WO2018018620A1 - 反馈ack/nack信息的方法、终端设备和网络侧设备 - Google Patents

反馈ack/nack信息的方法、终端设备和网络侧设备 Download PDF

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Publication number
WO2018018620A1
WO2018018620A1 PCT/CN2016/092359 CN2016092359W WO2018018620A1 WO 2018018620 A1 WO2018018620 A1 WO 2018018620A1 CN 2016092359 W CN2016092359 W CN 2016092359W WO 2018018620 A1 WO2018018620 A1 WO 2018018620A1
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WIPO (PCT)
Prior art keywords
ack
uplink data
nack information
terminal device
information corresponding
Prior art date
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PCT/CN2016/092359
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English (en)
French (fr)
Inventor
唐海
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广东欧珀移动通信有限公司
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Filing date
Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to PCT/CN2016/092359 priority Critical patent/WO2018018620A1/zh
Priority to CN201680087389.5A priority patent/CN109417444A/zh
Priority to US16/306,168 priority patent/US20200374086A1/en
Priority to EP16910200.1A priority patent/EP3451567B1/en
Priority to TW106123115A priority patent/TWI696360B/zh
Publication of WO2018018620A1 publication Critical patent/WO2018018620A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method for feeding back ACK/NACK information, a terminal device, and a network side device.
  • the base station may perform an Acknowledge (ACK)/Not Acknowledge (NACK) information corresponding to the uplink data transmitted by the terminal device through a physical hybrid automatic retransmission indication channel (Physical).
  • the Hybrid ARQ Indicator Channel (PHICH) is transmitted to the terminal device, and the terminal device detects the ACK/NACK information on the corresponding PHICH resource.
  • PHICH Hybrid ARQ Indicator Channel
  • the present application provides a method for feeding back ACK/NACK information, a terminal device and a network side device, to more flexibly feed back ACK/NACK information to a terminal device.
  • the first aspect provides a method for feeding back ACK/NACK information, including: the terminal device sends uplink data to the network side device; the terminal device receives the first downlink control information DCI sent by the network side device, where The first DCI includes ACK/NACK information corresponding to the uplink data; and the terminal device determines ACK/NACK information corresponding to the uplink data according to the first DCI.
  • the ACK/NACK information can be transmitted in the existing control channel resources by using the DCI to carry the ACK/NACK information, and it is not necessary to design an independent channel (PHICH) for the ACK/NACK information in the LTE system and allocate independent physical resources, thereby improving Resource utilization.
  • DCI's transmission method is more reliable than PHICH.
  • the first DCI includes an ACK/NACK information sequence, and the ACK/NACK information sequence is composed of multiple ACK/NACK information, the ACK/NACK information The sequence includes ACK/NACK information corresponding to the uplink data.
  • the plurality of ACK/NACKs The information respectively corresponds to uplink data transmission of multiple terminal devices, or the multiple ACK/NACK information respectively correspond to multiple uplink data transmissions of the terminal device.
  • the determining, by the terminal device, the ACK/NACK information corresponding to the uplink data, according to the first DCI includes: determining, by the terminal device, the uplink data Position information of the corresponding ACK/NACK information; the terminal device determines ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence according to the location information.
  • the location information may indicate the location of the ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence.
  • the determining, by the terminal device, the location information of the ACK/NACK information corresponding to the uplink data includes: receiving, by the terminal device, an indication sent by the network side device The terminal device determines location information of the ACK/NACK information corresponding to the uplink data according to the indication information.
  • the location information may directly indicate the location of the ACK/NACK information, so that the terminal device can directly determine the ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence according to the location information.
  • the indication information is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is It is a DCI for scheduling the uplink data.
  • the foregoing indication information may be carried in other information sent by the network side device to the terminal device, so that the terminal device can obtain the location information of the ACK/NACK information corresponding to the uplink data.
  • the determining, by the terminal device, the location information of the ACK/NACK information corresponding to the uplink data the determining, by the terminal device, determining, according to the scheduling information of the uplink data, The location information of the ACK/NACK information corresponding to the uplink data, where the scheduling information of the uplink data includes at least one of the following information: a control channel unit CCE occupied by a DCI that schedules the uplink data; the uplink data The occupied physical resource; the demodulation reference information DMRS configuration information of the uplink data.
  • the terminal device can also indirectly determine the location information of the ACK/NACK information corresponding to the uplink data by using the scheduling information.
  • the terminal device determines, according to the location information, the uplink data corresponding to the ACK/NACK information sequence.
  • the ACK/NACK information includes: when the location information is an index of the ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence, the terminal device is in the ACK according to the index.
  • the ACK/NACK information corresponding to the uplink data is determined in the NACK information sequence.
  • the terminal device determines, according to the location information, ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence, including: When the location information is an index of the first bit of the ACK/NACK information corresponding to the uplink data in all the bits included in the ACK/NACK information sequence, the terminal device obtains the ACK according to the index.
  • the terminal device Determining, in the NACK information sequence, a first bit of the ACK/NACK information corresponding to the uplink data; the terminal device determining, according to the number of bits of the ACK/NACK information corresponding to the uplink data, from the ACK/NACK information sequence Other bits of the ACK/NACK information corresponding to the uplink data.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is based on a maximum number of transmission blocks supported by the terminal device in a single uplink transmission or the uplink The number of transport blocks contained in the data is determined.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is preset.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is greater than the number of transmission blocks included in the uplink data, and the ACK/NACK information corresponding to the uplink data.
  • the first type of bits are used to indicate the ACK/NACK information corresponding to the transport block included in the uplink data, and the remaining bits of the ACK/NACK information corresponding to the uplink data except the first type of bits are fixed values or The same value as the first type of bit.
  • the first DCI further includes hybrid automatic repeat request HARQ timing information, where the HARQ timing information is used to indicate a HARQ retransmission timing of the uplink data.
  • the cyclic redundancy check CRC of the first DCI is scrambled by a public wireless network temporary identity RNTI.
  • a method for feeding back ACK/NACK information includes: receiving, by a network side device, uplink data sent by a terminal device; and determining, by the network side device, ACK/NACK information corresponding to the uplink data; The device sends the first downlink control information DCI to the terminal device, where the first DCI includes ACK/NACK information corresponding to the uplink data.
  • Carrying ACK/NACK information through DCI can be transmitted in existing control channel resources
  • the ACK/NACK information does not need to design a separate channel (PHICH) for ACK/NACK information in the LTE system and allocates independent physical resources, thereby improving resource utilization.
  • DCI's transmission method is more reliable than PHICH.
  • the first DCI includes an ACK/NACK information sequence, and the ACK/NACK information sequence is composed of multiple ACK/NACK information, the ACK/NACK information The sequence includes ACK/NACK information corresponding to the uplink data.
  • the multiple ACK/NACK information respectively correspond to uplink data transmissions of multiple terminal devices, or the multiple ACK/NACK information respectively correspond to the terminal Multiple upstream data transmissions of the device.
  • the DCI can be sent only on the frequency domain resource where the uplink data is located, without occupying the entire system bandwidth, which improves the flexibility of the control channel design and reduces the occupation of bandwidth resources.
  • the method further includes: the network side device sending the indication information to the terminal device, where the indication information is used to indicate an ACK corresponding to the uplink data. /NACK information location information.
  • the network side device directly indicates the location information of the ACK/NACK information corresponding to the uplink data by using the indication information, so that the terminal device can directly determine the ACK/NACK information corresponding to the uplink data according to the indication information.
  • the indication information is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is It is a DCI for scheduling the uplink data.
  • the foregoing indication information may be carried in other information sent by the network side device to the terminal device, so that the terminal device can obtain the location information of the ACK/NACK information corresponding to the uplink data.
  • the method further includes: the network side device transmitting scheduling information of the uplink data to the terminal device, so that the terminal device is configured according to the The scheduling information is used to determine the location information of the ACK/NACK information corresponding to the uplink data, where the scheduling information of the uplink data includes at least one of the following information: a control channel unit CCE occupied by the DCI that schedules the uplink data; Describe the physical resources occupied by the uplink data; Demodulation reference information DMRS configuration information of the uplink data.
  • the terminal device can also indirectly determine, by using the scheduling information, the location of the ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is based on a maximum number of transmission blocks supported by the terminal device in a single uplink transmission or the uplink The number of transport blocks contained in the data is determined.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is preset.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is greater than the number of transmission blocks included in the uplink data, and the ACK/NACK information corresponding to the uplink data.
  • the first type of bits are used to indicate the ACK/NACK information corresponding to the transport block included in the uplink data, and the remaining bits of the ACK/NACK information corresponding to the uplink data except the first type of bits are fixed values or The same value as the first type of bit.
  • the DCI includes hybrid automatic repeat request (HARQ) timing information, and the HARQ timing information is used to indicate a HARQ retransmission timing of the uplink data.
  • HARQ hybrid automatic repeat request
  • the cyclic redundancy check CRC of the first DCI is scrambled by a public wireless network temporary identity RNTI.
  • the uplink data is uplink data that is sent by the terminal device multiple times, and each bit of the ACK/NACK information corresponding to the uplink data corresponds to at least one uplink data of the terminal device or at least one Transport block.
  • one bit of the ACK/NACK information corresponding to the uplink data may correspond to one uplink data or one transport block of the terminal device, and one bit of the ACK/NACK information corresponding to the uplink data may also correspond to multiple uplink data of the terminal device or Multiple transport blocks.
  • any one of the multiple ACK/NACK information corresponds to an uplink data transmission of a terminal device. That is to say, one ACK/NACK information can only correspond to the uplink data transmission of one terminal device, and the uplink data transmission of one terminal device can correspond to one or more ACK/NACK information.
  • the method further includes: determining, by the network side device, a scrambling sequence of the cyclic redundancy code check CRC check code of the first DCI according to system parameters of the terminal device.
  • the system parameter here may be a cell radio network temporary identifier (Cell Radio Network)
  • User-specific parameters such as Temporary Identifier (C-RNTI) may be RNTIs known to terminals such as TPC-PUSCH-RNTI, or RNTIs known to other newly defined terminals.
  • C-RNTI Temporary Identifier
  • the CRC check code of the first DCI and the scrambling sequence of the CRC check code enable the terminal device to accurately acquire the ACK/NACK information corresponding to the uplink data from the first DCI.
  • the terminal device may determine a scrambling sequence of the CRC of the first DCI according to its own system parameter, so that the ACK/NACK information corresponding to the uplink data can be accurately obtained from the first DCI.
  • the method when the uplink data corresponds to NACK information, the method further includes: the terminal device performing HARQ retransmission on the uplink data.
  • the multiple terminal devices when the multiple ACK/NACK information respectively corresponds to uplink data transmission of multiple terminal devices, the multiple terminal devices respectively correspond to at least two basic parameter sets.
  • multiple data transmissions of the terminal device correspond to at least two basic parameter sets.
  • a terminal device comprising means for performing the method of the first aspect.
  • a network side device comprising means for performing the method in the second aspect.
  • a terminal device including a memory, a transceiver, and a processor, the memory storing a program, the processor is configured to execute a program, and when the program is executed, the processor is based on the transceiver The method of the first aspect is performed.
  • a sixth aspect a network side device including a memory, a transceiver, and a processor, wherein the memory stores a program, the processor is configured to execute a program, and when the program is executed, the processor is based on the transceiver The method of the second aspect is performed.
  • a computer readable medium storing program code for execution by a terminal device, the program code comprising instructions for performing the method of the first aspect.
  • a computer readable medium storing program code for execution by a network side device, the program code comprising instructions for performing the method of the second aspect.
  • FIG. 1 is a schematic flowchart of a method for feeding back ACK/NACK information according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a method for feeding back ACK/NACK information according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a method for feeding back ACK/NACK information according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method for feeding back ACK/NACK information according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • the current communication system can be applied especially to the future fifth generation mobile communication technology (5G) system.
  • 5G fifth generation mobile communication technology
  • the terminal device in the embodiment of the present invention may also be referred to as a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, and a terminal.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network side device in the embodiment of the present invention may be a device for communicating with a terminal device, where the network side device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station in a WCDMA system (NodeB). , NB), may also be an evolved base station (Evolutional NodeB, eNB or eNodeB) in the LTE system, or may be a wireless controller in a cloud radio access network (CRAN) scenario, or the network side
  • the device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network side device in a future 5G network, or a network side device in a future evolved PLMN network, and the like.
  • FIG. 1 is a schematic flowchart of a method for feeding back ACK/NACK information according to an embodiment of the present invention.
  • the method of Figure 1 includes:
  • the terminal device sends uplink data to the network side device.
  • the network side device After the terminal device sends the uplink data to the network side device, the network side device detects the uplink data sent by the terminal device to determine the ACK/NACK information corresponding to the uplink data.
  • the terminal device receives first downlink control information (Downlink Control Information, DCI) sent by the network side device, where the first DCI includes ACK/NACK information corresponding to the uplink data.
  • DCI Downlink Control Information
  • the method provided by the embodiment of the present invention carries the ACK/NACK information through the DCI, and the DCI can be transmitted on the entire system bandwidth or on some bandwidth resources, and the ACK/NACK information can be flexibly fed back.
  • the embodiment of the present invention can be applied to the following scenario: in the fifth generation mobile communication technology (5G), the user equipment (User Equipment, UE) can support multiple different types of basic parameter sets (numerology) in one carrier, and different
  • the data transmission of the basic parameter set can be frequency division multiplexed (FDM), that is, the entire system bandwidth can be divided into multiple regions, each region corresponding to a basic parameter set, and resources corresponding to different basic parameter sets. Each area transmits uplink data.
  • FDM frequency division multiplexed
  • the ACK/NACK information is carried by the DCI, and the DCI can be transmitted on the entire system bandwidth or on part of the bandwidth resources, and the ACK/NACK information can be flexibly fed back.
  • the ACK/NACK information of the embodiment of the present invention is information for whether the feedback network side device correctly detects the uplink data sent by the terminal device, and the ACK/NACK information may specifically be ACK information or NACK information, and the ACK information indicates the network side device.
  • the uplink data sent by the terminal device is correctly detected, and the NACK information indicates that the network device does not correctly detect the terminal device.
  • the uplink data sent by the terminal device needs to resend the uplink data to the network side device.
  • the uplink data corresponds to the ACK information.
  • the first DCI includes the ACK information corresponding to the uplink data.
  • the uplink data corresponds to the NACK information.
  • the first DCI includes the NACK information corresponding to the uplink data.
  • the network side device The terminal device may be prompted to resend the uplink data.
  • the network side device detects each transport block sent by the terminal device, and then uplinks.
  • the ACK/NACK information corresponding to the data may include a plurality of bits, each bit is used to indicate the reception status of each transport block by the network side device, and after receiving the ACK/NACK information, the terminal device determines that each transport block corresponds to an ACK. Still NACK, if a NACK corresponding to a certain transport block in the uplink data, the transport block is retransmitted.
  • first DCI may only include ACK/NACK information corresponding to uplink data sent by the terminal device, and may also include an ACK/NACK information sequence composed of multiple ACK/NACK information, and the ACK/NACK information sequence The ACK/NACK information corresponding to the uplink data described above is included.
  • the terminal device determines ACK/NACK information corresponding to the uplink data according to the first DCI.
  • the ACK/NACK information can be transmitted in the existing control channel resources by using the DCI to carry the ACK/NACK information, and it is not necessary to design an independent channel (PHICH) for the ACK/NACK information in the LTE system and allocate the independent. Physical resources, thereby increasing resource utilization.
  • DCI's transmission method is more reliable than PHICH.
  • the multiple ACK/NACK information in the ACK/NACK information sequence may correspond to the uplink data transmission of the multiple terminal devices, or the multiple ACK/NACK information may also correspond to the foregoing.
  • Multiple uplink data transmissions of the terminal device may correspond to at least one basic parameter set, or the multiple uplink data transmissions of the terminal device may correspond to at least one basic parameter set.
  • the DCI can be sent only on the frequency domain resource where the uplink data is located, without occupying the entire system bandwidth, which improves the flexibility of the control channel design and reduces the occupation of bandwidth resources.
  • each terminal device When a plurality of ACK/NACK information in the ACK/NACK information sequence respectively correspond to uplink data transmissions of a plurality of terminal devices, each terminal device respectively corresponds to one ACK/NACK information in the ACK/NACK information sequence.
  • the ACK/NACK information sequence When multiple ACK/NACK information in the ACK/NACK information sequence respectively correspond to multiple uplink data transmissions of the same terminal device, one terminal device occupies all ACK/NACK information of the ACK/NACK information sequence, and different ACK/NACK information is used. ACK/NACK feedback for different uplink data transmissions of the terminal device. For example, if the ACK/NACK information sequence has a length of N and each ACK/NACK information is 1 bit, the ACK/NACK information sequence includes ACK/NACK information corresponding to N times of uplink data transmissions before the terminal device.
  • the ACK/NACK information corresponding to the uplink data of the plurality of terminal devices or the ACK/NACK information corresponding to the multiple uplink data of one terminal device can be carried to different terminal devices by the ACK/NACK information sequence in the first DCI. Feedback of the respective ACK/NACK information or feedback of ACK/NACK information of different uplink data to the same terminal device improves resource utilization and reduces unnecessary signaling overhead.
  • any one of the foregoing ACK/NACK information may only correspond to uplink data transmission of one terminal device, that is, one ACK/NACK information can only correspond to uplink data transmission of one terminal device at most.
  • the uplink data transmission of one terminal device may correspond to one or more ACK/NACK information.
  • the first DCI may be a DCI dedicated to transmitting ACK/NACK information, and the first DCI includes only ACK/NACK information or an ACK/NACK information sequence.
  • the first DCI may also be a DCI for other purposes, such as DCI for scheduling data transmission or DCI for power control, in which case ACK/NACK information may be carried in the first DCI, and other controls The information is transmitted together.
  • the ACK/NACK information corresponding to the uplink data may correspond to the uplink data by using one bit in the ACK/NACK information, and set the remaining bits to a fixed value. Or each bit in the ACK/NACK information corresponds to the foregoing data. At this time, each bit of the ACK/NACK information has the same value, and is used to indicate ACK/NACK feedback of the uplink data.
  • the uplink data includes a plurality of transport blocks
  • the ACK/NACK information corresponding to the uplink data may correspond to one transport block or multiple transport blocks of the uplink data by using one bit of the ACK/NACK information. For example, when the uplink data includes 2 transport blocks, and the ACK/NACK information corresponding to the uplink data is 2 bits in total, then the One bit of the ACK/NACK information, one transport block, may also correspond to two transport blocks.
  • the one bit of the ACK/NACK information corresponding to the uplink data may correspond to the uplink data sent by the terminal device at one time, or may correspond to the uplink data sent by the terminal device multiple times. .
  • the ACK/NACK information corresponding to the multiple transmission blocks of the uplink data or the uplink data may be compared and operated. Then, a bit is used to represent the result of the operation.
  • the information represented by the bit is ACK information
  • multiple transport blocks indicating multiple uplink data or uplink data are received by the network side device, and when the information represented by the bit is NACK
  • the terminal device needs to resend the uplink data or the uplink data to the network side device. Multiple transport blocks.
  • determining, by the terminal device, the ACK/NACK information corresponding to the uplink data according to the first DCI includes: determining, by the terminal device, location information of the ACK/NACK information corresponding to the uplink data; the terminal device determining, according to the location information, The ACK/NACK information corresponding to the uplink data.
  • the terminal device may determine location information of the ACK/NACK information corresponding to the uplink data by using the following methods.
  • the terminal device directly determines the location information of the ACK/NACK information corresponding to the uplink data according to the indication information sent by the network side device.
  • the indication information may be sent by the network side device before the first DCI is sent or the first DCI is sent.
  • the indication information may directly indicate the location information of the ACK/NACK information corresponding to the uplink data (for example, when When the ACK/NACK information sequence includes a total of eight ACK/NACK information, the indication information has three bits, and is used to indicate that the ACK/NACK information corresponding to the uplink data is the third ACK/NACK in the ACK/NACK information sequence. Information), the terminal device can directly determine the location information of the corresponding ACK/NACK information after receiving the indication information.
  • the foregoing indication information may be carried in the RRC signaling or the second DCI sent by the network side device to the terminal device, where the second DCI may be the DCI of the network side device scheduling terminal device to send the uplink data.
  • the terminal device determines location information of the ACK/NACK information corresponding to the uplink data according to the scheduling information of the uplink data.
  • the scheduling information here may be information that the network side device sends uplink data in the scheduling terminal device, and the scheduling information may specifically include at least one of the following information: a Control Channel Element (CCE) for scheduling DCI occupied by the uplink data. ; physical resources occupied by the uplink data; demodulation references signal (DMRS) configuration information of the uplink data.
  • CCE Control Channel Element
  • DMRS demodulation references signal
  • the ACK/NACK information corresponding to the uplink data of the terminal device may be calculated according to the index of the first CCE occupied by the DCI that schedules the uplink data.
  • the index of the ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence may also be determined according to the index of the first physical resource block (PRB) occupied by the uplink data.
  • PRB physical resource block
  • the index of the ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence may also be determined according to the cyclic shift of the uplink DMRS and the Orthogonal Cover Code (OCC) configuration index.
  • the information indicating the index of the PRB and the cyclic shift and the OCC configuration index of the uplink DMRS may be carried in a DCI that schedules the uplink data.
  • the terminal device may determine the ACK/NACK information sequence according to the index and the number of bits of the ACK/NACK information occupied by each terminal device ACK/NACK information corresponding to the uplink data.
  • the ACK/NACK information in the ACK/NACK information sequence respectively corresponds to uplink data transmission of multiple terminal devices, and the number of bits occupied by each ACK/NACK information is 2, and the ACK corresponding to the uplink data
  • the index of the /NACK information in the ACK/NACK information sequence (length L) is N
  • the terminal uses 2 bits as one ACK/NACK information for multiple ACK/NACK information. Sorting is performed, and the Nth ACK/NACK information of the plurality of ACK/NACK information is determined as the target ACK/NACK information, and the target ACK/NACK information is used as the ACK/NACK information corresponding to the uplink data.
  • the location information is that the first bit of the ACK/NACK information corresponding to the uplink data is in all the bits included in the ACK/NACK information sequence. And determining, by the terminal device, the first bit of the ACK/NACK information corresponding to the uplink data from the ACK/NACK information sequence according to the index; the terminal device according to the number of bits of the ACK/NACK information corresponding to the uplink data, from the ACK/ Other bits of the ACK/NACK information corresponding to the uplink data are determined in the NACK information sequence.
  • the ACK/NACK information in the ACK/NACK information sequence respectively corresponds to uplink data transmission of multiple terminal devices, and the number of bits occupied by each ACK/NACK information is 2, and the ACK corresponding to the uplink data
  • the first bit of the /NACK information has an index of N in all the bits included in the ACK/NACK information sequence, and then the terminal sorts each bit in the ACK/NACK information sequence after receiving the ACK/NACK information sequence. And find the bit with the index number N, and then find the bit with the index number N+1, and finally determine the ACK/NACK information of the index number N and N+1 as the target ACK/NACK information.
  • the target ACK/NACK information is used as ACK/NACK information corresponding to the uplink data.
  • the number of bits of the ACK/NACK information corresponding to the uplink data may be determined according to the maximum number of transmission blocks supported by the terminal device in a single uplink transmission or the number of transmission blocks included in the uplink data.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is [log2(A)] (that is, the rounding of log2(A) is obtained. Integer). If the number of transmission blocks included in the uplink data is B, the number of bits of the ACK/NACK information corresponding to the uplink data is [log2(B)] (that is, an integer obtained by rounding up log2(B)).
  • the number of bits of the ACK/NACK information corresponding to the uplink data may be determined in advance, and the ACK corresponding to the uplink data may be determined in real time according to the number of transmission blocks included in the uplink data.
  • the number of bits of the /NACK information can flexibly adjust the number of bits of the ACK/NACK information, thereby improving the utilization of system resources.
  • the number of bits of the ACK/NACK information corresponding to the uplink data may be preset.
  • one bit may be used to indicate ACK/NACK information corresponding to one transport block in the uplink data, and the number of transport blocks included in the uplink data is greater than ACK/
  • one bit may be used to indicate ACK/NACK information corresponding to a plurality of transport blocks in the uplink data.
  • the foregoing first DCI may further include Hybrid Auto Repeat Request (HARQ) timing information, where the HARQ timing information is used. Indicates the HARQ retransmission timing of the uplink data.
  • the HARQ retransmission timing of the uplink data may be a transmission time unit that is different between a transmission time unit used for HARQ retransmission of the uplink data and a transmission time unit of ACK/NACK information for transmitting the uplink data.
  • the transmission time unit is a basic time domain unit for transmitting data, such as a subframe, an OFDM symbol, a radio frame, a time slot, and the like.
  • the foregoing first DCI may include retransmission timing information of all transport blocks of the uplink data, and after receiving the ACK/NACK information corresponding to the uplink data, the terminal device transmits the corresponding NACK information in the uplink data according to the HARQ timing information. The block is retransmitted.
  • the first DCI may further include only HARQ timing information of a transport block that needs to be retransmitted in the uplink data, and the terminal device retransmits the partial transport block according to the HARQ timing information.
  • the cyclic redundancy check CRC of the first DCI may be scrambled by a public Radio Network Temporary Identifier (RNTI).
  • RNTI Radio Network Temporary Identifier
  • the network side device may determine the scrambling sequence of the CRC check code according to the common RNTI, thereby scrambling the CRC check code to improve the reliability of the first DCI in the transmission process.
  • the terminal device may also determine a scrambling sequence of the CRC check code according to the common RNTI, so that after the terminal device receives the first DCI, the ACK/NACK information corresponding to the uplink data may be accurately obtained from the first DCI.
  • the public RNTI may be a Cell Radio Network Temporary Identifier (C-RNTI), or may be a TPC (Transmission Power Control)-PUSCH (Physical Uplink Shared Channel)-RNTI Such as the well-known RNTI.
  • the terminal device when the ACK/NACK information corresponding to the uplink data is NACK information, the terminal device performs HARQ retransmission on the uplink data. It should be understood that when all the transport blocks of the uplink data correspond to the NACK information, the terminal device retransmits all the transport blocks of the uplink data, and when the partial transport block of the uplink data corresponds to the NACK information, the terminal device transmits the partial transmission in the uplink data. The block is retransmitted. When the uplink data is retransmitted, the uplink data may be retransmitted according to the timing indicated by the HARQ timing information sent by the network side device.
  • the method for feeding back ACK/NACK information in the embodiment of the present invention is described in detail from the perspective of a terminal device, and the feedback ACK of the embodiment of the present invention is described from the perspective of the network side device. /NACK information method. It should be understood that the descriptions of the terminal device and the network side device correspond to each other, and thus the portions not described in detail may be referred to the embodiment shown in FIGS. 1 to 3.
  • FIG. 4 is a schematic flowchart of a method for feeding back ACK/NACK information according to an embodiment of the present invention.
  • the method of Figure 4 includes:
  • the network side device receives uplink data sent by the terminal device.
  • the network side device determines ACK/NACK information corresponding to the uplink data.
  • the network side device sends the first downlink control information DCI to the terminal device, where the first DCI includes ACK/NACK information corresponding to the uplink data.
  • the ACK/NACK information corresponding to the uplink data may be fed back to the terminal device in the entire system bandwidth or part of the bandwidth by using the DCI to carry the ACK/NACK information, and the PHICH channel in the LTE system needs to occupy the entire system bandwidth.
  • the method of feeding back ACK/NACK information is more flexible, and in the case of only a small number of terminal devices, only part of the bandwidth can be used to feed back ACK/NACK information, which can reduce the occupation of bandwidth resources, and the coding mode and modulation of DCI.
  • the method is more reliable than PHICH.
  • the first DCI includes an ACK/NACK information sequence, where the ACK/NACK information sequence is composed of multiple ACK/NACK information, and the ACK/NACK information sequence includes the uplink data. Corresponding ACK/NACK information.
  • the multiple ACK/NACK information respectively correspond to uplink data transmissions of multiple terminal devices, where the uplink data transmission of the multiple terminal devices corresponds to at least one basic parameter set, or
  • the plurality of ACK/NACK information respectively correspond to multiple uplink data transmissions of the same terminal device, wherein the multiple uplink data transmissions of the one terminal device correspond to at least one basic parameter set.
  • the DCI can be sent only on the frequency domain resource where the uplink data is located, without occupying the entire system bandwidth, which improves the flexibility of the control channel design and reduces the occupation of bandwidth resources.
  • the method further includes: the network side device sending the indication information to the terminal device, where the indication information is used to indicate location information of the ACK/NACK information corresponding to the uplink data.
  • the network side device directly indicates the location information of the ACK/NACK information corresponding to the uplink data by using the indication information, so that the terminal device can directly determine the ACK/NACK information corresponding to the uplink data according to the indication information.
  • the indication information is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the DCI of the data is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the foregoing indication information may be carried in other information sent by the network side device to the terminal device, so that the terminal device can obtain the indication information.
  • the method further includes: the network side device sending scheduling information of the uplink data to the terminal device, so that the terminal device determines the uplink data according to the scheduling information.
  • the terminal device can also indirectly determine the location information of the ACK/NACK information corresponding to the uplink data by using the scheduling information.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is determined according to the maximum number of transmission blocks supported by the terminal device in a single uplink transmission or the number of transmission blocks included in the uplink data. of.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is preset.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is greater than the number of the transmission blocks included in the uplink data, and the first type of bits of the ACK/NACK information corresponding to the uplink data is used. And indicating the ACK/NACK information corresponding to the transport block included in the uplink data, where the remaining bits of the ACK/NACK information corresponding to the uplink data except the first type of bits are fixed values or the same as the first type of bits. Value.
  • the DCI includes hybrid automatic repeat request HARQ timing information, where the HARQ timing information is used to indicate a HARQ retransmission timing of the uplink data.
  • the N terminal devices send uplink data to the network side device in the subframe n through orthogonal resources.
  • the network side device detects uplink data sent by the N terminal devices, and determines ACK/NACK information corresponding to the uplink data sent by each terminal device.
  • the number of bits of the ACK/NACK information corresponding to the uplink data sent by each terminal device is fixed to 2, and is sent by each terminal device.
  • each bit in the ACK/NACK information corresponds to one transport block of the uplink data
  • the uplink data sent by each terminal device includes only one transport block, the first of the ACK/NACK information
  • the bits correspond to the transport block of the uplink data, and the second bit of the ACK/NACK information is set to 0 by default.
  • the network side device sends a DCI including an ACK/NACK information sequence to the N terminal devices in a subframe n+k (k is an integer greater than 1, and the value of k may be 3-6, etc.), where the DCI is included in the DCI.
  • the ACK/NACK information sequence is composed of N ACK/NACK information, and the number of bits of each ACK/NACK information is 2, and the N ACK/NACK information respectively correspond to uplink data transmission of N terminal devices.
  • the N terminal devices receive the DCI.
  • the N terminal devices respectively determine ACK/NACK information corresponding to the uplink data sent by the ACK/NACK information sequence in the DCI.
  • the network side device may indicate, in advance, the index value m of the ACK/NACK information sequence of the ACK/NACK information corresponding to the uplink data sent by the terminal device by using the high layer signaling (such as RRC signaling), so that the terminal device according to the index value m
  • the ACK/NACK information corresponding to the terminal device is determined in the ACK/NACK information sequence.
  • the N terminal devices respectively perform subsequent uplink data transmission according to the corresponding ACK/NACK information.
  • the terminal device performs HARQ retransmission of uplink data on the subframe n+k+4.
  • the foregoing example 1 introduces the case where the ACK/NACK information in the ACK/NACK information sequence respectively corresponds to the uplink data of different terminal devices, and the ACK/NACK information in the ACK/NACK information sequence corresponding to the same terminal device is sent in combination with the second embodiment.
  • the case of the uplink data transmission block is described in detail.
  • the terminal device sends N uplink data transmission blocks to the network side device in n subframes.
  • the network side device detects N uplink data transmission blocks sent by the terminal device, and determines ACK/NACK information corresponding to each uplink data transmission block.
  • Each data transmission block corresponds to 1 ACK/NACK information, and each ACK/NACK information is 1 bit.
  • the network side device sends, to the terminal device, a DCI that includes an ACK/NACK information sequence, where the ACK/NACK information sequence includes N ACK/NACK information, and each ACK/NACK information occupies 1 bit, where, N ACK/NACK information Corresponding to N uplink data of the terminal device
  • the block is transported, and the N ACK/NACK information is sorted in the ACK/NACK information sequence in the order of transmission of the N uplink data transport blocks.
  • the terminal device receives the DCI.
  • the terminal device determines, according to the DCI, ACK/NACK information corresponding to each of the previously sent N uplink data transmission blocks.
  • the terminal device performs HARQ retransmission on the uplink data transmission block corresponding to the NACK information.
  • the method for feeding back ACK/NACK information in the embodiment of the present invention is described in detail above with reference to FIG. 1 to FIG. 4, and the terminal device and the network side device according to the embodiment of the present invention are described in detail below with reference to FIG. 5 to FIG. It should be understood that the terminal device and the network side device in FIG. 5 to FIG. 8 can perform the various steps performed by the terminal device and the network side device in the above, and in order to avoid repetition, details are not described herein.
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • the terminal device 500 of FIG. 5 includes:
  • the sending module 510 is configured to send uplink data to the network side device.
  • the receiving module 520 receives the first downlink control information DCI sent by the network side device, where the first DCI includes ACK/NACK information corresponding to the uplink data;
  • the determining module 530 is configured to determine ACK/NACK information corresponding to the uplink data according to the first DCI received by the receiving module 520.
  • the ACK/NACK information can be transmitted in the existing control channel resources by using the DCI to carry the ACK/NACK information, and it is not necessary to design an independent channel (PHICH) for the ACK/NACK information in the LTE system and allocate the independent. Physical resources, thereby increasing resource utilization.
  • DCI's transmission method is more reliable than PHICH.
  • the first DCI includes an ACK/NACK information sequence, where the ACK/NACK information sequence is composed of multiple ACK/NACK information, and the ACK/NACK information sequence includes the uplink data. Corresponding ACK/NACK information.
  • the multiple ACK/NACK information respectively correspond to uplink data transmissions of multiple terminal devices, or the multiple ACK/NACK information respectively correspond to multiple uplink data transmissions of the terminal device.
  • the determining module 530 is specifically configured to: determine location information of ACK/NACK information corresponding to the uplink data, and determine, in the ACK/NACK information sequence, according to the location information.
  • the ACK/NACK information corresponding to the uplink data is described.
  • the receiving module 520 is further configured to receive the network side device.
  • the determining unit 530 is configured to determine location information of the ACK/NACK information corresponding to the uplink data according to the indication information received by the receiving module.
  • the indication information is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the DCI of the data is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the determining module 530 is specifically configured to: determine, according to the scheduling information of the uplink data, location information of the ACK/NACK information corresponding to the uplink data, where the scheduling information of the uplink data is And including at least one of the following information: a control channel unit CCE occupied by the DCI for scheduling the uplink data; a physical resource occupied by the uplink data; and demodulation reference information DMRS configuration information of the uplink data.
  • the determining module 530 is specifically configured to: when the location information is an index of the ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence, according to the The index determines ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence.
  • the determining module 530 is specifically configured to: when the location information is the first bit of the ACK/NACK information corresponding to the uplink data, all included in the ACK/NACK information sequence Determining, according to the index, the first bit of the ACK/NACK information corresponding to the uplink data from the ACK/NACK information sequence according to the index; and the number of bits of the ACK/NACK information corresponding to the uplink data And determining, from the ACK/NACK information sequence, other bits of the ACK/NACK information corresponding to the uplink data.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is determined according to the maximum number of transmission blocks supported by the terminal device in a single uplink transmission or the number of transmission blocks included in the uplink data. of.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is preset.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is greater than the number of the transmission blocks included in the uplink data, and the first type of bits of the ACK/NACK information corresponding to the uplink data is used. And indicating the ACK/NACK information corresponding to the transport block included in the uplink data, where the remaining bits of the ACK/NACK information corresponding to the uplink data except the first type of bits are fixed values or the same as the first type of bits. Value.
  • the first DCI further includes hybrid automatic repeat request HARQ timing information, where the HARQ timing information is used to indicate a HARQ retransmission timing of the uplink data.
  • the cyclic redundancy check CRC of the first DCI is scrambled by a public wireless network temporary identifier RNTI.
  • FIG. 6 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • the network side device 600 of FIG. 6 includes:
  • the receiving module 610 is configured to receive uplink data sent by the terminal device.
  • a determining module 620 configured to determine ACK/NACK information corresponding to the uplink data
  • the sending module 630 is configured to send, to the terminal device, first downlink control information DCI, where the first DCI includes ACK/NACK information corresponding to the uplink data.
  • the ACK/NACK information can be transmitted in the existing control channel resources by using the DCI to carry the ACK/NACK information, and it is not necessary to design an independent channel (PHICH) for the ACK/NACK information in the LTE system and allocate the independent. Physical resources, thereby increasing resource utilization.
  • DCI's transmission method is more reliable than PHICH.
  • the first DCI includes an ACK/NACK information sequence, where the ACK/NACK information sequence is composed of multiple ACK/NACK information, and the ACK/NACK information sequence includes the uplink data. Corresponding ACK/NACK information.
  • the multiple ACK/NACK information respectively correspond to uplink data transmissions of multiple terminal devices, or the multiple ACK/NACK information respectively correspond to multiple uplink data transmissions of the terminal device.
  • the sending module 630 is further configured to: send the indication information to the terminal device, where the indication information is used to indicate location information of the ACK/NACK information corresponding to the uplink data.
  • the indication information is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the DCI of the data is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the DCI of the data is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the sending module 630 is further configured to: send the scheduling information of the uplink data to the terminal device, so that the terminal device determines, according to the scheduling information, that the uplink data is corresponding.
  • Position information of the ACK/NACK information where the scheduling information of the uplink data includes at least one of the following information: control of scheduling DCI occupation of the uplink data a channel unit CCE; a physical resource occupied by the uplink data; and demodulation reference information DMRS configuration information of the uplink data.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is determined according to the maximum number of transmission blocks supported by the terminal device in a single uplink transmission or the number of transmission blocks included in the uplink data. of.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is preset.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is greater than the number of the transmission blocks included in the uplink data, and the first type of bits of the ACK/NACK information corresponding to the uplink data is used. And indicating the ACK/NACK information corresponding to the transport block included in the uplink data, where the remaining bits of the ACK/NACK information corresponding to the uplink data except the first type of bits are fixed values or the same as the first type of bits. Value.
  • the DCI includes hybrid automatic repeat request HARQ timing information, where the HARQ timing information is used to indicate a HARQ retransmission timing of the uplink data.
  • the cyclic redundancy check CRC of the first DCI is scrambled by a public wireless network temporary identifier RNTI.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • the terminal device 700 of FIG. 7 includes:
  • a memory 710 configured to store a program
  • the transceiver 720 is configured to send uplink data to the network side device.
  • the transceiver 720 is further configured to receive the first downlink control information DCI sent by the network side device, where the first DCI includes ACK/NACK information corresponding to the uplink data;
  • a processor 730 configured to execute a program stored in the memory 710, when the program is executed, the processor 730 is configured to determine, according to the first DCI received by the receiving module 520, a corresponding to the uplink data. ACK/NACK information.
  • the ACK/NACK information can be transmitted in the existing control channel resources by using the DCI to carry the ACK/NACK information, and it is not necessary to design an independent channel (PHICH) for the ACK/NACK information in the LTE system and allocate the independent. Physical resources, thereby increasing resource utilization.
  • DCI's transmission method is more reliable than PHICH.
  • the first DCI includes an ACK/NACK information sequence, where the ACK/NACK information sequence is composed of multiple ACK/NACK information, the ACK/NACK The information sequence includes ACK/NACK information corresponding to the uplink data.
  • the multiple ACK/NACK information respectively correspond to uplink data transmissions of multiple terminal devices, or the multiple ACK/NACK information respectively correspond to multiple uplink data transmissions of the terminal device.
  • the processor 730 is specifically configured to: determine location information of ACK/NACK information corresponding to the uplink data, and determine, in the ACK/NACK information sequence, according to the location information.
  • the ACK/NACK information corresponding to the uplink data is described.
  • the transceiver 720 is further configured to receive the indication information sent by the network side device, where the processor 730 is specifically configured to determine, according to the indication information received by the receiving module, Location information of the ACK/NACK information corresponding to the uplink data.
  • the indication information is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the DCI of the data is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the processor 730 is specifically configured to: determine, according to the scheduling information of the uplink data, location information of ACK/NACK information corresponding to the uplink data, where the scheduling information of the uplink data is And including at least one of the following information: a control channel unit CCE occupied by the DCI for scheduling the uplink data; a physical resource occupied by the uplink data; and demodulation reference information DMRS configuration information of the uplink data.
  • the processor 730 is specifically configured to: when the location information is an index of the ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence, according to the The index determines ACK/NACK information corresponding to the uplink data in the ACK/NACK information sequence.
  • the processor 730 is specifically configured to: when the location information is the first bit of the ACK/NACK information corresponding to the uplink data, all included in the ACK/NACK information sequence Determining, according to the index, the first bit of the ACK/NACK information corresponding to the uplink data from the ACK/NACK information sequence according to the index; and the number of bits of the ACK/NACK information corresponding to the uplink data And determining, from the ACK/NACK information sequence, other bits of the ACK/NACK information corresponding to the uplink data.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is determined according to the maximum number of transmission blocks supported by the terminal device in a single uplink transmission or the number of transmission blocks included in the uplink data. of.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is preset.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is greater than the number of the transmission blocks included in the uplink data, and the first type of bits of the ACK/NACK information corresponding to the uplink data is used. And indicating the ACK/NACK information corresponding to the transport block included in the uplink data, where the remaining bits of the ACK/NACK information corresponding to the uplink data except the first type of bits are fixed values or the same as the first type of bits. Value.
  • the first DCI further includes hybrid automatic repeat request HARQ timing information, where the HARQ timing information is used to indicate a HARQ retransmission timing of the uplink data.
  • the cyclic redundancy check CRC of the first DCI is scrambled by a public wireless network temporary identifier RNTI.
  • FIG. 8 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • the terminal device 800 of FIG. 8 includes:
  • a memory 810 configured to store a program
  • the transceiver 820 is configured to receive uplink data sent by the terminal device.
  • the processor 830 is configured to execute a program stored in the memory 810, where the processor 830 is configured to determine ACK/NACK information corresponding to the uplink data, when the program is executed;
  • the transceiver 820 is further configured to send, to the terminal device, first downlink control information DCI, where the first DCI includes ACK/NACK information corresponding to the uplink data.
  • the ACK/NACK information can be transmitted in the existing control channel resources by using the DCI to carry the ACK/NACK information, and it is not necessary to design an independent channel (PHICH) for the ACK/NACK information in the LTE system and allocate the independent. Physical resources, thereby increasing resource utilization.
  • DCI's transmission method is more reliable than PHICH.
  • the first DCI includes an ACK/NACK information sequence, where the ACK/NACK information sequence is composed of multiple ACK/NACK information, and the ACK/NACK information sequence includes the uplink data. Corresponding ACK/NACK information.
  • the multiple ACK/NACK information respectively correspond to uplink data transmissions of multiple terminal devices, or the multiple ACK/NACK information respectively correspond to multiple uplink data transmissions of the terminal device.
  • the transceiver 820 is further configured to: send the terminal device And sending the indication information, where the indication information is used to indicate location information of the ACK/NACK information corresponding to the uplink data.
  • the indication information is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the DCI of the data is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the DCI of the data is carried in an RRC signaling or a second DCI that is sent by the network side device to the terminal device, where the second DCI is used to schedule the uplink.
  • the transceiver 820 is further configured to: send scheduling information of the uplink data to the terminal device, so that the terminal device determines, according to the scheduling information, the uplink data corresponding to The location information of the ACK/NACK information, where the scheduling information of the uplink data includes at least one of the following information: a control channel unit CCE occupied by the DCI that schedules the uplink data; a physical resource occupied by the uplink data; Demodulation reference information DMRS configuration information of the uplink data.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is determined according to the maximum number of transmission blocks supported by the terminal device in a single uplink transmission or the number of transmission blocks included in the uplink data. of.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is preset.
  • the number of bits of the ACK/NACK information corresponding to the uplink data is greater than the number of the transmission blocks included in the uplink data, and the first type of bits of the ACK/NACK information corresponding to the uplink data is used. And indicating the ACK/NACK information corresponding to the transport block included in the uplink data, where the remaining bits of the ACK/NACK information corresponding to the uplink data except the first type of bits are fixed values or the same as the first type of bits. Value.
  • the DCI includes hybrid automatic repeat request HARQ timing information, where the HARQ timing information is used to indicate a HARQ retransmission timing of the uplink data.
  • the cyclic redundancy check CRC of the first DCI is scrambled by a public wireless network temporary identifier RNTI.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • 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 or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. 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 invention 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 functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • 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. .

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Abstract

本发明实施例提供一种反馈ACK/NACK信息的方法，终端设备和网络侧设备。该方法包括：终端设备向网络侧设备发送上行数据；终端设备接收网络侧设备发送的第一下行控制信息DCI，其中，第一DCI包含与上行数据对应的ACK/NACK信息；终端设备根据第一DCI确定与上行数据对应的ACK/NACK信息。本发明实施例中，通过DCI来承载ACK/NACK信息，提高了资源利用率。

Description

反馈ACK/NACK信息的方法、终端设备和网络侧设备 技术领域
本发明涉及无线通信领域，尤其涉及一种反馈ACK/NACK信息的方法、终端设备和网络侧设备。
背景技术
在长期演进(Long Term Evolution，LTE)***中，基站可以将终端设备传输的上行数据对应的确认(Acknowledge，ACK)/非确认(Not Acknowledge，NACK)信息通过物理混合自动重传指示信道(Physical Hybrid ARQ Indicator Channel，PHICH)传输给终端设备，终端设备在对应的PHICH资源上检测ACK/NACK信息。通过PHICH反馈ACK/NACK信息时需要占用整个***的带宽，占用的带宽资源较多，灵活性较差。
发明内容
本申请提供一种反馈ACK/NACK信息的方法，终端设备和网络侧设备，以更灵活地向终端设备反馈ACK/NACK信息。
第一方面，提供一种反馈ACK/NACK信息的方法，包括：终端设备向网络侧设备发送上行数据；所述终端设备接收所述网络侧设备发送的第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息；所述终端设备根据所述第一DCI确定与所述上行数据对应的ACK/NACK信息。
通过DCI来承载ACK/NACK信息可以在已有的控制信道资源中传输ACK/NACK信息，不需要像LTE***中为ACK/NACK信息设计独立的信道(PHICH)并分配独立的物理资源，从而提高了资源利用率。另外，DCI的传输方式与PHICH相比，可靠性更高。
结合第一方面，在第一方面的某些实现方式中，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
结合第一方面，在第一方面的某些实现方式中，所述多个ACK/NACK 信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
结合第一方面，在第一方面的某些实现方式中，所述终端设备根据所述第一DCI确定与所述上行数据对应的ACK/NACK信息，包括：所述终端设备确定所述上行数据对应的ACK/NACK信息的位置信息；所述终端设备根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
上述位置信息可以指示上行数据对应的ACK/NACK信息在ACK/NACK信息序列中的位置。
结合第一方面，在第一方面的某些实现方式中，所述终端设备确定所述上行数据对应的ACK/NACK信息的位置信息，包括：所述终端设备接收所述网络侧设备发送的指示信息；所述终端设备根据所述指示信息，确定所述上行数据对应的ACK/NACK信息的位置信息。
上述位置信息可以直接来指示ACK/NACK信息的位置，使得终端设备能够根据该位置信息直接在ACK/NACK信息序列中确定上行数据对应的ACK/NACK信息。
结合第一方面，在第一方面的某些实现方式中，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。
上述指示信息可以承载在其它由网络侧设备发送给终端设备的信息中，便于终端设备获取上行数据对应的ACK/NACK信息的位置信息。
结合第一方面，在第一方面的某些实现方式中，所述终端设备确定所述上行数据对应的ACK/NACK信息的位置信息，包括：所述终端设备根据所述上行数据的调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：调度所述上行数据的DCI占用的控制信道单元CCE；所述上行数据占用的物理资源；所述上行数据的解调参考信息DMRS配置信息。
终端设备通过调度信息也能间接的确定上行数据对应的ACK/NACK信息的位置信息。
结合第一方面，在第一方面的某些实现方式中，所述终端设备根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的 ACK/NACK信息，包括：当所述位置信息为所述上行数据对应的ACK/NACK信息在所述ACK/NACK信息序列中的索引时，所述终端设备根据所述索引，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
结合第一方面，在第一方面的某些实现方式中，所述终端设备根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息，包括：当所述位置信息为所述上行数据对应的ACK/NACK信息的第一个比特在所述ACK/NACK信息序列包含的所有比特中的索引时，所述终端设备根据所述索引从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的第一个比特；所述终端设备根据所述上行数据对应的ACK/NACK信息的比特数，从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的其它比特。
结合第一方面，在第一方面的某些实现方式中，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
结合第一方面，在第一方面的某些实现方式中，所述上行数据对应的ACK/NACK信息的比特数是预设的。
结合第一方面，在第一方面的某些实现方式中，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
结合第一方面，在第一方面的某些实现方式中，所述第一DCI还包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
结合第一方面，在第一方面的某些实现方式中，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
第二方面，提供一种反馈ACK/NACK信息的方法，包括：网络侧设备接收终端设备发送的上行数据；所述网络侧设备确定与所述上行数据对应的ACK/NACK信息；所述网络侧设备向所述终端设备发送第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息。
通过DCI来承载ACK/NACK信息可以在已有的控制信道资源中传输 ACK/NACK信息，不需要像LTE***中为ACK/NACK信息设计独立的信道(PHICH)并分配独立的物理资源，从而提高了资源利用率。另外，DCI的传输方式与PHICH相比，可靠性更高。
结合第二方面，在第二方面的某些实现方式中，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
结合第二方面，在第二方面的某些实现方式中，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
当上述多个终端设备的上行数据传输对应多个基础参数集，或者，一个终端设备的多次上行数据传输对应多个基础参数集时，这时对于采用不同基础参数集且进行频分复用的上行数据来说，可以只在上行数据所在的频域资源上发送DCI，而不需要占用整个***带宽，提高了控制信道设计的灵活性，减少了对带宽资源的占用。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络侧设备向所述终端设备发送指示信息，所述指示信息用于指示所述上行数据对应的ACK/NACK信息的位置信息。
网络侧设备通过指示信息来直接指示上行数据对应的ACK/NACK信息的位置信息，使得终端设备能够直接根据指示信息确定上行数据对应的ACK/NACK信息。
结合第二方面，在第二方面的某些实现方式中，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。。
上述指示信息可以承载在其它由网络侧设备发送给终端设备的信息中，便于终端设备获取上行数据对应的ACK/NACK信息的位置信息。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络侧设备向所述终端设备发送所述上行数据的调度信息，以便于所述终端设备根据所述调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：调度所述上行数据的DCI占用的控制信道单元CCE；所述上行数据占用的物理资源； 所述上行数据的解调参考信息DMRS配置信息。
终端设备通过调度信息也能间接的确定上行数据对应的ACK/NACK信息在所述ACK/NACK信息序列中的位置。
结合第二方面，在第二方面的某些实现方式中，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
结合第二方面，在第二方面的某些实现方式中，所述上行数据对应的ACK/NACK信息的比特数是预设的。
结合第二方面，在第二方面的某些实现方式中，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
结合第二方面，在第二方面的某些实现方式中，所述DCI包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
结合第二方面，在第二方面的某些实现方式中，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
在某些实现方式中，所述上行数据为所述终端设备多次发送的上行数据，所述上行数据对应的ACK/NACK信息的每个比特对应所述终端设备的至少一次上行数据或者至少一个传输块。
也就是说，上行数据对应的ACK/NACK信息的一个比特可以对应终端设备的一次上行数据或者一个传输块，上行数据对应的ACK/NACK信息的一个比特也可以对应终端设备的多次上行数据或者多个传输块。
在某些实现方式中，所述多个ACK/NACK信息中的任意一个ACK/NACK信息对应一个终端设备的上行数据传输。也就是说，一个ACK/NACK信息最多只能对应一个终端设备的上行数据传输，而一个终端设备的上行数据传输可以对应一个或者多个ACK/NACK信息。
在某些实现方式中，所述方法还包括：所述网络侧设备根据所述终端设备的***参数确定所述第一DCI的循环冗余码校验CRC校验码的加扰序列。这里的***参数可以是小区无线网络临时标识(Cell Radio Network  Temporary Identifier，C-RNTI)等用户专属参数，也可以是TPC-PUSCH-RNTI等终端公知的RNTI，也可以是新定义的其他终端公知的RNTI。第一DCI的CRC校验码以及该CRC校验码的加扰序列能够使得终端设备能够准确地从第一DCI中获取上行数据对应的ACK/NACK信息。
在某些实现方式中，终端设备可以根据自身的***参数确定所述第一DCI的CRC校验码的加扰序列，从而能够从第一DCI中准确地获取上行数据对应的ACK/NACK信息。
在某些实现方式中，当所述上行数据对应的是NACK信息时，所述方法还包括：所述终端设备对所述上行数据进行HARQ重传。
在某些实现方式中，当所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输时，所述多个终端设备分别对应至少两个基础参数集。
在某些实现方式中，当所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输时，所述终端设备的多次数据传输对应至少两个基础参数集。
第三方面，提供一种终端设备，所述终端设备包括用于执行第一方面中的方法的模块。
第四方面，提供一种网络侧设备，所述网络侧设备包括用于执行第二方面中的方法的模块。
第五方面，提供一种终端设备，包括存储器、收发器和处理器，所述存储器存储程序，所述处理器用于执行程序，当所述程序被执行时，所述处理器基于所述收发器执行所述第一方面中的方法。
第六方面，提供一种网络侧设备，包括存储器、收发器和处理器，所述存储器存储程序，所述处理器用于执行程序，当所述程序被执行时，所述处理器基于所述收发器执行所述第二方面中的方法。
第七方面，提供一种计算机可读介质，所述计算机可读介质存储用于终端设备执行的程序代码，所述程序代码包括用于执行第一方面中的方法的指令。
第八方面，提供一种计算机可读介质，所述计算机可读介质存储用于网络侧设备执行的程序代码，所述程序代码包括用于执行第二方面中的方法的指令。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例的反馈ACK/NACK信息的方法的示意性流程图。
图2是本发明实施例的反馈ACK/NACK信息的方法的示意图。
图3是本发明实施例的反馈ACK/NACK信息的方法的示意图。
图4是本发明实施例的反馈ACK/NACK信息的方法的示意性流程图。
图5是本发明实施例的终端设备的示意性结构图。
图6是本发明实施例的网络侧设备的示意性结构图。
图7是本发明实施例的终端设备的示意性结构图。
图8是本发明实施例的网络侧设备的示意性结构图。
具体实施方式
应理解，本发明实施例的技术方案可以应用于各种通信***，例如：全球移动通讯(Global System of Mobile communication，GSM)***、码分多址(Code Division Multiple Access，CDMA)***、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)***、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)***、通用移动通信***(Universal Mobile Telecommunication System，UMTS)等目前的通信***，尤其可以应用于未来的第五代移动通信技术(5G)***。
本发明实施例中的终端设备也可以指用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本发明实施例并不限定。
本发明实施例中的网络侧设备可以是用于与终端设备通信的设备，该网络侧设备可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA***中的基站(NodeB，NB)，还可以是LTE***中的演进型基站(Evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该网络侧设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络侧设备或者未来演进的PLMN网络中的网络侧设备等，本发明实施例并不限定。
图1是本发明实施例的反馈ACK/NACK信息的方法的示意性流程图。图1的方法包括：
110、终端设备向网络侧设备发送上行数据。
终端设备在向网络侧设备发送上行数据后，网络侧设备会检测终端设备发送的上行数据，以确定该上行数据对应的ACK/NACK信息。
120、终端设备接收网络侧设备发送的第一下行控制信息(Downlink Control Information，DCI)，其中，第一DCI包含与上行数据对应的ACK/NACK信息。
本发明实施例提供的方法，通过DCI来承载ACK/NACK信息，而DCI既可以在整个***带宽上传输，也可以在部分带宽资源上进行传输，可以实现灵活地反馈ACK/NACK信息。
本发明实施例可以应用于以下场景：在第五代移动通信技术(5G)中，用户设备(User Equipment，UE)可以在一个载波内支持多种不同类型的基础参数集(numerology)，并且不同的基础参数集的数据传输可以进行频分复用(Frequency Division Multiplex，FDM)，也就是说整个***带宽可以分割成多个区域，每个区域对应一个基础参数集，不同基础参数集对应的资源区域上各自进行上行数据的传输。针对这种场景，通过DCI来承载ACK/NACK信息，而DCI既可以在整个***带宽上传输，也可以在部分带宽资源上进行传输，可以实现灵活地反馈ACK/NACK信息。
应理解，本发明实施例的ACK/NACK信息是针对反馈网络侧设备是否正确检测到终端设备发送的上行数据的信息，ACK/NACK信息具体可以是ACK信息或者NACK信息，ACK信息表示网络侧设备正确检测到了终端设备发送的上行数据，NACK信息表示网络侧设备没有正确检测到终端设备发 送的上行数据，终端设备需要向网络侧设备重新发送上行数据。
当网络侧设备正确检测到终端设备发送的上行数据时，该上行数据对应的是ACK信息，此时，第一DCI中包含的是该上行数据对应的ACK信息。
当网络侧设备没有正确检测到终端设备发送的上行数据时，该上行数据对应是NACK信息，此时，第一DCI中包含的是该上行数据对应的NACK信息，这种情况下，网络侧设备可以提示终端设备重新发送该上行数据。
具体地，当上述上行数据包含多个传输块(该多个传输块可以是一次发送的，也可以是多次发送的)时，网络侧设备会检测终端设备发送的各个传输块，此时上行数据对应的ACK/NACK信息可以包含多个比特，每个比特用于指示网络侧设备对各个传输块的接收情况，终端设备在接收到该ACK/NACK信息后，确定各个传输块对应的是ACK还是NACK，如果上行数据中的某个传输块对应的NACK，那么就对该传输块进行重传。
应理解，上述第一DCI可以只包含与该终端设备发送的上行数据对应的ACK/NACK信息，也可以包含由多个ACK/NACK信息组成的ACK/NACK信息序列，并且该ACK/NACK信息序列包含与上述上行数据对应的ACK/NACK信息。
130、终端设备根据第一DCI确定与上行数据对应的ACK/NACK信息。
本发明实施例中，通过DCI来承载ACK/NACK信息可以在已有的控制信道资源中传输ACK/NACK信息，不需要像LTE***中为ACK/NACK信息设计独立的信道(PHICH)并分配独立的物理资源，从而提高了资源利用率。另外，DCI的传输方式与PHICH相比，可靠性更高。
可选地，作为一个实施例，上述ACK/NACK信息序列中的多个ACK/NACK信息可以分别对应多个终端设备的上行数据传输，或者，上述多个ACK/NACK信息也可以分别对应所述终端设备的多次上行数据传输。应理解，上述多个终端设备可以对应至少一个基础参数集，或者，所述终端设备的多次上行数据传输可以对应至少一个基础参数集。
当上述多个终端设备的上行数据传输对应多个基础参数集，或者，一个终端设备的多次上行数据传输对应多个基础参数集时，这时对于采用不同基础参数集且进行频分复用的上行数据来说，可以只在上行数据所在的频域资源上发送DCI，而不需要占用整个***带宽，提高了控制信道设计的灵活性，减少了对带宽资源的占用。
当ACK/NACK信息序列中的多个ACK/NACK信息分别对应多个终端设备的上行数据传输时，每个终端设备分别对应ACK/NACK信息序列中的一个ACK/NACK信息。
当ACK/NACK信息序列中的多个ACK/NACK信息分别对应同一终端设备的多次上行数据传输时，一个终端设备占用ACK/NACK信息序列的所有ACK/NACK信息，不同的ACK/NACK信息用于终端设备的不同次上行数据传输的ACK/NACK反馈。例如，ACK/NACK信息序列的长度为N，每个ACK/NACK信息为1比特，则该ACK/NACK信息序列包含终端设备之前N次上行数据传输对应的ACK/NACK信息。
通过第一DCI中的ACK/NACK信息序列能够携带与多个终端设备上行数据对应的ACK/NACK信息，或者与一个终端设备的多次上行数据对应的ACK/NACK信息，能够向不同的终端设备反馈各自的ACK/NACK信息或者向同一终端设备反馈不同上行数据的ACK/NACK信息，提高了资源的利用率，减少了一些不必要的信令开销。
应理解，上述多个ACK/NACK信息中的任意一个ACK/NACK信息可以只对应一个终端设备的上行数据传输，也就是说，一个ACK/NACK信息最多只能对应一个终端设备的上行数据传输，而一个终端设备的上行数据传输可以对应一个或者多个ACK/NACK信息。
所述第一DCI可以是专门用于传输ACK/NACK信息的DCI，此时第一DCI中只包含ACK/NACK信息或者ACK/NACK信息序列。另外，所述第一DCI也可以是用于其他用途的DCI，比如用于调度数据传输的DCI或者用于功率控制的DCI，此时ACK/NACK信息可以携带在第一DCI中，与其他控制信息一起传输。
应理解，当上述上行数据是终端设备一次发送的上行数据时，上述上行数据对应的ACK/NACK信息可以用ACK/NACK信息中的一个比特对应上述上行数据，将剩余的比特置为固定值。或者该ACK/NACK信息中的每个比特都与该上述数据对应，这时ACK/NACK信息中每个比特的取值都相同，都用来表示上行数据的ACK/NACK反馈。当上述上行数据包含多个传输块时，上述上行数据对应的ACK/NACK信息可以用ACK/NACK信息中的一个比特对应该上行数据的一个传输块或者多个传输块。例如，当上行数据包含2个传输块，上行数据对应的ACK/NACK信息一共为2个比特，那么该 ACK/NACK信息的1的比特一个传输块，也可以对应两个传输块。
当上述上行数据是终端设备多次发送的上行数据时，上述上行数据对应的ACK/NACK信息的一个比特可以对应终端设备的一次发送的上行数据，也可以对应终端设备的多次发送的上行数据。
当ACK/NACK信息的一个比特对应终端设备多次上行数据或者对应上行数据的多个传输块时，可以将多次上行数据或者上行数据的多个传输块对应的ACK/NACK信息进行与运算，然后用一个比特位来表示运算的结果，当该比特位表示的信息为ACK信息时表示多次上行数据或者上行数据的多个传输块被网络侧设备接收，当该比特位表示的信息为NACK信息时，表示多次上行数据中的至少一次上行数据或者上行数据的至少一个传输块没有被网络侧设备接收，此时，终端设备需要重新向网络侧设备发送该多次上行数据或者上行数据的多个传输块。
可选地，作为一个实施例，终端设备根据第一DCI确定与上行数据对应的ACK/NACK信息包括：终端设备确定与上行数据对应的ACK/NACK信息的位置信息；终端设备根据上述位置信息确定该上行数据对应的ACK/NACK信息。
可选地，终端设备可以采用以下几种方法确定与上行数据对应的ACK/NACK信息的位置信息。
方法1：
终端设备根据网络侧设备发送的指示信息来直接确定上述上行数据对应的ACK/NACK信息的位置信息。其中，该指示信息可以是网络侧设备在发送第一DCI之前或者在发送第一DCI的同时发送的，另外，该指示信息可以直接指示上行数据对应的ACK/NACK信息的位置信息(例如，当ACK/NACK信息序列共包含8个ACK/NACK信息时，该指示信息共有3个比特，用于指示上述上行数据对应的ACK/NACK信息为该ACK/NACK信息序列中的第三个ACK/NACK信息)，终端设备在接收到该指示信息直接可以确定对应的ACK/NACK信息的位置信息。
上述指示信息可以承载在网络侧设备发送给终端设备的RRC信令或者第二DCI中，其中，该第二DCI可以是网络侧设备调度终端设备发送上述上行数据的DCI。
方法2：
终端设备根据上述上行数据的调度信息确定上述上行数据对应的ACK/NACK信息的位置信息。这里的调度信息可以是网络侧设备在调度终端设备发送上行数据的信息，该调度信息具体可以包含下列信息中的至少一种：调度上行数据的DCI占用的控制信道单元(Control Channel Element，CCE)；上行数据占用的物理资源；上行数据的解调参考信息(Demodulation references signal，DMRS)配置信息。
在根据上行数据的调度信息确定上行数据对应的ACK/NACK信息的位置信息时，可以根据调度上行数据的DCI占用的第一个CCE的索引，计算终端设备的上行数据对应的ACK/NACK信息在ACK/NACK信息序列中的索引。也可以根据上行数据占用的第一个物理资源块(Physical Resource Block，PRB)的索引来确定上行数据对应的ACK/NACK信息在ACK/NACK信息序列中的索引。还可以根据上行DMRS的循环移位和正交覆盖码(Orthogonal Cover Code，OCC)配置索引，确定上行数据对应的ACK/NACK信息在ACK/NACK信息序列中的索引。其中，用于指示所述PRB的索引和所述上行DMRS的循环移位和OCC配置索引的信息可以携带在调度所述上行数据的DCI中。
可选地，作为一个实施例，当上述位置信息为上行数据对应的ACK/NACK信息在ACK/NACK信息序列中的索引时(也就是上述位置信息指示了上行数据对应的ACK/NACK信息是ACK/NACK信息序列中的多个ACK/NACK信息中的第几个)，终端设备可以根据该索引以及每个终端设备占用的ACK/NACK信息的比特数，从该ACK/NACK信息序列中确定该上行数据对应的ACK/NACK信息。
具体而言，如图2所示，ACK/NACK信息序列中的ACK/NACK信息分别对应多个终端设备的上行数据传输，每个ACK/NACK信息占用的比特数为2，上行数据对应的ACK/NACK信息在ACK/NACK信息序列(长度为L)中的索引为N，那么终端在接收到ACK/NACK信息序列后，以2个比特为一个ACK/NACK信息，对多个ACK/NACK信息进行排序，将多个ACK/NACK信息中的第N个ACK/NACK信息确定为目标ACK/NACK信息，并将目标ACK/NACK信息作为上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，当上述位置信息为上行数据对应的ACK/NACK信息的第一个比特在ACK/NACK信息序列包含的所有比特中 的索引时，终端设备可以根据该索引从ACK/NACK信息序列中确定上行数据对应的ACK/NACK信息的第一个比特；终端设备根据上行数据对应的ACK/NACK信息的比特数，从ACK/NACK信息序列中确定上行数据对应的ACK/NACK信息的其它比特。
具体而言，如图3所示，ACK/NACK信息序列中的ACK/NACK信息分别对应多个终端设备的上行数据传输，每个ACK/NACK信息占用的比特数为2，上行数据对应的ACK/NACK信息的第一个比特在ACK/NACK信息序列包含的所有比特中的索引为N，那么终端在接收到ACK/NACK信息序列后，对ACK/NACK信息序列中的每个比特进行排序，并从中寻找到索引号为N的比特，接下来，再寻找到索引号为N+1的比特，最后将索引号为N和N+1的比特的ACK/NACK信息确定为目标ACK/NACK信息，并将目标ACK/NACK信息作为上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，上述上行数据对应的ACK/NACK信息的比特数可以根据终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数来确定。
具体地，如果终端设备单次上行传输所支持的最大传输块数为A，那么上行数据对应的ACK/NACK信息的比特数为[log2(A)](也就是对log2(A)取整得到的整数)。如果上行数据包含的传输块数为B，那么上行数据对应的ACK/NACK信息的比特数为[log2(B)](也就是对log2(B)取整得到的整数)。应理解，根据终端设备单次上行传输所支持的最大传输块数可以预先确定上行数据对应的ACK/NACK信息的比特数，而根据上行数据包含的传输块数可以实时地确定上行数据对应的ACK/NACK信息的比特数，能够灵活地调整ACK/NACK信息的比特数，提高***资源的利用率。
可选地，作为一个实施例，上述上行数据对应的ACK/NACK信息的比特数可以是预设的。
当上行数据包含的传输块的数目小于等于ACK/NACK信息的比特数时可以用一个比特表示上行数据中的一个传输块对应的ACK/NACK信息，当上行数据包含的传输块的数目大于ACK/NACK信息的比特数时，可以用一个比特表示上行数据中的多个传输块对应的ACK/NACK信息。
可选地，作为一个实施例，上述第一DCI还可以包含混合自动重传请求(Hybrid Auto Repeat Request，HARQ)时序信息，该HARQ时序信息用于 指示上行数据的HARQ重传时序。其中，所述上行数据的HARQ重传时序可以是所述上行数据的HARQ重传所用的传输时间单元与传输所述上行数据的ACK/NACK信息的传输时间单元之间相差的传输时间单元数。这里，传输时间单元是用于传输数据的基本时域单位，比如子帧、OFDM符号、无线帧、时隙等。
应理解，上述第一DCI可以包含上行数据的所有传输块的重传时序信息，终端设备在接收到上行数据对应的ACK/NACK信息后，根据该HARQ时序信息对上行数据中对应NACK信息的传输块进行重传。另外，上述第一DCI还可以只包含上行数据中部分需要重传的传输块的HARQ时序信息，这时终端设备根据该HARQ时序信息对该部分传输块进行重传。
可选地，作为一个实施例，所述第一DCI的循环冗余码校验CRC校验码可以通过公共的无线网络临时标识(Radio Network Temporary Identifier，RNTI)进行加扰。具体来说，网络侧设备可以根据公共的RNTI确定CRC校验码的加扰序列，从而对CRC校验码进行加扰，以提高第一DCI在传输过程中的可靠性。终端设备也可以根据公共的RNTI确定CRC校验码的加扰序列，这样当终端设备接收到第一DCI之后，可以从第一DCI中准确地获取上行数据对应的ACK/NACK信息。公共的RNTI可以是小区无线网络临时标识(Cell Radio Network Temporary Identifier，C-RNTI)，也可以是TPC(Transmission Power Control，传输功率控制)-PUSCH(Physical Uplink Shared Channel，物理上行共享信道)-RNTI等公知的RNTI。
可选地，作为一个实施例，当上述上行数据对应的ACK/NACK信息为NACK信息时，终端设备对该上行数据进行HARQ重传。应理解，当上行数据的全部传输块均对应NACK信息时，终端设备对上行数据的全部传输块进行重传，当上行数据的部分传输块对应NACK信息时，终端设备对上行数据中的部分传输块进行重传。在对上行数据进行重传时可以根据网络侧设备发送的HARQ时序信息指示的时序对上行数据进行重传。
上文结合图1至图3，从终端设备的角度详细描述了本发明实施例的反馈ACK/NACK信息的方法，下文结合图4，从网络侧设备的角度来描述本发明实施例的反馈ACK/NACK信息的方法。应理解，终端设备与网络侧设备的描述相互对应，因此未详细描述的部分可以参见图1至图3所示的实施例。
图4是本发明实施例的反馈ACK/NACK信息的方法的示意性流程图。图4的方法包括：
210、网络侧设备接收终端设备发送的上行数据；
220、所述网络侧设备确定与所述上行数据对应的ACK/NACK信息；
230、所述网络侧设备向所述终端设备发送第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息。
本发明实施例中，通过DCI来承载ACK/NACK信息可以在整个***带宽或者部分带宽上向终端设备反馈上行数据对应的ACK/NACK信息，与LTE***中的PHICH信道需要在占用整个***带宽来反馈ACK/NACK信息的方式相比更加灵活，并且在只有少量终端设备的情况下，可以只占用部分带宽来反馈ACK/NACK信息，能够减少对带宽资源的占用，另外，DCI的编码方式和调制方式与PHICH相比，可靠性更高。
可选地，作为一个实施例，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，其中，所述多个终端设备的上行数据传输对应至少一个基础参数集，或者，所述多个ACK/NACK信息分别对应同一终端设备的多次上行数据传输，其中，所述一个终端设备的的多次上行数据传输对应至少一个基础参数集。
当上述多个终端设备的上行数据传输对应多个基础参数集，或者，一个终端设备的多次上行数据传输对应多个基础参数集时，这时对于采用不同基础参数集且进行频分复用的上行数据来说，可以只在上行数据所在的频域资源上发送DCI，而不需要占用整个***带宽，提高了控制信道设计的灵活性，减少了对带宽资源的占用。
可选地，作为一个实施例，所述方法还包括：所述网络侧设备向所述终端设备发送指示信息，所述指示信息用于指示所述上行数据对应的ACK/NACK信息的位置信息。
网络侧设备通过指示信息来直接指示上行数据对应的ACK/NACK信息的位置信息，使得终端设备能够直接根据指示信息确定上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。
上述指示信息可以承载在其它由网络侧设备发送给终端设备的信息中，便于终端设备获取该指示信息。
可选地，作为一个实施例，所述方法还包括：所述网络侧设备向所述终端设备发送所述上行数据的调度信息，以便于所述终端设备根据所述调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：调度所述上行数据的DCI占用的CCE；所述上行数据占用的物理资源；所述上行数据的DMRS配置信息。
终端设备通过调度信息也能间接的确定上行数据对应的ACK/NACK信息的位置信息。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是预设的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
可选地，作为一个实施例，所述DCI包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
下面结合具体的实例对本发明实施例的反馈ACK/NACK信息的方法进行详细的介绍：
实例一：
301、N个终端设备通过正交资源在子帧n向网络侧设备发送上行数据。
302、网络侧设备检测N个终端设备发送的上行数据，确定每个终端设备发送的上行数据对应的ACK/NACK信息。其中，每个终端设备发送的上行数据对应的ACK/NACK信息的比特数固定为2，当每个终端设备发送的 上行数据包括两个传输块时，ACK/NACK信息中的每个比特对应上行数据的一个传输块，而当每个终端设备发送的上行数据只包含一个传输块时，ACK/NACK信息的第一个比特对应上行数据的传输块，ACK/NACK信息的第二个比特缺省设置为0。
303、网络侧设备在子帧n+k(k为大于1的整数，k的取值可以为3-6等)向N个终端设备发送包含ACK/NACK信息序列的DCI，其中，该DCI中的ACK/NACK信息序列中的由N个ACK/NACK信息组成，每个ACK/NACK信息的比特数为2，N个ACK/NACK信息的分别对应N个终端设备的上行数据传输。
304、N个终端设备接收DCI。
305、N个终端设备分别从DCI中的ACK/NACK信息序列中，确定与自身发送的上行数据对应的ACK/NACK信息。其中，网络侧设备可以预先通过高层信令(如RRC信令)指示终端设备发送的上行数据对应的ACK/NACK信息的在ACK/NACK信息序列中的索引值m，使得终端设备根据索引值m在ACK/NACK信息序列中确定该终端设备对应的ACK/NACK信息。
306、N个终端设备分别根据各自对应的ACK/NACK信息进行后续上行数据的传输。当某个终端设备接收到的ACK/NACK信息为NACK信息时，该终端设备在子帧n+k+4上进行上行数据的HARQ重传。
上述实例一介绍了ACK/NACK信息序列中的ACK/NACK信息分别对应不同终端设备的上行数据的情况，下面结合实例二对ACK/NACK信息序列中的ACK/NACK信息对应同一终端设备发送的多个上行数据传输块的情况进行详细的介绍。
实例二：
401、终端设备分别在n个子帧向网络侧设备发送N个上行数据传输块。
402、网络侧设备检测该终端设备发送的N个上行数据传输块，确定各个上行数据传输块对应的ACK/NACK信息。其中，每个数据传输块对应1个ACK/NACK信息，每个ACK/NACK信息为1比特。
403、网络侧设备向终端设备发送包含ACK/NACK信息序列的DCI，该ACK/NACK信息序列包含N个ACK/NACK信息，每个ACK/NACK信息占用1比特，其中，N个ACK/NACK信息分别对应终端设备的N个上行数据 传输块，并且按照N个上行数据传输块的传输顺序在ACK/NACK信息序列中对N个ACK/NACK信息进行排序。
404、终端设备接收DCI。
405、终端设备从该DCI中确定之前发送的N个上行数据传输块各自对应的ACK/NACK信息。
406、终端设备对NACK信息对应的上行数据传输块进行HARQ重传。
上文结合图1至图4详细的描述了本发明实施例的反馈ACK/NACK信息的方法，下面结合图5至图8，详细描述本发明实施例的终端设备和网络侧设备。应理解，图5至图8中的终端设备和网络侧设备能够执行上文中由终端设备和网络侧设备执行的各个步骤，为了避免重复，此处不再详述。
图5是本发明实施例的终端设备的示意性结构图。图5的终端设备500包括：
发送模块510，用于向网络侧设备发送上行数据；
接收模块520，接收所述网络侧设备发送的第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息；
确定模块530，用于根据所述接收模块520接收的第一DCI确定与所述上行数据对应的ACK/NACK信息。
本发明实施例中，通过DCI来承载ACK/NACK信息可以在已有的控制信道资源中传输ACK/NACK信息，不需要像LTE***中为ACK/NACK信息设计独立的信道(PHICH)并分配独立的物理资源，从而提高了资源利用率。另外，DCI的传输方式与PHICH相比，可靠性更高。
可选地，作为一个实施例，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
可选地，作为一个实施例，所述确定模块530具体用于：确定所述上行数据对应的ACK/NACK信息的位置信息；根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述接收模块520还用于接收所述网络侧设 备发送的指示信息；所述确定模块530具体用于根据所述接收模块接收到的所述指示信息，确定所述上行数据对应的ACK/NACK信息的位置信息。
可选地，作为一个实施例，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。
可选地，作为一个实施例，所述确定模块530具体用于：根据所述上行数据的调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：调度所述上行数据的DCI占用的控制信道单元CCE；所述上行数据占用的物理资源；所述上行数据的解调参考信息DMRS配置信息。
可选地，作为一个实施例，所述确定模块530具体用于：当所述位置信息为所述上行数据对应的ACK/NACK信息在所述ACK/NACK信息序列中的索引时，根据所述索引在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述确定模块530具体用于：当所述位置信息为所述上行数据对应的ACK/NACK信息的第一个比特在所述ACK/NACK信息序列包含的所有比特中的索引时，根据所述索引从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的第一个比特；根据所述上行数据对应的ACK/NACK信息的比特数，从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的其它比特。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是预设的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
可选地，作为一个实施例，所述第一DCI还包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
可选地，作为一个实施例，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
图6是本发明实施例的网络侧设备的示意性结构图。图6的网络侧设备600包括：
接收模块610，用于接收终端设备发送的上行数据；
确定模块620，用于确定与所述上行数据对应的ACK/NACK信息；
发送模块630，用于向所述终端设备发送第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息。
本发明实施例中，通过DCI来承载ACK/NACK信息可以在已有的控制信道资源中传输ACK/NACK信息，不需要像LTE***中为ACK/NACK信息设计独立的信道(PHICH)并分配独立的物理资源，从而提高了资源利用率。另外，DCI的传输方式与PHICH相比，可靠性更高。
可选地，作为一个实施例，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
可选地，作为一个实施例，所述发送模块630还用于：向所述终端设备发送指示信息，所述指示信息用于指示所述上行数据对应的ACK/NACK信息的位置信息。
可选地，作为一个实施例，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。。
可选地，作为一个实施例，所述发送模块630还用于：向所述终端设备发送所述上行数据的调度信息，以便于所述终端设备根据所述调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：调度所述上行数据的DCI占用的控制 信道单元CCE；所述上行数据占用的物理资源；所述上行数据的解调参考信息DMRS配置信息。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是预设的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
可选地，作为一个实施例，所述DCI包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
可选地，作为一个实施例，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
图7是本发明实施例的终端设备的示意性结构图。图7的终端设备700包括：
存储器710，用于存储程序；
收发器720，用于向网络侧设备发送上行数据；
所述收发器720还用于接收所述网络侧设备发送的第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息；
处理器730，用于执行所述存储器710中存储的程序，当所述程序被执行时，所述处理器730用于根据所述接收模块520接收的第一DCI确定与所述上行数据对应的ACK/NACK信息。
本发明实施例中，通过DCI来承载ACK/NACK信息可以在已有的控制信道资源中传输ACK/NACK信息，不需要像LTE***中为ACK/NACK信息设计独立的信道(PHICH)并分配独立的物理资源，从而提高了资源利用率。另外，DCI的传输方式与PHICH相比，可靠性更高。
可选地，作为一个实施例，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK 信息序列包含与所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
可选地，作为一个实施例，所述处理器730具体用于：确定所述上行数据对应的ACK/NACK信息的位置信息；根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述收发器720还用于接收所述网络侧设备发送的指示信息；所述处理器730具体用于根据所述接收模块接收到的所述指示信息，确定所述上行数据对应的ACK/NACK信息的位置信息。
可选地，作为一个实施例，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。
可选地，作为一个实施例，所述处理器730具体用于：根据所述上行数据的调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：调度所述上行数据的DCI占用的控制信道单元CCE；所述上行数据占用的物理资源；所述上行数据的解调参考信息DMRS配置信息。
可选地，作为一个实施例，所述处理器730具体用于：当所述位置信息为所述上行数据对应的ACK/NACK信息在所述ACK/NACK信息序列中的索引时，根据所述索引在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述处理器730具体用于：当所述位置信息为所述上行数据对应的ACK/NACK信息的第一个比特在所述ACK/NACK信息序列包含的所有比特中的索引时，根据所述索引从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的第一个比特；根据所述上行数据对应的ACK/NACK信息的比特数，从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的其它比特。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是预设的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
可选地，作为一个实施例，所述第一DCI还包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
可选地，作为一个实施例，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
图8是本发明实施例的网络侧设备的示意性结构图。图8的终端设备800包括：
存储器810，用于存储程序；
收发器820，用于接收终端设备发送的上行数据；
处理器830，用于执行所述存储器810中存储的程序，当所述程序被执行时，所述处理器830用于确定与所述上行数据对应的ACK/NACK信息；
所述收发器820还用于向所述终端设备发送第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息。
本发明实施例中，通过DCI来承载ACK/NACK信息可以在已有的控制信道资源中传输ACK/NACK信息，不需要像LTE***中为ACK/NACK信息设计独立的信道(PHICH)并分配独立的物理资源，从而提高了资源利用率。另外，DCI的传输方式与PHICH相比，可靠性更高。
可选地，作为一个实施例，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
可选地，作为一个实施例，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
可选地，作为一个实施例，所述收发器820还用于：向所述终端设备发 送指示信息，所述指示信息用于指示所述上行数据对应的ACK/NACK信息的位置信息。
可选地，作为一个实施例，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。。
可选地，作为一个实施例，所述收发器820还用于：向所述终端设备发送所述上行数据的调度信息，以便于所述终端设备根据所述调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：调度所述上行数据的DCI占用的控制信道单元CCE；所述上行数据占用的物理资源；所述上行数据的解调参考信息DMRS配置信息。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数是预设的。
可选地，作为一个实施例，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
可选地，作为一个实施例，所述DCI包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
可选地，作为一个实施例，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，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发明的范围。
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，上述描 述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
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***，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或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。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，在本发明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。
所述功能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，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明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部分可以以软件产品的形式体现出来，该计算机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台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明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(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (50)

  1. 一种反馈ACK/NACK信息的方法，其特征在于，包括：
    终端设备向网络侧设备发送上行数据；
    所述终端设备接收所述网络侧设备发送的第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息；
    所述终端设备根据所述第一DCI确定与所述上行数据对应的ACK/NACK信息。
  2. 如权利要求1所述的方法，其特征在于，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
  3. 如权利要求2所述的方法，其特征在于，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
  4. 如权利要求2或3所述的方法，其特征在于，所述终端设备根据所述第一DCI确定与所述上行数据对应的ACK/NACK信息，包括：
    所述终端设备确定所述上行数据对应的ACK/NACK信息的位置信息；
    所述终端设备根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
  5. 如权利要求4所述的方法，其特征在于，所述终端设备确定所述上行数据对应的ACK/NACK信息的位置信息，包括：
    所述终端设备接收所述网络侧设备发送的指示信息；
    所述终端设备根据所述指示信息，确定所述上行数据对应的ACK/NACK信息的位置信息。
  6. 如权利要求5所述的方法，其特征在于，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。
  7. 如权利要求4所述的方法，其特征在于，所述终端设备确定所述上行数据对应的ACK/NACK信息的位置信息，包括：
    所述终端设备根据所述上行数据的调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，
    所述上行数据的调度信息包含下列信息中的至少一种：
    调度所述上行数据的DCI占用的控制信道单元CCE；
    所述上行数据占用的物理资源；
    所述上行数据的解调参考信息DMRS配置信息。
  8. 如权利要求4-7中任一项所述的方法，其特征在于，所述终端设备根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息，包括：
    当所述位置信息为所述上行数据对应的ACK/NACK信息在所述ACK/NACK信息序列中的索引时，所述终端设备根据所述索引，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
  9. 如权利要求4-7中任一项所述的方法，其特征在于，所述终端设备根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息，包括：
    当所述位置信息为所述上行数据对应的ACK/NACK信息的第一个比特在所述ACK/NACK信息序列包含的所有比特中的索引时，所述终端设备根据所述索引从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的第一个比特；
    所述终端设备根据所述上行数据对应的ACK/NACK信息的比特数，从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的其它比特。
  10. 如权利要求1-9中任一项所述的方法，其特征在于，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
  11. 如权利要求1-9中任一项所述的方法，其特征在于，所述上行数据对应的ACK/NACK信息的比特数是预设的。
  12. 如权利要求1-11中任一项所述的方法，其特征在于，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
  13. 如权利要求1-12中任一项所述的方法，其特征在于，所述第一DCI还包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
  14. 如权利要求1-13中任一项所述的方法，其特征在于，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
  15. 一种反馈ACK/NACK信息的方法，其特征在于，包括：
    网络侧设备接收终端设备发送的上行数据；
    所述网络侧设备确定与所述上行数据对应的ACK/NACK信息；
    所述网络侧设备向所述终端设备发送第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息。
  16. 如权利要求15所述的方法，其特征在于，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
  17. 如权利要求16所述的方法，其特征在于，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
  18. 如权利要求16或17所述的方法，其特征在于，所述方法还包括：
    所述网络侧设备向所述终端设备发送指示信息，所述指示信息用于指示所述上行数据对应的ACK/NACK信息的位置信息。
  19. 如权利要求18所述的方法，其特征在于，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。
  20. 如权利要求17或18所述的方法，其特征在于，所述方法还包括：
    所述网络侧设备向所述终端设备发送所述上行数据的调度信息，以便于所述终端设备根据所述调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：
    调度所述上行数据的DCI占用的控制信道单元CCE；
    所述上行数据占用的物理资源；
    所述上行数据的解调参考信息DMRS配置信息。
  21. 如权利要求15-20中任一项所述的方法，其特征在于，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
  22. 如权利要求15-20中任一项所述的方法，其特征在于，所述上行数据对应的ACK/NACK信息的比特数是预设的。
  23. 如权利要求15-22中任一项所述的方法，其特征在于，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
  24. 如权利要求15-23中任一项所述的方法，其特征在于，所述DCI包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
  25. 如权利要求15-24中任一项所述的方法，其特征在于，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
  26. 一种终端设备，其特征在于，包括：
    发送模块，用于向网络侧设备发送上行数据；
    接收模块，接收所述网络侧设备发送的第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息；
    确定模块，用于根据所述接收模块接收的所述第一DCI确定与所述上行数据对应的ACK/NACK信息。
  27. 如权利要求26所述的终端设备，其特征在于，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
  28. 如权利要求27所述的终端设备，其特征在于，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
  29. 如权利要求27或28所述的终端设备，其特征在于，所述确定模块 具体用于：
    确定所述上行数据对应的ACK/NACK信息的位置信息；
    根据所述位置信息，在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
  30. 如权利要求29所述的终端设备，其特征在于，所述接收模块还用于接收所述网络侧设备发送的指示信息；
    所述确定模块具体用于根据所述接收模块接收到的所述指示信息，确定所述上行数据对应的ACK/NACK信息的位置信息。
  31. 如权利要求30所述的终端设备，其特征在于，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。
  32. 如权利要求29所述的终端设备，其特征在于，所述确定模块具体用于：
    根据所述上行数据的调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，
    所述上行数据的调度信息包含下列信息中的至少一种：
    调度所述上行数据的DCI占用的控制信道单元CCE；
    所述上行数据占用的物理资源；
    所述上行数据的解调参考信息DMRS配置信息。
  33. 如权利要求29-32中任一项所述的终端设备，其特征在于，所述确定模块具体用于：
    当所述位置信息为所述上行数据对应的ACK/NACK信息在所述ACK/NACK信息序列中的索引时，根据所述索引在所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息。
  34. 如权利要求29-32中任一项所述的终端设备，其特征在于，所述确定模块具体用于：
    当所述位置信息为所述上行数据对应的ACK/NACK信息的第一个比特在所述ACK/NACK信息序列包含的所有比特中的索引时，根据所述索引从所述ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的第一个比特；
    根据所述上行数据对应的ACK/NACK信息的比特数，从所述 ACK/NACK信息序列中确定所述上行数据对应的ACK/NACK信息的其它比特。
  35. 如权利要求26-34中任一项所述的终端设备，其特征在于，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
  36. 如权利要求26-34中任一项所述的终端设备，其特征在于，所述上行数据对应的ACK/NACK信息的比特数是预设的。
  37. 如权利要求26-36中任一项所述的终端设备，其特征在于，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
  38. 如权利要求26-37中任一项所述的终端设备，其特征在于，所述第一DCI还包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
  39. 如权利要求26-38中任一项所述的终端设备，其特征在于，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI进行加扰。
  40. 一种网络侧设备，其特征在于，包括：
    接收模块，用于接收终端设备发送的上行数据；
    确定模块，用于确定与所述上行数据对应的ACK/NACK信息；
    发送模块，用于向所述终端设备发送第一下行控制信息DCI，其中，所述第一DCI包含与所述上行数据对应的ACK/NACK信息。
  41. 如权利要求40所述的网络侧设备，其特征在于，所述第一DCI包含ACK/NACK信息序列，所述ACK/NACK信息序列由多个ACK/NACK信息组成，所述ACK/NACK信息序列包含与所述上行数据对应的ACK/NACK信息。
  42. 如权利要求41所述的网络侧设备，其特征在于，所述多个ACK/NACK信息分别对应多个终端设备的上行数据传输，或者，所述多个ACK/NACK信息分别对应所述终端设备的多次上行数据传输。
  43. 如权利要求41或42所述的网络侧设备，其特征在于，所述发送模块还用于：
    向所述终端设备发送指示信息，所述指示信息用于指示所述上行数据对应的ACK/NACK信息的位置信息。
  44. 如权利要求43所述的网络侧设备，其特征在于，所述指示信息承载在所述网络侧设备发送给所述终端设备的RRC信令或者第二DCI中，其中，所述第二DCI为用于调度所述上行数据的DCI。
  45. 如权利要求42或43所述的网络侧设备，其特征在于，所述发送模块还用于：
    向所述终端设备发送所述上行数据的调度信息，以便于所述终端设备根据所述调度信息确定所述上行数据对应的ACK/NACK信息的位置信息，其中，所述上行数据的调度信息包含下列信息中的至少一种：
    调度所述上行数据的DCI占用的控制信道单元CCE；
    所述上行数据占用的物理资源；
    所述上行数据的解调参考信息DMRS配置信息。
  46. 如权利要求40-45中任一项所述的网络侧设备，其特征在于，所述上行数据对应的ACK/NACK信息的比特数是根据所述终端设备单次上行传输所支持的最大传输块数或者所述上行数据包含的传输块数确定的。
  47. 如权利要求40-45中任一项所述的网络侧设备，其特征在于，所述上行数据对应的ACK/NACK信息的比特数是预设的。
  48. 如权利要求40-47中任一项所述的网络侧设备，其特征在于，所述上行数据对应的ACK/NACK信息的比特数大于所述上行数据包含的传输块数，所述上行数据对应的ACK/NACK信息的第一类比特位用于指示所述上行数据包含的传输块对应的ACK/NACK信息，所述上行数据对应的ACK/NACK信息中除第一类比特之外的剩余比特位为固定值或者与第一类比特位相同的值。
  49. 如权利要求40-48中任一项所述的网络侧设备，其特征在于，所述DCI包含混合自动重传请求HARQ时序信息，所述HARQ时序信息用于指示所述上行数据的HARQ重传时序。
  50. 如权利要求40-49中任一项所述的网络侧设备，其特征在于，所述第一DCI的循环冗余码校验CRC校验码通过公共的无线网络临时标识RNTI 进行加扰。
PCT/CN2016/092359 2016-07-29 2016-07-29 反馈ack/nack信息的方法、终端设备和网络侧设备 WO2018018620A1 (zh)

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