检测周期的搜索空间中分别发送的该m-1个第一DCI和在第一目标DCI检测周期中发送的第一DCI(共m个第一DCI)与上述m个第一传输块一一对应，每个第一DCI用于调度对应的第一传输块。
例如，请参考图10，第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，基站可以在该第一DCI检测周期中发送4个第一传输块，为了向下兼容目标UE，基站除了可以在第二DCI检测周期w1(也即是第一目标DCI检测周期)的搜索空间中发送第一DCI之外，还可以分别在第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4的搜索空间中发送第一DCI，也即是，基站可以在该第一DCI检测周期中发送4个第一DCI，其中，该4个第一DCI与该4个第一传输块一一对应，且，每个第一DCI用于调度对应的第一传输块，这样，对于目标UE而言，其可以在每个搜索空间中均进行DCI的接收，并可以根据在每个搜索空间中接收到的第一DCI的调度接收对应的第一传输块。
步骤405、UE根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对第一 DCI检测周期中的m个第一传输块进行接收。
本申请实施例提供了两种根据第一DCI对m个第一传输块进行接收的方式，下文中本申请实施例将对其一一进行说明：
第一种方式、UE可以根据第一DCI中的调度信息以及第一DCI在第一目标DCI检测周期的搜索空间中的时频位置确定该m个第一传输块中每个第一传输块的时频位置，并根据该每个第一传输块的时频位置对该m个第一传输块进行接收。
其中，第一DCI在搜索空间中的时频位置指的是该第一DCI在搜索空间中所处的candidate的位置。第一DCI的调度信息可以包括传输块重复次数信息、调度时延信息、资源分配信息和DCI子帧重复次数信息。
1、传输块重复次数信息位于第一DCI的重复发送次数域(英文：repetition number field)中，UE可以根据该传输块重复次数信息确定组播业务的数据在第一传输块中的重复次数。
2、调度时延信息位于第一DCI的调度时延域(英文：scheduling delay field)中，UE可以根据该调度时延信息确定目标传输块与第一DCI在时域上的间隔，该目标传输块指的是该m个第一传输块中在时域上最靠前的第一传输块，所谓在时域上最靠前指的是该目标传输块包括的第一个子帧在时域上最靠前。
其中，若子帧n0是目标传输块包括的第一个有效下行子帧，子帧n是第一DCI包括的最后一个子帧，则目标传输块与第一DCI在时域上的间隔k0指的是子帧n和子帧n0在时域上的间隔。
3、资源分配信息位于第一DCI的资源分配域(英文：resource assignment field)中，UE可以根据该资源分配信息确定第一传输块包括的子帧的个数。
4、DCI子帧重复次数信息位于第一DCI的DCI子帧重复次数域(英文：DCI subframe repetition number field)中，UE可以根据该DCI子帧重复次数信息确定第一DCI在时域上的长度。
在确定了每个第一传输块的时频位置后，UE可以根据该每个第一传输块的时频位置以及第一DCI包括的调制与编码策略(英文：Modulation and coding scheme；简称：MCS)信息、传输块重复次数信息和资源分配信息对每个第一传输块进行接收。
换句话说，UE可以根据第一DCI的调度对该m个第一传输块中的每个第一传输块进行接收，这样，UE就只需要在n个第二DCI检测周期中的一个第二DCI检测周期(也即是第一目标DCI检测周期)中接收第一DCI，就能够对该n个第二DCI检测周期中的m个第一传输块进行接收，而不需要在n个第二DCI检测周期中的每个第二DCI检测周期中都进行DCI的接收，因此，可以提高组播业务(例如SC-PTM业务)的数据的传输效率，同时也可以降低UE的功耗。
在一种可能的实现方式中，UE可以根据该传输块重复次数信息、该调度时延信息、该资源分配信息和第一DCI在第一目标DCI检测周期的搜索空间中的时频位置，确定该m个第一传输块中每个第一传输块的时频位置。
在这种实现方式中，UE可以根据第一DCI中的传输块重复次数信息和资源分配信息确定第一传输块在时域上的长度，该长度可以由下述公式得到：
N＝N rep×N SF。
其中，N为第一传输块在时域上的长度，N rep为传输块重复次数信息所指示的数值，N SF 为资源分配信息所指示的数值。
接着，UE可以从该n个第二DCI检测周期中确定第1个第二目标DCI检测周期，其中，某一第二目标DCI检测周期的序号用于指示该第二目标DCI检测周期在时域上的排序，也即是，第k个第二目标DCI检测周期在时域上位于第k-1个第二目标DCI检测周期之后，位于第k+1个第二目标DCI检测周期之前。
第二目标DCI检测周期的搜索空间中的目标时频位置与该m个第一传输块中任一个第一传输块在时域上均不重叠。该目标时频位置在第二目标DCI检测周期的搜索空间中的位置与第一DCI在第一目标DCI检测周期的搜索空间中的时频位置相同，也即是，该目标时频位置在搜索空间中所处的candidate的位置与第一DCI在搜索空间中所处的candidate的位置相同。
需要指出的是，所谓目标时频位置在第二目标DCI检测周期的搜索空间中的位置与第一DCI在第一目标DCI检测周期的搜索空间中的时频位置相同指的是：目标时频位置相对于第二目标DCI检测周期的搜索空间在时域上的起始位置与第一DCI相对于第一目标DCI检测周期的搜索空间在时域上的起始位置相同。
通常情况下，当第一目标DCI检测周期是该n个第二DCI检测周期中在时域上最靠前的第二DCI检测周期时，该第1个第二目标DCI检测周期可以为该第一目标DCI检测周期。
在确定了第1个第二目标DCI检测周期之后，UE可以根据该第1个第二目标DCI检测周期中的目标时频位置确定该m个第一传输块中第1个第一传输块的时频位置，其中，该第1个第二目标DCI检测周期中的目标时频位置与该第1个第一传输块在时域上的间隔可以由UE根据调度时延信息确定。
同理地，某一第一传输块的序号用于指示该第一传输块在时域上的排序，也即是，第k个第一传输块在时域上位于第k-1个第一传输块之后，位于第k+1个第一传输块之前。
第i个第一传输块与第i个第二目标DCI检测周期中的目标时频位置在时域上的间隔指的是：该第i个第一传输块在时域上的起始位置与该第i个第二目标DCI检测周期中的目标时频位置在时域上的终止位置之间的间隔。
在确定了第1个第一传输块的时频位置后，UE可以根据该第1个第一传输块的时频位置以及第一传输块在时域上的长度，确定第2个第二目标DCI检测周期，该第2个第二目标DCI检测周期是搜索空间中的目标时频位置不与第1个第一传输块在时域上重叠的至少一个第二DCI检测周期中在时域上最靠前的第二DCI检测周期。
在确定了第2个第二目标DCI检测周期后，UE可以根据该第2个第二目标DCI检测周期中的目标时频位置确定该m个第一传输块中第2个第一传输块的时频位置，其中，该第2个第二目标DCI检测周期中的目标时频位置与该第2个第一传输块在时域上的间隔可以由UE根据调度时延信息确定。
以此类推，UE可以确定第3个至第m个第一传输块的时频位置。
由以上说明可知：该m个第一传输块中第i个第一传输块的时频位置与第i个第二目标DCI检测周期中的目标时频位置在时域上的间隔可以由UE根据调度时延信息确定，1≤i≤m；
其中，第i个第二目标DCI检测周期中的目标时频位置位于搜索空间中，且，该目标时频位置在第二目标DCI检测周期的搜索空间中的位置与第一DCI在第一DCI检测周期的搜索空间中的时频位置相同，第二目标DCI检测周期是UE根据传输块重复次数信息和资源分配信息从该n个第二DCI检测周期中确定的，第二目标DCI检测周期中的目标时频位置与m 个第一传输块中的任一个第一传输块在时域上均不重叠。
由于第二目标DCI检测周期的个数最少为1个，最多为n个，因此，根据上述说明可知m的值最小可以为1，最大可以为n。
图11为UE根据第一DCI接收m个第一传输块的示意图。如图11所示，第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，基站可以在第二DCI检测周期w1(也即是第一目标DCI检测周期)的搜索空间中发送第一DCI，同时基站可以在第一DCI检测周期A中发送4个第一传输块。
如图11所示，由于第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4中的目标时频位置均与任一第一传输块在时域上不重叠，因此，该4个第二DCI检测周期均为第二目标DCI检测周期，其中，第1个第二目标DCI检测周期为第二DCI检测周期w1，第2个第二目标DCI检测周期为第二DCI检测周期w2，第3个第二目标DCI检测周期为第二DCI检测周期w3，第4个第二目标DCI检测周期为第二DCI检测周期w4，UE可以根据第1个第二目标DCI检测周期(也即是第二DCI检测周期w1)中的目标时频位置确定第1个第一传输块的时频位置，根据第2个第二目标DCI检测周期(也即是第二DCI检测周期w2)中的目标时频位置确定第2个第一传输块的时频位置，根据第3个第二目标DCI检测周期(也即是第二DCI检测周期w3)中的目标时频位置确定第3个第一传输块的时频位置，根据第4个第二目标DCI检测周期(也即是第二DCI检测周期w4)中的目标时频位置确定第4个第一传输块的时频位置。
图12为UE根据第一DCI接收m个第一传输块的另一示意图。如图12所示，第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，基站可以在第二DCI检测周期w1(也即是第一目标DCI检测周期)的搜索空间中发送第一DCI，同时基站可以在第一DCI检测周期A中发送2个第一传输块。
如图12所示，由于第二DCI检测周期w1和第二DCI检测周期w3中的目标时频位置与任一第一传输块在时域上不重叠，因此，第二DCI检测周期w1和第二DCI检测周期w3为第二目标DCI检测周期，其中，第1个第二目标DCI检测周期为第二DCI检测周期w1，第2个第二目标DCI检测周期为第二DCI检测周期w3，UE可以根据第1个第二目标DCI检测周期(也即是第二DCI检测周期w1)中的目标时频位置确定第1个第一传输块的时频位置，根据第2个第二目标DCI检测周期(也即是第二DCI检测周期w3)中的目标时频位置确定第2个第一传输块的时频位置。
图13为UE根据第一DCI接收m个第一传输块的又一示意图。如图13所示，第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，基站可以在第二DCI检测周期w1(也即是第一目标DCI检测周期)的搜索空间中发送第一DCI，同时基站可以在第一DCI检测周期A中发送1个第一传输块。
如图13所示，由于第二DCI检测周期w1中的目标时频位置与任一第一传输块在时域上不重叠，因此，第二DCI检测周期w1为第二目标DCI检测周期，其中，第1个第二目标DCI检测周期也即是该第二DCI检测周期w1，UE可以根据第1个第二目标DCI检测周期(也即 是第二DCI检测周期w1)中的目标时频位置确定第1个第一传输块的时频位置。
在另一种可能的实现方式中，UE可以根据该传输块重复次数信息、该调度时延信息、该资源分配信息、该DCI子帧重复次数信息和第一DCI在搜索空间中的时频位置，确定该m个第一传输块中每个第一传输块的时频位置。
在这种实现方式中，UE可以利用上文所述的公式，根据第一DCI中的传输块重复次数信息和资源分配信息确定第一传输块在时域上的长度。
同时，UE可以根据第一DCI的时频位置以及调度时延信息确定该m个第一传输块中第1个第一传输块的时频位置，也即是，确定该m个第一传输块中第1个第一传输块在时域上的起始位置。
在确定了第1个第一传输块的时频位置之后，UE可以根据第一传输块在时域上的长度确定该第1个第一传输块在时域上的终止位置。
接着，UE可以根据预设时域间隔、DCI子帧重复次数信息和调度时延信息确定第1个第一传输块和第2个第一传输块在时域上的间隔，可选的，该预设时域间隔可以为12毫秒。
需要指出的是，第1个第一传输块和第2个第一传输块在时域上的间隔指的是：第1个第一传输块在时域上的终止位置与第2个第一传输块在时域上的起始位置之间的间隔。
UE可以根据第1个第一传输块和第2个第一传输块在时域上的间隔以及该第1个第一传输块在时域上的终止位置确定第2个第一传输块的时频位置，也即是，确定第2个第一传输块在时域上的起始位置。
以此类推，UE可以确定第3个至第m个第一传输块的时频位置。
由以上说明可知：该m个第一传输块中第j个第一传输块的时频位置与第j-1个第一传输块在时域上的间隔可以由UE根据预设时域间隔、调度时延信息和DCI子帧重复次数信息确定，每个第一传输块在时域上的长度可以由UE根据传输块重复次数信息和资源分配信息确定，1＜j≤m，其中，第1个第一传输块与第一DCI在时域上的间隔可以由UE根据调度时延信息确定。
图14为UE根据第一DCI接收m个第一传输块的示意图。如图14所示，第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，基站可以在第二DCI检测周期w1(也即是第一目标DCI检测周期)的搜索空间中发送第一DCI，同时基站可以在第一DCI检测周期A中发送2个第一传输块。
其中，第1个第一传输块与第一DCI在时域上的间隔可以由UE根据调度时延信息确定，该第1个第一传输块在时域上的长度可以由UE根据第一DCI中的传输块重复次数信息和资源分配信息，第1个第一传输块与第2个第一传输块在时域上的间隔可以由UE根据预设时域间隔、调度时延信息和DCI子帧重复次数信息确定。
第二种方式、UE可以在第一DCI检测周期包括的每个第二DCI检测周期的搜索空间中接收DCI，当没有在某一第二DCI检测周期的搜索空间中接收到DCI时，UE可以根据第一DCI接收该第二DCI检测周期中的第一传输块，当在某一第二DCI检测周期(以下称为第三目标DCI检测周期)的搜索空间中接收到第二DCI时，UE可以根据第二DCI对第三目标DCI检测周期中的第二传输块进行接收，其中，该第三目标DCI检测周期与第一目标DCI检测周期不同。
需要指出的是，第二DCI和第一DCI可以不同，且，第二DCI在搜索空间中的时频位置与第一DCI在搜索空间中的时频位置也可以不同，也即是，第二DCI所处的candidate的位置与第一DCI所处的candidate的位置可以不同。
这里所谓“第二DCI和第一DCI可以不同”指的是第二DCI的调度信息所指示的内容与第一DCI的调度信息所指示的内容可以不同，例如，第二DCI中的传输块重复次数信息所指示的数值与第一DCI中的传输块重复次数信息所指示的数值可以不同，第二DCI中的调度时延信息所指示的数值与第一DCI中的调度时延信息所指示的数值可以不同等等。
由于第二DCI和第一DCI可以不同，因此，由第二DCI所调度的第二传输块在时域上的长度或MCS等可以与由第一DCI所调度的第一传输块不同。这样，就可以使基站在第一DCI检测周期中发送不同种类的传输块，从而可以提高基站对传输块发送的灵活性。
图15为UE根据第一DCI接收m个第一传输块的示意图。如图15所示，第一DCI检测周期A可以包括4个第二DCI检测周期，该4个第二DCI检测周期分别为第二DCI检测周期w1、第二DCI检测周期w2、第二DCI检测周期w3和第二DCI检测周期w4，基站可以在第二DCI检测周期w1(也即是第一目标DCI检测周期)的搜索空间中发送第一DCI，在第二DCI检测周期w2的搜索空间中发送第二DCI，同时基站可以在第二DCI检测周期w1、第二DCI检测周期w3、第二DCI检测周期w4中发送第一传输块，在第二DCI检测周期w2中发送第二传输块。
UE可以根据第一DCI的调度接收第二DCI检测周期w1中的第一传输块，同时，由于UE在第二DCI检测周期w3和第二DCI检测周期w4中接收不到DCI，因此，UE可以根据第一DCI接收第二DCI检测周期w3和第二DCI检测周期w4中的第一传输块，由于UE在第二DCI检测周期w2中接收到了第二DCI，因此，UE可以根据第二DCI接收第二DCI检测周期w2中的第二传输块。
综上所述，本申请实施例提供的数据传输方法，通过UE接收指示信息，并根据该指示信息确定第一DCI检测周期，其中，该第一DCI检测周期包括n个第二DCI检测周期，每个第二DCI检测周期中均存在搜索空间，而后，根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对第一DCI检测周期中的m个第一传输块进行接收，该第一目标DCI检测周期是n个第二DCI检测周期中的一个，这样，UE只需要在n个第二DCI检测周期中的一个第二DCI检测周期中接收第一DCI，就能够对n个第二DCI检测周期中的m个传输块进行接收，而不需要在n个第二DCI检测周期中的每个第二DCI检测周期中进行DCI的接收，因此，可以提高组播业务的数据的传输效率。
下述为本申请的装置实施例，可以用于执行本申请的方法实施例。对于本申请装置实施例中未披露的细节，请参照本申请方法实施例。
请参考图16，其示出了本申请实施例提供的一种数据传输装置500的框图。该数据传输装置500可以为UE，参见图16，该数据传输装置500可以包括第一接收模块501、周期确定模块502和第二接收模块503。
该第一接收模块501，用于接收指示信息。
该周期确定模块502，用于根据该指示信息确定第一DCI检测周期，该第一DCI检测周期包括n个第二DCI检测周期，每个该第二DCI检测周期中均存在搜索空间，n为大于或等 于2的正整数。
该第二接收模块503，用于根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对该第一DCI检测周期中的m个第一传输块进行接收，该第一目标DCI检测周期是该n个第二DCI检测周期中的一个，m为正整数。
在本申请的一个实施例中，1≤m≤n。
在本申请的一个实施例中，该第二接收模块503，包括：
位置确定子模块，用于根据该第一DCI中的调度信息和该第一DCI在第一DCI检测周期的搜索空间中的时频位置，确定该m个第一传输块中每个第一传输块的时频位置；
接收子模块，用于根据该每个第一传输块的时频位置，对该m个第一传输块进行接收。
在本申请的一个实施例中，该第一DCI中的调度信息包括传输块重复次数信息、调度时延信息和资源分配信息，该位置确定子模块，用于：根据该传输块重复次数信息、该调度时延信息、该资源分配信息以及该第一DCI在第一DCI检测周期的搜索空间中的时频位置，确定该m个第一传输块中每个第一传输块的时频位置。
在本申请的一个实施例中，该位置确定子模块，用于：
确定该m个第一传输块中第i个第一传输块的时频位置，该第i个第一传输块与第i个第二目标DCI检测周期中的目标时频位置在时域上的间隔根据该调度时延信息确定，1≤i≤m；
其中，该第i个第二目标DCI检测周期中的目标时频位置位于搜索空间中，且，该目标时频位置在该第二目标DCI检测周期的搜索空间中的位置与该第一DCI在第一DCI检测周期的搜索空间中的时频位置相同，该第二目标DCI检测周期是n个第二DCI检测周期中的一个，该第二目标DCI检测周期中的目标时频位置与该m个第一传输块中的任一个第一传输块在时域上均不重叠。
在本申请的一个实施例中，该第一DCI中的调度信息还包括DCI子帧重复次数信息，该位置确定子模块，用于：
确定该m个第一传输块中第j个第一传输块的时频位置，该第j个第一传输块与第j-1个第一传输块在时域上的间隔根据预设时域间隔、该调度时延信息和该DCI子帧重复次数信息确定，每个该第一传输块在时域上的长度根据该传输块重复次数信息和该资源分配信息确定，1＜j≤m；
其中，第1个第一传输块与该第一DCI在时域上的间隔根据该调度时延信息确定。
在本申请的一个实施例中，每个该第一传输块中承载有组播通信业务的数据。
如图17所示，本申请还提供了一种数据传输装置600，该数据传输装置600除了包括数据传输装置500包括的各模块外，还包括第三接收模块504。
该第三接收模块504，用于根据在第三目标DCI检测周期的搜索空间中接收到的第二DCI，对该第三目标DCI检测周期中的第二传输块进行接收，其中，该第三目标DCI检测周期是该n个第二检测周期中的一个，该第三目标DCI检测周期与该第一目标DCI检测周期不重叠。
需要指出的是，上述第一接收模块501、第二接收模块502和第三接收模块504可以是相同的接收模块，也可以是不同的接收模块，本申请实施例对此不做具体限定。
综上所述，本申请实施例提供的数据传输装置，通过接收指示信息，并根据该指示信息确定第一DCI检测周期，其中，该第一DCI检测周期包括n个第二DCI检测周期，每个第二DCI检测周期中均存在搜索空间，而后，根据在第一目标DCI检测周期的搜索空间中接收 到的第一DCI，对第一DCI检测周期中的m个第一传输块进行接收，该第一目标DCI检测周期是n个第二DCI检测周期中的一个，这样，UE只需要在n个第二DCI检测周期中的一个第二DCI检测周期中接收第一DCI，就能够对n个第二DCI检测周期中的m个传输块进行接收，而不需要在n个第二DCI检测周期中的每个第二DCI检测周期中进行DCI的接收，因此，可以提高组播业务的数据的传输效率。
请参考图18，其示出了本申请实施例提供的一种数据传输装置700的框图。该数据传输装置700可以为基站，参见图18，该数据传输装置700可以包括第一发送模块701、第二发送模块702和第三发送模块703。
其中，该第一发送模块701，用于向UE发送指示信息，该指示信息用于指示第一DCI检测周期，该第一DCI检测周期包括n个第二DCI检测周期，每个该第二DCI检测周期中均存在搜索空间，n为大于或等于2的正整数。
该第二发送模块702，用于在该第一DCI检测周期中发送m个第一传输块，m为正整数。
该第三发送模块703，用于在第一目标DCI检测周期的搜索空间中发送第一DCI，该第一DCI用于调度该m个第一传输块，该第一目标DCI检测周期是该n个第二DCI检测周期中的一个。
在本申请的一个实施例中，1≤m≤n。
在本申请的一个实施例中，该第一DCI中的调度信息和该第一DCI在第一目标DCI检测周期的搜索空间中的时频位置用于指示该m个第一传输块中每个第一传输块的时频位置。
在本申请的一个实施例中，该第一DCI中的调度信息包括传输块重复次数信息、调度时延信息和资源分配信息；该传输块重复次数信息、该调度时延信息、该资源分配信息以及该第一DCI在第一目标DCI检测周期的搜索空间中的时频位置用于指示该m个第一传输块中每个第一传输块的时频位置。
在本申请的一个实施例中，该m个第一传输块中的第i个第一传输块与第i个第二目标DCI检测周期中的目标时频位置在时域上的间隔由该调度时延信息指示，1≤i≤m；
其中，该第i个第二目标DCI检测周期中的目标时频位置位于搜索空间中，且，该目标时频位置在该第二目标DCI检测周期的搜索空间中的位置与该第一DCI在第一目标DCI检测周期的搜索空间中的时频位置相同，该第二目标DCI检测周期是该n个第二DCI检测周期中的一个，该第二目标DCI检测周期中的目标时频位置与该m个第一传输块中的任一个第一传输块在时域上均不重叠。
在本申请的一个实施例中，该第一DCI中的调度信息还包括DCI子帧重复次数信息，该m个第一传输块中的第j个第一传输块与第j-1个第一传输块在时域上的间隔由预设时域间隔、该调度时延信息和该DCI子帧重复次数信息指示，每个该第一传输块在时域上的长度由该传输块重复次数信息和该资源分配信息指示，1＜j≤m；其中，第1个第一传输块与该第一DCI在时域上的间隔由该调度时延信息指示。
在本申请的一个实施例中，每个该第一传输块中承载有组播通信业务的数据。
如图19所示，本申请还提供了一种数据传输装置800，该数据传输装置800除了包括数据传输装置700包括的各模块外，还包括第四发送模块704、第五发送模块705和第六发送模块707。
在m＞1时，该第四发送模块704，用于分别在m-1个该第二DCI检测周期的搜索空间中发送m-1个该第一DCI，其中，该m-1个第二DCI检测周期不包括该第一目标DCI检测周期，该m-1个第一DCI和在该第一目标DCI检测周期中发送的该第一DCI与该m个第一传输块一一对应，每个该第一DCI用于调度对应的该第一传输块。
第五发送模块705，用于在第三目标DCI检测周期中发送第二传输块。
第六发送模块706，用于在该第三目标DCI检测周期的搜索空间中发送第二DCI，该第二DCI用于调度该第二传输块，其中，该第三目标DCI检测周期是该n个第二检测周期中的一个，该第三目标DCI检测周期与该第一目标DCI检测周期不重叠。
需要指出的是，上述第一发送模块至第六发送模块可以是相同的发送模块，也可以是不同的发送模块，本申请实施例对此不作具体限定。
还需要指出的是，上述数据传输装置700和数据传输装置800还可以包括处理模块，该处理模块用于确定第一DCI检测周期，在这种情况下，上述第一发送模块701可以根据该处理模块确定的第一DCI检测周期发送该指示信息。
综上所述，本申请实施例提供的数据传输装置，通过向UE发送指示信息，以使UE根据该指示信息确定第一DCI检测周期，其中，该第一DCI检测周期包括n个第二DCI检测周期，每个第二DCI检测周期中均存在搜索空间，并在第一DCI检测周期中发送m个第一传输块，在第一目标DCI检测周期的搜索空间中发送第一DCI，以使UE根据该第一DCI对该m个第一传输块进行接收，该第一目标DCI检测周期是n个第二DCI检测周期中的一个，这样，UE只需要在n个第二DCI检测周期中的一个第二DCI检测周期中接收第一DCI，就能够对n个第二DCI检测周期中的m个传输块进行接收，而不需要在n个第二DCI检测周期中的每个第二DCI检测周期中进行DCI的接收，因此，可以提高组播业务的数据的传输效率。
本实施例提供了一种通信装置，该通信装置可以为UE(也可称为终端)，也可以为UE中的电路结构、芯片、芯片系统等结构。本实施例提供了一种终端900，该终端900可以为上述通信装置，该终端900可以用于执行上述实施例提供的数据传输方法中UE所执行的技术过程。参见图20，该终端900包括：
终端900可以包括RF(Radio Frequency，射频)电路910、包括有一个或一个以上计算机可读存储介质的存储器920、输入单元930、显示单元940、传感器950、音频电路960、WiFi(Wireless Fidelity，无线保真)模块970、包括有一个或者一个以上处理核心的处理器980、以及电源190等部件。本领域技术人员可以理解，图20中示出的终端结构并不构成对终端的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。其中：
RF电路910可用于收发信息或通话过程中，信号的接收和发送，特别地，将基站的下行信息接收后，交由一个或者一个以上处理器980处理；另外，将涉及上行的数据发送给基站。通常，RF电路910包括但不限于天线、至少一个放大器、调谐器、一个或多个振荡器、用户身份模块(SIM)卡、收发信机、耦合器、LNA(Low Noise Amplifier，低噪声放大器)、双工器等。此外，RF电路910还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于GSM(Global System of Mobile communication，全球 移动通讯系统)、GPRS(General Packet Radio Service，通用分组无线服务)、CDMA(Code Division Multiple Access，码分多址)、WCDMA(Wideband Code Division Multiple Access,宽带码分多址)、LTE(Long Term Evolution,长期演进)、电子邮件、SMS(Short Messaging Service，短消息服务)等。
存储器920可用于存储软件程序以及模块，处理器980通过运行存储在存储器920的软件程序以及模块，从而执行各种功能应用以及数据处理。存储器920可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据终端900的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器920可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。相应地，存储器920还可以包括存储器控制器，以提供处理器980和输入单元930对存储器920的访问。
输入单元930可用于接收输入的数字或字符信息，以及产生与用户设置以及功能控制有关的键盘、鼠标、操作杆、光学或者轨迹球信号输入。具体地，输入单元930可包括触敏表面931以及其他输入设备932。触敏表面931，也称为触摸显示屏或者触控板，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触敏表面931上或在触敏表面931附近的操作)，并根据预先设定的程式驱动相应的连接装置。可选的，触敏表面931可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器980，并能接收处理器980发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触敏表面931。除了触敏表面931，输入单元930还可以包括其他输入设备932。具体地，其他输入设备932可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
显示单元940可用于显示由用户输入的信息或提供给用户的信息以及终端900的各种图形用户接口，这些图形用户接口可以由图形、文本、图标、视频和其任意组合来构成。显示单元940可包括显示面板941，可选的，可以采用LCD(Liquid Crystal Display，液晶显示器)、OLED(Organic Light-Emitting Diode,有机发光二极管)等形式来配置显示面板941。进一步的，触敏表面931可覆盖显示面板941，当触敏表面931检测到在其上或附近的触摸操作后，传送给处理器980以确定触摸事件的类型，随后处理器980根据触摸事件的类型在显示面板941上提供相应的视觉输出。虽然在图20中，触敏表面931与显示面板941是作为两个独立的部件来实现输入和输入功能，但是在某些实施例中，可以将触敏表面931与显示面板941集成而实现输入和输出功能。
终端900还可包括至少一种传感器950，比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板941的亮度，接近传感器可在终端900移动到耳边时，关闭显示面板941和/或背光。作为运动传感器的一种，重力加速度传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于终 端900还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
音频电路960、扬声器961，传声器962可提供用户与终端900之间的音频接口。音频电路960可将接收到的音频数据转换后的电信号，传输到扬声器961，由扬声器961转换为声音信号输出；另一方面，传声器962将收集的声音信号转换为电信号，由音频电路960接收后转换为音频数据，再将音频数据输出处理器980处理后，经RF电路910以发送给比如另一终端，或者将音频数据输出至存储器920以便进一步处理。音频电路960还可能包括耳塞插孔，以提供外设耳机与终端900的通信。
WiFi属于短距离无线传输技术，终端900通过WiFi模块970可以帮助用户收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问。虽然图20示出了WiFi模块970，但是可以理解的是，其并不属于终端900的必须构成，完全可以根据需要在不改变发明的本质的范围内而省略。
处理器980是终端900的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器920内的软件程序和/或模块，以及调用存储在存储器920内的数据，执行终端900的各种功能和处理数据，从而对手机进行整体监控。可选的，处理器980可包括一个或多个处理核心；优选的，处理器980可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器980中。
终端900还包括给各个部件供电的电源190(比如电池)，优选的，电源可以通过电源管理系统与处理器980逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。电源190还可以包括一个或一个以上的直流或交流电源、再充电系统、电源故障检测电路、电源转换器或者逆变器、电源状态指示器等任意组件。
尽管未示出，终端900还可以包括摄像头、蓝牙模块等，在此不再赘述。具体在本实施例中，终端的显示单元是触摸屏显示器，终端还包括有存储器，以及一个或者一个以上的程序，其中一个或者一个以上程序存储于存储器中，且经配置以由一个或者一个以上处理器执行。所述一个或者一个以上程序包含用于执行上述数据传输方法的指令。
图21是根据一示例性实施例示出的一种通信装置1000的框图，该通信装置可以为基站，也可以为基站中的电路结构、芯片、芯片系统等结构。如图21所示，通信装置1000可以包括：处理器1001、接收机1002、发射机1003和存储器1004。接收机1002、发射机1003和存储器1004分别通过总线与处理器1001连接。
其中，处理器1001包括一个或者一个以上处理核心，处理器1001通过运行软件程序以及模块以执行本申请实施例提供的数据传输方法中基站所执行的方法。存储器1004可用于存储软件程序以及模块。具体的，存储器1004可存储操作系统10041、至少一个功能所需的应用程序模块10042。接收机1002用于接收其他设备发送的通信数据，发射机1003用于向其他设备发送通信数据。
图22是根据一示例性实施例示出的一种通信系统1100的框图，如图22所示，该通信系统1100包括基站1101和UE 1102。
其中，基站1101用于执行上述各个实施例中基站所执行的数据传输方法。
UE 1102用于执行上述各个实施例中UE所执行的数据传输方法。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
应理解，本文中的“第一”“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。具有相同序号的技术特征名称，可能对应不同的技术特征，例如多个第一数据块中的每个数据块都可以包含相同或者不同的数据，具有不同序号的技术特征名称，也可能对应相同的技术特征，例如第一目标DCI检测周期和第二目标DCI检测周期在系统中可能是同一个DCI检测周期，等等。
在示例性实施例中，还提供了一种计算机可读存储介质，该计算机可读存储介质为非易失性的计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，存储的计算机程序被处理组件执行时能够实现本申请上述实施例提供的数据传输方法。
本申请实施例还提供了一种计算机程序产品，该计算机程序产品中存储有指令，当其在计算机上运行时，使得计算机能够执行本申请实施例提供的数据传输方法。
本申请实施例还提供了一种芯片，该芯片包括可编程逻辑电路和/或程序指令，当该芯片运行时能够执行本申请实施例提供的数据传输方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种数据传输方法，其特征在于，所述方法包括：
    接收指示信息；
    根据所述指示信息确定第一DCI检测周期，所述第一DCI检测周期包括n个第二DCI检测周期，每个所述第二DCI检测周期中均存在搜索空间，n为大于或等于2的正整数；
    根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对所述第一DCI检测周期中的m个第一传输块进行接收，所述第一目标DCI检测周期是所述n个第二DCI检测周期中的一个，m为正整数。
  2. 根据权利要求1所述的方法，其特征在于，1≤m≤n。
  3. 根据权利要求1或2所述的方法，其特征在于，所述根据在第一目标DCI检测周期的搜索空间中接收到的第一DCI，对所述第一DCI检测周期中的m个第一传输块进行接收，包括：
    根据所述第一DCI中的调度信息和所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置；
    根据所述每个第一传输块的时频位置，对所述m个第一传输块进行接收。
  4. 根据权利要求3所述的方法，其特征在于，所述第一DCI中的调度信息包括传输块重复次数信息、调度时延信息和资源分配信息，所述根据所述第一DCI中的调度信息和所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置，包括：
    根据所述传输块重复次数信息、所述调度时延信息、所述资源分配信息以及所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置。
  5. 根据权利要求4所述的方法，其特征在于，所述根据所述传输块重复次数信息、所述调度时延信息、所述资源分配信息以及所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置，包括：
    确定所述m个第一传输块中第i个第一传输块的时频位置，所述第i个第一传输块与第i个第二目标DCI检测周期中的目标时频位置在时域上的间隔根据所述调度时延信息确定，1≤i≤m；
    其中，所述第i个第二目标DCI检测周期中的目标时频位置位于搜索空间中，且，所述目标时频位置在所述第二目标DCI检测周期的搜索空间中的位置与所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置相同，所述第二目标DCI检测周期是所述n个第二DCI检测周期中的一个，所述第二目标DCI检测周期中的目标时频位置与所述m个第一传输块中的任一个第一传输块在时域上均不重叠。
  6. 根据权利要求4所述的方法，其特征在于，所述第一DCI中的调度信息还包括DCI子帧重复次数信息，所述根据所述传输块重复次数信息、所述调度时延信息、所述资源分配信息以及所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置，确定所述m个第一传输块中每个第一传输块的时频位置，包括：
    确定所述m个第一传输块中第j个第一传输块的时频位置，所述第j个第一传输块与第j-1个第一传输块在时域上的间隔根据预设时域间隔、所述调度时延信息和所述DCI子帧重复次数信息确定，每个所述第一传输块在时域上的长度根据所述传输块重复次数信息和所述资源分配信息确定，1＜j≤m；
    其中，第1个第一传输块与所述第一DCI在时域上的间隔根据所述调度时延信息确定。
  7. 根据权利要求1至6任一所述的方法，其特征在于，所述方法还包括：
    根据在第三目标DCI检测周期的搜索空间中接收到的第二DCI，对所述第三目标DCI检测周期中的第二传输块进行接收；
    其中，所述第三目标DCI检测周期是所述n个第二检测周期中的一个，所述第三目标DCI检测周期与所述第一目标DCI检测周期不重叠。
  8. 根据权利要求1至7任一所述的方法，其特征在于，每个所述第一传输块中承载有组播通信业务的数据。
  9. 一种数据传输方法，其特征在于，所述方法包括：
    向UE发送指示信息，所述指示信息用于指示第一DCI检测周期，所述第一DCI检测周期包括n个第二DCI检测周期，每个所述第二DCI检测周期中均存在搜索空间，n为大于或等于2的正整数；
    在所述第一DCI检测周期中发送m个第一传输块，m为正整数；
    在第一目标DCI检测周期的搜索空间中发送第一DCI，所述第一DCI用于调度所述m个第一传输块，所述第一目标DCI检测周期是所述n个第二DCI检测周期中的一个。
  10. 根据权利要求9所述的方法，其特征在于，1≤m≤n。
  11. 根据权利要求9或10所述的方法，其特征在于，所述第一DCI中的调度信息和所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置用于指示所述m个第一传输块中每个第一传输块的时频位置。
  12. 根据权利要求11所述的方法，其特征在于，所述第一DCI中的调度信息包括传输块重复次数信息、调度时延信息和资源分配信息；
    所述传输块重复次数信息、所述调度时延信息、所述资源分配信息以及所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置用于指示所述m个第一传输块中每个第一传输块的时频位置。
  13. 根据权利要求12所述的方法，其特征在于，所述m个第一传输块中的第i个第一传输块与第i个第二目标DCI检测周期中的目标时频位置在时域上的间隔由所述调度时延信息指示，1≤i≤m；
    其中，所述第i个第二目标DCI检测周期中的目标时频位置位于搜索空间中，且，所述目标时频位置在所述第二目标DCI检测周期的搜索空间中的位置与所述第一DCI在所述第一目标DCI检测周期的搜索空间中的时频位置相同，所述第二目标DCI检测周期是所述n个第二DCI检测周期中的一个，所述第二目标DCI检测周期中的目标时频位置与所述m个第一传输块中的任一个第一传输块在时域上均不重叠。
  14. 根据权利要求12所述的方法，其特征在于，所述第一DCI中的调度信息还包括DCI子帧重复次数信息，所述m个第一传输块中的第j个第一传输块与第j-1个第一传输块在时域上的间隔由预设时域间隔、所述调度时延信息和所述DCI子帧重复次数信息指示，每个所述第一传输块在时域上的长度由所述传输块重复次数信息和所述资源分配信息指示，1＜j≤m；
    其中，第1个第一传输块与所述第一DCI在时域上的间隔由所述调度时延信息指示。
  15. 根据权利要求9至14任一所述的方法，其特征在于，所述方法还包括：
    在第三目标DCI检测周期中发送第二传输块；
    在所述第三目标DCI检测周期的搜索空间中发送第二DCI，所述第二DCI用于调度所述第二传输块；
    其中，所述第三目标DCI检测周期是所述n个第二检测周期中的一个，所述第三目标DCI检测周期与所述第一目标DCI检测周期不重叠。
  16. 根据权利要求9至15任一所述的方法，其特征在于，每个所述第一传输块中承载有组播通信业务的数据。
  17. 一种通信装置，其特征在于，所述通信装置包括：处理器和存储器；
    所述处理器被配置为执行所述存储器中存储的指令，所述处理器通过执行所述指令来实现权利要求1至8任一所述的数据传输方法。
  18. 一种通信装置，其特征在于，所述通信装置包括：处理器和存储器；
    所述处理器被配置为执行所述存储器中存储的指令，所述处理器通过执行所述指令来实现权利要求9至16任一所述的数据传输方法。
  19. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当所述指令在处理器上运行时，使得所述处理器执行权利要求1至8任一所述的数据传输方法，或者，使得所述处理器执行权利要求9至16任一所述的数据传输方法。
  20. 一种通信系统，其特征在于，包括权利要求17或18所述的通信装置。
PCT/CN2019/104053 2018-09-04 2019-09-02 数据传输方法、装置、设备及存储介质 WO2020048426A1 (zh)

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