WO2019137243A1 - 混合式自动重传请求码本的生成方法、用户设备、介质 - Google Patents

混合式自动重传请求码本的生成方法、用户设备、介质 Download PDF

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Publication number
WO2019137243A1
WO2019137243A1 PCT/CN2018/124762 CN2018124762W WO2019137243A1 WO 2019137243 A1 WO2019137243 A1 WO 2019137243A1 CN 2018124762 W CN2018124762 W CN 2018124762W WO 2019137243 A1 WO2019137243 A1 WO 2019137243A1
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Prior art keywords
bits
transport block
code block
harq
codebook
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English (en)
French (fr)
Inventor
张飒
周欢
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Beijing Spreadtrum Hi Tech Communications Technology Co Ltd
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Beijing Spreadtrum Hi Tech Communications Technology Co Ltd
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Priority to EP18900116.7A priority Critical patent/EP3739791B1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1893—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a method, a user equipment, and a medium for generating a hybrid automatic repeat request codebook.
  • HARQ Hybrid Automatic Repeat ReQuest
  • LTE Long Term Evolution
  • NR New Radio
  • HARQ Hybrid Automatic Repeat ReQuest
  • HARQ is a technology that combines Forward Error Correction (FEC) and Automatic Repeat ReQuest (ARQ). By adding redundant information, FEC can correct some of the errors at the receiving end, thus reducing the weight. The number of passes. For errors that FEC cannot correct, the receiving end requests the sender to resend the data through the ARQ mechanism.
  • the receiving end uses an error detection code, usually a Cyclic Redundancy Check (CRC) check, to detect whether the received data packet is in error.
  • CRC Cyclic Redundancy Check
  • the receiving end will send a positive acknowledgment (ACK) to the sender, and after receiving the ACK, the sender will send the next packet. If an error occurs, the receiver will discard the packet and send a negative acknowledgment (NACK) to the sender. After receiving the NACK, the sender will resend the same data.
  • ACK positive acknowledgment
  • NACK negative acknowledgment
  • the receiving end performs HARQ feedback on each transport block (TB) by using a single bit, that is, whether each TB is correctly received by using single bit feedback.
  • the number of code blocks (CBs) in each TB may be several times that of the LTE system, so the CB in one TB is divided into several code block groups (Code Block) Group, CBG), each code block group includes one or more CBs, and HARQ feedback is performed on each code block group by using a single bit, that is, whether each code block group is correctly received by using single bit feedback, when the code block group sends an error.
  • CBG code block groups
  • HARQ feedback is performed on each code block group by using a single bit, that is, whether each code block group is correctly received by using single bit feedback, when the code block group sends an error.
  • the entire code block group is retransmitted.
  • HARQ feedback is performed by using the number of bits corresponding to the maximum value of the number of code block groups configured by each TB, in order to adapt the number of different transport blocks (Number- The MCS-HARQ-DL-DCI parameter causes the maximum number of code block groups configured for each TB to be too large, so that when the number of transmission blocks is 1, the number of bits is still used.
  • the HARQ feedback of the block group leads to a large bit overhead of the HARQ feedback, resulting in waste of resources.
  • the technical problem solved by the embodiment of the present invention is how to reduce the bit overhead of performing HARQ feedback based on a code block group, and improve resource utilization.
  • an embodiment of the present invention provides a method for generating a hybrid automatic repeat request codebook, where the method includes: receiving a PDSCH transport block; and adopting a N for starting a serving cell based on a code block group feedback HARQ function.
  • the bits generate a HARQ codebook corresponding to the transport block, where N is the maximum value of the number of code block groups corresponding to each PDSCH.
  • the N is max ⁇ N i ⁇ , where i is a start of the code block group feedback HARQ function.
  • the method further includes: receiving signaling sent by the base station, where the signaling includes: a parameter of a number of transmission blocks; when the parameter of the number of transmission blocks is 2, When the number of transmission blocks is 1, the number of transmission blocks is Where i is a serving cell identity that initiates a function based on the code block group to feed the HARQ codebook function, The maximum number of code block groups corresponding to the transport block corresponding to the serving cell i.
  • the generating the HARQ codebook corresponding to the transport block by using the N bits includes: when the number of the transport block parameter is 2, The first N/2 bits are used to generate a HARQ codebook corresponding to the code block group included in the first transport block, and the last N/2 bits are used to generate a HARQ codebook corresponding to the code block group included in the second transport block.
  • the generating the HARQ codebook corresponding to the code block group included in the first transport block by using the first N/2 bits includes: when M1 is less than N/2, adopting the former among the N/2 bits
  • the M1 bits are generated by the HARQ codebook corresponding to the code block group included in the first transport block, and the N/2-M1 bits are set to NACK; wherein M1 is the maximum number of code block groups corresponding to the first transport block. value.
  • the generating, by using the N/2 bits, the HARQ codebook corresponding to the code block group included in the second transport block includes: when M2 is less than N/2, adopting a former one of the N/2 bits
  • the M2 bits are generated by the HARQ codebook corresponding to the code block group included in the second transport block, and the N/2-M2 bits are set to NACK; wherein M2 is the maximum value of the code block group corresponding to the second transport block.
  • the generating the HARQ codebook corresponding to the transport block by using N bits includes: when the number of the transport block parameter is 2 and M1+ When M2 ⁇ N, the first M1 bits are used to generate the HARQ codebook corresponding to the code block group included in the first transport block, and the M2 bits after the M1 are used to generate the HARQ codebook corresponding to the code block group included in the second transport block.
  • the N-M1-M2 bits after M2 are set to NACK, where M1 is the maximum value of the number of code block groups corresponding to the first transport block, and M2 is the maximum number of code block groups corresponding to the second transport block. value.
  • the generating the HARQ codebook corresponding to the transport block by using N bits comprises: when the number of the transport block parameter is 1 and M0 ⁇ In the case of N, the first M0 bits are used to generate the HARQ codebook corresponding to the code block group included in the transport block, and the N-M0 bits after M0 are set to NACK, where M0 is the number of code block groups corresponding to the transport block. Maximum value.
  • the generating the HARQ codebook corresponding to the transport block by using the N bits includes: using the first bit generation The HARQ codebook corresponding to the transport block is set, and the last N-1 bits are set to NACK.
  • An embodiment of the present invention provides a user equipment, including: a first receiving unit, configured to receive a PDSCH transmission block, and a generating unit, configured to generate the transmission by using N bits for starting a serving cell based on a code block group feedback HARQ function.
  • the HARQ codebook corresponding to the block where N is the maximum value of the number of code block groups corresponding to each PDSCH.
  • the N is max ⁇ N i ⁇ , where i is a start of the code block group feedback HARQ function.
  • the user equipment further includes: a second receiving unit, configured to receive signaling sent by the base station, where the signaling includes: a parameter of a number of transmission blocks; when the parameter of the number of transmission blocks is 2, When the number of transmission blocks is 1, the number of transmission blocks is Where i is a serving cell identity that initiates a function based on the code block group to feed the HARQ codebook function, The maximum number of code block groups corresponding to the transport block corresponding to the serving cell i.
  • the generating unit is configured to generate the first transmission by using the first N/2 bits when the number of the transport block parameter is 2.
  • the HARQ codebook corresponding to the code block group included in the block generates the HARQ codebook corresponding to the code block group included in the second transport block by using the N/2 bits.
  • the generating unit is configured to: when the M1 is less than N/2, generate the HARQ codebook corresponding to the code block group included in the first transport block by using the first M1 bits of the first N/2 bits, The latter N/2-M1 bits are set to NACK; wherein, M1 is the maximum value of the number of code block groups corresponding to the first transport block.
  • the generating unit is configured to: when the M2 is less than N/2, generate the HARQ codebook corresponding to the code block group included in the second transport block by using the first M2 bits of the last N/2 bits, The latter N/2-M2 bits are set to NACK; wherein M2 is the maximum value of the number of code block groups corresponding to the second transport block.
  • the generating unit is configured to generate the first M1 bits when the number of transport blocks is 2 and M1+M2 ⁇ N
  • the HARQ codebook corresponding to the code block group included in the first transport block generates the HARQ codebook corresponding to the code block group included in the second transport block by using M2 bits after M1, and N-M1-M2 bits after M2.
  • the NACK is set, where M1 is the maximum value of the number of code block groups corresponding to the first transport block, and M2 is the maximum value of the number of code block groups corresponding to the second transport block.
  • the generating unit is configured to generate, by using the first M0 bits, when the number of transport block parameters is 1 and M0 ⁇ N
  • the HARQ codebook corresponding to the code block group included in the transport block, N-M0 bits after M0 are set to NACK, where M0 is the maximum value of the number of code block groups corresponding to the transport block.
  • the generating unit is configured to generate the HARQ codebook corresponding to the transport block by using the first bit, and then - 1 bit sets NACK.
  • Embodiments of the present invention provide a computer readable storage medium having stored thereon computer instructions that, when executed, perform the steps of any of the methods described above.
  • An embodiment of the present invention provides a user equipment, including a memory and a processor, where the computer stores computer instructions executable on the processor, and the processor executes any of the foregoing when the computer instruction is executed. The steps of the method.
  • the embodiment of the present invention is to generate a HARQ codebook corresponding to the transport block by using N bits for starting a serving cell based on the code block group feedback HARQ function, where N is the maximum value of the number of code block groups corresponding to each PDSCH, because N is the maximum value of the number of code block groups corresponding to each PDSCH, instead of the maximum value of the number of code block groups configured for each transport block, which can be avoided by adapting the number of parameters of different transport blocks.
  • the problem that the number of configured code block groups is too large, thereby reducing the bit overhead of performing HARQ feedback based on the code block group, and improving resource utilization.
  • 1 is a schematic diagram of a conventional code block group
  • FIG. 2 is a detailed flowchart of a method for generating a hybrid automatic repeat request codebook according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a HARQ codebook according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another HARQ codebook according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of still another HARQ codebook according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of still another HARQ codebook according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of still another HARQ codebook according to an embodiment of the present invention.
  • the CB in one TB is divided into a plurality of code block groups, each code block group includes one or more CBs, and HARQ feedback is performed on each code block group by using a single bit. That is, whether each code block group is correctly received by single bit feedback, and when the code block group sends an error, the entire code block group is retransmitted.
  • HARQ feedback is performed on each code block group by using a single bit. That is, whether each code block group is correctly received by single bit feedback, and when the code block group sends an error, the entire code block group is retransmitted.
  • Figure 1 shows a schematic diagram of a prior art code block set.
  • a TB includes 10 CBs, which are sequentially CB0 to CB9, and 10 CBs are divided into 4 CBGs, respectively: CBG0 to CGB3, where: CBG0 corresponds to CB0 to CB2, CBG1 corresponds to CB3 to CB5, and CBG2 corresponds to CB6 to CB7, and CBG3 correspond to CB8 to CB9.
  • the code block group is used to feed back the HARQ codebook.
  • the codebook bit corresponding to CBG0 is set to NACK, and the codebook bits corresponding to other CBGs are set to ACK, and the base station is set to ACK.
  • the base station is set to ACK.
  • the HARQ feedback is performed by using the number of bits corresponding to the maximum value of the number of code block groups configured in each TB, in order to adapt the number of different transport blocks (Number-MCS-).
  • the HARQ-DL-DCI parameter causes the maximum number of code block groups configured for each TB to be too large, so that when the number of transport blocks is 1, the number of bits is still used for the block group.
  • the HARQ feedback causes the bit overhead of the HARQ feedback to be large, resulting in waste of resources.
  • the embodiment of the present invention is to generate a HARQ codebook corresponding to the transport block by using N bits for starting a serving cell based on the code block group feedback HARQ function, where N is the maximum value of the number of code block groups corresponding to each PDSCH, because N is the maximum value of the number of code block groups corresponding to each PDSCH, instead of the maximum value of the number of code block groups configured for each transport block, which can be avoided by adapting the number of parameters of different transport blocks.
  • the problem that the number of configured code block groups is too large, thereby reducing the bit overhead of performing HARQ feedback based on the code block group, and improving resource utilization.
  • an embodiment of the present invention provides a method for generating a hybrid automatic repeat request codebook, where the method may include the following steps:
  • Step S201 receiving a PDSCH transport block.
  • a physical downlink shared channel (PDSCH) transport block may be received according to scheduling information indicated by a physical downlink control channel (PDCCH).
  • PDSCH physical downlink shared channel
  • the PDCCH may indicate a PDSCH transport block based on different DCI formats, for example, indicating a PDSCH transport block based on DCI format 1_1, or indicating a PDSCH transport block based on DCI format 1_0.
  • the DCI format 1_1 and the DCI format 1_0 can refer to the description of the DCI format in the existing protocol, and details are not described herein.
  • Step S202 For starting a serving cell based on the code block group feedback HARQ function, generating a HARQ codebook corresponding to the transport block by using N bits, where N is a maximum value of the number of code block groups corresponding to each PDSCH.
  • the maximum value of the number of code block groups corresponding to each PDSCH may be a maximum value of the total number of code block groups on each PDSCH.
  • the serving cell that initiates the HARQ function based on the code block group may be one or more than two.
  • the N is max ⁇ N i ⁇ , where i is The serving cell identifier based on the code block group feedback HARQ function is started, where N i is the maximum value of the number of code block groups corresponding to each PDSCH corresponding to the serving cell i, where max ⁇ is the maximum value operation.
  • the HARQ codebook may be dynamically configured.
  • the method may further include: receiving signaling sent by the base station, where the signaling includes a parameter of the number of transmission blocks.
  • the transport block parameter is Number-MCS-HARQ-DL-DCI.
  • the number of transmission blocks is 2
  • the number of transmission blocks is 1
  • the number of transmission blocks is Where i is the serving cell identity (or number) that initiates the HARQ codebook function based on the code block group, The maximum number of code block groups corresponding to the transport block corresponding to the serving cell i.
  • the maximum value of the number of code block groups corresponding to the transport block is a maximum value of the number of configured code block groups for the transport block.
  • the generating the HARQ codebook corresponding to the transport block by using N bits includes: when the number of the transport block is 2, the first N/2 bits are used to generate the HARQ codebook corresponding to the code block group included in the first transport block, and the last N/2 bits are used to generate the HARQ codebook corresponding to the code block group included in the second transport block. .
  • the generating the HARQ codebook corresponding to the code block group included in the first transport block by using the first N/2 bits may include: when M1 is less than N/2, using the first N/2 bits.
  • the first M1 bits are generated by the HARQ codebook corresponding to the code block group included in the first transport block, and the N/2-M1 bits are set to NACK; wherein M1 is the number of code block groups corresponding to the first transport block. The maximum value.
  • the generating the HARQ codebook corresponding to the code block group included in the second transport block by using the N/2 bits may include: when M2 is less than N/2, and adopting the N/2 bits later.
  • the first M2 bits are generated by the HARQ codebook corresponding to the code block group included in the second transport block, and the N/2-M2 bits are set to NACK; wherein M2 is the number of code block groups corresponding to the second transport block. Maximum value.
  • the generating the HARQ codebook corresponding to the transport block by using N bits includes: when the number of the transport block is 2, and when M1+M2 ⁇ N, the first M1 bits are used to generate a HARQ codebook corresponding to the code block group included in the first transport block, and the M2 bits after M1 are used to generate a code block group corresponding to the second transport block.
  • the HARQ codebook, N-M1-M2 bits after M2 are set to NACK, where M1 is the maximum value of the number of code block groups corresponding to the first transport block, and M2 is the code block group corresponding to the second transport block. The maximum number of digits.
  • the generating the HARQ codebook corresponding to the transport block by using N bits includes: when the number of the transport block parameter is 1 and M0 ⁇ N, the first M0 bits are used to generate a HARQ codebook corresponding to the code block group included in the transport block, and N-M0 bits after M0 are set to NACK, where M0 is the code block corresponding to the transport block.
  • the maximum number of groups when the DCI format corresponding to the transport block is DCI format 1_1, the generating the HARQ codebook corresponding to the transport block by using N bits includes: when the number of the transport block parameter is 1 and M0 ⁇ N, the first M0 bits are used to generate a HARQ codebook corresponding to the code block group included in the transport block, and N-M0 bits after M0 are set to NACK, where M0 is the code block corresponding to the transport block. The maximum number of groups.
  • the generating the HARQ codebook corresponding to the transport block by using the N bits includes: adopting the first The bits generate the HARQ codebook corresponding to the transport block, and the last N-1 bits are set to NACK.
  • the HARQ codebook is used to notify the base station whether to correctly receive the transport block or the code block group, and may also correspond to other names, such as HARQ-ACK information, or HARQ-ACK feedback, as long as the meanings are the same.
  • HARQ-ACK information such as HARQ-ACK information
  • HARQ-ACK feedback such as HARQ-ACK feedback
  • the UE uses The HARQ-ACK bits feed back the HARQ-ACK of the CBG level.
  • the bits indicate the HARQ-ACK information of the CBG included in the first TB; if the CBG included in the first TB Less than Before Feedback of the HARQ-ACK information of the CBG included in TB0, after The bits are NACK.
  • the bits indicate the HARQ-ACK information of the CBG included in the second TB; if the CBG included in the second TB Less than Before Feedback of the HARQ-ACK information of the CBG included in TB1, after The bits are NACK;
  • the bits indicate the HARQ-ACK information of the CBG included in the first TB, and the following The bits indicate the HARQ-ACK information of the CBG included in the second TB, if Then finally Bit feedback NACK;
  • the bits indicate the HARQ-ACK information of the CBG included in the TB of the PDSCH. If the first TB contains CBG Less than Before Feedback of the HARQ-ACK information of the CBG included in TB0, after The bits are NACK;
  • the first bit is used to feed back the HARQ-ACK corresponding to the TB of the PDSCH scheduling, and the other The bit is NACK;
  • the UE uses the first bit to feed back the PDCCH to generate one bit of HARQ-ACK information, and the bit is ACK at this time.
  • the bit is NACK;
  • an N SPS bit is added after the total codebook to correspond to the SPS transmission HARQ-ACK.
  • the UE uses The HARQ-ACK bits feed back the HARQ-ACK of the CBG level.
  • the bits indicate the HARQ-ACK information of the CBG included in the first TB, if the CBG included in the first TB Less than Before Feedback of the HARQ-ACK information of the CBG included in TB0, after The bits are NACK.
  • the bits indicate the HARQ-ACK information of the CBG included in the second TB, if the CBG included in the second TB Less than Before Feedback of the HARQ-ACK information of the CBG included in TB1, after The bits are NACK;
  • the bits indicate the HARQ-ACK information of the CBG included in the first TB, and the following The bits indicate the HARQ-ACK information of the CBG included in the second TB, if Then finally Bit feedback NACK;
  • the bits indicate the HARQ-ACK information of the CBG included in the TB of the PDSCH. If the first TB contains CBG Less than Before Feedback of the HARQ-ACK information of the CBG included in TB0, after The bits are NACK.
  • the UE When the UE receives a PDSCH scheduled by the DCI format 1_0, it only feeds back the HARQ-ACK of the TB level, and does not feed back the HARQ-ACK of the CBG level;
  • the UE When the UE receives a deactivation of the SPS by the DCI format 1_0, it only feeds back the HARQ-ACK of the TB level, and at this time, the ACK does not feed back the HARQ-ACK of the CBG level;
  • an NSPS bit is added after the total codebook to correspond to the SPS transmission HARQ-ACK.
  • an embodiment of the present invention provides a schematic diagram of a HARQ codebook, as shown in FIG.
  • -per-TB-DL configures the maximum number of CBGs included in the primary serving cell TB
  • RRC parameter Number-MCS-HARQ-DL-DCI 2
  • RRC parameter Number-MCS-HARQ-DL-DCI 1,
  • the UE when the UE receives a PDCCH to schedule a PDSCH or instructs the SPS to deactivate, the UE needs to adopt The HARQ-ACK bits are fed back to the CBG-level HARQ-ACK as follows:
  • the generated codebook is 100000;
  • the total codebook fed back is 100000100000110110.
  • an embodiment of the present invention provides a schematic diagram of another HARQ codebook, as shown in FIG.
  • -per-TB-DL configures the maximum number of CBGs included in the primary serving cell TB
  • RRC parameter Number-MCS-HARQ-DL-DCI 2
  • RRC parameter Number-MCS-HARQ-DL-DCI 1,
  • the UE when the UE receives a PDCCH to schedule a PDSCH or instructs the SPS to deactivate, the UE needs to adopt The HARQ-ACK bits are fed back to the CBG-level HARQ-ACK as follows:
  • the total codebook fed back is 1111000011111111.
  • an embodiment of the present invention provides a schematic diagram of another HARQ codebook, as shown in FIG. 6.
  • RRC parameter Number-MCS-HARQ-DL-DCI 1,
  • the codebook generated by the UE is as follows:
  • the total codebook fed back is 111110, where the subcodebook 1 is 1, the subcodebook 2 is 1111, and the SPS codebook is 0.
  • an embodiment of the present invention provides a schematic diagram of another HARQ codebook, as shown in FIG.
  • the codebook generated by the UE is as follows:
  • the total codebook fed back is 11011111, where subcodebook 1 is 1101 and subcodebook 2 is 1111.
  • an embodiment of the present invention provides a schematic diagram of another HARQ codebook, as shown in FIG.
  • -per-TB-DL configures the maximum number of CBGs included in the primary serving cell TB
  • RRC parameter Number-MCS-HARQ-DL-DCI 2
  • RRC parameter Number-MCS-HARQ-DL-DCI 1,
  • the UE when the UE receives a PDCCH to schedule a PDSCH or instructs the SPS to deactivate, the UE needs to use
  • the HARQ-ACK bits are fed back to the codebook generated by the CBG-level HARQ-ACK UE as follows:
  • the total codebook fed back is 100000100000111100.
  • the embodiment of the present invention further provides a user equipment capable of implementing the method for generating the hybrid automatic repeat request codebook, as shown in FIG.
  • the user equipment 30 may include: a first receiving unit 31 and a generating unit 32, where:
  • the first receiving unit 31 is adapted to receive a PDSCH transport block.
  • the generating unit 32 is configured to generate a HARQ codebook corresponding to the transport block by using N bits for starting a serving cell based on the code block group feedback HARQ function, where N is the number of code block groups corresponding to each PDSCH. Maximum value.
  • the N is max ⁇ N i ⁇ , where i is The serving cell identifier based on the code block group feedback HARQ function is started, where N i is the maximum value of the number of code block groups corresponding to each PDSCH corresponding to the serving cell i, where max ⁇ is the maximum value operation.
  • the user equipment 90 may further include: a second receiving unit (not shown) adapted to receive signaling sent by the base station, where the signaling includes: a transport block number parameter; when the transport block When the number parameter is 2, When the number of transmission blocks is 1, the number of transmission blocks is Where i is a serving cell identity that initiates a function based on the code block group to feed the HARQ codebook function, The maximum number of code block groups corresponding to the transport block corresponding to the serving cell i.
  • a second receiving unit (not shown) adapted to receive signaling sent by the base station, where the signaling includes: a transport block number parameter; when the transport block When the number parameter is 2, When the number of transmission blocks is 1, the number of transmission blocks is Where i is a serving cell identity that initiates a function based on the code block group to feed the HARQ codebook function, The maximum number of code block groups corresponding to the transport block corresponding to the serving cell i.
  • the generating unit 32 is adapted to generate the first N/2 bits when the number of the transport block parameter is 2.
  • the HARQ codebook corresponding to the code block group included in the transport block generates the HARQ codebook corresponding to the code block group included in the second transport block by using the N/2 bits.
  • the generating unit 32 is adapted to generate a code block group corresponding to the first transport block by using the first M1 bits among the first N/2 bits when M1 is less than N/2.
  • the HARQ codebook is set to NACK after the N/2-M1 bits; wherein M1 is the maximum value of the number of code block groups corresponding to the first transport block.
  • the generating unit 32 is adapted to generate a code block group corresponding to the second transmission block by using the first M2 bits of the last N/2 bits when M2 is less than N/2.
  • the HARQ codebook, the latter N/2-M2 bits are set to NACK; wherein M2 is the maximum value of the number of code block groups corresponding to the second transport block.
  • the generating unit 32 is adapted to use the first M1 when the number of transport blocks is 2 and M1+M2 ⁇ N
  • the bit generates a HARQ codebook corresponding to the code block group included in the first transport block, and uses the M2 bits after the M1 to generate the HARQ codebook corresponding to the code block group included in the second transport block, and the N-M1-M2 after the M2.
  • the bits are set to NACK, where M1 is the maximum value of the number of code block groups corresponding to the first transport block, and M2 is the maximum value of the number of code block groups corresponding to the second transport block.
  • the generating unit 32 is adapted to generate the first M0 bits when the number of transport blocks is 1 and M0 ⁇ N.
  • the HARQ codebook corresponding to the code block group included in the transport block, and N-M0 bits after M0 are set to NACK, where M0 is the maximum value of the number of code block groups corresponding to the transport block.
  • the generating unit 32 is adapted to generate the HARQ codebook corresponding to the transport block by using the first bit, After N-1 bits, NACK is set.
  • the working process and the principle of the user equipment 30 may refer to the description in the method provided in the foregoing embodiment, and details are not described herein again.
  • the embodiment of the present invention provides a computer readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which computer instructions are stored, and the computer instructions execute any of the above The steps corresponding to the method are not described herein again.
  • An embodiment of the present invention provides a user equipment, including a memory and a processor, where the computer stores computer instructions executable on the processor, and the processor executes any of the foregoing when the computer instruction is executed. The steps corresponding to the method are not described here.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: ROM, RAM, disk or CD.

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Abstract

一种混合式自动重传请求码本的生成方法、用户设备、介质，所述方法包括：接收PDSCH传输块；针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值。应用上述方案，可以避免为适配不同传输块的个数参数而导致的所配置的码块组个数偏大的问题，从而减少基于码块组进行HARQ反馈的比特开销，提高资源利用率。

Description

混合式自动重传请求码本的生成方法、用户设备、介质
本申请要求于2018年01月12日提交中国专利局、申请号为201810033775.7、发明名称为“混合式自动重传请求码本的生成方法、用户设备、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
本发明实施例涉及通信领域，尤其涉及一种混合式自动重传请求码本的生成方法、用户设备、介质。
背景技术
对于长期演进(Long Term Evolution，LTE)系统和新无线(New Radio，NR)系统，支持混合式自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)机制。HARQ是一种结合前向纠错(Forward Error Correction，FEC)与自动重传请求(Automatic Repeat reQuest，ARQ)方法的技术，FEC通过添加冗余信息，使得接收端能够纠正一部分错误，从而减少重传的次数。对于FEC无法纠正的错误，接收端会通过ARQ机制请求发送端重发数据。接收端使用检错码，通常为循环冗余校验(Cyclic Redundancy Check,CRC)校验，来检测接收到的数据包是否出错。如果无错，则接收端会发送一个肯定的确认(ACK)给发送端，发送端收到ACK后，会接着发送下一个数据包。如果出错，则接收端会丢弃该数据包，并发送一个否定的确认(NACK)给发送端，发送端收到NACK后，会重发相同的数据。
对于LTE系统，接收端采用单比特对每个传输块(Transport Block，TB)进行HARQ反馈，即采用单比特反馈每个TB是否正确接收。对于NR系统，由于TB比特数比较大，每个TB中的码块(Code Block，CB)个数可能是LTE系统的数倍，故将一个TB中的CB分 成若干个码块组(Code Block Group，CBG)，每个码块组包括一个或多个CB，采用单比特对每个码块组进行HARQ反馈，即采用单比特反馈每个码块组是否正确接收，当码块组发送错误时，重传整个码块组。这样当一个TB中的部分CB出错时，只重传出错CB所在的码块组而不是重传整个TB。
然而，现有的基于码块组进行HARQ反馈的方案，采用每个TB所配置的码块组个数的最大值对应的比特个数进行HARQ反馈，为了适配不同传输块个数(Number-MCS-HARQ-DL-DCI)参数，会导致每个TB所配置的码块组个数的最大值偏大，导致当传输块个数参数为1时，仍然采用较多的比特个数进行码块组的HARQ反馈，导致HARQ反馈的比特开销较大，造成资源浪费。
发明内容
本发明实施例解决的技术问题是如何减少基于码块组进行HARQ反馈的比特开销，提高资源利用率。
为解决上述技术问题，本发明实施例提供一种混合式自动重传请求码本的生成方法，所述方法包括：接收PDSCH传输块；针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值。
可选地，当启动基于码块组反馈HARQ功能的服务小区为多个且HARQ码本为动态配置时，所述N为max{N i}，其中i为启动基于码块组反馈HARQ功能的服务小区标识，N i为服务小区i对应的每个PDSCH对应的码块组个数的最大值，其中max{}为取最大值操作。
可选地，所述方法还包括：接收基站发送的信令，所述信令包括：传输块个数参数；当所述传输块个数参数为2时，
Figure PCTCN2018124762-appb-000001
当所述传输块个数参数为1时，
Figure PCTCN2018124762-appb-000002
其中i为启动基于码块组反馈HARQ码本功能的服务小区标识，
Figure PCTCN2018124762-appb-000003
为服务小区i对应的传输块对 应的码块组个数的最大值。
可选地，当所述传输块对应的DCI格式为DCI格式1_1时，所述采用N个比特生成所述传输块对应的HARQ码本包括：当所述传输块个数参数为2时，采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本，采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本。
可选地，所述采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本包括：当M1小于N/2时，采用前N/2个比特之中的前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，后N/2-M1个比特置为NACK；其中，M1为第一个传输块对应的码块组个数的最大值。
可选地，所述采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本包括：当M2小于N/2时，采用后N/2个比特之中的前M2个比特生成第二个传输块包含的码块组对应的HARQ码本，后N/2-M2个比特置为NACK；其中M2为第二个传输块对应的码块组个数的最大值。
可选地，当所述传输块对应的DCI格式为DCI格式1_1时，所述采用N个比特生成所述传输块对应的HARQ码本包括：当所述传输块个数参数为2且M1+M2<N时，采用前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，采用M1之后的M2个比特生成第二个传输块包含的码块组对应的HARQ码本，M2之后的N-M1-M2个比特置NACK，其中M1为第一个传输块对应的码块组个数的最大值，M2为第二个传传输块对应的码块组个数的最大值。
可选地，当所述传输块对应的DCI格式为DCI格式1_1时，所述采用N个比特生成所述传输块对应的HARQ码本包括：当所述传输块个数参数为1且M0<N时，采用前M0个比特生成所述传输块包含的码块组对应的HARQ码本，M0之后的N-M0个比特置NACK，其中M0为所述传输块对应的码块组个数的最大值。
可选地，当所接收的PDSCH传输块对应的DCI格式为DCI格式1_0或者接收PDCCH传输块时，所述采用N个比特生成所述传输块对应的HARQ码本包括：采用第一个比特生成所述传输块对应的HARQ码本，后N-1个比特置NACK。
本发明实施例提供一种用户设备，包括：第一接收单元，适于接收PDSCH传输块；生成单元，适于针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值。
可选地，当启动基于码块组反馈HARQ功能的服务小区为多个且HARQ码本为动态配置时，所述N为max{N i}，其中i为启动基于码块组反馈HARQ功能的服务小区标识，N i为服务小区i对应的每个PDSCH对应的码块组个数的最大值，其中max{}为取最大值操作。
可选地，所述用户设备还包括：第二接收单元，适于接收基站发送的信令，所述信令包括：传输块个数参数；当所述传输块个数参数为2时，
Figure PCTCN2018124762-appb-000004
当所述传输块个数参数为1时，
Figure PCTCN2018124762-appb-000005
其中i为启动基于码块组反馈HARQ码本功能的服务小区标识，
Figure PCTCN2018124762-appb-000006
为服务小区i对应的传输块对应的码块组个数的最大值。
可选地，当所述传输块对应的DCI格式为DCI格式1_1时，所述生成单元，适于当所述传输块个数参数为2时，采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本，采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本。
可选地，所述生成单元，适于当M1小于N/2时，采用前N/2个比特之中的前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，后N/2-M1个比特置为NACK；其中，M1为第一个传输块对应的码块组个数的最大值。
可选地，所述生成单元，适于当M2小于N/2时，采用后N/2个比特之中的前M2个比特生成第二个传输块包含的码块组对应的 HARQ码本，后N/2-M2个比特置为NACK；其中M2为第二个传输块对应的码块组个数的最大值。
可选地，当所述传输块对应的DCI格式为DCI格式1_1时，所述生成单元，适于当所述传输块个数参数为2且M1+M2<N时，采用前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，采用M1之后的M2个比特生成第二个传输块包含的码块组对应的HARQ码本，M2之后的N-M1-M2个比特置NACK，其中M1为第一个传输块对应的码块组个数的最大值，M2为第二个传传输块对应的码块组个数的最大值。
可选地，当所述传输块对应的DCI格式为DCI格式1_1时，所述生成单元，适于当所述传输块个数参数为1且M0<N时，采用前M0个比特生成所述传输块包含的码块组对应的HARQ码本，M0之后的N-M0个比特置NACK，其中M0为所述传输块对应的码块组个数的最大值。
可选地，当所接收的PDSCH传输块对应的DCI格式为DCI格式1_0或者接收PDCCH传输块时，所述生成单元，适于采用第一个比特生成所述传输块对应的HARQ码本，后N-1个比特置NACK。
本发明实施例提供一种计算机可读存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述任一种所述方法的步骤。
本发明实施例提供一种用户设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述任一种所述方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本发明实施例针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值，由于N为每个PDSCH对应的码块组个数的最大值，而不是每个传输块所配置的码块组个数的最大 值，可以避免为适配不同传输块的个数参数，而导致的所配置的码块组个数偏大的问题，从而减少基于码块组进行HARQ反馈的比特开销，提高资源利用率。
附图说明
图1是一种现有的码块组的示意图；
图2是本发明实施例提供的一种混合式自动重传请求码本的生成方法的详细流程图；
图3是本发明实施例提供的一种用户设备的结构示意图；
图4是本发明实施例提供的一种HARQ码本的示意图；
图5是本发明实施例提供的另一种HARQ码本的示意图；
图6是本发明实施例提供的又一种HARQ码本的示意图；
图7是本发明实施例提供的再一种HARQ码本的示意图；
图8是本发明实施例提供的又一种HARQ码本的示意图。
具体实施方式
对于NR系统，由于TB比特数比较大，故将一个TB中的CB分成若干个码块组，每个码块组包括一个或多个CB，采用单比特对每个码块组进行HARQ反馈，即采用单比特反馈每个码块组是否正确接收，当码块组发送错误时，重传整个码块组。这样当一个TB中的部分CB出错时，只重传出错CB所在的码块组而不是重传整个TB。
图1给出了一种现有的码块组的示意图。
参见图1，一个TB包括10个CB，依次为CB0～CB9，将10个CB分为4个CBG，分别为：CBG0～CGB3，其中：CBG0对应CB0～CB2，CBG1对应CB3～CB5，CBG2对应CB6～CB7，CBG3对应CB8～CB9。
采用码块组反馈HARQ码本，当CB0发送错误、CB1～CB9发送正确时，由于CB0对应CBG0，故将CBG0对应的码本比特置为NACK，其他CBG对应的码本比特置为ACK，基站接收到HARQ码本后，仅重传CBG0对应的码块CB0～CB2，而不需要重传整个TB。
现有的基于码块组进行HARQ反馈的方案，采用每个TB所配置的码块组个数的最大值对应的比特个数进行HARQ反馈，为了适配不同传输块个数(Number-MCS-HARQ-DL-DCI)参数，会导致每个TB所配置的码块组个数的最大值偏大，导致当传输块个数参数为1时，仍然采用较多的比特个数进行码块组的HARQ反馈，导致HARQ反馈的比特开销较大，造成资源浪费。
本发明实施例针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值，由于N为每个PDSCH对应的码块组个数的最大值，而不是每个传输块所配置的码块组个数的最大值，可以避免为适配不同传输块的个数参数，而导致的所配置的码块组个数偏大的问题，从而减少基于码块组进行HARQ反馈的比特开销，提高资源利用率。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
参见图2，本发明实施例提供了一种混合式自动重传请求码本的生成方法，所述方法可以包括如下步骤：
步骤S201，接收PDSCH传输块。
在具体实施中，可以基于物理下行控制信道(Physical Downlink Control Channel，PDCCH)指示的调度信息接收物理下行共享信道(Physical Downlink Shared Channel，PDSCH)传输块。
在具体实施中，所述PDCCH可以基于不同的DCI格式指示PDSCH传输块，例如基于DCI格式1_1指示PDSCH传输块，或者基于DCI格式1_0指示PDSCH传输块。DCI格式1_1以及DCI格式1_0可以参照现有的协议中对DCI格式的描述，此处不做赘述。
步骤S202，针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值。
在具体实施中，所述每个PDSCH对应的码块组个数的最大值可以为每个PDSCH上总的码块组个数的最大值。
在具体实施中，所述启动基于码块组反馈HARQ功能的服务小区可以为一个，也可以为两个以上。
在本发明一实施例中，当启动基于码块组反馈HARQ功能的服务小区为多个，即两个以上且HARQ码本为动态配置时，所述N为max{N i}，其中i为启动基于码块组反馈HARQ功能的服务小区标识，N i为服务小区i对应的每个PDSCH对应的码块组个数的最大值，其中max{}为取最大值操作。
在具体实施中，根据3GPP协议，HARQ-ACK-codebook参数为动态(dynamic)时，所述HARQ码本可以为动态配置。
在具体实施中，所述方法还可以包括：接收基站发送的信令，所述信令包括传输块个数参数。例如，所述传输块参数为Number-MCS-HARQ-DL-DCI。当所述传输块个数参数为2时，
Figure PCTCN2018124762-appb-000007
当所述传输块个数参数为1时，
Figure PCTCN2018124762-appb-000008
其中i为启动基于码块组反馈HARQ码本功能的服务小区标识(或者编号)，
Figure PCTCN2018124762-appb-000009
为服务小区i对应的传输块对应的码块组个数的最大值。
在具体实施中，所述传输块对应的码块组个数的最大值为针对传输块，所配置的码块组个数的最大值。
在本发明一实施例中，当所述传输块对应的DCI格式为DCI格 式1_1时，所述采用N个比特生成所述传输块对应的HARQ码本包括：当所述传输块个数参数为2时，采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本，采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本。
在具体实施中，所述采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本可以包括：当M1小于N/2时，采用前N/2个比特之中的前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，后N/2-M1个比特置为NACK；其中，M1为第一个传输块对应的码块组个数的最大值。
在具体实施中，所述采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本可以包括：当M2小于N/2时，采用后N/2个比特之中的前M2个比特生成第二个传输块包含的码块组对应的HARQ码本，后N/2-M2个比特置为NACK；其中M2为第二个传输块对应的码块组个数的最大值。
在本发明一实施例中，当所述传输块对应的DCI格式为DCI格式1_1时，所述采用N个比特生成所述传输块对应的HARQ码本包括：当所述传输块个数参数为2且M1+M2<N时，采用前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，采用M1之后的M2个比特生成第二个传输块包含的码块组对应的HARQ码本，M2之后的N-M1-M2个比特置NACK，其中M1为第一个传输块对应的码块组个数的最大值，M2为第二个传传输块对应的码块组个数的最大值。
在本发明一实施例中，当所述传输块对应的DCI格式为DCI格式1_1时，所述采用N个比特生成所述传输块对应的HARQ码本包括，当所述传输块个数参数为1且M0<N时，采用前M0个比特生成所述传输块包含的码块组对应的HARQ码本，M0之后的N-M0个比特置NACK，其中M0为所述传输块对应的码块组个数的最大值。
在本发明一实施例中，当所接收的PDSCH传输块对应的DCI格 式为DCI格式1_0或者接收PDCCH传输块时，所述采用N个比特生成所述传输块对应的HARQ码本包括：采用第一个比特生成所述传输块对应的HARQ码本，后N-1个比特置NACK。
在具体实施中，所述HARQ码本用于通知基站是否正确接收传输块或者码块组，也可以对应其他的名称，例如HARQ-ACK信息，或者HARQ-ACK反馈，只要含义相同，均属于本发明实施例的保护范围。
在本发明一实施例中，当UE采用HARQ-ACK复用、RRC参数HARQ-ACK-codebook为“dynamic”、且有多个服务小区即载波聚合时，针对RRC参数CBG-DL＝ON的服务小区c，其中c为服务小区标识，基站通过RRC参数CBGs-per-TB-DL为UE配置了服务小区c中TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000010
(即
Figure PCTCN2018124762-appb-000011
)，
Figure PCTCN2018124762-appb-000012
(即N c)为服务小区c上每个PDSCH上总的CBG的最大值。当RRC参数Number-MCS-HARQ-DL-DCI＝2时，
Figure PCTCN2018124762-appb-000013
当RRC参数Number-MCS-HARQ-DL-DCI＝1时，
Figure PCTCN2018124762-appb-000014
Figure PCTCN2018124762-appb-000015
(即N)为所有CBG-DL＝ON的服务小区的
Figure PCTCN2018124762-appb-000016
的最大值。当UE收到PDCCH调度一个PDSCH或者指示SPS去激活时，UE要使用
Figure PCTCN2018124762-appb-000017
个HARQ-ACK比特反馈CBG级的HARQ-ACK。总的码本分为两个子码本，第一个子码本为RRC参数CBG-DL＝OFF的小区的HARQ-ACK反馈，第二个子码本为RRC参数CBG-DL＝ON的小区的HARQ-ACK反馈，第二个子码本位于第一个子码本之后。
对于CBG-DL＝ON的小区，
当UE接收到一个由DCI格式1_1调度的PDSCH、且RRC参数Number-MCS-HARQ-DL-DCI＝2时，可以采用前
Figure PCTCN2018124762-appb-000018
个比特指示第一个TB所包含的CBG的HARQ-ACK信息；若第一个TB所包含的CBG
Figure PCTCN2018124762-appb-000019
小于
Figure PCTCN2018124762-appb-000020
则前
Figure PCTCN2018124762-appb-000021
反馈TB0所包含的CBG的HARQ-ACK信息，后
Figure PCTCN2018124762-appb-000022
个比特 为NACK。采用后
Figure PCTCN2018124762-appb-000023
个比特指示第二个TB所包含的CBG的HARQ-ACK信息；若第二个TB所包含的CBG
Figure PCTCN2018124762-appb-000024
小于
Figure PCTCN2018124762-appb-000025
则前
Figure PCTCN2018124762-appb-000026
反馈TB1所包含的CBG的HARQ-ACK信息，后
Figure PCTCN2018124762-appb-000027
个比特为NACK；
当UE接收到一个由DCI格式1_1调度的PDSCH、且RRC参数Number-MCS-HARQ-DL-DCI＝2时，也可以采用前
Figure PCTCN2018124762-appb-000028
个比特指示第一个TB所包含的CBG的HARQ-ACK信息，接下来的
Figure PCTCN2018124762-appb-000029
个比特指示第二个TB所包含的CBG的HARQ-ACK信息，若
Figure PCTCN2018124762-appb-000030
则最后
Figure PCTCN2018124762-appb-000031
个比特反馈NACK；
当UE接收到一个由DCI格式1_1调度的PDSCH、且RRC参数Number-MCS-HARQ-DL-DCI＝1时，可以采用
Figure PCTCN2018124762-appb-000032
个比特指示PDSCH的TB所包含的CBG的HARQ-ACK信息。若第一个TB所包含的CBG
Figure PCTCN2018124762-appb-000033
小于
Figure PCTCN2018124762-appb-000034
则前
Figure PCTCN2018124762-appb-000035
反馈TB0所包含的CBG的HARQ-ACK信息，后
Figure PCTCN2018124762-appb-000036
个比特为NACK；
当UE接收到一个由DCI格式1_0调度的PDSCH时，采用第一个比特去反馈该PDSCH调度的TB对应的HARQ-ACK，其他
Figure PCTCN2018124762-appb-000037
比特为NACK；
当UE接收到一个由DCI格式1_0指示SPS去激活时，UE用第一个比特去反馈PDCCH产生一个比特的HARQ-ACK信息，此时该比特为ACK，其他
Figure PCTCN2018124762-appb-000038
比特为NACK；
若SPS被激活，在总码本的后面增加N SPS个比特对应SPS传输HARQ-ACK。
在本发明一实施例中，当UE采用HARQ-ACK复用、RRC参数HARQ-ACK-codebook为“dynamic”，有多个服务小区即载波聚合，针对RRC参数CBG-DL＝ON的服务小区c，其中c为服务小区标识，基站通过RRC参数CBGs-per-TB-DL为UE配置了服务小区c中TB 所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000039
(即
Figure PCTCN2018124762-appb-000040
)，
Figure PCTCN2018124762-appb-000041
(即N c)为服务小区c上每个PDSCH上总的CBG的最大值，当RRC参数Number-MCS-HARQ-DL-DCI＝2时，
Figure PCTCN2018124762-appb-000042
当RRC参数Number-MCS-HARQ-DL-DCI＝1时，
Figure PCTCN2018124762-appb-000043
Figure PCTCN2018124762-appb-000044
(即N)为所有CBG-DL＝ON的服务小区的
Figure PCTCN2018124762-appb-000045
的最大值。当UE收到PDCCH调度一个PDSCH或者指示SPS去激活时，UE要使用
Figure PCTCN2018124762-appb-000046
个HARQ-ACK比特反馈CBG级的HARQ-ACK。总的码本分为两个子码本，第一个子码本为所有小区的TB级HARQ-ACK反馈，第二个子码本为RRC参数CBG-DL＝ON的小区的HARQ-ACK反馈，第二个子码本位于第一个子码本之后。
对于CBG-DL＝ON的小区：
当UE接收到一个由DCI格式1_1调度的PDSCH、且RRC参数Number-MCS-HARQ-DL-DCI＝2时，可以采用前
Figure PCTCN2018124762-appb-000047
个比特指示第一个TB所包含的CBG的HARQ-ACK信息，若第一个TB所包含的CBG
Figure PCTCN2018124762-appb-000048
小于
Figure PCTCN2018124762-appb-000049
则前
Figure PCTCN2018124762-appb-000050
反馈TB0所包含的CBG的HARQ-ACK信息，后
Figure PCTCN2018124762-appb-000051
个比特为NACK。采用后
Figure PCTCN2018124762-appb-000052
个比特指示第二个TB所包含的CBG的HARQ-ACK信息，若第二个TB所包含的CBG
Figure PCTCN2018124762-appb-000053
小于
Figure PCTCN2018124762-appb-000054
则前
Figure PCTCN2018124762-appb-000055
反馈TB1所包含的CBG的HARQ-ACK信息，后
Figure PCTCN2018124762-appb-000056
个比特为NACK；
当UE接收到一个由DCI格式1_1调度的PDSCH、且RRC参数Number-MCS-HARQ-DL-DCI＝2时，也可以采用前
Figure PCTCN2018124762-appb-000057
个比特指示第一个TB所包含的CBG的HARQ-ACK信息，接下来的
Figure PCTCN2018124762-appb-000058
个比特指示第二个TB所包含的CBG的HARQ-ACK信息，若
Figure PCTCN2018124762-appb-000059
则最后
Figure PCTCN2018124762-appb-000060
个比特反馈NACK；
当UE接收到一个由DCI格式1_1调度的PDSCH、且RRC参数Number-MCS-HARQ-DL-DCI＝1时，可以采用
Figure PCTCN2018124762-appb-000061
个比特指 示PDSCH的TB所包含的CBG的HARQ-ACK信息。若第一个TB所包含的CBG
Figure PCTCN2018124762-appb-000062
小于
Figure PCTCN2018124762-appb-000063
则前
Figure PCTCN2018124762-appb-000064
反馈TB0所包含的CBG的HARQ-ACK信息，后
Figure PCTCN2018124762-appb-000065
个比特为NACK。
当UE接收到一个由DCI格式1_0调度的PDSCH时，只反馈TB级的HARQ-ACK，不反馈CBG级的HARQ-ACK；
当UE接收到一个由DCI格式1_0指示SPS去激活时，只反馈TB级的HARQ-ACK，此时为ACK不反馈CBG级的HARQ-ACK；
若SPS被激活，在总码本的后面增加NSPS个比特对应SPS传输HARQ-ACK。
应用上述方案，针对SPS相关的传输块，基于相关参数，确定SPS相关的传输块HARQ码本的生成方式，然后基于所确定的HARQ码本的生成方式，生成SPS相关的传输块对应的HARQ码本，故可以针对SPS场景，实现HARQ的反馈。
为使本领域技术人员更好的理解和实施本发明，本发明实施例提供了一种HARQ码本的示意图，如图4所示。
参见图4，UE配置有2个服务小区，RRC参数HARQ-ACK-codebook为“dynamic”，其中主服务小区的标识(或者编号)为0，对应的RRC参数CBG-DL＝ON，RRC参数CBGs-per-TB-DL配置了主服务小区TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000066
RRC参数Number-MCS-HARQ-DL-DCI＝2，
Figure PCTCN2018124762-appb-000067
SPS已激活；辅小区的编号为1，对应的RRC参数CBG-DL＝ON，RRC参数CBGs-per-TB-DL配置了该服务小区TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000068
RRC参数Number-MCS-HARQ-DL-DCI＝1，
Figure PCTCN2018124762-appb-000069
应用上述方案，当UE收到PDCCH调度一个PDSCH或者指示SPS去激活时，UE需要采用
Figure PCTCN2018124762-appb-000070
个HARQ-ACK比特反馈CBG 级的HARQ-ACK，如下所述：
在T41时隙，对于服务小区0，收到一个PDCCH指示SPS去激活，HARQ-ACK反馈时间(简称反馈时间)K1＝4，即4个时隙，生成的码本为100000；对于服务小区1，收到一个DCI格式为DCI格式1_0调度的PDSCH且解码成功，反馈时间K1＝4，生成的码本为100000；
在T42时隙，对于服务小区0，收到一个DCI格式为DCI格式1_1调度的PDSCH且2个TB均解码成功，反馈时间K1＝2，生成的码本为110110；
在HARQ-ACK反馈时刻对应的T43时隙，反馈的总码本为100000100000110110。
为使本领域技术人员更好的理解和实施本发明，本发明实施例提供了另一种HARQ码本的示意图，如图5所示。
参见图5，UE配置有2个服务小区，RRC参数HARQ-ACK-codebook为“dynamic”，其中主服务小区的标识(或者编号)为0，对应的RRC参数CBG-DL＝ON，RRC参数CBGs-per-TB-DL配置了主服务小区TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000071
RRC参数Number-MCS-HARQ-DL-DCI＝2，
Figure PCTCN2018124762-appb-000072
Figure PCTCN2018124762-appb-000073
SPS已激活；辅小区的编号为1，对应的RRC参数CBG-DL＝ON，RRC参数CBGs-per-TB-DL配置了该服务小区TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000074
RRC参数Number-MCS-HARQ-DL-DCI＝1，
Figure PCTCN2018124762-appb-000075
应用上述方案，当UE收到PDCCH调度一个PDSCH或者指示SPS去激活时，UE需要采用
Figure PCTCN2018124762-appb-000076
个HARQ-ACK比特反馈CBG级的HARQ-ACK，如下所述：
在T51时隙，对于服务小区1，收到一个DCI格式为1_1调度的PDSCH且TB解码成功，反馈时间K1＝4，生成的码本为11110000；
在T52时隙，对于服务小区0，收到一个DCI格式为1_1调度的PDSCH且2个TB均解码成功，反馈时间K1＝2，生成的码本为11111111；
在HARQ-ACK反馈时刻对应的T53时隙，反馈的总码本为1111000011111111。
为使本领域技术人员更好的理解和实施本发明，本发明实施例提供了又一种HARQ码本的示意图，如图6所示。
参见图6，UE配置有2个服务小区，RRC参数HARQ-ACK-codebook为“dynamic”，其中主服务小区的标识(或者编号)为0，对应的RRC参数CBG-DL＝OFF，SPS已激活；辅小区的编号为1，对应的RRC参数CBG-DL＝ON，RRC参数CBGs-per-TB-DL配置了该服务小区TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000077
RRC参数Number-MCS-HARQ-DL-DCI＝1，
Figure PCTCN2018124762-appb-000078
应用上述方案，UE生成的码本如下所述：
在T61时隙，对于服务小区0，收到一个SPS的PDSCH且TB解码失败，反馈时间K1＝6，生成的码本为0；对于服务小区1，收到一个DCI格式为1_1调度的PDSCH且TB解码成功，反馈时间K1＝6，生成的码本为1111。
在T62时隙，对于服务小区0，收到一个DCI调度的PDSCH且TB解码成功，反馈时间K1＝2，生成的码本为1；
在HARQ-ACK反馈时刻对应的T63时隙，反馈的总码本为111110，其中子码本1为1，子码本2为1111，SPS码本为0。
为使本领域技术人员更好的理解和实施本发明，本发明实施例提供了再一种HARQ码本的示意图，如图7所示。
参见图7，UE配置有2个服务小区，RRC参数 HARQ-ACK-codebook为“dynamic”，其中主服务小区的标识(或者编号)为0，对应的RRC参数CBG-DL＝ON，RRC参数CBGs-per-TB-DL配置了主服务小区TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000079
RRC参数Number-MCS-HARQ-DL-DCI＝1，
Figure PCTCN2018124762-appb-000080
Figure PCTCN2018124762-appb-000081
SPS已激活；辅小区的编号为1，对应的RRC参数CBG-DL＝OFF。
应用上述方案，UE生成的码本如下所述：
在T71时隙，对于服务小区0，收到一个PDCCH指示SPS去激活，反馈时间K1＝6，生成的码本为1；对于服务小区1，收到一个DCI格式为1_1调度的PDSCH且TB解码成功，反馈时间K1＝6，生成的码本为1；
在T72时隙，对于服务小区0，收到一个DCI格式为1_0调度的PDSCH且TB解码失败，反馈时间K1＝4，生成的码本为0；
在T73时隙，对于服务小区0，收到一个DCI格式为1_1调度的PDSCH且TB解码成功，反馈时间K1＝2，生成的码本为1/1111；
在HARQ-ACK反馈时刻对应的T74时隙，反馈的总码本为11011111，其中子码本1为1101，子码本2为1111。
为使本领域技术人员更好的理解和实施本发明，本发明实施例提供了又一种HARQ码本的示意图，如图8所示。
参见图8，UE配置有2个服务小区，RRC参数HARQ-ACK-codebook为“dynamic”，其中主服务小区的标识(或者编号)为0，对应的RRC参数CBG-DL＝ON，RRC参数CBGs-per-TB-DL配置了主服务小区TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000082
RRC参数Number-MCS-HARQ-DL-DCI＝2，
Figure PCTCN2018124762-appb-000083
SPS已激活；辅小区的编号为1，对应的RRC参数CBG-DL＝ON，RRC参数CBGs-per-TB-DL配置了该服务小区TB所包含的CBG数的最大值
Figure PCTCN2018124762-appb-000084
RRC参数Number-MCS-HARQ-DL-DCI＝1，
Figure PCTCN2018124762-appb-000085
Figure PCTCN2018124762-appb-000086
应用上述方案，当UE收到PDCCH调度一个PDSCH或者指示SPS去激活时，UE要使用
Figure PCTCN2018124762-appb-000087
个HARQ-ACK比特反馈CBG级的HARQ-ACK UE生成的码本，如下所述：
在T81时隙，对于服务小区0，收到一个PDCCH指示SPS去激活，反馈时间K1＝4，生成的码本为100000；对于服务小区1，收到一个DCI格式为1_0调度的PDSCH且TB解码成功，反馈时间K1＝4，生成的码本为100000；
在T82时隙，对于服务小区0，收到一个DCI格式为1_1调度的PDSCH且2个TB均解码成功，反馈时间K1＝2，生成的码本为111100；
在HARQ-ACK反馈时刻对应的T83时隙，反馈的总码本为100000100000111100。
为使本领域技术人员更好的理解和实施本发明，本发明实施例还提供了一种能够实现上述混合式自动重传请求码本的生成方法的用户设备，如图3所示。
参见图3，所述用户设备30可以包括：第一接收单元31和生成单元32，其中：
所述第一接收单元31，适于接收PDSCH传输块。
所述生成单元32，适于针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值。
在本发明一实施例中，当启动基于码块组反馈HARQ功能的服务小区为多个，即两个以上且HARQ码本为动态配置时，所述N为max{N i}，其中i为启动基于码块组反馈HARQ功能的服务小区标识，N i为服务小区i对应的每个PDSCH对应的码块组个数的最大值，其中max{}为取最大值操作。
在具体实施中，所述用户设备90还可以包括：第二接收单元(未示出)，适于接收基站发送的信令，所述信令包括：传输块个数参数；当所述传输块个数参数为2时，
Figure PCTCN2018124762-appb-000088
当所述传输块个数参数为1时，
Figure PCTCN2018124762-appb-000089
其中i为启动基于码块组反馈HARQ码本功能的服务小区标识，
Figure PCTCN2018124762-appb-000090
为服务小区i对应的传输块对应的码块组个数的最大值。
在具体实施中，当所述传输块对应的DCI格式为DCI格式1_1时，所述生成单元32，适于当所述传输块个数参数为2时，采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本，采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本。
在本发明一实施例中，所述生成单元32，适于当M1小于N/2时，采用前N/2个比特之中的前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，后N/2-M1个比特置为NACK；其中，M1为第一个传输块对应的码块组个数的最大值。
在本发明一实施例中，所述生成单元32，适于当M2小于N/2时，采用后N/2个比特之中的前M2个比特生成第二个传输块包含的码块组对应的HARQ码本，后N/2-M2个比特置为NACK；其中M2为第二个传输块对应的码块组个数的最大值。
在具体实施中，当所述传输块对应的DCI格式为DCI格式1_1时，所述生成单元32，适于当所述传输块个数参数为2且M1+M2<N时，采用前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，采用M1之后的M2个比特生成第二个传输块包含的码块组对应的HARQ码本，M2之后的N-M1-M2个比特置NACK，其中M1为第一个传输块对应的码块组个数的最大值，M2为第二个传传输块对应的码块组个数的最大值。
在具体实施中，当所述传输块对应的DCI格式为DCI格式1_1时，所述生成单元32，适于当所述传输块个数参数为1且M0<N时，采用前M0个比特生成所述传输块包含的码块组对应的HARQ码本， M0之后的N-M0个比特置NACK，其中M0为所述传输块对应的码块组个数的最大值。
在具体实施中，当所接收的PDSCH传输块对应的DCI格式为DCI格式1_0或者接收PDCCH传输块时，所述生成单元32，适于采用第一个比特生成所述传输块对应的HARQ码本，后N-1个比特置NACK。
在具体实施中，所述用户设备30的工作流程及原理可以参考上述实施例中提供的方法中的描述，此处不再赘述。
本发明实施例提供一种计算机可读存储介质，计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述任一种所述方法对应的步骤，此处不再赘述。
本发明实施例提供一种用户设备，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述任一种所述方法对应的步骤，此处不再赘述。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：ROM、RAM、磁盘或光盘等。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (20)

  1. 一种混合式自动重传请求码本的生成方法，其特征在于，包括：
    接收PDSCH传输块；
    针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值。
  2. 根据权利要求1所述的混合式自动重传请求码本的生成方法，其特征在于，当启动基于码块组反馈HARQ功能的服务小区为多个且HARQ码本为动态配置时，所述N为max{N i}，其中i为启动基于码块组反馈HARQ功能的服务小区标识，N i为服务小区i对应的每个PDSCH对应的码块组个数的最大值，其中max{}为取最大值操作。
  3. 根据权利要求2所述的混合式自动重传请求码本的生成方法，其特征在于，还包括：
    接收基站发送的信令，所述信令包括：传输块个数参数；
    当所述传输块个数参数为2时，N i＝2×N i TB；
    当所述传输块个数参数为1时，N i＝N i TB；
    其中i为启动基于码块组反馈HARQ码本功能的服务小区标识，
    N i TB为服务小区i对应的传输块对应的码块组个数的最大值。
  4. 根据权利要求3所述的混合式自动重传请求码本的生成方法，其特征在于，
    当所述传输块对应的DCI格式为DCI格式1_1时，
    所述采用N个比特生成所述传输块对应的HARQ码本包括：当所述传输块个数参数为2时，采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本，采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本。
  5. 根据权利要求4所述的混合式自动重传请求码本的生成方法，其特征在于，所述采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本包括：
    当M1小于N/2时，采用前N/2个比特之中的前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，后N/2-M1个比特置为NACK；其中，M1为第一个传输块对应的码块组个数的最大值。
  6. 根据权利要求4所述的混合式自动重传请求码本的生成方法，其特征在于，所述采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本包括：
    当M2小于N/2时，采用后N/2个比特之中的前M2个比特生成第二个传输块包含的码块组对应的HARQ码本，后N/2-M2个比特置为NACK；其中M2为第二个传输块对应的码块组个数的最大值。
  7. 根据权利要求3所述的混合式自动重传请求码本的生成方法，其特征在于，
    当所述传输块对应的DCI格式为DCI格式1_1时，
    所述采用N个比特生成所述传输块对应的HARQ码本包括：
    当所述传输块个数参数为2且M1+M2<N时，采用前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，采用M1之后的M2个比特生成第二个传输块包含的码块组对应的HARQ码本，M2之后的N-M1-M2个比特置NACK，其中M1为第一个传输块对应码块组的个数的最大值，M2为第二个传传输块对应的码块组个数的最大值。
  8. 根据权利要求3所述的混合式自动重传请求码本的生成方法，其特征在于，
    当所述传输块对应的DCI格式为DCI格式1_1时，所述采用N个比特生成所述传输块对应的HARQ码本包括：
    当所述传输块个数参数为1且M0<N时，采用前M0个比特生成所述传输块包含的码块组对应的HARQ码本，M0之后的N-M0个比特置NACK，其中M0为所述传输块对应的码块组个数的最大值。
  9. 根据权利要求3所述的混合式自动重传请求码本的生成方法，其特征在于，
    当所接收的PDSCH传输块对应的DCI格式为DCI格式1_0或者接收PDCCH传输块时，所述采用N个比特生成所述传输块对应的HARQ码本包括：采用第一个比特生成所述传输块对应的HARQ码本，后N-1个比特置NACK。
  10. 一种用户设备，其特征在于，包括：
    第一接收单元，适于接收PDSCH传输块；
    生成单元，适于针对启动基于码块组反馈HARQ功能的服务小区，采用N个比特生成所述传输块对应的HARQ码本，其中N为每个PDSCH对应的码块组个数的最大值。
  11. 根据权利要求10所述的用户设备，其特征在于，当启动基于码块组反馈HARQ功能的服务小区为多个且HARQ码本为动态配置时，所述N为max{N i}，其中i为启动基于码块组反馈HARQ功能的服务小区标识，N i为服务小区i对应的每个PDSCH对应的码块组个数的最大值，其中max{}为取最大值操作。
  12. 根据权利要求11所述的用户设备，其特征在于，还包括：
    第二接收单元，适于接收基站发送的信令，所述信令包括：传输块个数参数；
    当所述传输块个数参数为2时，N i＝2×N i TB；
    当所述传输块个数参数为1时，N i＝N i TB；
    其中i为启动基于码块组反馈HARQ码本功能的服务小区标识，
    N i TB为服务小区i对应的传输块对应的码块组个数的最大值。
  13. 根据权利要求12所述的用户设备，其特征在于，
    当所述传输块对应的DCI格式为DCI格式1_1时，
    所述生成单元，适于当所述传输块个数参数为2时，采用前N/2个比特生成第一个传输块包含的码块组对应的HARQ码本，采用后N/2个比特生成第二个传输块包含的码块组对应的HARQ码本。
  14. 根据权利要求13所述的用户设备，其特征在于，所述生成单元，适于当M1小于N/2时，采用前N/2个比特之中的前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，后N/2-M1个比特置为NACK；其中，M1为第一个传输块对应的码块组个数的最大值。
  15. 根据权利要求13所述的用户设备，其特征在于，所述生成单元，适于当M2小于N/2时，采用后N/2个比特之中的前M2个比特生成第二个传输块包含的码块组对应的HARQ码本，后N/2-M2个比特置为NACK；其中M2为第二个传输块对应的码块组个数的最大值。
  16. 根据权利要求12所述的用户设备，其特征在于，
    当所述传输块对应的DCI格式为DCI格式1_1时，
    所述生成单元，适于当所述传输块个数参数为2且M1+M2<N时，采用前M1个比特生成第一个传输块包含的码块组对应的HARQ码本，采用M1之后的M2个比特生成第二个传输块包含的码块组对应的HARQ码本，M2之后的N-M1-M2个比特置NACK，其中M1为第一个传输块对应的码块组个数的最大值，M2为第二个传传输块对应的码块组个数的最大值。
  17. 根据权利要求12所述的用户设备，其特征在于，
    当所述传输块对应的DCI格式为DCI格式1_1时，所述生成单元，适于当所述传输块个数参数为1且M0<N时，采用前M0个比特生成所述传输块包含的码块组对应的HARQ码本，M0之后的N-M0个比特置NACK，其中M0为所述传输块对应的码块组个数的最大值。
  18. 根据权利要求12所述的用户设备，其特征在于，
    当所接收的PDSCH传输块对应的DCI格式为DCI格式1_0或者接收PDCCH传输块时，所述生成单元，适于采用第一个比特生成所述传输块对应的HARQ码本，后N-1个比特置NACK。
  19. 一种计算机可读存储介质，其上存储有计算机指令，其特征在于，所述计算机指令运行时执行权利要求1至9中任一项所述方法的步骤。
  20. 一种用户设备，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，其特征在于，所述处理器运行所述计算机指令时执行权利要求1至9中任一项所述方法的步骤。
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