WO2019095335A1 - 一种重复发送harq信息的方法、设备及系统 - Google Patents

一种重复发送harq信息的方法、设备及系统 Download PDF

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Publication number
WO2019095335A1
WO2019095335A1 PCT/CN2017/111754 CN2017111754W WO2019095335A1 WO 2019095335 A1 WO2019095335 A1 WO 2019095335A1 CN 2017111754 W CN2017111754 W CN 2017111754W WO 2019095335 A1 WO2019095335 A1 WO 2019095335A1
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WIPO (PCT)
Prior art keywords
harq information
terminal device
pucch
uplink tti
tti
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PCT/CN2017/111754
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English (en)
French (fr)
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苏立焱
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华为技术有限公司
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Priority to PCT/CN2017/111754 priority Critical patent/WO2019095335A1/zh
Publication of WO2019095335A1 publication Critical patent/WO2019095335A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, device, and system for repeatedly transmitting hybrid automatic repeat request (HARQ) information.
  • HARQ hybrid automatic repeat request
  • the principle of HARQ is: after the terminal device receives the data sent by the network device (such as the base station) and demodulates it, it checks whether it is correct. If it passes the check, the terminal device sends an acknowledgement (ACK) to the network device, if not, In the test, the terminal device sends a negative acknowledgement (NACK) to the network device, and sends the ACK/NACK to the physical uplink control channel (PUCCH) that is pre-agreed with the network device. After detecting the ACK/NACK fed back by the terminal device on the PUCCH, it is decided whether to retransmit the data. It can be seen that the reliability of ACK/NACK in the HARQ mechanism is an important design indicator and determines the communication quality.
  • ACK acknowledgement
  • NACK negative acknowledgement
  • PUCCH physical uplink control channel
  • the reliability of the ACK/NACK feedback is generally improved by repeatedly sending ACK/NACK, for example, in multiple consecutive uplink subframes (such as the uplink subframe of #n ⁇ #n+N ANRep -1). NA NRep is the number of repetitions).
  • the ACK/NACK corresponding to the same downlink data (such as the downlink data received on the subframe #nk) is repeatedly sent to the network device.
  • the network device After receiving the ACK/NACK, the network device sends multiple ACK/NACKs. Combine averaging to improve the reliability of ACK/NACK feedback.
  • the method of repeatedly transmitting the ACK/NACK may cause the following problem: if the terminal device receives the downlink data in multiple subframes, and the uplink subframes corresponding to the ACK/NACK corresponding to the downlink data overlap each other, the terminal device needs to be in the ACK/NACK corresponding to multiple downlink data is fed back in one uplink subframe.
  • the network device may not be scheduled in subframe #n-k+1 ⁇ ##n-k+N ANRep -1 Downstream data, but this solution makes downlink data not be scheduled on consecutive downlink subframes, and cannot meet the low latency requirements of URLLC-type services.
  • the embodiment of the present invention provides a method, a device, and a system for repeatedly transmitting HARQ information, so as to solve the problem that the existing scheme for transmitting HARQ information cannot meet the low delay requirement of the URLLC type service.
  • a first aspect of the embodiments of the present application provides a method for repeatedly transmitting HARQ information.
  • the terminal device receives the first downlink data in the first downlink transmission time interval (TTI), and receives the second downlink data in the second downlink TTI.
  • the terminal device determines to repeatedly send the first HARQ corresponding to the first downlink data.
  • the terminal device determines the PUCCH transmission resource and the modulation symbol according to the first HARQ information; when the target TTI belongs to the second uplink TTI set and does not belong to the first uplink TTI set, the terminal The device determines, according to the second HARQ information, a PUCCH transmission resource and a modulation symbol; when the target TTI belongs to the first uplink TTI set and belongs to the second uplink TTI set, the terminal device determines the PUCCH transmission resource and the modulation symbol according to the first HARQ information and the second HARQ information; and the PUCCH transmission of the terminal device in the target TTI The modulation symbol is sent on the resource.
  • the terminal device determines, according to the uplink TTI corresponding HARQ information combination, a PUCCH transmission resource and a modulation symbol, where The PUCCH transmission resource of the uplink TTI transmits the modulation symbol to implement transmission of multiple HARQ information.
  • the PUCCH transmission resource and the modulation symbol are used to indicate multiple HARQ information carried on the same uplink TTI, and the continuous transmission of the downlink data by the access network device does not need to be restricted, and the low latency requirement of the URLLC type service is satisfied.
  • the first HARQ information combination is The HARQ information included in the second HARQ information combination has one and only one different HARQ information, and when the different HARQ information is the acknowledgement command ACK or the negative command NACK, the first HARQ information combination corresponds to the modulation symbol and the second HARQ information combination.
  • the phase difference between the modulation symbols is X;
  • the first HARQ information combination includes at least two HARQ information
  • the second HARQ information combination includes at least two HARQ information
  • the HARQ information corresponding to a certain downlink data must be carried in the same PUCCH transmission resource.
  • the access network device performs blind detection on the HARQ information (NACK or ACK) corresponding to a certain downlink data, only It is sufficient to demodulate the modulation symbols on the same PUCCH transmission resource, and it is not necessary to demodulate multiple modulation symbols on multiple PUCCH transmission resources, thereby avoiding additional interference caused by demodulating modulation symbols on multiple PUCCH transmission resources, and improving HARQ information.
  • the phase difference between the modulation symbols corresponding to the combination of the first HARQ information combination and the second HARQ information is X, which ensures that the modulation mode of the ACK/NACK information corresponding to a certain downlink data is different.
  • the same PUCCH transmission resource of the TTI is the same, which facilitates the access network device to combine the HARQ information demodulated on different uplink TTIs, thereby improving the accuracy of the HARQ information.
  • the interference/noise of the larger energy (such as the interference/noise of energy 1) is required to affect the transmission of the HARQ information, and the HARQ information detected by the access network device is caused.
  • the ability to improve the feedback performance of HARQ information is NACK/ACK, the interference/noise of energy 1
  • the embodiment of the present application provides a terminal device, where the terminal device may include:
  • a receiving unit configured to receive first downlink data in a first downlink transmission time interval TTI, and receive second downlink data in a second downlink TTI;
  • a processing unit configured to determine to repeatedly send the first uplink TTI set of the first repeated transmission hybrid automatic repeat request HARQ information corresponding to the first downlink data, and repeatedly send the second HARQ information corresponding to the second downlink data a second uplink TTI set, where the first uplink TTI set and the second uplink TTI set The intersection includes at least one uplink TTI;
  • determining when the target TTI belongs to the first uplink TTI set and not belonging to the second uplink TTI set, determining the PUCCH transmission resource and the modulation symbol according to the first HARQ information; when the target TTI belongs to the Determining, according to the second HARQ information, the PUCCH transmission resource and the modulation symbol when the second uplink TTI set does not belong to the first uplink TTI set; when the target TTI belongs to the first uplink TTI set and belongs to the Determining, according to the first HARQ information and the second HARQ information, the PUCCH transmission resource and the modulation symbol when the second uplink TTI set is described;
  • a sending unit configured to send the modulation symbol on the PUCCH transmission resource in the target TTI.
  • the provided terminal device can achieve the same advantageous effects as the first aspect.
  • the embodiment of the present application provides a terminal device, where the terminal device can implement the functions performed by the terminal device in the foregoing method, where the function can be implemented by using hardware or by executing corresponding software through hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the terminal device includes a processor, a receiver and a transmitter, and the processor is configured to support the terminal device to perform a corresponding function in the above method.
  • the receiver and transmitter are used to support communication between the terminal device and other network elements.
  • the terminal device can also include a memory, a display for coupling with the processor, which stores program instructions and data necessary for the terminal device, and the display can be used for interaction between the terminal device and the user.
  • an embodiment of the present application provides a computer storage medium for storing computer software instructions used by the terminal device, where the computer software instructions include a program designed to perform the above aspects.
  • an embodiment of the present application provides a computer program product, where the program product stores computer software instructions used by the terminal device, where the computer software instructions include a program designed to perform the above aspects.
  • an embodiment of the present application provides a device, where the device exists in a product form of a chip, where the device includes a processor and a memory, and the memory is configured to be coupled to the processor to save necessary program instructions of the device. And data, the processor is operative to execute program instructions stored in the memory such that the apparatus performs the functions corresponding to the terminal device in the above method.
  • an embodiment of the present application provides a method for repeatedly transmitting HARQ information.
  • the terminal device receives first downlink control information (DCI) and first downlink data in the first downlink TTI; the first DCI includes PUCCH frequency hopping indication information, and the PUCCH frequency hopping indication information is used to indicate the sent PUCCH.
  • DCI downlink control information
  • the terminal device determines a first uplink TTI set that sends the HARQ information corresponding to the first downlink data; and the terminal device sends the uplink TTI on each uplink TTI of the first uplink TTI set according to the PUCCH frequency hopping indication information.
  • PUCCH downlink control information
  • the hopping of the PUCCH in the uplink TTI may be: the uplink PUCCH is sent in at least two different frequency bands in the uplink TTI, and the PUCCH not hopping in the uplink TTI may be: the uplink PUCCH is sent in the same frequency band in the uplink TTI. .
  • the terminal device when the terminal device is transmitting the HARQ information, the terminal device sends the PUCCH on each uplink TTI according to the PUCCH frequency hopping indication information sent by the access network device, and the terminal device is eliminated.
  • the problem that the PUCCH transmission mode is indeterminate due to the missed detection of the downlink data enables the PUCCH to achieve the optimal transmission performance allowed by the physical resources.
  • the terminal device sends the PUCCH on each uplink TTI of the first uplink TTI set according to the PUCCH frequency hopping indication information, including:
  • the terminal device When the PUCCH frequency hopping indication information indicates that the transmitted PUCCH hops in the uplink TTI, the terminal device sends at least two sequences on each uplink TTI of the first uplink TTI set, and at least two sequences are used to indicate HARQ information, and at least At least two of the two sequences are located in different frequency bands.
  • the HARQ information is repeatedly indicated by multiple sequences, and at least two different sequences of the sequences are located in different frequency bands, which brings a frequency hopping gain for the transmission of the PUCCH.
  • the terminal device sends the PUCCH on each uplink TTI of the first uplink TTI set according to the PUCCH frequency hopping indication information, including:
  • the terminal device When the PUCCH frequency hopping indication information indicates that the transmitted PUCCH does not hop in the uplink TTI, the terminal device sends the reference signal and the HARQ modulated signal on each uplink TTI of the first uplink TTI set, where the reference signal and the HARQ modulated signal are in the same frequency band.
  • the reference signal is used for channel estimation, and the HARQ modulated signal carries HARQ information.
  • the PUCCH transmission is implemented by the reference signal for channel estimation and the modulation signal carrying the HARQ information in the same frequency band, and the coherent demodulation gain is brought for the transmission of the PUCCH.
  • the time domain length of each PUCCH is 2 symbols or 3 symbols.
  • the embodiment of the present application provides a terminal device, where the terminal device may include:
  • a receiving unit configured to receive first downlink control information DCI and first downlink data in a first downlink transmission time interval TTI;
  • the first DCI includes physical uplink control channel PUCCH frequency hopping indication information, and the PUCCH frequency hopping
  • the indication information is used to indicate whether the transmitted PUCCH is hopping in the uplink TTI;
  • a processing unit configured to determine a first uplink TTI set that sends the repeated transmission hybrid automatic repeat request HARQ information corresponding to the first downlink data
  • a sending unit configured to send, according to the PUCCH frequency hopping indication information, a PUCCH on each uplink TTI of the first uplink TTI set.
  • the provided terminal device can achieve the same advantageous effects as the seventh aspect.
  • the embodiment of the present application provides a terminal device, where the terminal device can implement the functions performed by the terminal device in the foregoing method, where the function can be implemented by using hardware or by executing corresponding software through hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the terminal device includes a processor, a receiver and a transmitter, and the processor is configured to support the terminal device to perform a corresponding function in the above method.
  • the receiver and transmitter are used to support communication between the terminal device and other network elements.
  • the terminal device can also include a memory, a display for coupling with the processor, which stores program instructions and data necessary for the terminal device, and the display can be used for interaction between the terminal device and the user.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the terminal device, where the computer software instructions include a program designed to perform the above aspects.
  • an embodiment of the present application provides a computer program product, where the program product stores computer software instructions for use in the terminal device, where the computer software instructions include a program designed to perform the above aspects.
  • the embodiment of the present application provides a device, which is in the form of a product of a chip.
  • the device includes a processor and a memory, and the memory is coupled to the processor to save the necessary program of the device.
  • the instructions and data are used by the processor to execute program instructions stored in the memory such that the apparatus performs the functions corresponding to the terminal device in the above method.
  • the embodiment of the present application provides a system for repeatedly transmitting HARQ information, where the system includes the terminal device and the access network device according to any one of the second aspect to the sixth aspect; or includes the seventh aspect The terminal device and the access network device according to any of the twelfth aspects.
  • FIG. 1 is a simplified schematic diagram of a network architecture according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for repeatedly transmitting HARQ information according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of repeatedly transmitting HARQ information according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of still another method for repeatedly transmitting HARQ information according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a transmitted PUCCH according to an embodiment of the present disclosure.
  • FIG. 4b is still another schematic diagram of a PUCCH sent according to an embodiment of the present disclosure.
  • FIG. 4c is still another schematic diagram of repeatedly transmitting HARQ information according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of still another terminal device according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the method for repeatedly transmitting HARQ information provided by the present application may be applied to the network shown in FIG. 1.
  • the network may be a long term evolution (LTE) network or a new radio (NR) network or a universal mobile communication system (Universal Mobile).
  • LTE long term evolution
  • NR new radio
  • Universal Mobile Universal Mobile
  • UMTS Telecommunications System
  • GSM Global System for Mobile Communicati
  • 802.11 series network or other network is not limited.
  • the network may include: an access network device and a terminal device, where the access network device and the terminal device can establish a connection through a wireless interface or a next generation (NG) interface to implement communication.
  • the access network device can carry the downlink data to the physical downlink shared channel (physical downlink shared channel, the PDSCH sends the downlink data to the terminal device, and the terminal device can parse the received downlink data, and carry the HARQ information corresponding to the downlink data on the PUCCH.
  • the present invention is not limited to the embodiment of the present application. .
  • the access network device in FIG. 1 is mainly used to implement functions of a wireless physical layer function, resource scheduling, radio resource management, radio access control, and mobility management; after the terminal device is connected to the access network device,
  • the access data network may be a base station (nodeB, NB), an evolved base station (evolution node B, eNB), an access node, a generation node (gNB), a transmission receive point (TRP), a transmission point. (transmission point, TP) or any access unit of some other access unit.
  • the terminal device can be (user equipment, UE), and can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a smart phone, a wireless local loop (WLL) station, a personal number.
  • PDA Personal digital assistant
  • laptop handheld communication device
  • handheld computing device satellite wireless device
  • wireless modem card wireless modem card
  • the terminal device in FIG. 1 receives the first downlink data in the first TTI and the second downlink data in the second TTI, the terminal device determines to repeatedly send the a first uplink TTI set of the first HARQ information corresponding to the downlink data and a second uplink TTI set of the second HARQ information corresponding to the second downlink data, where the intersection of the first uplink TTI set and the second uplink TTI set includes At least one uplink TTI, when the target TTI belongs to the first uplink TTI set and does not belong to the second uplink TTI set, the terminal device determines the PUCCH transmission resource and the modulation symbol according to the first HARQ information; when the target TTI belongs to the second uplink TTI set and does not When the first uplink TTI set belongs to the terminal, the terminal device determines the PUCCH transmission resource and the modulation symbol according to the second HARQ information; when the target TTI belongs to the first uplink TTI set and belongs to the
  • the terminal device receives the first DCI and the first downlink data in the first downlink TTI; the first DCI includes the PUCCH frequency hopping indication information, and the PUCCH frequency hopping indication information is used. Determining whether the transmitted PUCCH is hopping in the uplink TTI; the terminal device determines to send the first uplink TTI set of the HARQ information corresponding to the first downlink data, and according to the PUCCH frequency hopping indication information, each uplink in the first uplink TTI set The PUCCH is transmitted on the TTI.
  • the terminal device in FIG. 1 may include the components shown in FIG. 2.
  • the terminal device includes at least one processor 21, a memory 22, a receiver 23, a transmitter 24, and a communication bus.
  • the terminal device includes at least one processor 21, a memory 22, a receiver 23, a transmitter 24, and a communication bus.
  • the processor 21 is a control center of the terminal device, and may be a processor or a collective name of a plurality of processing elements.
  • the processor 21 is a central processing unit (CPU), may be an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.
  • ASIC application specific integrated circuit
  • DSPs digital signal processors
  • FPGAs field programmable gate arrays
  • the processor 21 can perform various functions of the terminal device by running or executing a software program stored in the memory 22 and calling data stored in the memory 22.
  • processor 21 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG.
  • the terminal device may include a plurality of processors, such as the processor 21 and the processor 25 shown in FIG. 2.
  • processors can be a single core processor (CPU) or a multi-core processor (multi-CPU).
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • the memory 22 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory 22 can exist independently and is coupled to the processor 21 via a communication bus.
  • the memory 22 can also be integrated with the processor 21.
  • the memory 22 is used to store a software program for executing the solution provided by the embodiment of the present application, and is controlled by the processor 21.
  • the receiver 23 and the transmitter 24 are configured to communicate with other devices or communication networks, such as an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), and the like.
  • RAN radio access network
  • WLAN wireless local area network
  • the communication bus may be an industry standard architecture (ISA) bus, a peripheral component (PCI) bus, or an extended industry standard architecture (EISA) bus.
  • ISA industry standard architecture
  • PCI peripheral component
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 2, but it does not mean that there is only one bus or one type of bus.
  • the device structure shown in FIG. 2 does not constitute a limitation of the terminal device, and may include more or less components than those illustrated, or combine some components, or different component arrangements.
  • the terminal device may further include a battery, a camera, a Bluetooth module, a global positioning system (GPS) module, and the like, and details are not described herein again.
  • GPS global positioning system
  • the terminal device shown in FIG. 2 can perform operations performed by the terminal device in the method for repeatedly transmitting HARQ information provided by the embodiment of the present application.
  • the receiver 23 is configured to receive first downlink data in a first TTI, and receive second downlink data in a second downlink TTI
  • the processor 21 is configured to determine to repeatedly send the first a first uplink TTI set of the first HARQ information corresponding to the downlink data and a second uplink TTI set of the second HARQ information corresponding to the second downlink data, where the intersection of the first uplink TTI set and the second uplink TTI set includes at least An uplink TTI; and, when the target TTI belongs to the first uplink TTI set and does not belong to the second uplink TTI set, determines a PUCCH transmission resource and a modulation symbol according to the first HARQ information; and when the target TTI belongs to the second uplink TTI set and does not belong to Determining a PUCCH transmission resource and a modulation symbol
  • the receiver 23 is configured to receive the first DCI and the first downlink data in the first TTI, where the first DCI includes PUCCH frequency hopping indication information, and the PUCCH frequency hopping indication information
  • the processor 21 is configured to determine whether to send the first uplink TTI set of the HARQ information corresponding to the first downlink data, and the transmitter 24 is configured to use the PUCCH according to the PUCCH.
  • the frequency hopping indication information is sent on each uplink TTI of the first uplink TTI set.
  • the method for repeatedly transmitting HARQ information provided by the embodiment of the present application is performed in conjunction with the network shown in FIG. Introduction.
  • FIG. 3 is a flowchart of a method for repeatedly transmitting HARQ information according to an embodiment of the present disclosure. As shown in FIG. 3, the method may include:
  • Step 301 The access network device sends the first downlink data in the first downlink TTI, and the second downlink data in the second downlink TTI, where the terminal device receives the first downlink data in the first downlink TTI, and is in the second downlink.
  • the TTI receives the second downlink data.
  • the access network device may be the access network device in FIG. 1
  • the terminal device may be any terminal device in FIG. 1 .
  • the downlink TTI is a time unit for scheduling the downlink data of the access network device, and may be one subframe or one time slot or two time domain symbols or three time domain symbols or other multiple time domain symbols, and is not limited.
  • a time unit shorter than 1 ms may be referred to as a short TTI (sTTI), for example, two time domain symbols or three time domain symbols may be referred to as sTTI.
  • the first downlink TTI is a time unit for scheduling the first downlink data
  • the second TTI is a time unit for scheduling the second downlink data
  • the time sizes of the first downlink TTI and the second downlink TTI may be the same, for example:
  • One downlink TTI may be two time domain symbols
  • the second downlink TTI may also be two time domain symbols.
  • the first downlink TTI and the second downlink TTI may be time-continuous or time-discontinuous TTI, and may not be limited.
  • the second downlink TTI may be adjacent to the first downlink TTI and after the first downlink TTI.
  • the downlink TTI may also be a TTI that is not adjacent to the first downlink TTI and that is not adjacent to the first downlink TTI.
  • the downlink data may be a small data packet sent by the access network device in the form of a transport block (TB), and the access network device may carry the downlink data in the PDSCH to the terminal device, for example, access in step 301.
  • the network device may send the PDSCH carrying the first downlink data in the first downlink TTI, and transmit the PDSCH carrying the second downlink data in the second downlink TTI, and the terminal device may send the access network device in the first downlink TTI.
  • the PDSCH that carries the downlink data is the same as the PDSCH.
  • the PDSCH that carries the downlink data is the same as the received PDSCH. That is, the PDSCH is equivalent to transmitting downlink data, and the receiving PDSCH is equivalent to receiving downlink. data.
  • the access network device transmits PDSCH0 on the downlink sTTI0 and PDSCH1 on the downlink sTTI1. Accordingly, the terminal device receives the PDSCH0 on the downlink sTTI0 and the PDSCH1 on the downlink sTTI1.
  • Step 302 The terminal device determines a first uplink TTI set that repeatedly sends the first HARQ information corresponding to the first downlink data, and a second uplink TTI set that repeatedly sends the second HARQ information corresponding to the second downlink data, where the first uplink TTI set And the intersection of the second uplink TTI set includes at least one uplink TTI.
  • the HRAQ information corresponding to each downlink data may be used to indicate a result after the terminal device demodulates the downlink data, and may be an ACK or a NACK or a discontinuous transmission (DTX).
  • DTX discontinuous transmission
  • the terminal device receives the downlink data packet, it checks whether it is correct. If the terminal device passes the check, the HARQ information is ACK; if the check fails, the HARQ information is NACK; if the terminal device does not detect any data transmission, the HRAQ information is DTX. . For example, after receiving the first downlink data, the terminal device can obtain the first HARQ information after demodulation, and after receiving the second downlink data, the terminal device can obtain the second HARQ information after demodulation.
  • the terminal device obtains the repeated transmission of the HARQ information corresponding to each downlink data by using any of the following methods.
  • the number of transmissions NANRep when the terminal device receives the repeated transmission number NANRep, the terminal device determines to repeatedly transmit the HARQ information corresponding to the downlink data.
  • the number of repeated transmissions of the HARQ information NANRep is greater than or equal to 2, and the number of repeated transmissions of the HARQ information NANRep may refer to the number of times the HARQ information corresponding to the same downlink data is repeatedly transmitted.
  • the downlink data of different service types may have different or the same number of repeated transmissions NANRep. No, no restrictions.
  • Manner 1 The number of repeated transmissions of the HARQ information NANRep is carried in the control channel (such as a physical downlink control chanell (PDCCH) or other physical layer control channel, and the terminal device receives the control channel, and obtains the number of repeated transmissions from the control channel.
  • the control channel such as a physical downlink control chanell (PDCCH) or other physical layer control channel
  • Manner 2 The number of repeated transmissions of HARQ information NANRep is pre-configured in high-level signaling (such as radio resource control (RRC) common signaling or proprietary signaling), and the terminal device receives high-level signaling from the high-level signaling. Get the number of repeated transmissions NANRep. .
  • RRC radio resource control
  • the format of the uplink TTI included in the uplink TTI set of the HARQ information corresponding to the downlink data is the same as that of the NANRep, where the initial uplink TTI of the uplink TTI set (ie, the uplink TTI of the initial HARQ information) and the sending
  • the time interval k of the downlink TTI of the downlink data may also be obtained by any of the foregoing methods, and details are not described herein.
  • the HARQ information may be repeatedly transmitted in multiple consecutive uplink subframes of #n ⁇ #n+NANRep-1. Normally, k can be taken as 4.
  • the intersection of the first uplink TTI set and the second uplink TTI set includes at least one uplink TTI, which may be an uplink TTI that transmits the first HARQ information and an uplink TTI that overlaps the uplink TTI that sends the second HARQ information.
  • the terminal device receives PDSCH0 on the downlink sTTI0, and receives the PDSCH1 on the downlink sTTI1.
  • the HARQ0 corresponding to the PDSCH0 is ACK
  • the HARQ1 corresponding to the PDSCH1 is NACK
  • the terminal device acquires a certain one.
  • the NANRep corresponding to the PDSCH is 2, and the terminal device determines that the HARQ0 is transmitted in the uplink sTTI0 and the uplink sTTI1, and the HARQ1 is transmitted in the uplink sTTI1 and the uplink sTTI2, respectively, and the uplink sTTI1 overlaps, that is, the ACK and the NACK are simultaneously transmitted on the uplink sTTI1.
  • Step 303 When the target TTI belongs to the first uplink TTI set and does not belong to the second uplink TTI set, the terminal device determines the PUCCH transmission resource and the modulation symbol according to the first HARQ information; when the target TTI belongs to the second uplink TTI set and does not belong to the first When an uplink TTI set, the terminal device determines a PUCCH transmission resource and a modulation symbol according to the second HARQ information; when the target TTI belongs to the first uplink TTI set and belongs to the second uplink TTI set, the terminal device is configured according to the first HARQ information and the second HARQ. The information determines the PUCCH transmission resource and modulation symbols.
  • the PUCCH transmission resource includes a frequency domain resource, a cyclic shift, and an orthogonal superposition code
  • the PUCCH transmission resource may be any one of a plurality of PUCCH transmission resources corresponding to the multiple downlink data, where the following row data 1 corresponds to The PUCCH transmission resource 1 and the downlink data 2 correspond to the PUCCH transmission resource 2, and the PUCCH transmission resource may be the PUCCH transmission resource 1 or the PUCCH transmission resource 2.
  • the PUCCH transmission resource is indicated by an ACK/NACK resource indicator (ARI) bit in the PDCCH and a PUCCH transmission resource set pre-configured by the high layer signaling, and the ARI bit is And indicating, by the terminal device, which PUCCH transmission resource in the PUCCH transmission resource set, for example, the PUCCH transmission resource set includes four PUCCH transmission resources: PUCCH transmission resource 0 to PUCCH transmission resource 3, and the ARI bit includes 2 bits information, and the terminal device is configured according to The 2-bit information and the correspondence between the ARI bit and the PUCCH transmission resource (00 corresponding to the PUCCH transmission resource 0, 01 corresponding to the PUCCH transmission resource 1, 10 The corresponding PUCCH transmission resource 2, 11 corresponds to the PUCCH transmission resource 3) determines which PUCCH transmission resource is used among the four PUCCH transmission resources.
  • ARI ACK/NACK resource indicator
  • the terminal device uses the control channel element (CCE) index occupied by the PDCCH and the pre-configured PUCCH transmission resource set to calculate which PUCCH to use to send the resource.
  • CCE control channel element
  • the modulation symbols can be used to indicate 2 bits of information, such as: bit information 00 represents modulation symbol +1, bit information 10 represents modulation symbol +j, bit information 11 represents modulation symbol -1, and bit information 01 represents modulation symbol 01.
  • the terminal device may first determine a HARQ information combination for the target TTI, and then determine a PUCCH transmission resource and a modulation symbol on the target TTI according to the HARQ information combination.
  • the HARQ information combination corresponding to the target TTI may include two HARQ information, and each HARQ information is ACK or NACK or DTX. It should be noted that, in the HARQ information combination, the HARQ information corresponding to the downlink data that the terminal device first checks first is preceded, and the HARQ information corresponding to the downlink data that is subsequently checked is later, that is, each HARQ information in the HARQ information combination is verified according to the terminal device. The order of the data is sorted.
  • the terminal device checks the downlink data on the downlink sTTI0.
  • the HARQ information is DTX, and the downlink sTTI1 (downstream sTTI1 is after the downlink sTTI0).
  • the HARQ information is ACK, in this case, if the HARQ information corresponding to the downlink sTTI1 and the downlink sTTI0 is transmitted on the uplink sTTI0, the terminal device determines that the HARQ information corresponding to the uplink sTTI0 is combined (DTX, ACK). For example, as shown in FIG.
  • the HARQ information transmitted by the terminal device in the uplink sTTI0 is combined into DTX and ACK
  • the HARQ information transmitted in the uplink sTTI1 is combined into ACK and NACK
  • the HARQ information transmitted on the uplink sTTI2 is combined into NACK and DTX.
  • the HARQ information combination corresponding to the target TTI includes DTX and first HARQ information
  • the terminal device determines the PUCCH transmission according to the DTX and the first HARQ information.
  • the DTX indicates that the terminal device does not detect the downlink data or does not detect any downlink data. Therefore, in the embodiment of the present application, the terminal device determines the PUCCH transmission resource according to the DTX and the first HARQ information.
  • the modulation symbol means that the terminal device determines the PUCCH transmission resource and the modulation symbol according to the first HARQ information; when the target TTI belongs to the second uplink TTI set and does not belong to the first uplink TTI set, the HARQ information combination corresponding to the target TTI includes the second HARQ The information and the DTX, the terminal device determines the PUCCH transmission resource and the modulation symbol according to the DTX and the second HARQ information.
  • the embodiment of the present application Determining, by the terminal device, the PUCCH transmission resource and the modulation symbol according to the DTX and the second HARQ information means ending And determining, by the terminal device, the PUCCH transmission resource and the modulation symbol according to the second HARQ information; when the target TTI belongs to the first uplink TTI set and belongs to the second uplink TTI set, the HARQ information combination corresponding to the target TTI includes the first HARQ information and the second HARQ information. And determining, by the terminal device, the PUCCH transmission resource and the modulation symbol according to the first HARQ information and the second HARQ information.
  • the terminal device may determine a PUCCH transmission resource and a modulation symbol on the target TTI by querying a correspondence table in which a HARQ information combination, a PUCCH transmission resource, and a correspondence relationship between modulation symbols are stored, for example, searching for a corresponding The relationship table finds the same HARQ information combination in the table and the HARQ information combination on the target TTI, and combines the PUCCH transmission resource and the modulation method corresponding to the HARQ information combination.
  • the PUCCH on the target TTI transmits resources and modulation symbols.
  • Table 1 shows the correspondence between the HARQ information combination, the PUCCH transmission resource, and the modulation symbols.
  • the table 1 indicates that the PUCCH transmission resource on the target TTI is PUCCH1, the modulation symbol is -1.
  • the terminal device is not limited to determining the PUCCCH transmission resource and the modulation symbol on the target TTI by using a table lookup manner, and may also determine the PUCCH transmission resource and the modulation symbol on the target TTI by other calculation manners, which are not limited.
  • Step 304 The terminal device sends a modulation symbol on a PUCCH transmission resource in the target TTI.
  • the terminal device determines the PUCCH transmission resource according to the uplink TTI corresponding HARQ information combination. And a modulation symbol, the PUCCH transmission resource in the uplink TTI transmits the modulation symbol to implement transmission of multiple HARQ information.
  • the PUCCH transmission resource and the modulation symbol are used to indicate multiple HARQ information carried on the same uplink TTI, and the continuous transmission of the downlink data by the access network device does not need to be restricted, and the low latency requirement of the URLLC type service is satisfied.
  • the PUCCH transmission resource corresponding to the first HARQ information combination corresponding to the PUCCH transmission resource and the second HARQ information combination is the same, and the first HARQ information combination and the second HARQ information combination are included.
  • the HARQ information has one and only one different HRAQ information.
  • the phase difference between the modulation symbols corresponding to the combination of the first HARQ information combination and the second HARQ information combination is X, wherein different HARQ information corresponds to the same downlink data.
  • the first HARQ information combination may be a combination of HARQ information corresponding to any target TTI, and the second HARQ information may be other possible HARQ information combinations corresponding to the target TTI.
  • the first HARQ information may be a HARQ information combination (ACK, ACK) in Table 1
  • the second HARQ information may be a HARQ information combination (NACK, ACK) in Table 1.
  • the HARQ information corresponding to a certain downlink data must be carried in the same PUCCH transmission resource.
  • the access network device performs blind detection on the HARQ information (NACK or ACK) corresponding to a certain downlink data, only It is sufficient to demodulate the modulation symbols on the same PUCCH transmission resource, and it is not necessary to demodulate multiple modulation symbols on multiple PUCCH transmission resources, thereby avoiding additional interference caused by demodulating modulation symbols on multiple PUCCH transmission resources, and improving HARQ information.
  • the first HARQ information combination corresponds to The phase difference between the modulation symbols and the second HARQ information combination is X, which ensures that the modulation mode of the ACK/NACK information corresponding to a certain downlink data is the same on the same PUCCH transmission resource of different TTIs, which is convenient.
  • the access network device combines the HARQ information demodulated on different uplink TTIs, thereby improving the accuracy of the HARQ information.
  • the phase difference between the modulation symbols corresponding to the combination of the first HARQ information combination and the second HARQ information combination is 180 degrees.
  • the interference/noise of the larger energy (such as the interference/noise of energy 1) is required to affect the transmission of the HARQ information, and the HARQ information detected by the access network device is caused.
  • the ability to improve the feedback performance of HARQ information is NACK/ACK, the interference/noise of energy 1
  • Table 1 illustrates the determination rule of the PUCCH transmission resource and the modulation symbol only in the case where the HARQ information combination includes two HARQ information. It can be understood that the HARQ information combination may include three HARQ information or four. For the HARQ information or more HARQ information, when the HARQ information combination includes three HARQ information or four HARQ information or more HARQ information, the determination rules of the PUCCH transmission resource and the modulation symbol also conform to the rules shown in Table 1.
  • Table 2 is a correspondence table for determining a PUCCH transmission resource and a modulation symbol in a case where the HARQ information combination includes three HARQ information, and a HARQ information combination (ACK, ACK, ACK) and a HARQ information combination (
  • the NACK, ACK, and ACK include only one different HARQ information, and the corresponding PUCCH transmission resources are both PUCCH0, and the modulation symbols of the two are j and -j, respectively, which are 180 degrees apart.
  • FIG. 3a For ease of understanding, the above technical solution is described in detail by taking FIG. 3a as an example.
  • the access network device configures the HARQ repeat transmission for the terminal device.
  • the HARQ information of the downlink data PDSCH0 needs to be fed back on the uplink sTTI0 and the uplink sTTI1.
  • the HARQ information of the downlink data PDSCH1 needs to be fed back on the uplink sTTI1 and the uplink sTTI2.
  • the device configures PUCCH transmission resource 0 for PDSCH0 and transmission resource 1 for PDSCH1.
  • the terminal device When the terminal device correctly receives the downlink data PDSCH0 (HARQ information is ACK) and erroneously receives the downlink data PDSCH1 (the HARQ information is NACK), the HARQ information corresponding to the uplink sTTI0 is combined into (DTX, ACK), and the HARQ information combination corresponding to the uplink sTTI1 is ( ACK, NACK), if the HARQ information corresponding to the uplink sTTI2 is combined (NACK, DTX), according to Table 1, the terminal device transmits the modulation symbol-1 on the PUCCH0 of the uplink sTTI0, and transmits the modulation symbol -j on the PUCCH1 of the uplink sTTI1. The modulation symbol +1 is transmitted on PUCCH1 of sTTI2.
  • the PUCCH transmitted by the terminal device needs to be detected on the PUCCH0 of the uplink sTTI0, the PUCCH1 of the uplink sTTI1, and the PUCCH1 of the uplink sTTI2.
  • the ACK/NACK modulation symbols of the downlink data PDSCH0 are -1 and +1, respectively, and on the uplink sTTI1, the ACK/ corresponding to the downlink data PDSCH0
  • the NACK modulation symbols are carried on PUCCH0, they are respectively +j and -j, and if they are carried on PUCCH1, they are -j and +j, respectively. It can be seen that the phase difference of the ACK/NACK modulation symbol is always 180 degrees.
  • the access network device receives the modulation symbol x0 of the uplink sTTI0, the modulation symbol x1 on the PUCCH0 of the uplink sTTI1, and the modulation symbol x2 on the PUCCH1 of the uplink sTTI1. (Only one of x1 and x2 contains HARQ information and the other is noise), and the modulation symbols on the two uplink sTTIs can be combined in the manner of x0-x1/j and x0+x2/j, respectively.
  • -x1/j and x2/j actually make a phase rotation of the modulation symbols x1 and x2, so that the rotated ACK/NACK information is modulated with -1 and +1, respectively, so that with x0
  • the modulation methods are the same, and can be added together.
  • the access network device performs HARQ information detection on the obtained combined value (the detector considers that the ACK/NACK information uses -1 and +1 modulation respectively), and then obtains the required HARQ information. After the above combination, the reliability of the PUCCH is improved.
  • FIG. 4 is a flowchart of still another method for repeatedly transmitting HARQ information according to an embodiment of the present disclosure. As shown in FIG. 4, the method includes:
  • Step 401 The access network device sends the first DCI and the first downlink data in the first downlink TTT, and the terminal device receives the first DCI and the first downlink data in the first downlink TTI.
  • the first DCI includes PUCCH frequency hopping indication information, and the PUCCH frequency hopping indication information is used to indicate whether the transmitted PUCCH is hopped in the uplink TTI.
  • the frequency hopping of the PUCCH in the uplink TTI may be: at least two of the uplink PUCCH in the uplink TTI. Transmitted on different frequency bands, the PUCCH does not hop in the uplink TTI.
  • the uplink PUCCH may be sent in the same frequency band in the uplink TTI.
  • the PUCCH frequency hopping indication information may be 1 bit information (0 or 1), and the PUCCH transmitted by 0 indicates that the PUCCH does not hop in the uplink TTI, and the PUCCH transmitted by 1 indicates hopping in the uplink TTI.
  • Step 402 The terminal device determines to send a first uplink TTI set of HARQ information corresponding to the first downlink data.
  • the first uplink TTI set may include one or more uplink TTIs.
  • step 402 is the same as the implementation of the first uplink TTI set of the first HARQ information corresponding to the first downlink data in the scenario shown in FIG. 3, and details are not described herein again.
  • Step 403 The terminal device sends the PUCCH on each uplink TTI of the first uplink TTI set according to the PUCCH frequency hopping indication information.
  • the PUCCH sent on each uplink TTI can occupy 2 symbols or 3 symbols, and is not limited.
  • the terminal device sends at least two sequences (referred to as S) on each uplink TTI of the first uplink TTI set, at least two sequences are used to indicate HARQ information, and at least two of the at least two sequences The two sequences are in different frequency bands.
  • the at least two sequences of the at least two sequences being located in different frequency bands may include: at least two pairs of adjacent sequences in at least two sequences are located in different frequency bands, or only one pair of adjacent sequences in at least two sequences are located in different frequency bands.
  • two sequences (S) are transmitted on the sTTI, each S is located in a different frequency band (as shown in Figure 4a), or three sequences are transmitted on the sTTI (S).
  • the first sequence is sent in the upper/lower frequency band.
  • the second sequence and the third sequence are transmitted in the lower/upper band.
  • the HARQ information is repeatedly indicated by multiple sequences, and at least two different sequences of the sequences are located in different frequency bands, which brings a frequency hopping gain for the transmission of the PUCCH.
  • the terminal device when the PUCCH frequency hopping indication information indicates that the sent PUCCH does not hop in the uplink TTI, the terminal device sends a reference signal on each uplink TTI of the first uplink TTI set (referred to as S And the HARQ modulation signal (Demodulation Reference Sgnal) (referred to as D), the reference signal and the HARQ modulation signal are in the same frequency band, the reference signal is used for channel estimation, and the HARQ modulation signal carries HARQ information.
  • S And the HARQ modulation signal Demodulation Reference Sgnal
  • the PUCCHs sent on different uplink TTIs may be located in the same frequency band or in different frequency bands, and are not limited.
  • PUCCHs are respectively sent on sTTI1, sTTI2, and sTTI3, and each PUCCH includes S and D, and PUCCHs on different sTTIs are in different frequency bands.
  • the PUCCH transmission is implemented by the reference signal for channel estimation and the modulation signal carrying the HARQ information in the same frequency band, and the coherent demodulation gain is brought for the transmission of the PUCCH.
  • the terminal device when the terminal device is transmitting the HARQ information, the terminal device sends the PUCCH on each uplink TTI according to the PUCCH frequency hopping indication information sent by the access network device, and the PUCCH is eliminated.
  • the problem that the PUCCH transmission mode is uncertain due to the terminal device missing the downlink data makes the PUCCH reach the optimal transmission performance allowed by the physical resource.
  • the method further includes:
  • the terminal device receives the second downlink data on the second TTI
  • the terminal device determines a second uplink TTI set that sends the HARQ information corresponding to the second downlink data.
  • the terminal device When the target TTI belongs to the first uplink TTI set and does not belong to the second uplink TTI set, the terminal device sends the HARQ information corresponding to the first downlink data on the target TTI; when the target TTI belongs to the second uplink TTI set and does not belong to the first When an uplink TTI set is used, the terminal device sends the HARQ information corresponding to the second downlink data on the target TTI; when the target TTI belongs to the first uplink TTI set and belongs to the second uplink TTI set, the terminal device sends the second uplink TTI according to the target TTI.
  • the HARQ information corresponding to the downlink data or the second downlink data ensures that each uplink TTI transmits only one HARQ information corresponding to the downlink data.
  • the terminal device when the terminal device sends at least two pieces of HARQ information on the same uplink TTI, only one HARQ information transmission may be selected from at least two pieces of HARQ information according to a predefined rule.
  • the predefined rules can be the principle of coverage or the principle of preemption or fairness. For example, as shown in FIG. 4c, when two HARQ information are transmitted on the uplink sTTI1, the HARQ information corresponding to the downlink data PDSCH0 is deleted, and only the upper one is guaranteed. A HARQ message is sent on the PUCCH of the sTTI1.
  • the coverage principle may refer to the terminal device according to the indication of the access network device behind the time.
  • the uplink sTTI1 is to send the HARQ information of the two downlink data
  • the access network device sequentially instructs to send the HARQ information of the downlink data PDSCH0 and the HARQ information of the downlink data PDSCH1 on the uplink sTTI1, and the terminal device determines not to be on the uplink sTTI1 according to the coverage principle.
  • the HARQ information of the downlink data PDSCH0 is transmitted.
  • the preemption principle is contrary to the coverage principle.
  • the preemption principle may refer to the terminal device according to the indication of the access network device behind the time.
  • the uplink sTTI1 sends two HARQ information of the downlink data
  • the access network device sequentially sends the HARQ information of the downlink data PDSCH0 and the HARQ information of the downlink data PDSCH1 on the uplink sTTI1, and the terminal device determines that the uplink sTTI1 is not based on the preemption principle.
  • the HARQ information of the downlink data PDSCH1 is transmitted.
  • the fairness principle mainly ensures that each HARQ information is transmitted on the same number of PUCCHs or that the number of PUCCHs occupied by each HARQ information is not much different.
  • the HARQ information of the downlink data PDSCH0 is transmitted on the uplink six sTTIs
  • the HARQ information of the downlink data PDSCH1 is sent sTTI0 to sTTI5 on the five sTTIs of the uplink sTTI1 to sTTI5, wherein five sTTIs simultaneously transmit two HARQ information, and the terminal
  • the device determines that the HARQ information of the downlink data PDSCH0 is transmitted on the uplink sTTI0 to sTTI2, and the HARQ information of the downlink data PDSCH1 on the uplink sTTI3 to sTTI5, and ensures that each HARQ information is transmitted on the same number of PUCCHs.
  • each uplink TTI only transmits one HARQ information corresponding to the downlink data, which avoids the problem that multiple HARQs are simultaneously transmitted on the same uplink TTI.
  • each network element such as an access network device and a terminal device, in order to implement the above functions, includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the algorithmic steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiment of the present application may divide the function module into the access network device according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 5 shows still another possible composition diagram of the terminal device, which can be used to perform the functions of the terminal device involved in the foregoing embodiments.
  • the terminal device may include: a receiving unit 50, a processing unit 51, and a sending unit 52;
  • the receiving unit 50 is configured to receive first downlink data in a first downlink transmission time interval TTI and second downlink data in a second downlink TTI.
  • the access unit 50 can support the terminal device to perform step 301.
  • the processing unit 51 is configured to determine to repeatedly send the first repeated transmission hybrid automatic corresponding to the first downlink data. Retransmitting a first uplink TTI set of the request HARQ information and a second uplink TTI set of the second HARQ information corresponding to the second downlink data, the intersection of the first uplink TTI set and the second uplink TTI set Include at least one uplink TTI; and, when the target TTI belongs to the first uplink TTI set and does not belong to the second uplink TTI set, determine the PUCCH transmission resource and the modulation symbol according to the first HARQ information; Determining, according to the second HARQ information, the PUCCH transmission resource and the modulation symbol when a target TTI belongs to the second uplink TTI set and does not belong to the first uplink TTI set; when the target TTI belongs to the first And determining, when the uplink TTI set belongs to the second uplink TTI set, the PUCCH transmission resource and the modulation symbol according to the first HARQ information and the second HARQ
  • the sending unit 52 is configured to send the modulation symbol on the PUCCH transmission resource in the target TTI.
  • the sending unit 52 can support the terminal device to perform step 304.
  • the receiving unit 50 is configured to receive the first downlink control information DCI and the first downlink data in the first downlink transmission time interval TTI; the first DCI includes a physical uplink control channel PUCCH.
  • the frequency hopping indication information is used to indicate whether the transmitted PUCCH is hopping in the uplink TTI.
  • the access unit 50 can support the terminal device to perform step 401.
  • the processing unit 51 is configured to determine to send a first uplink TTI set of the repeated transmit hybrid automatic repeat request HARQ information corresponding to the first downlink data.
  • the processing unit 51 can support the terminal device to perform step 402.
  • the sending unit 52 is configured to send, according to the PUCCH frequency hopping indication information, a PUCCH on each uplink TTI of the first uplink TTI set.
  • the transmitting unit 52 can support the terminal device to perform step 403.
  • the terminal device configured to perform the foregoing method for repeatedly transmitting HARQ information, so that the same effect as the above method for repeatedly transmitting HARQ information can be achieved.
  • FIG. 6 shows a device which is in the form of a product of a chip for performing the functions of the terminal device in the above embodiment.
  • the device may include: The module 60 and the communication module 61 are processed.
  • the processing module 60 is for controlling management of the actions of the device.
  • the processing module 60 is configured to support the device to perform step 302, step 303, step 402, and/or other processes for the techniques described herein.
  • Communication module 61 is used to support communication of the device with other network entities, such as communication with the access network device or network entity illustrated in FIG.
  • the apparatus can also include a storage module 62 for storing program code and data for the device.
  • the processing module 60 can be a processor or a controller. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 61 may be a module that integrates a receiver and a transmitter, and the like.
  • the storage module 62 can be a memory.
  • the processing module 60 is a processor
  • the communication module 61 is a module that integrates the receiver and the transmitter
  • the storage module 62 is a memory
  • the device involved in the embodiment of the present application may be the device shown in FIG.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used.
  • the combination may be integrated into another device, or some features may be ignored or not performed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a readable storage medium.
  • the technical solution of the embodiments of the present application may be embodied in the form of a software product in the form of a software product in essence or in the form of a contribution to the prior art, and the software product is stored in a storage medium.
  • a number of instructions are included to cause a device (which may be a microcontroller, chip, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请实施例公开了重复发送HARQ信息的方法、设备及系统，涉及通信技术领域，解决了现有发送HARQ信息的方案不能满足URLLC类业务的低时延要求的问题。具体方案为：终端设备在第一下行传输时间间隔TTI接收第一下行数据，在第二下行TTI接收第二下行数据，确定重复发送第一下行数据对应的第一HARQ信息的第一上行TTI集合以及重复发送第二下行数据对应的第二HARQ信息的第二上行TTI集合，根据第一HARQ信息和/或第二HARQ信息确定PUCCH发送资源和调制符号，在目标TTI中的PUCCH发送资源上发送调制符号。本申请实施例提供的方案用于发送HARQ信息。

Description

一种重复发送HARQ信息的方法、设备及系统 技术领域
本申请实施例涉及通信技术领域，尤其涉及一种重复发送混合自动重传请求(hybrid automatic repeat request，HARQ)信息的方法、设备及系统。
背景技术
HARQ的原理是：终端设备接收到网络设备(如基站)发送的数据并解调后，检验其是否正确，若通过检验，则终端设备向网络设备发送确认指令(acknowledgement，ACK)，若未通过检验，则终端设备向网络设备发送否认指令(negative acknowledgement，NACK)，并将ACK/NACK通过与网络设备预先约定好的物理上行控制信道(physical uplink control channel，PUCCH)上发送出去，网络设备在PUCCH上检测到终端设备反馈的ACK/NACK后，决定是否重传数据。可见，HARQ机制中ACK/NACK的可靠性是一个重要设计指标，决定通信质量。
目前，随着通信技术的发展，超可靠低时延通信(ultra reliable and low latency communication，URLLC)等新型业务应用而生，这类业务要求在1ms内完成传输且成功概率达到99.999％。为了满足URLLC的业务需求，需要提高ACK/NACK反馈的可靠性。现有技术人员通常通过重复发送ACK/NACK等方式来提升ACK/NACK反馈的可靠性，如：在多个连续的上行子帧(如#n～#n+NANRep-1的上行子帧，NANRep为重复次数)上将同一下行数据(如子帧#n-k上接收到的下行数据)对应的ACK/NACK重复发送给网络设备，网络设备接收到ACK/NACK后，将多个ACK/NACK合并取平均值，以此提高ACK/NACK反馈的可靠性。但是，这种重复发送ACK/NACK的方式会出现下述问题：若终端设备在多个子帧接收下行数据，且这些下行数据对应的发送ACK/NACK的上行子帧彼此重叠，则终端设备需要在一个上行子帧上反馈多个下行数据对应的ACK/NACK，为避免这种问题的出现，限定网络设备不可以在子帧#n-k+1～##n-k+NANRep-1调度下行数据，但这种解决办法使得下行数据不能在连续的下行子帧上被调度，无法满足URLLC类业务的低时延要求。
发明内容
本申请实施例提供一种重复发送HARQ信息的方法、设备及系统，以解决现有发送HARQ信息的方案不能满足URLLC类业务的低时延要求的问题。
本申请实施例的第一方面，提供一种重复发送HARQ信息的方法。终端设备在第一下行传输时间间隔(transmission time interval，TTI)接收第一下行数据，在第二下行TTI接收第二下行数据；终端设备确定重复发送第一下行数据对应的第一HARQ信息的第一上行TTI集合以及重复发送第二下行数据对应的第二HARQ信息的第二上行TTI集合，第一上行TTI集合和第二上行TTI集合的交集包括至少一个上行TTI；当目标TTI属于第一上行TTI集合且不属于第二上行TTI集合时，终端设备根据第一HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第二上行TTI集合且不属于第一上行TTI集合时，终端设备根据第二HARQ信息确定PUCCH发送资源和 调制符号；当目标TTI属于第一上行TTI集合且属于第二上行TTI集合时，终端设备根据第一HARQ信息和第二HARQ信息确定PUCCH发送资源和调制符号；终端设备在目标TTI中的PUCCH发送资源上发送调制符号。
基于本申请实施例提供的技术方案，当多个HARQ信息在同一个上行TTI(如上述目标TTI)上发送时，终端设备根据该上行TTI对应HARQ信息组合确定PUCCH发送资源和调制符号，在该上行TTI的PUCCH发送资源发送该调制符号，以实现多个HARQ信息的发送。如此，利用PUCCH发送资源和调制符号来指示同一上行TTI上承载的多个HARQ信息，不需要限制接入网设备对下行数据的连续发送，满足了URLLC类业务的低时延要求。
结合第一方面，在第一方面的第一种可能的实现方式中，当第一HARQ信息组合对应的PUCCH发送资源和第二HARQ信息组合对应的PUCCH发送资源相同，且第一HARQ信息组合和第二HARQ信息组合包含的HARQ信息有且仅有一个不同的HARQ信息，不同的HARQ信息为确认指令ACK或者否认指令NACK时，第一HARQ信息组合对应的调制符号和第二HARQ信息组合对应的调制符号间的相位差为X；
其中，第一HARQ信息组合包括至少两个HARQ信息，第二HARQ信息组合包括至少两个HARQ信息。
如此，某一下行数据对应的HARQ信息不论是ACK或者是NACK必定承载在同一PUCCH发送资源，当接入网设备对某个下行数据对应的HARQ信息(NACK或者ACK)进行盲检时，仅在同一PUCCH发送资源上解调调制符号即可，无需在多个PUCCH发送资源上解调多个调制符号，避免了解调多个PUCCH发送资源上的调制符号带来的额外干扰，提高了HARQ信息的可靠性；同时，第一HARQ信息组合对应的调制符号和所述第二HARQ信息组合对应的调制符号间的相位差为X，保证了某一下行数据对应的ACK/NACK信息的调制方式在不同TTI的同一PUCCH发送资源上是相同的，便于接入网设备将不同上行TTI上解调出的HARQ信息进行合并，以此提高了HARQ信息的准确性。
结合第一方面的一种可能的实现方式，在第一方面的第二种可能的实现方式中，第一HARQ信息组合对应的调制符号和第二HARQ信息组合对应的调制符号间的相位差X＝180度。
如此，当终端设备发送的HARQ信息为NACK/ACK时，需要较大能量的干扰/噪声(如能量为1的干扰/噪声)才能影响HARQ信息的传输，导致接入网设备检测到的HARQ信息为ACK/NACK，即检测产生错误，所以，第一HARQ信息组合对应的调制符号和第二HARQ信息组合对应的调制符号间的相位差X＝180度可以提高HARQ信息发送时的抗干扰/噪声的能力，进而提高HARQ信息的反馈性能。
第二方面，本申请实施例提供了一种终端设备，该终端设备可以包括：
接收单元，用于在第一下行传输时间间隔TTI接收第一下行数据，在第二下行TTI接收第二下行数据；
处理单元，用于确定重复发送所述第一下行数据对应的第一重复发送混合自动重传请求HARQ信息的第一上行TTI集合以及重复发送所述第二下行数据对应的第二HARQ信息的第二上行TTI集合，所述第一上行TTI集合和所述第二上行TTI集合的 交集包括至少一个上行TTI；
以及，当目标TTI属于所述第一上行TTI集合且不属于所述第二上行TTI集合时，根据所述第一HARQ信息确定所述PUCCH发送资源和所述调制符号；当目标TTI属于所述第二上行TTI集合且不属于所述第一上行TTI集合时，根据所述第二HARQ信息确定所述PUCCH发送资源和所述调制符号；当目标TTI属于所述第一上行TTI集合且属于所述第二上行TTI集合时，根据所述第一HARQ信息和所述第二HARQ信息确定所述PUCCH发送资源和所述调制符号；
发送单元，用于在所述目标TTI中的所述PUCCH发送资源上发送所述调制符号。
其中，终端设备的具体实现方式可以参考第一方面或第一方面的可能的实现方式提供的重复发送HARQ信息的方法中终端设备的行为功能，在此不再重复赘述。因此，该提供的终端设备可以达到与第一方面相同的有益效果。
第三方面，本申请实施例提供了一种终端设备，该终端设备可以实现上述方法实施例中终端设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
在一种可能的设计中，该终端设备的结构中包括处理器、接收器和发送器，该处理器被配置为支持该终端设备执行上述方法中相应的功能。该接收器和发送器用于支持该终端设备与其他网元之间的通信。该终端设备还可以包括存储器、显示器，该存储器用于与处理器耦合，其保存该终端设备必要的程序指令和数据，该显示器可以用于终端设备与用户间进行交互。
第四方面，本申请实施例提供了一种计算机存储介质，用于储存为上述终端设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所设计的程序。
第五方面，本申请实施例提供了一种计算机程序产品，该程序产品储存有上述终端设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所设计的程序。
第六方面，本申请实施例提供了一种装置，该装置以芯片的产品形态存在，该装置的结构中包括处理器和存储器，该存储器用于与处理器耦合，保存该装置必要的程序指令和数据，该处理器用于执行存储器中存储的程序指令，使得该装置执行上述方法中与终端设备相应的功能。
第七方面，本申请实施例提供一种重复发送HARQ信息的方法。终端设备在第一下行TTI接收第一下行控制信息(downlink control information，DCI)和第一下行数据；第一DCI包括PUCCH跳频指示信息，PUCCH跳频指示信息用于指示发送的PUCCH是否在上行TTI内跳频；终端设备确定发送第一下行数据对应的HARQ信息的第一上行TTI集合；终端设备根据PUCCH跳频指示信息，在第一上行TTI集合的每个上行TTI上发送PUCCH。
其中，上述PUCCH在上行TTI内跳频可以指：上行PUCCH在上行TTI内的至少两个不同频段上发送，PUCCH在上行TTI内不跳频可以指：上行PUCCH在上行TTI内的同一频段上发送。
基于上述技术方案，当终端设备在发送HARQ信息时，终端设备根据接入网设备发送的PUCCH跳频指示信息，在每个上行TTI上发送PUCCH，消除了由于终端设备 漏检下行数据导致的PUCCH发送方式不确定的问题，使得PUCCH达到物理资源所允许的最佳传输性能。
结合第七方面，在第七方面的第一种可能的实现方式中，终端设备根据PUCCH跳频指示信息，在第一上行TTI集合的每个上行TTI上发送PUCCH，包括：
当PUCCH跳频指示信息指示发送的PUCCH在上行TTI内跳频时，终端设备在第一上行TTI集合的每个上行TTI上发送至少两个序列，至少两个序列用于指示HARQ信息，且至少两个序列中的至少两个序列位于不同频段。
如此，当终端设备发送PUCCH信息时，由多个序列重复指示HARQ信息，且这些个序列中至少两个不同序列位于不同频段，为PUCCH的发送带来跳频增益。
结合第七方面，在第七方面的第二种可能的实现方式中，终端设备根据PUCCH跳频指示信息，在第一上行TTI集合的每个上行TTI上发送PUCCH，包括：
当PUCCH跳频指示信息指示发送的PUCCH在上行TTI内不跳频时，终端设备在第一上行TTI集合的每个上行TTI上发送参考信号和HARQ调制信号，参考信号和HARQ调制信号位于同一频段，参考信号用于信道估计，HARQ调制信号上承载有HARQ信息。
如此，当终端设备发送PUCCH信息时，由位于同一频段的用于信道估计的参考信号和承载有HARQ信息的调制信号来实现PUCCH的发送，为PUCCH的发送带来相干解调增益。
结合第七方面或第七方面的任一种可能的实现方式，在第七方面的第三种可能的实现方式中，每个PUCCH的时域长度为2个符号或3个符号。
第八方面，本申请实施例提供了一种终端设备，该终端设备可以包括：
接收单元，用于在第一下行传输时间间隔TTI接收第一下行控制信息DCI和第一下行数据；所述第一DCI包括物理上行控制信道PUCCH跳频指示信息，所述PUCCH跳频指示信息用于指示发送的PUCCH是否在上行TTI内跳频；
处理单元，用于确定发送所述第一下行数据对应的重复发送混合自动重传请求HARQ信息的第一上行TTI集合；
发送单元，用于根据所述PUCCH跳频指示信息，在所述第一上行TTI集合的每个上行TTI上发送PUCCH。
其中，终端设备的具体实现方式可以参考第七方面或第七方面的可能的实现方式提供的重复发送HARQ信息的方法中终端设备的行为功能，在此不再重复赘述。因此，该提供的终端设备可以达到与第七方面相同的有益效果。
第九方面，本申请实施例提供了一种终端设备，该终端设备可以实现上述方法实施例中终端设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。
在一种可能的设计中，该终端设备的结构中包括处理器、接收器和发送器，该处理器被配置为支持该终端设备执行上述方法中相应的功能。该接收器和发送器用于支持该终端设备与其他网元之间的通信。该终端设备还可以包括存储器、显示器，该存储器用于与处理器耦合，其保存该终端设备必要的程序指令和数据，该显示器可以用于终端设备与用户间进行交互。
第十方面，本申请实施例提供了一种计算机存储介质，用于储存为上述终端设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所设计的程序。
第十一方面，本申请实施例提供了一种计算机程序产品，该程序产品储存有上述终端设备所用的计算机软件指令，该计算机软件指令包含用于执行上述方面所设计的程序。
第十二方面，本申请实施例提供了一种装置，该装置以芯片的产品形态存在，该装置的结构中包括处理器和存储器，该存储器用于与处理器耦合，保存该装置必要的程序指令和数据，该处理器用于执行存储器中存储的程序指令，使得该装置执行上述方法中与终端设备相应的功能。
第十三方面，本申请实施例提供了一种重复发送HARQ信息的系统，该系统包括第二方面至第六方面中任一方面所述的终端设备和接入网设备；或者包括第七方面至第十二方面中任一方面所述的终端设备和接入网设备。
附图说明
图1为本申请实施例提供的一种网络架构简化示意图；
图2为本申请实施例提供的一种终端设备的组成示意图；
图3为本申请实施例提供的一种重复发送HARQ信息的方法流程图；
图3a为本申请实施例提供的一种重复发送HARQ信息的示意图；
图4为本申请实施例提供的又一种重复发送HARQ信息的方法流程图；
图4a为本申请实施例提供的一种发送的PUCCH示意图；
图4b为本申请实施例提供的又一种发送的PUCCH示意图；
图4c为本申请实施例提供的又一种重复发送HARQ信息的示意图；
图5为本申请实施例提供的又一种终端设备的组成示意图；
图6为本申请实施例提供的一种装置的组成示意图。
具体实施方式
下面将结合附图对本申请实施例的实施方式进行详细描述。
本申请提供的重复发送HARQ信息的方法可以应用于图1所示网络，该网络可以为长期(long term evolution，LTE)网络或者新无线(new radio，NR)网络或者通用移动通信系统(Universal Mobile Telecommunications System，UMTS)网络或者全球移动通讯系统(GlobalSystem for Mobile Communicati，GSM)网络或者802.11系列网络或者其他网络，不予限制。
如图1所示，该网络可以包括：接入网设备和终端设备，其中，接入网络设备和终端设备之间可以通过无线接口或者下一代网络(next generation，NG)接口建立连接实现通信，如：接入网设备可以将下行数据承载在物理下行共享信道(physical downlink shared channel，PDSCH上向终端设备发送，终端设备可以解析接收到的下行数据，将下行数据对应的HARQ信息承载在PUCCH上反馈给接入网设备。可理解的是，图1仅为示例性网络架构图，除图1所示功能节点之外，该网络还可以包括其他功能节点，本申请实施例对此不进行限定。
其中，图1中的接入网设备主要用于实现无线物理层功能、资源调度和无线资源管理、无线接入控制以及移动性管理等功能；终端设备与接入网设备连接之后，继而 接入数据网络，可以为基站(nodeB，NB)、演进型基站(evolution nodeB，eNB)、接入节点、下一代基站(generation nodeB，gNB)、收发点(transmission receive point，TRP)、传输点(transmission point，TP)或某种其它接入单元中的任一接入单元。终端设备可以为(user equipment，UE)，还可以为蜂窝电话、无绳电话、会话发起协议(session initiation protocol，SIP)电话、智能电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、膝上型计算机、手持式通信设备、手持式计算设备、卫星无线设备、无线调制解调器卡和/或用于在无线系统上进行通信的其它设备。
在本申请实施例的一种可能的实现方式中，当图1中的终端设备在第一TTI接收第一下行数据，在第二TTI上接收第二下行数据后，终端设备确定重复发送第一下行数据对应的第一HARQ信息的第一上行TTI集合以及重复发送第二下行数据对应的第二HARQ信息的第二上行TTI集合，第一上行TTI集合和第二上行TTI集合的交集包括至少一个上行TTI，当目标TTI属于第一上行TTI集合且不属于第二上行TTI集合时，终端设备根据第一HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第二上行TTI集合且不属于第一上行TTI集合时，终端设备根据第二HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第一上行TTI集合且属于第二上行TTI集合时，终端设备根据第一HARQ信息和第二HARQ信息确定PUCCH发送资源和调制符号；终端设备在目标TTI中的PUCCH发送资源上发送调制符号。
在本申请实施例的又一种可能的实现方式中，终端设备在第一下行TTI接收第一DCI和第一下行数据；第一DCI包括PUCCH跳频指示信息，PUCCH跳频指示信息用于指示发送的PUCCH是否在上行TTI内跳频；终端设备确定发送第一下行数据对应的HARQ信息的第一上行TTI集合，根据PUCCH跳频指示信息，在第一上行TTI集合的每个上行TTI上发送PUCCH。
具体的，图1中的终端设备可以包括图2所示部件，如图2所示，该终端设备包括至少一个处理器21，存储器22、接收器23、发送器24、通信总线。下面结合图2对终端设备的各个构成部件进行具体的介绍：
处理器21是终端设备的控制中心，可以是一个处理器，也可以是多个处理元件的统称。例如，处理器21是一个中央处理器(central processing unit，CPU)，也可以是特定集成电路(application specific integrated circuit，ASIC)，或者是被配置成实施本申请实施例的一个或多个集成电路，例如：一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)。其中，处理器21可以通过运行或执行存储在存储器22内的软件程序，以及调用存储在存储器22内的数据，执行终端设备的各种功能。
在具体的实现中，作为一种实施例，处理器21可以包括一个或多个CPU，例如图2中所示的CPU0和CPU1。在具体实现中，作为一种实施例，终端设备可以包括多个处理器，例如图2中所示的处理器21和处理器25。这些处理器中的每一个可以是一个单核处理器(single-CPU)，也可以是一个多核处理器(multi-CPU)。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
存储器22可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器22可以独立存在，通过通信总线与处理器21相连接。存储器22也可以和处理器21集成在一起。其中，存储器22用于存储执行本申请实施例提供的方案的软件程序，并由处理器21来控制执行。
接收器23、发送器24，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。
通信总线，可以是工业标准体系结构(industry standard architecture，ISA)总线、外部设备互连(peripheral component，PCI)总线或扩展工业标准体系结构(extended industry standard architecture，EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示，图2中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
需要说明的是，图2中示出的设备结构并不构成对终端设备的限定，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。尽管未示出，终端设备还可以包括电池、摄像头、蓝牙模块、全球定位系统(global positioning system，GPS)模块等，在此不再赘述。
图2所示的终端设备可以执行本申请实施例提供的重复发送HARQ信息的方法中终端设备执行的操作。如：在一种可能的实现方式中，接收器23，用于在第一TTI接收第一下行数据，在第二下行TTI接收第二下行数据；处理器21，用于确定重复发送第一下行数据对应的第一HARQ信息的第一上行TTI集合以及重复发送第二下行数据对应的第二HARQ信息的第二上行TTI集合，第一上行TTI集合和第二上行TTI集合的交集包括至少一个上行TTI；以及，当目标TTI属于第一上行TTI集合且不属于第二上行TTI集合时，根据第一HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第二上行TTI集合且不属于第一上行TTI集合时，根据第二HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第一上行TTI集合且属于第二上行TTI集合时，根据第一HARQ信息和第二HARQ信息确定PUCCH发送资源和调制符号；发送器24，用于在目标TTI中的PUCCH发送资源上发送调制符号。
在又一种可能的实现方式中，接收器23，用于在第一TTI接收第一DCI和第一下行数据；所述第一DCI包括PUCCH跳频指示信息，所述PUCCH跳频指示信息用于指示发送的PUCCH是否在上行TTI内跳频；处理器21，用于确定发送所述第一下行数据对应的HARQ信息的第一上行TTI集合；发送器24，用于根据所述PUCCH跳频指示信息，在所述第一上行TTI集合的每个上行TTI上发送PUCCH。
下面结合图1所示网络，对本申请实施例提供的重复发送HARQ信息的方法进行 介绍。
图3为本申请实施例提供的一种重复发送HARQ信息的方法流程图，如图3所示，该方法可以包括：
步骤301：接入网设备在第一下行TTI发送第一下行数据，在第二下行TTI发送第二下行数据，终端设备在第一下行TTI接收第一下行数据，在第二下行TTI接收第二下行数据。
其中，接入网设备可以为图1中的接入网设备，终端设备可以为图1中的任一终端设备。
下行TTI为接入网设备调度下行数据的时间单位，可以为一个子帧或者一个时隙或者2个时域符号或者3个时域符号或者其他多个时域符号，不予限制。在本申请实施例中，可以将短于1ms的时间单位称为短TTI(short TTI，sTTI)，如：可以将2个时域符号或者3个时域符号称为sTTI。
第一下行TTI为调度第一下行数据的时间单位，第二TTI为调度第二下行数据的时间单位，第一下行TTI和第二下行TTI的时间大小可以是相同的，如：第一下行TTI可以为2个时域符号，第二下行TTI也可以为2个时域符号。第一下行TTI和第二下行TTI可以为时间连续或者时间不连续的TTI，不予限制，如：第二下行TTI可以为与第一下行TTI相邻、且在第一下行TTI之后的下行TTI，还可以为第一下行TTI之后、且与第一下行TTI不相邻的TTI。
下行数据可以为接入网设备发送的以传输块(transport block，TB)为单位的小数据包，接入网设备可以将下行数据承载在PDSCH中发往终端设备，如：步骤301中接入网设备可以在第一下行TTI发送承载有第一下行数据的PDSCH，在第二下行TTI发送承载有第二下行数据的PDSCH，终端设备可以在第一下行TTI接收接入网设备发送的承载有第一下行数据的PDSCH，在第二下行TTI接收接入网设备发送的承载有第二下行数据的PDSCH。在本申请实施例中，发送承载有下行数据的PDSCH与发送PDSCH为同等概念，接收承载有下行数据的PDSCH与接收PDSCH为同等概念，即发送PDSCH相当于发送下行数据，接收PDSCH相当于接收下行数据。
例如，如图3a所示，接入网设备在下行sTTI0上发送PDSCH0，在下行sTTI1上发送PDSCH1，相应的，终端设备在下行sTTI0上接收PDSCH0，在下行sTTI1上接收PDSCH1。
步骤302：终端设备确定重复发送第一下行数据对应的第一HARQ信息的第一上行TTI集合以及重复发送第二下行数据对应的第二HARQ信息的第二上行TTI集合，第一上行TTI集合和第二上行TTI集合的交集包括至少一个上行TTI。
其中，每个下行数据对应的HRAQ信息可以用于指示终端设备解调下行数据后的结果，可以为ACK或者NACK或者非连续性发射(discontinuous transmission，DTX)。当终端设备接收到下行数据包，检验其是否正确，若通过检验，则HARQ信息为ACK；若未通过检验，则HARQ信息为NACK；若终端设备未检测到任何数据传输，则HRAQ信息为DTX。如：终端设备接收到第一下行数据后，经过解调可以得到第一HARQ信息，终端设备接收到第二下行数据后，经过解调可以得到第二HARQ信息。
可选的，终端设备通过下述任一方式获取每个下行数据对应的HARQ信息重复传 输次数NANRep，当终端设备接收到该重复传输次数NANRep，终端设备确定重复发送与该下行数据对应的HARQ信息。HARQ信息重复传输次数NANRep大于等于2，HARQ信息重复传输次数NANRep可以指重复发送同一下行数据对应的HARQ信息的次数，不同业务类型的下行数据，其对应的重复传输次数NANRep可以是不同的或者相同的，不予限制。
方式一：HARQ信息重复传输次数NANRep承载在控制信道中(比如物理下行控制信道(physical downlink control chanell，PDCCH)或其他物理层控制信道，终端设备接收该控制信道，从控制信道中获取重复传输次数NANRep。
方式二：HARQ信息重复传输次数NANRep预先配置在高层信令(比如无线资源控制(radio resource control，RRC)公共信令或专有信令)中，终端设备接收高层信令，从高层信令中获取重复传输次数NANRep。。
可以理解的是，重复发送下行数据对应的HARQ信息的上行TTI集合包括的上行TTI的格式与NANRep是相同的，其中，上行TTI集合的初始上行TTI(即初传HARQ信息的上行TTI)与发送下行数据的下行TTI的时间间隔k也可以通过上述任一方式获取，不再赘述。如：在子帧#n-k上接收到下行数据后，可以在#n～#n+NANRep-1的多个连续上行子帧上重复发送HARQ信息。通常情况下，可以将k取4。
第一上行TTI集合和第二上行TTI集合的交集包括至少一个上行TTI可以指发送第一HARQ信息的上行TTI和发送第二HARQ信息的上行TTI存在重叠的上行TTI。
例如，如图3a所示，终端设备在下行sTTI0上接收PDSCH0，在下行sTTI1上接收PDSCH1，经解调后PDSCH0对应的HARQ0为ACK，PDSCH1对应的HARQ1为NACK，同时，终端设备获取到某个PDSCH对应的NANRep均为2，则终端设备确定在上行sTTI0、上行sTTI1分别发送HARQ0，在上行sTTI1、上行sTTI2分别发送HARQ1，二者存在重叠的上行sTTI1，即上行sTTI1上同时发送ACK和NACK。
步骤303：当目标TTI属于第一上行TTI集合且不属于第二上行TTI集合时，终端设备根据第一HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第二上行TTI集合且不属于第一上行TTI集合时，终端设备根据第二HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第一上行TTI集合且属于第二上行TTI集合时，终端设备根据第一HARQ信息和第二HARQ信息确定PUCCH发送资源和调制符号。
在本申请实施例中，PUCCH发送资源包括频域资、循环移位和正交叠加码，PUCCH发送资源可以为多个下行数据对应的多个PUCCH发送资源中的任一个，如下行数据1对应PUCCH发送资源1，下行数据2对应PUCCH发送资源2，则PUCCH发送资源可以为PUCCH发送资源1或者PUCCH发送资源2。在一种可能的实现方式中，PUCCH发送资源是通过PDCCH中的ACK/NACK资源指示(ACK/NACK resource indicator，ARI)比特位和高层信令预配置的PUCCH发送资源集合指示的，ARI比特位用于指示终端设备采用PUCCH发送资源集合中的哪个PUCCH发送资源，如：PUCCH发送资源集合包含4个PUCCH发送资源：PUCCH发送资源0～PUCCH发送资源3，ARI比特位包括2bit信息，终端设备根据这2bit信息、以及ARI比特位与PUCCH发送资源的对应关系(00对应PUCCH发送资源0、01对应PUCCH发送资源1、10 对应PUCCH发送资源2、11对应PUCCH发送资源3)确定采用4个PUCCH发送资源中的哪个PUCCH发送资源。在又一种可能的实现方式中，终端设备通过PDCCH所占用的控制信道元素(control channel element，CCE)索引(index)和预配置的PUCCH发送资源集合，计算出使用哪一个PUCCH发送资源，具体的，该方式可以参照现有技术，在此不再赘述。
调制符号可以用于指示2比特(bit)信息，如：比特信息00代表调制符号+1，比特信息10代表调制符号+j，比特信息11代表调制符号-1，比特信息01代表调制符号01。
在本申请实施例中，对于任一目标TTI，终端设备可以先确定该目标TTI对于的HARQ信息组合，再根据HARQ信息组合确定该目标TTI上的PUCCH发送资源和调制符号。其中，目标TTI对应的HARQ信息组合可以包括两个HARQ信息，每个HARQ信息为ACK或NACK或DTX。需要说明的是，HARQ信息组合中终端设备最先检验的下行数据对应的HARQ信息在前，其后检验的下行数据对应的HARQ信息在后，即HARQ信息组合中各个HARQ信息按照终端设备检验下行数据的先后顺序进行排序。例如，终端设备在下行sTTI0上对下行数据进行检验，当未检验到下行数据，HARQ信息为DTX，在下行sTTI1(下行sTTI1在下行sTTI0之后)，当检验到下行数据且检验正确，HARQ信息为ACK，此时，若下行sTTI1、下行sTTI0对应的HARQ信息承载在上行sTTI0上发送，则终端设备确定上行sTTI0对应的HARQ信息组合为(DTX，ACK)。例如，如图3a所示，终端设备在上行sTTI0发送的HARQ信息组合为DTX和ACK，在上行sTTI1发送的HARQ信息组合为ACK和NACK，在上行sTTI2上发送的HARQ信息组合为NACK和DTX。
示例性的，当目标TTI属于第一上行TTI集合且不属于第二上行TTI集合时，目标TTI对应的HARQ信息组合包括DTX和第一HARQ信息，终端设备根据DTX和第一HARQ信息确定PUCCH发送资源和调制符号，通常情况下，由于DTX表示终端设备未检测到下行数据或未对任何下行数据进行检测，因此，在本申请实施例中，终端设备根据DTX和第一HARQ信息确定PUCCH发送资源和调制符号意味着终端设备根据第一HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第二上行TTI集合且不属于第一上行TTI集合时，目标TTI对应的HARQ信息组合包括第二HARQ信息和DTX，终端设备根据DTX和第二HARQ信息确定PUCCH发送资源和调制符号，同理，由于DTX表示终端设备未检测到下行数据或未对任何下行数据进行检测，因此，在本申请实施例中，终端设备根据DTX和第二HARQ信息确定PUCCH发送资源和调制符号意味着终端设备根据第二HARQ信息确定PUCCH发送资源和调制符号；当目标TTI属于第一上行TTI集合且属于第二上行TTI集合时，目标TTI对应的HARQ信息组合包括第一HARQ信息和第二HARQ信息，终端设备根据第一HARQ信息和第二HARQ信息确定PUCCH发送资源和调制符号。
一种可能的实现方式中，终端设备可以通过查询存储有HARQ信息组合、PUCCH发送资源以及调制符号间的对应关系的对应关系表，确定目标TTI上的PUCCH发送资源和调制符号，如：查找对应关系表，找到表中与目标TTI上的HARQ信息组合相同的HARQ信息组合，将该HARQ信息组合对应的PUCCH发送资源和调制方式作为 目标TTI上的PUCCH发送资源和调制符号。
例如，下表1表示HARQ信息组合、PUCCH发送资源以及调制符号间的对应关系，当目标TTI对应的HARQ信息组合为DTX和ACK时，通过查表1可知，该目标TTI上的PUCCH发送资源为PUCCH1，调制符号为-1。需要说明的是，终端设备不限于采用查表的方式确定目标TTI上的PUCCCH发送资源和调制符号，还可以通过其他计算方式确定目标TTI上的PUCCH发送资源和调制符号，不予限制。
表1
Figure PCTCN2017111754-appb-000001
步骤304：终端设备在目标TTI中的PUCCH发送资源上发送调制符号。
与现有技术相比，在图3所示技术方案中，当多个HARQ信息在同一个上行TTI(如上述目标TTI)上发送时，终端设备根据该上行TTI对应HARQ信息组合确定PUCCH发送资源和调制符号，在该上行TTI的PUCCH发送资源发送该调制符号，以实现多个HARQ信息的发送。如此，利用PUCCH发送资源和调制符号来指示同一上行TTI上承载的多个HARQ信息，不需要限制接入网设备对下行数据的连续发送，满足了URLLC类业务的低时延要求。
可选的，在图3所示方案中，当第一HARQ信息组合对应的PUCCH发送资源和第二HARQ信息组合对应的PUCCH发送资源相同，且第一HARQ信息组合和第二HARQ信息组合包含的HARQ信息有且仅有一个不同的HRAQ信息，不同的HARQ信息为确认指令ACK或者否认指令NACK时，第一HARQ信息组合对应的调制符号和第二HARQ信息组合对应的调制符号间的相位差为X，其中，不同的HARQ信息对应同一下行数据。
其中，第一HARQ信息组合可以为任一目标TTI对应的HARQ信息组合，第二HARQ信息可以为该目标TTI对应的其他可能的HARQ信息组合。例如，第一HARQ信息可以为表1中的HARQ信息组合(ACK，ACK)，第二HARQ信息可以为表1中的HARQ信息组合(NACK，ACK)。
如此，某一下行数据对应的HARQ信息不论是ACK或者是NACK必定承载在同一PUCCH发送资源，当接入网设备对某个下行数据对应的HARQ信息(NACK或者ACK)进行盲检时，仅在同一PUCCH发送资源上解调调制符号即可，无需在多个PUCCH发送资源上解调多个调制符号，避免了解调多个PUCCH发送资源上的调制符号带来的额外干扰，提高了HARQ信息的可靠性；同时，第一HARQ信息组合对应的 调制符号和所述第二HARQ信息组合对应的调制符号间的相位差为X，保证了某一下行数据对应的ACK/NACK信息的调制方式在不同TTI的同一PUCCH发送资源上是相同的，便于接入网设备将不同上行TTI上解调出的HARQ信息进行合并，以此提高了HARQ信息的准确性。
可选的，第一HARQ信息组合对应的调制符号和第二HARQ信息组合对应的调制符号间的相位差为180度。
如此，当终端设备发送的HARQ信息为NACK/ACK时，需要较大能量的干扰/噪声(如能量为1的干扰/噪声)才能影响HARQ信息的传输，导致接入网设备检测到的HARQ信息为ACK/NACK，即检测产生错误，所以，第一HARQ信息组合对应的调制符号和第二HARQ信息组合对应的调制符号间的相位差X＝180度可以提高HARQ信息发送时的抗干扰/噪声的能力，进而提高HARQ信息的反馈性能。
需要说明的是，表1仅以HARQ信息组合包括两个HARQ信息的情况对PUCCH发送资源和调制符号的确定规则进行了举例说明，可理解的是，HARQ信息组合可以包括三个HARQ信息或者四个HARQ信息或者更多个HARQ信息，当HARQ信息组合包括三个HARQ信息或者四个HARQ信息或者更多个HARQ信息时，PUCCH发送资源和调制符号的确定规则也符合表1所示的规则。具体的，如下表二所示，表二为HARQ信息组合包括三个HARQ信息的情况下确定PUCCH发送资源和调制符号的对应关系表，HARQ信息组合(ACK，ACK，ACK)和HARQ信息组合(NACK，ACK，ACK)仅包括一个不同的HARQ信息，二者对应的PUCCH发送资源同为PUCCH0，且二者的调制符号分别为j和-j，相差180度。
表二
Figure PCTCN2017111754-appb-000002
为了便于理解，以图3a为例，对上述技术方案进行详细描述。
接入网设备为终端设备配置2次HARQ重复传输，其中下行数据PDSCH0的HARQ信息需要在上行sTTI0和上行sTTI1上反馈；下行数据PDSCH1的HARQ信息需要在上行sTTI1和上行sTTI2上反馈，接入网设备为PDSCH0配置PUCCH发送资源0，为PDSCH1配置发送资源1。当终端设备正确接收下行数据PDSCH0(HARQ信息为ACK)且错误接收下行数据PDSCH1(HARQ信息为NACK)，上行sTTI0对应的HARQ信息组合为(DTX，ACK)，上行sTTI1对应的HARQ信息组合为(ACK， NACK)，上行sTTI2对应的HARQ信息组合为(NACK，DTX)，则根据表1，终端设备在上行sTTI0的PUCCH0上发送调制符号-1，在上行sTTI1的PUCCH1上发送调制符号-j，在上行sTTI2的PUCCH1上发送调制符号+1。
对于接入网设备，需要在上行sTTI0的PUCCH0、上行sTTI1的PUCCH1、上行sTTI2的PUCCH1上检测终端设备发送的PUCCH。以接入网设备盲检下行数据PDSCH0的HARQ信息为例：在上行sTTI0上，下行数据PDSCH0的ACK/NACK调制符号分别为-1和+1，在上行sTTI1上，下行数据PDSCH0对应的ACK/NACK调制符号若承载在PUCCH0上，则分别为+j和-j，若承载在PUCCH1上，则分别为-j和+j。可见，ACK/NACK调制符号的相位差永远是180度，因此接入网设备在接收到上行sTTI0的调制符号x0，上行sTTI1的PUCCH0上的调制符号x1，上行sTTI1的PUCCH1上的调制符号x2后(x1和x2中只有一个包含HARQ信息，另一个是噪声)，可以将两个上行sTTI上的调制符号分别以x0-x1/j和x0+x2/j的方式进行合并。
在上述运算中，-x1/j和x2/j实际上是将调制符号x1和x2做了一个相位旋转，使得旋转后的ACK/NACK信息分别使用-1和+1调制，这样就与x0的调制方式一致，进而可以相加合并了。然后接入网设备再将得到的合并值进行HARQ信息的检测(检测器认为ACK/NACK信息分别使用-1和+1调制)，即可得到所需的HARQ信息。经过上述合并之后，PUCCH的可靠性得到提升。
在又一可行方案中，当终端设备确定上行TTI发送PUCCH发送时，终端设备根据物理信令指示(如：PUCCH跳频指示信息)发送PUCCH。具体的，该方案如图4所示。图4为本申请实施例提供的又一重复发送HARQ信息的方法流程图，如图4所示，所述方法包括：
步骤401：接入网设备在第一下行TTT发送第一DCI和第一下行数据，终端设备在第一下行TTI接收第一DCI和第一下行数据。
其中，第一DCI包括PUCCH跳频指示信息，PUCCH跳频指示信息用于指示发送的PUCCH是否在上行TTI内跳频，PUCCH在上行TTI内跳频可以指：上行PUCCH在上行TTI内的至少两个不同频段上发送，PUCCH在上行TTI内不跳频可以指：上行PUCCH在上行TTI内的同一频段上发送。该PUCCH跳频指示信息可以为1bit的信息(0或者1)，用0指示发送的PUCCH在上行TTI内不跳频，用1指示发送的PUCCH在上行TTI内跳频。
步骤402：终端设备确定发送第一下行数据对应的HARQ信息的第一上行TTI集合。
其中，第一上行TTI集合可以包括一个或者多个上行TTI。
步骤402的具体实现方式与图3所示方案中终端设备确定重复发送第一下行数据对应的第一HARQ信息的第一上行TTI集合的实现方式相同，在此不再赘述。
步骤403：终端设备根据PUCCH跳频指示信息，在第一上行TTI集合的每个上行TTI上发送PUCCH。
其中，每个上行TTI上发送的PUCCH可以占用2个符号或者3个符号，不予限制。
一种可能的实现方式中，当PUCCH跳频指示信息指示发送的PUCCH在上行TTI 内跳频时，终端设备在第一上行TTI集合的每个上行TTI上发送至少两个序列(sequence)(简称S)，至少两个序列用于指示HARQ信息，且至少两个序列中的至少两个序列位于不同频段。
其中，至少两个序列中的至少两个序列位于不同频段可以包括：至少两个序列中至少两对相邻序列位于不同频段，或者至少两个序列中仅有一对相邻序列位于不同频段。例如，在sTTI上发送两个序列(S)，每个S位于不同的频段(如图4a所示)，或者，在sTTI上发送三个序列(S)第一个序列在上/下频带发送，第二个序列、第三个序列在下/上频带发送。
如此，当终端设备发送PUCCH信息时，由多个序列重复指示HARQ信息，且这些个序列中至少两个不同序列位于不同频段，为PUCCH的发送带来跳频增益。
又一种可能的实现方式中，当PUCCH跳频指示信息指示发送的PUCCH在上行TTI内不跳频时，终端设备在第一上行TTI集合的每个上行TTI上发送(reference signal)(简称S)和HARQ调制信号(Demodulation Reference Sgnal)(简称D)，，参考信号和HARQ调制信号位于同一频段，参考信号用于信道估计，HARQ调制信号上承载有HARQ信息。
需要说明的是，在该可能的实现方式中，不同上行TTI上发送的PUCCH可以位于同一频段，也可以位于不同频段，不予限制。例如，如图4b所示，sTTI1、sTTI2、sTTI3上分别发送PUCCH，每个PUCCH包括S和D，不同sTTI上的PUCCH处于不同频段。
如此，当终端设备发送PUCCH信息时，由位于同一频段的用于信道估计的参考信号和承载有HARQ信息的调制信号来实现PUCCH的发送，为PUCCH的发送带来相干解调增益。
与现有技术相比，图4提供的技术方案中，当终端设备在发送HARQ信息时，终端设备根据接入网设备发送的PUCCH跳频指示信息，在每个上行TTI上发送PUCCH，消除了由于终端设备漏检下行数据导致的PUCCH发送方式不确定的问题，使得PUCCH达到物理资源所允许的最佳传输性能。
进一步，在图4所示方案中，所述方法还包括：
终端设备在第二TTI上接收第二下行数据；
终端设备确定发送第二下行数据对应的HARQ信息的第二上行TTI集合；
当目标TTI属于第一上行TTI集合且不属于第二上行TTI集合时，终端设备根据在目标TTI上发送第一下行数据对应的HARQ信息；当目标TTI属于第二上行TTI集合且不属于第一上行TTI集合时，终端设备根据在目标TTI上发送第二下行数据对应的HARQ信息；当目标TTI属于第一上行TTI集合且属于第二上行TTI集合时，终端设备根据在目标TTI上发送第一下行数据或者第二下行数据对应的HARQ信息，即保证每个上行TTI仅发送一个下行数据对应的HARQ信息。
示例性的，当终端设备在同一上行TTI上发送至少两个HARQ信息时，可以根据预定义规则仅从至少两个HARQ信息中选择出一个HARQ信息发送。其中，预定义规则可以为覆盖原则或者先占原则或者公平原则。例如，如图4c所示，当在上行sTTI1上发送两个HARQ信息时，删除下行数据PDSCH0对应的HARQ信息，仅保证在上 行sTTI1的PUCCH上发送一个HARQ信息。
覆盖原则可以指终端设备根据时间靠后的接入网设备的指示而定。例如，上行sTTI1要发送两个下行数据的HARQ信息，接入网设备先后指示在上行sTTI1上发送下行数据PDSCH0的HARQ信息、下行数据PDSCH1的HARQ信息，终端设备根据覆盖原则确定在上行sTTI1上不发送下行数据PDSCH0的HARQ信息。
先占原则与覆盖原则相反，先占原则可以指终端设备根据时间靠后的接入网设备的指示而定。例如，上行sTTI1要发送两个下行数据的HARQ信息，接入网设备先后指示在上行sTTI1上发送下行数据PDSCH0的HARQ信息、下行数据PDSCH1的HARQ信息，终端设备根据先占原则确定在上行sTTI1上不发送下行数据PDSCH1的HARQ信息。
公平原则主要保证每个HARQ信息在相同数量的PUCCH上发送或者每个HARQ信息占用的PUCCH的数量相差不大。例如，下行数据PDSCH0的HARQ信息在上行六个sTTI上发送，下行数据PDSCH1的HARQ信息在上行sTTI1～sTTI5五个sTTI上发送sTTI0～sTTI5，其中，有五个sTTI同时发送两个HARQ信息，终端设备根据公平原则确定在上行sTTI0～sTTI2上发送下行数据PDSCH0的HARQ信息，在上行sTTI3～sTTI5上发送下行数据PDSCH1的HARQ信息，保证了每个HARQ信息在相同数量的PUCCH上发送。
如此，保证每个上行TTI仅发送一个下行数据对应的HARQ信息，避免了同一上行TTI上同时发送多个HARQ带来的问题。
上述主要从接入网设备和终端设备交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个网元，例如接入网设备和终端设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对接入网设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用对应各个功能划分各个功能模块的情况下，图5示出了终端设备的又一种可能的组成示意图，该终端设备可以用于执行上述实施例中涉及的终端设备的功能。如图5所示，该终端设备可以包括：接收单元50、处理单元51、发送单元52；
一种可能的实现方式中，接收单元50，用于在第一下行传输时间间隔TTI接收第一下行数据，在第二下行TTI接收第二下行数据。例如，接入单元50可以支持终端设备执行步骤301。
处理单元51，用于确定重复发送所述第一下行数据对应的第一重复发送混合自动 重传请求HARQ信息的第一上行TTI集合以及重复发送所述第二下行数据对应的第二HARQ信息的第二上行TTI集合，所述第一上行TTI集合和所述第二上行TTI集合的交集包括至少一个上行TTI；以及，当目标TTI属于所述第一上行TTI集合且不属于所述第二上行TTI集合时，根据所述第一HARQ信息确定所述PUCCH发送资源和所述调制符号；当目标TTI属于所述第二上行TTI集合且不属于所述第一上行TTI集合时，根据所述第二HARQ信息确定所述PUCCH发送资源和所述调制符号；当目标TTI属于所述第一上行TTI集合且属于所述第二上行TTI集合时，根据所述第一HARQ信息和所述第二HARQ信息确定所述PUCCH发送资源和所述调制符号。例如，处理单元51可以支持终端设备执行步骤302和步骤303。
发送单元52，用于在所述目标TTI中的所述PUCCH发送资源上发送所述调制符号。例如，发送单元52可以支持终端设备执行步骤304。
又一种可能的实现方式中，接收单元50，用于在第一下行传输时间间隔TTI接收第一下行控制信息DCI和第一下行数据；所述第一DCI包括物理上行控制信道PUCCH跳频指示信息，所述PUCCH跳频指示信息用于指示发送的PUCCH是否在上行TTI内跳频。例如，接入单元50可以支持终端设备执行步骤401。
处理单元51，用于确定发送所述第一下行数据对应的重复发送混合自动重传请求HARQ信息的第一上行TTI集合。例如，处理单元51可以支持终端设备执行步骤402。
发送单元52，用于根据所述PUCCH跳频指示信息，在所述第一上行TTI集合的每个上行TTI上发送PUCCH。例如，发送单元52可以支持终端设备执行步骤403。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。本申请实施例提供的终端设备，用于执行上述重复发送HARQ信息的方法，因此可以达到与上述重复发送HARQ信息的方法相同的效果。
在采用集成的单元的情况下，图6示出了一种装置，该装置以芯片的产品形态存在，用于执行上述实施例中终端设备的功能，如图6所示，该装置可以包括：处理模块60和通信模块61。
处理模块60用于对装置的动作进行控制管理，例如，处理模块60用于支持该装置执行步骤302、步骤303、步骤402和/或用于本文所描述的技术的其它过程。通信模块61用于支持装置与其他网络实体的通信，例如与图1示出的接入网设备或网络实体之间的通信。装置还可以包括存储模块62，用于存储装置的程序代码和数据。
其中，处理模块60可以是处理器或控制器。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块61可以为集成接收器和发送器的模块等。存储模块62可以是存储器。
当处理模块60为处理器，通信模块61为为集成接收器和发送器的模块，存储模块62为存储器时，本申请实施例所涉及的装置可以为图2所示的装置。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要 而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种重复发送混合自动重传请求HARQ信息的方法，其特征在于，所述方法包括：
    终端设备在第一下行传输时间间隔TTI接收第一下行数据，在第二下行TTI接收第二下行数据；
    所述终端设备确定重复发送所述第一下行数据对应的第一HARQ信息的第一上行TTI集合以及重复发送所述第二下行数据对应的第二HARQ信息的第二上行TTI集合，所述第一上行TTI集合和所述第二上行TTI集合的交集包括至少一个上行TTI；
    当目标TTI属于所述第一上行TTI集合且不属于所述第二上行TTI集合时，所述终端设备根据所述第一HARQ信息确定所述PUCCH发送资源和所述调制符号；当目标TTI属于所述第二上行TTI集合且不属于所述第一上行TTI集合时，所述终端设备根据所述第二HARQ信息确定所述PUCCH发送资源和所述调制符号；当目标TTI属于所述第一上行TTI集合且属于所述第二上行TTI集合时，所述终端设备根据所述第一HARQ信息和所述第二HARQ信息确定所述PUCCH发送资源和所述调制符号；
    所述终端设备在所述目标TTI中的所述PUCCH发送资源上发送所述调制符号。
  2. 根据权利要求1的方法，其特征在于，
    当第一HARQ信息组合对应的PUCCH发送资源和第二HARQ信息组合对应的PUCCH发送资源相同，且所述第一HARQ信息组合和第二HARQ信息组合包含的HARQ信息有且仅有一个不同的HARQ信息，所述不同的HARQ信息为确认指令ACK或者否认指令NACK时，所述第一HARQ信息组合对应的调制符号和所述第二HARQ信息组合对应的调制符号间的相位差为X；
    其中，所述第一HARQ信息组合包括至少两个HARQ信息，所述第二HARQ信息组合包括至少两个HARQ信息。
  3. 根据权利要求2所述的方法，其特征在于，
    所述X＝180度。
  4. 一种重复发送混合自动重传请求HARQ信息的方法，其特征在于，所述方法包括：
    所述终端设备在第一下行传输时间间隔TTI接收第一下行控制信息DCI和第一下行数据；所述第一DCI包括物理上行控制信道PUCCH跳频指示信息，所述PUCCH跳频指示信息用于指示发送的PUCCH是否在上行TTI内跳频；
    所述终端设备确定发送所述第一下行数据对应的HARQ信息的第一上行TTI集合；
    所述终端设备根据所述PUCCH跳频指示信息，在所述第一上行TTI集合的每个上行TTI上发送PUCCH。
  5. 根据权利要求4所述的方法，其特征在于，所述终端设备根据所述PUCCH跳频指示信息，在所述第一上行TTI集合的每个上行TTI上发送PUCCH，包括：
    当所述PUCCH跳频指示信息指示发送的PUCCH在上行TTI内跳频时，所述终端设备在所述第一上行TTI集合的每个上行TTI上发送至少两个序列，所述至少两个序列用于指示所述HARQ信息，且所述至少两个序列中的至少两个序列位于不同频段。
  6. 根据权利要求4所述的方法，其特征在于，所述终端设备根据所述PUCCH跳 频指示信息，在所述第一上行TTI集合的每个上行TTI上发送PUCCH，包括：
    当所述PUCCH跳频指示信息指示发送的PUCCH在上行TTI内不跳频时，所述终端设备在所述第一上行TTI集合的每个上行TTI上发送参考信号和HARQ调制信号，所述参考信号和所述HARQ调制信号位于同一频段，所述参考信号用于信道估计，所述HARQ调制信号上承载有所述HARQ信息。
  7. 根据权利要求4-6任一项所述的方法，其特征在于，
    每个所述PUCCH的时域长度为2个符号或3个符号。
  8. 一种终端设备，其特征在于，所述终端设备包括：
    接收器，用于在第一下行传输时间间隔TTI接收第一下行数据，在第二下行TTI接收第二下行数据；
    处理器，用于确定重复发送所述第一下行数据对应的第一重复发送混合自动重传请求HARQ信息的第一上行TTI集合以及重复发送所述第二下行数据对应的第二HARQ信息的第二上行TTI集合，所述第一上行TTI集合和所述第二上行TTI集合的交集包括至少一个上行TTI；
    以及，当目标TTI属于所述第一上行TTI集合且不属于所述第二上行TTI集合时，根据所述第一HARQ信息确定所述PUCCH发送资源和所述调制符号；当目标TTI属于所述第二上行TTI集合且不属于所述第一上行TTI集合时，根据所述第二HARQ信息确定所述PUCCH发送资源和所述调制符号；当目标TTI属于所述第一上行TTI集合且属于所述第二上行TTI集合时，根据所述第一HARQ信息和所述第二HARQ信息确定所述PUCCH发送资源和所述调制符号；
    发送器，用于在所述目标TTI中的所述PUCCH发送资源上发送所述调制符号。
  9. 根据权利要求8所述的终端设备，其特征在于，
    当第一HARQ信息组合对应的PUCCH发送资源和第二HARQ信息组合对应的PUCCH发送资源相同，且所述第一HARQ信息组合和第二HARQ信息组合包含的HARQ信息有且仅有一个不同的HARQ信息，所述不同的HARQ信息为确认指令ACK或者否认指令NACK时，所述第一HARQ信息组合对应的调制符号和所述第二HARQ信息组合对应的调制符号间的相位差为X；
    其中，所述第一HARQ信息组合包括至少两个HARQ信息，所述第二HARQ信息组合包括至少两个HARQ信息。
  10. 根据权利要求9所述的终端设备，其特征在于，
    所述X＝180度。
  11. 一种终端设备，其特征在于，所述终端设备包括：
    接收器，用于在第一下行传输时间间隔TTI接收第一下行控制信息DCI和第一下行数据；所述第一DCI包括物理上行控制信道PUCCH跳频指示信息，所述PUCCH跳频指示信息用于指示发送的PUCCH是否在上行TTI内跳频；
    处理器，用于确定发送所述第一下行数据对应的重复发送混合自动重传请求HARQ信息的第一上行TTI集合；
    发送器，用于根据所述PUCCH跳频指示信息，在所述第一上行TTI集合的每个上行TTI上发送PUCCH。
  12. 根据权利要求11所述的终端设备，其特征在于，
    所述发送器，具体用于当所述PUCCH跳频指示信息指示发送的PUCCH在上行TTI内跳频时，在所述第一上行TTI集合的每个上行TTI上发送至少两个序列，所述至少两个序列用于指示所述HARQ信息，且所述至少两个序列中的至少两个序列位于不同频段。
  13. 根据权利要求11所述的终端设备，其特征在于，
    所述发送器，具体用于当所述PUCCH跳频指示信息指示发送的PUCCH在上行TTI内不跳频时，在所述第一上行TTI集合的每个上行TTI上发送参考信号和HARQ调制信号，所述参考信号和所述HARQ调制信号位于同一频段，所述参考信号用于信道估计，所述HARQ调制信号上承载有所述HARQ信息。
  14. 根据权利要求11-13任一项所述的终端设备，其特征在于，
    每个所述PUCCH的时域长度为2个符号或3个符号。
  15. 一种装置，包括：至少一个处理器，以及存储器；其特征在于，
    所述存储器用于存储计算机程序，使得所述计算机程序被所述至少一个处理器执行时实现如权利要求1-3中任一项所述的重复发送混合自动重传请求HARQ信息的方法。
  16. 一种计算机存储介质，其上存储有计算机程序，其特征在于，所述程序被处理器执行时实现如权利要求1-3中任一项所述的重复发送混合自动重传请求HARQ信息的方法。
  17. 一种装置，包括：至少一个处理器，以及存储器；其特征在于，
    所述存储器用于存储计算机程序，使得所述计算机程序被所述至少一个处理器执行时实现如权利要求4-7中任一项所述的重复发送混合自动重传请求HARQ信息的方法。
  18. 一种计算机存储介质，其上存储有计算机程序，其特征在于，所述程序被处理器执行时实现如权利要求4-7中任一项所述的重复发送混合自动重传请求HARQ信息的方法。
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